| Patents for F01L 1 - Valve-gear or valve arrangements, e.g. lift-valve gear (30,520) |
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| 12/02/1993 | DE4218081A1 Displaceable divided piston for changing rotary position of shaft in engine - has support part and end piece each with prefab. inclined gearing sections to form gearing pairs with adjoining components |
| 12/01/1993 | EP0572112A1 Shim attaching/detaching tool for engine tappet |
| 12/01/1993 | EP0571472A1 Hydraulic system. |
| 11/25/1993 | WO1993023656A1 Variable camshaft adjustment with proportional position regulator |
| 11/25/1993 | DE4316877A1 Sound-proofed chain drive for torque converters and vehicle parts - has several sets of overlapping plates with inverted teeth connected by bolts and driven by multi-part chain wheel. |
| 11/25/1993 | DE4217026A1 Assembling IC engine valves with adjustable drive - uses valve play equaliser compressed by extra external force acting on drive part |
| 11/25/1993 | DE4216791A1 Variable Nockenwellenverstellung mit proportionalem Lageregler Variable valve timing with proportional position control |
| 11/24/1993 | EP0571039A1 Preassembled camshaft drive for internal combustion engines |
| 11/24/1993 | EP0571023A1 A timing variator |
| 11/24/1993 | EP0570963A1 A valve control system for a variable-timing internal combustion engine, particularly for an engine with several valves per cylinder |
| 11/24/1993 | EP0494938B1 Camshaft for multi-valve internal combustion engine |
| 11/23/1993 | US5263454 Engine for portable working machine |
| 11/23/1993 | US5263443 Hydraulic phaseshifter |
| 11/23/1993 | US5263442 Valve timing control apparatus |
| 11/23/1993 | US5263386 Roller cam follower guide |
| 11/23/1993 | US5263249 Lightweight composite camshaft, method of assembly |
| 11/18/1993 | DE4215151A1 Variable lift valve control system for IC engine - uses pusher inside tappet linked to toggle lever rod mechanism |
| 11/16/1993 | US5261370 Control system for internal combustion engines |
| 11/16/1993 | US5261361 Assembly for simultaneously actuating two valves of an internal combustion engine |
| 11/16/1993 | US5261360 Device for adjusting control times in a control device |
| 11/16/1993 | CA1324297C Four stroke internal combustion engine |
| 11/16/1993 | CA1324296C Valve operating system for internal combustion engines |
| 11/11/1993 | WO1993022549A1 Feeding method for compression ignition internal combustion engines |
| 11/11/1993 | WO1993022543A1 Drive for gas exchange valves, preferably inlet valves of reciprocating internal combustion engines |
| 11/11/1993 | WO1993022542A1 Direct acting hydraulic lash adjuster |
| 11/11/1993 | DE4313464A1 Camshaft arrangement with at least one de-activatable cam - involves cam being selectively coupled to or freed from camshaft by radially displaceable coupling bolt |
| 11/11/1993 | DE4215057A1 Camshaft for variable control of gas exchange valve in IC engine - has at least two parts with at least one cam divided along rotary axis and having run-in and run-out ramps |
| 11/11/1993 | DE4215053A1 Valve operation for at least two gas exchange valves in IC engine - involves at least one camshaft with normal valve control for exhaust valve with cam and closure spring and force control for inlet valve |
| 11/11/1993 | DE4215052A1 Desmodromic control of at least one gas exchange valve - works in engine with two camshafts each with opening and closure cams which commonly act on opening and closing levers |
| 11/11/1993 | DE4215051A1 Bearing for two camshafts in housing - has bearing cover of one slide bearing integral with screw-on bearing seat of second slide bearing to produce graduated dividing plane |
| 11/11/1993 | DE4215050A1 System for fitting rotary or swivel metal parts on shaft in combustion engines - provides rear cut sections in axially overlapping areas of parts for clip like connection with relatively low assembly forces |
| 11/11/1993 | DE4214839A1 Valve drive for IC engine - involves lift valve operated in opening direction by cam against force of pneumatic spring |
| 11/11/1993 | DE4214801A1 Reciprocating piston engine - has closable aperture on top face of cylinder head cover near adjusting screws for valve lifters |
| 11/11/1993 | DE4214800A1 Four-stroke cycle IC engine - has cylinder head contg. two inlet valves and two exhaust valves arranged in plane parallel to camshaft and operated by rocker levers |
| 11/11/1993 | CA2110803A1 Induction method for a compression-ignition internal combustion engine |
| 11/10/1993 | EP0568932A1 Desmodromic device for driving internal combustion engine valves |
| 11/10/1993 | EP0568931A1 Desmodromic drive acting on at least one valve |
| 11/10/1993 | EP0568527A1 Camshaft drive unit for a v-type internal-combustion engine. |
| 11/09/1993 | US5259346 Rocker arm of the cam-follower type for operating two valves |
| 11/09/1993 | CA1324041C Method and apparatus for continuous camlobe phasing |
| 11/03/1993 | EP0568157A1 Low-mass, direct-acting hydraulic valve-lifter |
| 11/03/1993 | EP0567552A1 A dual mode, phase shifting, cam engine |
| 11/03/1993 | EP0448560B1 Variable camshaft phasing mechanism |
| 11/02/1993 | US5257601 Adjustable rotary valve assembly for a combustion engine |
| 11/02/1993 | CA2094993A1 Low mass direct acting hydraulic valve lifter |
| 10/28/1993 | WO1993021427A1 Valve actuating mechanism for an internal combustion engine |
| 10/28/1993 | DE4213856A1 Valve drive for gas exchange valves in IC engines - has two tappets, which are coupled and uncoupled in cam base circle area |
| 10/28/1993 | DE4213855A1 Valve drive for intake valves of IC engine - has hydraulic tolerance compensation device between stroke transmission element and valve |
| 10/27/1993 | EP0567037A1 Air-cooled four-cycle engine |
| 10/27/1993 | EP0566845A1 Device for varying the angular position of a camshaft |
| 10/26/1993 | US5255650 Engine braking utilizing unit valve actuation |
| 10/26/1993 | US5255639 Integral EVT/cylinder head assembly with self-purging fluid flow |
| 10/26/1993 | CA1323533C Valve operating system for internal combustion engines |
| 10/21/1993 | DE4212844A1 Ventilbetätigungsmechanismus für eine Brennkraftmaschine A valve operating mechanism for an internal combustion engine |
| 10/20/1993 | EP0566526A1 Hydraulic valve tappet cup-like housing for internal combustion engines with overhead camshaft |
| 10/19/1993 | US5253622 Cam phase change mechanism |
| 10/19/1993 | US5253621 Valve control means |
| 10/19/1993 | US5253620 Internal combustion engine adjustable valve gear |
| 10/19/1993 | US5253619 Hydraulically powered actuator with pneumatic spring and hydraulic latching |
| 10/19/1993 | US5253546 Variable valve actuating apparatus |
| 10/19/1993 | US5253418 Method of forming tappet of the kind having ceramic seat plate |
| 10/14/1993 | WO1993020337A1 Lost motion actuator |
| 10/14/1993 | DE4307715A1 Timing gear with piston head valves for 4-stroke engine - valves are actuated by valve lifters with rollers moving in groove of plate cam |
| 10/14/1993 | DE4213735A1 Timing gear with piston head valves for 4-stroke engine - uses control shaft with eccentric discs and spring- mounted legs to actuate valves |
| 10/14/1993 | DE4212263A1 Actuating gear for lifting valves in IC engine - has valve lifter shaft, which is longitudinally displaced to couple neighbouring valve lifters via switching elements |
| 10/14/1993 | DE4212110A1 Valve gear for Diesel engine - has two camshafts to actuate gas exchange valves and individual fuel injection valves |
| 10/14/1993 | DE4211632A1 Valve timing gear in IC engine - has transmission element with device for preset stroke adjustment of lifting valve |
| 10/14/1993 | DE4211589A1 IC engine with variable compression ratio - has conventional head and sliding cylinder within block displaced by hydraulically-operated sliders depending on load and rpm |
| 10/13/1993 | EP0564609A1 Hydraulic control device. |
| 10/12/1993 | US5251587 Valve lifter for engine |
| 10/12/1993 | US5251586 Valve mechanism for an internal combustion engine |
| 10/12/1993 | US5251585 Rocker arm |
| 10/12/1993 | US5251583 Intake apparatus for two cycle engine |
| 10/12/1993 | CA1322906C Low-friction, boat-type rocker arm |
| 10/12/1993 | CA1322905C Rocker arm of the cam-follower type with ribs |
| 10/07/1993 | DE4210746A1 Four=stroke IC-engine - has cylinder liner, to replace intake or exhaust valve, with turned collar, subjected to hydraulic flow for displacement |
| 10/07/1993 | DE4210742A1 Hydraulic controller of relative rotation of camshaft and sprocket - incorporates radial piston pump for positioning of double-acting piston under pressure of fluid supplied through EM valve |
| 10/07/1993 | DE4210580A1 Hydraulically powered cam timing adjustment for IC engines - has radial hydraulic clamping element operated by fluid from built=in radial piston pump and electronically controlled |
| 10/06/1993 | EP0563715A2 Oxyalkynes, pharmaceutical compositions containing same as well as a process for the preparation of these compounds and pharmaceutical compositions |
| 10/06/1993 | EP0563574A2 Valve-moving apparatus for internal combustion engine |
| 10/06/1993 | EP0563545A1 Process for manufacturing camshaft with remelt-quenched cams |
| 10/06/1993 | EP0563377A1 Mechanism for conversion of rotary motion of shaft into translational motion of executing members |
| 10/05/1993 | US5249554 Amorphous hydrogenated carbon film for internal combustion engine |
| 09/30/1993 | WO1993019286A1 Cup tappet with hydraulic valve clearance compensation |
| 09/30/1993 | WO1993019285A1 Tappet with hydraulic valve clearance compensation |
| 09/30/1993 | DE4232836C1 Verfahren zur Regelung der stufenlosen Verstellung der Nockenspreizung Method for controlling the continuous variation of the camshaft phasing |
| 09/30/1993 | DE4210038A1 Speed dependent, hydraulic camshaft adjustment for IC engine - has pump with supply volume controlled by motor between camshaft and drive via hydraulic operating chamber |
| 09/30/1993 | DE4209792A1 Hydraulic mechanical drive for IC camshaft adjustment - employs motor driven pump to move coupling element against spring for engagement of sets of inclined gear teeth |
| 09/30/1993 | DE4209442A1 Stößel mit hydraulischem Ventilspielausgleich Tappet with hydraulic valve clearance compensation |
| 09/30/1993 | DE4209440A1 Tassenstößel mit hydraulischem Ventilspielausgleich Tappets with hydraulic valve clearance compensation |
| 09/29/1993 | EP0562561A1 Valve moving apparatus for internal combustion engine and method therefor |
| 09/29/1993 | EP0562286A1 Exhaust valve control device for engine braking |
| 09/28/1993 | US5247914 Intake- and/or exhaust-valve timing control system for internal combustion engines |
| 09/28/1993 | US5247913 Variable valve for internal combustion engine |
| 09/28/1993 | US5247737 Camshaft holding and installation method |
| 09/28/1993 | CA2076943A1 Tensioner for belts or chains |
| 09/28/1993 | CA1322499C Adjustable lash valve train for overhead valve engine |
| 09/23/1993 | DE4306360A1 Drive belt, for IC-engine camshaft tensioner |
| 09/23/1993 | DE4209245A1 Self-adjusting cup tappet for vehicle IC engine - has pressure piston formed by spring covered with elastomer material |
| 09/23/1993 | DE4208608A1 V-8 IC engine for vehicle - uses pair of inlet valve cam shafts each divided into two sections |