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US 7,063,512 B2Granted
Pump stabilizer and method
AssigneeNikkiso Co., Ltd.
InventorsWilliam G. Haesloop, Motoyasu Ogawa
Life of this patent
Estimating the term…
Abstract
A vertically-disposed pump shaft is supported by an upward force against the pump shaft during periods of non use of the pump thereby off-loading bearings normally supportive of the shaft to prevent damage thereto when the pump is moved. Additionally, a lateral support is provided at a lower end of the pump to prevent lateral movement while permitting axial movement, thereby reducing stresses against the pump housing and other components.
Claims15
A rotating machine comprising:
- a vertically-mounted shaft supported in a main housing, said shaft being normally supported by bearings within said housing and said shaft having an upper end extending through an upper end of said main housing;
- a movable shaft support for relieving said bearings of stress during periods of non use of said rotating machine, said shaft support providing an upward force on said shaft.
A pump comprising:
- a pump housing, said pump housing being oriented vertically;
- a shaft, said shaft being supported for rotation on bearings within said pump housing;
- a movable shaft support for selectively relieving said bearings of stress during periods of non-use of said pump, said shaft support providing an upward force on said shaft.
A method of supporting a pump shaft during periods of non-operation of a pump, said method comprising:
- selectively exerting an upward force against said shaft during said periods of non use thereby off-loading bearings normally supportive of said shaft.
Dependencies are inferred from the claim text.