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| Number | Title | Issue Date |
| 7325521 | System and method for improved cam retard A system and method to control valve timing and valve lift of an engine is described. The intake valve timing can be retarded while the valve is in a low lift or high lift mode. The method can lower engine friction and reduce fuel consumption, at least under some co... | 02/05/2008 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7140337 | Valve gear mechanism In a valve gear mechanism of an internal combustion engine, there is provided a valve opening and closing a combustion chamber, a spring device which generates a force pressing the valve toward a valve seat, a drive mechanism driving the valve in an opening directio... | 11/28/2006 |
| 7134410 | Detachable connection for coupling a gas exchange valve of an internal combustion engine to an actuator Disclosed is a simple, easy-to-produce, and reliable connection between a shaft of a gas exchange valve and an actuator. This connection is detachable and, as a result, can be connected and disconnected multiple times. It is also possible to dispose the coupling pie... | 11/14/2006 |
| 7100753 | Torque converter clutch apply valve A replacement torque converter clutch (TCC) apply valve for regulating the application of the torque converter clutch within an automatic transmission. The present TCC apply valve includes a valve piston having an expandable seal located at the primary wear location... | 09/05/2006 |
| 7064472 | Electroactive polymer devices for moving fluid The invention describes devices for performing thermodynamic work on a fluid, such as pumps, compressors and fans. The thermodynamic work may be used to provide a driving force for moving the fluid. Work performed on the fluid may be transmitted to other devices, su... | 06/20/2006 |
| 7017538 | Method of producing a powerful and efficient internal combustion four stroke engine using a blower and a single valve cylinder The present invention relates generally to a method for providing an efficient and powerful engine for internal combustion four stroke engines using a single valve per cylinder as the intake and exhaust valve. Outside air emerging from an air filter is forcibly pump... | 03/28/2006 |
| 6928967 | Electromagnetic hydraulic valve, in particular a proportional valve for controlling device for adjusting the rotation angle of a camshaft relative to the crankshaft in an internal combustion engine, and a method for the production thereof An electromagnetic hydraulic valve (1), which including an electromagnet (2) with an armature (3) and of a valve housing (4) with an axial bore (5) and a piston valve (6) located therein is provided. The valve housing (4 | 08/16/2005 |
| 6915768 | Variable operating valve apparatus for an internal combustion engine A variable operating valve apparatus for an internal combustion engine that provides for improved combustion performance without enlarging the size of the cylinder head in the transverse direction. The variable valve mechanism includes a camshaft axially supported b... | 07/12/2005 |
| 6866031 | Direct injection internal combustion engine An internal combustion engine, especially an Otto engine, with intake valves and with a fuel injector, which is arranged and designed so that it injects the fuel directly into a combustion chamber of working cylinders of the internal combustion engine. At least in t... | 03/15/2005 |
| 6837201 | Apparatus and method for lessening the accumulation of high boiling fraction from fuel in intake valves of combustion engines An intake valve for a combustion engine having an oil reservoir and adapted for combusting fuel is disclosed. The intake valve includes a valve stem and a valve guide arranged proximate the valve stem. The valve guide and valve stem define a first clearance dimensio... | 01/04/2005 |
| 6694932 | Valve assembly with swinging valve face moving out of the fluid path A valve assembly for limiting the flow of fluid into and out of a chamber, consisting of: a valve seat in a wall of the chamber, wherein fluid flows into and out of the chamber through the valve seat; a valve face engaging the valve scat, wherein the valv... | 02/24/2004 |
| 6489043 | Iron aluminide fuel injector component An iron aluminide fuel injector component such as a nozzle, plunger or other part is manufactured from iron aluminide or includes an iron aluminide coating on at least a portion of a surface in contact with the fuel which passes through the fuel injector.... | 12/03/2002 |
| 6394128 | Intake tract negative pressure relief valve for I.C. engine A pressure relief valve is disclosed for use in air intake tracts of I.C. engine installations. The air valve includes a tubular member having apertures therein covered over by resilient diaphragm elements that, when a negative pressure (vacuum) within th... | 05/28/2002 |
| 6199531 | Shutter valve system for internal combustion engines A valve system designed for use in an internal combustion engine to regulate the flow of working fluids including air/fuel mixtures and exhaust gases to and from a cylinder comprising an intake valve and an exhaust valve. At least one but preferably both ... | 03/13/2001 |
| 5931134 | Internal combustion engine with improved combustion An internal combustion design which allows for enhanced control of the fuel-air mixture and complete exhaust of combustion gases during the exhaust stroke. The internal combustion engine does not require that the combustion gas outlet valve enter into the... | 08/03/1999 |
| 5575628 | Gas compressor An internal combustion engine having cylinders and a head assembly adapted for compressing gas, wherein one or more cylinders of an inline-cylinder engine are modified to compress flammable gas, such as natural gas. The engine cylinders and head assembly ... | 11/19/1996 |
| 5422321 | Composition and process for making an engine valve The present invention discloses a composition for a valve of an advanced heat engine. The valve comprises grains of aluminum-doped silicon carbide. The grains are of two main types: (1) a matrix of equi-axed grains of alpha and beta SiC for optimum distri... | 06/06/1995 |
| 5291868 | Single overhead cam multi-valve engine Several embodiments of internal combustion engines having at least five valves, three intake and two exhaust, all operated by a single camshaft. The intake valves are disposed so as to provide a smooth combustion chamber configuration by minimizing the di... | 03/08/1994 |
| 5094200 | Lightweight composite engine valve A composite intake or exhaust valve for an internal combustion engine is disclosed. The composite engine valve comprises a valve head of lightweight, heat resistant metal alloy material and a valve stem of lightweight, heat resistant ceramic based materia... | 03/10/1992 |
| 4494489 | Cylinder head for four-cycle internal combustion engines A cylinder head for four-cycle internal combustion engines with a concave combustion space portion, in which are arranged one inlet and one exhaust valve each with a relatively small V-angle; the center axis of the inlet and exhaust valves are located in ... | 01/22/1985 |
| 4228770 | Internal combustion engine fuel supply system A fuel supply system for an internal combustion engine having inlet porting and a fuel supply passage with valve means therein, the cross-sectional area lying within the outside passage walls being greater in the region of the valve means than in a region... | 10/21/1980 |
| 4218994 | Fluid intake and exhaust assemblies for positive displacement apparatus Disclosed are intake and exhaust assemblies for forced air intake, reciprocating piston, internal combustion engine. Alternate embodiments of the air intake valve assembly include a hollow tube defining the intake port with means operatively coupling the ... | 08/26/1980 |
| 4182299 | Engine valve An engine valve has a valve body, a valve head, an annular metallic valve seat layer fusibly bonded to the valve head that has a relatively fine crystalline structure, and a thinner region of interstitial bond between the valve head and the valve seat lay... | 01/08/1980 |
| 4114585 | Internal-combustion engines A spark-ignition four-stroke gasoline engine, of the commonly mass-produced type having a plurality of cylinders provided each with two poppet valves mounted in a cylinder-head of the engine and constituting respectively an inlet valve, for passing a fuel... | 09/19/1978 |
| 4108132 | Internal combustion engine having an improved inlet valve arrangement Insulating spaces or material formed on or disposed in an inlet valve seat partially insulates same to reduce the rate of heat dissipation into the cylinder head. The hotter than normal valve and valve seat insert heat and partially evaporate the HC layer... | 08/22/1978 |
| 4106466 | Engine valve with recessed seat and annular groove An engine cylinder head has valves reciprocally mounted thereto, each valve having a head which is seatable against a seat. The seat is recessed in a cylindrical bore defined by the head, the outer periphery of the head being in close proximity to the sur... | 08/15/1978 |
| 3963016 | Valve chests An overhead valve chest for an internal combustion engine with a cylindroconical portion adjacent to the bottom seating of the chest within the cylinder-head and comprising a sealing ring overlapping said cylindro-conical portion and mounted in a groove t... | 06/15/1976 |
