DRIVING DEVICE OF CONTROLLED VALVES FOR INTERNAL COMBUSTION ENGINE Russian patent published in 2013 - IPC F01L1/34 F01L1/04 F02D13/02 

FIELD: engines and pumps.

SUBSTANCE: driving device of controlled valves for an internal combustion engine designed to vary difference of phases between a pair of inlet valves specified for an engine cylinder or a difference of phases between a pair of outlet valves designed for an engine cylinder, comprises an assembled distributing shaft and a module of cam phase variation. The distributing shaft includes a shaft element, which is driven by means of a crank shaft of the engine and which has the first cam formed on it for actuation of one of the pair of inlet or outlet valves, and a cam contour comprising the second cam for actuation of the other one from the pair of the inlet or outlet valves and installed around the shaft element as capable of displacement relative to the element of the shaft in the circumferential direction of the shaft element. The module of cam phase variation is made as capable of variation of the phase of the second cam relative to the phase of the first cam. The cam contour has a hollow protruding bushing installed around the shaft element. The protruding bushing protrudes from one side of the second cam arranged opposite to the first cam in direction of width of the second cam at the distance exceeding the width of the second cam.

EFFECT: reduced inaccuracy of arrangement of a protruding bushing.

8 cl, 9 dwg