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| Number | Title | Issue Date |
| 7757396 | Raw material powder for laser clad valve seat and valve seat using the same There are disclosed a laser clad valve seat raw-material powder superior in productivity, cladding property, wear resistance and finishing property, and a laser clad valve seat using the same superior in wear resistance. The row-material powder comprises a powder mi... | 07/20/2010 |
| 7418781 | Method for production of a throttle valve in a continuous throttle valve connector A peripheral, annular groove is incorporated into a throttle valve connector in one step. A first die and a second die are then inserted into the throttle valve connector and a first plastic material is introduced into a first cylindrical cavity formed thereby in a ... | 09/02/2008 |
| 7363796 | Cold form nozzle for laser processing A method for cold-forming a nozzle for a laser includes placing a slug or tube of oxygen-free copper into a die. A mandrel is forced into the copper slug or tube. The resultant compressive force causes the copper to cold flow around the mandrel and the die to define... | 04/29/2008 |
| 7360722 | Fuel injector with grooved check member A method and apparatus for injecting fluid into a machine are disclosed. A fluid injector is disclosed having a nozzle body with at least one fluid injection orifice therein and being configured for transmitting fluid toward the injection orifice. The nozzle body ma... | 04/22/2008 |
| 7316067 | Forming a perforate membrane by laser drilling and a subsequent electro-polishing step A method of forming a perforate membrane (1) is disclosed for use in a liquid transport device. The membrane has at least plural nozzles (10) formed therethrough. Each of those nozzles has a throat portion (12) opening at opposite end through op... | 01/08/2008 |
| 7216427 | Surface treatment of prefinished valve seat inserts A prehardened valve seat insert and a process for forming a prehardened valve seat insert for insertion into a cylinder head or an engine block of an internal combustion engine. The process comprises the steps of (a) forming the valve seat insert; (b) precision mach... | 05/15/2007 |
| 7108242 | Seat valve A seat valve in a motor vehicle wheel slip control system includes a valve tappet acting as a valve closure member, where the valve tappet is movably guided and aligned with a valve seat member by a centering sleeve that guides the valve tappet. The centering sleeve... | 09/19/2006 |
| 7101439 | Fluid application device A fluid application device stores seam paste in a reservoir tank 18 and feeds the seam paste to a pressure tank 20 through a feed pump 22. Inside of the pressure tank 20 is maintained under a given air pressure by a pneumatic unit 26, | 09/05/2006 |
| 7089902 | Sintered alloy valve seat and method for manufacturing the same A valve seat, press-fitted into a cylinder head of an internal combustion engine, containing an iron-based sintered alloy, includes a valve-seating section and a head-seating section. The valve-seating section and the head-seating section are monolithically formed b... | 08/15/2006 |
| 7013858 | Method for the production of a valve seat This invention relates to a method for the production of a valve seat (5) for a cylinder head of an internal combustion engine. According to said method, an additional material is melted with the cylinder head by applying energy in the site in which the valve... | 03/21/2006 |
| 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 |
| 6903302 | Method for manufacturing valve seat using laser cladding process A method for manufacturing valve seats using a laser cladding process is provided that includes forming a casting material on which the valve seats are to be formed; fabricating a valve seat target position on which laser cladding will be performed, the valve seat t... | 06/07/2005 |
| 6826833 | Fuel injection valve and a method for manufacturing exit outlets on the valve The invention relates among others to a method for producing outlet openings (32) in a valve, in particular a fuel injection valve. The injection valve has a fuel inlet (2), an excitable actuating device (1, 2, 19) by which a valve closing membe... | 12/07/2004 |
| 6640410 | Line transfer system with a contour machining head A line transfer system with a contour machining head. The system includes a transmission arbor, a housing, a contour machining head, a driving system, and a system controller. The transmission arbor mounts within the housing, with the transmission arbor a... | 11/04/2003 |
| 6564457 | Machining method of valve seat with laser-clad metal Immediately after a laser-cladding is performed, a control surface is formed by machining the clad metal while an extra metal is left. An intermediate inspection is performed about presence/absence of any defect in the clad metal using the control surface... | 05/20/2003 |
| 6564456 | Method of finishing a valve seat for ball valves, in particular for fuel injection valves in internal combustion engines A method for finishing a valve seat for ball valves, in particular for fuel injection valves in internal combustion engines. The workpiece to be finished and a finishing tool are driven in an opposite direction of rotation, whereby the axes of rotation of... | 05/20/2003 |
| 6543136 | Method for improved valve seating of a fuel injector by coining and a valve made thereby A method for making a valve assembly is disclosed. The method includes providing a first work piece having a longitudinal axis and a first end and providing a second work piece having a surface. The method also includes disposing the first work piece and ... | 04/08/2003 |
| 6536397 | Bonding structure of valve seat and method of making the same A bonding structure of a valve seat has a port opening of a metallic head and an annular metallic valve seat insert. The valve seat insert includes an outer reduced diameter surface on its outer circumference. The material of the valve seat insert is hard... | 03/25/2003 |
| 6530727 | Contour machining head The machining head for machining valve seats comprises a driving system, a housing, a carriage feed assembly, a cutting tip mounted on the carriage, and a counterweight assembly. The driving system rotates a machining head on a spindle axis, and further p... | 03/11/2003 |
| 6526656 | Coating for 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 need... | 03/04/2003 |
| 6519847 | Surface treatment of prefinished valve seat inserts A method of manufacturing surface treated, prefinished valve seat inserts. The method entails forming the valve seat insert, precision machining the valve seat insert to precise tolerances so that the valve seat insert can be installed in one of the cylin... | 02/18/2003 |
| 6405419 | Engine valve and seat burnishing system An arrangement for exercising (or burnishing) the intake and exhaust valves in the cylinder head of an internal combustion engine employs a plurality of out-of-phase eccentric cams coupled to a source of rotatory motion. The eccentric cams engage with res... | 06/18/2002 |
| 6397464 | Method for producing a valve seat In a method for producing a valve seat for a cylinder head of an internal combustion engine made of an aluminum metal alloy as the base material, an added material is fused by a laser beam with the base material of the cylinder head at the point at which ... | 06/04/2002 |
| 6382883 | Method for lapping valve seats using a single point cutting tool The cutting tool for machining valve seats comprises a driving system, a spindle assembly, and a system controller. The driving system provides rotational movement and vertical movement for the spindle assembly which is controlled by the system controller... | 05/07/2002 |
| 6354001 | Method of manufacturing a Ti alloy poppet value A bar material is made of an (+ଲ) or a near Ti alloy which comprises a regular structure, and the end thereof is heated at a temperature above its ଲ transformation point by an electric forging device to form an enlarged ... | 03/12/2002 |
| 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 |
| 6270849 | Method of manufacturing a metal and polymeric composite article A method of manufacturing a metal and polymeric composite article by the following steps. Droplets of spray deposited metal and spray deposited polymeric material are combined to form an article having the polymeric material interspersed within the metal.... | 08/07/2001 |
| 6259054 | Method of fitting a valve seating ring and an apparatus therefor A welding machine for weld bonding a valve seating ring in an annular recess of a cylinder head (20) includes an electrode tool (14) on which the ring is located and an overhead support (18, 40, 44, 46) for mounting the cylinder head above the tool. In us... | 07/10/2001 |
| 6189816 | Method for producing a valve-seat body for a fuel injection valve, and corresponding fuel injection valve Besides the conventional process steps of manufacturing a valve-seat body, forming a through opening inside the valve-seat body, forming a valve-seat as a frustoconical section of the through opening, and forming a guide area, the proposed method for manu... | 02/20/2001 |
| 6173914 | Valve and method for producing a valve seat for a valve A valve includes an orifice disk element having at least two sheet metal layers lying in sandwich fashion against one another. The orifice disk element includes at least a base region with the opening geometry necessary for spray discharge of the medium, ... | 01/16/2001 |
| 6138351 | Method of making a valve seat A valve seat and cylinder head arrangement wherein the valve seat insert is formed from a material having an elongation at rupture of greater than 1 percent so as to facilitate tapered pressing to form a bonded valve seat.... | 10/31/2000 |
| 6035532 | Groove means in a fuel injector valve seat A method of manufacturing a conical valve seat, wherein the valve seat surface is placed in alignment with a cutting edge of a pattern impression pin, a predetermined amount of pressure is applied to the valve seat to move the seat surface relative to the... | 03/14/2000 |
| 5970614 | Method for forming valve seats A method of forming cylinder heads having bonded valve seat inserts. The method reduces the machining operations necessary to place the insert in place by forming the cylinder head casting with reference surfaces that are employed for determining the pres... | 10/26/1999 |
| 5934238 | Engine valve assembly A valve assembly 10 for use in an engine. The assembly 10 includes a valve 12 including a valve seat face 16. An insert 18 is mounted within the engine for cooperating in sealing engagement with the valve seat face 16. The insert 18 and the valve seat fac... | 08/10/1999 |
| 5794337 | Valve seat and test procedure A method of forming a bonded valve seat and testing the resulting bond strength in ensure that the desired characteristics have been achieved. The testing is done both during the bonding process and at the completion of the process.... | 08/18/1998 |
| 5787583 | Apparatus and method for setting a valve lift An apparatus and a method are proposed for adjusting a valve lift, particularly a valve needle lift of an injection valve of an internal combustion engine, wherein a valve seat, which is preset in a housing of the valve (20), is axially displaceable in th... | 08/04/1998 |
| 5778531 | Method of manufacturing cylinder head for engine An improved method of forming a bonded valve seat for a cylinder head wherein the configuration of the insert ring and cylinder head recess is such to ensure good bonding over the entire area and the proper amount of sinking of the insert ring into the cy... | 07/14/1998 |
| 5768779 | Method of manufacturing cylinder head for engine An improved method of forming a bonded valve seat for a cylinder head wherein the configuration of the insert ring and cylinder head recess is such to ensure good bonding over the entire area and the proper amount of sinking of the insert ring into the cy... | 06/23/1998 |
| 5761806 | Method of bonding valve seat A valve seat and cylinder head arrangement wherein the valve seat is formed by a pressing and electrical heating operation to form a bonded valve seat.... | 06/09/1998 |
