Accession Number:

AD0748396

Title:

Evaluation of Refrigeration Compressor Quality Using Acoustic Techniques.

Descriptive Note:

Final letter rept.,

Corporate Author:

FRANKFORD ARSENAL PHILADELPHIA PA

Personal Author(s):

Report Date:

1972-03-01

Pagination or Media Count:

47.0

Abstract:

A system using acoustic techniques was designed for the nondestructive testing of refrigeration compressors. An initial system evaluation was restricted to one connecting rod bearing and one suction valve of a Dunham-Bush model BP-44II refrigeration compressor. An oversize bearing and a leaking suction valve were used to simulate defects which do not at the time of acceptance testing impair functionality of the compressor, but eventually lead to shortened functional life andor catastrophic failure. Results of the evaluation indicate that such defects have vibrational patterns which can be distinguished from nondefective bearings and suction valves. Author

Subject Categories:

  • Air Conditioning, Heating, Lighting and Ventilating

Distribution Statement:

APPROVED FOR PUBLIC RELEASE