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MAGNETIC BEARINGS FOR MINIATURE HIGH SPEED TURBOMACHINES

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
11950
Program Year/Program:
1991 / SBIR
Agency Tracking Number:
11950
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Creare
P.O. Box 71 Hanover, NH 03755-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1991
Title: MAGNETIC BEARINGS FOR MINIATURE HIGH SPEED TURBOMACHINES
Agency: NASA
Contract: N/A
Award Amount: $499,342.00
 

Abstract:

THIS PROGRAM IS AIMED AT THE DEVELOPMENT OF A NOVEL ELECTROMAGNETIC (E-M) BEARING SYSTEM SPECIFICALLY FOR MINIATURE HIGH-SPEED TURBOMACHINES USED IN SPACEBORNE TURBO-BRAYTON CRYOCOOLERS. COMPARED WITH GAS BEARINGS CURRENTLY IN USE, THE E-M BEARINGS PROVIDE GREATER RUGGEDNESS AND WILL ALLOW FOR OPERATION AT LOWER TEMPERATURES AND IN VACUUM ENVIRONMENTS. THESE ATTRIBUTES OFFER THE POTENTIAL FOR MAJOR IMPROVEMENTS IN CRYOCOOLER EFFICIENCY AND RELIABILITY, PARTICULARLY AT THE TEMPERATURESAND REFRIGERATION CAPACITIES ASSOCIATED WITH SURVEILLANCE SENSORS. IN THE PROPOSED PROGRAM, THE TECHNOLOGY OF ACTIVE E-M BEARINGS, WHICH IS RELATIVELY WELL DEVELOPED FOR LARGE SHAFTSIZES, WILL BE EXTENDED TO MINIATURE TURBOMACHINES. THE KEYCHALLENGE IN MINIATURIZING E-M BEARINGS IS THE DEVELOPMENT OF MINIATURE SHAFT POSITION SENSORS THAT ARE NEEDED TO CONTROL THE BEARING FORCE. IN PHASE I, AN E-M BEARING USING A NOVEL CAPACITIVE SENSOR WILL BE DEMONSTRATED. THE DETAILED DESIGN, DEVELOPMENT AND DEMONSTRATION OF A COMPLETEMINIATURE E-M BEARING SYSTEM IN A PROTOTYPE TURBOMACHINE IS PLANNED FOR PHASE II.

Principal Investigator:

Jayathi Y. Murthy
Principal Engineer
6036433800

Business Contact:

James a. block
PRESIDENT
6036433800
Small Business Information at Submission:

Creare, Inc.
P.o. Box 71 Hanover, NH 03755

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No