| Patents for F01L 1 - Valve-gear or valve arrangements, e.g. lift-valve gear (30,520) |
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| 06/07/2001 | US20010002587 Method for evaluating the march of pressure in a combustion chamber |
| 06/07/2001 | DE19958635A1 Ring valve for 4-stroke reciprocating piston engines is located in cylinder turnable about and sliding in direction of, longitudinal cylinder axis |
| 06/07/2001 | DE19958629A1 Valve timing adjusting device for IC engines has axial camshaft bearing between oil feed grooves in camshaft |
| 06/07/2001 | DE19958541A1 Vorrichtung zur Drehwinkelverstellung einer Nockenwelle A device for angular adjustment of a camshaft |
| 06/07/2001 | DE19958314A1 Rollenstößel Roller plunger |
| 06/07/2001 | DE19957772A1 Valve lifter for valve drive in IC engines esp. cup lifter has check part with contact path fastened to guide jacket via acute angle chamfers |
| 06/07/2001 | DE19957165A1 Ventilsteuerung für eine Brennkraftmaschine Valve control for an internal combustion engine |
| 06/07/2001 | DE19957157A1 Valve controller for internal combustion engine detects camshaft measurement values to check function of one or more switching elements, displays function signal if defined deviation |
| 06/07/2001 | DE19956584A1 Positive control device to actuate gas exchange valve in IC engines has displace part to transmit traction forces from transmission part to valve shaft |
| 06/07/2001 | DE19955507A1 Camshaft adjuster for IC engines has connection screw shaft integrated in camshaft |
| 06/07/2001 | DE10055439A1 Hydraulic engine braking arrangement for vehicle engines with a hydraulic fuel injection system |
| 06/07/2001 | DE10045773A1 Tappet roller for fuel injection system, has amount of crowning dropping in axial direction that makes abutment surface into starting point while satisfying predetermined equation |
| 06/07/2001 | DE10026990A1 Valve timing control system for internal combustion engine; has units to determine desired valve control time and measure actual valve control time and control unit to correct valve timing |
| 06/05/2001 | US6240887 Multi-cylinder engine |
| 05/31/2001 | WO2001038757A1 Tensioner device |
| 05/31/2001 | DE4492633C1 Valve lifter for IC engine |
| 05/31/2001 | DE19956159A1 Valve drive for IC engines has gas exchange valve switching elements and tolerance compensation element located separate from each other |
| 05/31/2001 | DE10056227A1 Decompression device for four-stroke engine has idler coupling with peripheral protrusion for holding decompression cam stationary by contact with stopper with camshaft in normal position |
| 05/30/2001 | EP1103712A1 Cylinder head for an internal combustion engine |
| 05/30/2001 | EP1103707A2 Valve control for a combustion engine |
| 05/30/2001 | EP1103700A2 Internal combustion engine having a variable valve train |
| 05/30/2001 | CN1066516C One-piece hollow camshaft and process for producing it |
| 05/30/2001 | CN1066371C 轴相位控制机构 Axis phase control mechanism |
| 05/29/2001 | US6240359 Control system for internal combustion engine |
| 05/29/2001 | US6237719 Lubricating oil discharge system |
| 05/29/2001 | US6237559 Cylinder deactivation via exhaust valve deactivation and intake cam retard |
| 05/29/2001 | US6237554 Compact head assembly for internal combustion engine |
| 05/29/2001 | US6237553 Arrangement for driving valves |
| 05/29/2001 | US6237552 Motorcycle rocker arm |
| 05/29/2001 | US6237551 Multi-cylinder diesel engine with variable valve actuation |
| 05/29/2001 | US6237549 Vented valve mechanism for internal combustion engines |
| 05/29/2001 | US6237466 Vane type hydraulic actuator |
| 05/25/2001 | WO2001036793A1 Multiple cylinder internal combustion engine |
| 05/23/2001 | EP1101025A1 Chain adjuster for internal combustion piston engine with variable combustion chamber |
| 05/23/2001 | EP1101017A1 Desmodromic cam driven variable valve timing mechanism |
| 05/23/2001 | EP0963509B1 Gas shuttle valve, and method for measuring the pressure in the combustion chamber of an internal combustion chamber |
| 05/23/2001 | DE19955473A1 Multi-valve cylinder head for IC engine has electromagnetic actuators controlling gas changing valves positioned at peripheral region of each engine cylinder |
| 05/23/2001 | DE19954689A1 Mehrzylindrige Brennkraftmaschine Multi-cylinder internal combustion engine |
| 05/23/2001 | DE19954481A1 Kettenführung für einen Steuerwellenantrieb einer Brennkraftmaschine sowie Verfahren zur Herstellung einer Kettenführung Chain guide for a camshaft drive of an internal combustion engine and method for producing a chain guide |
| 05/23/2001 | DE19953513A1 Verfahren zum Steuern der Zylinderverdichtung während der Startphase einer Brennkraftmaschine Method for controlling the cylinder compression during the initial phase of an internal combustion engine |
| 05/23/2001 | DE10022690A1 Camshaft drive setting device for internal combustion engine, with drive disk, setting gear wheel, oscillation lever and at least one crank gear wheel |
| 05/23/2001 | DE10021221C1 Timing gear cover for an IC motor has two sets of holding eyes and stiffening ribs in a grid structure to reduce timing gear noise emissions |
| 05/22/2001 | US6234928 Ratchet tensioner |
| 05/22/2001 | US6234126 Engine valve control |
| 05/22/2001 | US6234125 Apparatus for angular adjustment of camshafts relative to crankshafts in combustion engines |
| 05/22/2001 | US6234124 Internal combustion engine with valve rest mechanisms |
| 05/17/2001 | WO2001034948A1 Method for controlling the cylinder compression during starting of an internal combustion engine |
| 05/17/2001 | WO2001034947A1 Valve timing control device |
| 05/17/2001 | DE19954438A1 Head piston for IC engines is opposed to working piston within cylinder, with constant/variable volume combustion chamber formed between pistons |
| 05/17/2001 | CA2324683A1 Method and apparatus for operating a hydraulically-powered compression release brake assembly of an internal combustion engine |
| 05/16/2001 | EP1099827A1 Chain guide for an internal combustion engine camshaft drive and a method for producing a chain guide |
| 05/16/2001 | EP0914546B1 Valve drive system and cylinder head for an internal combustion engine |
| 05/16/2001 | EP0815355B1 Exhaust valve mechanism in an internal combustion engine |
| 05/15/2001 | US6230676 Interchangeable rocker arm assembly |
| 05/15/2001 | US6230675 Intake valve lift control system |
| 05/10/2001 | WO2001033066A1 Exhaust port structure of internal combustion engine |
| 05/10/2001 | DE19953419A1 Internal combustion engine with gas reverser valve operates valve by roller lever as force transfer link between valve shaft and camshaft using gray iron for cylinder head and crankcase. |
| 05/10/2001 | DE19952909A1 Switchable support element with lost-motion spring, at least most of which completely encloses internal element concentrically |
| 05/10/2001 | DE10051425A1 Motorsteuersystem und -verfahren für einen Direkteinspritzer mit veränderlicher Ventilsteuerzeit Engine control system and method for a direct injection engine with variable valve timing |
| 05/10/2001 | DE10051417A1 Steuerungsverfahren für Motoren mit mehrfachen Steuerungsvorrichtungen Control procedures for engines with multiple control devices |
| 05/10/2001 | DE10051416A1 Computer program speed control for internal combustion engine, controls, e.g. by electronic throttle, intake manifold flow into engine cylinders, to achieve desired engine speed and torque |
| 05/09/2001 | EP1097295A1 Electronic device for controlling gas exchange valves of an internal combustion engine with variable opening functions |
| 05/09/2001 | EP1097294A1 Internal combustion engine |
| 05/09/2001 | CN1294256A Top-arranged camshaft type v-2 engine |
| 05/08/2001 | US6227156 Rocker arm for a valve train of an internal combustion engine |
| 05/08/2001 | US6227155 Structure for lubricating cam shaft in multi-cylinder engine |
| 05/08/2001 | CA2241435C Molded plastic camshaft with metal seal ring |
| 05/03/2001 | WO2001031174A1 Device for hydraulically adjusting the angle of rotation of a shaft relative to a driving wheel |
| 05/03/2001 | WO2001031173A1 Method of reducing emissions in the exhaust gases of an internal combustion engine |
| 05/03/2001 | US20010000572 Sheet metal rocker arm, manufacturing method thereof, cam follower with said rocker arm, and assembling method thereof |
| 05/03/2001 | DE19951392A1 Automotive engine valve timing mechanism operated by pivoting spindle linked at both ends to coaxial housings |
| 05/03/2001 | DE19951390A1 Vorrichtung zur hydraulischen Drehwinkelverstellung einer Welle relativ zu einem Antriebsrad Device for hydraulic rotational angle adjustment of a shaft relative to a drive wheel |
| 05/02/2001 | EP1096173A2 Blade-type chain tensioner |
| 05/02/2001 | EP1096112A1 Device for changing the timing of gas exchange valves of a combustion engine, especially hydraulic vane cell timer |
| 05/02/2001 | CN2428574Y Cam shaft |
| 05/01/2001 | US6223709 Four cycle engine |
| 05/01/2001 | US6223426 Device for introducing valve keys in internal-combustion-engine valves |
| 04/26/2001 | WO2001029466A1 A guide plate for a poppet valve |
| 04/26/2001 | WO2001029377A1 Valve timing adjusting device |
| 04/26/2001 | DE19951098A1 Actuator device for gas exchange valve of IC engines has valve spring adjusting piston locked in position when adjusting cylinder pressure drops to below set level |
| 04/26/2001 | DE19950610A1 Hydraulic play leveling device, with shell sector and radial web of compression piston made as separate parts |
| 04/26/2001 | DE19950585A1 Pivot bearing for hydraulic tappet clearance compensation element for IC engines has high pressure chamber for hydraulic medium with medium bore leading directly to bearing |
| 04/26/2001 | DE10024719A1 Einlassventilhub-Steuersystem Intake valve lift control system |
| 04/26/2001 | CA2387574A1 A guide plate for a poppet valve |
| 04/25/2001 | EP1094213A2 DOHC diesel engine cylinder head |
| 04/25/2001 | CN1292845A Device for adjusting phase position of shaft |
| 04/24/2001 | US6220758 Roller supporting device |
| 04/24/2001 | US6220757 Sliding part for a sliding mechanism |
| 04/24/2001 | US6220527 Cleaning device having cleaning agent provided therein |
| 04/24/2001 | US6220213 Rocker arm installed in a cylinder head of a valve train of an internal combustion engine |
| 04/24/2001 | US6220212 Automotive valve rocker arms |
| 04/24/2001 | US6220211 Cam advancing and retarding mechanism |
| 04/24/2001 | US6220210 Solenoid valve driving device |
| 04/24/2001 | US6220209 Rocking follower mechanism for three-dimensional cam |
| 04/24/2001 | CA2214301C Valve operating system in internal combustion engine |
| 04/19/2001 | WO2001027478A1 Robust servo/hydraulic control system and method |
| 04/19/2001 | DE19949497A1 Hydraulic damping element used in valve drives of internal combustion engines comprises a spring-loaded piston which can move in a cylinder and a leakage gap arranged between the inner wall of the cylinder and the outer casing of the piston |
| 04/19/2001 | DE19946077A1 Verfahren zur Regelung der Lage einer Nockenwelle und Anordnung zur Durchführung des Verfahrens Method for controlling the position of a camshaft and arrangement for performing the method |
| 04/19/2001 | DE19932343A1 Drive for valve of internal combustion engine has lever acting on end part of valve shaft which is mounted thereon by flat needle bearing where axes of needles lie parallel to swivel axis |
| 04/19/2001 | DE10050606A1 Variable adjuster for valve opening and closing times in internal combustion engines includes operating pressure biasing and relaxing device to supply and empty oil in and out of oil |