Internal lubrication screw pump for hollow shaft

Details Internal lubrication screw pump for hollow shaft Internal lubrication screw pump for hollow shaft

2005-02-15

2005-02-15

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Runner has spirally arranged blade or fluid passage

Extending along runner axis

C415S112000, C415S175000, C184S006160, C184S006180

Reexamination Certificate

active

06854955

ABSTRACT:
A rotary machine is provided, such as an electromechanical device, that includes a housing having a lubricating oil disposed within the housing. A shaft is rotatable about an axis relative to the housing. The shaft has a passage extending to an end portion of the shaft. A screw includes a body arranged coaxial to the shaft, and preferably affixed thereto. The screw includes helical blades extending outwardly from the body adjacent to a shroud. The shroud is arranged about the screw forming a gap between the blades and the shroud. Rotation of the shaft and screw pump the oil to the end portion of the shaft and into the passage from which the oil may be delivered to other machine components, such as the bearings. A flow straightener having radial fins may be arranged between the screw and the passage for controlling the flow of oil into the passage preventing a vortex.

REFERENCES:
patent: 2125645 (1938-08-01), Money
patent: 3493168 (1970-02-01), Valbjorn
patent: 3664461 (1972-05-01), Leffers et al.
patent: 4714405 (1987-12-01), Schaefer et al.
patent: 5827042 (1998-10-01), Ramsay
patent: 5984627 (1999-11-01), Ramsay
patent: 6210103 (2001-04-01), Ramsay
patent: 6234490 (2001-05-01), Champlin
patent: 6296254 (2001-10-01), Young
patent: 6450785 (2002-09-01), Dellby et al.
patent: 6716001 (2004-04-01), Kim
A.B. Crease, Michael Neale and Associates, U.K., 7th International Conference On Fluid Sealing, Sep. 24th-26th, 1975, BHRA Fluid Engineering, Cranfield, Bedford, England.

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