Hydrospring

A hydrospring or hydro-spring is a spring damped by hydraulic fluid (typically oil) being driven through holes in a piston, as the piston moves in response to a force. The spring is often made of rubber. Inside a rubber hydrospring there are hydraulic viscous damping systems which damp movement in all three directions but require very few parts. Even the slack adjustment may be integrated into the element.[1]

Hydrosprings are used mainly as shock absorbers in applications such as damped suspension in railway bogies, bulldozer blade shock absorbers and as recoil absorbers for artillery.

  • A railway type rubber hydrospring
    A railway type rubber hydrospring[2]
  • A railway type rubber hydrospring in compressed state
    A railway type rubber hydrospring in compressed state
  • A railway type rubber hydrospring in relaxed state
    A railway type rubber hydrospring in relaxed state
  • Hydro-spring recoil system of British WWI 60 pounder gun, with working explained
    Hydro-spring recoil system of British WWI 60 pounder gun, with working explained

See also

References
  1. Hecht, Markus (2007). Wear and Energy Saving Bogie Design with Rubber Primary Springs – Principles and Experiences (pdf). IHHA Specialist Technical Session (STS). Kiruna, Sweden.
  2. EP patent 1369616
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