| 主权项 |
1. A hydraulic unit (1) comprising at least two pressure connections (2, 3) for the required supply of one or more hydraulically driven devices (4, 5), in particular hydraulic rescue devices, with hydraulic fluid (10) from a fluid container (11), comprising a first hydraulic circuit (8) with a first pump arrangement (12) comprising at least two first pump elements (13, 14) from which first fluid lines (20, 21) lead to a first pressure connection (2), at least one second hydraulic circuit (9) with a second pump arrangement (15) consisting of at least two second pump elements (16, 17) from which second fluid lines (23, 24) lead to a second pressure connection (3), wherein the first pump elements (13, 14) and the second pump elements (16, 17) are driven at the same time by a common drive (18), and wherein by means of a first valve switch (26) at least one of the first fluid lines (21) can be connected via a first connecting line (27) to a second fluid line (24) in the second hydraulic circuit (9) and by means of a second valve switch (28) at least one of the second fluid lines (24) can be connected via a second connecting line (29) to a first fluid line (21) in the first hydraulic circuit (8), wherein the valve switches (26, 28) comprise a spring (30, 31) acting in the direction of an initial position and from the first hydraulic circuit (8) or from the second hydraulic circuit (9) a first control line (34) runs to a first actuator (32) acting on the first valve switch (26) and from the second hydraulic circuit (9) or from the first hydraulic circuit (8) a second control line (35) runs to a second actuator (33) acting on the second valve switch (28). |
