HYDRAULIC SUPPORT FOR VALVE DRIVE OF ENGINE Russian patent published in 1995 - IPC

FIELD: engine engineering. SUBSTANCE: hydraulic support has plunger set in the threaded bushing comprising surface calibrated over the inner diameter, cylindrical groove made in the surface, and threaded outer surface. The plunger has the spherical supporting surface for the lever provided with a tank for collecting oil and outlet openings for lubricating the spherical supporting surface, surface calibrated over the outer diameter and provided with the cylindric groove, radial oil passageways coupled with the groove, check valve with spring, return spring, and axial oil passageway between the check valve and radial oil passageways. The hydraulic support also has axial oil passageway between the check valve and radial oil passageways made in the plunger. The oil passageway is made up as through axial opening which is brought out on the spherical supporting surface for the lever coaxially to the opening made in the lever. EFFECT: enhanced reliability. 1 dwg