Title:
電気液圧式駆動ユニット
Document Type and Number:
Japanese Patent JP6875511
Kind Code:
B2
Abstract:
An electrohydraulic drive unit is provided, comprising a cylinder-piston assembly having a piston-side first hydraulic working chamber and a piston-rod-side second hydraulic working chamber, a tank, a hydraulic pump, which can be driven at variable rotational speed and which has a tank connection point and a working connection point, a valve assembly, which is connected between the working connection point of the hydraulic pump and the cylinder-piston assembly, and an anti-cavitation valve, which is connected between the tank and the first hydraulic working chamber; and a machine controller. Switching valves of the valve assembly can be switched between loading of the first hydraulic working chamber and loading of the second hydraulic working chamber of the cylinder-piston assembly during pumping operation of the hydraulic pump from the working connection point of the hydraulic pump by the machine controller.
Inventors:
Guth, Stephan
Lauwolf, Martin
Lauwolf, Martin
Application Number:
JP2019518438A
Publication Date:
May 26, 2021
Filing Date:
June 26, 2017
Export Citation:
Assignee:
Helbigger Outmatijeung Steinique Holding Gezel Shaft Mitt Beschlenktel Haftung
International Classes:
F15B1/02; F15B1/26; F15B15/18
Domestic Patent References:
| JP51099739U | ||||
| JP53085495U | ||||
| JP2015514586A |
Foreign References:
| DE202015106161U1 | ||||
| US20070227133 |
Attorney, Agent or Firm:
Patent Business Corporation Imy International Patent Office