Patent ID: 6435578
Filing Date: 2002-08-20
Classification: B60R,F16F

Abstract:
An energy dissipating device for an automobile bumper, comprising:at least a first and a second energy dissipater, each energy dissipater having a hollow rod-piston therein, and each energy dissipater being at least partially filled with oil, said hollow rod-piston dividing an interior space of said energy dissipater into a front chamber and a back chamber, each energy dissipater further having a hollow oil-pin disposed in the back chamber, said hollow oil-pin having a plurality of damping holes; at least one oil tank at least partially filled with air; and a plurality of oil pipes, a first one of said oil pipes having one end connected to the back chamber of said first energy dissipater and having another end connected to the back chamber of said second energy dissipater, and a second one of said oil pipes having one end connected to said first one of said oil pipes and having another end connected to said oil tank.