Having Multiple Oxidant Inlet Means Patents (Class 123/308)
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Patent number: 12084995Abstract: The combustion chamber inlet of a lean-burn gasoline engine (110) is connected to an air intake port outlet (15a, 15b) and comprises a throat where the air intake port (10) outlet meets the combustion chamber inlet. A movable valve (51) comprises a bottom surface (61) that faces the combustion chamber (50) and a tapered top surface (62) that faces the air intake port (10). The movable valve (51) is arranged to move between a closed state for closing off the combustion chamber inlet and an opened state wherein intake air can flow from the air intake port (10) into the combustion chamber (50). The throat comprises a tapered surface (71) that is complementary with the tapered top surface (62) of the movable valve (51).Type: GrantFiled: March 26, 2021Date of Patent: September 10, 2024Assignee: JAGUAR LAND ROVER LIMITEDInventors: Jack Johnson, Lyn McWilliam
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Patent number: 11898516Abstract: A cylinder head includes a cylinder head casting having four gas exchange openings formed in a fire deck. A bolt bore and a glow plug bore extend through the cylinder head casting between an upper surface and a lower surface. The four gas exchange openings are arranged at twelve o'clock, three o'clock, six o'clock, and nine o'clock positions, circumferentially around an injector bore center axis. The bolt bore is positioned angularly between the twelve o'clock position and the three o'clock position, and the glow plug bore is positioned angularly between the three o'clock position and the six o'clock position.Type: GrantFiled: August 25, 2021Date of Patent: February 13, 2024Assignee: Caterpillar Inc.Inventors: Timothy Adam Bazyn, Kevin Weiss, Brenton William Bush
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Patent number: 11852086Abstract: An engine includes water injection valves that inject water to intake ports connected to a cylinder. A controller for the engine is configured to selectively execute, for each of the intake ports, a synchronous injection that causes the water injection valve to inject water only during a valve opening period of the intake valve and an asynchronous injection that causes the water injection valve to inject water during a valve closing period of the intake valve. The controller is configured to perform, when executing a synchronous/asynchronous concurrent injection in which the intake ports includes an intake port in which the synchronous injection is executed and an intake port in which the asynchronous injection is executed, a switching process of switching the intake port in which the asynchronous injection is executed.Type: GrantFiled: March 20, 2023Date of Patent: December 26, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuki Suzuki, Tomihisa Tsuchiya
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Patent number: 11754025Abstract: An engine includes an intake manifold and an air-induction system configured to deliver air to the intake manifold. The air-induction system includes a throttle attached to the intake manifold, an air cleaner, conduit connecting between the air cleaner and the throttle to create a flow path therebetween, and a valve disposed in the flow path to be upstream of the throttle and downstream the air cleaner. The valve has a closed position in which the flow path is blocked to hold hydrocarbons within the intake manifold and inhibit emission therefrom and has an open position in which the flow path is unimpeded.Type: GrantFiled: December 8, 2020Date of Patent: September 12, 2023Assignee: Ford Global Technologies, LLCInventors: James Stevens, Brendan F. Diamond, David Guglielmo
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Patent number: 11739681Abstract: A far square or diamond architecture engine with tumble flow to support spark-ignited fuel usage. The engine may be provided in a configuration generally suited for swirl flow, compression combustion fuel usage. However, the introduction of a unique, replaceable valve head assembly may be utilized to induce tumble flow within a combustion chamber of the engine. Thus, spark-ignited fuel may be utilized without requiring vast overhaul of the engine to accommodate such fuels. Notably, with the addition of such an assembly, diesel fuel may be replaced with natural gas on large scale equipment without the requirement of impractically burdensome or expensive measures.Type: GrantFiled: September 7, 2021Date of Patent: August 29, 2023Assignee: Southwest Research InstituteInventors: Kevin L. Hoag, Anthony S. Perkins, Ian P. Gilbert, Christopher L. Wray, Marc C Megel, Zainal Abidin
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Patent number: 11692465Abstract: An internal combustion engine includes an electro-hydraulic system for variable actuation of intake valves where each cylinder has two intake valves, associated with two intake conduits. A first conduit is generates within the cylinder a tumble motion of airflow introduced therein, when the intake valve associated thereto is at least partially opened. The second intake conduit generates within the cylinder a swirl motion of airflow introduced therein when the second intake valve is at least partially opened. A controller of controls one or more control valves to open only one of the intake valves of each cylinder in a condition of reduced engine operation, below a predetermined load and/or a predetermined speed of the engine, and to always open both intake valves in the remaining conditions of engine operation. The first intake valve is the only valve to be opened in the reduced engine operation condition.Type: GrantFiled: August 6, 2020Date of Patent: July 4, 2023Assignee: C.R.F. Societa Consortile per AzioniInventors: Raffaele Ricco, Sergio Stucchi, Carlo Mazzarella, Onofrio De Michele
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Patent number: 11608798Abstract: The purpose of the present invention is to provide a gas engine and a ship provided with the same, the gas engine making it is possible to ensure a distance that enables fuel and an oxidizing agent to mix, and to evenly mix the oxidizing agent and the fuel even if the flow rate of gas traveling towards intake pipes varies. A gas engine (1) comprises: an intake passage (10) through which a gas flows; a plurality of intake pipes (12A, 12B) where the intake passage (10) branches apart at a branching section (14) that is downstream in the gas flow direction, the intake pipes opening to a cylinder (16) at the downstream end; and a fuel injection means (31) that injects fuel into the intake passage (10). The fuel injection means (31) is provided upstream of the branching section (14) in the gas flow direction, and injects varying quantities of fuel into the plurality of intake pipes (12A, 12B).Type: GrantFiled: July 25, 2018Date of Patent: March 21, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER LTDInventors: Shintaro Shuto, Satoshi Yamada, Kazuro Hotta, Tomohiro Noguchi, Kenichi Iizuka, Yuki Nakamura
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Patent number: 11506113Abstract: The present invention relates to a gas inlet device (1) for a cylinder of an internal combustion engine. The gas inlet device (1) comprises an inlet port (5), an inlet valve (4), a calibration (6) of the inlet valve (4), means for forming a tumble-type aerodynamic movement of the gas in the cylinder, and a mask (10). Furthermore, the intersection (7) between the inlet port (5) and the calibration (6) is along a straight line not parallel to the plane of the firing face (FF). In addition, the mask (10) is oriented in the same way as the end of the inlet port (5).Type: GrantFiled: March 27, 2020Date of Patent: November 22, 2022Assignee: IFP Energies nouvellesInventors: Xavier Gautrot, Julien Trost, Martin Ritter, Arnaud Krieger, Paul-Georgian Luca
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Patent number: 11415066Abstract: An internal combustion engine is provided, which includes a variable phase mechanism configured to change rotational phases of intake and exhaust camshafts so that a valve overlap is made. An intake cam lobe is formed such that an open period of the intake valve is 210° or larger and 330° or smaller of a crank angle. The exhaust cam lobe is formed such that, during the overlap period with the rotational phase of the intake camshaft advanced to the maximum and the rotational phase of the exhaust camshaft retarded to the maximum, an effective valve lift amount (Lift(CA)) of the exhaust valve which is a function of a crank angle from the open timing (CAIVO) of the intake valve to a middle timing (CAcenter) of the overlap period, an inner circumferential length (L_ex) of a valve seat, and a swept volume (V) per cylinder satisfy the following formula: 0 . 0 ? 1 ? 5 ? L ? _ ? ex V × ? C ? A IVO C ? A c ? e ? n ? t ? e ? r ? Lift ? ( CA ) ? d ? C ? A .Type: GrantFiled: December 2, 2021Date of Patent: August 16, 2022Assignee: Mazda Motor CorporationInventors: Tomonori Urushihara, Masanari Sueoka, Yusuke Kawai, Atsushi Inoue, Masatoshi Hidaka, Kota Matsumoto, Tota Tanii, Michiharu Kawano, Toru Miyamoto, Tsubasa Ito
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Patent number: 11225930Abstract: An engine includes a cylinder head, an intake manifold, and a partition wall. The cylinder head includes an intake port communicating with a combustion chamber. The intake manifold is fixed to the cylinder head and includes an intake passage communicating with the intake port. The partition wall that separates at least part of the intake port into a first channel and a second channel. The partition wall includes a partition wall member extending from the intake port to the intake passage and fixed to an inner wall of the intake port and an inner wall of the intake passage.Type: GrantFiled: June 11, 2020Date of Patent: January 18, 2022Assignee: SUBARU CORPORATIONInventors: Tetsu Naito, Shigeru Sakamoto
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Patent number: 11187169Abstract: A method of controlling a vehicle engine system is proposed. In the method, a controller selectively enables: an exhaust heat recovery mode where, with a bypass valve, exhaust gas bypassing an EGR cooler is prevented from joining and an EGR valve is closed; an EGR mode where, with the bypass valve, surplus exhaust gas, flowing through the EGR cooler is prevented from joining and the degree of opening of the EGR valve is adjusted; a complex mode where, with the bypass valve, a ratio between amounts of the surplus exhaust gas flowing through the EGR cooler and the exhaust gas bypassing the EGR cooler is adjusted and the degree of opening of the EGR valve is adjusted; and a high output mode where, with the bypass valve, the surplus exhaust gas flowing through the EGR cooler is prevented from joining to be discharged and the EGR valve is closed.Type: GrantFiled: October 23, 2020Date of Patent: November 30, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventor: Il Suk Yang
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Patent number: 11187182Abstract: A cylinder head includes an intake throat and an intake duct, a valve seat ring is provided in an inner ring of the intake throat; a section of the intake duct is a tumble generating duct; and an extending direction of the tumble generating duct is oblique relative to the cylinder head bottom surface, the lower side surface of the tumble generating duct is a tumble guide surface, the lower end of which forms a tumble generating sharp angle, and the projection of the tumble generating sharp angle on the upper end circular surface of the valve seat ring is a sharp angle projection, the sharp angle projection is a protruding area protruding from the edge of the upper end circular surface of the valve seat ring, and the width of the middle part of the sharp angle projection is larger than the width of both ends thereof.Type: GrantFiled: April 1, 2021Date of Patent: November 30, 2021Assignee: WEICHAI POWER CO., LTD.Inventors: Xuguang Tan, Dehui Tong, Shun Lv, Wei Li, Shaodong Zhang, Xiaolei Fu
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Patent number: 11149680Abstract: A weak tumble flow fast combustion system is provided. An intake throat and an exhaust throat are provided on a cylinder head, a section of an intake duct close to the intake throat is a tumble guide duct, an axis of the tumble guide duct is arranged obliquely with respect to the bottom surface of the cylinder head, and an upper side surface of the tumble guide duct is a flowing-down guide surface arranged obliquely with respect to the bottom surface of the cylinder head, a lower side surface of the tumble guide duct is an arc-shaped guide surface recessed toward the bottom surface of the cylinder head, an eccentric chamfer is provided at the lower end of the intake throat, and the eccentric direction of the eccentric chamfer is offset along the direction connecting the center of the intake throat to the exhaust throat.Type: GrantFiled: March 8, 2021Date of Patent: October 19, 2021Assignee: WEICHAI POWER CO., LTD.Inventors: Wei Li, Shun Lv, Jie Pan, Yungang Li, Yongliang Gao, Tao Liu
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Patent number: 11131280Abstract: An injector arrangement structure includes an air cleaner which is arranged at a rear side of an engine for a vehicle, a rear suspension which extends vertically at the rear side of the engine, and a first injector which is attached to the air cleaner. The air cleaner includes an outlet tube configuring a clean side of the air cleaner. The rear suspension and the outlet tube overlap each other in a side view. A partition wall dividing an intake passage vertically is provided inside the outlet tube. The first injector is attached from a lower side of the outlet tube so as to inject fuel toward the partition wall.Type: GrantFiled: April 10, 2019Date of Patent: September 28, 2021Assignee: SUZUKI MOTOR CORPORATIONInventors: Kensuke Suzuki, Atsushi Takaoka, Junpei Yamaguchi, Naotaka Kisakibaru
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Patent number: 11098671Abstract: A timing computation unit determines whether to execute compression latter-half injection to inject fuel in a latter half of a compression stroke of an internal combustion engine based on an operation state of the engine and computes an injection timing and an ignition timing of fuel. A timing correction unit corrects the computed injection timing to an advance side and corrects the computed ignition timing to a retard side, in a case where a detected fuel pressure is lower than a target fuel pressure. The timing correction unit corrects the computed injection timing to the retard side and corrects the computed ignition timing to the advance side, in a case where the detected fuel pressure is higher than the target fuel pressure. A combustion control unit controls a fuel injection device and an ignition device based on the injection timing and the ignition timing.Type: GrantFiled: August 6, 2020Date of Patent: August 24, 2021Assignee: DENSO CORPORATIONInventor: Kenji Aoyagi
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Patent number: 11053839Abstract: An intake device of an internal combustion engine includes a partition, a gap, and a projecting part. The partition divides an interior of an intake pipe into a first passage and a second passage. The gap exists at a boundary between an inner face of the intake pipe and the partition or in the partition, and couples the first passage and the second passage. The projecting part is disposed near the gap on a face of the partition or the inner face of the intake pipe that forms an inner face of the first passage, or on a face of the partition or the inner face of the intake pipe that forms an inner face of the second passage.Type: GrantFiled: April 4, 2019Date of Patent: July 6, 2021Assignee: SUBARU CORPORATIONInventor: Nozomu Terunuma
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Patent number: 10968815Abstract: A control system for an internal combustion engine (ICE) is provided including a control unit configured for operating an electrically controlled valve for supplying compressed air to at least one cylinder depending on an operational mode for the ICE. A method for controlling such an ICE (200), and a computer are also provided.Type: GrantFiled: December 7, 2015Date of Patent: April 6, 2021Assignee: VOLVO TRUCK CORPORATIONInventors: Stig Arne Svensson, Lennart Langervik, Björn Jacobsson, Viktor Huggare, Bengt Lassesson
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Patent number: 10830193Abstract: An intake manifold 10 includes: a blowby gas introduction port 16g that is configured to introduce blowby gas into a PCV chamber 15; a blowby gas exhaust port 16f that is configured to discharge the blowby gas from the PCV chamber 15 into a surge tank 11; and a drain hole 17c that is configured to discharge water contained in the blowby gas, from the PCV chamber 15 into the surge tank 11. A bottom wall 17d of the surge tank 11 includes protruding parts 17e, 17f that protrude upward, the blowby gas exhaust port 16f is located upstream of the most upstream side protruding part 17e located on the most upstream side, and the drain hole 17c is located downstream of the most upstream side protruding part.Type: GrantFiled: August 6, 2019Date of Patent: November 10, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Masatatsu Enami, Takeshi Honda, Yasushi Matsuura, Mikio Hara
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Patent number: 10815872Abstract: In an engine (1), an ignition plug (22) is arranged between a first intake port (6) and a second intake port (7). In a case where a downstream end portion (71) of the second intake port (7) is divided into a first intake port (6) side and an opposite first intake port (6) side, an inner wall surface (71a) of an opposite first intake port (6) side portion extends in a direction toward the first intake port (6) as extending from an upstream side to a downstream side of the second intake port (7).Type: GrantFiled: March 3, 2017Date of Patent: October 27, 2020Assignee: MAZDA MOTOR CORPORATIONInventors: Yasushi Nakahara, Yohei Suzuki, Tsuyoshi Yamamoto, Michiharu Kawano, Yuya Honda, Kento Onishi
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Patent number: 10767517Abstract: The invention relates to a variable valve drive of an internal combustion engine, comprising at least one functionally identical gas exchange valve per cylinder, the valve stroke of which is specified by at least one primary cam and at least one secondary cam of a camshaft. The valve stroke can be selectively transmitted to the at least one gas exchange valve by a switchable cam follower which has a primary lever and a secondary lever. A coupling element of the switchable cam follower is designed as a coupling pin which is guided in a transverse bore of the primary follower, which can be moved into an opposite coupling bore of the secondary lever by a switching pin. An outer end of the switching pin is connected to a switching rod via a connecting element, the switching rod arranged parallel to the camshaft and longitudinally movable by an actuator.Type: GrantFiled: January 24, 2018Date of Patent: September 8, 2020Assignee: Schaeffler Technologies AG & Co. KGInventors: Harald Elendt, Dimitri Schott
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Patent number: 10711708Abstract: A control device for an engine is provided, which includes a fuel injector attached to the engine, a spark plug disposed to be oriented into a combustion chamber, a swirl control valve provided in an intake passage, and a controller connected to the fuel injector, the spark plug, and the swirl control valve and configured to control the fuel injector, the spark plug, and the swirl control valve. The swirl control valve closes in a given operating state of the engine. The fuel injector injects fuel after the swirl control valve is closed, between intake stroke and an intermediate stage of compression stroke. The fuel injector injects the fuel after the first fuel injection. The spark plug performs the ignition after the second fuel injection so that the mixture gas starts combustion by flame propagation and then unburned mixture gas self-ignites.Type: GrantFiled: August 2, 2018Date of Patent: July 14, 2020Assignee: Mazda Motor CorporationInventors: Kota Matsumoto, Tomonori Urushihara, Masanari Sueoka, Keiji Maruyama, Toru Miyamoto, Yudai Koshiro, Gyetae Pak
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Patent number: 10704463Abstract: A method is provided for monitoring the operation of intake valves of an internal combustion engine, where at least one or more cylinders of the engine have more than one intake valve, and adapted to operate in different modes where at least one of the intake valves for a particular cylinder can be selectively activated, or deactivated so as not to open during a firing sequence for the cylinder. The method includes a) monitoring the intake manifold air pressure; b) during a time window with respect to the intake phase for said respective cylinder, determining the condition of whether the manifold pressure drops by a threshold or to a particular threshold level; and c) determining the functionality of the intake valves dependent on the outcome of step b).Type: GrantFiled: March 5, 2018Date of Patent: July 7, 2020Assignee: DELPHI TECHNOLOGIES IP LIMITEDInventors: Charles A. Iannone, Adam M. Agosti
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Patent number: 10605211Abstract: An intake port may include a short port and a long port. The short port may include a main extension portion extending from an intake air inlet; a main inclined portion inclined at a predetermined angle from the main extension portion toward a center of a cylinder; a main vertical portion bending downward toward the cylinder from the main inclined portion; and a main intake air outlet formed at an end portion of the main vertical portion. The long port may include an auxiliary extension portion extending from the main extension portion; an auxiliary inclined portion which is inclined at a predetermined angle from the auxiliary extension portion toward the center of the cylinder and inclined at a predetermined angle downward toward the cylinder; an auxiliary vertical portion bending downward from the auxiliary inclined portion; and an auxiliary intake air outlet at an end portion of the auxiliary vertical portion.Type: GrantFiled: October 11, 2018Date of Patent: March 31, 2020Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventor: Jiro Chu
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Patent number: 10550807Abstract: An intake port may include a short port and a long port. The short port may include a main extension portion extending from an intake air inlet; a main inclined portion inclined at a predetermined angle from the main extension portion toward a center of a cylinder; a main vertical portion which bends downward toward the cylinder from the main inclined portion; and a main intake air outlet formed at an end portion of the main vertical portion. The long port may include an auxiliary extension portion extending from the main extension portion; an auxiliary vertical portion bending downward toward the cylinder from the auxiliary extension portion; and a partition wall portion between the auxiliary extension portion and the auxiliary vertical portion, which allows the intake air to flow in a direction opposite to a direction in which the intake air introduced into the cylinder through the short port flows.Type: GrantFiled: September 13, 2018Date of Patent: February 4, 2020Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventor: Jae Hoon Kim
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Patent number: 10400716Abstract: An intake manifold includes a surge tank and left and right intake pipes containing one end sides each connected to the surge tank, and respectively extending to both side directions of the surge tank. A gas distribution passage portion to distribute exhaust gas to each of the left and right intake pipes is provided along a lower surface side of the surge tank and lower surface sides of the left and right intake pipes. An exhaust gas inlet and a gas distribution passage connected to the exhaust gas inlet are formed on the gas distribution passage portion. A communication hole to communicate an inside of each of the intake pipes and the gas distribution passage is formed on each of the left and right intake pipes.Type: GrantFiled: May 3, 2018Date of Patent: September 3, 2019Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Takuma Yamaguchi
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Patent number: 10330001Abstract: Methods and systems are provided for operating a split exhaust engine system that provides blowthrough air and exhaust gas recirculation to an intake passage via a first exhaust manifold and exhaust gas to an exhaust passage via a second exhaust manifold. In one example, in response to flowing the exhaust gas recirculation and blowthrough air from the first exhaust manifold to the intake passage via a first set of exhaust valves, a first set of swirl valves coupled upstream of a first set of intake valves may be adjusted to at least partially block intake air flow to the first set of intake valves. Each engine cylinder may include two intake valves including one of the first set of intake valves and two exhaust valves.Type: GrantFiled: December 16, 2016Date of Patent: June 25, 2019Assignee: Ford Global Technologies, LLCInventors: Thomas G. Leone, Joseph Norman Ulrey, Brad Alan Boyer
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Patent number: 10316763Abstract: A method for controlling valve timing of a turbo engine may include: classifying by a controller control regions depending on an engine speed and an engine load, and the control regions may include first, second, third, fourth, fifth, and sixth control regions. The method further includes: applying a maximum duration to an intake valve and controlling a valve overlap in the first control region; applying the maximum duration to the intake valve and exhaust valve in the second control region; advancing an intake valve closing (IVC) timing and an exhaust valve closing (EVC) timing in the third control region; approaching the IVC timing to a bottom dead center in a fourth control region; controlling a wide open throttle valve (WOT) in the fifth control region; and controlling the WOT and the IVC timing to reduce the knocking in the sixth control region.Type: GrantFiled: September 7, 2016Date of Patent: June 11, 2019Assignee: HYUNDAI MOTOR COMPANYInventors: In Sang Ryu, Kyoung Pyo Ha, You Sang Son, Kiyoung Kwon
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Patent number: 10316765Abstract: A control device for an internal combustion engine includes an intake-side variable valve timing mechanism and a controller. The intake-side variable valve timing mechanism is configured to continuously advance or retard a phase of a cam that actuates an intake valve. The controller is configured to actuate the intake-side variable valve timing mechanism toward a retardation side and position the intake-side variable valve timing mechanism at a prescribed position, and execute fail-safe control on the basis of a signal from a cam position sensor instead of a signal from the crank position sensor, when it is determined that there is a failure in a crank position sensor of the internal combustion engine.Type: GrantFiled: November 15, 2013Date of Patent: June 11, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Mitsuhiro Nomura
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Patent number: 10309274Abstract: For example, two intake valves for each cylinder each are driven by a selected one of cams via a corresponding rocker arm. Each rocker arm includes a support portion and a pressing portion (distal end portion). The support portion is rockably supported by a cylinder head. The pressing portion is configured to press a stem of the corresponding intake valve. The support portion of one of the rocker arms deviates to one side in an axis X direction (cam axial direction) with respect to the distal end portion. The support portion of the other one of the rocker arms deviates to the other side in the axis X direction with respect to the distal end portion.Type: GrantFiled: November 28, 2017Date of Patent: June 4, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshiyuki Yano, Yu Yokoyama, Yuta Nishimura, Atsuhisa Tamano, Soichiro Suga
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Patent number: 10302025Abstract: Systems, apparatus, and methods are disclosed that include an internal combustion engine having a plurality of cylinders operable by a valve actuation mechanism that opens and closes the intake and exhaust valves during nominal engine operations. In response to engine operations indicating a cylinder deactivation condition, one or more the cylinders is selected for deactivation and operated by combusting an amount of fuel that is effective to limit air flow through the deactivated cylinder(s) so that the air flow and combusted fuel amount are less than during nominal cylinder operations.Type: GrantFiled: January 17, 2017Date of Patent: May 28, 2019Assignee: Cummins Inc.Inventors: Kenneth M. Follen, Suk-Min Moon, Vivek A. Sujan, James Randall Nebergall
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Patent number: 10280858Abstract: An engine control device controls a cylinder direct fuel injection type spark ignition engine provided with a fuel injection valve configured to directly inject fuel into a cylinder and an ignition plug configured to perform spark ignition for a gas mixture inside the cylinder. The engine control device executes a catalyst warm-up operation for retarding an ignition timing, during a compression stroke of the fuel injection timing, in a case where it is necessary to warm up an exhaust gas purifying catalyst inserted into an exhaust passage. In addition, the engine control device increases a valve overlap period as a piston crown surface temperature increases during execution of the catalyst warm-up operation.Type: GrantFiled: April 20, 2015Date of Patent: May 7, 2019Assignee: NISSAN MOTOR CO., LTD.Inventors: Takeshi Tsuyuki, Yoshihiro Imaoka, Ryo Uchida, Takao Inoue
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Patent number: 10233878Abstract: A method for controlling a position of a flap of a variable port flap control module (VCM) may include determining whether a vehicle state satisfies a predetermined opening condition of the VCM, determining a VCM opening voltage in consideration of tolerance of the flap of the VCM when the vehicle state satisfies the opening condition of the VCM, and controlling the flap of the VCM to be in an opened state by applying the VCM opening voltage to a motor of the VCM when the opening condition of the VCM is satisfied, during an engine starts.Type: GrantFiled: December 6, 2016Date of Patent: March 19, 2019Assignee: Hyundai Motor CompanyInventor: Seung-Bum Kim
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Patent number: 10202918Abstract: The present disclosure provides a system and a method for controlling valve timing of continuous variable valve duration engine. The method includes: classifying control regions depending on engine speed and engine load; applying a maximum duration to an intake valve and controlling valve overlap between the intake valve and an exhaust valve in a first control region; applying the maximum duration to the intake valve and reducing the valve overlap by using exhaust valve closing (EVC) timing in a second control region; advancing intake valve closing (IVC) timing according to an increase of the engine load in a third control region; controlling a throttle valve to be fully opened and controlling the EVC timing to an angle after top dead center in a fourth control region; and controlling the throttle valve to be fully opened and controlling the IVC timing according to the engine speed in a fifth control region.Type: GrantFiled: November 1, 2016Date of Patent: February 12, 2019Assignee: HYUNDAI MOTOR COMPANYInventors: In Sang Ryu, Kyoung Pyo Ha, You Sang Son, Kiyoung Kwon
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Patent number: 10145312Abstract: The present disclosure provides a system and a method for controlling valve timing of a continuous variable valve duration engine. The method may include: classifying a plurality of control regions depending on an engine speed and an engine load; applying a maximum duration to an intake valve in a first control region; maintaining the maximum duration of the intake valve and controlling a valve overlap by using exhaust valve closing (EVC) timing in a second control region; advancing intake valve closing (IVC) timing in a third control region; controlling the IVC timing to be close to bottom dead center (BDC) in a fourth control region; controlling a throttle valve to be fully opened and generating a scavenging phenomenon in a fifth control region; and controlling the throttle valve to be fully opened and controlling the IVC timing to prevent knocking in a sixth control region.Type: GrantFiled: November 1, 2016Date of Patent: December 4, 2018Assignee: HYUNDAI MOTOR COMPANYInventors: In Sang Ryu, Kyoung Pyo Ha, You Sang Son, Kiyoung Kwon
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Patent number: 10100752Abstract: The present disclosure provides a system and a method for controlling valve timing of a continuous variable valve duration engine. The method may include: classifying a plurality of control regions depending on an engine speed and an engine load; applying a maximum duration to an intake valve in a first control region; maintaining the maximum duration of the intake valve and controlling a valve overlap by using exhaust valve closing (EVC) timing in a second control region; advancing intake valve closing (IVC) timing in a third control region; controlling the IVC timing to be close to bottom dead center (BDC) in a fourth control region; controlling a throttle valve to be fully opened and generating a scavenging phenomenon in a fifth control region; and controlling the throttle valve to be fully opened and controlling the IVC timing to prevent knocking in a sixth control region.Type: GrantFiled: November 1, 2016Date of Patent: October 16, 2018Assignee: HYUNDAI MOTOR COMPANYInventors: In Sang Ryu, Kyoung Pyo Ha, You Sang Son, Kiyoung Kwon
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Patent number: 10072588Abstract: The present disclosure provides a system and a method for controlling valve timing of a continuous variable valve duration engine. The method may include: classifying a plurality of control regions depending on an engine speed and an engine load; applying a maximum duration to an intake valve in a first control region; maintaining the maximum duration of the intake valve and controlling a valve overlap by using exhaust valve closing (EVC) timing in a second control region; advancing intake valve closing (IVC) timing in a third control region; controlling the IVC timing to be close to bottom dead center (BDC) in a fourth control region; controlling a throttle valve to be fully opened and generating a scavenging phenomenon in a fifth control region; and controlling the throttle valve to be fully opened and controlling the IVC timing to prevent knocking in a sixth control region.Type: GrantFiled: November 1, 2016Date of Patent: September 11, 2018Assignee: HYUNDAI MOTOR COMPANYInventors: In Sang Ryu, Kyoung Pyo Ha, You Sang Son, Kiyoung Kwon
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Patent number: 10054090Abstract: The present disclosure relates to fuel systems. Some embodiments of the teachings may include a fuel pump comprising: a pump piston having a longitudinal centerline; a camshaft with at least one cam; a roller tappet arranged between the pump piston and the cam; and a tappet body and a roller rotatably held on the roller tappet. The pump piston and the tappet body may be movement-coupled with regard to movements in directions parallel to the piston longitudinal centerline. The roller may be in contact with the cam. The longitudinal centerline may intersect a geometric axis of rotation of the roller. The tappet body defines a tappet body longitudinal centerline parallel to the piston longitudinal centerline. The tappet body longitudinal centerline, in a projected view oriented parallel to the geometric axis of rotation of the roller, runs with a lateral spacing to the piston longitudinal center line.Type: GrantFiled: August 20, 2015Date of Patent: August 21, 2018Assignee: CONTINENTAL AUTOMOTIVE GMBHInventor: Thomas Schmidbauer
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Patent number: 10018105Abstract: The present disclosure provides an engine structure for a vehicle. The engine structure includes: an intake port, a port plate provided in the single flow path of the intake port, and an injector. The port plate is longitudinally parallel to the flow path of the intake port so as to divide the flow path of the intake port into upper and lower flow paths, and the port plate includes an extension portion formed on part of a downstream end of the port plate such that the extension portion of the downstream end of the port plate extends longer than other portion of the downstream end of the port plate. In particular, the injector is provided in the intake port, and sprays fuel beyond the extension portion so as to inhibit the fuel from adhering to the port plate.Type: GrantFiled: July 25, 2016Date of Patent: July 10, 2018Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Dong Ho Chu, Nahm Roh Joo, Yang Geol Lee, Jong Il Park, Yong Hoon Kim, Myung Gu Ha, Dong Hee Han
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Patent number: 10001094Abstract: Methods and systems are provided for introducing a charge motion to a cylinder via a protrusion system coupled to an intake port of an engine. In one example, a system may include positioning a tongue from inside a spring-loaded casing to extend into air intake runner, generating desired tumble and swirl along an intake port proximate to an engine cylinder.Type: GrantFiled: June 14, 2016Date of Patent: June 19, 2018Assignee: Ford Global Technologies, LLCInventor: Christopher Donald Wicks
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Patent number: 9970365Abstract: An engine system provided. The engine system includes a rotatable flow guide including a flow altering surface positioned upstream of an intake valve having a first side with a curved contour, the flow altering surface generating tumble and swirl flow patterns of intake airflow entering a cylinder through the intake valve in a plurality of active positions. The engine system further includes a flow guide actuator rotating the flow altering surface to alter the tumble and swirl flow patterns of the intake airflow.Type: GrantFiled: March 9, 2016Date of Patent: May 15, 2018Assignee: Ford Global Technologies, LLCInventor: Xiaogang Zhang
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Patent number: 9926893Abstract: An exhaust gas recirculation device includes a housing including an inner wall defining an intake passage through which an intake air passes. The housing includes an outlet opening of an EGR gas provided in the inner wall, and a throttle valve positioned in the intake passage and generating a negative pressure at the outlet opening. The housing includes an intake air guide device provided in the housing and guiding the intake air, which has passed between the throttle valve and the inner wall of the housing, toward an axial center area of the intake passage. At least a part of the intake air guide device is positioned on an upstream side of the intake air with respect to the outlet opening.Type: GrantFiled: March 14, 2016Date of Patent: March 27, 2018Assignee: DENSO CORPORATIONInventor: Koji Hashimoto
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Patent number: 9790845Abstract: With regard to an internal combustion engine having a tumble flow formed in a cylinder, an object of the invention is to intensify the tumble flow. There is provided an internal combustion engine having a pent-roof type combustion chamber. In a predetermined area in the vicinity of an opening of an intake port to a combustion chamber, an upper wall surface of the intake port is extended approximately linearly while being inclined to an intake port-side ceiling surface more downward than a normal direction of the intake port-side ceiling surface in a side view. In a partial area in the predetermined area of the intake port, a distance between lateral wall surfaces on a left side and on a right side of the intake port is gradually increased toward downstream in a top view.Type: GrantFiled: March 11, 2016Date of Patent: October 17, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuyoshi Abe, Yasushi Yoshihara
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Patent number: 9790897Abstract: The invention relates to a gas distribution manifold (3) in the cylinder head of a heat engine of a motor vehicle, said manifold (3) comprising a manifold housing (31) provided with an inflow face for the inflow of an admission gas (G) and an outflow face (3B) entering the cylinder head of the engine, and an injection spout (6) for injecting a recirculated exhaust gas flow (H) of the engine into the admission gas flow (G), the manifold housing (31) and the injection spout (6) forming a single component. As the injection spout (6) comprises an open face, the manifold (3) is configured such that said open face is closed by an element outside the manifold (3), especially the cylinder head, in such a way as to form a tubular injection pipeline.Type: GrantFiled: March 28, 2011Date of Patent: October 17, 2017Assignee: Valeo Systemes ThermiquesInventors: Carlos Martins, Bertrand Gessier
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Patent number: 9784189Abstract: Methods and systems are provided for introducing a charge motion to a cylinder via a bladder in an intake manifold runner. In one example, a system may include positioning a bladder in an intake port proximate to a cylinder.Type: GrantFiled: January 28, 2015Date of Patent: October 10, 2017Assignee: Ford Global Technologies, LLCInventor: Christopher Donald Wicks
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Patent number: 9784225Abstract: An intake air control apparatus of an engine includes an Intake manifold configured to guide intake air into a plurality of engine cylinders. A plurality of first intake air passages communicate with the cylinders. A plurality of second intake air passages are disposed in parallel with the first intake air passages and communicate with the cylinders. An Intake throttle shaft passes through the first intake air passages. An intake air throttle valve is disposed inside the first intake air passages, rotates with the Intake throttle shaft, and opens/closes the first intake air passage. A swirl throttle shaft passes though the second intake air passages. A swirl throttle valve is disposed inside the second intake air passages, rotates together with the swirl throttle shaft, and opens/closes the second intake air passages. An actuator rotates selectively the Intake throttle shaft and the swirl throttle shaft. A controller controls the actuator.Type: GrantFiled: July 31, 2015Date of Patent: October 10, 2017Assignee: Hyundai Motor CompanyInventors: Hyoung Hyoun Kim, JongMan Jun
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Patent number: 9745916Abstract: An intake port is configured such that a center position of an intake upstream side opening is offset to one side in a juxtaposition direction of intake downstream side openings with respect to a center position between the intake downstream side openings in the juxtaposition direction as viewed in plan of a cylinder head. An injector is configured such that a fuel injection center axial line is inclined to the other side in the juxtaposition direction with respect to a center axial line of the intake upstream side opening as viewed in plan of the cylinder head.Type: GrantFiled: September 10, 2012Date of Patent: August 29, 2017Assignee: HONDA MOTOR CO., LTD.Inventors: Hitoshi Yokotani, Takaaki Shomura, Hiroshi Sotani, Teppei Maeda
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Patent number: 9695755Abstract: Methods and systems are provided for addressing pre-ignition occurring while operating with blow-though air delivery. A variable cam timing device used to provide positive intake to exhaust valve overlap is adjusted in response to an indication of pre-ignition to transiently reduce valve overlap. Pre-ignition mitigating load limiting and enrichment applied during a blow-through mode is adjusted differently from those applied when blow-through air is not being delivered.Type: GrantFiled: August 2, 2016Date of Patent: July 4, 2017Assignee: Ford Global Technologies, LLCInventors: Chris Paul Glugla, Robert Sarow Baskins, James Matthew Kindree, Paul A. Pietrzyk, Mark Paul Guerrier, Rama Sanghvi
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Patent number: 9670880Abstract: A gaseous fuel feed apparatus includes a first injector and a second injector which are provided in each cylinder of a gas engine. The first injector injects a gaseous fuel into an intake passage. The second injector injects the gaseous fuel in an injecting direction intersecting with an injecting direction of the gaseous fuel injected by the first injector, such that the gaseous fuel injected by the second injector collides with the gaseous fuel injected by the first injector. Thus, the gaseous fuel injected by the first injector can be forcibly pressed toward a flow of an air by utilizing an injection energy of the gaseous fuel injected by the second injector. Further, the first injector and the second injector may be placed at the same position of the intake passage, and can be placed at a position of the intake passage that is adjacent to a combustion chamber.Type: GrantFiled: May 20, 2015Date of Patent: June 6, 2017Assignee: DENSO CORPORATIONInventor: Takashi Furukawa
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Patent number: 9657633Abstract: First intake valve and second intake valve for an engine cylinder bore within which a piston reciprocates are arranged side-by-side in a cylinder head for motion in unison along respective intake valve axes. First intake valve axis is nonparallel to the cylinder bore axis. A first intake valve seat for the first intake valve is disposed in a plane which is non-parallel to a plane which is perpendicular to the cylinder bore axis. First intake valve seat has a first semi-circumference toward a second semi-circumference of a second valve seat for second intake valve. At least a portion of first semi-circumference is closer, as measured along a direction parallel to the cylinder bore axis, to a plane passing through the piston perpendicular to the cylinder bore axis than is the second semi-circumference as measured along a direction parallel to the cylinder bore axis.Type: GrantFiled: April 25, 2012Date of Patent: May 23, 2017Assignee: International Engine Intellectual Property Company, LLC.Inventor: Robert Lawrence Rowells
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Patent number: 9638148Abstract: An air intake chamber for a motorcycle is disposed downstream of a supercharger, for pressurizing and supplying an intake air to an engine, and upstream of a throttle body, for controlling the amount of the intake air to be supplied to an air intake port of the engine. The air intake chamber serves to accumulate the high pressure intake air discharged from the supercharger. The air intake chamber is provided with an injector, which has a fuel injecting port positioned at a location displaced from an axis of an outlet of the air intake chamber.Type: GrantFiled: November 11, 2015Date of Patent: May 2, 2017Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Hiroyuki Watanabe, Hisatoyo Arima, Satoaki Ichi, Yoshinobu Tanaka