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Class Information
Number: 123/90.15
Name: Internal-combustion engines > Poppet valve operating mechanism > With means for varying timing
Description: Device wherein means provided to vary the time, extent of duration of valve opening relative to the operating cycle of the engine.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6738706 |
Method for estimating engine parameters |
May. 18, 2004 |
| 6735937 |
Engine air and fuel control |
May. 18, 2004 |
| 6736093 |
Device for controlling at least one gas-changing of an internal combustion engine |
May. 18, 2004 |
| 6736094 |
VCT solenoid dither frequency control |
May. 18, 2004 |
| 6736095 |
Extended duration cam lobe for variable valve actuation mechanism |
May. 18, 2004 |
| 6736096 |
Method and apparatus for setting valve lift within a cylinder |
May. 18, 2004 |
| 6736097 |
Apparatus and method for maintaining controlled orientation of a roller lifter follower used in conjunction with a variable phased valve lifter |
May. 18, 2004 |
| 6732687 |
Lash adjuster with locking balls deactivation |
May. 11, 2004 |
| 6732688 |
Valve timing control system for internal combustion engine |
May. 11, 2004 |
| 6732689 |
Valve timing control apparatus for internal combustion engine |
May. 11, 2004 |
| 6732690 |
Camshaft phaser having an external bias spring |
May. 11, 2004 |
| 6732691 |
Engine phaser control system using phaser instability measurement |
May. 11, 2004 |
| 6729126 |
Internal combustion engine having variable valve control system and NOx catalyst |
May. 4, 2004 |
| 6729279 |
Apparatus for controlling at least one engine valve in a combustion engine |
May. 4, 2004 |
| 6729280 |
Reference position learning apparatus and method of a variable valve-timing controlling system |
May. 4, 2004 |
| 6729282 |
Variable valve lift device |
May. 4, 2004 |
| 6729283 |
Externally mounted vacuum controlled actuator with position sensor control means to reduce functional and magnetic hysteresis |
May. 4, 2004 |
| 6729284 |
Internal combustion engine with variable cam timing oil filter with restrictor arrangement |
May. 4, 2004 |
| 6729304 |
Fuel injection control system, fuel injection control method, and engine control unit, for internal combustion engine |
May. 4, 2004 |
| 6725816 |
Apparatus for and method of controlling solenoid-operated valve device, and recording medium storing control program for solenoid-operated valve device |
Apr. 27, 2004 |
| 6725817 |
Variable phase drive mechanism |
Apr. 27, 2004 |
| 6728624 |
Method for estimating the filling of a cylinder in an internal combustion engine |
Apr. 27, 2004 |
| 6722121 |
Control strategy for regenerating a NOx adsorber catalyst in an exhaust system of an engine having a variable valve actuation mechanism |
Apr. 20, 2004 |
| 6722325 |
Variable valve control apparatus for engine and method thereof |
Apr. 20, 2004 |
| 6722327 |
Device and method for changing the relative rotational angle of a camshaft |
Apr. 20, 2004 |
| 6722328 |
Control method for dual dependent variable CAM timing system |
Apr. 20, 2004 |
| 6722329 |
Locking pin mechanism for a camshaft phaser |
Apr. 20, 2004 |
| 6722330 |
Retention bolt for a cam phaser |
Apr. 20, 2004 |
| 6718920 |
Camshaft rotational phase detecting apparatus and cylinder intake air quantity calculating apparatus for engine |
Apr. 13, 2004 |
| 6718921 |
Method and apparatus for cleaning an oil control valve for an internal combustion engine |
Apr. 13, 2004 |
| 6718922 |
Cam phase control apparatus and method, and engine control unit for internal combustion engine |
Apr. 13, 2004 |
| 6718928 |
Method for starting a multi-cylinder internal combustion engine |
Apr. 13, 2004 |
| 6718957 |
Intelligent control to stabilize auto-ignition combustion without rapid pressure increase |
Apr. 13, 2004 |
| 6708657 |
Apparatus and method for controlling variable valve timing mechanism |
Mar. 23, 2004 |
| 6708659 |
Four cycle engine for marine drive |
Mar. 23, 2004 |
| 6705256 |
Valve timing control system for internal combustion engine |
Mar. 16, 2004 |
| 6705257 |
Apparatus and method for controlling variable valve in internal combustion engine |
Mar. 16, 2004 |
| 6705258 |
Valve system for variable displacement diesel engine |
Mar. 16, 2004 |
| 6705260 |
Reed valve VCT phaser with worm trails |
Mar. 16, 2004 |
| 6705284 |
Engine method |
Mar. 16, 2004 |
| 6701903 |
Method of determining valve events to optimize engine operating parameters |
Mar. 9, 2004 |
| 6704641 |
Automotive integrated control system |
Mar. 9, 2004 |
| 6704642 |
Valve timing control apparatus and method of internal combustion engine |
Mar. 9, 2004 |
| 6694933 |
Lost motion system and method for fixed-time valve actuation |
Feb. 24, 2004 |
| 6694935 |
Valve mechanism of internal combustion engine |
Feb. 24, 2004 |
| 6694948 |
Vacuum management system on a variable displacement engine |
Feb. 24, 2004 |
| 6691506 |
Device and method for controlling variable valve timing of internal combustion engine |
Feb. 17, 2004 |
| 6691653 |
Electronic method and device for the control of gas exchange valves of an internal combustion engine having a variable opening function |
Feb. 17, 2004 |
| 6691655 |
Control system and method for an internal combustion engine |
Feb. 17, 2004 |
| 6688264 |
Method of piloting electromagnetic actuators for the control of a plurality of valves of an engine |
Feb. 10, 2004 |
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