HEAT RESISTANCE OF FLOOR COVERINGS (VEHICLES EQUIPPED WITH CATALYTIC CONVERTERS

Model test equipment was developed and experiments were performed to obtain the heat resistance temperature for various types of floor covering in vehicles conforming to emission control standards. Based on the test results, a target floor panel temperature was established, one which would maintain normal floor covering conditions and provide effective heat insulation. Of all the floor coverings, the insulator is the most likely to emit an offensive odor. To prevent this, the heated area of the floor panel should be less than 10 cm. in diameter. Smoke is produced by all floor coverings at panel temperatures between 180 and 200 degrees C. For heat insulation, the insulator is almost ineffective. Although felt is the most effective, it reaches its heat-resistance limit (when loaded) between 180 and 200 degrees C. Carpeting is the next most effective, but when loaded becomes almost ineffective regardless of the level of the panel temperature. For partial heat insulation, felt is most appropriate. Tests on heat conduction clarified the quantity of heat flowing from the exhaust system to the occupant compartment, allowing a reexamination of the capabilities of air conditioning systems. A new heat insulation device utilizing aluminum hydroxide in an aluminum foil envelope is effective in preventing vehicle fires due to overheating of floor panel and coverings.

  • Availability:
  • Supplemental Notes:
    • Presented at SAE Passenger Car Meeting, Troy, Michigan, 5-9 June 1978.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Ishii, K
  • Publication Date: 1978

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00396327
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 780626, HS-025 527U
  • Files: HSL, USDOT
  • Created Date: Aug 31 1985 12:00AM