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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 |
| 7331316 |
Control apparatus and control method for internal combustion engine |
Feb. 19, 2008 |
| 7328683 |
Method and device for controlling the transition in a direct injection internal combustion engine |
Feb. 12, 2008 |
| 7328674 |
Rotary valve system and engine using the same |
Feb. 12, 2008 |
| 7328673 |
Valve timing correction control apparatus and method for an internal combustion engine |
Feb. 12, 2008 |
| 7325521 |
System and method for improved cam retard |
Feb. 5, 2008 |
| 7325520 |
Rotary valve system and engine using the same |
Feb. 5, 2008 |
| 7322328 |
Variable cam follower for an internal combustion engine |
Jan. 29, 2008 |
| 7322326 |
Valve timing control apparatus |
Jan. 29, 2008 |
| 7322325 |
Apparatus and methods for varying valve lift in an internal combustion engine |
Jan. 29, 2008 |
| 7322324 |
Valve operating apparatus of internal combustion engine |
Jan. 29, 2008 |
| 7322323 |
Valve actuation control apparatus for internal combustion engine |
Jan. 29, 2008 |
| 7320307 |
Manifold pressure control for a variable event valvetrain |
Jan. 22, 2008 |
| 7318427 |
Method for operating an internal combustion engine |
Jan. 15, 2008 |
| 7318409 |
Vehicle engine control system utilizing humidity sensor |
Jan. 15, 2008 |
| 7318401 |
Variable chamber volume phaser |
Jan. 15, 2008 |
| 7318400 |
Locking pin mechanism for a vane-type cam phaser |
Jan. 15, 2008 |
| 7318398 |
Engine valve actuation system |
Jan. 15, 2008 |
| 7318314 |
Method of controlling a supercharged internal-combustion engine with at least two cylinders and engine using such a method |
Jan. 15, 2008 |
| 7316626 |
Engine |
Jan. 8, 2008 |
| 7316213 |
Valve timing control device and control method for internal combustion engine |
Jan. 8, 2008 |
| 7316212 |
Cam phase control system for internal combustion engine |
Jan. 8, 2008 |
| 7316211 |
Adjusting device |
Jan. 8, 2008 |
| 7316210 |
Control apparatus and control method for variable valve actuation mechanism of internal combustion engine |
Jan. 8, 2008 |
| 7314030 |
Valve timing adjusting apparatus |
Jan. 1, 2008 |
| 7314028 |
Control apparatus for internal combustion engine |
Jan. 1, 2008 |
| 7313918 |
Alternative (reciprocating) engine with recirculation of exhaust gases intended for the propulsion of automobiles and method turbocharging these motors |
Jan. 1, 2008 |
| 7311078 |
Engine control system using valve opening parameter |
Dec. 25, 2007 |
| 7311072 |
Control unit for a valve, especially a gas exchange valve of an internal combustion engine |
Dec. 25, 2007 |
| 7311071 |
Variable valve timing control apparatus of internal combustion engine |
Dec. 25, 2007 |
| 7311070 |
Variable valve system of internal combustion engine and method of assembling same |
Dec. 25, 2007 |
| 7311069 |
Variable valve timing control device |
Dec. 25, 2007 |
| 7308878 |
Valve timing control apparatus |
Dec. 18, 2007 |
| 7308877 |
Variable valve timing controller for internal combustion engine |
Dec. 18, 2007 |
| 7308876 |
Electrically driven camshaft adjuster |
Dec. 18, 2007 |
| 7308873 |
Variable valve control system for internal combustion engine |
Dec. 18, 2007 |
| 7308871 |
Control apparatus for variable valve apparatus and method thereof |
Dec. 18, 2007 |
| 7305957 |
Valve timing control apparatus and method for internal combustion engine |
Dec. 11, 2007 |
| 7305950 |
Method for control of dilution in engines during variable camshaft phasing |
Dec. 11, 2007 |
| 7305949 |
Stamped target wheel for a camshaft phaser |
Dec. 11, 2007 |
| 7305948 |
Device for changing the timing of an internal-combustion engine |
Dec. 11, 2007 |
| 7305947 |
Sealing element and pivoting motor |
Dec. 11, 2007 |
| 7305946 |
Variable valve operating apparatus for internal combustion engine |
Dec. 11, 2007 |
| 7305945 |
Method for changing the lift of an inlet valve of an internal combustion engine |
Dec. 11, 2007 |
| 7302921 |
Detection of a specific faulted DOD electrohydraulic circuit |
Dec. 4, 2007 |
| 7299788 |
Internal combustion engine and method of detecting abnormality of internal combustion engine |
Nov. 27, 2007 |
| 7299775 |
Variable valve operating device |
Nov. 27, 2007 |
| 7299623 |
Method for controlling exhaust gas temperature and space velocity during regeneration to protect temperature sensitive diesel engine components and aftertreatment devices |
Nov. 27, 2007 |
| 7296547 |
Device for adjusting the camshaft of an internal combustion engine and a mounting tool |
Nov. 20, 2007 |
| 7296546 |
Device for the variable actuation of the gas exchange valves of internal combustion engines, and method for operating one such device |
Nov. 20, 2007 |
| 7295912 |
Intake air volume controller of internal combustion engine |
Nov. 13, 2007 |
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