Laterally Translating Seal Carrier For A Drilling Mud Motor Sealed Bearing Assembly

Patent · Tue Mar 23 04:00:00 EST 1993

OSTI ID:879180

Dietle, Lannie ^[1]

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1. Houston, TX

A sealing and lubrication assembly for rotating shafts intended for operation in an abrasive environment and wherein the rotary shaft may have lateral translation or excursion during its rotation. A housing receives the rotary shaft in bearing supporting relation and defines a lubricant chamber about the shaft. A seal carrier is movably positioned about the rotary shaft and has non-rotatable articulating or laterally translating relation with the housing. A high pressure rotary shaft seal is supported by the seal carrier and maintains bearing and sealing engagement with the rotary shaft during its lateral translation or excursion. The seal carrier is hydraulic force balanced and thus is not subject to pressure induced loads that might otherwise interfere with its articulation or lateral translation.

• Research Organization: Kalsi Engineering, Inc. (Sugarland, TX)
• DOE Contract Number: FG03-90ER80939
• Assignee: Kalsi Engineering, Inc. (Sugarland, TX)
• Patent Number(s): US 5195754
• Application Number: 07/702839
• OSTI ID: 879180
• Country of Publication: United States
• Language: English