Straight fluid flow solenoid valve
AssigneeLiberty Controls, Inc.
InventorsJim D. Miller, Robert J. Rudisil
Life of this patent
Estimating the term…
Abstract
A straight fluid flow solenoid valve 10 comprising a conduit 24 having an inlet 148, an outlet 146 and a seat 88 member therein with an aperture 90 therethrough; a plunger 68, backstop 76 and spring 70 positioned inside the conduit 24 such that when a voltage is impressed upon a coil 22 circumferentially positioned around the exterior of the conduit 24, the plunger 68 is moved from a closed position to an open position thereby allowing a fluid to pass through the solenoid valve 10 in a substantially laminar flow stream while engaging the plunger 68 and the backstop 76.
Claims14
A Straight Fluid Flow Solenoid valve comprising:
- a substantially linear conduit having an inlet and outlet lineally aligned with an outlet of a source supplying a fluid flow;
- a seat having an aperture to allow a fluid flow to pass therethrough, said seat being secured to an inner wall portion in a first portion of said conduit,
- a backstop secured to an inner wall portion in a second portion of said conduit,
- said backstop including means for allowing a substantially laminar flowing fluid to pass adjacent thereto;
- a plunger positioned in said conduit between said seat and said backstop,
- said plunger including means for preventing a fluid flow through said seat aperture when first predetermined conditions are satisfied, and means for allowing a fluid flow to pass adjacent thereto when second predetermined conditions are satisfied;
- means for moving said plunger from a first position to a second position thereby forcibly engaging said plunger against said backstop to allow fluid flow through said aperture;
- and
- means for returning said plunger from said second position to said first position thereby forcibly engaging said plunger against said seat to prevent fluid flow through said seat aperture.
An on-off flow control valve having a substantially straight fluid flow passing therethrough, comprising:
- a substantially linear enclosure having an inlet and outlet lineally aligned with an outlet of a source supplying a fluid flow to said enclosure;
- a seat having an aperture to allow a fluid flow to pass therethrough said seat being secured to an inner wall portion in a first portion of said enclosure so that the directions of fluid flow entering said enclosure, passing through said aperture and exiting said enclosure are all substantially parallel;
- a backstop secured to an inner wall portion in a second portion of said enclosure, said backstop including means for allowing a substantially laminar flowing fluid to pass adjacent thereto;
- means for preventing a fluid flow through said enclosure when first predetermined conditions are satisfied.
A method for fabricating a solenoid valve having no internal fluid flow direction changes, comprising the steps of:
- a. providing an enclosure having an inlet and outlet lineally aligned with an outlet of a source supplying a fluid flow to said enclosure;
- b. providing a seat having an aperture to allow a fluid to pass therethrough, said seat being secured to an inner wall portion in a first portion of said enclosure;
- c. providing a backstop secured to an inner wall portion in a second portion of said enclosure, said backstop including means for allowing a substantially laminar flowing fluid to pass adjacent thereto;
- d. preventing a fluid flow through said enclosure when first predetermined conditions are satisfied;
- and
- e. allowing a fluid flow through said enclosure when second predetermined conditions are satisfied, said fluid flow through said enclosure remaining substantially linear between said inlet and said outlet.
Dependencies are inferred from the claim text.