| 摘要 |
An impact absorber is provided for absorbing impact forces especially in case of a collision of a motor vehicle. The impact absorber includes an inner tube ( 1 ), which can be pushed into an outer tube ( 2 ) in a telescopic manner and which is closed with a bottom plate ( 3 ) at its free end projecting from the outer tube ( 2 ). Starting from the bottom plate ( 3 ) in the direction of the longitudinal axis ( 4 ) of the impact absorber, a gas space ( 5 ) filled with pressurized gas and a first, a fluid-filled liquid space ( 7 ), which is separated from the gas space ( 5 ) by a wall ( 6 ) displaceable in the inner tube ( 1 ), are arranged in the interior of the inner tube ( 1 ). The liquid space ( 7 ) is in connection through a throttle element with a second, fluid-filled liquid space ( 13 ), which adjoins the first liquid space ( 7 ) in the direction of the longitudinal axis ( 4 ) and is closed by a piston ( 9 ) fixed in the outer tube ( 2 ) towards the free end of the outer tube ( 2 ) in a liquid-tight manner.
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