Patent ID: 8443596
Filing Date: 2013-05-21
Classification: F04B,F15B

Abstract:
1. Hydraulic drive ( 2 ) having a main pump ( 8 ), which can be adjusted in terms of delivery volume and delivery direction, and having a hydraulic motor ( 9 ), which main pump ( 8 ) and hydraulic motor ( 9 ) are connected to one another in a closed circuit via pressure lines ( 10 A, 10 B), and having a charge pump ( 14 , 15 ) for charging into the closed circuit and for supplying pressurized fluid to at least one controlling device ( 11 , 12 ), characterized in that the charge pump ( 15 ) has a separate drive motor ( 19 ) whose power/rotational speed can be specified independently of the rotational speed of a drive ( 3 ) of the main pump ( 8 ); a temperature sensor for the temperature of the pressurized fluid is provided, which temperature sensor is connected via a signal line to the electronics (