Paddle blade hydraulic pump assembly

摘要

The ring locates at least on an outer peripheral area on both pressure plates and a pressure space is formed between the second pressure plate and the housing. A distance device (14) is provided, which supports the first pressure plate (27) at a distance from the housing (5). The distance device is fitted in an inner surface area of the first pressure plate, opposite to the through passage aperture (26). The housing (5) has two parts (7,9), which have a recess (11,17), the depth of which is variable.