Abstract: A hydrostatic drive system consists of at least one hydraulic pump (100) and at least two hydraulic motors (104, 109, 125, 128, 131, 134, 137, 140). Said hydraulic pump (100) divides up its overall flow of hydraulic fluid over at least two partial flows of hydraulic fluid which are each delivered in a partial delivery line (101, 102) in a common cylinder drum (23) belonging to the hydraulic pump (100). A first hydraulic motor (104) driving a first drive line (105) is connected by its first connection (103) to the first connection (38) of the first partial delivery line (101) of the hydraulic pump (100), and by its second connection (107) to the second connection (56?) of the second partial delivery line (102) of said hydraulic pump (100).

Abstract: A hydrostatic machine which includes a housing having an internal space accommodating a rotatably journaled driving mechanism, and wherein the portion of the internal space which is not occupied by the driving mechanism encompasses a drain oil chamber which receives the drain oil inclusive of lubricating oil which is discharged from bearing locations of the hydrostatic machine, and which is connected or port to a tank through at least one drain oil connection of the housing and through a drain oil line.