Patent ID: 11965498
Assignee: ZF CV SYSTEMS EUROPE BV
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 20:
21. A method for operating a pressure control system having a multistage compressor, the method comprising:
drawing in a pressure medium from an ambient environment;
driving a motor to compress the pressure medium from the ambient environment with a first compression stage;
driving the motor to further compress the pressure medium compressed by the first compression stage with a second compression stage;
driving the motor to further compress the pressure medium compressed by the second compression stage with the first compression stage;
diverting the pressure medium further compressed by the first compression stage around the second compression stage such that the pressure medium further compressed by the first compression stage is not compressed again by the second compression stage; and
outputting the pressure medium further compressed by the first compression stage to fill a pressure reservoir or a plurality of pressure medium chambers.