Invention Grant
- Patent Title: Hydraulic control arrangement
- Patent Title (中): 液压控制装置
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Application No.: US14151913Application Date: 2014-01-10
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Publication No.: US09261084B2Publication Date: 2016-02-16
- Inventor: Morten Hoeck Petersen , Bendt Porskrog , Nils E. Sevelsted
- Applicant: Sauer-Danfoss ApS
- Applicant Address: DK Nordborg
- Assignee: Danfoss Power Solutions ApS
- Current Assignee: Danfoss Power Solutions ApS
- Current Assignee Address: DK Nordborg
- Agency: McCormick, Paulding & Huber LLP
- Priority: EP13000214 20130116
- Main IPC: B62D5/32
- IPC: B62D5/32 ; B62D5/093 ; F04B7/02

Abstract:
A hydraulic control arrangement (1) is described having a directional valve (2), a metering pump unit which has at least two metering pumps (3, 4) which are connected hydraulically in parallel and are operable mechanically in parallel, and a shut-off valve (6) in hydraulic connection between two of the at least two metering pumps (3, 4), a pump connection (P) and a tank connection (T) which are connected to said metering pump unit by way of the directional valve (2), and two working connections (L, R) connected to the directional valve (2), a control input (8) of the shut-off valve (6) being connected to the pump connection (P) by means of a control valve. Such a control arrangement should be operated at a high hydraulic pressure and at the same time it should be made sure that the shut-off valve is actuated only when the required high pressure is available. To this end the control valve (10) is a pilot operated valve, an inlet (11) of said control valve (10) being connected to the pump connection (P), said control valve (10) connecting said input (8) and said pump connection (P) in an actuated state of said control valve (10).
Public/Granted literature
- US20140196804A1 HYDRAULIC CONTROL ARRANGEMENT Public/Granted day:2014-07-17
Information query
IPC分类: