Invention Grant
- Patent Title: Hydrostatic drive having a closed circuit and method for operating the drive
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Application No.: US16313489Application Date: 2017-06-16
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Publication No.: US10683929B2Publication Date: 2020-06-16
- Inventor: Andrea Gambetti , Thassilo Maxeiner
- Applicant: THOMAS MAGNETE GMBH
- Applicant Address: DE Herdorf
- Assignee: THOMAS MAGNETE GMBH
- Current Assignee: THOMAS MAGNETE GMBH
- Current Assignee Address: DE Herdorf
- Agency: Nath, Goldberg & Meyer
- Agent Joshua B. Goldberg
- International Application: PCT/EP2017/000701 WO 20170616
- International Announcement: WO2018/001547 WO 20180104
- Main IPC: F16H61/4139
- IPC: F16H61/4139 ; F16H61/431 ; F16H61/433

Abstract:
The aim of the invention of for the hydrostatic drive to enable a lowering of the feed pressure provided by the feed pump and, at the same time, to effect a supply of the adjustment unit of the drive that is proper with respect to the pressure and the delivery rate. This aim is achieved in that the adjustment unit (5) of the drive is supplied with hydraulic energy by an electrohydraulic supply unit (6), wherein the supply unit (6) consists of an electric motor (7) and an auxiliary pump (8) coupled thereto and wherein the outlet of the auxiliary pump (8) is connected to the adjustment unit (5) directly or by means of a check valve (18). Hydrostatic drives according to the invention are used, for example, in self-propelled working machines.
Public/Granted literature
- US20190162302A1 HYDROSTATIC DRIVE HAVING A CLOSED CIRCUIT AND METHOD FOR OPERATING THE DRIVE Public/Granted day:2019-05-30
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