Reciprocating pump
OwnerVladimir SCEKICinventor
Life of this patent
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Abstract
A reciprocating pump including a sleeve comprising a first flow path element and a plunger receivable in the sleeve is provided. The plunger includes a fluid contact face and second flow path element in fluid communication with the fluid contact face. The sleeve and the fluid contact face define a compression chamber comprising an inlet and an outlet. The sleeve and the plunger are moveable relative to one another for adjusting overlap between the first flow path element and the second flow path element for diverting flow of fluid from the compression chamber and out of the second flow path element during a discharge stroke to control flow of fluid pumped out of the outlet.
Claims47
A reciprocating pump comprising:
- (a) a sleeve comprising a first flow path element;
- (b) a plunger receivable in the sleeve, the plunger comprising:
- i. a fluid contact face and
- ii. a second flow path element in fluid communication with the fluid contact face;
- wherein the sleeve and the fluid contact face define a compression chamber comprising an inlet and an outlet;
- and wherein the sleeve and the plunger are moveable relative to one another for adjusting overlap between the first flow path element and the second flow path element for diverting flow of fluid from the compression chamber and out of the second flow path element during a discharge stroke to control flow of fluid pumped out of the outlet.
A reciprocating pump comprising:
- (a) a sleeve comprising a sidewall, the sidewall comprising a control hole;
- (b) a plunger receivable in the sleeve, the plunger comprising:
- i. a fluid contact face and
- ii. a helical channel in fluid communication with the fluid contact face;
- wherein the sleeve and the fluid contact face define a compression chamber comprising an inlet and an outlet;
- and wherein the sleeve and the plunger are rotatable relative to one another about a common longitudinal axis to adjust the overlap between the control hole and the helical channel for diverting flow of fluid from the compression chamber and out of the control hole during a discharge stroke to control flow of fluid pumped out of the outlet.
A reciprocating pump comprising:
- (a) a sleeve comprising a sidewall, the sidewall comprising a helical channel;
- (b) a plunger receivable in the sleeve, the plunger comprising:
- i. a fluid contact face;
- ii. a sidewall;
- iii. a bore in fluid communication with the fluid contact face, a first end of the bore defining a control hole formed in the sidewall;
- wherein the sleeve and the fluid contact face define a compression chamber comprising an inlet and an outlet;
- and wherein the sleeve and the plunger are rotatable relative to one another about a common longitudinal axis to adjust the overlap between the control hole and the channel for diverting flow of fluid from the compression chamber and out of the control hole during a discharge stroke to control flow of fluid pumped out of the outlet.
A reciprocating pump comprising:
- (a) a sleeve;
- (b) a plunger receivable in the sleeve, the plunger comprising a fluid contact face, wherein the sleeve and the fluid contact face define a compression chamber comprising an inlet and an outlet;
- (c) an accumulator in fluid communication with the compression chamber for diverting flow of fluid away from the compression chamber during a discharge stroke to control flow of fluid pumped out of the output, the accumulator comprising:
- i. a housing;
- ii. a control element slidingly receivable in the housing, the control element comprising a fluid contact face, the fluid contact face and the housing defining an accumulation chamber;
- iii. a moveable stop configured to adjustably define a maximum volume of fluid diverted to the accumulation chamber by restricting movement of the control element;
- and
- iv. a force means biasing the control element away from the moveable stop.
A method of controlling flow of fluid pumped by a reciprocating pump during a discharge stroke, the method comprising:
- (a) providing a reciprocating pump comprising a sleeve and a plunger receivable in the sleeve, the sleeve comprising a first flow path element, the plunger comprising a face and a second flow path element in fluid communication with the face, wherein the sleeve and the face define a compression chamber comprising an inlet and an outlet, and the sleeve and the plunger are rotatable along a common axis relative to one another;
- and
- (b) rotatably adjusting overlap between the first flow path element and the second flow path element to divert flow of fluid from the compression chamber and out of the control hole.
A method of controlling flow of fluid pumped by a reciprocating pump during a discharge stroke, the method comprising:
- (a) providing a reciprocating pump comprising a compression chamber and an accumulator in fluid communication with the compression chamber, the accumulator comprising:
- i. a housing;
- ii. a control element slidingly receivable in the housing, the control element comprising a fluid contact face, the fluid contact face and the housing defining an accumulation chamber;
- and
- iii. a moveable stop configured to restrict movement of the control element to define a maximum volume of the accumulation chamber;
- (b) moving the moveable stop to adjust the maximum volume of the accumulation chamber to control a volume of fluid diverted from the compression chamber to the accumulation chamber.
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Dependencies are inferred from the claim text.