Gas turbine engine having oil level measurement system
AssigneePratt & Whitney Canada Corp.
InventorsRichard KOSTKA, David MENHEERE
Life of this patent
Estimating the term…
Abstract
The gas turbine engine can have an accessory gearbox having a sump; an oil tank; a user interface configured to generate a signal upon receiving a user input indicative of an oil measurement reading; and a pump configured to pump oil from the sump to the oil tank upon receiving the user input.
Claims20
A gas turbine engine having in serial flow communication a compressor section, a combustor and a turbine section, the gas turbine engine comprising:
- an accessory gearbox having a sump;
- an oil tank having an oil level sensor configured to measure a level of oil in the oil tank;
- an indicator adapted to indicate the measured level of oil to a user;
- a user interface configured to generate a signal when the user reads the measured level of oil from the indicator;
- a pump configured to pump oil from the sump to the oil tank upon receiving the signal.
A method for performing maintenance on a gas turbine engine having a core gas path, an accessory gearbox having a sump, and an oil tank, the method comprising:
- pumping oil from the sump into the oil tank automatically
- i) while the core gas path of the gas turbine engine is not in operation, and
- ii) contingent upon the reception of a user input from a user interface, the user input being indicative of an impending oil measurement reading by a user.
An oil level measurement system for an engine having an oil sump positioned below the level of oil in an oil tank, the oil level measurement system comprising:
- a user interface configured to generate a signal upon receiving a user input indicative of an impending oil measurement reading;
- a pump configured to pump oil from the sump to the oil tank upon receiving the signal.
Dependencies are inferred from the claim text.