Claims
- 1. An adjustable nozzle for regulating high pressure liquid which comprises:
- a cylindrically shaped nozzle body member having an internally threaded fore end, partially closed externally threaded aft end, said aft end having a sleeve hole axially positioned therethrough which communicates with a central cavity;
- nozzle means threadedly attached to said fore end of said nozzle body member for controlling spray pattern and flow rate of said high pressure liquid passing therethrough;
- piston means, slidable disposed within said central cavity of said body member intermediate said aft end of said body member and said nozzle means for regulating the flow rate of said high pressure liquid through said nozzle means;
- means threadedly attached to said aft end of said nozzle body member and slidably passing therethrough for variably adjusting the position of said piston means in said central cavity of said nozzle body member to independently control said flow rate and for axially supporting means for independently adjusting a spray pattern of said high pressure liquid passing through said nozzle means;
- "O" ring means operatively located in said sleeve hole of said aft end of said nozzle member, said "0" ring means preventing loss of liquid from said nozzle body member when said means for variably adjusting the flow rate and the spray pattern slidably passes through said aft end of said nozzle body member; and
- hose connecting means fixedly attached to said nozzle body member and communicating with said nozzle body member central cavity for supplying high pressure liquid to said nozzle body member from a plurality of inlets, and for providing means for conveniently holding said adjustable nozzle while adjusting said liquid flow rate and said spray pattern.
- 2. An adjustable nozzle as recited in claim 1 which includes an annularly sealing gasget member operatively disposed intermediate said fore end of said nozzle body member and said nozzle means.
- 3. An adjustable nozzle as recited in claim 2 wherein said nozzle means includes parallel positioned spray baffles on an inside fore end to deflect a portion of said liquid passing through said nozzle means to eliminate obtaining a hollow-spray cone pattern.
- 4. An adjustable nozzle as recited in claim 3 wherein said nozzle means includes a convergent conical nozzle section which contacts said piston means to form a circular nozzle seat contact line.
- 5. An adjustable nozzle as recited in claim 2, 3 or 4 wherein said piston means includes, a piston valve member having a tapered fore end, conically concave aft end with a contol sleeve piston seat therein, a cylindrically shaped piston shoulder disposed on said aft end, said piston shoulder slidably disposed in said central cavity of said nozzle body member to provide a controlled clearance space between an interior wall of said nozzle body member and said piston shoulder, an axially disposed piston deflector slide bore, a piston passage aft end bore which is axially disposed intermediate said piston deflector slide bore and said conically concave aft end, and a plurality of radially peripherally positioned guide pins for centering said tapered fore end of said piston valve member in said convergent conical nozzle section to insure uniform circular flow cross-sectional area at said nozzle contact line.
- 6. An adjustable nozzle as recited in claim 5 wherein said means for variably adjusting the position of said piston means includes:
- a fluid flow control cap threadedly coupled to said externally threaded aft end of said nozzle body member, said cap having a fluid flow control internally threaded sleeve fixedly, axially disposed in said control cap, said control sleeve having a flow control sleeve piston seat located on a fore end of said control sleeve;
- a control rod threadedly attached to said control sleeve, said control rod having a forward end axially passing through said piston passage aft end bore to axially locate in said piston deflector slide bore, and a control knob fixedly positioned on the other end; and
- a fluid stream pattern deflector member slidably disposed in said deflector slide bore, said fluid stream pattern deflector member fixedly pinned to said forward end of said control rod.
- 7. An adjustable nozzle as recited in claim 6 wherein said fluid stream pattern deflector member includes a rear end pinned to said forward end of said control rod, a divergently shaped fore end of a diameter sufficiently small to be withdrawn into said piston deflector slide bore of said piston valve member, and an axial relief bore which communicates with a plurality of radially disposed pressure relief passage holes, said pressure relief passage holes allow fluid pressure to be relieved from the deflector slide bore to said axial relief bore.
- 8. An adjustable nozzle as recited in claim 7 wherein said hose connecting means includes:
- an internally threaded hose connector; and
- a plurality of "U" shaped handled fluidically connecting said hose connector to said nozzle body member.
GOVERNMENTAL INTEREST
The invention described herein may be manufactured, used and licensed by or for the Government for Governmental purposes without the payment to me of any royalty thereon.
US Referenced Citations (3)