Anti gas-lock pumping system
First Claim
Patent Images
1. An anti gas-lock valve for operative mounting within a pump having a pump housing with at least one outflow port, the pump having a plunger for upstroke and downstroke motion within the housing, the anti gas-lock valve comprising:
- a. a valve shaft having an inlet port, for allowing fluid inflow in a first direction towards the plunger, the valve shaft oriented within the pump housing such that a first end of the valve shaft is proximal to the plunger and a second end of the valve shaft is distal to the plunger; and
b. a valve head attached to the first end of the valve shaft, the valve head having at least one outlet port for allowing fluid outflow in a second direction away from the plunger; and
c. a valve plug slidably engaged with the valve shaft for reversible seating against the at least one outlet port of the valve head to permit fluid flow through the at least one outlet port during downstroke of the plunger, and out through the outflow port.
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Abstract
An improved fluid pumping system is described. The pump is designed such that any gas present in the fluid being pumped is completely displaced from the pumping chamber with each downstroke of a pump plunger. This prevents pump failure due to gas-locking by preventing gas build-up within the pump, thereby improving long-term pumping efficiency and increasing pump life.
34 Citations
22 Claims
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1. An anti gas-lock valve for operative mounting within a pump having a pump housing with at least one outflow port, the pump having a plunger for upstroke and downstroke motion within the housing, the anti gas-lock valve comprising:
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a. a valve shaft having an inlet port, for allowing fluid inflow in a first direction towards the plunger, the valve shaft oriented within the pump housing such that a first end of the valve shaft is proximal to the plunger and a second end of the valve shaft is distal to the plunger; and
b. a valve head attached to the first end of the valve shaft, the valve head having at least one outlet port for allowing fluid outflow in a second direction away from the plunger; and
c. a valve plug slidably engaged with the valve shaft for reversible seating against the at least one outlet port of the valve head to permit fluid flow through the at least one outlet port during downstroke of the plunger, and out through the outflow port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An anti gas-lock fluid pump comprising:
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a. a longitudinal pump barrel having at least one pump discharge port;
b. a plunger and piston slidably and sealingly engaged within the pump barrel for reciprocal movement within the pump barrel;
c. a valve shaft having at a first end a valve head in sealable contact with the pump barrel, located proximally to the plunger, and defining a pumping chamber between the valve head and the plunger;
the valve shaft and the valve head having an inlet port for allowing fluid into the pumping chamber on upstroke of the plunger; and
the valve head also having at least one valve head outlet port through which fluid may be expelled from the pumping chamber on plunger downstroke; and
d. a valve plug in sliding engagement with the valve shaft for reversible seating with the valve head on upstroke, and unseating with the valve head on downstroke to allow fluid to be expelled from the pump barrel through at least one pump discharge port. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification