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| Number | Title | Issue Date |
| 8109247 | Wear resistant camshaft and follower material A materials combination for a camshaft and follower of an engine valve train provides excellent wear resistance. The camshaft or camshaft lobes are made from a malleable cast iron and the cam followers are made from a carbonitrided 52100 or 4130 steel to provide exc... | 02/07/2012 |
| 8109248 | Valve lifter and surface treatment method thereof The present invention provides a valve lifter, including a buffer layer, a Me diamond-like carbon layer having a thickness of 0.3˜0.6 μm, and a diamond-like carbon layer having a thickness of 1˜1.5 μm and a SP3 bonding fraction of 60˜70%, which are sequentially... | 02/07/2012 |
| 7600499 | Titanium alloy valve lifter A lightweight and high-strength valve lifter is excellent in wear resistance and sliding properties. The valve lifter is made of a titanium alloy having a hardened layer on the top surface thereof, on which a cam is caused to slide. The hardened layer is composed of... | 10/13/2009 |
| 7387098 | Cam follower A cam follower includes a roller on which a cam rolls. A material ratio Rmr (C) (C: a section level %) of an radially outer surface of the roller is set to relations of 0% | 06/17/2008 |
| 7367301 | CAM follower There is provided a cam follower in which a surface roughness of an outer surface of a roller of a cam follower which is in rolling contact with a cam of an engine is obtained individually in an axial direction and a circumferential direction, a skewness Rsk of a pr... | 05/06/2008 |
| 7367584 | Gas generating system A gas generator (10) includes an igniter (27) and first and second inflation gas generant compositions (52, 52′) positioned to enable fluid communication with the igniter (27) upon activation of the igniter. Flow regulators (54, 54 | 05/06/2008 |
| 7314498 | Sintered alloys for cam lobes and other high wear articles An iron-based sintered powder metal article for cam lobe and other high temperature, high wear applications requiring excellent net-shape stability during sintering comprises a powder metal mixture consisting essentially of, by weight, 0.5–3.0% Mo, 1–6.5% Cr, 1â... | 01/01/2008 |
| 7308760 | Method of making a valve lifter A valve lifter and a method of manufacture thereof is provided in which sliding properties of a cam on a cam-contacting sliding surface in an upper surface of a valve lifter are improved by forming the cam-contacting sliding surface as a concave surface to permit re... | 12/18/2007 |
| 7300379 | Differential with thin film coating at cross shaft and processes for manufacturing the same A process for improving the durability of a differential, where the differential has a pinion shaft and a pinion, the pinion shaft having a surface that contacts the surface of the inner diameter of the pinion. The process comprises bonding to the surface of the pin... | 11/27/2007 |
| 7275760 | Multi-chamber gas generating system A multi-chamber gas generating system (10) has a housing (12) with openings (24) formed in a wall thereof. A gas-tight internal divider (42) separates the housing into two chambers (80, 80′). A first gas generating sub-assembly (... | 10/02/2007 |
| 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 |
| 7267365 | Inflator An inflator for a vehicle occupant restraint system. The inflator includes a cylindrical outer wall having a longitudinal axis and a first opening formed therealong for enabling fluid communication between an interior of the inflator and an exterior of the inflator.... | 09/11/2007 |
| 7267062 | Adjustable pile height mechanism and method for adjusting the pile height of a tufted floor covering An adjustable pile height mechanism for producing a tufted floor covering comprising an adjustable bed plate, a cam shaft, and a plurality of eccentric cams mounted on the cam shaft so as to contact the bed plate. The cam shaft is adapted to be rotated so as to rota... | 09/11/2007 |
| 7261075 | Hydraulic support element The invention relates to a hydraulic support element (1) for a valve gear for an internal combustion engine. Said element consists of a cylindrical hollow case (2) in whose bore hole (3) a pressure piston (4) made of a glass or carbon fib... | 08/28/2007 |
| 7246586 | Wear-resistant coating and process for producing it The present invention relates to a process for producing a wear-resistant coating and to a wear-resistant coating on predetermined surfaces of machine or engine parts, in particular for internal combustion engines, which are exposed to frictional wear, comprising at... | 07/24/2007 |
| 7237801 | Gas generating system A gas generating system (10) includes a tubular outer housing (12) having a longitudinal axis (L) and one or more apertures (12d) formed therealong to enable fluid communication between an interior of the outer housing and an exterior of ... | 07/03/2007 |
| 7210437 | Periodically actuable tappet for a valve train or a pump drive The invention proposes a periodically actuable tappet (1) for a valve train, said tappet (1) comprising a hollow cylindrical skirt (2) that can be arranged through an outer peripheral surface (3) in a guide bore (4) of a surroundin... | 05/01/2007 |
| 7185619 | Rocker arm and method of manufacturing the same A rocker arm 1 made of sheet metal is formed so that Vickers hardness Hv of the surface layer portion 9a of the valve stem receiver 9 is set at Hv 650 to 800 and a quantity of the retained austenite γR is set at 25 ... | 03/06/2007 |
| 7185620 | Cam follower of a valve drive of an internal combustion engine A cam follower of a valve drive of an internal combustion engine, having a run-on surface for following at least one cam. The run-on surface has a microstructure comprising depressions for accumulating lubricant, wherein the depressions form an at least largely symm... | 03/06/2007 |
| 7156061 | Valve lifter A valve lifter, in which an amorphous hard carbon film is coated at least on the surface that slides against a cam, is characterized in that the surface of a base material (substrate) has an arithmetic mean roughness of Ra 0.01 to 0.03 micrometers, and the maximum l... | 01/02/2007 |
| 7143731 | Cup tappet of a valve train of an internal combustion engine The invention proposes a cup tappet (1) of a valve train of an internal combustion engine, said cup tappet (1) comprising a hollow cylindrical skirt (3) closed at one end by a bottom (2), said bottom (2) comprising an outer end sur... | 12/05/2006 |
| 7128034 | Valve lifter body The present invention relates to a valve lifter body, comprising an outer surface, enclosing a first cavity and a second cavity, wherein the first cavity includes a first inner surface configured to house a cylindrical insert, the second cavity includes a second inn... | 10/31/2006 |
| 7093575 | Pin housing sub-assembly for an hydraulic valve lifter An improved pin housing sub-assembly configured for reliable assembly and stability as an intermediate sub-assembly. The length of the plunger return spring is greater than the diameter of the spring well in the pin housing, such that the spring cannot be accidental... | 08/22/2006 |
| 7086361 | Durable valve lifter for combustion engines and methods of making same A valve system lifter for combustion engines includes a hard metal face pad connected to a lower-grade metal lifter body. The connecting material is one or more materials that are different from both the lifter body and the face pad. Preferably, the connecting mater... | 08/08/2006 |
| 7077337 | High pressure fuel supply apparatus A high pressure fuel supply apparatus 6 having: a plunger 161 reciprocating and sliding in a sleeve 160 of a high pressure fuel pump 16 so as to form a fuel pressurizing chamber 163 between the plunger 161 and the sleeve ... | 07/18/2006 |
| 7021557 | Thin film coatings for fuel injector components A thin film coating for a low allow steel or tool steel components in a fuel injector (14), such as a fuel injector needle valve (86) is disclosed. A thin film coating (96) consists of a metal carbon material layer less than 2.0 microns thick ap... | 04/04/2006 |
| 7013857 | Leakdown plunger The present invention relates to a leakdown plunger, comprising a first plunger opening, a second plunger opening, and an outer plunger surface that is provided with an axis and encloses an inner plunger surface, the first plunger opening is provided with a first an... | 03/21/2006 |
| 6994064 | Guide rail for the valve train of an internal combustion engine In a guide rail for the valve train of an internal combustion engine, having receiving spaces disposed in an elongate body in spaced-apart relationship behind one another and accommodating valve lifters, flats are formed upon the outer surface area of each valve lif... | 02/07/2006 |
| 6991219 | Article having a hard lubricious coating A valving assembly for a motor vehicle includes a hard, lubricious and chemically inert coating of graphitic carbon. The coating may include a metal. Preferred metals include chromium or other transition metals. ... | 01/31/2006 |
| 6955286 | Use of silver-copper-palladium brazing alloys A compound arrangement comprising a first component of metal being brazed to a second component of metal. The first component has an external cylindrical surface touching an cylindrical internal surface of the second component. The second component clasps the first ... | 10/18/2005 |
| 6935618 | Valve component with multiple surface layers A sliding component, particularly a disk valve plate. The sliding component includes a multi-layer surface structure comprising a strengthening layer harder than the substrate material, and an amorphous diamond top layer. ... | 08/30/2005 |
| 6912984 | Composite lightweight engine poppet valve A composite lightweight engine poppet valve (10, 110, 210) that has a valve head portion (12, 112, 212) and at least a portion of the stem portion (14, 114, 214) made from a titanium intermetallic material attached by way of a solid state attach... | 07/05/2005 |
| 6729286 | Fuel supply apparatus for engine A fuel supply apparatus capable of reducing the abrasion of a driving cam and a tappet without increasing the dimensions and weight of the apparatus. This fuel supply apparatus is provided with a tappet which has a pressure receiving surface contacting the driving c... | 05/04/2004 |
| 6681735 | Sliding member and method of manufacturing thereof A sliding member (12) is disclosed that has superior slidability and durability at a low cost. A top sliding surface (12a) of the sliding member (12) is formed by a nitriding process that creates a compound layer (14) and a diffusion layer (15) on a base ... | 01/27/2004 |
| 6367439 | Combination body of shim and cam In a combination of the shim 5 and cam 1 for use in a reciprocating mechanism portion, the shim 5 is made of a material having a hardness higher than that of the sliding surface of the cam 1 and the sliding surface of the shim 5 is finished to within a ra... | 04/09/2002 |
| 6349689 | Tappet assembly with a ceramic wear pad A tappet assembly for an internal combustion engine, the tappet assembly having a first end mechanically connected to a engine component and second end adapted to contact a cam lobe of a camshaft to displace the engine component, where the tappet assembly... | 02/26/2002 |
| 6263849 | Ultra light engine valve and method of welding cap thereto A hollow poppet valve (31) is disclosed, in which a stem portion (13) includes a flared fillet portion (17), having a wall thickness (T), and a downwardly-extending cylindrical portion (33;51), having a cylindrical external surface (35). In the main embod... | 07/24/2001 |
| 6257189 | Valve guide A valve lifter guide for internal combustion engines for preventing rotation of the valve lifters. The guide consists of an elongated support which is affixed to an internal combustion engine block, and spaced resilient cantilever supported fingers extend... | 07/10/2001 |
| 6237441 | Combination of shim and cam An object of this invention is to provide a combination of a shim and a cam for use in a reciprocating mechanical system operated under a severe sliding condition, the combination not only assuring an excellent sliding characteristic by reducing friction ... | 05/29/2001 |
| 6213075 | Roller follower assembly for an internal combustion engine Roller follower assemblies generally reduce frictional losses and wear associated with operating fuel injectors using a cam. Oil helps to reduce wear, but may not remove small particles. Buildup of these small particles may prevent a roller of the roller ... | 04/10/2001 |
