ICE VALVE TUNING PHASE DEVICE Russian patent published in 2017 - IPC F01L1/344 F02D13/02 

FIELD: engines and pumps.

SUBSTANCE: ICE valve tuning device comprises a drive element with a plate (1), connected with the engine crankshaft, arranged coaxially with the camshaft. The drive element with the plate (1) and the camshaft (2) are interconnected by a centrifugal phase adjuster. The phase adjuster is mounted on the drive element plate (1) and has an assembly of transmitting a control force on the camshaft (2) in the form of a gear with one driven element (3). The driven element (3) is rigidly connected to the camshaft (2) and to two or more driving elements (4), on each of which a centrifugal lever (5) is rigidly fixed, weighted by the mass (6). Each centrifugal lever (5) is two-link. The end of the centrifugal lever (5), weighted by the mass (6), rests on a cylindrical surface (7) of curvature variable with the possibility of moving along it under the action of centrifugal forces within the range limited by adjustable stops (9), (10). The mass (6) movement pattern is located in the plane of the centrifugal mechanism gear.

EFFECT: constant provision of the specified valve timing, high-speed mode of the engine in the entire range of operating modes.

1 dwg