HYDRAULIC ENERGY ABSORBER - PATENT APPLICATION

DISCLOSED IS A HYDRAULIC ENERGY ABSORBING BUMPER SYSTEM FOR MOTOR VEHICLES THAT INCLUDES A BUMPER WITH TWO VARIABLE STROKE HUDRAULIC BUFFERS AFFIXED TO THE ENDS. BOTH THE STROKE AND THE RESISTANCE OF THE BUFFERS VARY IN RESPONSE TO THE IMPACT RECEIVED BY THE BUMPER; HOWEVER THE RESISTANCE PRESENTED BY EITHER BUFFER DURING ANY GIVEN STROKE IS CONSTANT THROUGHOUT THE LENGH OF THE STROKE. TORSION HINGES COUPLING THE BUFFERS TO THE BUMPER ALLOW THE BUFFERS TO STROKE UNEVENLY DURING OBLIQUE IMPACT YET REMAIN PARALLEL. THE BUMPERS ARE HYDRAULICALLY INTERCONNECTED SO THAT THE TOTAL ENERGY ABSORBED DURING UNEVEN STROKING IN RESPONSE TO THE OBLIQUE IMPACT IS THE SAME AS THE TOTAL ENERGY ABSORBED DURING A NORMAL IMPACT OF THE SAME VELOCITY. (MODIFIED AUTHOR ABSTRACT).

• Supplemental Notes:
  • DOT-TSC-OST-10002
• Corporate Authors:

  Office of the Secretary of Transportation

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Moritz, H C
  • Schwarz, R
• Publication Date: 1972-10-24

Media Info

• Pagination: 25 p.

Subject/Index Terms

• TRT Terms: Bumpers; Crash cushions; Energy absorbing materials; Hydraulics; Impacts; Shock absorbers; Structural design; Water
• Uncontrolled Terms: Hydraulic barriers; Hydraulic design
• Old TRIS Terms: Buffers; Energy absorbers; Water bumpers
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00224544
• Record Type: Publication
• Source Agency: National Technical Information Service
• Files: TRIS, USDOT
• Created Date: Jul 16 1974 12:00AM