US 6,981,655 B1 | ||
Injector for a fuel injection system for internal combustion engines with an integrated system pressure supply | ||
Patrick Mattes, Stuttgart (Germany) | ||
Assigned to Robert Bosch GmbH, Stuttgart (Germany) | ||
Appl. No. 10/88,897 PCT Filed Sep. 28, 2000, PCT No. PCT/DE00/03393 § 371(c)(1), (2), (4) Date Aug. 01, 2002, PCT Pub. No. WO01/23751, PCT Pub. Date Apr. 05, 2001. |
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Claims priority of application No. 199 46 612 (DE), filed on Sep. 29, 1999. | ||
Int. Cl. B05B 1/08 (2006.01); B05B 1/30 (2006.01); F02M 39/00 (2006.01) |
U.S. Cl. 239—102.2 | 14 Claims |
1. An injector for a fuel injection system for internal combustion engines, comprising:
a high-pressure connection (3) having a bore (5) therein, wherein the high-pressure connection (3) communicates hydraulically with an inflow conduit (13) via the bore (5),
a conduit (15) to a system pressure supply branching off from the bore (5) of the high-pressure connection (3), and
a bush (9) with a longitudinal bore (11) disposed in the bore (5) of the high-pressure connection (3),
the inflow conduit (13) being supplied with fuel from the high-pressure connection (3) through the longitudinal bore (11) of the bush (9), and
the fuel inflow to the conduit (15) to the system pressure supply being effected through an annular gap (19) formed between an outer circumferential surface of the bush (9) and the bore (5) of the high-pressure connection (3).
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