Hydraulic arrangement with two drive motors
AssigneeWeber-Hydraulik GmbH
InventorsRalf Naumann, Torsten Winkler
Life of this patent
Estimating the term…
Abstract
A hydraulic drive arrangement (1) for the pressure supply of a hydraulic steering system (20), particularly for construction or agricultural machines, including a hydraulic pump (2) and an electric drive. It is essential that the electric drive is designed in a redundant fashion and has two separately controlled electric drive engines (3a, 3b), which are mechanically coupled via the hydraulic pump (2) in a rigid fashion, and that the separate control circuits (6a, 6b, 7a, 7b) are provided by which a variable load distribution can be specified for the electric drive engines (3a, 3b).
Claims20
A hydraulic drive arrangement (1) for pressure supply of a hydraulic steering system, comprising a hydraulic pump (2), a redundant electric drive that comprises two separately controlled electric drive engines (3a, 3b) that are mechanically coupled to each other via the hydraulic pump (2) in a rigid fashion, and separate control circuits (6a, 6b, 7a, 7b) by which a variable load distribution over the electric drive engines (3a, 3b) is specified.
A method for operating a hydraulic drive arrangement (1) for pressure supply to a hydraulic steering system (20) with a hydraulic pump (2) and an electric drive, wherein the electric drive comprises two separately controlled electric drive engines (3a, 3b) with separate control circuits (6a, 6b, 7a, 7b) and the method comprises driving the separately controlled drive engines via the control circuits (6a, 6b, 7a, 7b) and providing a variable load distribution to the electric drive engines (3a, 3b).
Dependencies are inferred from the claim text.