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US 7,404,705 B2Granted
Blending pump assembly
AssigneeInternational Dispensing Corporation
InventorMitchell A. Friedman
Life of this patent
Estimating the term…
Abstract
A blending pump assembly for accurately maintaining the proper ratio of two fluid components. Flow of a first fluid is utilized to drive a fluid motor, which in turn drives a pumping mechanism to inject a proportional amount of a second fluid into the flow of the first fluid. The fluid motor and pump are sized so that a predetermined ratio between the two fluids is maintained regardless of changes in pressure and flow rate of such first fluid.
Claims14
A system for blending fluids, comprising:
- a fluid motor housing having a fluid motor rotatable element positioned within a fluid motor open chamber on an interior of the fluid motor housing, a fluid motor inlet channel and a fluid motor outlet channel in fluid communication with the fluid motor open chamber, and a drive axle connected to the fluid motor rotatable element and extending through the fluid motor housing;
- a first fluid pump housing having a first fluid pump rotatable element positioned within a first fluid pump open chamber on an interior of the first fluid pump housing and isolated from fluid flow with the fluid motor open chamber, and a first fluid pump inlet channel and a first fluid pump outlet channel in fluid communication with the first fluid pump open chamber;
- and
- an intermediate drive assembly between and engaging said drive axle and said first fluid pump rotatable element such that torque generated by the fluid motor rotatable element is transferred to the first fluid pump rotatable element through said drive axle and said intermediate drive assembly.
1 more element
A blending pump comprising:
- a fluid motor housing having a plurality of fluid motor gears positioned within a fluid motor open chamber on an interior of the fluid motor housing, a fluid motor inlet channel and a fluid motor outlet channel in fluid communication with the fluid motor open chamber, and a drive axle connected to one of said fluid motor gears and extending through the fluid motor housing;
- a first fluid pump housing having a first plurality of fluid pump gears positioned within a first fluid pump open chamber on an interior of the first fluid pump housing and isolated from fluid flow with the fluid motor open chamber and a first fluid pump inlet channel and a first fluid pump outlet channel in fluid communication with the first fluid pump open chamber;
- and
- an intermediate drive assembly between and engaging said drive axle and one of said first fluid pump gears such that torque generated by the fluid motor gears is transferred to the fluid pump gears through said drive axle and said intermediate drive assembly.
1 more element
Dependencies are inferred from the claim text.