| Patents for F01L 1 - Valve-gear or valve arrangements, e.g. lift-valve gear (30,520) |
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| 02/03/1998 | US5713317 Method of and apparatus for continuously and variably controlling valve timing of internal combustion engine |
| 01/29/1998 | WO1998003780A1 Pulling piston engine |
| 01/29/1998 | WO1998003778A1 Valve drive system and cylinder head for an internal combustion engine |
| 01/29/1998 | WO1998003776A1 Coaxial valves arrangement |
| 01/29/1998 | WO1998003775A1 Continuous fibre reinforced aluminium matrix composite pushrod |
| 01/29/1998 | DE19630443A1 Zero backlash hydraulic tappet for internal combustion engine |
| 01/29/1998 | DE19630294A1 Valve tappet for internal combustion engine |
| 01/29/1998 | DE19630174A1 Vorrichtung zur Drehwinkelverstellung Device for adjusting the rotation angle |
| 01/29/1998 | DE19628914C1 Cylinder head of multi=cylinder internal combustion engine in V=formation |
| 01/29/1998 | DE19617593A1 Hollow camshaft produced out of a length of pipe |
| 01/29/1998 | CA2326410A1 Pulling piston engine |
| 01/28/1998 | EP0821144A1 Cylinder head arrangement of an internal combustion engine |
| 01/28/1998 | EP0821142A1 dual event valve control system |
| 01/28/1998 | EP0821139A1 Oil supply structure in variable valve timing mechanism |
| 01/28/1998 | EP0821138A1 Valve timing control devices |
| 01/27/1998 | US5711266 Cylinder head for an internal combustion engine |
| 01/27/1998 | US5711260 Rocket support assembly |
| 01/27/1998 | US5711259 Method of measuring a valve play of an engine-cylinder valve operated by an electromagnetic actuator |
| 01/22/1998 | WO1998002653A1 Improved internal combustion engine and working cycle |
| 01/22/1998 | WO1998002646A1 A hydraulically controlled intake/exhaust valve |
| 01/22/1998 | WO1998002645A1 Hydraulic play compensating element |
| 01/22/1998 | WO1998002644A1 Power machine valve control |
| 01/22/1998 | DE4497420C1 Switching tappet for IC engine valve gear |
| 01/22/1998 | DE19630407A1 Hydraulic valve setting element for internal combustion engine |
| 01/22/1998 | DE19629349A1 Valve drive for internal combustion engine |
| 01/22/1998 | DE19629313A1 Hydraulic play compensator for IC-engine valve drive |
| 01/22/1998 | DE19629203A1 Hydraulic play adjuster for IC-engine valve drive |
| 01/22/1998 | DE19628730A1 Hydraulic tappet for internal combustion engine valve drive |
| 01/22/1998 | CA2260826A1 A hydraulically controlled intake/exhaust valve |
| 01/21/1998 | EP0819038A1 Machine part |
| 01/20/1998 | US5709625 Hydraulic tensioner |
| 01/20/1998 | US5709183 Shroud and combustion chamber for an internal combustion engine |
| 01/20/1998 | US5709181 Rocker arm assembly |
| 01/20/1998 | US5709180 Narrow cam two-step lifter |
| 01/20/1998 | US5709179 Engine cylinder valve control system |
| 01/20/1998 | US5709178 Electronically controlled outwardly opening valve system for an engine |
| 01/15/1998 | DE19647412C1 Drive for rotating engine poppet-valve |
| 01/15/1998 | DE19630309A1 Valve drive interrupter for motor vehicle IC engine |
| 01/15/1998 | DE19627982A1 Hydraulisches Spielausgleichselement Hydraulic lash adjuster |
| 01/14/1998 | EP0818641A1 A phase variator |
| 01/14/1998 | EP0818640A1 A phase variator |
| 01/14/1998 | EP0818619A2 Method and apparatus for monitoring the state of a variable valve control |
| 01/14/1998 | EP0818612A1 Engine brake operating device |
| 01/14/1998 | EP0818611A1 Variable valve performance mechanism in internal combustion engine |
| 01/14/1998 | EP0818610A2 Valve timing control devices |
| 01/14/1998 | EP0818609A2 Valve timing control devices |
| 01/14/1998 | EP0818608A1 Internal combustion engine with timing chain pre-assembly cassette |
| 01/14/1998 | EP0680556B1 Process for calculating the air filling volume in an internal combustion engine with a variable gas exchange control |
| 01/14/1998 | CN2272487Y Valve swing arm mechanism for four-stroke engine |
| 01/13/1998 | US5706773 Integral formed oil column extender for hydraulic lash adjuster |
| 01/13/1998 | US5706772 Tappet in an internal combustion engine and a method of manufacturing the tappet |
| 01/13/1998 | US5706771 Hydraulic element assembly |
| 01/13/1998 | US5706770 Valve drive of an internal combustion engine |
| 01/13/1998 | US5706769 OHC engine |
| 01/08/1998 | DE4494320C1 Gas-inlet or -outlet valve lever |
| 01/08/1998 | DE19713303A1 Hydraulic damping element in internal combustion engine |
| 01/08/1998 | DE19625554A1 Verfahren zum Fügen und Prüfen A method for assembling and testing |
| 01/07/1998 | EP0816643A1 Hydraulic actuator in an internal combustion engine |
| 01/07/1998 | EP0815355A1 Exhaust valve mechanism in an internal combustion engine |
| 01/06/1998 | US5704330 Cylinder head arrangement for internal combustion engine |
| 01/06/1998 | US5704319 Hydraulic clearance compensation element for valve control units of internal-combustion engines |
| 01/06/1998 | US5704318 In a valve operating mechanism |
| 01/06/1998 | US5704317 Method for operating a hydraulically controlled/regulated camshaft adjuster for internal combustion engines |
| 01/06/1998 | US5704316 Valve drive system of an internal combustion engine |
| 01/06/1998 | US5704315 Valve operating system in SOHC-type engine |
| 01/02/1998 | DE19624785A1 Multi=valve piston engine |
| 01/02/1998 | DE19624413A1 Tip or drag lever lubrication method |
| 12/31/1997 | WO1997049512A1 Method for joining and inspecting |
| 12/30/1997 | US5701930 Modular valve assembly |
| 12/30/1997 | US5701858 Variable valve timing mechanism of engine |
| 12/30/1997 | US5701857 Cylinder valve operating system |
| 12/29/1997 | EP0814245A1 Method and device for operating a spark ignited piston internal combustion engine |
| 12/29/1997 | EP0814240A1 Hydraulic tappets |
| 12/29/1997 | EP0814239A1 Latch assembly for a valve control system |
| 12/29/1997 | EP0814238A1 Electromagnetic actuating device for lift valves of internal combustion engines |
| 12/29/1997 | EP0814237A1 Valve drive in an internal combustion engine |
| 12/29/1997 | EP0653015A4 Valves and valve timing for internal combustion engine. |
| 12/29/1997 | EP0646217B1 Camshaft drive |
| 12/24/1997 | CN1168445A Hydraulic lash adjuster |
| 12/23/1997 | US5699765 Cylinder head for a uniflow-scavenged two-stroke internal-combustion engine |
| 12/23/1997 | US5699762 Valve operating system for internal combustion engine |
| 12/18/1997 | DE19623769A1 Variable timing mechanism for valve-gear |
| 12/18/1997 | DE19623424A1 Valve tappet for use in internal combustion engine |
| 12/17/1997 | EP0812380A1 Internal-combustion engine fitted with a cam drive |
| 12/17/1997 | EP0812379A1 Assembled multi-layer shafts |
| 12/16/1997 | US5697344 Engine fuel distributing pipe structure |
| 12/11/1997 | WO1997046341A1 Process and device for producing camshafts |
| 12/11/1997 | DE19721288A1 Valve control for four stroke IC engine |
| 12/11/1997 | DE19622888A1 Clampless sheet-section formed drag or tilt lever |
| 12/11/1997 | DE19622555A1 Adjusting device for camshaft of internal combustion engine |
| 12/11/1997 | DE19622372A1 Verfahren und Vorrichtung zum Herstellen von Nockenwellen Method and apparatus for producing camshafts |
| 12/11/1997 | CA2257354A1 Process and device for producing camshafts |
| 12/10/1997 | EP0811789A1 Mechanical part |
| 12/10/1997 | EP0811754A1 Valve drive for engine or machine, in particular for internal combustion engine |
| 12/10/1997 | CN1167255A Engine rotation test system |
| 12/09/1997 | US5694912 Fuel injection amount control apparatus for engine |
| 12/09/1997 | US5694894 For use in an overhead camshaft internal combustion engine |
| 12/09/1997 | US5694892 Roller camshaft for internal combustion engine |
| 12/04/1997 | WO1997045626A1 Cam follower of an internal combustion engine valve gear in the form of a rocker arm |
| 12/04/1997 | DE19720900A1 Combustion engine valve drive with cam-tripped valve levers |