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| Number | Title | Issue Date |
| 7434656 | Exhaust device for vehicle engine An exhaust device includes an exhaust pipe connected at its upstream end to a cylinder head of the engine and an exhaust muffler connected to the downstream end of the exhaust pipe for suppressing the generation of noise from a heat insulating cover that covers a pa... | 10/14/2008 |
| 7401463 | Heat shield for internal combustion engine exhaust system A heat shield for an internal combustion engine exhaust system for supporting a first heat shield plate and a second heat shield plate on a U-shaped exhaust pipe extending from an exhaust port of an engine, via a support member such as band members, and heat shield ... | 07/22/2008 |
| 7398643 | Combined EGR cooler and plasma reactor A combined EGR cooler and non-thermal plasma device has first and second fluid passageways which are in heat exchange communication with one another. One or more electrodes are located in the second fluid passageway. The electrodes are connected to a voltage source.... | 07/15/2008 |
| 7314397 | Standby generator An exhaust system for an engine that produces an exhaust gas during operation. The exhaust system includes a manifold in fluid communication with the engine to receive the exhaust gas and a conduit extending from the manifold in a first direction. An outlet manifold... | 01/01/2008 |
| 7287373 | Exhaust pipe collecting structure of multiple cylinder engine and personal watercraft An exhaust pipe collecting structure for a multi-cylinder engine unit having multiple cylinders including a first exhaust pipe group and a second exhaust pipe group, each of which has two exhaust pipes selected from four exhaust pipes respectively connected to the f... | 10/30/2007 |
| 7275366 | High thermal efficiency Selective Catalytic Reduction (SCR) system An emissions control system utilizes otherwise wasted heat to efficiently reduce emissions in a main exhaust flow. Heat stored in exhaust from an auxiliary generator (i.e., auxiliary exhaust) may be used to convert urea to ammonia used by a Selective Catalytic Reduc... | 10/02/2007 |
| 7234302 | Housing for a turbocharger A housing for a turbocharger forms a housing jacket (6, 7) which surrounds a rotor space (15) for receiving a turbine rotor (18). The housing jacket consists of sheet metal at least in part. A connection pipe (4′) provides for communica... | 06/26/2007 |
| 7228684 | Internal combustion engine An internal combustion engine includes a plurality of cylinders (1 through 12) and at least one turbocharger (2) and at least one exhaust manifold (13) which passes exhaust gases from two or more cylinders (5, 6) to the turbocharge... | 06/12/2007 |
| 7171956 | EGR cooler The present invention provides an EGR cooler that is easy to manufacture and can accelerate heat exchange. Round in section tubes are plastically deformed in one plane crossing centerlines thereof such that corrugated exhaust gas flow paths are formed inside the tub... | 02/06/2007 |
| 7146807 | Exhaust manifold heat shield A heat shield for an internal combustion engine used in a boat, or other application where engine compartment heat is unwanted, has a water cooled body positioned around, but spaced apart from, the exterior surfaces of the exhaust manifold of the engine. The concavi... | 12/12/2006 |
| 7131263 | Exhaust gas recirculation cooler contaminant removal method and system Method and apparatus for removing contaminants from internal combustion engine exhaust gas recirculation cooler. The method feeds a portion of such exhaust gasses to an input end of an exhaust gas recirculation cooler with such gases flowing through the cooler to ex... | 11/07/2006 |
| 7096664 | Internal combustion engine An internal combustion engine is provided in which the temperature of an exhaust gas gradually decreases from its upstream side to its downstream side, and the temperature of a working medium of a heat exchanger, which flows in the opposite direction to the exhaust ... | 08/29/2006 |
| 7065963 | Vibration and heat insulating board A vibration and heat insulating board fixed so as to cover at least part of a heat source while forming a gap against the heat source surface, in order to lessen diffusion of heat from the heat source fixed in a vibration source, in which the heat source and the vib... | 06/27/2006 |
| 7065962 | Exhaust gas purifying system An exhaust gas purifying system and a method for purifying exhaust gas of combustion engines. The system includes a hollow casing, a converter chamber disposed within the casing, spray nozzles for spraying a scrubbing liquid into the converter chamber for forming a ... | 06/27/2006 |
| 7065961 | Exhaust system with an integral moisture trap A moisture trap is formed as an integral part of the wall of an exhaust conduit. Tapered surfaces can be provided to direct condensate downwardly and into a reservoir of the moisture trap where the moisture is retained until the temperature of the exhaust system rea... | 06/27/2006 |
| 7055315 | Heat exchangers of multiple cylinder internal combustion engine First heat exchangers (H4, H3, H2) are disposed within an exhaust port (18), within a pre-catalytic device (34), and on the downstream of a main catalytic device (35); the exhaust port (18), the pre-catalytic device (... | 06/06/2006 |
| 7051685 | Cylinder head with integrated exhaust manifold A cylinder head for an internal combustion engine (ICE) includes a lower cooling jacket, an upper cooling jacket and an exhaust manifold disposed therebetween. The exhaust manifold enables exhaust of combustion gas from cylinders of the ICE. The lower cooling jacket... | 05/30/2006 |
| 7013565 | Removable collector for liquid cooled exhaust A removable collector for liquid cooled exhaust includes a retention member, a coolant transfer plate and a collector housing. The retention member fits between at least two exhaust jacket pipes and is attached thereto. Holes are formed through the coolant transfer ... | 03/21/2006 |
| 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 |
| 6990806 | Exhaust header for internal combustion engine The present invention 10 discloses an exhaust header having heat sinks forming an integral part of the header conduit 14. The heat sinks are in the form of a plurality of radially positioned longitudinal fins 20 extending between the distal ends... | 01/31/2006 |
| 6978772 | EGR cooling and condensate regulation system for natural gas fired co-generation unit A recycled exhaust gas cooling and condensate regulation system for a natural gas fired internal combustion engine driven co-generation plant, which allows efficient exhaust recycled gas combustion while maintaining lower head temperatures to reduce thermal NOx... | 12/27/2005 |
| 6966395 | Snowmobile with a turbocharged four-stroke engine A snowmobile is provided that includes a frame, an engine, an endless belt drive system, and an air intake system for the engine. The frame has a forward portion and an aft portion. The engine is mounted to the forward portion and the belt drive system is mounted to... | 11/22/2005 |
| 6962048 | Engine exhaust apparatus An exhaust manifold of an engine exhaust apparatus includes a plurality of exhaust branches and a straight pipe section. The exhaust branches extend toward a confluence portion, from respective upstream ends to be connected with cylinders of an engine. The straight ... | 11/08/2005 |
| 6929520 | Cooling method for a marine propulsion system A method for cooling a marine propulsion system directs a portion of a recirculating stream of cooling water to a first port of an exhaust manifold so that a cooling jacket of the exhaust manifold can be maintained in a filled condition. Water flows upwardly through... | 08/16/2005 |
| 6823668 | Waste heat recovery device of internal combustion engine An internal combustion engine waste heat recovery system is provided in which a second heat exchanger, a fifth heat exchanger, a fourth heat exchanger, a third heat exchanger, and a first heat exchanger are disposed sequentially from the upstream side to the downstr... | 11/30/2004 |
| 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 |
| 6644024 | Exhaust system for a marine engine An exhaust system for a marine engine provides individual exhaust gas conduits that are maintained separately from water conduits until the individual exhaust gas conduits can be combined within a common exhaust gas conduit. This combination of exhaust ga... | 11/11/2003 |
| 6604358 | Exhaust manifold In an exhaust manifold to be mounted on a cylinder head of an internal combustion engine which cylinder head includes a plurality of exhaust passages, the exhaust manifold includes a gas collector housing with a mounting flange, a gas conducting duct arra... | 08/12/2003 |
| 6582263 | Marine exhaust elbow structure with enhanced water drain capability An exhaust elbow for a marine propulsion system is provided with a stainless steel tube within a water outlet opening to assure that a drain opening remains open even when the exhaust elbow is exposed to a corrosive environment. Since cast iron tends to e... | 06/24/2003 |
| 6523343 | Air gap insulated exhaust manifold assembly for an internal combustion engine and a method of making same An air gap insulated exhaust manifold for an internal combustion engine of a motor vehicle that has a catalytic converter. The exhaust manifold includes an inner pipe and an outer pipe with a connecting flange on the cylinder head side of the outer pipe. ... | 02/25/2003 |
| 6471559 | Outboard motor cooling and exhaust system An outboard motor features a v-type internal combustion engine having a generally vertically extending crankshaft. Exhaust gases from combustion chambers are routed through a set of exhaust manifolds positioned within the valley defined by the two banks o... | 10/29/2002 |
| 6454622 | Exhaust system for 4-cycle engine of small watercraft An internal combustion engine, which can be disposed in a water vehicle, includes an exhaust system having features improving the performance, ease of manufacturing, and/or the water preclusive effects thereof. The exhaust system can include an exhaust ma... | 09/24/2002 |
| 6427440 | Built-up airgap-insulated exhaust manifold of a motor vehicle and method for producing it A built-up airgap-insulated exhaust manifold of an exhaust system of a motor vehicle includes at least two exhaust pipes with an inlet flange attached in each case to one end and to be fastened to the cylinder head of an internal combustion engine of a mo... | 08/06/2002 |
| 6397589 | Exhaust pipes and assemblies Manifold pipe assemblies and exhaust manifold assemblies, optionally in combination with internal combustion engines, for receiving hot gases from such heat source, and conveying such hot gases from the heat source toward a lower temperature environment. ... | 06/04/2002 |
| 6363717 | Exhaust gas duct cooled with water The invention concerns an exhaust gas duct with an exhaust gas guide channel (13) which is placed, leaving an air-filled space (18), in a sheath wherein circulates a cooling liquid and enclosing at least partially said exhaust gas guide channel (13). The ... | 04/02/2002 |
| 6360532 | Exhaust gas heat exchange system for an internal combustion engine An exhaust gas heat exchange system for an internal combustion engine (10) includes an intake manifold (12) including an inlet (16) for recirculating exhaust gases and an exhaust manifold (28) having at least one inlet (30) for receiving exhaust gas from ... | 03/26/2002 |
| 6327854 | Fastening an exhaust manifold to an engine cylinder head An apparatus and method of attaching an exhaust manifold to an engine's cylinder head utilizing an oversized hole in the manifold, a stud fastener extending through the oversized hole, a spacer element around the stud fastener, and a nut adapted to be tig... | 12/11/2001 |
| 6263669 | Exhaust manifold of gasoline engine An exhaust manifold of an internal combustion gasoline engine includes first, second, third and fourth runners and mixing pipe, one end of each runner being connected to a cylinder head and another end of each runner being connected to the mixing pipe whe... | 07/24/2001 |
| 6230490 | Exhaust manifold for internal combustion engines An exhaust manifold is constructed of material varying in thickness. Auxiliary cooling, such as from an air flow, to a portion of the exhaust manifold, permits making this portion thinner than a portion shielded from the auxiliary cooling. This lowers the... | 05/15/2001 |
| 6213827 | Watercraft engine exhaust system Several embodiments of personal watercraft employing exhaust systems that incorporate not only a catalyst, but also an exhaust silencing device for silencing the sounds of the exhaust gases. The components are laid out in such a way that there will be min... | 04/10/2001 |
