BUILT-IN QUICK-ACTION SHUTOFF VALVE Russian patent published in 2014 - IPC F16F9/34 F16F9/508 

FIELD: machine building.

SUBSTANCE: group of inventions relates to machine building. A shock absorber comprises a cylinder, a piston casing with compression and return channels, a piston rod. The first valve unit including the first valve disk and the second valve unit are engaged with the piston casing. A normally open valve receiving the piston travelling is connected to the piston rod and comprises the second valve disk. A shock absorber as per the second version additionally comprises a tube embracing the cylinder and forming a container chamber, and a base valve unit set between the working chamber and the container chamber. A shock absorber as per the seventh version additionally comprises the second piston with a channel engaged with the cylinder and set inside one of the working chambers. Other versions of a shock absorber are characterised by the location of the second valve disk.

EFFECT: faster action of valve units in a shock absorber.

66 cl, 14 dwg