HYDRAULIC SHOCK-ABSORBER Russian patent published in 2008 - IPC F16F5/00 F16F9/48 B60G11/26 

FIELD: transport.

SUBSTANCE: invention relates to hydraulic shock-absorbing struts, particularly, to the strut adjustment devices, primarily to such devices that allow stabilising the automotive suspension shock struts at ambient temperature varying from +40°C to -40°C irrespective of the used oil type. The hydraulic shock-absorber incorporates a hydraulic cylinder with drain ports communicating the piston and rod spaces, a rod, a drain port spring and drain port plate with one or several holes for oil to pass through. A part of one or several holes is constantly above the drain port or piston holes. The drain port twisted spring one end is rigidly attached to the plate, its second end being coupled with the rod. The said plate can rotate driven by the spring when the length of the latter varies at temperature variation. The said spring can be cylindrical connected to the plate via a sleeve rigidly linked with the plate and spring. Invention can be used, for example, in the VAZ-type car front suspension shock strut.

EFFECT: hydraulic shock strut featuring constant performances at whatever ambient temperature irrespective of the used oil type.

2 cl, 2 dwg