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US 6,582,199 B1Granted
Multi-stage ejector pump
OwnerThilo Volkmanninventor
Life of this patent
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OwnerThilo Volkmanninventor
Estimating the term…
A multi-stage ejector pump having an ejector nozzle system with the nozzles situated coaxially behind each other and axially set apart from each other by a spaced distance. The ejector a nozzle system is made up of a set of individual nozzles and nozzle spacers. The ejector nozzle system can be sealingly pushed into a nozzle-receiving shaft of a housing element. The housing wall is interrupted in the area between adjacent nozzles to provide a fluid connection to suction chambers. Each individual nozzle is provided with support elements on its outer periphery. The support elements are axially set apart and provide tilt-free or low-tilt support in relation to the wall of the nozzle-receiving shaft. The aim of the invention is to provide a multi-stage ejector pump which has compact construction, interchangeable nozzles and a high degree of efficiency.
A multi-staged ejector pump comprising a housing element and a nozzle arrangement, said housing includes a pressure gas conduit having an opening in a face of said housing, a suction gas conduit having an opening in a face of said housing, and an exhaust conduit having an opening in a face of said housing, at least two of said pressure gas conduit, said suction gas conduit, or said exhaust gas conduit in a substantially parallel relationship to one another, said nozzle arrangement includes a first and second nozzle positioned coaxially in said exhaust gas conduit, said first and second nozzle includes at least one support element to reduce movement to said first and second nozzle in said exhaust gas conduit, wherein said nozzle arrangement includes at least one spacer positioned between said first and second nozzle, said spacer includes a central opening adapted to allow axial flow of a fluid between said first and second nozzles and a side opening adapted to allow fluid flow in a non-axial direction.
A multi-stage ejector pump comprising a housing element and a nozzle arrangement, said housing includes a pressure gas conduit having an opening in a face of said housing, a suction gas conduit having an opening in a face of said housing, and an exhaust conduit take having an opening in a face of said housing, said nozzle arrangement includes a first, second and third nozzles and first and second spacers positioned coaxially in said exhaust gas conduit, said first, second and third nozzles include at least one support element to reduce movement of said first and second nozzle in said exhaust gas conduit, said first spacer positioned between said first and second nozzle, said second spacer positioned between said second and third nozzle, each of said spacers includes a central opening adapted to allow axial flow of a fluid between said first and second nozzles and said second and third nozzles, each of said spacers includes a side opening adapted to allow fluid flow in a non-axial direction, side opening of said spacers allow fluid flow between said suction gas conduit and said nozzle arrangement in said exhaust gas conduit.
Dependencies are inferred from the claim text.