VARIABLE VALVE DRIVE WITH SWINGING LEVER Russian patent published in 2020 - IPC F01L1/12 F01L13/00 F02D13/02 

FIELD: engine building.

SUBSTANCE: invention can be used in the internal combustion engines. Variable valve drive (1) is intended for gas-distributing valve of internal combustion engine. Valve is installed with possibility of periodic movement between closed and open positions by means of camshaft (2) of distributing shaft (3). Valve drive (1) includes switched system of swinging levers for actuation of lifting valve, having swinging lever (10) and valve swinging lever (20). Transfer swinging lever (10) and valve rocking lever (20) rest on various axles (13), (23) of swinging lever, each of which is parallel to axis (3a) of distributing shaft (3). Valve rocker arm (20) is located at first end (21) in contact with lifting valve and has roller (26) at second end (22). Transfer swinging lever (10) is engaged on first end (11) with cam (2) of distributing shaft (3), and at second end (12) is in active connection through contour surface (16) with roller (26) of valve rocking lever (20) so, that rocking motion of swinging lever (10) creates rocking motion of valve rocking lever (20), at which roller (26) of valve swinging lever (20) rolls along contour surface (16). There is adjusting device for switching system of swinging levers, by means of which it is possible to turn contour surface (16) by means of planetary gear (19) around axis (13) of transmitting swinging lever (10), to shift roller (26) of swinging lever (20) along contour surface (16). Disclosed is a system comprising at least two variable valve actuators and a vehicle.

EFFECT: technical result consists in possibility of stepless change of time of opening and closing, as well as valve opening stroke, independent of available valve position.

10 cl, 6 dwg