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Class Information
Number: 123/90.17
Name: Internal-combustion engines > Poppet valve operating mechanism > With means for varying timing > Camshaft or cam characteristics
Description: Device wherein the means varies the structure or the axial disposition of a camshaft or its cam.

Sub-classes under this class:

Class Number Class Name Patents
123/90.18 Axially shiftable camshaft 174

Patents under this class:

Patent Number Title Of Patent Date Issued
RE44864 Switching element for a valve train of an internal combustion engine Apr. 29, 2014
8695550 Valve timing controller Apr. 15, 2014
8695549 Valve train for internal combustion engines for actuating gas exchange valves Apr. 15, 2014
8695548 Valve timing control apparatus Apr. 15, 2014
8695545 Phase changing device of camshaft Apr. 15, 2014
8695544 High expansion ratio internal combustion engine Apr. 15, 2014
8692492 Lead angle value setting method, motor driving control circuit, and brushless motor Apr. 8, 2014
8689750 Camshaft phasing device Apr. 8, 2014
8689749 Valve timing controller Apr. 8, 2014
8689748 Valve timing control apparatus of internal combustion engine Apr. 8, 2014
8689747 Valve timing control device Apr. 8, 2014
8689746 Device for the variable adjustment of valve lift curves of gas exchange valves of an internal combustion engine Apr. 8, 2014
8688345 Electric motors Apr. 1, 2014
8683968 Variable valve assembly for internal combustion engine Apr. 1, 2014
8683967 Displacement groove contour of sliding cam assemblies of an internal combustion reciprocating piston engine Apr. 1, 2014
8683966 Camshaft adjustment device for an internal combustion engine Apr. 1, 2014
8683965 Engine assembly including camshaft actuator Apr. 1, 2014
8682569 Systems and methods for diagnosing valve lift mechanisms and oil control valves of camshaft lift systems Mar. 25, 2014
8677963 Electrical camshaft phaser with energy recovery Mar. 25, 2014
8677962 Cam phaser locking systems Mar. 25, 2014
8677961 Harmonic drive camshaft phaser with lock pin for selectivley preventing a change in phase relationship Mar. 25, 2014
8677960 Camshaft adjuster, in particular with camshaft Mar. 25, 2014
8677959 Variable valve timing controller for internal combustion engine Mar. 25, 2014
8677956 Control valve for a device for variably adjusting the control times of gas-exchange valves of an internal combustion engine Mar. 25, 2014
8671900 Device for variably adjusting the control times of gas exchange valves of an internal combustion engine Mar. 18, 2014
8667939 Variable valve actuation apparatus, system and method Mar. 11, 2014
8667938 Combustion engine with variable valve actuation Mar. 11, 2014
8667937 Apparatus for sensing cam phaser position Mar. 11, 2014
8662042 Controller for internal-combustion engine Mar. 4, 2014
8662041 Device for variable adjustment of the control times of gas exchange valves of an internal combustion engine Mar. 4, 2014
8662040 Oscillating-motor camshaft adjuster having a hydraulic valve Mar. 4, 2014
8662039 Camshaft phaser with coaxial control valves Mar. 4, 2014
8662038 Traction mechanism drive with a compensating device for vibration reduction Mar. 4, 2014
8656876 Valve timing control apparatus Feb. 25, 2014
8656875 Cellular wheel Feb. 25, 2014
8656874 Control device of actuator Feb. 25, 2014
8651077 Fluid-pressure-operated valve timing controller Feb. 18, 2014
8651076 Adjusting system for camshafts of an internal combustion engine Feb. 18, 2014
8651075 Engine assembly including camshaft with independent cam phasing Feb. 18, 2014
8651074 Variable valve timing device Feb. 18, 2014
8646424 Variable valve timing device Feb. 11, 2014
8640663 Oil pressure control apparatus Feb. 4, 2014
8640662 Valve timing control apparatus and method Feb. 4, 2014
8640661 Continuous variable valve timing apparatus Feb. 4, 2014
8640334 Method of setting lash in a cam phaser Feb. 4, 2014
8635988 Variable valve device for internal combustion engine Jan. 28, 2014
8635978 Rotor for a camshaft adjuster and camshaft adjuster Jan. 28, 2014
8631774 Valve timing control apparatus and valve timing control mechanism Jan. 21, 2014
8631773 Valve timing adjuster Jan. 21, 2014
8627795 Camshaft arrangement Jan. 14, 2014

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