Invention Grant
- Patent Title: Pressure-limiting valve
- Patent Title (中): 限压阀
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Application No.: US14114745Application Date: 2012-03-08
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Publication No.: US09228667B2Publication Date: 2016-01-05
- Inventor: Marek Gomola
- Applicant: Marek Gomola
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Michael Best & Friedrich LLP
- Priority: DE102011017765 20110429
- International Application: PCT/EP2012/054015 WO 20120308
- International Announcement: WO2012/146431 WO 20121101
- Main IPC: F16K15/06
- IPC: F16K15/06 ; F16K17/04 ; F02M63/00

Abstract:
A pressure-limiting valve is proposed, in particular for a common rail system. The pressure-limiting valve comprises a valve support (10), a valve insert (12) which is connected to the valve support (10), a valve piston (14) which is mounted such that it can slide in the valve insert (12), and a closing spring (16) which acts on the valve piston (14) with a closing force in the closing direction. By means of the closing force, the valve piston (14) acts on a valve seat (18) which produces a hydraulic connection via a valve chamber (40) between a high-pressure space (33) and a low-pressure space (36), as soon as the hydraulic force which acts on the valve piston (14) in the opening direction exceeds the closing force of the closing spring (16). When the valve seat (18) is closed, a leakage gap (50) is formed between the valve chamber (40) and the low-pressure space (36), which leakage gap (50) makes it possible for the leakage to be discharged out of the valve chamber (40) into the low-pressure space (36).
Public/Granted literature
- US20140060672A1 PRESSURE-LIMITING VALVE Public/Granted day:2014-03-06
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