Switcher nozzle high efficiency flow insert
AssigneeStoneage, Inc.
InventorsJoseph A. Schneider, Timothy M. D. Tormey
Life of this patent
Estimating the term…
Abstract
A nozzle assembly includes a hollow nozzle body having a central bore and a plurality of ports extending through the body from the central bore; a switching valve assembly disposed in the central bore that directs fluid flow to ports upon application of fluid flow above a predetermined threshold to the inlet and direct fluid flow to different ports upon fluid flow having subsequently dropped below the predetermined threshold and then exceeding the predetermined threshold; and a flow insert configured to replace the switching valve assembly for directing flow through all of the ports when switching functionality is not needed. This flow insert may be made of a low pressure material such as a polymer.
Claims20
A nozzle comprising:
- an inlet nut fastenable to a distal end of one of a rotatable nozzle shaft or a high pressure hose;
- a hollow nozzle body having a front portion, a rear inlet portion configured to engage the inlet nut, a central bore through at least the rear portion of the nozzle body, and a plurality of ports extending through the body from the central bore, wherein the nozzle body is configured to withstand an operating pressure of greater than 5 k psi;
- and
- a generally cylindrical flow insert disposed in the central bore between the inlet nut and at least the rear portion of the nozzle body, the insert having a plurality of through passages configured to communicate with the ports, wherein the flow insert is configured to maximize jet coherence through the ports exiting the nozzle body.
A nozzle assembly comprising:
- an inlet nut fastenable to a hollow shaft or a high pressure hose;
- a hollow nozzle body having a front portion, a rear inlet portion configured to engage the inlet nut, a central bore through at least the rear inlet portion of the nozzle body, and a plurality of ports extending through the body from the central bore, wherein the nozzle body is configured to withstand an operating pressure of at least 5 k psi;
- a switching valve assembly removably captured within at least a rear portion of the central bore of the nozzle body by the inlet nut;
- and
- a generally cylindrical flow insert configured to be disposed within the central bore in place of the switching valve assembly when switching functionality of the switching valve assembly is not needed, wherein the flow insert has a plurality of through passages each configured to communicate with at least one of the ports and wherein the flow insert cannot withstand operating pressure when not installed and captured within the central bore of the hollow nozzle body.
A flow insert for use in a switcher valve nozzle assembly including an inlet nut, a hollow nozzle body having a front portion, a rear inlet portion configured to engage the inlet nut, a central bore through at least the rear inlet portion of the nozzle body, and a plurality of ports extending through the body from the central bore, wherein the nozzle body is configured to withstand an operating pressure of at least 20 k psi, and a switching valve assembly removably captured within at least a rear portion of the central bore of the nozzle body by the inlet nut, the polymer flow insert comprising:
- a generally cylindrical body configured to be disposed within the central bore in place of the switching valve assembly when switching functionality of the switching valve assembly is not needed, wherein the flow insert has a plurality of through passages each configured to communicate with at least one of the ports and wherein the flow insert cannot withstand the operating pressure when not installed and captured within the central bore of the hollow nozzle body.
Dependencies are inferred from the claim text.