Liquid additive injection pump with mixing chamber and one way valve
AssigneeDosmatic USA, Inc.
InventorFrank A. Walton
Life of this patent
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Abstract
A liquid additive injection pump for injecting a predetermined amount of a secondary fluid into a primary fluid stream wherein a fluid mixing chamber is disposed within the pump housing assembly. A gasket having at least one one-way valve is positioned between the pump assembly components and mixing chamber thereby allowing a primary fluid to pass through the pump assembly and into the mixing chamber where the introduction of a second fluid occurs. The mixed fluids are then discharged through an outlet. The one-way valve gasket assembly acts to prevent the mixed and/or secondary fluid from passing upstream of the gasket assembly and into the pump assembly.
Claims11
An apparatus for introducing a secondary fluid into a primary fluid, comprising:
- a fluid powered motor driven by a primary fluid stream;
- a liquid additive injection pump driven by the fluid powered motor;
- a lower housing body secured to the housing cover wherein the lower housing body includes an outer cylinder wall and an inner cylinder wall defining a fluid mixing chamber;
- and
- a gasket ring removeably secured between the housing cover and the lower housing body, wherein said gasket ring comprises an outer perimeter and at least one gap, wherein said at least one gap is located on the outer perimeter of said gasket ring, and wherein each gap comprises a corresponding one-way valve, and wherein the one-way valve allows the primary fluid stream to pass into the fluid mixing chamber.
A method for introducing a secondary fluid into a primary fluid stream, comprising:
- introducing a primary fluid into a fluid pump assembly;
- pumping the primary fluid into a fluid mixing chamber via a removeably secured gasket ring comprising an outer perimeter and at least one gap, wherein said at least one gap is located on the outer perimeter of said gasket ring, and wherein each gap comprises a corresponding one-way valve;
- and,
- injecting a secondary fluid into the fluid mixing chamber.
Dependencies are inferred from the claim text.