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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 |
| 7213550 |
Internal combustion engine and valve timing control method |
May. 8, 2007 |
| 7210457 |
Homogeneous charge compression ignition internal combustion engine |
May. 1, 2007 |
| 7210434 |
Hydraulic cam for variable timing/displacement valve train |
May. 1, 2007 |
| 7209823 |
Controller |
Apr. 24, 2007 |
| 7207322 |
Supercharger installation with load control for internal combustion engines |
Apr. 24, 2007 |
| 7207301 |
Valve lash adjustment apparatus and method |
Apr. 24, 2007 |
| 7204227 |
System and method for reducing NOx emissions in an apparatus having a diesel engine |
Apr. 17, 2007 |
| 7204217 |
Hydraulic camshaft adjuster for a camshaft of an internal combustion engine |
Apr. 17, 2007 |
| 7204216 |
Variable valve mechanism |
Apr. 17, 2007 |
| 7204215 |
Valve characteristic controller and control method for internal combustion engine |
Apr. 17, 2007 |
| 7204214 |
Multi-cylinder internal combustion engine |
Apr. 17, 2007 |
| 7204213 |
Air and fuel supply system for combustion engine |
Apr. 17, 2007 |
| 7204211 |
Arrangement of an internal combustion engine poppet valve and an actuator therefor |
Apr. 17, 2007 |
| 7204210 |
Reducing power consumption and noise of electrically actuated valves |
Apr. 17, 2007 |
| 7201124 |
Phase displacement device |
Apr. 10, 2007 |
| 7201123 |
Method and device for operating an internal combustion engine of a vehicle |
Apr. 10, 2007 |
| 7198031 |
Control device of internal combustion engine |
Apr. 3, 2007 |
| 7198015 |
Variable valve timing system |
Apr. 3, 2007 |
| 7198014 |
Valve timing control apparatus and method for setting minimum torque |
Apr. 3, 2007 |
| 7198013 |
Device and method for the relative rotational adjustment of a camshaft and a drive wheel of an internal combustion engine |
Apr. 3, 2007 |
| 7198012 |
Valve timing control apparatus for internal combustion engine |
Apr. 3, 2007 |
| 7194998 |
Control apparatus and control method for internal combustion engine |
Mar. 27, 2007 |
| 7194992 |
Hydraulic cushioning of a variable valve timing mechanism |
Mar. 27, 2007 |
| 7194990 |
Electro-hydraulic engine valve actuation |
Mar. 27, 2007 |
| 7191744 |
Exhaust valve drive control method and device |
Mar. 20, 2007 |
| 7191589 |
Control system for internal combustion engine |
Mar. 20, 2007 |
| 7191054 |
Fail-safe control apparatus for internal combustion engine equipped with variable valve characteristic mechanisms and method thereof |
Mar. 13, 2007 |
| 7191050 |
Variable valve control apparatus for internal combustion engine and method thereof |
Mar. 13, 2007 |
| 7188596 |
Vane-type camshaft adjuster |
Mar. 13, 2007 |
| 7188594 |
Apparatus and method for controlling variable valve actuation mechanism |
Mar. 13, 2007 |
| 7188593 |
Controller for automobile |
Mar. 13, 2007 |
| 7188020 |
Control system |
Mar. 6, 2007 |
| 7185627 |
Control apparatus for internal combustion engine |
Mar. 6, 2007 |
| 7185617 |
Electromagnetic valve actuating device for an internal combustion engine |
Mar. 6, 2007 |
| 7184880 |
Method and device for determining the phase position of a camshaft of an internal combustion engine |
Feb. 27, 2007 |
| 7184879 |
Method for controlling valves during the stop of an engine having a variable event valvetrain |
Feb. 27, 2007 |
| 7182053 |
Camshaft adjuster for an internal combustion engine |
Feb. 27, 2007 |
| 7182052 |
Valve timing controller |
Feb. 27, 2007 |
| 7182051 |
Electromechanical valve actuator for internal combustion engines and internal combustion engine equipped with such an actuator |
Feb. 27, 2007 |
| 7181905 |
Lean-burn engine exhaust air-fuel and temperature management strategy for improved catalyst durability |
Feb. 27, 2007 |
| 7181330 |
Control apparatus |
Feb. 20, 2007 |
| 7178495 |
Adjusting device for camshafts, particularly for motor vehicles |
Feb. 20, 2007 |
| 7178494 |
Variable valve timing controller for internal combustion engine |
Feb. 20, 2007 |
| 7178493 |
Method and system to avoid piston-valve collision |
Feb. 20, 2007 |
| 7178492 |
Air and fuel supply system for combustion engine |
Feb. 20, 2007 |
| 7178491 |
Control system and method for engine valve actuator |
Feb. 20, 2007 |
| 7178490 |
Device for hydraulic valve lift switching |
Feb. 20, 2007 |
| 7174887 |
Variable valve system |
Feb. 13, 2007 |
| 7174880 |
Method for operation of an internal combustion engine |
Feb. 13, 2007 |
| 7174870 |
Valve train of an internal combustion engine comprising a tappet and a hollow tappet pushrod |
Feb. 13, 2007 |
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