George F Henry

US Patent:

45398097, Sep 10, 1985

Filed:

Dec 28, 1983

Appl. No.:

6/566445

Inventors:

Richard L. Stanley - Mason OH
George R. Henry - Loveland OH

Assignee:

The United States of America as represented by the Secretary of the Air
Force - Washington DC

International Classification:

F02G 300

US Classification:

60 39094

Abstract:

A novel drain system for venting excess fuel from the fuel pump of a jet engine, and particularly the augmenter pump of a jet engine afterburner, is described which comprises a drain line connected at a first end to the vent valve of the fuel pump and at a second end to the main fuel supply line for the engine, for draining the excess fuel from the pump to the main fuel line, a check valve in the drain line near the second end thereof for restricting fuel flow through the drain line in a direction from the first end to the second end, and a vent line having a restriction therein defining an orifice of predetermined size connecting the drain line to an overboard dump port open to ambient.