Supercharger Patents (Class 123/559.1)
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Patent number: 8826892Abstract: In a method for operating an internal combustion engine having a compressor, the diagnosing of a clutch of the compressor is achieved without an additional sensor system. The compressor is turned on via the clutch, and a variable characterizing the air-mass flow to the internal combustion engine is ascertained. A first value of the variable characterizing the air mass flow before turning on the compressor is compared to a second value of the variable characterizing the air mass flow after turning on the compressor by closing the clutch, and an error is detected as a function of a deviation between the first value and the second value of the variable characterizing the air mass flow.Type: GrantFiled: February 18, 2010Date of Patent: September 9, 2014Assignee: Robert Bosch GmbHInventors: Matthias Heinkele, Patrick Menold, Michael Drung
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Patent number: 8820709Abstract: A turbine housing includes a wastegate chamber with a wastegate opening; and a wastegate disposed in the wastegate chamber where the wastegate includes a plug configured to plug the wastegate opening and where the plug includes a surface; a shaft configured for receipt by a bore in a wall of the wastegate chamber; and a rotatable arm extending from the shaft where the arm has a surface configured for contacting the surface of the plug for a closed orientation of the plug with respect to the wastegate opening to transmit force from the arm more centrally to the plug. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.Type: GrantFiled: March 14, 2011Date of Patent: September 2, 2014Assignee: Honeywell International Inc.Inventors: Alain Lombard, Nicolas Serres
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Patent number: 8813492Abstract: A diesel or diesel-like internal combustion engine drivably connected to a variable internal compression ratio supercharger that supplies varying amounts of air to the engine responsive to the load requirements of the engine. The supercharger has a pair of rotors concurrently driven by the engine to move air to the engine. A slide assembly associated with screw rotors is movable with a controller relative to the rotors to bypass air to atmosphere and regulate the amount of air and pressure of the air compressed by the screw rotors to the engine to increase the engine's efficiency.Type: GrantFiled: October 14, 2009Date of Patent: August 26, 2014Assignee: Hansen Engine CorporationInventors: Craig N. Hansen, Paul C. Cross
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Patent number: 8807100Abstract: An engine is equipped with a supercharger (exhaust turbocharger) which is rotationally driven by means of exhaust gas and in which an expansion ratio is settable greater than a compression ratio. The engine includes: an operation state determination unit that determines an operation state of the engine; a plurality of exhaust valves provided at a single cylinder; a variable exhaust valve timing mechanism that is capable of changing opening timing of at least one exhaust valve among the exhaust valves; and a controller that, when it is determined by the operation state determination unit that the engine is operated with low load and is acceleration time, transmits a command to the variable exhaust valve timing mechanism and advances the opening timing of the at least one exhaust valve relative to the opening timing of another exhaust valve. Thereby, supercharging response and the expansion ratio are maintained.Type: GrantFiled: November 8, 2010Date of Patent: August 19, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Eiichi Kamiyama
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Publication number: 20140224227Abstract: According to the present invention, torque controllability may be improved in a situation in which there is a gap between a required torque and a current torque based on a supercharge delay of a supercharger when calculation of a target throttle divergence using an air reverse model is applied to a supercharged internal combustion engine. Although the control unit of the present invention usually determines the required torque as a target torque, the control unit determines a value lower than the current torque when a reduction direction change occurs in the required torque while there is the gap between the required torque and the current torque. Desirably, the control unit determines a target torque reduction correspondingly to a decrease in the required torque, and determines a target torque reduction subtracted from the current torque as the target torque.Type: ApplicationFiled: July 5, 2011Publication date: August 14, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi Yoshizaki, Kiyonori Takahashi, Masashi Shibayama
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Publication number: 20140224230Abstract: A supercharger system is disclosed herein having a front end, a rear end, an inlet and an outlet, the system contained within a housing, wherein the supercharger system includes a rotor assembly, and a plurality of intake runners that comprise an interlaced cross-runner pattern, wherein the supercharger system comprises a front drive, front inlet configuration and an inverted orientation.Type: ApplicationFiled: April 21, 2014Publication date: August 14, 2014Inventors: Robert Simons, Chad Magana
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Patent number: 8793998Abstract: A torque transmission device includes a first shaft is coaxially borne relative to a second shaft via at least one roller bearing. An adjusting device adjusts the amount of torque transmitted from the first shaft to the second shaft by changing the internal bearing friction experienced by the at least one roller bearing. In one embodiment, the adjusting device causes one ring of the at least one roller bearing to axially displace relative to a second ring of the at least one roller bearing, thereby changing the amount of bearing friction experienced by roller bodies disposed between the first and second rings and thus the amount of torque transmitted from the first shaft to the second shaft.Type: GrantFiled: December 10, 2009Date of Patent: August 5, 2014Assignee: Aktiebolaget SKFInventor: Marco Schmitt
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Publication number: 20140209071Abstract: A supercharger system includes a supercharger main housing enclosing one or more active components for moving air from an upstream side to a downstream side of the supercharger main housing. The system includes a supercharger inlet housing mounted at the upstream side of the supercharger main housing and a re-circulation line. The re-circulation line provides fluid communication between the downstream side of the supercharger main housing and the supercharger inlet housing. The line includes a flow diverter having first and second portions within the supercharger inlet housing. The first portion defines a first re-circulation flow direction and the second portion defines a second re-circulation flow direction. The second direction may be 45-135 degrees relative to the first recirculation direction.Type: ApplicationFiled: January 24, 2014Publication date: July 31, 2014Inventors: Kenneth A. Rienas, Jon P. Trudeau
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Patent number: 8783234Abstract: An engine unit includes an engine body, and a supercharging machine having a main body. The main body of the supercharging machine is coupled to the engine body via a component or a member disposed therebetween.Type: GrantFiled: September 29, 2008Date of Patent: July 22, 2014Assignee: Kawasaki Jukogyo Kabushiki KaishaInventor: Toshio Araki
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Publication number: 20140196696Abstract: A supercharged internal combustion engine may include a twin-flow turbine with variable vane geometry. One example method to operate the device permits optimized operation of the internal combustion engine at low exhaust gas flow rates.Type: ApplicationFiled: January 13, 2014Publication date: July 17, 2014Applicant: Ford Global Technologies, LLCInventors: Vanco Smiljanovski, Helmut Matthias Kindl, Uwe Spaeder, Rob Stalman
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Patent number: 8769949Abstract: Disclosed is a control system and method for controlling a superturbocharged engine system in various operation modes. Throttle control mode may idle the superturbocharger during low and medium engine loads, so that boost is not created in the intake manifold. During high engine load conditions (open throttle), boosting occurs in response to the driver, operator, or control system requesting increased engine loads. For transient control mode, the control system may respond to transient conditions in response to engine speed and load so that the engine does not bog down or overcome vehicle traction limits. The control system may also predict future operating points.Type: GrantFiled: July 26, 2011Date of Patent: July 8, 2014Assignee: Vandyne Superturbo, Inc.Inventors: Ed VanDyne, Jared William Brown, Volker Schumacher, Christopher J. Chadwell
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Patent number: 8763586Abstract: An engine system includes a throttle valve configured to variably open and close to selectively restrict a volume of air flow. The engine system also includes a supercharger comprising an air inlet, an air outlet, a rotatable drive shaft and rotors associated with the drive shaft, wherein the supercharger is sized to have a flow rate that substantially prevents backwards leaking of air flow. The engine system further includes a combustion engine comprising combustion chambers and an associated rotatable crank shaft and a continuously variable transmission (CVT) configured to variably transfer rotational energy between the drive shaft and the crank shaft.Type: GrantFiled: May 27, 2013Date of Patent: July 1, 2014Assignee: Eaton CorporationInventors: Daniel Robert Ouwenga, Karen E. Bevan
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Patent number: 8752531Abstract: A supercharger cooling system provides a path for coolant from an air/coolant heat exchanger to a supercharger intercooler and then loops around the supercharger housing proximal to a hot outlet end of the supercharger and back to the heat exchanger. The heat exchanger may be a dedicated air/coolant heat exchanger or be a vehicle radiator. The intercooler is sandwiched between the supercharger and intake manifold and cools the flow of hot compressed air from the supercharger into the intake manifold. The supercharger cooling loop cools the bearings and seals, the forward ends of the male and female rotors, and the male and female rotor gears. The cooling loop is preferably located between the supercharger rotors and the rotor drive gears to form a barrier to heat. A dedicated pump cycles the coolant flow and restrictions control the flow of coolant to the supercharger.Type: GrantFiled: September 30, 2013Date of Patent: June 17, 2014Inventors: James E. Bell, Jan-Erik Oscarsson
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Publication number: 20140158095Abstract: A method for providing air to a combustion chamber of an engine, the engine including an intake manifold selectably coupled to a boost tank. The method comprises pressurizing and storing air in the boost tank, discharging some of the air stored in the boost tank to the intake manifold, and releasing condensate from the boost tank.Type: ApplicationFiled: February 18, 2014Publication date: June 12, 2014Applicant: Ford Global Technologies, LLCInventor: Ross Dykstra Pursifull
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Publication number: 20140150754Abstract: A compressor housing includes a housing body for enclosing an impeller, an inlet portion for introducing air toward the impeller, and a port portion arranged adjacent to the inlet portion. A valve body for opening and closing a bypass passage, which bypasses the impeller, can be rested against the port portion. A connection hole, to which a return passage for returning blow-by gas of an internal combustion engine is connected, is formed in a side wall of the inlet portion. The inlet portion and the port portion have a common wall. A communication hole, which configures a part of the return passage, is formed in the common wall. The communication hole is formed such that the projection plane defined by projecting the communication hole onto a surface of the side wall having the connection hole along the axis of the communication hole is contained in the connection hole.Type: ApplicationFiled: August 10, 2011Publication date: June 5, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Norihiko Sumi
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Patent number: 8739751Abstract: A method for operating an engine of a motor vehicle is provided. The method comprises operating at least one turbocharger, operating a start/stop automatic system which automatically switches off the internal combustion engine when a stop condition is met, and automatically starts the internal combustion engine when a starting condition is met, and when the stop condition is met, delaying the automatic switching off of the internal combustion engine by a predefinable delay time (?t). In one example, automatic shut off of the engine may be delayed in order ensure adequate cooling of the turbocharger.Type: GrantFiled: October 31, 2011Date of Patent: June 3, 2014Assignee: Ford Global Technologies, LLCInventors: Harald Stoffels, Ludwig Stump
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Publication number: 20140144412Abstract: It is intended to provide: an electric supercharging apparatus wherein, with a simple structure, rotor windage loss in an electric motor for driving a compressor is reduced and good cooling performance is produced; and a multi-stage supercharging system using the electric supercharging device. This electric supercharging apparatus is provided with: a first cooling passage formed in a stator along a motor coil and communicating a gas supply port with a gas discharge port in a motor housing; and a first intake passage connecting the gas discharge port to an intake port of a compressor. This electric supercharging apparatus is configured to introduce outside air into the first cooling passage via the gas supply port by applying negative pressure to the first cooling passage via the first intake passage, thereby cooling the inside of the motor housing.Type: ApplicationFiled: July 5, 2012Publication date: May 29, 2014Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Byeongil An, Motoki Ebisu, Hiroshi Suzuki
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Patent number: 8726891Abstract: A method for providing air to a combustion chamber of an engine, the engine including a compressor and a boost tank selectably coupled to an intake manifold. The method comprises admitting air from the compressor to the intake manifold via a main throttle valve, storing some air from the compressor in a boost tank, and discharging some of the air stored in the boost tank to the intake manifold via an auxiliary throttle valve distinct from the main throttle valve.Type: GrantFiled: February 8, 2013Date of Patent: May 20, 2014Assignee: Ford Global Technologies, LLCInventors: Ross Dykstra Pursifull, Joseph Norman Ulrey
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Publication number: 20140130782Abstract: A supercharger cooling system provides a path for coolant from an air/coolant heat exchanger to a supercharger intercooler and then loops around the supercharger housing proximal to a hot outlet end of the supercharger and back to the heat exchanger. The heat exchanger may be a dedicated air/coolant heat exchanger or be a vehicle radiator. The intercooler is sandwiched between the supercharger and intake manifold and cools the flow of hot compressed air from the supercharger into the intake manifold. The supercharger cooling loop cools the bearings and seals, the forward ends of the male and female rotors, and the male and female rotor gears. The cooling loop is preferably located between the supercharger rotors and the rotor drive gears to form a barrier to heat. A dedicated pump cycles the coolant flow and restrictions control the flow of coolant to the supercharger.Type: ApplicationFiled: September 30, 2013Publication date: May 15, 2014Inventors: James E. Bell, Jan-Erik Oscarsson
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Patent number: 8720392Abstract: A blower system for an engine includes a base of a blower scroll coupled to an engine crankcase. The base has a bottom wall with an opening sized to accommodate an end of a crankshaft. The base also has a sidewall extending away from the crankcase. The blower system further includes a blower housing fastened to the base, without the use of threaded fasteners. Together the blower housing and the base form a chamber having an inlet and an outlet. Also, the blower system includes a fan within the chamber. The fan is driven by the crankshaft and is designed to direct a flow of air through the outlet of the chamber.Type: GrantFiled: February 21, 2013Date of Patent: May 13, 2014Assignee: Briggs & Stratton CorporationInventors: Carl T. Tiefenthaler, Benjamin R. Miller, Chad J. Gartzke, John R. Schneiker, Greg Hupfer, David W. Branski
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Patent number: 8713938Abstract: A method for providing air to a combustion chamber of an engine, the engine including an intake manifold selectably coupled to a boost tank. The method comprises pressurizing and storing air in the boost tank, discharging some of the air stored in the boost tank to the intake manifold, and releasing condensate from the boost tank.Type: GrantFiled: April 16, 2013Date of Patent: May 6, 2014Assignee: Ford Global Technologies, LLCInventor: Ross Dykstra Pursifull
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Publication number: 20140116403Abstract: Problem In an air intake structure for an internal combustion engine 1 where a compressor impeller 22 of a turbocharger 20 is disposed in an air intake passage (4) of the internal combustion engine 1, not to prevent an ice clump 15 from appearing on an inner wall surface of the air intake passage (4), but prevents this ice clump 15 from colliding with the compressor impeller 22, especially, a vane 22a of the compressor impeller 22 when the ice clump 15 formed on the inner wall surface of the air intake passage (4) peels off. Solution A capture member 30 is provided upstream side with respect to the compressor impeller 22 in the air intake passage (4). The capture member 30 is configured to capture an ice clump 15 formed at an inner wall surface of the air intake passage (4) when the ice clump 15 peels off.Type: ApplicationFiled: May 19, 2011Publication date: May 1, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Osamu Igarashi
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Patent number: 8707931Abstract: An engine supercharging device includes are a supercharger (38) for pressurizing air introduced in an engine (E), an air cleaner (36) for purifying an ambient air, a purified air supply passage (56) for supplying a purified air (CA) from the air cleaner (36) towards the supercharger (38), a supercharged air passage (62) for supplying the supercharged air (SA) from the supercharger (38) towards an air intake passage (60) of the engine (E), and a relief valve (68) for adjusting an air pressure within the supercharged air passage (62). The relief valve (68) has a discharge port portion (68b) which is accommodated within the air cleaner (36). The engine (E) has a plurality of engine cylinders, and a downstream portion of the supercharged air passage (62) is defined by an intake air chamber (54) for supplying the sucked air to respective air intake passages (60) of the plural engine cylinders.Type: GrantFiled: April 6, 2012Date of Patent: April 29, 2014Assignee: Kawasaki Jukogyo Kaubshiki KaishaInventors: Hisatoyo Arima, Yoshinobu Tanaka
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Publication number: 20140109882Abstract: A method for monitoring the leak tightness of a fuel tank system is provided, the fuel tank system being provided for supplying fuel to a supercharged internal combustion engine. A pressure accumulator is filled from the supercharged intake manifold area of the internal combustion engine. The pressure from the pressure accumulator is transferred to the fuel tank system, which includes in particular the fuel tank and, if necessary, an activated carbon filter. The pressure curve in the closed fuel tank system is observed. A leak in the fuel tank system may be inferred on the basis of the pressure curve, if necessary.Type: ApplicationFiled: October 18, 2013Publication date: April 24, 2014Applicant: ROBERT BOSCH GMBHInventors: Johannes Hoegl, Silke Haag, Guenther Koessler, Andreas Pape, Thomas Herges, Cam Lai Ngo, Guido Schock
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Patent number: 8701635Abstract: A supercharger system is disclosed herein having a front end, a rear end, an inlet and an outlet, the system contained within a housing, wherein the supercharger system includes a rotor assembly, and a plurality of intake runners that comprise an interlaced cross-runner pattern, wherein the supercharger system comprises a front drive, front inlet configuration and an inverted orientation.Type: GrantFiled: November 3, 2009Date of Patent: April 22, 2014Inventors: Robert Simons, Chad Magana
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Publication number: 20140090373Abstract: Artificial aspiration methods and systems for increasing engine efficiency and or power. The methods include determining an engine operation status, determining an artificial aspiration goal value based on the engine operating status, determining an artificial aspiration system configuration based on the artificial aspiration goal value and the engine operating status, and configuring the artificial aspiration system to obtain the determined artificial aspiration system configuration. The system includes a plurality of sensors for sensing characteristics of an operating engine, and an artificial aspiration control unit comprising a processor connected to receive the sensed characteristics of the engine.Type: ApplicationFiled: October 1, 2012Publication date: April 3, 2014Inventor: Adam Timmons
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Patent number: 8683800Abstract: A vacuum source arbitration system is disclosed. In one example, vacuum is supplied to a vacuum reservoir via an ejector during a first condition, and vacuum is supplied to the vacuum reservoir via an engine intake manifold during a second condition. The approach may provide a desired level of vacuum in a reservoir while reducing engine fuel consumption.Type: GrantFiled: March 17, 2011Date of Patent: April 1, 2014Assignee: Ford Global Technologies, LLCInventors: Ralph Wayne Cunningham, Moses Alexander Fridman, Todd Anthony Rumpsa, Mansour Beshay, Cliff Maki, Ross Dykstra Pursifull
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Patent number: 8683985Abstract: A belted gear assembly for driving a supercharger includes a belt drive assembly for operatively connecting a gear drive assembly to an existing pinion shaft of an engine. The belt drive assembly includes a lower pulley assembly that is operatively connected to the pinion shaft and belted to an upper pulley assembly. The upper pulley assembly is operatively connected to a side gear of the gear drive assembly. The side gear engages an upper gear of the gear drive assembly, which is operatively connected to a lobe of the supercharger. Rotation of the upper gear thereby initiates rotation of the supercharger. The amount of boost provided to the supercharger is readily adjustable by simply changing the lower pulley assembly to adjust the RPM ratio for the supercharger. Each component of the belted gear assembly is isolated and fully self-contained, including a separate lubrication system and collection well.Type: GrantFiled: June 14, 2011Date of Patent: April 1, 2014Inventor: Stephen J. Thomson
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Publication number: 20140069396Abstract: The invention relates to a controlled object (63, 52) for variably controlling a control amount relating to the engine and an actuator for changing the operation state of the controlled object. The control device comprises means for determining a control signal to be given to the actuator for feedback controlling the driving state of the actuator to accomplish the target operation state. The control device changes the operation state of the controlled object by driving the actuator when no fuel is supplied to the combustion chamber, measures as a control amount change delay time, the time from the start of the driving of the actuator until the start of the control amount and sets a feedback gain used in the determination of the control signal by the actuator control means in consideration of the measured control amount change delay time.Type: ApplicationFiled: May 26, 2011Publication date: March 13, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Akiyuki Iemura
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Patent number: 8667952Abstract: This disclosure provides a control device for a diesel engine. When the engine is within a particular operating range with a low engine speed and a partial engine load and in a low temperature state where a cylinder temperature at a compression stroke end is lower than a predetermined temperature, a forced induction system sets a forcibly inducting level higher than a predetermined level that is higher than that in a high temperature state where the cylinder temperature is above the predetermined temperature. At least within the particular operating range, an injection control module performs a main injection where a fuel injection starts at or before a top dead center of the compression stroke to cause main combustion mainly including diffusion combustion and performs a pre-stage injection where the fuel injection is performed at least once prior to the main injection to cause pre-stage combustion before the main combustion starts.Type: GrantFiled: August 10, 2011Date of Patent: March 11, 2014Assignee: Mazda Motor CorporationInventors: Kim Sangkyu, Daisuke Shimo, Kyotaro Nishimoto, Yoshie Kakuda
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Patent number: 8662036Abstract: A method for operating an internal combustion engine includes controlling a variable valve drive for at least one intake valve and at least one exhaust valve of at least one working cylinder of an internal combustion engine in dependence on operating states of the internal combustion engine. The valve drive is variable with regard to valve control times and/or a valve lift. The operating states of the internal combustion engine are defined by load demands, rotational speeds, load conditions and/or torque conditions. Valve operating states of the variable valve drive are set in dependence on the operating states of the internal combustion engine. The valve operating states can increase a charge of a working cylinder, provide an overlap of opening times of intake and exhaust valves, minimize fuel consumption or operate an intake valve in an expansion mode or according to a Miller/Atkinson process.Type: GrantFiled: March 15, 2013Date of Patent: March 4, 2014Assignee: Volkswagen AktiengesellschaftInventors: Jens Kühlmeyer, Paul Gnegel, Florian Noodt
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Patent number: 8666636Abstract: A control apparatus for a supercharged internal combustion engine, which can achieve a target torque accurately even if the target torque contains a high-frequency vibration component. The control apparatus determines a target air quantity and a target boost pressure from a target torque, operates an actuator for air quantity control according to the target air quantity, and operates an actuator for boost pressure control according to the target boost pressure. The target torque is formed to contain a low-frequency torque component that is set at all times based on a torque requirement from a driver and a high-frequency torque component that is set as necessary for a specific type of vehicle control. When the target torque contains only the low-frequency torque component, the target boost pressure is formed using a pressure component corresponding to the low-frequency torque.Type: GrantFiled: January 14, 2011Date of Patent: March 4, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kiyonori Takahashi, Shinichi Soejima, Satoru Tanaka, Satoshi Yoshizaki
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Publication number: 20140053553Abstract: An EGR system is disclosed for reducing NOx emissions and that may eliminate the need for a SCR system. The disclosed EGR system includes dual valves, including a hot EGR valve disposed in the exhaust manifold and a cold EGR valve disposed upstream of the intake manifold. A VGT turbine with adjustable vanes may also be employed with a low pressure turbine. Intake air may proceed through both a high pressure compressor as well as a low pressure compressor and the high pressure compressor may be substantially bypassed by way of a bypass valve disposed between the low pressure compressor and the air intake. The EGR system may be controlled by adjusting the positions of the valves and VGT turbine vanes.Type: ApplicationFiled: August 24, 2012Publication date: February 27, 2014Applicant: CATERPILLAR, INC.Inventor: Matthew Thomas Wolk
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Publication number: 20140053547Abstract: An engine receiving boost from a supercharger and/or a turbocharger compressor is provided, along with methods for its operation. The engine may include inline cylinders arranged on an engine block and an integrated exhaust manifold (IEM), where exhaust flow from inner cylinders is kept separate from exhaust flow from outer cylinders within the IEM and where exhaust flow from the inner cylinders but not the outer cylinders flows through a turbine of the turbocharger. The supercharger and turbocharger compressor may be arranged in parallel upstream of an intake manifold of the engine, and throttles upstream of each of the supercharger and compressor may be controlled to direct intake air through one or both of the supercharger and the compressor based on engine operating conditions.Type: ApplicationFiled: August 21, 2012Publication date: February 27, 2014Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Robert Andrew Wade, John Christopher Riegger
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Patent number: 8646438Abstract: An air intake duct (54) for fluid connecting between an air intake control valve unit (52) and a supercharger (60) includes a duct inlet (56) fluid connected with an outlet port (52b) of the air intake control valve (52) and oriented in a first direction (D1), a duct outlet (58) fluid connected with a suction port (60a) of the supercharger (60) and oriented in a second direction (D2) substantially perpendicular to the first direction (D1), and a duct body (74) for defining an air intake passage (78) extending from the duct inlet (56) to the duct outlet (58). The duct body (74) has a portion confronting the duct outlet (58), which is formed with a guide projection (80) that protrudes towards the duct outlet (58).Type: GrantFiled: June 25, 2012Date of Patent: February 11, 2014Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Daisuke Saeki, Kazuo Tanaka
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Publication number: 20140034026Abstract: A control device is provided that acquires an estimated value of a waste gate valve opening, derives a first relation which is established between a throttle downstream pressure and an intake valve flow rate based on the estimated value, and derives a second relation which is established between the throttle downstream pressure and the throttle flow rate from a throttle model based on a measured value of a throttle opening and a measured value of a throttle upstream pressure. Subsequently, the control device calculates an estimated value of the intake valve flow rate based on the first relation and the second relation, and regulates a correspondence relation of the estimated value of the waste gate valve opening and the manipulated variable of the waste gate valve based on a comparison result of the estimated value of the intake valve flow rate and a measured value of an intake flow rate.Type: ApplicationFiled: April 18, 2011Publication date: February 6, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Machiko Katsumata, Ryutaro Moriguchi
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Publication number: 20140020664Abstract: An engine includes an injector, an ignition plug, a supercharger, an electronic throttle device, and an EGR apparatus. An EGR passage has an inlet connected to an exhaust passage downstream of a turbine and an outlet connected to the intake passage upstream from a compressor. A fresh-air introduction passage is arranged to introduce fresh air to a surge tank downstream from the electronic throttle device and a fresh-air control valve is provided to regulate a fresh air amount. When an ECU determines that the engine is under deceleration and under fuel supply, the ECU closes the electronic throttle device to a predetermined opening degree to scavenge EGR gas flowing from the EGR passage and remaining in the intake passage, opens a fresh-air control valve to a predetermined opening degree, and causes the ignition plug to retard an ignition timing.Type: ApplicationFiled: July 2, 2013Publication date: January 23, 2014Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Mamoru YOSHIOKA, Takehide NAKAMURA
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Patent number: 8627803Abstract: An engine assembly may include an engine structure, a first intake valve, a first valve lift mechanism, a second intake valve, a second valve lift mechanism, and a boost mechanism. The first intake valve may be located in a first intake port and the first valve lift mechanism may be engaged with the first intake valve. The second intake valve may be located in a second intake port and the second valve lift mechanism may be engaged with the second intake valve and operable in first and second modes. The second intake valve may be displaced to an open position during the first mode and may be maintained in a closed position during the second mode. The boost mechanism may be in communication with an air source and the first intake port and isolated from the second intake port.Type: GrantFiled: November 17, 2010Date of Patent: January 14, 2014Assignee: GM Global Technology Operations LLCInventor: Edward J. Keating
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Patent number: 8622032Abstract: Improvements in a gas powered engine. Said improvements include use of a piston with a fixed piston arm that extends through a seal in the lower portion of the cylinder. The piston arm operates on an elliptical crank that drives the output shaft. Valves that move air and exhaust into and out of the pistons are lifted by a cam located on the crank. A unique oil injector passes oil to the piston and the cylinder wall. An energy recovery unit recovers energy from the cooling system and from the exhaust system.Type: GrantFiled: May 15, 2012Date of Patent: January 7, 2014Inventor: Mustafa Rez
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Publication number: 20140000570Abstract: Systems, devices, and methods are disclosed for diverting a portion of intake airflow from a pressure source to an air compressor in an internal combustion engine system. The intake airflow is diverted for air compressor airflow at the intake of the pressure source before it is pressurized by the pressure source.Type: ApplicationFiled: June 27, 2012Publication date: January 2, 2014Inventor: Dale G. Gibby
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Patent number: 8616185Abstract: A supercharged internal combustion engine is disclosed which includes a supercharger operatively connected to the crankshaft via a clutch supported by an intermediate shaft such that torque variations are partially absorbed by the clutch.Type: GrantFiled: March 6, 2012Date of Patent: December 31, 2013Assignee: BRP-Powertrain GmbH & Co. KGInventors: Johann Wilflinger, Markus Hochmayr, Karl Lagler, Karl Glinsner
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Publication number: 20130340726Abstract: An engine is provided. The engine includes a piston operable to reciprocate in a cylinder, a crankshaft rotatably coupled to the piston, and a supercharger rotatably coupled to the crankshaft. The supercharger has an unequal distribution of mass along a longitudinal plane of the supercharger to provide a rotational counterbalance to reduce engine imbalance.Type: ApplicationFiled: June 26, 2012Publication date: December 26, 2013Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Ray Alan Kach, Michael Bruno Magnan, Robert Andrew Wade, Vince Paul Solferino, David E. Masser, Jeffrey Eliot Chottiner
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Patent number: 8612122Abstract: A method controls an internal-combustion engine (1) supercharged by a turbocharger (12) and including a turbine (13) and compressor (14). The control method comprises steps of determining a current reduced-mass-flow rate (QAHR) of the compressor (14), determining a safety threshold (Mmax_turbo) of the reduced-mass-flow rate (QAHR) that delimits in a “reduced-mass-flow rate/compression ratio” plane an area substantially close to achievement of sonic conditions, and imposing that the reduced-mass-flow rate (QAHR) has to be lower than a safety threshold (Mmax_turbo) of the reduced-mass-flow rate (QAHR).Type: GrantFiled: September 27, 2011Date of Patent: December 17, 2013Assignee: Magneti Marelli S.p.A.Inventor: Marco Panciroli
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Patent number: 8602742Abstract: A method is provided for regulating a charge air pressure of an engine having an exhaust gas supercharger, a fresh gas supply device, an air system having an air treatment system and a compressor chargeable by the supercharger, and an engine controller. The method detects an engine torque requirement; determines a current charge air pressure and a current pressure of the air system; compares the current charge air pressure to a target charge air pressure corresponding to the torque requirement, compares the current air system pressure to a target operating air system pressure, and regulates the charge air pressure by suppressing supply of compressed air from the supercharger to the compressor when the current charge air pressure is less than the corresponding target charge air pressure and the current pressure of the air system is greater than or equal to the target operating pressure of the air system.Type: GrantFiled: August 4, 2011Date of Patent: December 10, 2013Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Manuel Marx, Eduard Gerum, Huba Nemeth
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Publication number: 20130319380Abstract: An induction system for an internal combustion engine having at least one cylinder includes a centrifugal compressor configured to pressurize an airflow being received from the ambient. The induction system also includes an intake manifold configured to channel the pressurized airflow to the at least one cylinder. The centrifugal compressor is disposed within and integral to the intake manifold. An internal combustion engine employing such an induction system is also disclosed.Type: ApplicationFiled: May 30, 2012Publication date: December 5, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Daniel J. Hommes, Carnell E. Williams
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Publication number: 20130312714Abstract: Provided is a control device for an internal combustion engine equipped with a supercharger, including: operation state detection means for detecting an operation state of the internal combustion engine; overlap read means for reading a valve overlap period; collector pressure detection means for detecting a collector pressure; exhaust gas pressure estimation means for estimating an exhaust gas pressure on an upstream side of the supercharger; and scavenging amount estimation means for estimating a scavenging amount based on the operation state, the valve overlap period, the collector pressure, and the exhaust gas pressure.Type: ApplicationFiled: January 30, 2012Publication date: November 28, 2013Inventors: Takeshi Tsuyuki, Naozumi Katou, Daisuke Takaki
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Publication number: 20130291840Abstract: A stratified scavenging two-stroke engine includes: a crankcase (2); a cylinder (3) being provided with a cylinder bore (31); an intake passage (4) supplying air-fuel mixture into the crankcase (2) via an intake port (4A); a scavenging passage (5) supplying the air-fuel mixture from the crankcase (2) into the cylinder bore (31) via a scavenging port (5A); a leading-air passage (6) supplying leading air into the scavenging passage (5); and an exhaust passage (7) being disposed on an opposite side of the intake passage (4) with the cylinder bore (31) interposed therebetween, the exhaust passage (7) discharging exhaust gas via an exhaust port, in which the scavenging passage (5) includes a main passage (51) provided near the exhaust port and a sub passage (52) provided near the intake port (4A), the main passage (51) and the sub passage (52) are isolated from each other by a partition (25, 34) that extends over substantially an entire length of the main passage (51) and the sub passage (52), the sub passage (52)Type: ApplicationFiled: February 3, 2011Publication date: November 7, 2013Applicant: HUSQVARNA ZENOAH CO., LTD.Inventors: Ryou Ono, Mikihiro Asahina
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Patent number: 8572963Abstract: A supercharged internal combustion engine includes a motor unit having a head and an exhaust manifold. A turbocharger assembly is fluid dynamically connected to the exhaust manifold, wherein the turbocharger assembly includes a turbine, a central body and a compressor. The turbocharger assembly includes a lubrication channel for the passage of a lubricating fluid hydraulically connected to a lubrication circuit of the motor unit of said internal combustion engine. The turbine includes a jacket, provided at least in part in a body thereof, arranged for the passage of a cooling fluid and in hydraulic communication with an inlet channel and an outlet channel hydraulically connected to a cooling circuit of the motor unit of said internal combustion engine. The inlet channel, outlet channel and lubrication channel are integrated in said turbocharger assembly in correspondence of a connection interface between said turbocharger assembly and the motor unit.Type: GrantFiled: June 6, 2011Date of Patent: November 5, 2013Assignee: C.R.F. Società Consortile per AzioniInventors: Marco Cuniberti, Roberto Saretto, Damiano Micelli
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Patent number: 8567190Abstract: In an air supplier particularly for air supply systems for fuel cells including a compressor having a housing with a radial diffuser and including a rotor operated by an electric motor, a diverting channel is connected to the radial diffuser providing a communication path guiding the air via an axial annular channel to an inwardly extending collecting chamber via a final diffuser formed by a curved end section of a wall delimiting the annular passage and an inwardly curved wall area of the collection chamber, the compressor housing having an outer diameter is not substantially larger than the outer diameter of the electric motor.Type: GrantFiled: December 22, 2009Date of Patent: October 29, 2013Assignee: Daimler AGInventors: Siegfried Sumser, Manfred Stute, Paul Löffler
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Patent number: 8561403Abstract: A super-turbocharger utilizing a high speed, fixed ratio traction drive that is coupled to a continuously variable transmission to allow for high speed operation is provided. A high speed traction drive is utilized to provide speed reduction from the high speed turbine shaft. A second traction drive provides infinitely variable speed ratios through a continuously variable transmission. Gas recirculation in a super-turbocharger is also disclosed.Type: GrantFiled: February 5, 2010Date of Patent: October 22, 2013Assignee: Vandyne Super Turbo, Inc.Inventors: Ed VanDyne, Barry T. Brinks, Michael B. Riley, Jared William Brown