| 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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| 09/29/1994 | WO1994021899A1 Valve control means |
| 09/29/1994 | WO1994021897A1 Valve operating gear |
| 09/29/1994 | DE4410034A1 Valve timing gear system of an engine |
| 09/27/1994 | US5349929 Valve controller for controlling the suction valve of an internal-combustion engine |
| 09/22/1994 | DE4406990A1 Camshaft arrangement with a pivotable cam |
| 09/22/1994 | DE4406968A1 Camshaft arrangement with a swivelling cam, capable of limited swivelling on a camshaft |
| 09/22/1994 | DE4308582A1 Valve timing gear for increasing the intake temperature for the cold starting of internal combustion engines |
| 09/20/1994 | US5347962 Valve mechanism of internal combustion engine |
| 09/15/1994 | DE4406008A1 Internal combustion engine with at least two inlet or exhaust valves and a valve timing gear assigned to these |
| 09/14/1994 | EP0615058A1 Cylinder head for an internal combustion engine |
| 09/14/1994 | EP0615057A1 Variable geometry distribution control for an internal combustion engine |
| 09/13/1994 | US5345904 Valve control means |
| 09/13/1994 | US5345898 Valve operating mechanism for an internal-combustion engine |
| 09/13/1994 | CA1331944C Valve operating device for internal combustion engine |
| 09/06/1994 | US5343833 Valve gear device for internal combustion engines |
| 09/01/1994 | WO1994019585A1 Cam phase change mechanism |
| 08/23/1994 | CA2054879C Two-step valve operating mechanism |
| 08/18/1994 | DE4403426A1 Adjusting device for at least one cam |
| 08/18/1994 | DE4317638C1 Valve actuating device for a multi-cylinder internal combustion engine |
| 08/18/1994 | DE4303789A1 Adjustable driving device for lift transmission elements displaceable in opposition to one another |
| 08/11/1994 | DE4401864A1 Control device for inlet and exhaust valves of an internal combustion engine with a de-activatable cam |
| 08/11/1994 | DE4301453A1 Variable valve timing gear for internal combustion engines |
| 08/09/1994 | US5335636 Engine comprising a continuous braking device, particularly for an industrial vehicle |
| 08/03/1994 | EP0608925A1 Compact valve-lifters |
| 08/03/1994 | EP0608522A1 Engine brake for heavy goods vehicle 4 stroke engine |
| 08/03/1994 | EP0608521A1 Engine brake for heavy goods vehicle 4 stroke engine |
| 08/03/1994 | EP0608520A1 Engine brake for heavy goods vehicle 4 stroke engine |
| 08/02/1994 | US5333579 Control device for controlling intake and exhaust valves of internal combustion engine |
| 07/28/1994 | DE4244286A1 Controllable valve gear with rocker arms and bottom camshaft for inlet and exhaust valves of internal combustion engines |
| 07/27/1994 | EP0607992A1 Intake system for internal combustion engine |
| 07/27/1994 | EP0607918A1 SOHC-type valve operating system in internal combustion engine |
| 07/27/1994 | EP0604598A4 Mechanically retained wear-resistant ceramic pad. |
| 07/26/1994 | US5331866 Camshaft arrangement having a deactivatable cam |
| 07/21/1994 | WO1994016203A1 Device for the variable control of the valves of internal combustion engines, especially for the chokeless load control of four-stroke engines |
| 07/21/1994 | WO1994016202A1 Device for the variable control of the valves of internal combustion engines, especially for the chokeless load control of four-stroke engines |
| 07/20/1994 | EP0567552A4 A dual mode, phase shifting, cam engine |
| 07/19/1994 | US5329895 System for controlling valve shift timing of an engine |
| 07/19/1994 | US5329894 Variable valve timing |
| 07/14/1994 | DE4300684A1 Valve drive for variable control of IC engine |
| 07/14/1994 | DE4300487A1 Valve play adjustment mechanism for IC engine |
| 07/12/1994 | US5327858 Flow restriction controlled variable engine valve system |
| 07/12/1994 | US5327856 Method and apparatus for electrically driving engine valves |
| 07/12/1994 | US5327814 Mechanical assemblies and methods of making same |
| 07/07/1994 | WO1994015075A1 Device with cams using incompressible fluid as structural element to bring about the deformation and/or displacement of cam profiles, in order to vary engine valve timing |
| 07/07/1994 | DE4314183A1 Lubrication system for cams on engine camshaft |
| 07/07/1994 | DE4244551A1 Variable control system for combustion engine valves |
| 07/07/1994 | DE4244550A1 Device for variably controlling valves in IC engine |
| 07/06/1994 | EP0605390A1 SOHC type internal combustion engine |
| 07/06/1994 | EP0604598A1 Mechanically retained wear-resistant ceramic pad |
| 06/30/1994 | DE4244287A1 Drive for inlet valves of combustion engine |
| 06/29/1994 | EP0603929A1 Method and apparatus for electrically driving engine valves |
| 06/23/1994 | WO1994013935A1 Valve control for an internal combustion engine |
| 06/15/1994 | EP0601250A1 Valve operating system in internal combustion engine |
| 06/14/1994 | US5320082 Valve-moving apparatus for internal combustion engine |
| 06/14/1994 | CA2054877C Low mass valve lifters |
| 06/09/1994 | DE4309860C1 Device for control of compressed air in cylinder of IC engine - involves control valve with switch valve down stream from which air is controllable in conduit connected to accumulator or exhaust gas conduit |
| 06/09/1994 | DE4240835A1 Control method for gas change in IC engine - has rotary sliding valve across inlet and outlet valves altering cross-section and gas velocity |
| 06/09/1994 | DE4240631A1 Stroke-piston IC engine with two gas exchange valves per cylinder |
| 06/08/1994 | EP0600381A1 A hydraulic actuating unit, in particular for controlling a valve of an internal-combustion engine |
| 06/08/1994 | EP0600221A2 Control device for valve system in automobile engine |
| 06/07/1994 | US5317999 Internal combustion engine for portable power generating equipment |
| 06/07/1994 | CA1330026C Lubricant supplying system for dohc type multi-cylinder internal combustion engine |
| 06/01/1994 | EP0636205A4 Valve control mechanism. |
| 06/01/1994 | EP0599322A1 Electronic control system for a variable geometry turbocompressor for an engine provided with a continuous braking device |
| 05/31/1994 | US5315974 Internal combustion engine with compressor function |
| 05/31/1994 | US5315961 Hydraulic valve tappet for an internal-combustion engine |
| 05/26/1994 | WO1994011632A1 Knocking noise avoiding device for an engine with a variable valve driving mechanism |
| 05/26/1994 | WO1994011628A1 Fuel controlling device for an engine with a cylinder idling function |
| 05/26/1994 | DE4243169C1 Variable valve control assembly - valve stroke change is effected by changing spring characteristics of springs |
| 05/19/1994 | DE4244726A1 Switchable valve drive for combustion engine - uses balls as driver elements to maintain contact with single cam between pair of cams |
| 05/19/1994 | DE4244288A1 Cup tappet for combustion engine - uses double piston device moving between tappet cup and central tappet member |
| 05/19/1994 | DE4238325A1 Switchable valve drive for combustion engine - uses balls as driver elements to maintain contact with single cam |
| 05/11/1994 | EP0596860A2 Method for variable valve timing for an internal combustion engine |
| 05/11/1994 | EP0596127A1 Automobile engine |
| 05/11/1994 | DE4336593A1 Control mechanism for valves in combustion engine - uses double cam working in conjunction with further single camwhich operates valve |
| 05/10/1994 | US5309881 Engine brake for a multicyclinder internal combustion engine |
| 05/10/1994 | US5309876 Automatic variator of valve overlap and valve section |
| 05/10/1994 | US5309872 Device for operating a valve in an internal combustion engine |
| 05/04/1994 | EP0595060A1 Internal combustion engine valve drive |
| 05/03/1994 | USRE34596 Valve driving system for internal combustion engine |
| 05/03/1994 | US5307768 Camshaft arrangement having angularly movable cams |
| 05/03/1994 | CA1329077C Valve operating mechanism in an internal combustion engine |
| 04/28/1994 | DE4236007A1 Four-stroke IC engine starting with air intake control - overrides normal operations of air, fuel and ignition controls in order to secure optimum mixture ratio for ignition |
| 04/28/1994 | DE4235626A1 Valve drive with alternating cams for gas exchange valves - has second U=shaped transfer lever and tappet, for large active lift |
| 04/27/1994 | EP0594104A1 Camshaft with variable inlet valer lift by cam displacement perpendicularly to its axis |
| 04/27/1994 | EP0593908A1 Engine brake with exhaust throttle |
| 04/26/1994 | US5305719 Engine camshaft deactivation mechanism |
| 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 |
| 04/12/1994 | US5301643 Low oil sensor using compression release to affect engine operation |
| 04/12/1994 | US5301636 Valve operating mechanism of internal combustion engine |
| 04/12/1994 | CA1328384C Engine retarding system of a gas compression release type |
| 04/06/1994 | EP0590577A1 System for controlling valve shift timing of an engine |
| 03/31/1994 | DE4232848A1 Ventilbetätigungsmechanismus A valve operating mechanism |
| 03/29/1994 | US5297516 Valve actuating apparatus |
| 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 |
| 03/24/1994 | DE4231467A1 Variable cam-operated valve gear for internal combustion engine - shortens admission time at low speeds by allowing relative rotation of cam on camshaft through axial movement of locking piston |
| 03/10/1994 | DE4230074A1 Stroke-piston IC engine with two gas exchange valves per cylinder |
| 03/09/1994 | EP0585568A1 Valve operating system for an internal combustion engine |