STEERING BOOSTER PUMP FLOW RATE AND PRESSURE LIMITER Russian patent published in 2008 - IPC F15B13/42 F04B49/08 B62D5/65 

FIELD: engines and pumps.

SUBSTANCE: proposed limiter is intended for vale hydraulic hardware, particularly, for the car steering booster flow rate and pressure limiters. The aforesaid pressure limiter comprises casing with drain and through channels, the through channel being communicated with cylindrical bore housing spring-loaded flow rate valve spool furnished safety valve arranged inside the latter on the spring side. The bore space on the aforesaid valve side communicates, via a throttle, with the controlled flow rate channel, in its turn, communicating, via a throttle, with the through channel. There is a filter element arranged ahead of the throttling channel to allow a purified liquid to flow the said filter element.

EFFECT: stable and reliable operation.

4 cl, 2 dwg