Interconnection Between Passages Patents (Class 123/184.59)
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Patent number: 11773790Abstract: A throttle device 1 includes a throttle valve 2 which is disposed in an intake passage 101, and includes a first valve body 20 and a first rotatable shaft 21 for rotatably holding the first valve body 20, a bypass valve 3 which is disposed in a bypass passage 8 connected to the intake passage 101 so as to bypass the throttle valve 2, and includes a second valve body 30 and a second rotatable shaft 31 for rotatably holding the second valve body 30, a common motor 4 for applying a driving force to the throttle valve 2 and the bypass valve 3, a first gear 5 configured to be able to transmit or block the driving force of the motor 4 with respect to the first rotatable shaft 21, a second gear 6 configured to receive the driving force of the motor 4 and transmit the driving force to the second rotatable shaft 31, and a sensor 7 for detecting a rotation amount of the second rotatable shaft 31 of the bypass valve 3 or another rotatable shaft rotating in conjunction with the second rotatable shaft 31.Type: GrantFiled: March 16, 2021Date of Patent: October 3, 2023Assignee: MIKUNI CORPORATIONInventor: Jun Kiyono
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Patent number: 9027687Abstract: A first blowing section is arranged inside a cab body on a right side, and blows cool air or warm air. A second blowing section is arranged inside a cab body on a left side, and blows cool air or warm air. An inlet, a first vent, and a second vent are formed in a box body of a distribution box. The inlet opens toward the left side and introduces cool air or warm air from an air-conditioning unit. The first vent opens toward the right side. The second vent opens downward. A first duct, which is connected to the first vent, supplies the first blowing section with cool air or warm air. A second duct, which is connected to the second vent and extends beneath a seat, supplies the second blowing section with cool air or warm air.Type: GrantFiled: May 15, 2013Date of Patent: May 12, 2015Assignee: Komatsu Ltd.Inventors: Satoru Tokiwa, Naoki Kimura, Masahiko Hamaguchi
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Patent number: 8991366Abstract: A dual path fresh air system, having a first air supply path, the first path supplies air to at least one first cylinder set; a second air supply path, the second path supplies air to at least on second cylinder set; a first exhaust gas recirculation inlet fluidly connected to the first path to introduce recirculated exhaust gas into the first path; a second exhaust gas recirculation inlet fluidly connected to the second path to introduce recirculated exhaust gas into the second path; a first valve member, which is arranged upstream of the first exhaust gas recirculation inlet in the first path, wherein the first valve member controls fluid flowing through a cross section of the first path; and a second valve member which is arranged upstream of the second exhaust gas recirculation inlet in the second path, for controlling fluid flowing through a cross section of the second path.Type: GrantFiled: July 13, 2009Date of Patent: March 31, 2015Assignee: Mahle International GmbHInventors: Alfred Elsässer, Achim Gommel, Marco Warth
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Publication number: 20150059340Abstract: An engine is disclosed. The engine may have an air box. The engine may further have an opening into the air box. The engine may additionally have a baffle positioned adjacent the opening. The engine may also have a cylinder defining an intake port, with the intake port positioned in the air box. The baffle may be configured to deflect air that passes through the opening to direct the air away from the intake port of the cylinder.Type: ApplicationFiled: September 4, 2013Publication date: March 5, 2015Applicant: Electro-Motive Diesel, Inc.Inventors: Deep Bandyopadhyay, Farhan Devani
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Patent number: 8955484Abstract: An air intake control valve includes a body extending to divide an inner portion of a surge tank of a multi-cylinder internal combustion engine into two portions, the body serving as a divided surface to divide the inner portion of the surge tank into the two portions, a valve element operated to rotate for opening and closing a fluid passage formed at the body, and a seal member sealing between a sealed surface of the surge tank and an outer periphery of the body, the seal member including a seal portion constituted by two contact portions that make contact with the sealed surface in a state where the two contact portions extend in directions opposite from each other relative to the divided surface.Type: GrantFiled: November 22, 2011Date of Patent: February 17, 2015Assignee: Aisin Seiki Kabushiki KaishaInventors: Masato Ishii, Yusuke Yoshida
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Patent number: 8739752Abstract: An intake duct for a vehicle having an inlet port formed so that the open side faces obliquely upward. The intake duct includes an inlet part formed in a flat shape expanding in the lateral direction crossing an air stream direction and a deflector provided in an air stream passage of the inlet part and extending in the left-and-right direction of the air stream passage. The intake duct further includes a first support member, which is provided between the deflector and the lower wall portion of the inlet part, and a second support member, which is provided between the deflector and the upper wall portion of the inlet part.Type: GrantFiled: March 25, 2009Date of Patent: June 3, 2014Assignee: Inoac CorporationInventors: Shinichi Honzawa, Shinya Makihara, Koichi Hosaka
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Patent number: 8640667Abstract: A mounting device can mount an intake manifold to an engine and includes a bending moment applying device applying a bending moment to the intake manifold as the intake manifold is mounted to the engine.Type: GrantFiled: January 6, 2011Date of Patent: February 4, 2014Assignee: Aisan Kogyo Kabushiki KaishaInventors: Ichiro Hisada, Shoubin Han, Hironori Tanikawa
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Patent number: 8590504Abstract: A method and a system for controlling an intake system for an engine is disclosed. The method includes steps for selecting an intake mode according to the current engine speed and the current cylinder mode. The method may be used for controlling an intake system in conjunction with a multi-displacement engine having one or more cylinders that may be deactivated.Type: GrantFiled: May 8, 2009Date of Patent: November 26, 2013Assignee: Honda Motor Co., Ltd.Inventor: Todd R. Luken
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Patent number: 8528510Abstract: An intake assembly for a 3-cylinder, V-configured engine comprises an intake manifold configured to conduct combustion air to a first, two-cylinder, cylinder head housing assembly and a second, single-cylinder, cylinder head housing assembly. A centrally extending plenum defines a plenum axis. A first plurality of intake runners, in fluid communication with the plenum, extend from a front side and transition through a circumferential arc around an upper side to deliver combustion air to, the first, two-cylinder, cylinder head housing assembly. A single intake runner, in fluid communication with the centrally extending plenum, extends from a rear side and transitions through a circumferential arc around the upper side to deliver combustion air to, the second, single-cylinder, cylinder head housing assembly. A zip tube delivers combustion air to the central plenum at a location that is between one of the first plurality of intake runners and the single cylinder intake runner.Type: GrantFiled: January 12, 2011Date of Patent: September 10, 2013Assignee: GM Global Technology Operations LLCInventors: Alan W. Hayman, Eric C. Douse
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Patent number: 8485154Abstract: An intake manifold flange system prevents leakage between joining portions of an intake manifold and a cylinder head while permitting stress relief. A flange body has an opening for receiving a distal end of the intake manifold and fastener hole openings for fixing the flange body to the cylinder head. Spaced annular grooves are arranged in an axial direction of the intake manifold. O-rings of a dimension to extend from the annular grooves and provide a pressurized contact with the distal end of an intake manifold. An annular groove is formed at a surface opposite a mounting portion of the cylinder head and an O-ring seal enables offsetting of the flange body from the cylinder head surface.Type: GrantFiled: January 25, 2011Date of Patent: July 16, 2013Assignee: Sundance Enterprises Inc.Inventor: Takehiko Shibazaki
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Patent number: 8459225Abstract: An intake system (10) of an internal combustion engine includes an intake manifold (12) with at least two feed pipes (14) connected with cylinder head intake ports of the internal combustion engine and includes at least one intermediate chamber (30) having connections (34) to an interior volume (24) of each feed pipe (14). Each connection (34) can be opened or closed by way of an intake control valve (49) having a switch chamber (48) which has a connection (60, 62) to means for creating a pressure in the switch chamber (48). The switch chamber (48) is separated from the interior volumes (24) of the feed pipes (14) and the intermediate chamber (30) by a diaphragm (50).Type: GrantFiled: August 2, 2012Date of Patent: June 11, 2013Assignee: Mann + Hummel GmbHInventors: Thierry Marimbordes, Gerald De Cara
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Patent number: 8176889Abstract: An intake manifold for an engine includes a plurality of intake distribution pipes arranged in a side-by-side relation to one another; an intake inlet pipe provided in an end wall and arranged in a direction of the intake distribution pipes; a surge chamber provided inside the intake manifold, and providing communication between the intake inlet pipe and the intake distribution pipes; and an intake guide wall provided integrally with the intake manifold. The intake guide wall extending in the direction in which the intake distribution pipes are arranged. One surface of the intake guide wall is smooth-and-flat and the other side surface of the intake guide wall includes a plurality of thinned concave parts separated by a plurality of ribs provided between the concave parts.Type: GrantFiled: October 6, 2008Date of Patent: May 15, 2012Assignees: Keihin Corporation, Honda Motor Co., Ltd.Inventors: Shojiro Fukuda, Takahiro Taira
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Patent number: 8151754Abstract: An air-intake duct of the present invention, configured to guide air to a throttle device coupled to an engine, includes a main wall forming a main passage; and a sub-wall provided outside the main wall to form a sub-passage; wherein the sub-wall has a height smaller than a height of the main wall; and wherein the sub-passage is defined by an inner wall surface of the sub-wall and an outer wall surface of the main wall and is disposed on one side in a direction substantially perpendicular to a passage axis of the main passage.Type: GrantFiled: September 14, 2009Date of Patent: April 10, 2012Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Yoshiharu Matsuda, Takafumi Matsumoto, Naoki Yokoyama
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Publication number: 20110214640Abstract: An internal combustion engine includes a pair of adjacent cylinders, each one of the pair of adjacent cylinders includes a piston, a first intake valve, a second intake valve, a primary port associated with the first intake valve, and a secondary port associated with the second intake valve. Each of the ports is configured to provide a predominant direction of airflow therethrough during engine operation when viewed from above the cylinders and effectively oriented to provide respective in-cylinder air-swirl of opposite direction in each one of the pair of adjacent cylinders during an intake stroke of a respective piston.Type: ApplicationFiled: March 8, 2010Publication date: September 8, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Shengming Chang, Mark S. Huebler
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Publication number: 20100288221Abstract: An intake passage in an internal combustion engine includes an independent passage disposed in each of cylinders, and a common passage connected to the independent passage, to be commonly used by the different cylinders. A cross-sectional area of the independent passage disposed in the cylinder having the long passage length from an intake valve to a surge tank is made greater than that of the independent passage disposed in the cylinder having the short passage length.Type: ApplicationFiled: November 28, 2008Publication date: November 18, 2010Applicant: Toyota Jidosha Kabushiki KaishaInventors: Keiji Yoeda, Yasushi Ito, Shouji Katsumata, Hideyuki Nishida, Shiro Tanno
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Publication number: 20100282202Abstract: A method and a system for controlling an intake system for an engine is disclosed. The method includes steps for selecting an intake mode according to the current engine speed and the current cylinder mode. The method may be used for controlling an intake system in conjunction with a multi-displacement engine having one or more cylinders that may be deactivated.Type: ApplicationFiled: May 8, 2009Publication date: November 11, 2010Applicant: Honda Motor Co., Ltd.Inventor: Todd R. Luken
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Patent number: 7743744Abstract: An internal combustion engine for a vehicle comprises a pair of intake collectors (3A, 3B) and a communicating pipe (13) connecting the pair of intake collectors (3A, 3B). A negative pressure supply port (15) supplying intake negative pressure of the internal combustion engine to a brake booster is provided at an end of the communicating pipe (13). By providing an air amount deviation compensating arrangement which compensates for a deviation in the amounts of air flowing into the pair of intake collectors (3A, 3B) from the brake booster when braking of the vehicle is released, the amounts of air supplied to the internal combustion engine from the pair of the intake collectors (3A, 3B) are equalized.Type: GrantFiled: September 17, 2008Date of Patent: June 29, 2010Assignee: Nissan Motor Co., Ltd.Inventor: Hiroyuki Ichikawa
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Patent number: 7503303Abstract: A variable air intake control system includes first and second variable intake control valves, a vacuum tank, actuators, a one-way valve and a controller. The controller selectively is configured to control the first and second actuators to offset operating timings of the first and second variable intake control valves so as to suppress the noise in the one-way valve, when the first and second variable intake control valves are switched from a first operating state in which the first and second variable intake control valves are both in one of the open and closed states to a second operating state in which the first and second variable intake control valves are both in one of the open and closed states that is opposite to the first operating state.Type: GrantFiled: October 9, 2007Date of Patent: March 17, 2009Assignee: Nissan Motor Co., Ltd.Inventors: Haruki Morita, Kazuyuki Kogiso, Yoshinori Yakabe, Kazuhiro Fujiwara, Shigehiro Yamaki
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Patent number: 7487755Abstract: For a V-type engine which has an independent air-intake system for each one of banks, a vibration plate unit is disposed in the interior of a resonance conduit for obtaining the beneficial effects of resonant supercharging. In this vibration plate unit, a plate member made from metal is fitted in the interior of the resonance conduit via a support member made from rubber, and thereby it is arranged, while blocking mutual flow of air between the banks, also to obtain the beneficial effects of resonant supercharging by enabling the mutual transmission of pressure between surge tanks.Type: GrantFiled: November 7, 2006Date of Patent: February 10, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventor: Toshikazu Harada
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Publication number: 20090007876Abstract: An air induction system for a vehicle is disclosed, wherein the air induction system includes a resonator bypass valve for control of an air flow to an engine and engine induction noise levels emitted therefrom.Type: ApplicationFiled: July 3, 2007Publication date: January 8, 2009Inventors: Anthony Charles Arruda, James Bryan Bielicki, Mark Douglas Conley
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Patent number: 7357220Abstract: A control system (10) controls a variable acoustical damping device (20) disposed in a sound producing channel (5) of a vehicle engine (1). The control system includes a controller (12) and a selection device (14). The controller is coupled to the variable acoustical damping device and stores a plurality of control patterns (A. B) for different levels of acoustical damping of the acoustical damping device. The selection device outputs a selection signal to the controller so that the controller controls the variable acoustical damping device based on one of the control patterns corresponding to the selection signal.Type: GrantFiled: March 31, 2005Date of Patent: April 15, 2008Assignee: Toyota Boshoku Kabushiki KaishaInventor: Yukihisa Horikou
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Patent number: 7337877Abstract: The present invention provides a resonator for attenuating acoustic vibration from an air intake passage. The resonator includes a neck, a resonator chamber, a piston-type member, and an actuator. The neck is attached between the air passage and the resonator chamber. The neck has two overlapping portions allowing the neck to extend within the resonator chamber. The piston-type member is located within the resonator chamber and is translated by the actuator to change the volume of the resonator and the neck length. By changing the volume and neck length of the resonator, the frequency attenuated by the resonator can be adjusted.Type: GrantFiled: March 12, 2004Date of Patent: March 4, 2008Assignee: Visteon Global Technologies, Inc.Inventors: Lakhi N. Goenka, David J. Moenssen, John D. Kostun, Christopher E. Shaw
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Patent number: 7322333Abstract: An air intake structure is provided with an air intake control valve disposed in the air intake passage. The air intake control valve has a valve element pivotally mounted at one end adjacent to a passage wall of the air intake passage. The air intake control valve is configured to control a gas flow based on the rotational position of the valve element. At least one horizontal partitioning plate extends along the flow direction of an intake air. The horizontal partitioning plate can be stationary or moveable with the valve element. Optionally, the valve element has a swirl-producing notch and a vertical partitioning plate extends substantially perpendicular to the horizontal partitioning plate from a position corresponding to a vertical side edge of the swirl-producing notch when the air intake control valve is fully closed. The vertical partitioning plate can be stationary or moveable with the valve element.Type: GrantFiled: August 31, 2005Date of Patent: January 29, 2008Assignee: Nissan Motor Co., Ltd.Inventors: Hiroshi Isaji, Kouichi Mori, Shunichi Mitsuishi, Kimiyoshi Nishizawa
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Patent number: 7252064Abstract: A switchable air intake system for a multicylinder internal combustion engine has at least one short and one long intake manifold whose cross sections are controllable by at least one regulating unit as a function of operating parameters (in particular the rotational speed of the internal combustion engine). The short intake manifold for a first cylinder bank row and the long intake manifold for a second cylinder bank row of the internal combustion engine, are controllable via a joint regulating unit (56, 58).Type: GrantFiled: January 13, 2006Date of Patent: August 7, 2007Assignee: Dr. Ing. h.c.F. Porsche AktiengesellschaftInventors: Reinhard Koenneker, Walter Buck
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Patent number: 7131416Abstract: An engine air intake device comprises a collector divided by a partition wall into first and second volume chambers, first and second upstream intake pipe portions, a plurality of first and second downstream branch pipes, and a first communication valve. The first and second upstream intake pipe portions are connected to an upstream side of the first and second volume chambers, respectively. The first and second downstream branch pipes extend from the first and second volume chambers, respectively, to respective intake ports of first and second banks of first and second cylinders, respectively. The first communication valve is mounted to the partition wall in a position that does not interfere with a path of a main flow of intake air inside the collector and configured and arranged to allow communication between the first volume chamber and the second volume chamber when the first communication valve is open.Type: GrantFiled: June 3, 2005Date of Patent: November 7, 2006Assignee: Nissan Motor Co., Ltd.Inventors: Junya Sasaki, Atsurou Kotouge
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Patent number: 7032557Abstract: An internal combustion engine has an intake device (1), the intake pipes (5 to 8) for the intakes of cylinders of the internal combustion engine and actuators for adjusting the effective pipe lengths of the intake pipes (5 to 8) by closing or opening at least one opening of the intake pipes (5 to 8) up to a hollow body and at least one actuator for controlling the actuators. Within a first speed range whose upper limit is a first threshold value (N1), the actuators are moved into a closed position. For a speed (N), exceeding a first threshold value (N1) and being less than a second threshold value (N2), the actuators are moved into a leakage position. For a speed exceeding the second threshold value (N2), the actuators are moved into an open position.Type: GrantFiled: January 16, 2004Date of Patent: April 25, 2006Assignee: Siemens AktiengesellschaftInventors: Hubert Limbrunner, Frank Tettenborn, Berthold Wolfram
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Patent number: 7028679Abstract: Prior art air charge systems for ‘V’ configuration internal combustion engines use two turbochargers and two intercoolers, one for each bank of cylinders, and require relatively long and complex air ducts. The present invention provides a charge air system for a ‘V’ engine with two banks of cylinders. The system includes a compressor connected by a charge air conduit to a charge air cooler and a flow control valve in communication with first and second branch conduits, each adapted for connection to a bank of cylinders. A branch connector has one inlet in communication with the valve and two outlets in communication with the two branch conduits. The charge air conduit may be disposed in the ‘V’ between the two banks of cylinders. The system uses one compressor and one cooler, thereby reducing component and assembly costs for the engine and keeping air ducting relatively simple.Type: GrantFiled: October 17, 2003Date of Patent: April 18, 2006Assignee: Caterpillar Inc.Inventors: Paul D. Hillman, Stephen P. Middleton
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Patent number: 7004138Abstract: A servo-operated rotary vane valve is intended for external assembly through an opening in an engine inlet manifold passage with an integral rib formed therein. Baffling surfaces on the edge of the vane minimize pressure pulse communication over the rib when the valve is in the closed position.Type: GrantFiled: July 15, 2003Date of Patent: February 28, 2006Assignee: Eaton CorporationInventors: Robert D. Keller, Marc H. Sanderson, Kevin Petri, Robert J. Boychuk
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Patent number: 6932189Abstract: A device for noise structuring in a motor vehicle has a plurality of gas-carrying lines connected to an internal combustion engine. At least two of the gas-carrying lines are acoustically linked together by at least one connection.Type: GrantFiled: September 20, 2002Date of Patent: August 23, 2005Assignee: DaimlerChrysler AgInventors: Rolf Helber, Marcus Hofmann, Roudolf Starobinski
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Patent number: 6928980Abstract: A control device switches an engine between normal operation mode and special operation mode. In the normal operation mode, an independent cylinder configuration is formed to produce combustion independently in individual cylinders. In the special operation mode, a two-cylinder interconnect configuration is formed so that burned gas discharged from preceding cylinders currently in an exhaust stroke is introduced into following cylinders currently in an intake stroke through intercylinder gas channels, a lean mixture having a high air-fuel ratio is combusted in the preceding cylinders, and a mixture produced by supplying fuel to the burned gas is combusted in the following cylinders.Type: GrantFiled: September 21, 2004Date of Patent: August 16, 2005Assignee: Mazda Motor CorporationInventors: Masahisa Yamakawa, Keiji Araki, Takayoshi Hayashi, Toshiaki Nishimoto
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Patent number: 6722335Abstract: Air intake manifolds (32) for vehicle engines (50) may include a plate-shaped short runner valve (16) that is rotatably disposed within an aperture (19) of a wall partition (42). The valve (16) may be operated to open and close the aperture. A flange (22) may extend from an inner surface of the aperture and the flange may define a sealing face (22b). An elastic sealing member (21) may be disposed along a peripheral edge of the valve. The sealing member may include first and second projections (21a, 21b) extending from the peripheral edge of the valve. The first and second projections may be arranged in a substantially V-shape. Further, the terminal ends of the first and second projections are preferably disposed so as to closely contact the sealing face when the valve is rotated to the closed position.Type: GrantFiled: December 11, 2002Date of Patent: April 20, 2004Assignee: Aisan Kogyo Kabushiki KaishaInventors: Kazuhisa Nomura, Satoshi Hattori
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Patent number: 6675756Abstract: An air induction system for an engine is provided with a flow meter to sense a flow amount of air introduced into a combustion chamber of the engine. The air induction system includes an improved construction that can protect the flow meter from rigorous environment. The construction includes a primary intake passage through which the air flows. A secondary intake passage extends from the primary passage to communicate with the primary passage. At least a portion of the air flows through the secondary passage. A filter is disposed in the secondary passage to filtrate the portion of the air. The flow meter is positioned downstream of the filter in the secondary passage.Type: GrantFiled: October 17, 2001Date of Patent: January 13, 2004Assignee: Yamaha Marine Kabushiki KaishaInventor: Goichi Katayama
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Patent number: 6520146Abstract: A four-stroke internal combustion engine with at least two inlet valves and an inlet flow path with at least two inlet ports per cylinder which branch off from a common inlet pipe and are guided separately up to the inlet valves and of which at least one inlet port is designed as a charge loading port and at least one inlet port as a volumetric port, with a throttle device for volumetric control being provided in the inlet flow path and the inlet flow path is connected with a fuel supply device. In order to achieve in the simplest possible way an improvement of the exhaust gas quality at low fuel consumption, the fuel supply device is formed by a joint carburetor for both inlet ports, with preferably the carburetor being arranged in the zone of the branching of the inlet ports from the inlet pipe.Type: GrantFiled: March 12, 2001Date of Patent: February 18, 2003Assignee: AVL List GmbHInventor: Franz Laimböck
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Patent number: 6431136Abstract: An air intake system with resonance as well as ram charging. Ram charging is effected via intake ducts 15 and ram manifold 13, whereas resonance charging is effected by longitudinally adjustable resonance channels 12 and resonance manifold 11. The longitudinal adjustment of the resonance channels 12 is effected by rotatable control elements 22 driven by a motor 27, and the control elements 22 are accommodated in control housings 20 which communicate with the ram manifolds 13 via connecting ducts 34. The use of connecting ducts 34 allows a largely flexible arrangement of the control housings in relation to the intake manifold of the internal combustion engine. As a result the system can be advantageously and optimally adapted to the spatial characteristics within the engine compartment of a motor vehicle.Type: GrantFiled: March 22, 2001Date of Patent: August 13, 2002Assignee: Filterwerk Mann & Hummel GmbHInventors: Herbert Pietrowski, Werner Wagner, Stephan Wild
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Patent number: 6418900Abstract: A air induction system actuates two variable mechanisms by the resonant supercharging and a volume variable mechanism of the air induction system by a common drive means in order to reduce the manufacturing cost and to improve the output performance in the broader range of the engine speed. The air induction system includes a plurality of independent air intake passages for supplying the induction air to each engine cylinder which are sorted into two air intake passage groups, an air expanding chamber being in communication with the air intake passage groups, a first switching valve for controlling the communication between the air expanding chamber, two branch passages for supplying the induction air into the air expanding chambers, a volumetric chamber, and a second switching valve for controlling the communication between the volumetric chamber and the branch passages, an actuator for driving the first and second switching valves.Type: GrantFiled: March 30, 2001Date of Patent: July 16, 2002Assignee: Aisin Seiki Kabushiki KaishaInventor: Atsushi Itou
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Patent number: 6371069Abstract: An air intake device (10) especially adapted for use with an internal combustion engine, which achieves longer air intake tubes using a very simple geometry and which directly guides aspirated air without sharp deflections. The air intake device comprises a manifold (11), intake tubes (12), and an adjusting unit (13). The manifold (11) and the adjusting unit (13) form air intake channels (14), each leading into an air intake tube. The air intake channels (14) are arranged in a “cloverleaf” about the adjusting unit (13). To achieve an optimum charging of the cylinders of an internal combustion engine in all speed ranges, the adjusting unit (13) is steplessly or continuously adjustable. To establish preferred settings, rotary or sliding sleeves with interruptions can be integrated into the air intake device.Type: GrantFiled: October 5, 2000Date of Patent: April 16, 2002Assignee: Filterwerk Mann & Hummel GmbHInventor: Christian Fischer
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Publication number: 20010035146Abstract: An air intake system with resonance as well as ram charging. Ram charging is effected via intake ducts 15 and ram manifold 13, whereas resonance charging is effected by longitudinally adjustable resonance channels 12 and resonance manifold 11. The longitudinal adjustment of the resonance channels 12 is effected by rotatable control elements 22 driven by a motor 27, and the control elements 22 are accommodated in control housings 20 which communicate with the ram manifolds 13 via connecting ducts 34. The use of connecting ducts 34 allows a largely flexible arrangement of the control housings in relation to the intake manifold of the internal combustion engine. As a result the system can be advantageously and optimally adapted to the spatial characteristics within the engine compartment of a motor vehicle.Type: ApplicationFiled: March 22, 2001Publication date: November 1, 2001Inventors: Herbert Pietrowski, Werner Wagner, Stephan Wild
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Patent number: 6295960Abstract: An air intake system for a multi-cylinder combustion engine comprising a left side plenum and a right side plenum is disclosed. Each of the plenums is connected to a plurality of air intake passages for passing air to a plurality of engine cylinders. A communication valve is provided for connecting the left side plenum with the right side plenum. A short balance plenum is connected between the communication valve and at least one of the plenums. A long balance plenum is connected between the communication valve and at least one of the plenums. The communication valve includes a valve body having an axis and a sealing section rotatable through 360 degrees around the valve body axis. The sealing section is disposed for selectively closing air flow from the short balance plenum and the long balance plenum.Type: GrantFiled: January 12, 2000Date of Patent: October 2, 2001Assignee: Ford Global Technologies, Inc.Inventor: Timothy Joseph Millner
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Patent number: 6167865Abstract: An intake system for an internal combustion engine includes an intake manifold having a plenum connected to ambient air by a main throttle and branches leading from the plenum to an intake port of each cylinder. A storage pipe is connected and parallel with each of the intake manifold branches. Gases from an auxiliary supply are drawn by the intake manifold vacuum into the storage pipe and thence into the engine cylinders.Type: GrantFiled: June 10, 1999Date of Patent: January 2, 2001Assignee: Ford Global Technologies, Inc.Inventor: Thomas Tsoi-Hei Ma