Sealing system for centrifugal pumps

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8870521
APP PUB NO 20120076643A1
SERIAL NO

13310540

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A centrifugal pump for delivering hot fluids, having a contacting shaft seal, a seal housing (13) for the shaft seal (14), and a return line (8) for a partial flow of the delivered fluid, in which no delivered fluid is discharged out of the seal housing (13); a separate housing cover (9) is disposed between the seal housing (13) and the pump housing (1); there is a contact surface which minimizes heat transfer between the seal housing (13) and the housing cover (9); and the return line (8) is connected to the housing cover (9) and/or to the pump housing (1).

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First Claim

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Patent Owner(s)

  • KSB AKTIENGESELLSCHAFT

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brecht, Bernhard Neustadt, DE 8 46
Bruhns, Uwe Gruenstadt, DE 6 55
Sehr, Frank Birkenheide, DE 2 8

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