Propfan turbine engine
AssigneeMotoren- und Turbinen-Union Munchen GmbH
InventorsHelmut Geidel, Alois Rohra
Life of this patent
Estimating the term…
Abstract
A propfan turbine engine having a reduction gearing for the propfan rotors is provided with a lubricating system of its own for the reduction gearing, the system being arranged axially between the gas turbine and the reduction gearing and formed as an annular assembly surrounding a drive shaft from a gas turbine to the reduction gearing. Cooling air is supplied to the lubricating system as a location which will not interfere with the supply of air to the compressor of the gas turbine.
Claims14
A propfan turbine engine comprising a gas turbine, a reduction gearing drivingly coupled to said gas turbine and spaced axially thereof, propfan rotor means drivingly connected to the reduction gearing, a lubricating system for said reduction gearing separate from a lubricating system of the gas turbine, said lubricating system for the reduction gearing including a tank for lubricant, a circuit for flow of lubricant between said tank and said reduction gearing, cooling means in said circuit for cooling the lubricant, and pump means for pumping the lubricant in said circuit, said lubricating system for the reduction gearing being in the form of an annular assembly arranged axially between said reduction gearing and said gas turbine, said gas turbine having an intake channel, said cooling means comprising an annular heat exchanger mounted radially inwards of said intake channel.
Dependencies are inferred from the claim text.