VARIABLE-SPEED DRIVE OF INTERNAL COMBUSTION ENGINE VALVES Russian patent published in 2011 - IPC F01L13/00 

FIELD: engines and pumps.

SUBSTANCE: variable-speed drive of internal combustion engine valves includes a cam (16) installed with the possibility of rotation at camshaft drive (10) and adjustable valve mechanism that comprises drive shoulder (31) attached near one cam (16) end at camshaft drive (10), eccentric shaft element (33) that is installed with the possibility of rotation opposite the cam (16) in relation to drive shoulder (31) at camshaft drive (10) has outer peripheral surface with eccentricity in relation to camshaft drive axis and is performed with the possibility of eccentricity adjustment, and intermediate rotating element (32) that is installed with the possibility of rotation via bearing element (34) round eccentric shaft element (33) and connected to drive shoulder (31). Note that drive shoulder (31) includes end face that is covered by bearing element (34) when it protrudes along camshaft drive (10) axis and this end surface protrudes further than cam (16) end surface towards bearing element (34).

EFFECT: drive structure simplification.

3 cl, 6 dwg