Invention Grant
- Patent Title: Hydraulic drive and hydraulically operable working tool
- Patent Title (中): 液压驱动和液压可操作的工具
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Application No.: US13845583Application Date: 2013-03-18
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Publication No.: US09360028B2Publication Date: 2016-06-07
- Inventor: Engelbert Zwingler , Georg Aneder
- Applicant: HAWE HYDRAULIK SE
- Applicant Address: DE
- Assignee: HAWE HYDRAULIK SE
- Current Assignee: HAWE HYDRAULIK SE
- Current Assignee Address: DE
- Agency: Brooks Kushman P.C.
- Priority: EP12185472 20120921
- Main IPC: F15B13/04
- IPC: F15B13/04 ; F15B15/20 ; F15B11/042

Abstract:
A hydraulic control, for example of a hydraulically operable working tool, includes a hydroconsumer that can be acted upon against a permanent force via a pressure source, and a switching valve with working power/pressure control function reacting against a spring force depending on a pressure and/or through flow volume. The switching valve connects the hydroconsumer with a tank for a return stroke of the hydroconsumer when the pressure source is switched off. The hydroconsumer can be hydraulically stopped with the return stroke via the pressure source by a pressure pulse and/or through flow volume pulse. In a hydraulically operable working tool, the hydroconsumer can be hydraulically stopped in the return stroke even before a predetermined end position is reached by switching on the pressure source.
Public/Granted literature
- US20140083085A1 HYDRAULIC DRIVE AND HYDRAULICALLY OPERABLE WORKING TOOL Public/Granted day:2014-03-27
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