| 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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| 09/21/1993 | US5245956 Reed valve assembly |
| 09/16/1993 | WO1993018282A1 Ceramic engine valve |
| 09/14/1993 | US5243934 Multiple stage reed valves for use in internal combustion engines |
| 09/09/1993 | DE4207213A1 Keramisches gaswechselventil Ceramic gas exchange valve |
| 08/25/1993 | EP0556524A1 Valve drive with means for preventing rotational motion of the valve |
| 08/24/1993 | US5237971 Valve stem seal assembly |
| 08/19/1993 | WO1993016276A1 Method of operating an automotive type internal combustion engine |
| 08/18/1993 | CN1075350A Valve with hard-facing |
| 08/12/1993 | DE4203639A1 Solid cleaning component production method |
| 08/08/1993 | CA2088698A1 Method of operating an automotive type internal combustion engine |
| 07/27/1993 | US5230310 Combustion chamber of internal combustion engine |
| 07/13/1993 | US5226229 Self-locking valve spring retainer |
| 07/06/1993 | US5224997 Apparatus for producing a surface layer on a metallic workpiece |
| 07/06/1993 | US5224460 Method of operating an automotive type internal combustion engine |
| 06/30/1993 | EP0548993A1 Two stroke internal combustion engine comprising a crankcase intake system controlled by a valve system |
| 06/22/1993 | US5221373 Internal combustion engine valve composed of precipitation hardening ferritic-pearlitic steel |
| 06/17/1993 | DE4141100A1 Valve seat ring - is bonded with surfaces of shaped recess by friction welding during insertion |
| 06/02/1993 | EP0544458A1 Valve stem seal assembly |
| 06/01/1993 | US5215050 Method of producing a cylinder head of an internal combustion engine |
| 06/01/1993 | US5215047 Seal assembly |
| 05/26/1993 | EP0543798A2 Ceramic valve arrangement |
| 05/26/1993 | EP0543726A1 Valve with a serrated seat |
| 05/26/1993 | EP0543353A1 Method for producing an inlet or exhaust valve for internal combustion engine |
| 05/25/1993 | US5213072 Valve actuating mechanism in the cylinder head of a combustion engine |
| 05/12/1993 | EP0495975A4 Improved intake valve for internal combustion engine |
| 05/04/1993 | US5207821 Aluminum and copper alloy with molybdenum, chromium, silicon and cobalt |
| 05/04/1993 | US5207196 Pre-assembled unit for engine valve system |
| 04/27/1993 | US5205246 Economy engine |
| 04/20/1993 | US5203535 Cam actuated valve assembly with hydraulic spring |
| 04/07/1993 | EP0535888A1 Method for manufacturing a friction - welded valve |
| 04/07/1993 | EP0535759A1 Valve spring retainer for internal combustion engine |
| 03/30/1993 | US5197447 Engine having valve stroke adjuster and fuel preheater |
| 03/30/1993 | US5197434 I.c. engines |
| 03/30/1993 | US5197428 Fuel injector surrounding intake valve stem |
| 03/30/1993 | US5197189 For an internal combustion engine |
| 03/18/1993 | WO1993005281A1 Self-locking valve spring retainer |
| 03/10/1993 | EP0530720A1 Hollow valve for internal combustion engines |
| 03/03/1993 | EP0529676A1 Induction system for an internal combustion engine |
| 03/02/1993 | US5190002 Engine valve |
| 02/23/1993 | US5188659 Sintered materials and method thereof |
| 02/18/1993 | DE4225329A1 Compact and variable valve operation for IC engine - has inlet and outlet valves operated by individual solenoids controlled by CPU |
| 02/16/1993 | US5186135 Internal combustion engine |
| 02/10/1993 | EP0527088A1 Method and device for the automatic placing of two half-cones in the conical recess of a retainer |
| 02/10/1993 | EP0526736A1 Valve guide for internal combustion engine |
| 02/03/1993 | EP0526174A1 Process for making exhaust valves |
| 02/03/1993 | EP0526046A2 Composite poppet valve and method for manufacturing same |
| 02/03/1993 | EP0525330A1 Process for constructing a cylinder head for an internal combustion engine and cylinder head |
| 01/28/1993 | DE4124309A1 Valve seat ring for IC engine - has seat ring faces in cylinder head base oval, when new |
| 01/27/1993 | CN1068394A Exhaust valve for diesel internal combustion engine and method for manfuacture of valve |
| 01/21/1993 | WO1993001398A1 Mechanism controlling intake reed valves for two cycle engine |
| 01/21/1993 | WO1992019851A3 Airtight two-phase heat-transfer systems |
| 01/20/1993 | EP0523670A1 Process for making a full ceramic element and element manufactured by the process |
| 01/20/1993 | EP0380695B1 Lubrication device of valve seat portion in internal combustion engine |
| 01/07/1993 | EP0521821A2 Exhaust valve of diesel internal combustion engine and manufacturing process thereof |
| 01/07/1993 | DE4220689A1 IC engine cylinder scavenging system with lock air facility - has pressure regulator between sealing chamber and pneumatic spring chamber and pneumatic valve spring |
| 01/07/1993 | DE4120892A1 Lightweight two=part valve spring retainer - consists of pad and reinforcing component |
| 01/05/1993 | US5176170 Multiple stage reed valves for use in internal combustion engines |
| 12/30/1992 | EP0520518A1 Induction system for an internal combustion engine |
| 12/29/1992 | US5174256 Variable guide height valve seal |
| 12/23/1992 | EP0519546A1 Cam actuated valve assembly with hydraulic spring |
| 12/23/1992 | EP0519158A1 Valve stem sealing device |
| 12/22/1992 | US5173339 Spray depositing a metal on a rotating rod or tube and cutting the rod or tube at its mid-length |
| 12/13/1992 | CA2044379A1 Engine air shutdown valve |
| 12/08/1992 | US5169460 Engine valve of titanium alloy |
| 12/08/1992 | US5168843 Poppet valve for an internal combustion engine |
| 12/02/1992 | EP0515772A1 Valve drive for internal combustion engine cylinder head |
| 11/12/1992 | WO1992019851A2 Airtight two-phase heat-transfer systems |
| 10/28/1992 | EP0511032A1 Cylinder head for internal combustion engine |
| 10/15/1992 | DE4111381A1 Valve seat for internal combustion engine - has plastically deformable coating for running=in period |
| 10/15/1992 | CA2107570A1 Device in guide-bar power saw for cleaving a log, and method for using the device |
| 09/23/1992 | CN1018372B Simulating tester of double head strengthen wear between engine's air valve and seat |
| 09/17/1992 | DE4206231A1 Inlet valve with valve or valve seat vortex-creating profiles - has profiles formed flat to reduce flow resistance with valve fully open, and has valve opening after top dead centre |
| 09/09/1992 | CN1064339A Voice silencing valve for internal combustion engine |
| 09/08/1992 | US5144919 Two-stroke cycle reciprocating internal combustion engine for spark ignition and crankcase scavenging |
| 09/01/1992 | US5143351 Self-locking valve spring retainer |
| 09/01/1992 | US5143038 Internal combustion engine with delayed charging |
| 09/01/1992 | US5143027 Reed valves for two stroke engines |
| 08/25/1992 | US5140956 Valve guide relining sleeve |
| 08/06/1992 | WO1992013179A1 Valve with hard-facing |
| 07/29/1992 | EP0495975A1 Improved intake valve for internal combustion engine |
| 07/21/1992 | US5132587 Spark plug electrodes |
| 07/21/1992 | CA1305429C Internal combustion engine intake valve |
| 07/01/1992 | EP0493135A1 Internal combustion engines |
| 07/01/1992 | EP0492346A1 Internal combustion engine, especially Diesel engine |
| 06/30/1992 | US5126530 Method for producing hollow gas exchange valves for reciprocating engines |
| 06/30/1992 | US5125962 Self-lubricating valve seat rings |
| 05/19/1992 | US5114468 Cu-base sintered alloy |
| 05/13/1992 | CN2104299U Automatic assembly machine for nail three-piece |
| 05/12/1992 | US5112415 Engine valve stem as well as head portion of titanium alloy |
| 05/05/1992 | US5110142 Valve stem oil seal |
| 04/22/1992 | EP0481763A1 Sintered metal parts and their production method |
| 04/16/1992 | WO1992006283A1 Valve mechanism |
| 04/15/1992 | EP0480787A1 Internal combustion engine with a device for the insufflation of air into the exhaust conduit |
| 04/14/1992 | US5103867 Active reed valve |
| 04/14/1992 | US5103777 Fuel injection type multiple cylinder engine unit |
| 04/02/1992 | DE4029881A1 IC engine valve seat ring - avoids projecting into combustion chamber by mounting ring in cylinder head above chamber |
| 04/01/1992 | EP0478478A1 Process and apparatus for centering a guide pin a valve guide for precision machining of valve seats |
| 03/31/1992 | US5099808 Direct injection diesel engine induction system having vortical flow inducing induction valve |
| 03/25/1992 | EP0476511A1 Reed valve assembly |
| 03/17/1992 | US5096352 Diamond coated fasteners |