| Patents for F01L 1 - Valve-gear or valve arrangements, e.g. lift-valve gear (30,520) |
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| 06/30/1993 | EP0548170A1 Internal combustion engine having variable event valve timing. |
| 06/29/1993 | US5223812 Adjusting device for gas exchange valves |
| 06/29/1993 | US5222465 Valve timing control system for engine |
| 06/23/1993 | EP0547653A1 Self-contained hydraulic lash-adjuster with pressurizing diaphragm |
| 06/22/1993 | US5221072 Resilient hydraulic actuator |
| 06/22/1993 | US5220899 Internal combustion engine with air assist fuel injection control system |
| 06/22/1993 | US5220891 Variable cam engine |
| 06/22/1993 | US5220853 Cam shaft support apparatus for an engine |
| 06/17/1993 | DE4141265A1 Gear drive for IC piston engines - has secondary shafts with torsion vibration dampener and/or secondary masses |
| 06/16/1993 | EP0546820A1 Valve operating system in internal combustion engine |
| 06/16/1993 | EP0545979A1 Hydraulic valve tappet for an internal-combustion engine. |
| 06/16/1993 | CN2136331Y Ic engine |
| 06/15/1993 | US5219313 Camshaft phase change device |
| 06/15/1993 | US5218935 VCT system having closed loop control employing spool valve actuated by a stepper motor |
| 06/15/1993 | US5218883 Assembled shaft and process for production thereof |
| 06/09/1993 | EP0500622B1 Drive arrangement for a camshaft fitted in the cylinder head of an internal combustion engine |
| 06/09/1993 | EP0500540B1 Device for adjusting the relative angle of rotation of a shaft to a drive wheel, especially the camshaft of an internal combustion engine |
| 06/09/1993 | DE4139787A1 Desmodromic cam system for IC engine - uses grooves in cams which serve as both opening and closure element over cam profile path for improved operation. |
| 06/08/1993 | US5216989 Apparatus for driving various devices by internal combustion engine |
| 06/08/1993 | US5216988 Dual bucket hydraulic actuator |
| 06/08/1993 | US5216984 V-type internal combustion engine with improved water pump driving arrangement |
| 06/03/1993 | DE4239986A1 Valve timing control system for IC engine |
| 06/03/1993 | DE4138995A1 Tappet with hydraulic valve play compensation - has guide and tappet sleeves with design such that compensation element is lightly supported |
| 06/01/1993 | US5215048 Camshaft for multi-valve internal combustion engine |
| 06/01/1993 | US5215047 Seal assembly |
| 06/01/1993 | US5215046 Rotational phase difference adjusting means |
| 06/01/1993 | CA1318556C Potential-magnetic energy driven valve mechanism |
| 05/27/1993 | WO1993010336A1 Camshaft for internal combustion engines |
| 05/27/1993 | DE4140945A1 Assembly tool for ring wedge fasteners - consists of pliers with angled legs carrying shells to form ring for ring wedge |
| 05/26/1993 | EP0543210A1 Engine comprising a continuous braking device, particularly for an industrial vehicle |
| 05/26/1993 | EP0389609B1 Device for actuating the valves of internal combustion engines with adjustable valve-lifting cam |
| 05/26/1993 | CN1072473A Push rod of internal combustion engine |
| 05/25/1993 | US5213074 Lubricating device of four-stroke cycle engine unit for portable working machine |
| 05/25/1993 | US5213073 Cylinder head of an internal combustion engine |
| 05/25/1993 | US5213072 Valve actuating mechanism in the cylinder head of a combustion engine |
| 05/25/1993 | US5213071 Support structure for cam shafts |
| 05/25/1993 | US5213070 Two-cycle internal combustion engine with sequential exhaust valve openings |
| 05/19/1993 | DE4236877A1 Control of exhaust and inlet valves of multi-valve IC engine - involves two load exchange valves for each cylinder with individual cam per valve on common camshaft |
| 05/19/1993 | CN1072243A 二冲程发动机 Two-stroke engines |
| 05/19/1993 | CN1072240A Valveless automatic gap adjustment device for engine |
| 05/18/1993 | US5211143 Adjustable valve system for an internal combustion engine |
| 05/18/1993 | US5211141 Drive arrangement for a camshaft fitted in the cylinder head of an internal combustion engine |
| 05/18/1993 | CA1317767C Roundness processing method and its device for slipper surface of rocker arm |
| 05/13/1993 | DE4136746A1 Hydraulic tappet used in IC engine - has membranes actuated by piston to hold fluid volume constant |
| 05/12/1993 | EP0541131A1 Multi-valve internal combustion engine |
| 05/12/1993 | EP0541080A1 A two-stroke engine |
| 05/11/1993 | US5209202 Method of operating an internal combustion engine |
| 05/11/1993 | US5209201 Internal combustion engine |
| 05/11/1993 | US5209194 Variable valve timing apparatus |
| 05/11/1993 | US5209193 Intake- and/or exhaust-valve timing control system for internal combustion engines |
| 05/06/1993 | DE4235103A1 Camshaft valve control mechanism for IC engine - has inlet and outlet valves inclined from vertical to optimise gas mixture delivery |
| 05/06/1993 | DE4136286A1 Hydraulic drive for movement control of incrementally variable camshaft adjustment - adjusts relative rotary angle between camshaft and drive wheel and uses pump and valve arrangement |
| 05/06/1993 | DE4136143A1 Valve control mechanism for IC engine - has combination of two rocker arms which can be positively joined by locking lever |
| 05/05/1993 | EP0539539A1 Device for adjusting the angle of rotation between a camshaft and its drive. |
| 05/05/1993 | EP0539538A1 Device for adjusting the angle of rotation between a camshaft and its drive. |
| 05/05/1993 | CN2131983Y Harmonic phase regulator for variable cam of distribution machinery |
| 05/05/1993 | CN1071733A Device for hydraulically actuating outlet valve of reciprocating internal combustion engine |
| 05/04/1993 | US5207210 Cylinder head structure of an internal combustion engine |
| 05/04/1993 | US5207197 Cylinder head for a multi-cylinder internal combustion engine |
| 05/04/1993 | US5207193 Valve operating system in internal combustion engine |
| 05/04/1993 | US5207192 Variable camshaft timing system utilizing square-edged spool valve |
| 05/04/1993 | US5207191 Boat-type rocker arm with stiffening member |
| 04/29/1993 | WO1993008380A1 Hydraulic control device |
| 04/29/1993 | WO1993008379A1 Hydraulic control device |
| 04/29/1993 | WO1993008378A1 Hydraulic control device |
| 04/29/1993 | WO1993008377A1 Device for actuating the valves in an internal-combustion engine by means of rotating cams |
| 04/29/1993 | DE4135380A1 Hydraulische steuereinrichtung Hydraulic control device |
| 04/29/1993 | DE4135378A1 Hydraulische steuereinrichtung Hydraulic control device |
| 04/29/1993 | DE4135377A1 Hydraulische steuereinrichtung Hydraulic control device |
| 04/29/1993 | DE4135257A1 Device for operating valves in internal combustion engine |
| 04/28/1993 | EP0539320A1 Device for hydraulically operating an exhaust valve of an internal combustion piston engine |
| 04/28/1993 | EP0538508A1 Pressure oil supply for the variable valve control of an internal combustion engine |
| 04/27/1993 | US5205259 Modified cylinder head |
| 04/27/1993 | US5205251 Rotary valve for internal combustion engine |
| 04/27/1993 | US5205249 Variable camshaft timing system for internal combustion engine utilizing flywheel energy for reduced camshaft torsionals |
| 04/27/1993 | US5205248 Intake- and/or exhaust-valve timing control system for internal combustion engines |
| 04/27/1993 | US5205247 Infinitely variable lift cam follower with consistent dwell position |
| 04/27/1993 | US5205246 Economy engine |
| 04/27/1993 | US5205188 Friction pairing and process for its production |
| 04/27/1993 | US5205187 Hollow shaft |
| 04/22/1993 | DE4134706A1 Two-stage piston engine - has cylinders/pistons with two sections of different diameters, single rotation of piston shaft results in two simultaneous working strokes |
| 04/20/1993 | US5203535 Cam actuated valve assembly with hydraulic spring |
| 04/20/1993 | US5203291 Valve timing control system for internal combustion engine |
| 04/20/1993 | US5203290 Intake and/or exhaust-valve timing control sytem for internal combustion engine |
| 04/20/1993 | US5203289 Variable timing mechanism |
| 04/20/1993 | CA1316419C Valve operating mechanism for internal combustion engine |
| 04/17/1993 | CA2080602A1 Cylinder head for internal combustion engine and a process of operating same |
| 04/15/1993 | WO1993007362A1 Hydraulic control device |
| 04/15/1993 | DE4133526A1 Hydraulische stelleinrichtung Hydraulic adjustment device |
| 04/15/1993 | DE4133408A1 Valve timing adjuster for IC-engine camshaft - has web, enclosing planet wheels on outer circumference |
| 04/15/1993 | DE4133271A1 Cylinder head for IC engine with timing gear - has additional valves or slides, in intake and discharge channels |
| 04/14/1993 | EP0536513A1 Valve operating system for internal combustion engine |
| 04/14/1993 | EP0536237A1 Phase change mechanism. |
| 04/13/1993 | US5201289 Valve timing control system for internal combustion engine |
| 04/13/1993 | US5201286 Two-stroke cycle internal combustion engine |
| 04/13/1993 | US5201247 Assembled shaft and process for production thereof |
| 04/13/1993 | US5201246 Lightweight composite camshaft |
| 04/08/1993 | DE4211631A1 Valve drive with play compensation - has movement path limitation of slide, resulting in valve lift |
| 04/08/1993 | DE4142197A1 Rocker for valve drive - has cylindrical lock to connect independently movable rocker arms |
| 04/08/1993 | DE4132802A1 Lightweight cast camshaft for engine valves - has integral web with apertures and integral ring forming running face of cam, ring,web and camshaft all being one piece |