Fuel purging system for a turbine engine

Patent · Tue Mar 17 04:00:00 EST 1992

OSTI ID:5341308

Shekleton, J R; Johanson, R K

This patent describes a purge system for the fuel injection system of a turbine engine having a combustor including at least one start injector and one main injector, a turbine wheel adapted to receive gases of combustion from the combustor to be driven thereby, and an exhaust conduit in fluid communication with the turbine wheel to conduct spent gases of combustion therefrom. It comprises first and second three-way valves, each having an inlet port, an outlet port and an inlet-outlet port, and valve means for alternately connecting the inlet-outlet port to the associated inlet port or associated outlet port; a purge line connected to the outlet port of each of the valves and adapted to extend into an exhaust conduit; a first line connected to the inlet-outlet port of a first of the valves and adapted to be connected to a start injector; a second line connected to the inlet-outlet port of a second of the valves and adapted to be connected to at least one main injector; separate conduits connected to respective ones of the inlet ports and adapted to be connected to respective controlled sources of fuel under pressure; and a check valve in the purge line disposed to allow fluid flow therein only toward the exhaust conduit.

• Assignee: Sundstrand Corp., Rockford, IL (United States)
• Patent Number(s): US 5095694; A
• Application Number: PPN: US 7-156219
• OSTI ID: 5341308
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330103* -- Internal Combustion Engines-- Turbine
330603 -- Vehicle Design Factors-- Engine System
CLEANING
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
GAS TURBINE ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
VALVES