Dual direction windmill pump for geared turbofan engines
AssigneeUnited Technologies Corporation
InventorJacob Peter Mastro
Life of this patent
Estimating the term…
Abstract
A lubrication system may comprise a shaft including a shaft gear, a pump configured to supply a flow of lubricant to a component benefiting from lubrication and an input gear train coupled to the shaft gear and configured to drive the gear pump with a unidirectional rotation in response to a forward rotation and an reverse rotation of the shaft gear. The input gear grain may comprise a primary gear coupled to a common shaft. The input gear train may further comprise a forward shaft and a forward gear about the common shaft, wherein the forward gear is coupled to the forward shaft.
Claims20
A lubrication system comprising;
- a shaft including a shaft gear;
- a pump configured to supply a flow of lubricant to a component benefiting from lubrication;
- and
- an input gear train coupled to the shaft gear and configured to drive the pump with a unidirectional rotation in response to a forward rotation and a reverse rotation of the shaft gear.
A gas turbine engine comprising:
- a compressor section configured to compress a gas;
- a combustor section aft of the compressor section configured to combust the gas;
- a turbine section aft of the combustor section configured to extract work from the combusted gas;
- and
- a lubrication system comprising:
- a shaft including a shaft gear;
- a pump configured to supply a flow of lubricant to a component benefiting from lubrication;
- and
- an input gear train coupled to the shaft gear and configured to drive the pump with a unidirectional rotation in response to a forward rotation and an reverse rotation of the shaft gear.
A method of lubricating a geared architecture, the method comprising:
- rotating a shaft gear in a forward direction and rotating a primary gear and common shaft in a first direction;
- locking a forward clutch in response to the rotating in the first direction and rotating a forward gear in the first direction;
- and
- generating a flow of lubricant in response to rotating the forward gear in the first direction.
Dependencies are inferred from the claim text.