Eccentric screw pump with a pressure chamber between an elastomeric stator portion and a casing

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12215689
APP PUB NO 20220389926A1
SERIAL NO

17778262

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Importance

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Abstract

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An eccentric screw pump with a rotor (2) and with a rotationally fixed stator (6; 6′) surrounding the rotor (2). The rotationally fixed stator includes at least one elastomeric portion, wherein a pressure chamber (16) is arranged on this elastomeric portion of the stator (6; 6′) at a side facing away from the rotor (2). The pressure chamber (16) is connected to a pressure region of the eccentric screw pump such that the at least one elastomeric portion of the stator (6; 6′) is subjected to a pressure produced by the eccentric screw pump.

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First Claim

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Patent Owner(s)

  • GRUNDFOS HOLDING A/S

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Linnemann, Nielsen Niels Erik Bjerringbro, DK 3 4

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