Fuel injector nozzles

Details Fuel injector nozzles Fuel injector nozzles

2006-11-21

2006-11-21

Ganey, Steven J. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

With heating or cooling means for the system or system fluid

In terminal element

C239S397500, C239S453000, C239S523000, C239S533700, C239S533120, C239S584000

Reexamination Certificate

active

07137571

ABSTRACT:
Disclosed is an injector nozzle through which fluid is delivered and which has a port (17) having an internal surface and a valve member (13) having a complementary external surface. The valve member (13) is movable relative to the port (17) to respectively provide a passage between the internal and external surfaces for delivery of fluid in the form of a spray. Alternatively, sealed contact of the surfaces will prevent the delivery of fluid.The nozzle includes a flow control body (30) located beyond an extremity of the port (17). The flow control body (30) has a control surface (33) arranged downstream of the port (17) in the direction of movement of the valve member (13). The control surface (33) is configured and positioned to promote the fluid spray established by the fluid issuing from the port (17) to in part follow a path determined by the shape of the control surface (33). The flow control body (30) includes an insulating region (140, 141) arranged to restrict heat transfer from the control surface (33) to the nozzle. The insulating region (140, 141) may be the spacing between the surface (30a) of the flow control body (30) closest to an end face (14a) of the valve member (13) and that end face (14a).

REFERENCES:
patent: 3612012 (1971-10-01), Dreisin
patent: 4408722 (1983-10-01), Frelund
patent: 4434940 (1984-03-01), Kupper et al.
patent: 4502196 (1985-03-01), Kupper et al.
patent: 4817873 (1989-04-01), McKay
patent: 5551638 (1996-09-01), Caley
patent: 5833142 (1998-11-01), Caley
patent: 5915352 (1999-06-01), Okamoto et al.
patent: WO 89/04920 (1989-01-01), None
Title: 00/2347 Injection Nozzles User: cpatok—Kurt Tobler, S3-64 PAN: 93-194705, p. 1 of 1, Tue' Oct. 17 16:55:09, Viewed Marked.
European Examination Report, Jan. 17, 2005, For corresponding European Patent Application No. 01 918 999.

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