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Class 123/568.29 - Vacuum actuator control of EGR valve


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter wherein (a)the means to return the products
No. of patents: 134
Last issue date: 06/21/2011


1        
NumberTitleIssue Date
7963277Exhaust gas recirculation control system
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 reg...
06/21/2011
7353783Exhaust gas recirculation device for engine
An exhaust gas recirculation device for an engine having a cylinder head with a suction port and an exhaust port, provided with a mechanism for recirculating a portion of exhaust gas to the suction side of the cylinder head, comprises a connection hole is opened thr...
04/08/2008
7356403Control apparatus and process for internal combustion engine
A control apparatus for an internal combustion engine with an exhaust recirculation system includes an acceleration request sensing section to sense a driver's acceleration request; and an engine operating condition sensing section to sense a current engine operatio...
04/08/2008
7343742Exhaust turbocharger
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 reci...
03/18/2008
7303441Electrical connector contact
An electrical connector assembly including a housing, electrical contact terminals, a hood and a filter member. The housing is sized and shaped to be plugged into an electrical connector socket of an initiator of a gas generator. A first one of the terminals has a w...
12/04/2007
7278410Hydrocarbon adsorption trap for controlling evaporative emissions from EGR valves
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 exhau...
10/09/2007
7241175Electrical connector contact
An electrical connector assembly including a housing, electrical contact terminals, a hood and a filter member. The housing is sized and shaped to be plugged into an electrical connector socket of an initiator of a gas generator. A first one of the terminals has a w...
07/10/2007
7213586Exhaust gas recirculation valve
Mechanical systems having anti-stick mediums applied thereto are provided. In one aspect, exhaust gas recirculation (EGR) valve systems having anti-stick mediums applied thereto are also provided. The anti-stick medium can be applied to any contacting surface, such ...
05/08/2007
7127893Internal combustion engine comprising a compressor in the induction tract
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...
10/31/2006
7121892Electrical connector contact
An electrical connector assembly including a housing, electrical contact terminals, a hood and a filter member. The housing is sized and shaped to be plugged into an electrical connector socket of an initiator of a gas generator. A first one of the terminals has a w...
10/17/2006
6997170Exhaust gas recirculation (EGR) module having sensor integrated into cover (ESM)
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 t...
02/14/2006
6980903Exhaust gas control using a spark plug ionization signal
This feature of the present invention comprises a method and apparatus to reduce NOx emissions in an internal combustion engine. This feature of the present invention uses a closed loop control of the exhaust gas re-circulation to provide the engine with the either ...
12/27/2005
6978667Intake air amount detecting apparatus for engine and method thereof
Detection signals from an airflow meter, which outputs different detection signals for the forward flow and reverse flow of the intake air of an engine, are converted into intake air amount data of the same sign. An offset amount is subtracted from the intake air am...
12/27/2005
6973785Apparatus and method for controlling EGR in an engine
An engine including a recirculation passage, which connects an exhaust passage to an intake passage, and an EGR valve arranged in the recirculation passage. An electronic control unit (ECU) obtains a target opening degree of the EGR valve in accordance with an opera...
12/13/2005
6958136Process for the treatment of waste streams
The present invention is directed to a process for treating, reducing, and/or stabilizing various wastes or flue gases. In one embodiment, the process is directed to treatment of alkali bearing wastes that include nitrate and/or nitrite-rich wastes. Optionally, the ...
10/25/2005
6904897Bearing porosity control in an exhaust gas recirculation valve
A powdered metal bearing (40) that guides a pintle (42) in an EGR valve (20) is sealed against infiltration of exhaust gases by mechanical processing or by applying a sealant. ...
06/14/2005
6598396Internal combustion engine EGR system utilizing stationary regenerators in a piston pumped boost cooled arrangement
A piston-pumped EGR system for an internal combustion engine includes first and second stationary regenerators. Alternating flow through the first and second stationary regenerators is controlled by a regenerator directional flow control valve in fluid co...
07/29/2003
6502564Exhaust gas recirculation system module
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 downst...
01/07/2003
6491031Vacuum breather assembly
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 contaminan...
12/10/2002
6460523EGR system for an internal combustion engine
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 mounte...
10/08/2002
6415777EGR module having orifice in a pressure sensing port
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 exha...
07/09/2002
6378510Exhaust gas recirculation system for an internal combustion engine having an integrated vacuum regulator and delta pressure sensor
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...
04/30/2002
6347620Control valve unit
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., in order to enable good sliding of a valve shaft to be maintained a...
02/19/2002
6279552Exhaust gas re-circulation valve
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...
08/28/2001
6253749Valve and valve control method
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 relatio...
07/03/2001
6116224Automotive vehicle having a novel exhaust gas recirculation module
In an automotive vehicle powered by an internal combustion engine, an EGR flow path includes an exhaust emission control valve between an exhaust system of the engine and an intake system of the engine. The valve is operated by an actuator having a body m...
09/12/2000
6095123Valve and valve control method
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 relatio...
08/01/2000
6039033Apparatus of exhaust gas recirculation valve for an internal combustion engine
The invention relates to an apparatus of an exhaust gas recirculation valve for an internal combustion engine for preventing the thermal effect on an intake manifold due to high temperature of recirculated exhaust gas. The apparatus of EGR valve is compri...
03/21/2000
5950604Engine, engine manufacturing method and engine heat
A heat blocking member is fixed to a part of an engine in order to protect a signal wire or the like situated nearby from heat generated by the exhaust recirculation device. The exhaust recirculation device comprises an exhaust recirculation passage conne...
09/14/1999
5918582Integrated internal combustion engine control system with high-precision emission controls
An integrated internal combustion engine control system in combination with an automotive emission control system, comprises an exhaust-gas recirculation valve (EGR valve) employed in an EGR system. A target EGR amount is calculated as a function of an in...
07/06/1999
5749563Exhaust gas recirculation system
The invention relates to an exhaust gas recirculation system as may be used in an engine of an automobile or the like. A housing is provided with an exhaust gas recirculation passage, which may be opened or closed by a valve connected to a diaphragm. The ...
05/12/1998
5609143Exhaust gas recirculation valve for an internal combustion engine
An exhaust gas recirculation valve which comprises a stub pipe which protrudes into a pipe and with whose opening a valve element interacts, which valve element is moved by an actuator, the actuator being connected to the stub pipe by means of a connectin...
03/11/1997
5533488Vacuum sustaining valve
A vacuum sustaining valve (VSV) for temporarily sustaining at least some engine intake manifold vacuum to an EGR valve when engine intake manifold vacuum falls below a predetermined value. The VSV has an inlet port, an outlet port, and a flow path between...
07/09/1996
5377650Low emission engines
A small engine emissions control system with a float bowl carburetor minimizing CO emissions by tailoring fuel delivery to engine demand over a broad range of operating speeds and conditions, an exhaust gas recirculation valve to reduce NOx emi...
01/03/1995
5351669Valve device for exhaust gas feedback in an internal combustion engine
The valve device for exhaust gas feedback in an internal combustion engine comprises a controlled valve (1) whose valve plate (1a) cooperates with a valve seat (2) in a valve housing (7b). The exhaust gas inlet of the valve housing is connected via an exh...
10/04/1994
5265578Device for quantitatively regulating the supplying of burned gases into the combustion chamber of an internal combustion engine
A device for feeding burned gases in measured quantities into the combustion chamber of an internal combustion engine. A throttle valve is configured in the suction pipe. The exhaust pipe is coupled to the exhaust pipe by a line comprising a shutoff valve...
11/30/1993
5255659Pressure balanced exhaust gas recirculation valve
An exhaust gas recirculation (EGR) valve has a gas force balancing diaphragm which equalizes the gas pressure forces acting upon the valve's metering element so as to minimize the force required to position the metering element, which is operated by an ex...
10/26/1993
5067470Exhaust-gas recycling device for an internal-combustion engine
In an exhaust-gas recycling device for internal-combustion engines, especially diesel engines, in which the exhaust-gas recycling quantity is controlled as a function of the engine running via an exhaust-gas recycling valve mounted in the exhaust-gas recy...
11/26/1991
5052363EGR control valve having ceramic elements
An EGR valve assembly for use in an EGR valve body having a chamber with an inlet and outlet, comprising: (a) a stemmed reciprocable valve controlling flow into said chamber, the stem of said valve being constituted of an iron-based core material (i.e., 3...
10/01/1991
4953518Exhaust gas recirculation valve
An exhaust gas recirculation (EGR) valve for controlling the amount of exhaust entering the intake manifold of an internal combustion engine. The EGR valve comprises a universal base so that a single base may fit many makes and models of vehicles, a diaph...
09/04/1990
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