Bearings – Rotary bearing – Plain bearing
Patent
1993-01-04
1994-02-22
Footland, Lenard A.
Bearings
Rotary bearing
Plain bearing
384117, 384312, F16C 1703
Patent
active
052881539
ABSTRACT:
In a tilting pad journal directly lubricated bearing the axially spaced apart sidewalls of the tilting pads are provided with extensions that have an axial space between them and contribute to defining the boundaries of a cool oil infeed well whose other boundaries are radially extending walls of adjacent pads or walls that are defined by slotting the leading ends of the pads. The pads are contained within the circular opening of a supporting ring member which has an oil infeed groove around its periphery. In line with each of the oil infeed wells there is an oil infeed passageway for delivering oil to the shaft surface exposed in the well by means of an interposed row of jets or orifices. Cool oil is fed into the wells, such that the interface between the bearing pad and the shaft, which only has oil from the well available to it, necessarily runs on cooler oil. The arrangement permits elimination of the conventional oil sealing rings which pre-existing bearings participate in defining a path or oil flow which results in all parts of the bearing assembly being totally immersed in oil with a consequence of increased power loss and heating due to shearing of the greater quantity of oil in the prior designs.
REFERENCES:
patent: 3807814 (1974-04-01), Stopp
patent: 4247157 (1981-01-01), Sigg
patent: 4300808 (1981-11-01), Yoshioka
patent: 4497587 (1985-02-01), Pine
patent: 4501505 (1985-02-01), Chambers
patent: 4568204 (1986-02-01), Chambers
patent: 4815865 (1989-03-01), Gerling
Glacier: "Tilting Pad Journal Bearings", Designers Handbook 10, p. 14, at 455-89 (no date).
Delaware Capital Formation Inc.
Footland Lenard A.
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