Telescoping energy absorber with pressure relief valve capsule

Details Telescoping energy absorber with pressure relief valve capsule Telescoping energy absorber with pressure relief valve capsule

F - Mech Eng,Light,Heat,Weapons

16

F

293/26

F16F 9/06 (2006.01) B60R 19/06 (1980.01)

Patent

CA 1069562

TELESCOPING ENERGY ABSORBER WITH PRESSURE RELIEF VALVE CAPSULE Abstract of the Disclosure An energy absorber unit having inner and outer teles- coping cylinders with a pressure relief valve capsule retained in a centralized opening in or forming an integral part of the cylinder cap to control the flow of fluid between contractible and expandable fluid chambers in the unit. The valve capsule being load-sensitive maintains a substantially constant pressure in the unit so that unit stroke is proportional to impact velo- city. With this construction, the corners of vehicle bumpers experience a reduced swing arc as compared to velocity sensitive units so that clearance between bumper corners and vehicle body work can be reduced. On rebound return spring means forces the fluid through the valve capsule which, controlling the return fluid flow, reduces the rate of unit recovery.

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