Patent ID: 9556736
Date: 2017-01-31
CPC Classifications: F01B,F04B,F04F

Claim:
1. A hydraulic pressure exchanger comprising a drum rotatable about an axis, a front plate arrangement having a front plate and a pressure shoe, said drum comprising a plurality of working cylinders, each working cylinder having a front opening, during rotation of said drum, each front opening sliding over said pressure shoe along a path, said pressure shoe having at least two kidney-shaped openings, said kidney-shaped openings being arranged in said path, wherein said pressure shoe is arranged between said drum and said front plate and comprises at least one pressure cylinder arranged between two neighboring kidney-shaped openings, a piston being arranged in at least one pressure cylinder, said piston resting against said front plate, said at least one pressure cylinder being connected with a supply opening in a side of the pressure shoe opposite said front plate, said supply opening at least partly overlapping said path.