VALVE TRAIN Russian patent published in 2019 - IPC F01L1/18 F01L1/20 F01L1/30 

FIELD: internal combustion engines.

SUBSTANCE: invention can be used in the internal combustion engines valve trains. Valve train comprises camshaft (1) with cams (2) and the valves (3) drive lever mechanism. On the valves (3) stems retaining rings (8), springs (10) and movable rings (9) are placed. Valve springs (6) are placed under the levers (7) lower surfaces. During the camshaft (1) rotation, the cam (2) runs on the lever (7) upper surface. Turning on the located in the post (5) axis (4), the lever (7) is lowering, overcoming the valve spring (6) resistance. Lever (7) pushing end covers the valve (3) stem by acting on the retaining ring (8), rigidly connected to the valve (3) stem. Lever (7) pushing end opens the valve (3). During the camshaft (1) further rotation, the cam (2) runs off from the lever (7). Under the influence of the valve spring (6) reverse stroke the lever (7) rises. By the pushing end acting on the locking ring (8) via the movable ring (9) and the spring (10), the lever (7) closes the valve (3).

EFFECT: technical result consists in reduction of the valve train parts and its drive belt contacting surfaces wear intensity, the valve spring stroke value reduction, increase in the engine rotation frequency and increase in the engine power.

1 cl, 2 dwg