| Patents for F01L 1 - Valve-gear or valve arrangements, e.g. lift-valve gear (30,520) |
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| 04/07/1993 | EP0535275A1 Electro/hydraulic variable valve timing system |
| 04/06/1993 | US5199403 Air fuel ratio control system for variable valve timing type internal combustion engines |
| 04/06/1993 | US5199393 Timing apparatus for a four-stroke engine with camshafts running at differentiated angular rotation |
| 04/06/1993 | CA1315622C Method of making low friction finger follower rocker arms |
| 04/06/1993 | CA1315621C Non-rotative roller tappet arrangement for internal combustion engines |
| 04/01/1993 | WO1993006344A1 Cup tappet |
| 04/01/1993 | DE4230877A1 Control for lift valve with two cams - comprises cam block containing two cams which is axially displaceable but non rotatable peripherally on camshaft |
| 04/01/1993 | DE4228214A1 Drive lever for piezoelectric powered valve - has shaped lever attached to mounting strip by weakened bridge of low density material. |
| 04/01/1993 | DE4132500A1 Cylinder-head valve with variable timing for IC engine - has sprung coupling to camshaft with hydraulic system with control valves to shorten cylinder valve timing. |
| 03/30/1993 | US5197434 I.c. engines |
| 03/30/1993 | US5197427 Accessory drive device for an internal combustion engine |
| 03/30/1993 | US5197421 Valve timing control apparatus |
| 03/30/1993 | US5197420 Camshaft adjuster and tensioner |
| 03/30/1993 | US5197419 Internal combustion engine hydraulic actuated and variable valve timing device |
| 03/30/1993 | US5197351 Cam shaft and process for manufacturing the same |
| 03/25/1993 | DE4131696A1 Hydraulic cup tappet for internal combustion engine valve drive - has cup-shaped housing in which is fitted play compensation element arranged concentrically in guide tube |
| 03/25/1993 | DE4131487A1 Tassenstoessel Tassenstoessel |
| 03/24/1993 | EP0533474A2 Method of controlling an internal combustion engine |
| 03/23/1993 | US5195475 Rocker arm assembly |
| 03/23/1993 | US5195472 Cylinder head |
| 03/23/1993 | US5195471 Valve timing control system of internal combustion engine |
| 03/23/1993 | US5195239 Method for assembling shafts |
| 03/18/1993 | WO1993005302A1 Hydraulic controlling device |
| 03/18/1993 | WO1993005280A1 Device for adjusting the force exerted by a valve spring |
| 03/18/1993 | WO1993005279A1 Engines rotary valves |
| 03/18/1993 | WO1993005277A1 Roller tappet |
| 03/18/1993 | DE4233798A1 Cam shaft system to operate valve in e.g. engines - has shaft with cams, to regulate valve opening and closing movement and has control unit enclosing shaft |
| 03/18/1993 | DE4130529A1 Hydraulic tappet with cup-shaped housing - has sealing membrane in two layers between housing and clearance compensating unit |
| 03/17/1993 | EP0532377A1 Positionning device for the camshaft of an internal combustion engine and camshaft using this device |
| 03/17/1993 | EP0532294A1 Directly acting hydraulic tappet body having an outer oil reservoir |
| 03/17/1993 | EP0532214A1 Control mechanism for engine valve timing |
| 03/16/1993 | US5193498 Hydraulic tensioner having integrally formed mounting plate and gasket |
| 03/16/1993 | US5193497 Valve arrangement |
| 03/16/1993 | US5193496 Variable action arrangement for a lift valve |
| 03/16/1993 | US5193494 Valve operating system for internal combustion engine |
| 03/16/1993 | US5193493 Internal combustion engine with piston valving |
| 03/16/1993 | CA1314450C Valve operating system for internal combustion engine |
| 03/11/1993 | DE4129637A1 Einrichtung zur aenderung der federkraft einer ventilfeder Means for changing the spring force of a valve spring |
| 03/04/1993 | WO1993005278A1 Valve actuation device |
| 03/04/1993 | DE4227392A1 Actuation method for IC engine valve - uses defined concave transfer section of support profile for cam |
| 03/04/1993 | DE4129036A1 Valve mechanism for IC engine - has light metal housing and actuation shaft working with spring-loaded pin |
| 03/04/1993 | DE4128813A1 Hydraulischer rollenstoessel Hydraulic ROLLER |
| 03/04/1993 | DE4128656A1 Hydraulische stelleinrichtung Hydraulic adjustment device |
| 03/04/1993 | DE4128209A1 Diesel engine with direct injection - has four-valve block cylinder head, with parallel injection valves, intake valves, and discharge valves |
| 03/04/1993 | CA2090328A1 Valve actuation device |
| 03/03/1993 | EP0529642A2 Internal combustion engine with air assist fuel injection control system |
| 03/03/1993 | EP0529639A1 Internal combustion engine with supercharger |
| 03/03/1993 | EP0529638A1 Reciprocating engine of a spark ignition type |
| 03/02/1993 | US5190262 Hydraulically-operated valve assembly |
| 03/02/1993 | US5190000 For an internal combustion engine |
| 03/02/1993 | US5189999 Device for adjusting the relative angle of rotation of a shaft to a drive wheel, especially the camshaft of an internal combustion engine |
| 03/02/1993 | US5189998 Valve mechanism of internal combustion engine |
| 03/02/1993 | US5189997 Internal-combustion engine comprising a rocker lever valve gear |
| 03/01/1993 | WO1993005287A1 Modified cylinder head |
| 03/01/1993 | CA2087858A1 Modified cylinder head |
| 02/25/1993 | DE4127327A1 Vehicle hydraulic system with directly driven pump |
| 02/25/1993 | DE4119594A1 Fluid-cooled light alloy cylinder head - has lower section with open cooling fluid chambers, in area of cylinder head dome |
| 02/24/1993 | EP0527970A1 Device for actuating the valves of a reciprocating piston engine |
| 02/23/1993 | US5188068 For internal combustion engine |
| 02/23/1993 | US5188067 Adjustable valve system for an internal combustion engine |
| 02/23/1993 | US5187935 Engine control device |
| 02/18/1993 | WO1993003268A1 Method of controlling engine |
| 02/18/1993 | WO1993003261A1 A cam device with a shape being deformable and/or removable by means of a fluid under pressure for varying the phasing of engine valves |
| 02/18/1993 | WO1993003259A1 Hydraulic cup-tappet |
| 02/16/1993 | US5186130 Camshaft control device |
| 02/16/1993 | US5186129 Intermittent oiling system for an internal combustion engine camshaft and valve train |
| 02/16/1993 | US5186128 For use in an engine |
| 02/16/1993 | US5185923 Method of making a frictionally sliding component |
| 02/09/1993 | US5184583 Light metal tappet with wear-resistant armouring made of a steel with an austenitic matrix |
| 02/09/1993 | US5184581 Valve timing retarding system |
| 02/09/1993 | US5184580 Timing system for an internal combustion engine |
| 02/09/1993 | US5184579 Cylinder head structure of internal combustion engine |
| 02/09/1993 | US5184578 VCT system having robust closed loop control employing dual loop approach having hydraulic pilot stage with a PWM solenoid |
| 02/09/1993 | US5184401 Method of assembling valve drive mechanism to engine |
| 02/04/1993 | DE4201478C1 Method for installing cams on shaft - has cam held by clamps onto hollow camshaft which is expanded under pressure to engage cam |
| 02/04/1993 | DE4125568A1 Hydraulischer tassenstoessel Hydraulic tassenstoessel |
| 02/03/1993 | EP0526309A1 Fuel-injection internal combustion engine |
| 02/03/1993 | EP0525597A1 Air-fuel ratio control system for variable valve timing type internal combustion engines |
| 02/03/1993 | EP0525284A1 Hydraulic valve lash adjuster for internal combustion engine |
| 02/02/1993 | US5183016 For an internal combustion engine |
| 02/02/1993 | US5183015 Valve operating apparatus |
| 01/28/1993 | DE4133735C1 Valve gear for IC engine - has arm of varying effective length between bearing axis and cam contact surface |
| 01/28/1993 | DE4124305A1 Valve drive, esp. intake valve, for IC engine - has cams, positioned mirror-fashion on camshaft and levers, moved together in opposite direction by pressure medium |
| 01/27/1993 | EP0524664A2 Valve operating apparatus in an internal combustion engine |
| 01/27/1993 | EP0524314A1 Valve mechanism in internal combustion engine |
| 01/26/1993 | US5181691 Mechanical part made of ceramics |
| 01/26/1993 | US5181486 Timing-range gear |
| 01/26/1993 | US5181485 Valve driving mechanism for double overhead camshaft engine |
| 01/26/1993 | US5181484 Cam timing control device for automotive engine |
| 01/26/1993 | US5181432 Timing gear having different keyways |
| 01/26/1993 | CA1313091C Valve operating apparatus for an internal combustion engine |
| 01/21/1993 | WO1993001402A1 Multicylinder two stroke cycle engine |
| 01/21/1993 | DE4124184A1 Hydraulic valve cup lifter - has axially adjustable sleeve co-axial with plunger and cup, and one or more bores lockable by cup |
| 01/21/1993 | CA2110581A1 Multicylinder two stroke cycle engine |
| 01/20/1993 | EP0523691A2 Ceramic adjusting shim |
| 01/19/1993 | US5179918 Timing-range gear |
| 01/13/1993 | EP0522452A1 Method of load control at a reciprocating piston internal combustion engine and internal combustion engine |
| 01/12/1993 | US5178108 Camshaft drive for an automotive engine |
| 01/12/1993 | US5178107 Valve lifter |
| 01/12/1993 | US5178106 Valve timing control apparatus |