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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 |
| 7406942 |
Direct-injection internal combustion engine and method of controlling the direct-injection internal combustion engine |
Aug. 5, 2008 |
| 7406935 |
Variable valve timing control apparatus of internal combustion engine |
Aug. 5, 2008 |
| 7406934 |
Valve timing controller with separating member |
Aug. 5, 2008 |
| 7406933 |
Variable valve timing apparatus with reduced power consumption and control method thereof |
Aug. 5, 2008 |
| 7406931 |
Control apparatus for internal combustion engine |
Aug. 5, 2008 |
| 7404385 |
Lift-variable valve-operating system for internal combustion engine |
Jul. 29, 2008 |
| 7404384 |
Variable valve device for internal combustion engine |
Jul. 29, 2008 |
| 7404382 |
Variable engine valve control system with pressure difference |
Jul. 29, 2008 |
| RE40439 |
Method to control electromechanical valves |
Jul. 22, 2008 |
| 7401583 |
Adjustable valve timing system |
Jul. 22, 2008 |
| 7401582 |
Camshaft phaser having designated contact vane |
Jul. 22, 2008 |
| 7401581 |
Variable valve apparatus for internal combustion engine |
Jul. 22, 2008 |
| 7401579 |
Valve timing control device |
Jul. 22, 2008 |
| 7398772 |
Control apparatus for multi-cylinder internal combustion engine and control method |
Jul. 15, 2008 |
| 7398751 |
Control device for engine valve and control system for engine |
Jul. 15, 2008 |
| 7398750 |
Valve mechanism for internal combustion engine |
Jul. 15, 2008 |
| 7398744 |
Method for the operation of an internal combustion engine |
Jul. 15, 2008 |
| 7398644 |
System and method for reducing NOx emissions in an apparatus having a diesel engine |
Jul. 15, 2008 |
| 7395798 |
Engine for leisure vehicle with lubricating oil pump and actuator drive oil pump |
Jul. 8, 2008 |
| 7395791 |
Valve timing controller with a stopper |
Jul. 8, 2008 |
| 7395668 |
Turbo charged diesel-type piston engine and method for controlling such an engine |
Jul. 8, 2008 |
| 7392795 |
Internal combustion engine and combustion control method |
Jul. 1, 2008 |
| 7392786 |
Internal combustion engine shut-down for engine having adjustable valves |
Jul. 1, 2008 |
| 7392774 |
Method for controlling valve overlap of a variable valvetrain engine |
Jul. 1, 2008 |
| 7392773 |
Lift-variable valve-operating system for internal combustion engine |
Jul. 1, 2008 |
| 7392772 |
Primary and offset actuator rocker arms for engine valve actuation |
Jul. 1, 2008 |
| 7389756 |
Control valve for an apparatus for variable setting of the control times of gas exchange valves of an internal combustion engine |
Jun. 24, 2008 |
| 7387097 |
INA-schaeffler KG, industriestrasse 1-3, 91074 herzogenaurach ANR 12 88 48 20 |
Jun. 17, 2008 |
| 7387095 |
Hydraulic valve actuation systems and methods to provide variable lift for one or more engine air valves |
Jun. 17, 2008 |
| 7387094 |
Electromagnetically driven valve |
Jun. 17, 2008 |
| 7386390 |
Variable valve control apparatus for internal combustion engine and method thereof |
Jun. 10, 2008 |
| 7386387 |
Method for controlling an internal combustion engine using valve lift switchover |
Jun. 10, 2008 |
| 7383803 |
Valve timing control device for internal combustion engine |
Jun. 10, 2008 |
| 7383802 |
Valve timing adjusting apparatus |
Jun. 10, 2008 |
| 7383801 |
Valve gear for load change valves of internal combustion engines |
Jun. 10, 2008 |
| 7383800 |
Assembly for actuating apparatus |
Jun. 10, 2008 |
| 7383799 |
Method for monitoring the operating condition of an engine valve system |
Jun. 10, 2008 |
| 7383119 |
Method for controlling valves during the stop of an engine having a variable event valvetrain |
Jun. 3, 2008 |
| 7383117 |
Method for optimizing a valve-lift changeover on spark-ignition engines |
Jun. 3, 2008 |
| 7380535 |
Method and device for operating an internal combustion engine having multiple cylinders |
Jun. 3, 2008 |
| 7380530 |
Camshaft adjuster with a superposition drive |
Jun. 3, 2008 |
| 7380529 |
Method for adjusting an angle of rotation, and phase displacement device for carrying out said method |
Jun. 3, 2008 |
| 7380528 |
Method for operating a hydraulic actuator, especially a gas exchange valve of an internal combustion engine |
Jun. 3, 2008 |
| 7379809 |
Control system |
May. 27, 2008 |
| 7377273 |
Air-fuel ratio control apparatus for internal combustion engine |
May. 27, 2008 |
| 7377245 |
Valve timing controller |
May. 27, 2008 |
| 7377244 |
Camshaft adjuster for an internal combustion engine and a method for operating a camshaft adjuster |
May. 27, 2008 |
| 7377241 |
Valve operating system for internal combustion engine |
May. 27, 2008 |
| 7377240 |
Method for operating an internal combustion engine |
May. 27, 2008 |
| 7373923 |
Variable event valvetrain operation during an engine start |
May. 20, 2008 |
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