Process fluid lubricated pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11846297
APP PUB NO 20210324868A1
SERIAL NO

17209350

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A process fluid lubricated pump includes a pump having a pump shaft extending from a drive end to a non-drive end, first and last stage impellers, a drive unit exerting torque on the drive end to rotate the pump shaft, a balance drum connected to the pump shaft between the pump and the drive end, the balance drum defining a drum front side facing the pump and a drum back side, a relief passage between the balance drum and a first stationary part configured to be stationary with respect to a housing, the relief passage extending from the drum front side to the drum back side, the pump shaft radially supported in a non-contacting manner during operation of the pump, and a hydrodynamic radial pump bearing supporting the pump shaft, the radial pump bearing arranged at the non-drive end or at the drive end of the pump shaft.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
SULZER MANAGEMENT AGWINTERTHUR SWITZERLAND WINTERTHUR ZURICH

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
De, Raeve Karel Winterthur, CH 14 19
Gassmann, Simon Zürich, CH 10 33
Trottmann, Benedikt St. Gallen, CH 6 27
Welschinger, Thomas Radolfzell, DE 27 50

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