Stream straightener for fluid flowing and dispensing nozzle
AssigneeHusky Corporation
InventorThomas O. Mitchell
Life of this patent
Estimating the term…
Abstract
A choke for reducing spray of fuel exiting a fuel dispensing system nozzle spout having an annular frame positioned within the spout adjacent the output opening. The choke has a concentric hub connected to the frame by three, relatively narrow struts positioned equidistant around the hub. The hub has a solid, cylindrical fore section tubular aft section. A duct extends from the tubular aft section, through one strut and the frame, to the sensing port. Fuel flowing through the spout toward the output opening, it is slowed and divided into three streams by the choke, flows along the hub fore section and converges, compressed and linearly aligned, at the output opening of the spout to reduce spraying of fuel at the output opening of the spout and avoid unwanted shut-off.
Claims20
An apparatus for straightening the stream of a fluid flowing through a fluid flow path as it exits the discharge orifice of a fluid dispensing device to reduce spraying of the fluid at the discharge orifice, comprising:
- a frame positioned within the fluid flow path of the discharge device;
- a hub concentrically positioned within the frame, the hub having a front section orientated toward the discharge orifice and a rear section orientated toward the fluid stream
- a plurality of spokes extending between the hub and the frame and positioned about the hub so as to divide the stream of fluid flowing through the choke into a plurality of separate substantially linearly aligned streams,
- whereby the separate linearly aligned streams flow along the front section of the hub and converge at the discharge orifice in a substantially constricted, linearly aligned stream and thereby straightened to reduce spraying of the fluid at the discharge orifice.
The apparatus of claim 3 wherein the rear section of the hub has a bore formed therein.
A dispensing apparatus for dispensing flowing fluid from a fluid dispensing system comprising:
- a substantially elongated body having a fluid flow path formed therein, said body having a discharge orifice at a first end and being in fluid communication with a source of fluid at the opposite end;
- and
- means within said fluid flow path adjacent the discharge orifice for slowing, dividing and compressing the fluid flowing within said fluid flow path prior to discharge from the discharge orifice to reduce spraying of the dispensed fluid.
An apparatus for straightening the stream of a fluid flowing through a fluid flow path as it exits the discharge orifice of a fluid dispensing device to reduce spraying of the fluid at discharge orifice, comprising:
- an annular frame positioned within the fluid flow path of the discharge device;
- a hub concentrically positioned within the frame, the hub having a generally cylindrical front section with a conical tip orientated toward the discharge orifice and a rear section orientated toward the fluid stream, said rear section having a bore formed therein;
- at least three spokes extending between the hub and the frame and positioned about the hub and positioned equidistance around the hub so as to divide the stream of fluid flowing through the choke into separate substantially linearly aligned streams, one of said spokes having a bore formed therein and in fluid communication with the bore of the rear section of the hub,
- whereby the separate linearly aligned streams flow along the front section of the hub and converge at the discharge orifice in a substantially constricted, linearly aligned stream and thereby straightened to reduce spraying of the fluid at the discharge orifice.
An apparatus for straightening the stream of a fluid flowing through a fluid flow path as it exits the discharge orifice of a fluid dispensing device to reduce spraying of the fluid at discharge orifice, comprising:
- an annular body positioned within the fluid flow path of the discharge device, said body having an anterior section and a posterior section, said anterior section having a tapered bore formed therein;
- a hub concentrically positioned within the body at the posterior section, the hub having a generally cylindrical front section orientated toward the discharge orifice and a rear section orientated toward the fluid stream, said rear section having a bore formed therein;
- at least three spokes extending between the hub and the frame and positioned and positioned equidistance around the hub so as to divide the stream of fluid flowing through the choke into separate substantially linearly aligned streams, one of said spokes having an extension thereon for engaging a sensing port in the fluid dispensing device with a bore formed therethrough and in fluid communication with the bore of the rear section of the hub,
- whereby the separate linearly aligned streams flow along the front section of the hub and through the tapered bore of the body front section to converge at the discharge orifice in a substantially constricted, linearly aligned stream and thereby straightened to reduce spraying of the fluid at the discharge orifice.
A method of straightening the stream of a fluid flowing through a fluid flow path as it exits the discharge orifice of a fluid dispensing device to reduce spraying of the fluid at discharge, comprising:
- slowing the stream of fluid as it flows toward the discharge orifice;
- dividing the stream of fluid flowing into a plurality of separate, substantially linearly aligned fluid streams;
- converging said plurality of separate, substantially linearly align fluid streams at a point adjacent the discharge orifice to create a relatively constricted linearly align fluid stream at the discharge orifice wherein said relatively constricted, linearly aligned fluid stream exists the discharge orifice with reduced spraying of liquid beyond the discharge orifice.
Dependencies are inferred from the claim text.