John James Richey

US Patent:

47350440, Apr 5, 1988

Filed:

Nov 25, 1980

Appl. No.:

6/210191

Inventors:

John M. Richey - Cincinnati OH
Craig K. Ball - Cincinnati OH

Assignee:

General Electric Company - Cincinnati OH

International Classification:

F02C 722

US Classification:

60742

Abstract:

A stem couples a fuel injector inlet to a fuel nozzle. The fuel nozzle includes a primary fuel flow portion and a secondary fuel flow portion. The stem includes an input end for receiving a primary fuel flow and a secondary fuel flow from the fuel injector inlet. The stem includes three concentric tubes with the first tube coupling the primary fuel flow from the injector to the primary portion of the nozzle. A second concentric tube couples the secondary fuel flow from the injector to the secondary portion of the nozzle. The primary fuel flow and the secondary fuel flow in the two concentric tubes are nonlinear with respect to the input and output ends of the stem. The third concentric tube provides structural support and an insulating space for the first two concentric tubes. Methods for constructing the stem are provided. Other embodiments are disclosed.

US Patent:

40708268, Jan 31, 1978

Filed:

Dec 24, 1975

Appl. No.:

5/644040

Inventors:

Richard E. Stenger - Cincinnati OH
Edward E. Ekstedt - Cincinnati OH
John M. Richey - Fairfield OH
Stanford P. Seto - Loveland OH

Assignee:

General Electric Company - Cincinnati OH

International Classification:

F02C 722
B05B 732

US Classification:

60 3966

Abstract:

A low pressure fuel stream is injected into a carburetor by way of a fuel tube injector combination having an insulating air space provided between the internal flow path structure and the outer surface of the combination which is exposed to relatively high temperatures. The fluid stream is thus maintained at a relatively low temperature and pressure until it is discharged from the fuel injector, at which time a surrounding airstream prevents the direct contact of the fuel flow with the surface of the fuel injector, and therefore prevents any carbon build-up which would otherwise occur on or near the fuel exit orifice.