EP 1563183 A1 20050817 - PRESSURE BOOSTER FOR STROKE-DEPENDENT DAMPING
Title (en)
PRESSURE BOOSTER FOR STROKE-DEPENDENT DAMPING
Title (de)
DRUCKVERSTÄRKER MIT HUBABHÄNGIGER BEDÄMPFUNG
Title (fr)
MULTIPLICATEUR DE PRESSION DONT L'AMORTISSEMENT DEPEND DE LA COURSE
Publication
Application
Priority
- DE 0302312 W 20030710
- DE 10251679 A 20021107
Abstract (en)
[origin: WO2004042223A1] The invention relates to a pressure booster for a fuel injection device, comprising a conical pressure boosting element (5) inserted into housing (10). Said element separates a working chamber (2) from a differential pressure chamber (6). Said differential pressure chamber (6) can be connected to a high pressure source by means of a control line (7) or can be relieved of pressure in a low pressure area. The conical pressure boosting element (5) is impinged upon by a restoring spring (13). Said restoring spring (13) is supported on a ring-shaped insert (15) inside the housing (10). A damper throttle (24) is embodied in the ring-shaped insert (15) by means of which fuel flows in from the working chamber (2) of the pressure booster (1) into a hydraulic chamber (22) when pressure in the differential pressure chamber (6) is relieved.
IPC 1-7
IPC 8 full level
F02M 57/02 (2006.01); F02M 63/02 (2006.01); F02M 59/10 (2006.01); F02M 59/46 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP US)
F02M 57/025 (2013.01 - EP US); F02M 57/026 (2013.01 - EP US); F02M 63/0225 (2013.01 - EP US); F02M 59/105 (2013.01 - EP US); F02M 59/468 (2013.01 - EP US); F02M 2200/304 (2013.01 - EP US)
Citation (search report)
See references of WO 2004042223A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 2004042223 A1 20040521; DE 10251679 A1 20040519; DE 50304682 D1 20060928; EP 1563183 A1 20050817; EP 1563183 B1 20060816; JP 2006505733 A 20060216; US 2006048751 A1 20060309
DOCDB simple family (application)
DE 0302312 W 20030710; DE 10251679 A 20021107; DE 50304682 T 20030710; EP 03810367 A 20030710; JP 2004549042 A 20030710; US 53250505 A 20050425