Nozzles for in-cylinder fuel injection systems

Details Nozzles for in-cylinder fuel injection systems Nozzles for in-cylinder fuel injection systems

1986-11-10

1989-04-04

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Distributor having thermal expansion joint, differentially...

2391321, 239139, 23953312, B05B 1500, B05B 124, F02M 6100

Patent

active

048178730

ABSTRACT:
A fuel injection nozzle for use in direct injection of fuel to an internal combustion engine, the injector nozzle comprising a body having a longitudinal fuel passage terminating in a port which in use communicate the fuel passage with the combustion chamber of the engine. A valve element to co-operate with a valve seat provided in the port to control fuel flow to the combustion chamber, and a fuel spray directing surface in the port extending downstream from the valve seat. The body including a cavity between the spray directing surface and that part of the body through which the fuel passage passes, with the cavity being shaped and located to restrict the area for conductive heat flow from the spray directing surface to fuel passage area of the body. The restriction of the heat flow maintains the spray directing surface at a temperature to combust particles of combustion products deposited thereon.

REFERENCES:
patent: 2172383 (1939-09-01), Honn
patent: 2896856 (1959-07-01), Kravits
patent: 4394970 (1983-07-01), Hoffman
patent: 4502196 (1985-03-01), Kupper
patent: 4669660 (1987-06-01), Weber

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