Invention Grant
- Patent Title: Pressure control valve
- Patent Title (中): 压力控制阀
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Application No.: US14406245Application Date: 2013-05-07
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Publication No.: US09410522B2Publication Date: 2016-08-09
- Inventor: Pierre-Marie Rochas
- Applicant: Robert Bosch GmbH
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Maginot, Moore & Beck LLP
- Priority: FR1255351 20120608
- International Application: PCT/EP2013/059518 WO 20130507
- International Announcement: WO2013/182366 WO 20131212
- Main IPC: F16K31/06
- IPC: F16K31/06 ; F02M63/00 ; F02M63/02

Abstract:
A pressure control valve for a high-pressure accumulator of an injection device of an internal combustion engine, includes a magnetic actuator. The magnetic actuator has a magnetic core with contacting pins and a magnetic armature with an armature plate. The contacting pins pass through feedthroughs formed in the armature plate. The armature plate is hydraulically connected by a pressure equalization channel to a valve chamber connected to low pressure. The pressure equalization channel has an opening on the magnetic core end face which opens into the armature space. At least one of the feedthroughs forms a passage for the fuel through the armature plate for the pressure equalization. A residual air gap disk is arranged between the magnetic core and the armature plate. The residual air gap disk forms an additional feedthrough with a radial extension that extends in the direction of the opening.
Public/Granted literature
- US20150152827A1 Pressure Control Valve Public/Granted day:2015-06-04
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