Importance

Loading Importance Indicators...

Abstract

A rotary pump for producing a pressure medium flow for a consumer, includes a pump housing in which a curved ring is inserted. A rotor is rotatably borne on a drive shaft in the curved ring. The rotor carries displacement elements at a tangential distance to one another which form a pump chamber between the rotor and the curved ring with a suction opening. A pressure medium-activated adjusting device is operable for changing the eccentricity of the curved ring relative to the rotor, and includes a first pressure chamber and a second pressure chamber fluidically and tangentially distanced from the first pressure chamber The pressure in the first and second pressure chambers is controlled by a flow control valve, the low pressure chamber of which communicates with a first control line on a downstream side of a metering orifice. The first control line, as seen from the rotational direction of the rotor, opens at the beginning of the pressure opening such that a tangential pulse of the pressure medium is led to the metering orifice and a second control line opens at a secondary connector into the pressure opening such that a tangential and radial pulse of the pressure medium is led to a high pressure chamber of the flow control valve.

Loading the Abstract Image...

First Claim