CORROSION RESISTANT VALVE AND PLUNGER
First Claim
Patent Images
1. A valve for controlling flow of a liquid comprising:
- a valve body comprising an input port, an output port, and an orifice between the input port and the output port;
a spring positioned within a cylindrical cavity of the valve body;
a plunger within the cavity, wherein a position of the plunger in the cavity controls flow of the liquid between the input port and the output port through the orifice, the plunger comprising a core and a sleeve, the sleeve being made of a non-metallic corrosion resistant material and providing mechanical interfaces of the plunger, the core being made of a ferritic material.
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Abstract
A valve for controlling flow of a liquid is provided. The solenoid valve includes a valve body, a spring, and a plunger. The valve body includes an input port, an output port, and an orifice between the input port and the output port. The spring is positioned within a cylindrical cavity of the valve body. The plunger is within the cavity and the position of the plunger in the cavity controls flow of the liquid between the input port and the output port through the orifice. The plunger includes a core and a sleeve. The sleeve is made of a non-metallic corrosion resistant material and provides mechanical interfaces for the plunger. The core is made of a ferritic material.
18 Citations
20 Claims
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1. A valve for controlling flow of a liquid comprising:
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a valve body comprising an input port, an output port, and an orifice between the input port and the output port; a spring positioned within a cylindrical cavity of the valve body; a plunger within the cavity, wherein a position of the plunger in the cavity controls flow of the liquid between the input port and the output port through the orifice, the plunger comprising a core and a sleeve, the sleeve being made of a non-metallic corrosion resistant material and providing mechanical interfaces of the plunger, the core being made of a ferritic material. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A solenoid valve assembly for controlling flow of a liquid comprising:
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a valve body comprising at least two liquid ports and an orifice between the at least two ports; an electrical coil; a plunger movable within a cavity of the valve body, the plunger being made of a non-metallic corrosion resistant material wherein a position of the plunger controls flow of the liquid between the ports; a plunger core attached to the plunger such that the plunger core cannot contact other components of the valve assembly, the plunger core being made of a magnetic material responsive to electromagnetic forces of the electrical coil. - View Dependent Claims (8, 9, 10, 11)
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12. A plunger for controlling flow of a liquid through a valve comprising:
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a plunger shell made of a non-metallic corrosion resistant material wherein the plunger shell provides mechanical interfaces between the plunger and components of the valve; and a plunger core attached to the plunger shell, the plunger core comprising a ferritic material. - View Dependent Claims (13, 14, 15, 16)
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17. A plunger assembly slidably disposed in an internal passage of a valve assembly for controlling flow of a liquid through the internal passage, the plunger assembly comprising:
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a cylindrically shaped plunger shell made of a non-metallic corrosion resistant material; and a plunger core contained, at least partially, within the plunger shell such that the plunger core cannot contact components of the valve assembly, the plunger core comprising a metallic material responsive to electromagnetic forces of an electrical coil of the valve assembly. - View Dependent Claims (18, 19, 20)
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Specification