| 主权项 |
1. A power transmission gearbox having at least one lubrication system, the lubrication system including a lubrication pump that is arranged in a sump containing a lubrication liquid, the lubrication pump being in fluid flow communication with a fluid flow circuit leading to at least one spray means directed towards an internal space of a casing of the gearbox, the lubrication liquid being drawn from the sump by the lubrication pump in order to flow in the fluid flow circuit and be sprayed into the internal space by each spray means, wherein the gearbox includes an emergency tank suitable for containing a lubrication fluid, the emergency tank being in fluid flow communication with the fluid flow circuit, the emergency tank being connected by at least one pipe to the fluid flow circuit upstream from each spray means, the lubrication fluid being moved in the fluid flow circuit to each spray means by a gas that is set into motion by the lubrication pump in the event of a leak of the lubrication liquid. |
