| Patents for F01L 1 - Valve-gear or valve arrangements, e.g. lift-valve gear (30,520) |
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| 09/23/1993 | DE4208607A1 Valve actuation system for vehicle combustion engine - has drag lever mounted on eccentric ring with pressure chamber |
| 09/23/1993 | DE4208335A1 Valve play adjustment mechanism for vehicle IC engine - has valve gauge built as measuring device to indicate variations from optimal setting |
| 09/22/1993 | EP0560812A1 Device for the simultaneous operation of two cylinder head valves in an internal combustion engine. |
| 09/21/1993 | US5246215 Spring seat member with notch for ground spring end |
| 09/21/1993 | US5245968 System to determine cam phase and cylinder identification for a variable cam timing engine |
| 09/21/1993 | US5245958 Direct acting hydraulic valve lifter |
| 09/21/1993 | US5245957 Spring assist system for internal combustion engine valves |
| 09/21/1993 | US5245888 Camshaft for internal combustion engines |
| 09/21/1993 | CA1322284C Molded camshaft assembly |
| 09/16/1993 | WO1993018284A1 Cylinder head for an internal combustion engine |
| 09/16/1993 | WO1993018281A1 Rocker arm assembly |
| 09/16/1993 | DE4207979A1 IC engine valve rotation mechanism - uses flow of lubricant to turn one gear disc meshed with two other discs. |
| 09/16/1993 | DE4207741A1 Geometric design process for valve and fuel injection pumps - has curve formed by series of segments with different curvatures that are combined with transfer segments |
| 09/16/1993 | DE4207494A1 Camshaft for IC engine allowing cutting out of valve - incorporates eccentric sleeve mounted on camshaft to support cam. |
| 09/15/1993 | EP0560701A1 Internal combustion engine with adjustable compression ratio and mass of the fly wheel |
| 09/15/1993 | EP0560402A1 Automotive internal combustion engine |
| 09/15/1993 | EP0560323A1 Multi-cylinder internal combustion engine |
| 09/14/1993 | US5244438 Tension for belts or chains |
| 09/14/1993 | US5243935 Valve opening and closing timing control apparatus |
| 09/09/1993 | DE4206898A1 Variable stroke control for IC engine valve - has cam running surface spring-loaded against adjustable support bar to give flexing action |
| 09/08/1993 | EP0559199A1 Valve-moving apparatus for internal combustion engine |
| 09/08/1993 | EP0559098A2 Engine control system and method |
| 09/07/1993 | US5241928 Movable valve device for engine |
| 09/07/1993 | US5241927 Internal combustion engine with different exhaust and intake valve operating characteristics |
| 09/06/1993 | CA2062321A1 Rocker arm assembly |
| 09/02/1993 | WO1993017230A1 Control device for an engine having variable suction and exhaust valve mechanism and controlling method therefor |
| 09/02/1993 | WO1993017227A1 Valve actuating mechanism for an internal combustion engine |
| 09/02/1993 | WO1993017226A1 Variable timing gear device |
| 09/02/1993 | DE4205886A1 Fuel injection pump for IC engine - incorporates trailing cam surface shaped as convex arc |
| 09/01/1993 | EP0558200A1 Camshaft phase change device |
| 09/01/1993 | EP0558199A1 Camshaft phase change device |
| 09/01/1993 | EP0558198A1 Camshaft phase change device |
| 08/31/1993 | US5239953 Hydraulic tappet for an internal combustion engine |
| 08/31/1993 | US5239952 Valve actuating apparatus |
| 08/31/1993 | US5239951 Valve lifter |
| 08/31/1993 | US5239885 Camshaft with a deactivatable cam |
| 08/26/1993 | DE4205505A1 Adjustable camshaft drive for IC engine - has identical angular adjustment, dependent upon engine load for identical camshafts |
| 08/26/1993 | DE4205294A1 Double-stroke timing gear for IC engine valves - has eccentric cam, moving along eccentric cam path so that cam and cam path stroke cause valve stroke |
| 08/26/1993 | DE4205230A1 Ventilbetaetigungsmechanismus fuer eine brennkraftmaschine Ventilbetaetigungsmechanismus for an internal combustion engine |
| 08/25/1993 | EP0556524A1 Valve drive with means for preventing rotational motion of the valve |
| 08/25/1993 | EP0394328B1 Automatic clearance adjuster |
| 08/24/1993 | US5237974 Triple-intake-valve internal combustion engine |
| 08/24/1993 | US5237968 Apparatus for adjustably controlling valve movement and fuel injection |
| 08/24/1993 | US5237967 Powertrain component with amorphous hydrogenated carbon film |
| 08/19/1993 | DE4302781A1 Lever to actuate valves in IC engines - has central round passage in pivot direction, and H- shaped sections on either side |
| 08/19/1993 | DE4223172C1 Cylinder head for IC engine - bearing cover for cam shaft bearing also acts for bearing for eccentric shaft |
| 08/18/1993 | EP0555521A1 Hydraulic valve tappet |
| 08/18/1993 | EP0555415A1 Valve actuation device |
| 08/18/1993 | EP0555228A1 Modified cylinder head. |
| 08/17/1993 | US5236332 Method of controlling an internal combustion engine |
| 08/17/1993 | US5236274 Installation of wear-resistant chip on mechanical part |
| 08/17/1993 | US5235942 Cylinder head assembly |
| 08/17/1993 | US5235941 Actuator for camshaft phase change device |
| 08/17/1993 | US5235940 Engine valve driving apparatus |
| 08/17/1993 | US5235939 Automotive engine torsional pulse enhancer |
| 08/17/1993 | CA1321328C Valve mechanism lubrication system for horizontal cylinder overhead valve engine |
| 08/11/1993 | EP0554923A1 Resilient hydraulic actuator |
| 08/10/1993 | US5234088 Phase change device with splitter spring |
| 08/10/1993 | US5233950 Valve operating system for internal combustion engine |
| 08/05/1993 | WO1993015308A1 Tappet with hydraulic compensation of valve clearance and free piston |
| 08/05/1993 | DE4302732A1 Valve actuation control system for IC engine - uses hydraulic pressure to control phase difference between camshaft and crankshaft. |
| 08/05/1993 | DE4238861A1 Arrangement for measuring position of axially moving body eg valve shaft - has film of complex composition on body influencing inductance of measurement coil arrangement |
| 08/04/1993 | EP0518898B1 Drive arrangement for a camshaft |
| 08/03/1993 | US5231961 Camshaft and accessory drive arrangement for engine |
| 08/03/1993 | US5231960 Method and appparatus for varying intake and exhaust valve opening and closing in a reciprocating piston engine |
| 07/29/1993 | DE4201618A1 Stoessel mit hydraulischem ventilspielausgleich und leerhubkolben Stoessel with hydraulic valve clearance compensation and idle stroke piston |
| 07/28/1993 | EP0552369A1 Hydraulic lash adjuster with air vent |
| 07/27/1993 | US5230382 Process of producing individual eccentric cams from cast metal |
| 07/27/1993 | US5230320 Intake and exhaust control system for automobile engine |
| 07/27/1993 | US5230317 Single overhead cam multi-valve engine |
| 07/27/1993 | US5230315 Otto-cycle engine |
| 07/27/1993 | US5230312 Two-stroke engine |
| 07/27/1993 | US5230310 Combustion chamber of internal combustion engine |
| 07/27/1993 | US5230308 Low mass direct acting hydraulic valve lifter |
| 07/22/1993 | WO1993014339A1 Engine valve seating velocity hydraulic snubber |
| 07/22/1993 | WO1993014302A1 Device for adjusting the angular position of a driven shaft with respect to a drive shaft |
| 07/22/1993 | WO1993014301A1 Roller rocker arm and process for manufacturing the same |
| 07/22/1993 | DE4242634A1 Combustion engine valve control mechanism - has gear and worm drive between engine crankshaft and cam shafts, gear drive having conical wheels and worm drive slidable along own axis |
| 07/22/1993 | DE4201251A1 Gear driven camshaft for multicylinder IC engine - has enlarged dia. between end and intermediate bearing points to counteract bending |
| 07/22/1993 | DE4201034A1 Method for extracting valve seating rings from cylinder head - involves cutting circumferential inside groove in which tool can be hooked to allow application of purely axial force |
| 07/21/1993 | EP0551592A1 Camshaft drive for multi-cylinder internal combustion engine |
| 07/21/1993 | EP0551339A1 Improvements in or relating to driving connections between two rotatable bodies. |
| 07/21/1993 | EP0434704B1 Valve-controlled reciprocating piston internal combustion engine |
| 07/20/1993 | US5228423 Dual-fuel engine |
| 07/20/1993 | US5228422 Internal combustion engine and a method of operating same |
| 07/20/1993 | US5228419 Valve operating system for engine |
| 07/20/1993 | US5228418 Tappet for a valve in an internal combustion engine |
| 07/20/1993 | US5228417 Valve timing control system of internal combustion engine |
| 07/15/1993 | DE4225012C1 Hydraulic actuator for lifting valve with pressurised oil piston - has play compensation piston, located between working piston and valve, and loaded by compression spring |
| 07/15/1993 | DE4200510A1 Tappet for valve in IC engine - has toothed section engaging rack to move between two operating positions. |
| 07/14/1993 | EP0551207A2 Control system for internal combustion engines |
| 07/13/1993 | US5226389 Direct acting tappet |
| 07/08/1993 | WO1993013311A1 Automobile engine |
| 07/08/1993 | WO1993013306A1 Engine for automobile |
| 07/08/1993 | WO1993013301A1 Hydraulic control device |
| 07/08/1993 | WO1993013300A1 Engine valve seating velocity hydraulic snubber |
| 07/07/1993 | EP0549863A1 Cylinder head for internal combustion engine and a process of operating same |
| 07/07/1993 | EP0549641A1 Engine with push rod retention shelf |
| 07/01/1993 | DE4212253C1 Engine valve timing and stroke adjustment - has stroke control piston spring-loaded against valve in cylinder separate from rocker-supporting cylinder |
| 07/01/1993 | DE4143153A1 Hydraulische steuereinrichtung Hydraulic control device |