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| Number | Title | Issue Date |
| 8166957 | Exhaust treatment system for internal combustion engine Systems and methods are provided for operating an engine exhaust system. In one example, a system comprises a first valve, and a second valve coupled to the first valve via a shaft. A first position of the shaft situates the first valve closed and the second valve o... | 05/01/2012 |
| 8146573 | EGR device for engine It is intended to provide an EGR device for an engine in which a cooling structure such as an EGR cooler is not required and which reduces Nox contained in the exhaust gas in the whole operation areas, so as to correspond to recent exhaust gas regulation. An EGR dev... | 04/03/2012 |
| 8047185 | Variable venturi system and method for engine Systems and methods for an engine are described. In one example, a system may include a variable venturi coupled in an intake of the engine; an exhaust gas recirculation system having an exhaust gas recirculation flow path, the exhaust gas recirculation flow path co... | 11/01/2011 |
| 8042528 | Adaptive EGR control for internal combustion engines A system and method for controlling an internal combustion engine having an EGR valve determine a base valve position to deliver a target flow using a stored map and adjust the base position in response to differential pressure across an orifice in the EGR flow to m... | 10/25/2011 |
| 8001952 | Vibration- and pulsation-attenuated electropneumatic converter An electropneumatic converter for connection with an exhaust recirculation valve in a motor vehicle. The electropneumatic converter includes a vacuum port and an atmospheric pressure port configured to connect with a valve chamber using a valve device, wherein a mix... | 08/23/2011 |
| 8001953 | Exhaust gas recirculation system for internal combustion engine and method for controlling the same In an exhaust gas recirculation system for an internal combustion engine, which includes a turbocharger; a high-pressure EGR unit; a low-pressure EGR unit; a high-pressure EGR valve; and a low-pressure EGR valve, first, the opening amount of the high-pressure EGR va... | 08/23/2011 |
| 7992550 | Exhaust gas recirculation valve An inner surface of an exhaust gas passage 22 of an EGR valve 11 is coated with Teflon coating 31 and a surface of a valve rod 25 is coated with a film 32 of chromium plating. ... | 08/09/2011 |
| 7975678 | Exhaust- gas recirculation control responsive to a load signal at an in line injection pump An exhaust gas recirculation control system for internal combustion engines includes an intake pipe (1) for delivering combustion air to the individual combustion chambers, an exhaust pipe (2) for discharging the exhaust gases from the combustion chamb... | 07/12/2011 |
| 7950377 | EGR system and EGR valve with integrated pressure sensor A valve having a valve body with an inlet port and an outlet port and a valve disposed between the inlet port and outlet port. A sensor is operably associated with the valve and the valve body, and measures a characteristic in proximity to the valve. The sensor comm... | 05/31/2011 |
| 7934492 | Method and device for improving a recirculation of exhaust gas in an internal combustion engine 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, suppli... | 05/03/2011 |
| 7913675 | Gaseous fuel engine charge density control system A spark ignited gaseous fuel engine including an exhaust gas recirculation system and method for operating a gaseous fuel engine are provided. The exhaust gas recirculation system has an adjustable flow and is operable to supply exhaust gas to at least one engine cy... | 03/29/2011 |
| 7866306 | Control apparatus of EGR control valve A control apparatus of an EGR control valve has an EGR control valve has an exhaust gas recirculation passage to circulate exhaust gas of an combustion engine from an exhaust gas passage to an intake air passage. A measurement unit measures a flow rate of EGR gas fl... | 01/11/2011 |
| 7770565 | System and method for controlling an exhaust gas recirculation system A system and method are provided for controlling recirculation of exhaust gas to an internal combustion engine having an exhaust gas recirculation (EGR) system comprising an EGR conduit coupled between an exhaust manifold and an intake manifold of the engine. Exhaus... | 08/10/2010 |
| 7717099 | Exhaust gas recirculation device of internal combustion engine, and control method thereof An exhaust gas recirculation device includes a turbocharger (5) having a turbine (5b) on an exhaust pipe (4) and a compressor (5a) on an intake pipe (3), a low-pressure EGR passage (31) connecting the exhaust p... | 05/18/2010 |
| 7536999 | Air-fuel ratio control apparatus An air-fuel ratio control apparatus is basically provided with an exhaust system, a first sensor and a controller. The exhaust system includes an exhaust channel with a main catalytic converter disposed therein, a bypass channel with a bypass catalytic converter dis... | 05/26/2009 |
| 7520273 | Exhaust-gas recirculation device and method for operating an exhaust-gas recirculation device An exhaust-gas recirculation device for an internal combustion engine, in particular for a diesel engine of a passenger car, includes an air-supply line connected to an air inlet of the internal combustion engine and includes an exhaust-gas line connected to an exha... | 04/21/2009 |
| 7472696 | Exhaust gas recirculation system with in-cylinder valve actuation A method for recirculating exhaust gas includes operating an intake valve to open an intake port of a combustion chamber, operating an exhaust valve to open an exhaust port of the combustion chamber, and directing exhaust gas from the exhaust port to an exhaust reci... | 01/06/2009 |
| 7469692 | Exhaust gas recirculation system A power system including an exhaust producing engine, an exhaust system and an exhaust gas recirculation (EGR) system is provided. The EGR system may include an EGR flowpath and an air intake system. The EGR system may also include an EGR valve configured to regulat... | 12/30/2008 |
| 7444220 | Power output apparatus for hybrid vehicle Under a switchover operation of an EGR valve from OFF to ON or from ON to OFF, the control procedure of the invention keeps an engine power demand Pe*, which is to be output from an engine and is set corresponding to a torque demand Tr* to be output to a drive shaft... | 10/28/2008 |
| 7422004 | Internal combustion engine with variable compression ratio In a variable compression ratio internal combustion engine in which the compression ratio is changed by changing the combustion chamber volume, the present invention enables to inhibit irregularities in the air-fuel ratio involved by changing of the combustion chamb... | 09/09/2008 |
| 7421333 | Monitoring system for internal combustion engine A technique is provided which can specify a member in which malfunction really occurs when there exists malfunction in at least one of a plurality of state values representing the state of an internal combustion engine. When an amount of fresh intake air is controll... | 09/02/2008 |
| 7415963 | Method for operating an internal combustion engine The invention relates to a direct-injection internal combustion engine that is operated in a first operating range associated with the low part load, with largely homogeneous combustion of the mixture and subsequent injection. Said internal combustion engine is oper... | 08/26/2008 |
| 7412963 | Internal combustion engine including a gas pressure container assigned to the cylinders, and method for operating the engine In an internal combustion engine having cylinders connected by means of controllable brake valves to a common gas pressure container which is in communication, by way of an outflow line with an outflow valve, with the exhaust strand of the internal combustion engine... | 08/19/2008 |
| 7412965 | Exhaust control system for an internal combustion engine An exhaust control system for an internal combustion engine having a plurality of actuators wherein each actuator controls a predetermined engine parameter. A plurality of sensors are also associated with the engine and each sensor provides an output representative ... | 08/19/2008 |
| 7406959 | Engine control system An engine control system includes an EGR device 10 which connects an exhaust passage Ex and an intake passage I and has an EGR valve; an intake throttle valve 41 placed in the intake passage I; and an engine control unit which is provided with an engin... | 08/05/2008 |
| 7404391 | Method and device for operating an internal combustion engine A method for controlling an internal combustion engine calculates the generated internal torque for each cylinder on the basis of the signal generated by an angle of rotation sensor for detecting the angle of rotation of the crankshaft, so that a rapid and precise r... | 07/29/2008 |
| 7398773 | EGR recovery system and method An EGR recovery system and method includes calculating a transient volume of EGR sufficient to maintain NOx emitted by an engine below a predetermined level during a period of transient operation of said engine, supplying an actual volume of EGR during said period o... | 07/15/2008 |
| 7398774 | Force balanced linear solenoid valves An electronic exhaust gas recirculation valve for an internal combustion engine selectably provides a recirculation path from engine exhaust to engine intake. A main spring biases the valve in a closed position. The main spring acts on a main spring receiving surfac... | 07/15/2008 |
| 7398649 | System and method for influencing the induction gas temperature in the combustion chamber of an internal combustion engine The invention relates to a system and method for use in a homogeneous charge compression ignition (HCCI) combustion engine that is preferably equipped with an exhaust gas recirculation device. This system and method enable an improved adjustment of the temperature l... | 07/15/2008 |
| 7398149 | Control system for internal combustion engine A control system for an internal combustion engine having a compressor wheel and a turbine wheel connected with the compressor wheel and rotationally driven by kinetic energy of exhaust gases from the engine, an exhaust gas flow rate changing device for changing a f... | 07/08/2008 |
| 7398148 | Control device for internal combustion engine The valve timing is changed to increase the internal EGR amount the moment a fuel cut process begins (FIG. 2C). Before a sufficient amount of internal EGR is obtained, control is exercised so that the throttle-opening angle TA is larger than a basic idle-open... | 07/08/2008 |
| 7392797 | EGR failure determination system and control system for internal combustion engine An EGR failure determination system for an internal combustion engine, which is capable of accurately determining failures of both an external EGR device and an internal EGR device, irrespective of whether the EGR amount is large or small, thereby making it possible... | 07/01/2008 |
| 7383118 | Control apparatus for internal combustion engine This control apparatus obtains a relation (trade-off line) between NOx generation amount and PM generation amount with EGR ratio serving as a parameter from an NOx generation amount estimation model which calculates the NOx generation amount on the basis of the oxyg... | 06/03/2008 |
| 7373933 | Control apparatus and control method of vehicular driving apparatus A control apparatus/method curbs the degradation of emission gas, for a vehicular driving apparatus including an engine and a second driving power source that assists the engine in the output of driving power. Torque assist is executed by a hybrid controller through... | 05/20/2008 |
| 7373238 | Control system of internal combustion engine A cylinder air filling amount is divided into a first amount of air and a second amount of air, the first amount of air and the second amount of air are calculated, and the first amount of air and the second amount of air are totaled to calculate a cylinder air fill... | 05/13/2008 |
| 7369934 | Predictive engine combustion management A system, apparatus, and method for predicting an engine operating condition and providing a component in accordance with the prediction. ... | 05/06/2008 |
| 7367188 | System and method for diagnostic of low pressure exhaust gas recirculation system and adapting of measurement devices A system for a diesel engine having an intake manifold and an exhaust manifold, comprises a turbocharger between the intake and exhaust manifolds; a low pressure exhaust gas recirculation system having a first valve coupled thereto for regulating flow; a high pressu... | 05/06/2008 |
| 7360523 | Method and apparatus to control operation of a homogeneous charge compression-ignition engine The invention provides a method for operating a multi-cylinder, spark-ignition, direct-injection, four-stroke internal-combustion engine adapted to operate in a controlled auto-ignition mode selectively operative at stoichiometry and lean of stoichiometry. The metho... | 04/22/2008 |
| 7357125 | Exhaust gas recirculation system A flow control mechanism connected to the intake and exhaust systems of an engine. The mechanism may achieve recirculation of exhaust gases despite varying differential pressures or pulses of pressures. The control mechanism may be connected to a storage device. The... | 04/15/2008 |
| 7358632 | Motor which performs a rotational-to-linear motion conversion A sliding hole is formed so that a screw portion can pass therethrough. Also, a seal member is provided at a portion, through which the screw portion placed in the sliding hole can pass and in which a sliding portion does not slide. ... | 04/15/2008 |
