Hydrostatic pump assembly has two displacement pumps, where former displacement pump has working space with high pressure medium flow path that is brought into pressure fluid connection with another working space of latter displacement pump

摘要

The hydrostatic pump assembly (1) has two displacement pumps (2,4), where the former displacement pump has a working space (42) with a high pressure medium flow path (62), which is brought into pressure fluid connection with another working space (44) of the latter displacement pump with another high pressure medium flow path (64). The hydrostatic pump assembly is configured, such that the phase shift between the two pulsations of a resultant pulsation is minimized at or behind a junction (66).