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| Number | Title | Issue Date |
| 8033105 | Internal combustion engine having a secondary air pump An internal combustion engine includes an exhaust-gas system with n>1 exhaust-gas flow configurations, wherein n is an integer. The exhaust-gas flow configurations are at least partly separated from one another and each of the exhaust-gas flow configurations include... | 10/11/2011 |
| 7987664 | Secondary air supply system and vehicle A secondary air supply system includes a CPU, a ROM, an air supply pipe, and an air amount adjusting valve. One end of the air supply pipe is connected to an air cleaner box and the other end is connected to an exhaust port. Secondary air in the air cleaner box is s... | 08/02/2011 |
| 7325396 | Exhaust manifold An exhaust manifold includes an open/close valve that switches between either closing or opening the exhaust path of a collection section, and switches the exhaust path of the exhaust gas between passing through or not passing through a bypass path containing an ups... | 02/05/2008 |
| 7281530 | Supercharging system for internal combustion engine A supercharging system for an internal combustion engine includes an exhaust introduction passage for introducing exhaust gas from an internal combustion engine; an exhaust discharge passage for introducing the exhaust gas from the exhaust introduction passage and e... | 10/16/2007 |
| 7243490 | 4-cycle engine for motorcycle A 4-cycle engine for a motorcycle has a secondary-air supplier for supplying secondary air to exhaust ducts. The engine includes a recess, which is depressed toward the engine, on a cylinder-head cover for holding a control valve of the secondary-air supplier. The r... | 07/17/2007 |
| 7197869 | Secondary air supplying structure of internal combustion engine In a secondary air supplying structure of an internal combustion engine, extending portions protruding upward are arranged in the number corresponding to the number of cylinders. Extending portions are each provided with a secondary air distribution path. To a surfa... | 04/03/2007 |
| 7162865 | Method and arrangement for controlling a drive unit having an internal combustion engine The invention relates to a method and an arrangement for controlling a drive unit (1), especially of a vehicle, having a combustion engine (5). The method and arrangement make possible a correct charge control when utilizing a secondary air charger ( | 01/16/2007 |
| 7140177 | Secondary air supply system and abnormality diagnosis method of secondary air supply system In a secondary air supply system, each of two branch portions of a secondary air supply pipe that is divided from a joint portion is provided with an air control valve, and the joint portion is provided with a pressure sensor and an auxiliary air control valve. The ... | 11/28/2006 |
| 7018590 | Reverse flow catalytic muffler A catalytic muffler having a housing with a first chamber and a second chamber fluidly communicating through a catalyst bed interspersed there between. A first baffle assembly in the first chamber extends between the catalyst bed and the housing. An inlet passage ex... | 03/28/2006 |
| 7017339 | Exhaust system catalyst assembly for a dual crankshaft engine An exhaust system for a dual crankshaft engine system having a first engine and a second engine having a common exhaust member open at an end thereof for venting engine exhaust. A first exhaust member is adapted to be coupled to the first engine and coupled to the c... | 03/28/2006 |
| 6990805 | Waste heat recovery device for internal combustion engine A waste heat recovering device for an internal combustion engine includes: an internal combustion engine; and an evaporator into which an exhaust gas of the internal combustion engine is introduced as a high temperature fluid. An exhaust gas inlet of the evaporator ... | 01/31/2006 |
| 6964161 | Induction exhaust system A induction exhaust system, for an internal combustion engine, capable of the multi step processes of 1) scavenging the chamber of exhaust gases and free radicals, 2) breaking the scavenge vacuum wave behind each energetic exhaust pulse, releasing said free radicals... | 11/15/2005 |
| 6962049 | Exhaust manifold for four-cylinder engine In an exhaust manifold of a four-cylinder engine four cylinders of which line up in order of cylinder #1, cylinder #2, cylinder #3 and cylinder #4, temperature rise performance of a manifold catalyst improves by shortening a total length ... | 11/08/2005 |
| 6941751 | Exhaust muffler and muffler system for use with an internal combustion engine An exhaust muffler system for use on a motorcycle or four-wheeled vehicle provides for operation in either of two modes, a regular configuration that provides a high degree of noise reduction, or a racing specification that provides for a freer-flowing exhaust. With... | 09/13/2005 |
| 6918246 | Structure of an exhaust manifold branch collecting portion A structure of an exhaust manifold branch collecting portion includes a double collecting pipe 21 for collecting a plurality of exhaust openings 11A, 17A. The double collecting pipe 21 is comprised of an inner pipe 21-1 and ... | 07/19/2005 |
| 6829891 | Exhaust emission control device and method of controlling exhaust emission A first heat-resistant filter medium is disposed in an exhaust pathway of an internal combustion engine. The first heat-resistant filter medium traps hydrocarbon compounds and carbon-containing particulates included in a flow of exhaust gas in a dispersive manner to... | 12/14/2004 |
| 6772588 | Intake and exhaust control systems for engine The intake and exhaust control systems are operable in varying modes, according to the engine speed, by a single actuator. The intake control system includes an intake valve that allows a variable amount of air into an air cleaner depending on vehicle speed. The exh... | 08/10/2004 |
| 6745561 | Exhaust manifold for vehicle An exhaust manifold for vehicle is disclosed. First and fourth runners among a plurality of runners connected to cylinders of an engine are respectively connected to sides of a gas confluence part. Second and third runners disposed between the first and fourth runne... | 06/08/2004 |
| 6647711 | Device for supplying exhaust gases from an internal combustion engine to a catalytic converter A device for supplying exhaust gases from an internal combustion engine to a catalytic converter, having multiple exhaust gas supply lines including at least one exhaust gas supply line that serves as a heat-conveying line to promote a transfer of exhaust... | 11/18/2003 |
| 6546722 | Engine exhaust assembly for a motorcycle A partitioning member for dividing a connecting pipe into at least two exhaust passageways is provided in the connecting pipe, which is attached to an exhaust side of a silencer. A valve mechanism is operable to vary the passageway area of one of the exha... | 04/15/2003 |
| 6516613 | Exhaust manifold device An exhaust manifold device is provided to allow air to enter an exhaust manifold during normal operation or an engine to prevent exhaust gases being sucked into the cylinders via exhaust valves. Air can be supplied, via valves (18 and 21) to the exhaust m... | 02/11/2003 |
| 6487854 | Exhaust gas system with at least one guide surface and method for applying exhaust gas flows to a honeycomb body An exhaust gas system includes a collector for joining exhaust gas flows from two or more cylinders of a combustion engine. The collector has an outlet cross-section behind which a tubular jacket is disposed. A honeycomb body is disposed in the tubular ja... | 12/03/2002 |
| 6474697 | Exhaust elbow An exhaust elbow (1) is provided with a single exhaust outlet (2) with an outlet mounting flange (3) and at least two exhaust inlets (4, 5, 6) with an inlet mounting flange (7) for fastening on the engine block of a motor vehicle. The exhaust guiding of t... | 11/05/2002 |
| 6354078 | Device and method for reducing emissions in catalytic converter exhaust systems The invention relates to a device and a method for reducing emissions in catalytic converter exhaust systems for a vehicle provided with a combustion engine. The invention comprises a control unit adapted to control the air-fuel being fed to the engine so... | 03/12/2002 |
| 6311483 | Apparatus for feeding secondary air to exhaust gas in engine To provide an apparatus for feeding secondary air to exhaust gas in an engine. The apparatus includes a cylinder head having an exhaust port for discharging exhaust gas from a combustion chamber and a secondary air feed passage for feeding secondary air t... | 11/06/2001 |
| 6155043 | Method for injection duration correction in an internal combustion engine having a secondary-air system By taking into account the deviation between a desired value, determined from a model for a secondary-air mass flow and an actual value of the secondary-air mass flow, detected by an airflow sensor, a correction value is obtained. From the correction valu... | 12/05/2000 |
| 6041593 | Exhaust oxidation The invention relates to a device and a method for reducing emissions in catalytic converter exhaust systems for a vehicle provided with a combustion engine. The invention comprises a control unit adapted to control the air-fuel being fed to the engine so... | 03/28/2000 |
| 5832725 | Device for reducing air polluting emissions from vehicles The invention provides a device which supplies the time resolved secondary air according to the exhaust valve timing of each cylinder at desired time and in desired amount while the engine is cold so as to enhance the mixing and achieves sufficient oxidat... | 11/10/1998 |
| 5768890 | Exhaust air rail manifold A dual wall, air gap exhaust manifold with an integral inlet connecting flange defining an elongated, internal, air injection passageway enclosed by a configurated, convexly bulging cover plate welded over an elongated corner of the flange to form the elo... | 06/23/1998 |
| 5761904 | Air inlet structure for exhaust passage in engine An internal combustion engine has a cylinder assembly including a cylinder block and a cylinder head mounted thereon, the cylinder assembly having an exhaust passage defined in the cylinder block and a water jacket defined therein around the exhaust passa... | 06/09/1998 |
| 5612006 | Catalytic converter and phase-spreading spiral muffler assembly An assembly combining a catalytic converter with a spiral muffler, particularly for small internal combustion engines. In series are an expansion chamber, a venturi for air injection, a catalytic converter, and a phase-spreading spiral muffler. The expans... | 03/18/1997 |
| 5609026 | Engine NOx reduction A method and apparatus are provided for reducing pollutants and especially nitrogen oxides, or NOx, in the exhaust gases of an engine. The apparatus includes a device for injecting ammonia into a conduit that extends between cylinder exhaust valves and a ... | 03/11/1997 |
| 5572867 | Exhaust air rail manifold A dual wall, air gap exhaust manifold with an integral inlet connecting flange defining an elongated, internal, air injection passageway enclosed by an L-shaped plate welded over an elongated slot in the flange to form the elongated passageway, the L-shap... | 11/12/1996 |
| 5524434 | Internal combustion engine An internal combustion engine 12 in which liquid fuel is introduced prior to the charge entering the combustion chambers is mounted in a vehicle having an air scoop 34 which acts as a source of ram air pressurised by the movement of the vehicle. The ram a... | 06/11/1996 |
| 5442911 | Exhaust gas aftertreatment equipment for an internal combustion engine Exhaust-gas aftertreatment equipment for an internal combustion engine has a secondary air pump, the delivery pipeline of which discharges into the exhaust system of the internal combustion engine and in which a check valve is disposed. In order to avoid ... | 08/22/1995 |
| 5419125 | Exhaust-gas recombustion system An exhaust-gas recombustion system for recombusting exhaust gases coming out of exhaust ports of an internal combustion engine equipped with a catalytic converter, comprises a plurality of branch pipes of an exhaust manifold connected to the exhaust ports... | 05/30/1995 |
| 5177958 | Secondary air injection valve and mounting system for automotive engine An air injection valve and air discharge manifold for supplying atmospheric air to the exhaust stream of an automotive engine includes an air injection valve for controlling the flow of air, with the valve including a tubular entry section and a unitary t... | 01/12/1993 |
| 4873823 | Air injection pipe assembly and method of making An air injection pipe assembly adapted for delivering atmospheric air to the exhaust manifold of vehicle engine comprises a manifold air tube having an inlet and a plurality of spaced outlets. An air inlet valve having an outlet pipe is snugly projected i... | 10/17/1989 |
| 4727717 | Exhaust gas cleaning system for multi-cylinder internal combustion engines An improved exhaust gas cleaning system for a multi-cylinder internal combustion engine having an exhaust system with exhaust ports opening into a plurality of combustion chambers. A secondary air supplying system is in communication with the exhaust syst... | 03/01/1988 |
| 4630439 | Exhaust gas afterburner An afterburner device for injecting fresh air laterally into the exhaust gas streams of a multiple cylinder internal combustion engine. The afterburner has a planar gasket section for mounting between the engine block and the exhaust manifold. Exhaust gas... | 12/23/1986 |
