| Patents for F01L 3 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof (4,573) |
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| 09/01/1998 | US5799683 Poppet valve and method of manufacturing it |
| 08/27/1998 | DE19742552A1 Reciprocating piston engine with admission port in piston |
| 08/25/1998 | US5797368 Reciprocating piston internal combustion engine having at least one cylinder |
| 08/20/1998 | WO1998036262A1 Method and device for testing a component made from brittle material |
| 08/20/1998 | WO1998036159A1 Gas shuttle valve, and method for measuring the pressure in the combustion chamber of an internal combustion chamber |
| 08/20/1998 | DE19705621A1 Gaswechselventil und Verfahren zum Messen des Druckes in einem Brennraum einer Brennkraftmaschine Gas exchange valve and method for measuring the pressure in a combustion chamber of an internal combustion engine |
| 08/20/1998 | DE19705412A1 Verfahren und Vorrichtung zur Prüfung eines aus sprödem Material bestehenden Bauteils Method and apparatus for examination of an existing component of brittle material |
| 08/19/1998 | EP0859176A2 Exhaust gas recirculation valve with variable flow area |
| 08/19/1998 | EP0859131A1 Poppet valve and method of making it |
| 08/18/1998 | US5794654 Reed valve apparatus |
| 08/18/1998 | US5794337 Valve seat and test procedure |
| 08/13/1998 | WO1998035140A1 Internal combustion piston engine with an admission port in the piston |
| 08/12/1998 | EP0857793A1 High corrosion resisting alloy for diesel engine valve and method for producing the valve |
| 08/11/1998 | US5792402 Method of manufacturing carbon fiber reinforced carbon composite valves |
| 08/11/1998 | CA2102575C Low friction valve train |
| 08/05/1998 | CN1189574A Hollow valve in internal combustion engine |
| 08/04/1998 | US5787853 Valve seat-bonding area structures and valve seat-bonded cylinder head with the structures |
| 07/29/1998 | EP0855495A1 Hollow valve in an internal combustion engine |
| 07/21/1998 | US5784681 Method of making a sintered article |
| 07/14/1998 | US5779972 Heat resisting alloys, exhaust valves and knit meshes for catalyzer for exhaust gas |
| 07/14/1998 | US5779244 Seal apparatus |
| 07/14/1998 | US5778534 Method of making exhaust valves for use in automobiles |
| 07/14/1998 | US5778531 Method of manufacturing cylinder head for engine |
| 07/07/1998 | US5775284 For use in an internal combustion engine |
| 07/02/1998 | WO1998028523A1 Method of fitting a valve seating ring and an apparatus therefor |
| 07/02/1998 | DE19652711A1 Tool for fitting valve keys between valve disc and stem in internal combustion engines |
| 07/01/1998 | EP0850352A1 Internal combustion engine with crankcase pressure barrier |
| 07/01/1998 | EP0725890B1 Cylinder head for a four stroke combustion engine |
| 06/30/1998 | US5771873 Hydrogenated carbon |
| 06/30/1998 | US5771852 Poppet valve with embossed neck structure |
| 06/30/1998 | US5771849 Internal combustion engine with crankcase pressure barrier |
| 06/25/1998 | WO1998027319A1 Outward opening valve system for an engine |
| 06/24/1998 | CN1185822A Thermodynamical aspiration valve |
| 06/23/1998 | US5769037 Low melting point alloy containing tin and bismuth is enclosed in the cavity |
| 06/23/1998 | US5768779 Method of manufacturing cylinder head for engine |
| 06/18/1998 | DE19651914A1 Device for preventing total engine failure with torn gear belt in Otto engines |
| 06/17/1998 | EP0848072A1 An abrasion resistant valve seat made of sintered alloy for internal combustion engines |
| 06/16/1998 | US5765520 Cylinder head for engine |
| 06/10/1998 | EP0775253A4 Titanium engine valve |
| 06/10/1998 | DE19650249A1 Shaft rotation angle and valve lift detection arrangement for engine |
| 06/09/1998 | US5761806 Method of bonding valve seat |
| 06/02/1998 | US5759227 Iron alloys for wear resistant valves |
| 05/28/1998 | DE19647099A1 Increasing wear resistance especially of gas-powered engine valve |
| 05/22/1998 | WO1998021452A1 Device for mixing air and fuel in the combustion chamber of an internal combustion engine |
| 05/20/1998 | EP0843022A1 Adherently sprayed valve seats |
| 05/19/1998 | US5753179 Steels for exhaust valves having improved fatigue strength at high temperature, corrosion resistance at room and higher temperatures and oxidation resistance |
| 05/05/1998 | US5745993 Valve seat |
| 04/30/1998 | DE19644146A1 Rotatable electromagnetic valve for vehicle IC engine |
| 04/29/1998 | EP0838533A1 Heat resisting alloy for exhaust valve and method for producing the exhaust valve |
| 04/28/1998 | US5743225 Valve system for engine |
| 04/22/1998 | EP0837226A1 Valve driven internal combustion engine with compression variation arrangement |
| 04/22/1998 | EP0836675A1 Arrangement in a cylinder head |
| 04/22/1998 | EP0753101A4 Engine components including ceramic-metal composites |
| 04/21/1998 | US5742020 Valve seat-bonded cylinder head and method for producing same |
| 04/21/1998 | US5740771 For a piston driven internal combustion engine for propelling vehicles |
| 04/15/1998 | CN1178865A Structure of internal combustion engine air vent |
| 04/14/1998 | US5738818 Pre-ceramic resin and fibers are packed in a mold cavity, heating the prepolymer to polymerize in the cavity to form fiber reinforced polymer composite, removing polymer by pyrolysis to form fiber reinforced ceramic matrix composite |
| 04/14/1998 | US5738060 Poppet valve and method of making the poppet valve |
| 04/14/1998 | US5738057 Low profile internal combustion engine |
| 04/14/1998 | US5738051 Four-cycle marine engine |
| 04/07/1998 | US5735043 Method for mounting and finishing valve seat rings pre-manufactured by powder metallurgical method techniques |
| 03/24/1998 | US5730092 System for changing lift of a valve |
| 03/11/1998 | CN1175658A Engine variable valve timing mechanism |
| 03/10/1998 | US5724929 Engine variable valve timing mechanism |
| 03/05/1998 | WO1998008779A1 Compression/injection molding of polymer-derived fiber reinforced ceramic matrix composite materials |
| 03/04/1998 | EP0760054B1 Air valve combined with a valve chamber |
| 02/12/1998 | DE19646851A1 Valve for internal combustion engine |
| 02/11/1998 | EP0823015A1 Thermodynamical aspiration valve |
| 02/10/1998 | US5715911 Laminar flow lubrication |
| 02/05/1998 | WO1998004813A1 An outlet valve for combustion engines and a production method therefor |
| 02/05/1998 | CA2261624A1 An outlet valve for combustion engines and a production method therefor |
| 02/03/1998 | US5713314 Dual piston internal combustion engine |
| 01/22/1998 | WO1998002653A1 Improved internal combustion engine and working cycle |
| 01/22/1998 | WO1998002644A1 Power machine valve control |
| 01/21/1998 | EP0819836A2 a cylinder head and a method for producing a valve seat |
| 01/20/1998 | US5709183 Shroud and combustion chamber for an internal combustion engine |
| 01/20/1998 | US5709178 Electronically controlled outwardly opening valve system for an engine |
| 01/15/1998 | DE19702067A1 Poppet valve for IC engine |
| 01/15/1998 | DE19647412C1 Drive for rotating engine poppet-valve |
| 01/07/1998 | CN1169755A A cylinder member and nickel-based facing |
| 01/06/1998 | US5704121 For an internal combustion engine |
| 12/30/1997 | US5701930 Modular valve assembly |
| 12/29/1997 | EP0814245A1 Method and device for operating a spark ignited piston internal combustion engine |
| 12/29/1997 | EP0653015A4 Valves and valve timing for internal combustion engine. |
| 12/23/1997 | US5700373 Method for sealing a filter |
| 12/23/1997 | US5699762 Valve operating system for internal combustion engine |
| 12/18/1997 | WO1997047862A1 An exhaust valve for an internal combustion engine |
| 12/18/1997 | WO1997047861A1 An exhaust valve for an internal combustion engine |
| 12/17/1997 | CN2270809Y Spring top valve seat for internal-combustion engine |
| 12/11/1997 | DE19622538A1 Two-stroke engine |
| 12/09/1997 | US5694893 Outward opening valve system for an engine |
| 12/04/1997 | DE19721406A1 Ventilsitz Valve seat |
| 12/03/1997 | EP0810356A1 Reciprocating engine |
| 12/03/1997 | EP0810294A1 Heat treatable stainless steel for combustion engine valves |
| 12/02/1997 | US5692726 Bonded valve seat |
| 12/02/1997 | US5692462 Transfer valve assembly providing variable valve lash |
| 11/26/1997 | EP0808418A1 A device in a cylinder head for an internal combustion engine |
| 11/26/1997 | EP0808416A1 Two-stroke high power engine |
| 11/26/1997 | EP0787252A4 A dual piston internal combustion engine |
| 11/20/1997 | WO1997043525A1 A movable wall member in the form of an exhaust valve spindle or a piston in an internal combustion engine |