ADVANCED HYDRAULIC DAMPER SPOOL VALVE Russian patent published in 2023 - IPC F16F9/34 

FIELD: damping devices.

SUBSTANCE: inventions group relates to damping devices. The spool valve (15) of the hydraulic damper includes a pair of elastic elements (47, 49) of energy storage, one of which is located between each of the spools (39, 41) of the valve and the separating section (27) of the valve body for displacing the spools (39, 41) valve in opposite directions with respect to the forces generated by the operating pressures in the hydraulic fluid of the hydraulic damper (1). The valve spools (39, 41) are configured to change the hydraulic flow restriction between the upper part (11) and the lower part (13) of the hydraulic damper (1). The compression hydraulic flow path is structurally separated from the return hydraulic flow path to prevent reverse flow through the other hydraulic flow path during hydraulic fluid flow in either direction, with each said flow path communicating with only at least one shaped orifice (35, 37) located near the opposite end of one of the bushings (23, 25) of the valve. A hydraulic damper assembly including such a valve is also claimed.

EFFECT: reduction in the number of moving parts, as well as an increase in the functionality of the hydraulic damper.

10 cl, 8 dwg