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Damper device for railway vehicle automatic couplings

Brambilla G, +1 more
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TLDR
In this paper, a damper for automatic couplings in railway vehicles has elastic and hydraulic parts, the hydraulic part being double-acting and having two chambers which are interconnected through a variable flow restriction, for example a nozzle formed in part by a shaped axial pin, such that the damping force varies progressively in response to movement applied to the device.
Abstract
A damper device for automatic couplings in railway vehicles has elastic and hydraulic parts, the hydraulic part being double-acting and having two chambers which are interconnected through a variable flow restriction, for example a nozzle formed in part by a shaped axial pin, such that the damping force varies progressively in response to movement applied to the device.

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References
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