Fluid pump
First Claim
1. A fluid pump comprising:
- a substantially flat, plate-shaped pump body having an outlet opening and an inlet opening formed therethrough in parallel and adjacent to each other, wherein the outlet opening is arranged on center of said pump body, neither said inlet opening nor said outlet opening being provided with a check valve;
a plate-shaped displacer connected circumferentially to said pump body such that a pump chamber is defined therebetween, said pump chamber being substantially symmetrical with respect to said outlet opening;
drive means for positioning the displacer periodically at a first and at a second position, said drive means having a motive element, said motive element having first and second ends respectively, the first end being attached to the center of the displacer, the second end being attached to a wall of the pump body;
the displacer closing said outlet opening when it occupies its first end position and leaving said outlet opening free when it occupies its second end position and leaving the inlet opening free at both end positions thereof, said displacer, when moving from the first to the second end position, defining a flow-through gap which opens between the displacer and the pump body in the area of the outlet opening in dependence upon said movement, said flow-through gap being defined such that the flow through the outlet opening depends on the pressure in the pump chamber as well as on the respective opening degree of said flow-through gap.
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Accused Products
Abstract
A fluid pump has a pump body and a displacer, the displacer and the pump body being implemented such that a pump chamber is defined therebetween, the pump chamber having an inlet opening and an outlet opening, neither the inlet opening nor the outlet opening being provided with a check valve. A drive means is provided which positions the displacer periodically at a first and at a second end position. The displacer closes the outlet opening when it occupies its first end position and leaves the outlet opening free when it occupies its second end position and leaves the inlet opening free at both end positions thereof. The displacer, when moving from the first to the second end position, defines a flow-through gap which opens between the displacer and the pump body in the area of the outlet opening in dependence upon the movement, the flow-through gap being defined such that the flow through the outlet opening depends on the pressure in the pump chamber as well as on the respective opening degree of the flow-through gap.
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Citations
11 Claims
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1. A fluid pump comprising:
- a substantially flat, plate-shaped pump body having an outlet opening and an inlet opening formed therethrough in parallel and adjacent to each other, wherein the outlet opening is arranged on center of said pump body, neither said inlet opening nor said outlet opening being provided with a check valve;
a plate-shaped displacer connected circumferentially to said pump body such that a pump chamber is defined therebetween, said pump chamber being substantially symmetrical with respect to said outlet opening;
drive means for positioning the displacer periodically at a first and at a second position, said drive means having a motive element, said motive element having first and second ends respectively, the first end being attached to the center of the displacer, the second end being attached to a wall of the pump body;
the displacer closing said outlet opening when it occupies its first end position and leaving said outlet opening free when it occupies its second end position and leaving the inlet opening free at both end positions thereof, said displacer, when moving from the first to the second end position, defining a flow-through gap which opens between the displacer and the pump body in the area of the outlet opening in dependence upon said movement, said flow-through gap being defined such that the flow through the outlet opening depends on the pressure in the pump chamber as well as on the respective opening degree of said flow-through gap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- a substantially flat, plate-shaped pump body having an outlet opening and an inlet opening formed therethrough in parallel and adjacent to each other, wherein the outlet opening is arranged on center of said pump body, neither said inlet opening nor said outlet opening being provided with a check valve;
Specification