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| Number | Title | Issue Date |
| 7357117 | Structured combustion chamber for use in engine A structured combustion chamber for an engine has a cylinder head with an intake hole portion communicating between an intake port and a combustion chamber and an exhaust hole portion which makes a communication between an exhaust port and the combustion chamber, an... | 04/15/2008 |
| 7328679 | Valve guide structure A valve guide structure is provided which can suppress deterioration of a valve guide even if radial stress is applied on an upper portion of a stem of a valve. The valve guide structure is such that the stem 2 of the valve 1 is supported by an ... | 02/12/2008 |
| 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 |
| 6997404 | Porous plastic fuel filter for a fuel injector An improved filter assembly for a solenoid-actuated fuel injector having a fuel-resistant porous filter element in a filter retainer tube for disposition in the fuel tube of the fuel injector. Fuel flow through the filter element is axial. The filter retainer tube r... | 02/14/2006 |
| 6971168 | Compressor valve plate A method of manufacturing a compressor valve plate (36) comprises at least the following steps in succession: blanking of a blank of the plate (36) from a steel sheet of suitable thickness, punching holes corresponding to the output and intake openings... | 12/06/2005 |
| 6920690 | Method of manufacturing a fuel injector seat A fuel injector seat for a fuel injector assembly, and more particularly for a high-pressure fuel injector assembly, having a number of features for minimizing the formation of combustion chamber deposits on the seat, providing a selected finish on a needle-sealing ... | 07/26/2005 |
| 6834667 | Adjustment pipe for fuel injection valve, and press-fitting structure and press-fitting method for the same In a fuel injection valve, an adjustment pipe made of stainless steel and for adjusting a compression amount of a spring biasing a valve member is press-fitted into a cylindrical housing made of stainless steel, and a fuel injection amount is adjusted by adjusting a... | 12/28/2004 |
| 6434822 | Method of fuel injector assembly A method of assembly of a fuel injector having a valve plunger reciprocable in a guide tube for movement from a closed position engaging a valve seat to an open position engaging a valve stop by energizing of a solenoid coil to move the plunger against a ... | 08/20/2002 |
| 6345440 | Methods for manufacturing multi-layer engine valve guides by thermal spray A method of making valve guides by thermal spraying a wear-resistant layer onto a rotating mandrel that is subsequently built up by thermal spraying steel on the wear-resistant layer. A flame spray polymer lubricant may be applied to the wear-resistant la... | 02/12/2002 |
| 5913554 | Intake system construction for internal combustion engine and manufacturing process of intake passage section of internal combustion engine An intake system construction according to the present invention for an internal combustion engine is provided with a combustion chamber formed with upper and lower extremities thereof defined by a cylinder head and a piston, an intake open end arranged f... | 06/22/1999 |
| 5625946 | Armature guide for an electromechanical fuel injector and method of assembly A low cost method for manufacturing and aligning the upper and lower guide members in a fuel injector reduces manufacturing cost and improves durability. The method teaches the use of an alignment tool to axially align both guide members before the guide ... | 05/06/1997 |
| 5564187 | Apparatus and method for an aluminum alloy cylinder head having a valve guide bore with spaced wear resistant integral surfaces This application discloses an aluminum alloy cylinder head for an internal combustion engine having an integral valve stem guide bore therein with integral wear resistant end portions of the bore formed by an integrally bonded but different metal alloy fo... | 10/15/1996 |
| 5539980 | Process for forming valve guide insert A thin-walled valve guide insert for lining and relining a valve guide of an internal combustion engine includes opposing ends each having a tapered insertion section thereon. The tapered insertion section defines a reduced outer diameter to facilitate in... | 07/30/1996 |
| 5493776 | Method of installing valve guide insert A thin-walled valve guide insert for lining and relining a valve guide of an internal combustion engine includes opposing ends each having a tapered insertion section thereon. The tapered insertion section defines a reduced outer diameter to facilitate in... | 02/27/1996 |
| 5406917 | Oil-starved valve assembly A valve assembly (10) for use in an engine (12), comprising a valve stem guide (14) and a valve seat insert (40) mounted within the engine (12), the valve stem guide (14) and the valve seat insert (40) being provided with a solid film lubricant (30) impre... | 04/18/1995 |
| 5372103 | Method of mounting a ceramic valve guide assembly In order to achieve great engine efficiency, heat, normally dissipated through the cooling system, is directed through the exhaust passage to increase the turbocharger output. Conventional iron base valve guides cannot operate effectively within the high ... | 12/13/1994 |
| 5072885 | Valve needle and method for producing a valve needle A fuel injection valve for an internal combustion engine, in which the valve needle blanks are cut from a profile bar having grooves in its circumference which extends the direction of the longitudinal axis; the blanks are then twisted to form helical gro... | 12/17/1991 |
| 5041168 | Valve guide A valve guide and a method for the manufacture thereof are described. The valve guide is a tubular article having a length to outer diameter ratio greater than about 1.5 and is made of a ferrous material by a PM route. The pressed guide is infiltrated by ... | 08/20/1991 |
| 4798181 | Valve guidance for an exhaust gas valve of an internal combustion engine A valve guidance for an exhaust gas valve in the form of a disk valve of an internal combustion engine which is used for the control of an exhaust gas channel of an internal combustion engine; a guide body with good heat-conducting and sliding properties ... | 01/17/1989 |
| 4768479 | Oil-sealing valve guide insert and method of manufacture A slitted tubular valve guide is provided with a substantially spiral groove along its entire length. At each point of intersection between the spiral groove and the slit, the ends of the groove segments immediately adjacent the slit are offset by an amou... | 09/06/1988 |
| 4676064 | Heat-insulated port liner arrangement and method of fabrication A heat-insulated port liner arrangement for a device composed of a cast metal which is molded around the arrangement and includes a tubular port liner composed of a material including a ceramic, a first covering layer disposed on the outer surface of the ... | 06/30/1987 |
| 4602409 | Method for securing a funnel-shaped guide member in a self-adjusting hydraulic tappet A method of securing a funnel-shaped guide member in the bore wall of the p-shaped casing of a self-adjusting hydraulic tappet for overhead camshaft internal combustion engines comprising first introducing a funnel-shaped guide member (2) into the bore of... | 07/29/1986 |
| 4484547 | Valve guide and method for making same A valve guide for the stem of a valve in an internal combustion engine is provided having an inner bore through which the stem of the valve is longitudinally positioned, the inner bore surface of the body being nitrided in order to harden the body about t... | 11/27/1984 |
| 4465040 | Valve guide insert A valve guide insert for placement in a valve guide of an internal combustion engine to guide a valve stem of the typical valve assembly while minimizing the valve insert wear. The valve guide insert may be a cast iron or other metal sleeve assembly havin... | 08/14/1984 |
| 4342293 | Valve guide and method for making same A valve guide for the stem of a valve in an internal combustion engine is provided having an inner bore through which the stem of the valve is longitudinally positioned, the inner bore surface of the body being nitrided in order to harden the body about t... | 08/03/1982 |
| 4185368 | Method for making valve guide inserts The specification discloses an insert for lining and/or relining valve guides for reciprocating-type poppet valves in cylinder heads of internal combustion engines. The insert has multiple layers of metallic materials and preferably includes an inner slee... | 01/29/1980 |
