Pulsed spraybar injector
AssigneeCollins Engine Nozzles, Inc.
InventorJohn Earl Short
Life of this patent
Estimating the term…
Abstract
A spray bar injector including a spray bar defining a longitudinal axis and including a fluid inlet and a plurality of spray outlet orifices spaced apart longitudinally in a direction along the longitudinal axis. A check or spray valve is operatively connected to each spray outlet orifice. A master valve is in fluid communication with the fluid inlet, operatively connected to divert flow from the fluid inlet into a first passage and block flow into a second passage in a first position to open the check valves and issue a spray from the spray outlet orifices, and to divert flow from the fluid inlet into the second passage and block flow into the first passage in a second position to close the check valves and block issue of spray from the spray outlet orifices.
Claims5
A method of making a pulsed spray bar injector comprising:
- forming passage surfaces and valve seats in an inner body;
- seating valve elements in the valve seats;
- assembling an oscillating master valve into the inner body;
- and
- sliding a sleeve over the inner body to define first and second passages for flow from the master valve to the valve seats, so that the valve elements are nested between the valve seats and the sleeve.
A spray bar injecting arrangement comprising:
- a spray bar defining a fluid inlet and a plurality of spray outlet orifices spaced apart longitudinally along the spray bar;
- a spray valve operatively connected to each spray outlet orifice being movable between an open position that allows fluid flow through the spray outlet orifice and a closed position that blocks flow through the spray outlet orifice;
- and
- a master valve in fluid communication with the fluid inlet movable between a first position and a second position such that fluid flow from the fluid inlet urges each of the spray valves toward the open position when the master valve is in the first position and fluid flow from the fluid inlet urges each of the spray valves toward the closed position when the master valve is in the second position.
Dependencies are inferred from the claim text.