Deposit control in fuel injector nozzles

Details Deposit control in fuel injector nozzles Deposit control in fuel injector nozzles

2005-10-18

2005-10-18

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

C239S533700, C239S533200, C239S585100, C239S585500, C239S088000

Reexamination Certificate

active

06955307

ABSTRACT:
An injector nozzle for a fuel injected internal combustion engine, said injector nozzle including a port (5) having an internal valve seat surface (15) and a valve member (13) having an external seating surface (17), said valve member being movable relative to the port to respectively provide a passage between the valve seat surface and the external seating surface for the delivery of fuel therethrough or sealed contact therebetween to prevent said delivery of fuel, the port further including an outer port surface (16) surrounding and located adjacent the valve seat surface and external to the port, wherein the angle between the valve seat surface and the outer port surface of the port is less than 90 degrees.

REFERENCES:
patent: 2874000 (1959-02-01), Nystrom
patent: 3531052 (1970-09-01), Berlyn
patent: 3690566 (1972-09-01), Krauss et al.
patent: 4993643 (1991-02-01), Schechter et al.
patent: 5685492 (1997-11-01), Davis
patent: 6168132 (2001-01-01), Frank et al.
patent: 0 363 162 (1990-04-01), None
patent: 08-277765 (1996-10-01), None
patent: 08-338343 (1996-12-01), None
patent: WO 91/11609 (1991-08-01), None
patent: WO 01 77518 (2001-10-01), None
Injector Nozzle- Kurt Tobler pp. 1 of 2. Derwent Abstract Accession No. 97-104320/10, Class Q53, JP 08338343A (ZEXEL KK) Dec. 24, 1996.

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