A RADIOMETRIC METHOD FOR APEX SEAL WEAR MEASUREMENTS IN ROTARY ENGINES

A radiometric method has been developed to measure apex seal wear in rotary engines. Seal wear rates are measured in ranges of micrograms/minute without engine disassembly, and at various speed and load conditions using a dynamometer. The method incorporates radioactive apex seals in the front rotor of a Mazda 10A engine. Neutron irradiation of commercial carbon-aluminum apex seals produced radioisotopes of iron and chromium. Experimental carbon-aluminum seals, containing terbium oxide as an additive to improve the nuclear properties of the seals, were also used.

• Corporate Authors:

  Society of Automotive Engineers

  485 Lexington Avenue
  New York, NY  United States  10017
• Authors:
  • Mayer, W J
  • Anderson, R L
  • Lechman, D C
• Publication Date: 0

Media Info

• Pagination: 9 p.

Subject/Index Terms

• TRT Terms: Durability tests; Engines; Measurement; Mechanical seals; Radiometers; Rotary engines; Securing and joining equipment; Testing equipment; Wear
• Old TRIS Terms: Radiometric method
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00095835
• Record Type: Publication
• Report/Paper Numbers: SAE #741066
• Files: TRIS
• Created Date: Jul 2 1975 12:00AM