VARIABLE CONTROL PROCESS AND DEVICE FOR AN INTERNAL COMBUSTION ENGINE VALVE

PCT No. PCT/DE94/00786 Sec. 371 Date Mar. 3, 1995 Sec. 102(e) Date Mar. 3, 1995 PCT Filed Jul. 6, 1994 PCT Pub. No. WO95/02116 PCT Pub. Date Jan. 19, 1995A method and a device for the variable control of a valve of an internal combustion engine, in particular for a throttlefree load control of an Ot...

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Bibliographic Details
Main Authors HEUSER, PETER, KREUTER, PETER, REINICKE-MURMANN, JOACHIM
Format Patent
LanguageEnglish
French
German
Published 28.06.1995
Edition6
Subjects
BLASTING
COMBUSTION ENGINES
COMBUSTION ENGINES IN GENERAL
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
ENGINE PLANTS IN GENERAL
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
INTERNAL-COMBUSTION PISTON ENGINES
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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Summary:PCT No. PCT/DE94/00786 Sec. 371 Date Mar. 3, 1995 Sec. 102(e) Date Mar. 3, 1995 PCT Filed Jul. 6, 1994 PCT Pub. No. WO95/02116 PCT Pub. Date Jan. 19, 1995A method and a device for the variable control of a valve of an internal combustion engine, in particular for a throttlefree load control of an Otto carburetor engine via a lift function of one or several intake valves per cylinder are presented. Thereby the cams of two camshafts which normally rotate at the same speed are followed by a feeler-device in the manner of an adder and the movement of the feeler-device is transferred to an actuating device for actuating the valve. The cams of one of the camshafts which operates as the opening camshaft is provided with a flat section and a lobe which pass into each other via an opening portion. The cam of the other one of the camshafts which operates as the closing camshaft is provided with a lobe and a flat section which pass into each other via a closing portion. For altering the lift and/or opening duration of the valve the phase relationship between the camshafts is changeable. The feeler-device is, after the closing of the valve, held in contact with the cam of only one of the camshafts, and through this the actuating device is held in contact with the valve. The cam of the other camshaft gets out of contact with the feeler device after the closing of the valve and at the beginning of opening of the valve again gets into contact with the feeler device.
Bibliography:Application Number: EP19940920391