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Safeguard system of a speed increasing/reducing mechanical assembly, especially of the helicopter "gear box" type, in case of lubricating oil loss

  • US 5,344,101 A
  • Filed: 10/27/1992
  • Issued: 09/06/1994
  • Est. Priority Date: 10/30/1991
  • Status: Expired due to Term
First Claim
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1. Safeguard system of a speed increasing/reducing mechanical assembly in case of lubricating oil loss, characterized by the fact it contains an additional cooling system of the casing of said mechanical assembly, with an inlet and an outlet arranged on the casing of this mechanical assembly, which are closed during normal operation and that open under the action of a control device at a preset value of a parameter significant for the lubricating oil loss, this control device actuating simultaneously the additional cooling system in order to provide a circulation of the coolant between the inlet and the outlet, so that this coolant, loaded with the calories further to the warm-up caused by the lubricating oil loss, may evacuate the calories via the outlet of the additional cooling system.

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