Turbine engine comprising an oil supply system
AssigneeSafran Aircraft Engines
InventorsSébastien Oriol, Thibault Maxime Adrien Mallet
Life of this patent
Estimating the term…
Abstract
A turbine engine includes an oil supply system that has a main oil tank, a supply pump with an inlet and an outlet connected to a control system, an auxiliary oil tank, and a valve having a first inlet connected to the main tank, a second inlet connected to the auxiliary tank and an outlet connected to the inlet of the supply pump. The valve also has a member configured to move within the body and between a first position, in which the first inlet of the valve is in fluid communication with the outlet of the valve, and a second position, in which the second inlet of the valve is in fluid communication with the outlet of the valve.
Claims16
A turbine engine for an aircraft, comprising:
- variable pitch angle vanes,
- a control system for controlling the vanes comprising a control unit connected to at least one hydraulic actuator, and
- an oil supply system comprising:
- a main oil tank,
- a supply pump comprising an inlet and an outlet connected to the control system,
- an auxiliary oil tank,
- a valve comprising a body having a first inlet connected to the main tank, a second inlet connected to the auxiliary tank and an outlet, the valve further comprising a mobile member in the body and configured to move between a first position in which the first inlet of the valve is in fluid communication with the outlet of the valve and a second position in which the second inlet of the valve is in fluid communication with the outlet of the valve, and
- a centrifugal pump arranged between the valve and the supply pump, the centrifugal pump having an inlet connected to the outlet of the valve and an outlet connected to the inlet of the supply pump, the oil flowing from the valve to the supply pump through the centrifugal pump.
A turbine engine for an aircraft, comprising:
- a mechanical reducer,
- variable pitch angle vanes,
- a control system for controlling the vanes comprising a control unit connected to at least one hydraulic actuator, and
- an oil supply system comprising:
- a main oil tank,
- a supply pump comprising an inlet and an outlet connected to the control system,
- an auxiliary oil tank,
- a valve comprising a body having a first inlet connected to the main tank, a second inlet connected to the auxiliary tank and an outlet, the valve further comprising a mobile member in the body and configured to move between a first position in which the first inlet of the valve is in fluid communication with the outlet of the valve and a second position in which the second inlet of the valve is in fluid communication with the outlet of the valve,
- a first oil supply circuit, connecting the main tank to at least one lubrication enclosure containing at least one bearing to be lubricated,
- a second oil supply circuit, connecting the main tank to the control system and on which the valve and the supply pump are mounted,
- an oil recovery circuit for the control system, connecting the control system to the auxiliary tank, and
- a variable diaphragm valve mounted on the second supply circuit, the variable diaphragm valve being arranged between the supply pump and the mechanical reducer, the variable diaphragm valve being configured to open when the mobile member of the valve is in the first position and to remain at least partially open or to close when the mobile member of the valve is in the second position.
Dependencies are inferred from the claim text.