OVERHEATED JOURNAL BEARING DERAILMENT PREVENTION SYSTEM

The patent application relates to an anti-derailment system to prevent train derailment due to axle failure resulting from journal bearing overheating. It includes a thermal sensor to continuously monitor the temperature of the bearing and to activate the brake system when the temperature exceeds a predetermined level. A thermally-responsive element located in the journal bearing adapter physically deforms to activate a power source. The resulting signal initiates an electro-explosive brake line venting mechanism, puncturing and venting the brake line to stop the train. Several configurations of the thermal sensor and the power source are possible.

• Supplemental Notes:
  • Government-owned invention available for licensing. Copy of application available NTIS.
• Corporate Authors:

  Department of the Navy

  Washington, DC  United States 
• Authors:
  • Armstrong, J H
  • Kluge, F C
• Publication Date: 1975-10-14

Media Info

• Pagination: 21 p.

Subject/Index Terms

• TRT Terms: Brake lines; Braking; Defects; Derailments; Detectors; Heating (Structures); Hot box detectors; Journal bearings; Journal boxes; Monitoring; Patents; Railroad cars; Roller bearings
• Uncontrolled Terms: Monitors
• Old TRIS Terms: Axle defects; Temperature sensitive elements
• Subject Areas: Data and Information Technology; Railroads;

Filing Info

• Accession Number: 00094717
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: PAT-APPL-622 355
• Files: TRIS
• Created Date: May 14 1976 12:00AM