Vacuum Actuator Control Of Egr Valve Patents (Class 123/568.29)
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Patent number: 11499511Abstract: The invention relates to a method for controlling an internal combustion engine system (2), wherein the internal combustion engine system (2) is provided with an air intake duct (3), an exhaust gas duct (4) and an exhaust gas recirculation (EGR) system (5), wherein the EGR system (5) comprises an EGR conduit (6) that fluidly connects the exhaust duct (4) and the intake duct (3), and wherein a gas feeding device (7) is arranged in the EGR conduit (6), said gas feeding device (7) being configured to feed exhaust gas from the exhaust duct (4) to the intake duct (3) during operation of the engine system (2). The method is characterized in that it comprises the step of: detecting a risk of freezing of condensed water in the EGR conduit (6), and, in case such a risk is detected and in case the gas feeding device (7) is not in operation, operating the gas feeding device (7).Type: GrantFiled: August 23, 2018Date of Patent: November 15, 2022Assignee: VOLVO TRUCK CORPORATIONInventors: Fredrik Rahm, Johan Carlén Andersson
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Patent number: 11371531Abstract: Compressor for charging a combustion engine, comprising a compressor housing (1) with a volute (2), a compressor wheel (3) being arranged in the compressor housing (1), the compressor wheel (3) turning about an axis (A) and transporting gas into the volute (2), and an inlet channel (4), at least an end portion of the inlet channel (4) being oriented in the direction of the axis (A) in order to direct gas towards the compressor wheel in the axial direction, wherein an exhaust gas channel (5) terminates into the inlet channel (4) upstream of the compressor wheel (3), and wherein the exhaust gas channel (5) can be shut off by means of a valve (6), wherein a housing (8) of a driving device (7) of the valve (6) is integrally formed with the compressor housing (1).Type: GrantFiled: March 13, 2020Date of Patent: June 28, 2022Assignee: BorgWarner Inc.Inventors: Steffen Meyer-Salfeld, Rolf Sauerstein, Iago Gonzalez
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Patent number: 11028792Abstract: Systems, apparatus, and methods are disclosed that include a divided exhaust engine with at least one primary EGR cylinder and a plurality of non-primary EGR cylinders. The systems, apparatus and methods control the amount of recirculated exhaust gas in a charge flow in response to EGR fraction deviation conditions.Type: GrantFiled: January 7, 2019Date of Patent: June 8, 2021Assignee: Cummins Inc.Inventors: Carlos Alcides Lana, David J. Stroh, Samuel C. Geckler, Marten H. Dane, Anthony Kyle Perfetto, Karthik Kappaganthu, Govindarajan Kothandaraman
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Patent number: 10934957Abstract: The present invention refers to a method for determining an amount of a substance in exhaust gas of an internal combustion engine, the method comprises the steps of: determining, for an effective condition of the engine, at least one operating parameter; determining, for a reference condition of the engine, a reference amount of the substance present in exhaust gas of the engine in the reference condition when being operated based on the determined operating parameter; determining an intake manifold temperature difference between the effective condition and the reference condition of the engine; and determining an effective amount of the substance in the exhaust gas of the engine in the effective condition in dependence on the determined reference amount of the substance and the determined intake manifold temperature difference.Type: GrantFiled: December 19, 2019Date of Patent: March 2, 2021Assignee: Perkins Engines Company LimitedInventor: Jian Li
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Patent number: 10738864Abstract: A linear drive apparatus including: a housing. Located inside the housing are an electric motor, a transmission gear, which meshes with an output gear on an output shaft of the electric motor, a gear shaft, and a linear motion assembly. The transmission gear is mounted on the gear shaft, the linear motion assembly is mounted to cooperate with the transmission gear, and converts rotational motion of the transmission gear to linear motion. An axis of the linear motion assembly is arranged in the same plane as an axis of the electric motor output shaft and an axis of the gear shaft. The linear drive apparatus has the advantages of a compact structure, small volume, light weight, and good heat dissipation.Type: GrantFiled: March 21, 2017Date of Patent: August 11, 2020Assignee: Continental Automotive GmbHInventors: Runqiu Tang, Xiaolin Du, Xiangguang Cao, Chunyan Tang, Qiang Li
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Patent number: 10731576Abstract: An internal combustion engine includes a throttle valve, an EGR passage, an EGR valve, a valve mechanism that adjusts opening and closing characteristics of an intake valve or an exhaust valve of the internal combustion engine, and a controller that controls the throttle valve, the EGR valve and the valve mechanism, based on request torque that is requested of the internal combustion engine. The controller is configured to execute evacuation traveling control that operates the throttle valve to fully open, calculates a target intake air flow amount for achieving the request torque based on an effective opening area of the EGR valve which is stuck, and operates the valve mechanism in accordance with the target intake air flow amount, in at least one time period while the request torque is reducing when the EGR valve is stuck in an open state.Type: GrantFiled: October 3, 2017Date of Patent: August 4, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Satoshi Sugiyama
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Patent number: 10634258Abstract: An intake manifold with an internal check valve that operates in coordination with a Positive Crankcase Valve has a check valve retainer that is mounted within the manifold and contacts the check valve to maintains the check valve in position and avoid dislodgement.Type: GrantFiled: June 20, 2019Date of Patent: April 28, 2020Assignee: RB Distribution, Inc.Inventors: Patrick Thomas Kennedy, Michael Paul Capko, Timothy Lee Collins
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Patent number: 10519773Abstract: Provided herein is a rotor attachment assembly for an aircraft. A rotor attachment assembly includes a connecting assembly associated with the aircraft and a rotor assembly configured to be connected to the connecting assembly. The rotor assembly includes a plurality of fins configured to fit a respective plurality of cut-outs of the connecting assembly, a hollow section configured to accommodate at least a part of a pin of the connecting assembly so as to center the rotor assembly relative to the connecting assembly, and a spring configured to expand to allow the fins to pass and to close to retain the fins when the rotor assembly is connected to the connecting assembly.Type: GrantFiled: March 1, 2018Date of Patent: December 31, 2019Assignee: FLIR Unmanned Aerial Systems ASInventors: Petter Muren, Pal Hagh Sandberg, Christian Moengen, Jo Eyvin Bjaarstad
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Patent number: 10247118Abstract: A control apparatus for an internal combustion engine that includes an EGR channel and an EGR valve is configured, when the internal combustion engine is in a warm-up process and when an intake air flow rate that is a flow rate of air supplied to the internal combustion engine main body is less than or equal to a predetermined value, to open the EGR valve with a minute opening degree that is an opening degree smaller than a minimum opening degree of the EGR valve with which a condensed water in an exhaust-channel-side portion that is a portion of the EGR channel on a side closer to the exhaust channel relative to the EGR valve flows into an intake-channel-side portion that is a portion of the EGR channel on a side closer to the intake channel relative to the EGR valve.Type: GrantFiled: February 7, 2017Date of Patent: April 2, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hiroyuki Haga
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Patent number: 9828894Abstract: Disclosed is an exhaust manifold that comprises an exhaust gas passage, an EGR passage, and a coolant passage. The exhaust gas passage extends fluidly between an exhaust gas inlet and an exhaust gas outlet positioned downstream thereof. The EGR passage extends fluidly between an EGR inlet and an EGR outlet positioned downstream thereof. The EGR inlet is defined by the exhaust gas passage. A coolant passage extends fluidly between a coolant inlet and a coolant outlet positioned downstream thereof. The coolant passage overlaps the exhaust gas passage and the EGR passage. The exhaust gas passage is configured to cool the exhaust gas, and EGR passage is configured to cool the recirculated portion of the exhaust gas.Type: GrantFiled: November 13, 2013Date of Patent: November 28, 2017Assignee: DEERE & COMPANYInventor: Adam J Paull
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Patent number: 9828952Abstract: A control valve is disposed on a vapor control system which controls vapor. A case and caps hold a diaphragm. The case and the diaphragm define a primary chamber. The caps and the diaphragm define a secondary chamber. The secondary chamber communicates to an inlet passage via a through hole formed as an orifice. An inlet pipe is arranged so that the inlet passage and the secondary chamber are adjacent each other by being separated by an outer wall. By employing this arrangement, the through hole can be formed without increasing a vapor permeable surface area. Since the through hole is not formed on the diaphragm, a stable open-and-close characteristic can be provided. The through hole may be formed by using a molding die for forming the inlet passage. Thereby, it is possible to improve productivity.Type: GrantFiled: September 4, 2014Date of Patent: November 28, 2017Assignee: KYOSAN DENKI CO., LTD.Inventor: Tetsuya Takahashi
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Patent number: 9803593Abstract: A flow rate control valve includes: a valve casing forming a fluid passage; a valve seat provided in the fluid passage; a stepping motor; a valve guide stroke-controlled by the stepping motor via a feed screw mechanism; a valve body configured to be placed and separated on and from the valve seat; a connector connecting the valve guide and the valve body so as to allow them to move in an axial direction within a predetermined range; a valve spring biasing the valve body in a closing direction. When closing the valve body, ECU controls the motor to a closed state such that a connection between the valve guide and the valve body by the connector is released, with the valve body being seated on the valve seat, and the valve guide being situated at a non-contact position spaced away from the valve seat.Type: GrantFiled: June 26, 2014Date of Patent: October 31, 2017Assignee: AISAN KOGYO KABUSHIKI KAISHAInventors: Junya Kimoto, Shinji Murai
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Patent number: 9206752Abstract: The air handling system of a turbocharged opposed-piston engine with uniflow scavenging includes an a supercharger operable to provide boost during startup and to drive EGR during normal engine operation.Type: GrantFiled: January 31, 2014Date of Patent: December 8, 2015Assignee: ACHATES POWER, INC.Inventor: Suramya D. Naik
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Patent number: 8943801Abstract: A valve (10) may be used with an internal combustion engine exhaust breathing system (12) and may include a body (60), a partition (62), and a plate (66). The body (60) may define a first port (70) that has a first interior surface (76), and may also define a second port (82) that has a second interior surface (84). The partition (62) may be located within the body (60), may at least partially separate the first port (70) and the second port (82) from each other, and may define an opening (104). The plate (66) may be dimensioned to seat and seal against the opening (104) and against the first and second interior surfaces (76, 84). The plate (66) may rotate, depending on predetermined factors, between a first position and a second position.Type: GrantFiled: March 12, 2009Date of Patent: February 3, 2015Assignee: BorgWarner Inc.Inventor: Todd R. Peterson
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Publication number: 20150013652Abstract: A vacuum prioritization system for a vehicle is disclosed. In one example, use and availability of vacuum provided via vacuum sources is allocated to higher priority vacuum operated actuators when a pressure in the vacuum system exceeds a threshold pressure. The lower priority vacuum operated actuators have access to vacuum supplied via the vacuum sources when pressure in the vacuum system is less than a threshold pressure. The approach may allow higher priority actuators to operate for an extended amount of time.Type: ApplicationFiled: September 22, 2014Publication date: January 15, 2015Inventor: Ross Dykstra Pursifull
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Publication number: 20140318514Abstract: Systems and methods for providing vacuum to one or more of a crankcase ventilation system, an emission control system, and an exhaust gas recirculation (EGR) system included in a turbocharged engine system are provided. In one example, approach, a method comprises drawing vacuum from a vacuum source located in an intake of the engine downstream of a pre-compressor throttle and upstream of an intake throttle, and applying the drawn vacuum to a discharge outlet of a uni-directional crankcase ventilation system, where an inlet of the crankcase ventilation system is coupled to the intake of the engine upstream of the pre-compressor throttle.Type: ApplicationFiled: April 25, 2013Publication date: October 30, 2014Applicant: Ford Global Technologies, LLCInventor: Ross Dykstra Pursifull
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Publication number: 20140246001Abstract: The invention relates to a circulation valve for the exhaust gases of an engine comprising a body (30) defining a main conduit (31), intended to be connected to an exhaust line of the engine, and an auxiliary conduit (32) opening into said main conduit (31) in order to recirculate the exhaust gases, said valve further comprising a shutter (1) movable between two positions of closure, which prevents communication between the two conduits (31, 32), and full recirculation, which allows said conduits (31, 32) to be brought into communication, valve in which said body (30) and said shutter (1) are mutually configured such that, in said full recirculation position, said shutter (1) blocks said main conduit (31) by 65 to 95%.Type: ApplicationFiled: October 11, 2012Publication date: September 4, 2014Applicant: VALEO SYSTEMES DE CONTROLE MOTEURInventors: Grégory Hodebourg, Sébastien Adenot
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Patent number: 8561416Abstract: A method for managing thermal energy in an internal combustion engine including an exhaust gas recirculation system and an engine cooling system includes recirculating a portion of an exhaust gas through the exhaust gas recirculation system that is in thermal communication with a first side of a thermoelectric device, flowing an engine coolant into thermal communication with a second side of a thermoelectric device, and controlling electric current between an electrical energy storage device and the thermoelectric device to transfer thermal energy between the recirculated exhaust gas and the engine coolant.Type: GrantFiled: March 29, 2010Date of Patent: October 22, 2013Assignee: GM Global Technology Operations LLCInventors: Xin He, Alexander Knafl, Russell P. Durrett
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Publication number: 20130269664Abstract: An exhaust gas recirculation (EGR) valve with improved space efficiency, improved stability, and maximized driving force and a method of manufacturing cam thereof. The EGR includes a housing, a drive motor, and a power transmission unit connected to the drive motor to transmit power generated by the drive motor. The power transmission unit includes gears, a rotary shaft connected to one of the gears constituting the power transmission unit, an actuating cam connected to the rotary shaft to move in a rotational direction thereof, the actuating cam having a guide groove formed therein, and a valve member operatively connected to the actuating cam to selectively open and close an exhaust gas flow channel in the housing according to operation of the actuating cam. One end of the valve member contacts a top of the guide groove such that the valve member is operated simultaneously when the actuating cam rotates.Type: ApplicationFiled: April 11, 2013Publication date: October 17, 2013Applicant: KAMTEC INC.Inventors: Chan Woo PARK, Ki Ho JUNG, Jung Suek KOO
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Patent number: 8302392Abstract: An exhaust control device for a vehicle engine includes an exhaust control valve capable of changing the opening area of an exhaust passage. The exhaust control valve is disposed in exhaust passage forming means so as to be able to change a bent-internal side partial passage sectional area of the passage sectional area of an exhaust passage. Specifically the exhaust control valve is disposed at a bent portion of the exhaust passage that is closest to an exhaust valve port. With this configuration, the exhaust flow rate can be controlled satisfactorily.Type: GrantFiled: September 15, 2008Date of Patent: November 6, 2012Assignee: Honda Motor Co., Ltd.Inventors: Yukihiro Tsubakino, Shinsuke Yasui, Isao Azumagakito
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Patent number: 7963277Abstract: An exhaust gas recirculation system has an EGR valve disposed in an EGR duct connecting an engine intake and exhaust. A diaphragm of said EGR valve is actuated via vacuum from the engine intake, the application of the vacuum is controlled via an electronic valve regulator (EVR). The EVR is provided a fixed signal to cause it to be fully open when it is determined that the engine is about to encounter a condition in which there is insufficient vacuum to open the EGR valve. The EVR is provided a variable signal during other operating conditions in which there is sufficient vacuum to open the EGR valve.Type: GrantFiled: June 26, 2008Date of Patent: June 21, 2011Assignee: Ford Global Technologies, LLCInventors: Freeman Carter Gates, Gitanjli McRoy, Sassan Farahmand, Joseph Michael Grandas
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Patent number: 7958874Abstract: An exhaust gas recirculation apparatus includes a housing connected with an EGR cooler via a mount face. The housing has a valve chamber accommodating a selector valve. The housing has a partition extending from the mount face close to the valve chamber to divide first and second exhaust ports opened in the mount face. A first passage leads exhaust gas into the EGR cooler through the valve chamber. A second passage recirculates exhaust gas to the intake passage through the EGR cooler and the valve chamber. A bypass passage leads exhaust gas from the engine through the valve chamber to bypass the EGR cooler. A rotation axis of the selector valve is perpendicular to an axis of the mount face, and offset away from the partition.Type: GrantFiled: January 28, 2008Date of Patent: June 14, 2011Assignee: Denso CorporationInventors: Takashi Kobayashi, Osamu Shimane
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Patent number: 7814893Abstract: A system module is provided for recirculating exhaust gases from an internal combustion engine to an intake manifold of the internal combustion engine. The module includes a body (12) including a passageway (41) between an exhaust gas inlet (32) and an exhaust gas outlet (34). An orifice (36) constricts the flow of exhaust gases proximate the exhaust gas outlet. A differential pressure sensor (38) is constructed and arranged to sense differential pressure across the orifice. A manifold absolute pressure sensor (42) is constructed and arranged to sense vacuum pressure associated with the exhaust gas outlet. A first hose (40) is coupled with the body and provides the differential pressure sensor with vacuum pressure on a first side of the orifice. A second hose (44) is coupled with the body and provides the manifold pressure sensor with vacuum pressure. The first and second hoses are integral with the system module.Type: GrantFiled: November 13, 2007Date of Patent: October 19, 2010Assignee: Continental Automotive Canada, Inc.Inventors: Robert D. Jefford, Natalie Gagner, Ted Daneliuk, Geoff Miller
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Publication number: 20100175671Abstract: A method and apparatus for improving recirculation of exhaust gas in an internal combustion engine having an exhaust-gas turbocharger, in particular in a diesel engine, determines operation parameters of the engine in order to determine exhaust gas pressures, supplies compressed air in a controlled manner based on the exhaust gas pressures in order to generate a vacuum in a supply section of a gas supply device, thereby inducting a partial quantity of exhaust gas from the engine into the supply section using the vacuum, and recirculates the partial quantity of exhaust gas into the engine via an induction line connected to the gas supply device.Type: ApplicationFiled: March 23, 2010Publication date: July 15, 2010Applicant: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventor: Eduard Gerum
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Publication number: 20090320811Abstract: An exhaust gas recirculation system has an EGR valve disposed in an EGR duct connecting an engine intake and exhaust. A diaphragm of said EGR valve is actuated via vacuum from the engine intake, the application of the vacuum is controlled via an electronic valve regulator (EVR). The EVR is provided a fixed signal to cause it to be fully open when it is determined that the engine is about to encounter a condition in which there is insufficient vacuum to open the EGR valve. The EVR is provided a variable signal during other operating conditions in which there is sufficient vacuum to open the EGR valve.Type: ApplicationFiled: June 26, 2008Publication date: December 31, 2009Inventors: Freeman Carter Gates, Gitanjli McRoy, Sassan Farahmand, Joseph Michael Grandas
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Publication number: 20090301447Abstract: A system and method for controlling a multiple cylinder internal combustion engine include a mechanically operated exhaust gas recirculation valve having a spring-biased pintle with a surface area sized to generate a spring-opposing force to open a valve chamber entrance when an exhaust pressure differential exceeds a first threshold to allow exhaust gas to flow toward an intake and to close a valve chamber exit spaced from the chamber entrance to block exhaust gas flowing to the intake when the pressure differential exceeds a second threshold. The valve operates to limit or block external EGR flow at low load such as during starting and idle as well as at wide-open throttle while metering EGR flow for mid-to-high loads.Type: ApplicationFiled: June 6, 2008Publication date: December 10, 2009Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Freeman Carter Gates, Sassan Farahmand
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Publication number: 20090139502Abstract: An exhaust gas recirculation system having at least one cooler with a housing and at least one valve with a pivotably actuated valve member on an inlet side is characterized in that an actuator for the valve is mounted to the housing of the cooler, which is connected to the valve via at least one lever and at least one connection member such as a coupling rod, a ball-and-socket joint being provided between at least one lever and at least one connection member such as a coupling rod.Type: ApplicationFiled: July 29, 2008Publication date: June 4, 2009Inventors: Bernhard Klipfel, Christoph Thiery, Jan Helber
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Patent number: 7478631Abstract: An exhaust gas recirculation valve includes a body including a passageway extending between an inlet and an outlet. The passageway communicates a flow of the exhaust gases. A bearing, disposed in the body, has a bearing passageway. A valve member is located in the passageway between the inlet and outlet and has a portion movably disposed in the bearing passageway such that a clearance path is defined between the portion of the valve member and the bearing. The clearance path is in communication with atmosphere through openings in the body. The valve member is constructed and arranged to regulate the flow of the exhaust gases. Activated carbon is associated with a portion of the body so as to adsorb hydrocarbons associated with the clearance path and thus prevent hydrocarbons from escaping to the atmosphere through the openings in the body.Type: GrantFiled: April 26, 2007Date of Patent: January 20, 2009Assignee: Siemens Canada LimitedInventor: Peter Curt Hueniken
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Patent number: 7343742Abstract: An exhaust turbocharger with a housing, a compressor arranged in a compressor space and an exhaust turbine is arranged in a turbine space, whereby an exhaust line from the turbine outlet is connected to a low-pressure side of the compressor space via an exhaust recirculation line which extends through the housing and is designed largely in a spiral form in the housing. The recirculated exhaust gas flow arrangements improve the dynamics by providing higher turbocharger rotational speeds in the partial load range due to the production of a pre-twist by the exhaust recirculation stream.Type: GrantFiled: August 24, 2005Date of Patent: March 18, 2008Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Rudolf Wimmer, Leopold Eistershofen
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Publication number: 20070256674Abstract: An exhaust gas recirculation valve includes a body including a passageway extending between an inlet and an outlet. The passageway communicates a flow of the exhaust gases. A bearing, disposed in the body, has a bearing passageway. A valve member is located in the passageway between the inlet and outlet and has a portion movably disposed in the bearing passageway such that a clearance path is defined between the portion of the valve member and the bearing. The clearance path is in communication with atmosphere through openings in the body. The valve member is constructed and arranged to regulate the flow of the exhaust gases. Activated carbon is associated with a portion of the body so as to adsorb hydrocarbons associated with the clearance path and thus prevent hydrocarbons from escaping to the atmosphere through the openings in the body.Type: ApplicationFiled: April 26, 2007Publication date: November 8, 2007Applicant: Siemens Canada LimitedInventor: Peter Curt Hueniken
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Patent number: 7278410Abstract: The present invention is directed to the use of an improved hydrocarbon adsorbent coating for the treatment of exhaust emissions from a motor vehicle. More specifically, the hydrocarbon adsorbent of the present invention can be coated to any surface area of an exhaust gas recirculation system to trap hydrocarbon vapors before they can be released to the atmosphere.Type: GrantFiled: November 17, 2005Date of Patent: October 9, 2007Assignee: Engelhard CorporationInventors: Jeffrey Barmont Hoke, Mark Thomas Buelow, John Joseph Kauffman
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Patent number: 7127893Abstract: In an internal combustion engine which includes in the intake section a compressor with an impeller that is mounted rotatably in a compressor intake passage, the compressor includes an additional passage which opens out into the compressor intake passage and through which a mass flow of exhaust gas can be transferred from the exhaust section into the intake section via an exhaust-gas recirculation device, the exhaust gas recirculation line of the exhaust-gas recirculation system of the engine being connected to the additional passage extending directly to the compressor.Type: GrantFiled: March 22, 2005Date of Patent: October 31, 2006Assignee: DaimlerChrysler AGInventors: Wolfram Schmid, Siegfried Sumser
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Patent number: 6997170Abstract: A new and improved EGR valve having a valve body having an inlet port and an outlet port with a valve member moveably supported within the valve body between the inlet and outlet ports. A control cap is connected to the valve body and contains an integrated sensor that is used to provide an engine control module with pressure readings from the valve body and the interior portion of the cap. Additionally the cap also has an integrated zero emissions system that is capable of preventing the release of harmful chemicals into the atmosphere.Type: GrantFiled: June 25, 2004Date of Patent: February 14, 2006Assignee: BorgWarner Inc.Inventors: Aaron Feiner, Mark A. Duda, Scott Hussey, Bennett J. Arndt, Peter G. Weissinger
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Publication number: 20040003803Abstract: A breather assembly for connection to a protected chamber for use in both positive and negative pressure environments, is described. The breather assembly has a central intake chamber that is protected from the ingress of water or contaminants. The breather assembly provides drain paths for any water or contaminants that may get into the inner chamber.Type: ApplicationFiled: December 6, 2002Publication date: January 8, 2004Inventors: Mark A. Duda, Ben Arndt
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Patent number: 6502564Abstract: An exhaust gas recirculation (EGR) system module is provided that integrally includes an electric vacuum regulator (EVR) valve and a differential pressure (DP) sensor. The DP sensor measures a differential exhaust pressure at locations upstream and downstream of an orifice in a gasket sealing the EGR system module to an intake manifold. The upstream measurement location is aligned with and particularly spaced from the orifice.Type: GrantFiled: August 17, 2000Date of Patent: January 7, 2003Assignee: Siemens Canada LimitedInventors: Frederic Gagnon, Peter Hueniken
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Patent number: 6491031Abstract: A baffle assembly for connection to the intake of an exhaust gas recirculation valve. The baffle assembly has a central intake chamber which is protected from the inflow of contaminants. The baffle assembly provides drain paths for any water or contaminants which may get into the inner chamber.Type: GrantFiled: August 24, 2001Date of Patent: December 10, 2002Assignee: BorgWarner Inc.Inventors: Mark A. Duda, Ben Arndt
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Patent number: 6460523Abstract: An exhaust gas recirculation (EGR) system is provided having an electric vacuum regulator (EVR) valve mounted contiguously with a delta pressure feedback exhaust (DPFE) sensor to form an integral EVR/DPFE assembly. In turn, the EVR/DPFE assembly is mounted on a surface of the intake manifold of an internal combustion engine. A single port in the housing of the manifold provides a fluid connection to the EVR/DPFE sensor assembly. This connection provides a vacuum input connection to both the EVR valve and the DPFE sensor. The EVR/DPFE sensor assembly utilizes a single electrical connection to the engine control unit (ECU). The DPFE sensor measures a differential exhaust pressure at locations upstream and downstream of an orifice in a gasket sealing the EGR valve to the intake manifold. The upstream measurement location is in an EGR valve chamber, and the downstream location is in the intake manifold.Type: GrantFiled: January 14, 2000Date of Patent: October 8, 2002Inventor: Frèdèric Gagnon
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Patent number: 6415777Abstract: An internal combustion engine exhaust emission control system has a module for conveying exhaust gas from an engine exhaust system to an engine intake system. Flow is measured by the difference between pressures at opposite sides of an orifice in the exhaust gas flow path. A valve selectively restricts the flow path. Passages communicate pressure reading ports of a pressure sensor to opposite sides of the orifice. One passage comprises a tube having an end portion passing through a through-hole in a side wall of the flow path in alignment with the orifice in the flow path and containing an orifice member that faces the flow path orifice to reduce turbulence in the pressure communicated through it to the sensor.Type: GrantFiled: November 28, 2000Date of Patent: July 9, 2002Assignee: Siemens Automotive Inc.Inventor: Frederic Gagnon
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Publication number: 20020069863Abstract: A baffle assembly for connection to the intake of an exhaust gas recirculation valve. The baffle assembly has a central intake chamber which is protected from the inflow of contaminants. The baffle assembly provides drain paths for any water or contaminants which may get into the inner chamber.Type: ApplicationFiled: August 24, 2001Publication date: June 13, 2002Inventors: Mark A. Duda, Ben Arndt
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Patent number: 6378510Abstract: An exhaust gas recirculation system for an internal combustion engine including a valve body having an exhaust port adapted for fluid communication with a source of exhaust gas, an intake port adapted for fluid communication with the intake manifold of an internal combustion engine, and a valve member movably supported within the body between open and closed positions thereby controlling the flow of exhaust gas from the exhaust port to the intake port. A diaphragm housing is operatively mounted to the valve body and supported thereby. The diaphragm housing defines a vacuum cavity in fluid communication with a source of negative pressure and an atmosphere cavity in fluid communication with a source of second pressure. A diaphragm member is disposed between the vacuum and atmosphere cavities and is operatively connected to the valve member.Type: GrantFiled: June 30, 2000Date of Patent: April 30, 2002Assignee: BorgWarner Inc.Inventors: John C. Green, Pete Brykailo, Richard J. Vaughan, Daniel P. O'Brien, Thomas A. Horn, Bennett J. Arndt
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Patent number: 6347620Abstract: In an EGR valve or an ISC valve used as a control valve assembly for regulating the flow amount of a controlled fluid flowing through an internal combustion engine of an automobile, etc.Type: GrantFiled: November 15, 1999Date of Patent: February 19, 2002Assignee: Mitsubishi Denki Kabushik KaishaInventor: Toshihiko Miyake
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Patent number: 6279552Abstract: An exhaust gas re-circulation valve which allows the accurate control of high temperature and pressure exhaust gas flowing through the engine exhaust gas re-circulation passage of a turbo diesel vehicle or the like. Valve seats 28, 29, valves 31, 32 and a valve shaft are mounted on a valve housing 21 and an adjustable adjusting mechanism 36,51,28b,71 is provided which allows both the first valve 31 and the first valve seat 28 and the second valve 32 and the second valve seat 29 to close in abutment by displacement or deformation. In this way even if there is an irregularity in the process or assembly accuracy of the components of the exhaust gas re-circulation valve, it can be absorbed by the adjustable mechanism 36, 51, 28b, 71. As a result the formation of gaps between the valve and the valve seat as a result of irregularities in the in the process or assembly accuracy of the components of the exhaust gas re-circulation valve can be prevented and valve accuracy can be improved.Type: GrantFiled: October 1, 1999Date of Patent: August 28, 2001Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Hidetoshi Okada, Sotsuo Miyoshi, Toshihiko Miyake, Shinichi Kawasaki
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Patent number: 6253749Abstract: A vacuum actuated valve uses a specially designed spring having a spring rate as a function of valve position. The spring rate function is determined using physical relationships between flow, pressure, and valve s position. The result is that the relationship between the control input to the valve (either a vacuum signal, or an electrical signal to a vacuum source) and the flow through the valve are linearly related through the entire operating region of the valve.Type: GrantFiled: August 1, 2000Date of Patent: July 3, 2001Assignee: Ford Global Technologies, Inc.Inventors: Allan Joseph Kotwicki, John David Russell, George Blaha