Patents for F01L 1 - Valve-gear or valve arrangements, e.g. lift-valve gear (30,520)
01/1992
01/14/1992US5080057 Cylinder head of an internal-combustion engine
01/14/1992US5080055 Variable valve timing arrangement for internal combustion engine
01/14/1992US5080054 Rocker arm arrangement for variable timing valve train
01/14/1992US5080053 Rotary drives
01/14/1992US5080052 Variable valve timing system in an engine having a rotating cam-shaft
01/14/1992CA1294154C Cast shafts, particularly camshafts
01/09/1992WO1992000441A1 Phase change mechanism
01/07/1992USRE33787 Four-cycle engine
01/07/1992US5078657 Belt tensioner
01/07/1992US5078647 Camshaft phase change device with roller clutches
01/07/1992US5078102 Engine valve driving device
01/07/1992US5077909 Method and apparatus for measuring valve stem wear
01/02/1992EP0463900A1 Lubrication system for the contacting surfaces of a camshaft and a hydraulic tappet for an internal combustion engine
01/02/1992EP0463023A1 Phase change mechanism.
01/02/1992DE4105233C1 Plastic housing lid esp. cylinder head lid for combustion engine - includes sealing surface, screw pipe and armouring section to increase stiffness
01/02/1992DE4040486A1 Camshaft adjuster - has opposing meshing gear tooth systems for controlled rotation of camshaft w.r.t. camshaft timing gear
12/1991
12/27/1991EP0462853A1 Variable amplitude device for the lift of at least one internal combustion engine valve
12/27/1991EP0462568A1 Timing system, particularly for an internal combustion engine with a number of valves per cylinder
12/24/1991US5074261 Rocker arm assembly
12/24/1991US5074260 Valve driving device and valve driving method for internal combustion engine
12/18/1991EP0462081A1 An automatic machine for force-fitting drilled, shaped elements onto a shaft
12/18/1991EP0461985A1 Valves disabling system for internal combustion engine
12/18/1991EP0461952A1 Camshaft arrangement in the cylinder head of an internal combustion engine
12/18/1991EP0461588A2 Intake apparatus for two cycle engine
12/18/1991EP0461587A2 Motorcycle
12/18/1991EP0461150A1 Actuating mechanisms.
12/17/1991US5072700 Electromagnetic valve control system
12/17/1991US5072613 Method for evaluation of fluid flow within a simulated combustion chamber
12/12/1991DE4118003A1 Cam shaft prodn. using sintered metal powder cam component
12/12/1991DE4018586A1 IC-engine with twin camshaft - has rocker arms mounted on pin aligned parallel to camshafts
12/12/1991DE4018065A1 Diesel IC engine - has three valves per cylinder with two inlet valves in diametrically opposite positions
12/11/1991EP0460988A1 Drive mechanism having a camshaft and force transmission means with roller
12/11/1991EP0460728A1 Intake port pressure control apparatus for engine induction system
12/11/1991CN2090422U Piston type crankless two-strok ic engine
12/10/1991US5070834 Diesel engine with a precombustion chamber
12/10/1991US5070827 Low mass valve lifters
12/10/1991US5070824 Combustion chamber and valve operating mechanism for multi-valve engine
12/05/1991DE4017239A1 Camshaft with several bearing discs and cams
12/04/1991EP0459848A1 Improvements in two-stroke internal combustion engine of the reciprocating piston type
12/04/1991EP0459539A2 Valve actuating mechanism for internal combustion engines
12/04/1991EP0459466A1 Camshaft
12/03/1991US5069173 Push rod having irregularly shaped internal bore
11/1991
11/28/1991WO1991018189A1 Tappets
11/28/1991DE4017048A1 Twin overhead camshafts for IC engine - has common bearing of both shafts
11/27/1991EP0458341A1 Cylinder head structure of DOHC engine
11/27/1991EP0457757A1 Device for varying the angular relationship between the crankshaft and the camshaft of an internal combustion engine.
11/26/1991US5067450 Variable valve timing system having rotational vibration damping
11/26/1991US5067369 Ceramic camshaft
11/21/1991EP0457113A1 Valve rotating apparatus of internal-combustion engine
11/21/1991DE4016226A1 Valve control for IC engine - reduces exhaust gas emissions by means of variable timing for valve drive
11/21/1991DE4016161A1 Valve activating gear for IC engine - has valve springs made from synthetic resin which act as torsion springs
11/21/1991DE4015719A1 Valve play compensating mechanism - has cam which actuates cap which houses plunger which actuates valve
11/19/1991US5065720 Engine with mechanical governor and decompression device
11/19/1991US5065709 Valve operating system for internal combustion engine
11/14/1991DE4014578A1 Cupped tappet insert for IC engine - single piece insert provides guide bush and baseplate with simple construction and reduced oil leakage
11/13/1991EP0456618A1 An internal combustion engine with a tensioner for the transmission chain between two overhead camshafts
11/13/1991EP0456417A1 Electromagnetic brake for a camshaft phase change device
11/13/1991EP0455763A1 Hydraulic control device for the valves of a multi-cylinder internal-combustion engine.
11/12/1991US5064608 Camshaft and method for producing the same
11/12/1991US5063895 Oil pump drive arrangement for a piston internal-combustion engine and method of making same
11/12/1991US5063889 Rocker arm with lubrication provisions
11/06/1991EP0454941A1 Method and device for modifying engine valve timing
11/06/1991EP0454895A2 Engine valve cover gasket with electrical bridge
10/1991
10/31/1991WO1991014082A3 Drive arrangement for a camshaft
10/30/1991EP0454518A1 Control device for two adjacent valves
10/30/1991EP0375742B1 Hydraulic engine valve lifter assembly
10/29/1991US5060616 Intake system for multiple-valve engine
10/29/1991US5060607 Tappet structure
10/29/1991US5060606 Rocker arm
10/29/1991US5060605 Valve drive mechanism for vehicle engine
10/29/1991US5060604 Method of detecting failure of a valve timing changeover control system of an internal combustion engine
10/24/1991DE4112204A1 Variable valve control system for 4-stroke engine - uses mechanism embodying control roller and take=up fork
10/24/1991DE4108454A1 Four stroke IC engine with knock sensor - adjusts timing of engine inlet valves upon detection of pinking
10/23/1991EP0453416A1 Motor-vehicle internal combustion engine with differentially opened valves
10/23/1991EP0452671A2 Valve actuating mechanism in four-stroke cycle engine
10/22/1991US5059040 Unit for installing a roller bearing
10/22/1991US5058541 Valve operating system of internal combustion engine
10/22/1991US5058540 Engine valve driving device
10/22/1991US5058539 Valve timing adjusting system for internal combustion engine
10/22/1991US5058458 Camshaft driving mechanism
10/22/1991US5058255 Cam shaft bushing puller
10/16/1991EP0452158A1 SOHC type internal combustion engine
10/15/1991US5056486 Combustion engine
10/15/1991US5056479 Valve timing control device for internal combustion engine
10/15/1991US5056478 Variable camshaft phasing mechanism
10/15/1991US5056477 Apparatus for adjusting a rotational angular relationship between a camshaft and its drive element
10/15/1991CA1290634C Engine valve train module
10/15/1991CA1290596C Tubular camshaft assemblies, method and apparatus
10/15/1991CA1290563C Method and apparatus for securing parts to a hollow member
10/14/1991WO1991016527A1 Valve mechanism in internal combustion engine
10/09/1991EP0450332A1 Valve actuating mechanism in four-stroke cycle engine
10/08/1991US5054440 Cam follower device for valve driving mechanism in engine
10/08/1991US5054182 Assembly device for assembling camshafts
10/02/1991EP0449566A1 Partially hardened sintered body and method of manufacturing same
10/02/1991EP0448560A1 Variable camshaft phasing mechanism.
10/01/1991US5052845 Multi-layer shaft
10/01/1991US5052352 Mechanical part made of ceramics
10/01/1991US5052351 Double overhead camshaft bearing structure
10/01/1991US5052350 Device to combine the motions of two camlobes differentially phased
10/01/1991CA1289828C Valve operating mechanism for internal combustion engine