Cooling and lubrication arrangement for water cooled bearings ha

Details Cooling and lubrication arrangement for water cooled bearings ha Cooling and lubrication arrangement for water cooled bearings ha

1976-06-01

1977-06-07

Peters, Jr., Joseph F.

Cutlery

308127, F16C 124

Patent

active

040279286

ABSTRACT:
A cooling and lubrication arrangement for a bearing supporting a rotatable shaft wherein the bearing housing includes, a self contained lubrication system for the bearing, and an operatively associated improved cooling fluid flow chamber therein. The bearing housing has supporting structure to minimize conductive heat flow to the bearing and the improved cooling fluid flow chamber has one relatively thin supporting wall adjacent the bearing and is provided with an internal geometry which forms a zone of high velocity cooling fluid closely adjacent the said thin supporting wall to achieve a high heat transfer rate from the bearing to the cooling fluid flowing through the improved cooling fluid flow chamber. A conventional open or closed type cooling fluid circulating system is connected to the bearing housing for delivering cooling fluid to and removing the same from the cooling fluid flow chamber and such fluid circulating system may desirably include an auxiliary circulating device for use on hot standby condition or after shut down of the apparatus or equipment such as a turbine with which the bearing is operatively associated.
Additionally the cooling and lubrication arrangement having the improved fluid cooling chamber as above described wherein the self contained lubrication system for the bearing includes, a sump in the bearing housing adjacent at least a portion of the common wall with the fluid cooling chamber, at least one oil slinger ring mounted about and rotatable with the shaft and disposed in that portion of said sump adjacent the common wall of the fluid cooling chamber so that cooled lubricant from the lubricant sump will be delivered to the bearing on rotation of said shaft, and a return passage on the inboard side of said bearing extending through said relatively thin wall of the bearing housing to cool lubricant returning therethrough to the sump.

REFERENCES:
patent: 1942101 (1934-01-01), Howarth
patent: 2249021 (1941-07-01), McHugh
patent: 3532443 (1970-10-01), Johnson
patent: 3806210 (1974-04-01), Deleu

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