Invention Grant
- Patent Title: Pilot-controlled pressure limiting valve
- Patent Title (中): 先导控制限压阀
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Application No.: US12278661Application Date: 2007-01-27
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Publication No.: US08365763B2Publication Date: 2013-02-05
- Inventor: Hans Woelfges
- Applicant: Hans Woelfges
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agent Michael J. Striker
- Priority: DE102006007363 20060217
- International Application: PCT/EP2007/000714 WO 20070127
- International Announcement: WO2007/093273 WO 20070823
- Main IPC: F16K31/383
- IPC: F16K31/383

Abstract:
A pressure limiting valve has a control element (10) which can be acted on in an opening direction, against a first control face, by a pressure which is to be limited, and which can be acted on in a closing direction by a spring (16) and, against a second control face, by a control pressure prevailing in a control pressure space (14). The pressure prevailing in the control pressure space can be limited by means of a pilot control valve (21). A control fluid can be supplied to the control pressure space through the control element via a control fluid nozzle (48). Upstream of the first control face, a plate (38) is held on the control element. Formed between the plate and the first control face is a gap with a predefined gap dimension. Said gap is situated upstream of the control fluid nozzle.
Public/Granted literature
- US20090314359A1 PILOT-CONTROLLED PRESSURE LIMITING VALVE Public/Granted day:2009-12-24
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