Accession Number : ADD011993

Title :   Fuel Pump Vent Drain System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Stanley,Richard L ; Henry,George R

Report Date : 10 Sep 1985

Pagination or Media Count : 4

Abstract : This patent describes 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. It 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.

Descriptors :   *PATENTS, *FUEL PUMPS, FUEL LINES, VENTING, CHECK VALVES, JET ENGINES, AFTERBURNERS, DRAINAGE, VALVES, AUGMENTATION, ENGINE FUEL SYSTEMS COMPONENTS

Subject Categories : Pumps, Filters, Pipes, Tubing, Fittings & Vlvs
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE