FORCE TRANSMISSION MECHANISM, ITS APPLICATION AND VEHICLE INCLUDING THIS MECHANISM Russian patent published in 2022 - IPC F01L1/18 F01L1/344 F01L1/46 F01L13/00 

Abstract RU 2767581 C2

FIELD: engine building.

SUBSTANCE: invention can be used in engine timing mechanisms. Force transfer mechanism (10), in particular, rocker arm or swinging lever, is intended for creation of kinematic connection between camshaft and valve (12) of gas distribution mechanism, in particular, inlet valve of internal combustion engine. Mechanism includes main housing (14), control piston (20), contact element (28), first hydraulic locking piston (22), second hydraulic locking piston (24), damping chamber (35), stop (46) and valve clearance adjustment device (26). Main body (14) has cylindrical seat (16) extending along longitudinal axis (A). Control hydraulic piston (20) is made with possibility of back-and-forth movement between the first and second positions along longitudinal axis (A) in seat (16). Contact element (28) is intended for actuation of valve (12) of gas distribution mechanism. Valve (12) is kinematically connected to control piston (20) so that movement of control piston (20) along longitudinal axis (A) actuates contact element (28) along longitudinal axis (A), which changes valve (12) stroke. Hydraulic locking piston (22) is configured to reciprocate radially relative to longitudinal axis (A) between a third position in which first locking piston (22) locks control piston (20) in its first position, and a fourth position, wherein first locking piston (22) allows control piston (20) to move between its first and second positions inside seat (16). Damping chamber (35) is filled with control fluid and when control piston (20) is moved from the first position to the second one, it is emptied to damp movement of control piston (20). Damping chamber (35) is limited by control piston (20) and seat (16). Anti-rotation lock (46) prevents rotation of the first locking piston (22) and/or the second locking piston (24). Hydraulic or mechanical valve clearance adjustment device (26) is kinematically connected to control piston (20) and contact element (28) and is made to compensate for the gap between the valve and contact element (28). Application of force transfer mechanism and vehicle are disclosed.

EFFECT: higher reliability and simplified design.

12 cl, 11 dwg

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RU 2 767 581 C2

Authors

Peter Bogdanski

Dates

2022-03-17Published

2018-06-20Filed