| Patents for F01L 13 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations (9,664) |
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| 11/08/2000 | EP1050669A2 Valve driving arrangement with variable lift for an internal combustion engine |
| 11/08/2000 | EP1049857A1 Device for interrupting the power flux between at least one valve and at least one cam of a camshaft |
| 11/02/2000 | DE19919245A1 Valve drive for IC engines with pre-tension forces of first and second compression spring, and hydraulic medium pressure phased relative to each other |
| 11/02/2000 | DE10013536A1 Ventilsteuerung für Motoren mit hin- und hergehenden Kolben Valve control for engines with reciprocating pistons |
| 11/02/2000 | DE10013518A1 Automotive valve rocker arm has elongate lever comprising lockable valve and cam engagement portions mounted for rocking movement about shaft, each portion having bush rotatable about each other and shaft |
| 10/31/2000 | US6138636 Apparatus for controlling multi-cylinder internal combustion engine with partial cylinder switching-off mechanism |
| 10/31/2000 | US6138620 Valve operating system in an internal combustion engine |
| 10/26/2000 | DE19929296A1 Device to vary the timing of IC engines has two wheel pairings with drive and take-off pulleys, gas exchange element, and adjusting mechanism for wheel pairings |
| 10/24/2000 | US6135078 Variable valve timing control apparatus for an internal combustion engine |
| 10/24/2000 | US6135076 Device to activate the variable distribution valves of internal combustion engines |
| 10/24/2000 | US6135075 Variable cam mechanism for an engine |
| 10/24/2000 | US6135074 Tappet for the valve gear mechanism of an internal combustion engine |
| 10/19/2000 | WO2000061930A1 Exhaust and intake rocker arm assemblies for modifying valve lift and timing during positive power |
| 10/19/2000 | DE10016747A1 Engine control unit for an internal combustion engine is linked to the ignition switch and determines when it is switched off so that it can control a coil that moves the inlet valve and ensure the inlet valve is completely closed |
| 10/17/2000 | US6131554 Engine having combustion control system |
| 10/17/2000 | US6131545 Apparatus for switching off a load change valve of an internal combustion engine |
| 10/17/2000 | US6131541 Variable valve performance mechanism in internal combustion engine |
| 10/12/2000 | DE19915532A1 Switchable cam tracker or support element, with casing boring coming out in form of flattening |
| 10/12/2000 | DE19915531A1 Cam tracker for valve drive of internal combustion engine, with locking element such as piston fixed in inner element receiver |
| 10/11/2000 | EP1042598A1 Engine braking with positive power valve actuation |
| 10/10/2000 | US6129060 Camshaft phase changing apparatus |
| 10/05/2000 | DE19914909A1 Cam shaft for 4-stroke IC engine has cams opening intake valves/ejection valves during ejection/intake strokes, for adjustment of valve opening timing/period during stroke |
| 10/03/2000 | US6125828 Internal combustion engine with combined cam and electro-hydraulic engine valve control |
| 10/03/2000 | US6125804 Variable valve lift device |
| 10/03/2000 | US6125801 Lean-burn variable compression ratio engine |
| 09/30/2000 | CA2267882A1 'arvs' or attain's rotoport valve systems |
| 09/28/2000 | DE19914046A1 Valve drive tappet for internal combustion engine, with compression piston at leased partly enclosed by spring on region projecting from underside of tappet |
| 09/28/2000 | DE19914045A1 Pushrod of valve drive for internal combustion engine, divided into two so that it consists of sectors on cam side and on tappet side |
| 09/28/2000 | DE19914044A1 Tappet built into cylinder head of engine valve drive, with axis led into elongated hole in bearing block on cylinder head |
| 09/28/2000 | DE19913742A1 Vorrichtung zur Hubverstellung eines Gaswechselventils im Zylinderkopf einer Brennkraftmaschine Device for adjusting the stroke of a gas exchange valve in the cylinder head of an internal combustion engine |
| 09/28/2000 | DE19913290A1 Switchable cam tracker for engine valve drive, with at least one web forms in sectors or completely of injectable foam material |
| 09/27/2000 | EP1039111A2 Direct injection diesel engine |
| 09/27/2000 | EP1039103A2 Device for modifying the valve lift in an engine cylinder head |
| 09/27/2000 | EP1038095A1 Variable lost motion valve actuator and method |
| 09/26/2000 | US6123053 Variable valve actuation apparatus for internal combustion engines |
| 09/20/2000 | EP1036267A1 Lost motion valve actuation system |
| 09/20/2000 | EP1036257A1 Lost motion full authority valve actuation system |
| 09/20/2000 | CN1266941A Changeable air valve characteristics control equipment for IC engine, and three-D cam |
| 09/19/2000 | US6119641 Apparatus and method for controlling a device for adjusting a valve stroke course of a gas exchange valve of an internal combustion engine |
| 09/13/2000 | EP1035303A2 Internal combustion engine variable valve characteristic control apparatus and three-dimensional cam |
| 09/06/2000 | EP1032753A2 Integrated lost motion system for retarding and egr |
| 09/06/2000 | EP1032752A1 Method and system start-up apparatus for removing air and debris from a valve actuation system |
| 09/06/2000 | EP1032751A2 Device to limit valve seating velocities in limited lost motion tappets |
| 09/05/2000 | US6112710 Method and system start-up apparatus for removing air and debris from a valve actuation system |
| 08/31/2000 | DE19908286A1 Variable valve control for internal combustion engine, in which each cam device can move axially on setter shaft connected to operating device |
| 08/30/2000 | EP1031706A1 Method of operating an internal combustion engine |
| 08/30/2000 | EP1031705A2 Electromechanical latching rocker arm valve deactivator |
| 08/30/2000 | EP1030964A1 Lost motion hydraulic overhead with integrated retarding |
| 08/29/2000 | US6109230 Decompression device for an engine |
| 08/22/2000 | US6105551 Revolution speed control apparatus for an internal combustion engine |
| 08/17/2000 | WO2000047883A1 Variable valve gear device of internal combustion engine |
| 08/17/2000 | WO2000012895A9 Valve seating control device with variable area orifice |
| 08/17/2000 | DE19905234A1 Adjusting unit for applying variable control to internal combustion engine valves has a cylindrical worm drive with a screw thread and a sliding element running along the worm drive's thread and sliding on the worm drive |
| 08/17/2000 | DE10004823A1 System for controlling and regulating an internal combustion engine's valve operation includes valve operating change mechanisms of a camshaft control type and a cam-phase change type |
| 08/16/2000 | EP1027534A1 Co-axial master piston assembly |
| 08/10/2000 | DE19904840A1 Valve drive for IC engines has thrust crank-like pressure lever supported on valve shaft and on intermittently rotating support body |
| 08/09/2000 | EP1026370A2 Variable-valve-actuation apparatus for internal combustion engine |
| 08/09/2000 | EP1025345A1 Internal combustion engine with compressor function |
| 08/08/2000 | US6098580 Variable valve actuator apparatus |
| 08/08/2000 | US6098574 Method for controlling changing-over of rotational direction of internal combustion engine |
| 08/03/2000 | WO2000045035A1 Valve opening mechanism |
| 08/03/2000 | DE19903492A1 Flat base tappet, especially for gas exchange valves of internal combustion engine, has bevels or roundings formed on dogs on outer radius of locking disc for guided entry into recesses in outer cup |
| 08/03/2000 | DE19903455A1 Flat based tappet, especially for gas exchange valves of internal combustion engines, has spiral spring acting as connecting element and which by outer edge portions engages with recesses in outer cup when spring expands |
| 08/02/2000 | EP1023532A1 Slave piston assembly with valve motion modifier |
| 08/02/2000 | EP0963508A4 Adjustment mechanism for valves |
| 08/02/2000 | CN1261645A Engine with valve stop function |
| 08/01/2000 | US6095115 Self-clipping slave piston device with lash adjustment for a compression release engine retarder |
| 07/26/2000 | EP1022443A1 Variable valve drive for internal combustion engine |
| 07/25/2000 | US6092497 Electromechanical latching rocker arm valve deactivator |
| 07/20/2000 | WO2000042300A1 Improvements in a variable valve timing system for an internal combustion engine |
| 07/20/2000 | DE10000751A1 Valve control for IC engine has a compensating duct between the inlet ducts of the same cylinder to prevent buildup of fuel behind inlet valves which are inactive |
| 07/20/2000 | DE10000750A1 Multi-cylinder engine for motorcycle has hydraulic valve drive control valve attached to side face of cylinder head |
| 07/19/2000 | EP1020619A2 Valve drive system for engine |
| 07/19/2000 | EP1009921A4 Applied lost motion for optimization of fixed timed engine brake systems |
| 07/19/2000 | EP0648312B1 Method for motor-braking by means of a multi-cylinder internal combustion engine |
| 07/19/2000 | CN1260443A Driving device for valve of engine |
| 07/12/2000 | CA2257437A1 Improvements in a variable valve timing system for an internal combustion engine |
| 07/11/2000 | US6085721 Bar engine brake |
| 07/11/2000 | US6085707 Valve operating system in internal combustion engine |
| 07/11/2000 | US6085705 Variable lost motion valve actuator and method |
| 07/04/2000 | US6082328 Method and apparatus to accomplish exhaust air recirculation during engine braking and/or exhaust gas recirculation during positive power operation of an internal combustion engine |
| 06/29/2000 | WO2000037786A1 Engine brake application system |
| 06/29/2000 | DE19961795A1 Exhaust brake for IC engines has outlet and brake rocker arms supporting contact units, which are connected when exhaust braking is required |
| 06/29/2000 | DE19961759A1 Valve control system for IC engines has bearer shaft fitted into seat bore in valve lifter, with valve lifter peg fitting into groove in shaft |
| 06/28/2000 | EP1013913A1 Exhaust gas recirculation device |
| 06/28/2000 | EP1012446A2 Engine valve actuator with valve seating control |
| 06/21/2000 | EP1009921A1 Applied lost motion for optimization of fixed timed engine brake systems |
| 06/21/2000 | DE19959125A1 Variable valve control device for IC engine has angular phase and axial movement control devices operated independently and hydraulic pressure can be applied constantly to latter |
| 06/21/2000 | DE19954388A1 Switchable tappet for valve drive of internal combustion engine, with rest for end of pushrod on outer sector, and inner sector with cam running surface |
| 06/21/2000 | DE19950989A1 Switchable tappet for valve drive of internal combustion engine, with locking device for coupling device |
| 06/20/2000 | US6076491 Valve control mechanism |
| 06/14/2000 | CN1053482C Automatic pressure reducer for internal combustion engine with at least one driving cylinder |
| 06/13/2000 | US6073599 Engine decompression device |
| 06/08/2000 | DE19855932A1 Arrangement for controlling gas replacement valves in an internal combustion engine has inlet valve discs with different diameters from each other |
| 06/07/2000 | EP0805911B1 Stroke limiter for hydraulic actuator pistons in compression release engine brakes |
| 06/02/2000 | WO2000031385A1 Internal combustion engine with combined cam and electro-hydraulic engine valve control |
| 06/02/2000 | WO2000031384A1 Method for controlling an electromechanical actuating drive for a gas exchange valve of an internal combustion engine |
| 05/31/2000 | EP1003957A1 Method for adjusting a valve lift |
| 05/30/2000 | US6067947 Valve driving apparatus for engine |
| 05/25/2000 | WO2000012895A3 Valve seating control device with variable area orifice |