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| Number | Title | Issue Date |
| 8176902 | Internal combustion engine system The invention relates to an internal combustion engine system, especially in a motor vehicle, comprising an internal combustion engine, a make-up gas installation for supplying make-up gas to the internal combustion engine, an exhaust gas installation for evacuating... | 05/15/2012 |
| 8156925 | Exhaust gas recirculation system for internal combustion engine An exhaust gas recirculation system includes: a turbocharger (8) that includes a compressor (8a) and a turbine (8b); a throttle valve (7), provided in an intake passage (3) upstream of the compressor (8a... | 04/17/2012 |
| 7963274 | Two component low pressure EGR module An engine (10, 100, 200, 34) assembly comprising an engine (36), at least one exhaust gas recirculation valve, (54) at least one throttle valve, and an actuator (12,112,212) operably connected to the EGR valve (56) and the throttle... | 06/21/2011 |
| 7784451 | Apparatus, system, and method for controlling exhaust emission using a pre-filter Various embodiments of an apparatus, system, and method are disclosed for improving the tracking bandwidth of an air handling system of an internal combustion engine. For example, one embodiment of an apparatus includes an intake charge module configured to determin... | 08/31/2010 |
| 7533658 | Coordinated control of throttle and EGR valve An engine control system that includes a throttle and an exhaust gas recirculation (EGR) valve to regulate a mass air flow (MAF) into an engine includes a first module that determines a MAF control command based on a MAF error. A second module determines an EGR valv... | 05/19/2009 |
| 7334564 | Throttle and inlet valves for 8 stroke and 4 stroke engines A ‘Blackburn Cycle’ or 8 stroke and 4 stroke cycle change piston engine has a separate fuel/air inlet duct and valve in a cylinder where the throttle means admits a small volume, namely less than 10% of the cylinder capacity, needed for a low idling speed. A sep... | 02/26/2008 |
| 7263983 | Exhaust gas recirculation device An electric motor is placed on an upstream side of an exhaust gas recirculation passage of a housing in a direction that is parallel to an intake air flow direction. A first heat release part on a motor housing part of the housing is placed on an upstream side of an... | 09/04/2007 |
| 7258104 | Method and apparatus for controlling operation of dual mode HCCI engines An intake and exhaust system for a dual mode HCCI engine, which provides superior intake temperature control and homogeneity for engine operation in SI and HCCI modes, as well as during transition between SI and HCCI modes and vice-versa. The system includes adjuste... | 08/21/2007 |
| 7252077 | Sequential control valve A system for controlling the mixture of an air flow and an exhaust gas flow utilizing two valves, the first valve at least partially positioned in an air intake conduit and regulating the flow of fluid through the air conduit, and the second valve positioned in an e... | 08/07/2007 |
| 7237531 | Throttle and recirculation valves having a common planetary drive A valve arrangement for a power source is disclosed. The valve arrangement has a first valve element and a second valve element. The valve arrangement also has an actuator configured to drive the first and second valve elements. The valve arrangement further has a p... | 07/03/2007 |
| 7207188 | Heat pump system A heat pump system (10) including a heat generator (15), a heat engine (26) supplied with heat engine working fluid (18) by the heat generator (15) having a heat engine cylinder chamber (34), a heat engine piston (32)... | 04/24/2007 |
| 7185641 | Control apparatus of internal combustion engine Both evaporated fuel purge and EGR are performed by supplying both an evaporated fuel and an exhaust gas at a position downstream from a throttle valve, of an intake pipe. A controller for controlling a purge flow rate and an EGR flow rate controls an opening degree... | 03/06/2007 |
| 7178326 | Exhaust gas purifying apparatus An ECU controls an opening degree of an EGR gas switch valve based on a temperature of intake air and a load state of an engine in such a manner that a temperature of exhaust gas becomes a suitable temperature, which is suitable for regeneration of a particulate fil... | 02/20/2007 |
| 7177754 | Exhaust gas recirculation apparatus In an electronic control unit 31, a duty conversion map 41 from which a driving duty in energizing and driving an electromagnetic coil, not shown, of an electromagnetic vacuum adjustment valve 12 on the basis of a variable equivalent to target q... | 02/13/2007 |
| 7140392 | Valve device The invention relates to a valve device comprising a valve housing (2) with a first and a second flow channel (3a, 3b) and a first and second damper shaft (8a, 8b) that is rotatable relative to the valve... | 11/28/2006 |
| 7069919 | Method and apparatus for controlling the ratio of ambient air to recirculated gases in an internal combustion engine A method and apparatus for controlling the ratio of ambient air to recirculated gases in an internal combustion engine, wherein an gas injector includes a intake air conduit defining a ambient air flow path, an actuator connected to the intake air conduit, a recircu... | 07/04/2006 |
| 7059114 | Hydrogen fueled spark ignition engine A hydrogen fueled reciprocating spark ignition engine includes a fuel system for providing gaseous hydrogen to the cylinders of the engine and a lean NOx trap coupled to the engine for treating the engine's exhaust. A controller determines when to purge the lean NOx... | 06/13/2006 |
| 7017560 | Method and device for an EGR-system and a valve as well as a regulation method and device The invention is related to a method and a device for recirculation of a part of exhaust gases from an exhaust pipe (6, 9) of a diesel engine (1) to the inlet of the engine, the exhaust gases being diverted from the exhaust pipe (6, 9) and direc... | 03/28/2006 |
| 6973785 | Apparatus 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 |
| 6948309 | Method of operating an internal combustion engine The invention relates to a method of operating an internal combustion engine having at least one mode of operation in which combustion substantially relies on autoignition of a compression ignitable homogeneous fuel/air mixture, more specifically of a gasoline/air m... | 09/27/2005 |
| 6944530 | System and method for air flow and EGR flow estimation An exhaust gas recirculation system directs exhaust gasses from an exhaust manifold to an intake manifold of an internal combustion engine. The exhaust gasses travel from the exhaust manifold, first passing through a flow control valve and then through a measuring o... | 09/13/2005 |
| 6925992 | Method and device for an EGR-system and a valve as well as a regulation method and device The invention is related to a method and a device for recirculation of a part of exhaust gases from an exhaust pipe (6, 9) of a diesel engine (1) to the inlet of the engine, the exhaust gases being diverted from the exhaust pipe (6, 9) and direc... | 08/09/2005 |
| 6910470 | Method for operating an internal combustion engine especially of a motor vehicle A method for operating an internal combustion engine (1), especially of a motor vehicle, is described. Air and fuel are supplied to a combustion chamber (4) of the internal combustion engine (1) and exhaust gas is recirculated to the combustion ... | 06/28/2005 |
| 6779337 | Hydrogen fueled spark ignition engine A hydrogen fueled reciprocating spark ignition engine includes a fuel system for providing gaseous hydrogen to the cylinders of the engine and a lean NOx trap coupled to the engine for treating the engine's exhaust. An EGR system provides recirculated exhaust gas to... | 08/24/2004 |
| 6748935 | Integrated intake manifold assembly for an internal combustion engine An integrated intake manifold assembly including a poppet valve disposed at the air inlet to the manifold to regulate air flow into the manifold; a poppet valve disposed on the manifold to regulate exhaust gas flow into the air intake system; and a bi-directional ca... | 06/15/2004 |
| 6732723 | Method and system for controlling EGR rate in diesel engines A method and system for controlling EGR rats of an internal combustion engine includes measuring a mass airflow passing to the intake throttle and a desired mass airflow. An error signal is produced representative of a difference between the measured mass airflow an... | 05/11/2004 |
| 6725832 | EGR control apparatus for internal combustion engine Adequate controllability is ensured when feedback control is provided to both the EGR valve and the intake throttle valve, and switching shock is prevented when control is switched from one to the other. The present apparatus comprises an EGR valve, an intake thrott... | 04/27/2004 |
| 6712053 | Control system for internal combustion engine An O2 amount in the intake air is determined based on a fresh air and an EGR gas. A consumed O2 amount is determined with a command injection amount Qr. Then, the consumed O2 amount is subtracted from the O2 amount in the ... | 03/30/2004 |
| 6708677 | Finger follower for a cam-actuated poppet valve in an engine intake manifold assembly An integrated intake manifold assembly including a first poppet valve assembly disposed at the air inlet to the manifold to regulate air flow into the manifold; a second poppet valve assembly disposed on the manifold to regulate exhaust gas flow into the air intake ... | 03/23/2004 |
| 6701245 | Method for the functional diagnosis of an exhaust recycling system on an internal combustion engine The invention relates to the diagnosis of an exhaust gas recycling valve, whereby, on switching off the internal combustion engine, the throttle valve and the exhaust recycling valve are closed and a check is made of whether a compression is detectable in... | 03/02/2004 |
| 6640542 | Bypass venturi assembly with single shaft actuator for an exhaust gas recirculation system An internal combustion engine, particularly suitable for use in a work machine, is provided with a combustion air supply and an exhaust manifold. A bypass venturi assembly includes a housing having an outlet, a combustion air inlet and an exhaust gas inle... | 11/04/2003 |
| 6609058 | System and method for air flow and EGR flow estimation An exhaust gas recirculation systems directs exhaust gasses from an exhaust manifold to an intake manifold of an internal combustion engine. The exhaust gasses travel from the exhaust manifold, first passing through a flow control valve and then through a... | 08/19/2003 |
| 6574956 | Apparatus and method for interrupting regeneration of a particulate filter in a diesel engine The invention relates to a method for interrupting the regeneration of a particulate filter in the exhaust gas system of a diesel engine to protect the filter against destructive overheating. In this case, an electronic control unit calculates a desired m... | 06/10/2003 |
| 6434474 | Upstream gauge sensor, downstream absolute pressure sensor system A method for estimating pressure surround an engine uses a gauge pressure sensor upstream of an orifice and an absolute pressure sensor downstream of the orifice. In particular, atmospheric pressure can be determined when flow through the orifice is below... | 08/13/2002 |
| 6109025 | Compression ignition type engine A compression ignition type engine, wherein a first combustion where the amount of the recirculated exhaust gas supplied to the combustion chamber is larger than the amount of recirculated exhaust gas where the amount of production of soot peaks and almos... | 08/29/2000 |
| 6105559 | Charge proportioning valve assembly An internal combustion engine includes a valve body having an intake air port and an EGR port. The engine also has an intake passage for transporting an intake air/EGR mixture from the valve body to an engine combustion chamber and an exhaust passage to e... | 08/22/2000 |
| 6085712 | Stratified charge engine An internal combustion engine is described comprising a cylinder having an intake port [14], and two manifolds [24, 34] having branches [22, 32] that are configured to supply two gas streams to the intake port [14] of each cylinder. The two streams enter ... | 07/11/2000 |
| 6039034 | Exhaust gas recirculation valve An exhaust gas recirculation valve (10) for installation between an air intake and an exhaust of an engine comprising a housing (12) having a first bore (14) for connection with the air intake and a second bore (16) for receiving exhaust gas from the exha... | 03/21/2000 |
| 6014959 | Engine with EGR management system A spark ignition internal combustion engine is provided including an intake manifold. A main throttle regulates the intake of ambient air into the intake manifold. An EGR pipe is connected between a point in the intake manifold downstream of the main thro... | 01/18/2000 |
| 5265578 | Device 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 |
