| Patents for F01L 1 - Valve-gear or valve arrangements, e.g. lift-valve gear (30,520) |
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| 04/27/1994 | EP0594462A1 Spark ignited internal combustion engines |
| 04/27/1994 | EP0593908A1 Engine brake with exhaust throttle |
| 04/26/1994 | US5306213 Toothed belt |
| 04/26/1994 | US5305719 Engine camshaft deactivation mechanism |
| 04/26/1994 | US5305718 Hydraulic control device |
| 04/26/1994 | US5305717 Arrangement for the automatically controlled varying of the relative rotating position of shafts in an internal-combustion engine |
| 04/21/1994 | DE4334518A1 Hydraulic valve play adjustment mechanism - uses control opening connectable to fluid storage chamber, only communicating during circular phase of cam action |
| 04/21/1994 | DE4334517A1 Roller cup tappet for lift valve - has roller partly accommodated in recess in cup floor and valve comprising channel in piston cover and circular band subjected to pressure |
| 04/21/1994 | DE4334505A1 Roller cup tappet for lift valve - has play adjustment mechanism wholly contained within hollow axis with pressure fluid feed channel |
| 04/20/1994 | EP0592908A1 A method of forming a tappet body in an internal combustion engine |
| 04/20/1994 | EP0592565A1 Multicylinder two stroke cycle engine. |
| 04/19/1994 | US5303686 Method of purifying exhaust gases of an Otto-cycle engine |
| 04/19/1994 | US5303680 Lash adjusting mechanism for multi valve engine |
| 04/19/1994 | US5303467 Method of asembling rocker arms |
| 04/19/1994 | CA1328589C Oil supply system for a valve operating mechanism in internal combustion engines |
| 04/14/1994 | WO1994008130A1 Method for the continuously variable control of cam spread |
| 04/14/1994 | WO1994008129A1 Valve-actuating mechanism |
| 04/14/1994 | DE4334395A1 Cam changeover mechanism for IC engine of motor vehicle - has two cams of different sizes to drive main and auxiliary rocker arms respectively |
| 04/13/1994 | EP0591533A1 Direct acting hydraulic lash adjuster |
| 04/12/1994 | US5301641 Internal combustion engine |
| 04/12/1994 | US5301639 Valve timing control device for internal combustion engine |
| 04/12/1994 | US5301638 Actuating arrangement for a lift valve |
| 04/12/1994 | US5301636 Valve operating mechanism of internal combustion engine |
| 04/06/1994 | EP0590696A2 Variable camshaft timing for internal combustion engine |
| 04/06/1994 | EP0590577A1 System for controlling valve shift timing of an engine |
| 04/05/1994 | US5299881 Assembly of a cylindrical body made to finished dimensions |
| 03/31/1994 | WO1994002714A3 Method and mechanism for gas distribution in four-stroke internal combustion engine with phase regulation |
| 03/31/1994 | DE4332604A1 IC engine inlet device - comprises mechanical charger, number of cylinders to each of which are connected inlet valve and channel and exhaust valve and channel together with variable valve timing mechanism |
| 03/31/1994 | DE4331154A1 Valve drive for stroke valve with cam-actuated slip lever - has pivot bearing, to permit lever movement in plane of desired pivot movement only, lever moving into groove in support element |
| 03/31/1994 | DE4305759A1 Valve drive for stroke valve with cam actuated roller slip lever - has circumferential groove in cam with projecting lever end engaging in it and using it as guide |
| 03/31/1994 | DE4232848A1 Ventilbetätigungsmechanismus A valve operating mechanism |
| 03/31/1994 | DE4232754A1 Damping device for chain wheel - has holders for subsequent fitment on chain wheel allowing damping members to adjoin wheel |
| 03/30/1994 | EP0589580A1 Method for manufacturing a direct acting hydraulic tappet |
| 03/29/1994 | US5297516 Valve actuating apparatus |
| 03/29/1994 | US5297509 For mounting about a stud means |
| 03/29/1994 | US5297508 Variable camshaft drive system for internal combustion engine |
| 03/29/1994 | US5297507 Internal combustion engine having variable event timing |
| 03/29/1994 | US5297506 Valve operating system for an internal combustion engine |
| 03/29/1994 | US5297505 Internal combustion engine valve actuator |
| 03/24/1994 | DE4331898A1 Speed-dependent cam- and lever-operated valve gear for engine - incorporates rocking-lever mechanisms raised and lowered hydraulically under stored-program control according to engine speed and load |
| 03/23/1994 | EP0588336A1 Valve operating device for an internal combustion engine |
| 03/23/1994 | EP0588195A1 Internal combustion engine |
| 03/23/1994 | EP0420863B1 Internal combustion engine with at least one charger of positive displacement design |
| 03/22/1994 | USRE34565 Camshaft for reciprocating piston engines |
| 03/22/1994 | US5295460 Hydraulic valve play equalization element |
| 03/22/1994 | US5295459 Camshaft drive for V-type or horizontally opposed engine |
| 03/17/1994 | DE4230560A1 Cylinder head lubrication system for IC engine - has main oil supply chamber with individual hollow spheres and retaining projections in cylinder head. |
| 03/16/1994 | EP0587479A1 Two-stroke engine with pneumatic injection and first order belancing device for the alternating masses |
| 03/16/1994 | EP0586884A1 An internal-combustion engine provided with an improved valve control assembly |
| 03/16/1994 | EP0586871A1 Valve drive for internal combustion engine |
| 03/15/1994 | US5293847 Powdered metal camshaft assembly |
| 03/15/1994 | US5293845 Control mechanism for engine valve timing |
| 03/15/1994 | US5293776 For indicating the phase of an internal combustion engine |
| 03/13/1994 | CA2104898A1 Internal combustion engine |
| 03/10/1994 | DE4237472C1 Angular adjustment device between cam shaft and cam shaft wheel - has first row of balls pressed axially and or radially into second row of balls by hydraulically moving piston between contact bearing faces |
| 03/10/1994 | DE4230074A1 Stroke-piston IC engine with two gas exchange valves per cylinder |
| 03/10/1994 | DE4229411A1 Rocker arms for pair of engine lift valves - form triangular shape with connecting bar, and has guide fixed to connecting bar |
| 03/09/1994 | EP0585568A1 Valve operating system for an internal combustion engine |
| 03/09/1994 | EP0585327A1 Two-stroke cycle internal combustion engine |
| 03/09/1994 | CN1083565A Valve drive for at least two simulataneously operated upper valves |
| 03/08/1994 | US5293026 Hardsurfacing material for engine components and method for depositing same |
| 03/08/1994 | US5291868 Single overhead cam multi-valve engine |
| 03/08/1994 | US5291860 VCT system with control valve bias at low pressures and unbiased control at normal operating pressures |
| 03/08/1994 | CA1327461C Process for producing individual cams from cast material |
| 03/03/1994 | WO1994004799A1 Regulating slide-valve gear |
| 03/03/1994 | WO1994004798A1 Gripper tool for engine valve disassembly/assembly |
| 03/03/1994 | WO1994004797A1 Drive unit for at least two simultaneously operating engine valves |
| 03/03/1994 | DE4306509C1 Cam shaft adjusting method for IC engine - using pick=up to ascertain relative rotational torque w.r.t. crankshaft and derive instantaneous actual position |
| 03/03/1994 | DE4230809A1 Control for several, simultaneously actuatable valves in group - has yoke-shape transverse secured to valves or their stems, with single cam for valve group. |
| 03/03/1994 | DE4229202A1 Infinite angular adjustment between camshaft wheel and camshaft - involves entrainment elements projecting radially into inner element connected to camshaft and piston set on chord relative to camshaft wheel for direct transfer of force. |
| 03/03/1994 | DE4229201A1 Control time setter for camshaft - has switching valve supplying compressed fluid to infinitely variable adjuster setting angle of rotation between camshaft wheel and camshaft of IC engine |
| 03/03/1994 | DE4229186A1 IC engine valve group control with common cam - which has non-effective face offset w.r.t. effective region of cam face |
| 03/02/1994 | EP0382776B1 Exhaust control valve for two-stroke cycle engines and process for using the same |
| 03/01/1994 | USRE34553 Vale operating apparatus for an internal combustion engine |
| 03/01/1994 | US5289806 Combustion engine with at least one camshaft which can be shifted axially |
| 03/01/1994 | US5289805 Self-calibrating variable camshaft timing system |
| 03/01/1994 | US5289804 Tappet in an internal combustion engine |
| 03/01/1994 | US5289623 Shim attaching/detaching tool for engine tappet |
| 02/24/1994 | DE4323518A1 Tappet for operating combustion engine lift valve - has profiled body with control features placed at different levels and has take-up sections lying opposite each other in upper edge of housing |
| 02/24/1994 | DE4226798A1 Stroke-piston IC engine with two gas exchange valves per cylinder |
| 02/23/1994 | EP0583584A1 Valve operating system structure with variable valve timing mechanism |
| 02/23/1994 | EP0583583A2 Internal combustion engine for vehicle |
| 02/22/1994 | US5288276 Tightening device for a drive belt |
| 02/22/1994 | US5287840 Cam sections for a "V"-type diesel engine |
| 02/22/1994 | US5287830 For an internal combustion engine |
| 02/22/1994 | US5287615 Process for joining a hollow shaft and elements slid thereon |
| 02/22/1994 | CA1327152C Irregularity-detecting method for variable valve-timing type engine |
| 02/22/1994 | CA1327150C Mechanism for the progressive dephasing of a camshaft in an internal combustion engine |
| 02/17/1994 | DE4327128A1 IC engine for portable power tool with crankshaft - has cam shaft in plane contg. centre lines of crankshaft and cylinder between crankshaft and cylinder head |
| 02/17/1994 | DE4326186A1 Drive mechanism for IC engine lift valve - uses endless loop in contact with cam and with lift valve pressure roller |
| 02/17/1994 | DE4326178A1 Drag lever drive for IC engine lift valve - has hydraulically operated play compensation cylinder held in lever recess |
| 02/17/1994 | DE4227001A1 Hydraulic drive for cam setting in IC engine - has hydraulic pump driven by reversible DC motor and separated from pump by non return valves cross linked to other feed lines. |
| 02/17/1994 | DE3943729A1 IC engine with four valves per cylinder - incorporates carrier block in cylinder head accommodating angled tappet guides, camshaft bearings and access tube for sparking plug. |
| 02/16/1994 | EP0582846A1 Internal combustion piston engine with gas exchange valves per cylinder |
| 02/16/1994 | EP0582719A1 Control device for an engine having variable suction and exhaust valve mechanism and controlling method therefor |
| 02/16/1994 | EP0504223B1 Valve arrangement |
| 02/16/1994 | EP0461150B1 Actuating mechanisms |
| 02/16/1994 | CN1082143A Method and apparatus to improve engine response transient |
| 02/16/1994 | CN1081976A Engine braking utilizing unit valve actuation |
| 02/16/1994 | CN1023826C Improvements in reciprocating internal combustion engines of two-stroke type |