US 5,174,336 A · General purpose fluid control valve

Abstract

A fluid control valve (10) comprising: a fluid carrying core (12) and separatable magnetic field generating portion (14). The fluid carrying core (12) comprises: a magnetic armature (30) movable through a working gap (32) within a thin walled tube (34). The armature includes a first plurality of grooves (100) to permit fluid flow thereacross. The tube is joined to a magnetic first member (50) in a manner to form a leak-free seal (56) generally at one end of the tube. A second member (80) partially seals the other end of the tube and includes second flow means a second plurality of axial grooves (84) for receiving fluid carried to the valve (10) and for communicating same with the armature (30). Various passages are provided to carry fluid to and from the valve. The position and number of passages permit the valve to be used as a two-way valve or as a three-way valve passage means (88;64) for transporting fluid away from the valve (10).

Claims14

Dependent claims

A fluid control valve comprising:

a fluid carrying core comprising:
a magnetic armature responsive to a magnetic force movable through a working gap within a thin walled tube, the tube having first and second ends, the armature including a first plurality of axial passages about its periphery to allow fluid to flow from one end to another end;
a first member comprising a narrow portion slidingly received in the first end of the tube portion slidingly received end of the tube and secured thereto to provide a fluid tight seal therebetween devoid of any resilient material;
a second member slidingly received in the second end of the tube, secured to the tube and spaced from the first member and including at least one axial passage on its periphery;
wherein the spacing between the first and second members defines the working gap;
passage means for transporting fluid to the tube,
a magnetic field generating portion including a coil assembly positioned exterior to the core.

4 more elements

A fluid control valve comprising:

a fluid carrying core comprising:
a magnetic armature responsive to a magnetic force movable through a working gap within a thin walled tube, the tube having first and second ends, the armature including a first plurality of axial passages about its periphery to allow fluid to flow from one end to another end;
a first member comprising a narrow portion slidingly received in the first end of the tube and secured thereto to provide a fluid tight seal therebetween;
a second member slidingly received in the second end of the tube, secured to the tube and spaced from the first member and including at least one axial passage on its periphery;
wherein the spacing between the first and second members defines the working gap;
passage means for transporting fluid to the tube,
a magnetic field generating portion including a coil assembly positioned exterior to the core wherein the first member tightly fits in the first end and includes a shoulder, the tube welded to the first member proximate the shoulder to form a leak-free seal.

4 more elements

Dependencies are inferred from the claim text.

General purpose fluid control valve

Life of this patent

General purpose fluid control valve

Life of this patent

Abstract

Claims14