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US 11,230,947 B2Granted
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.
Claims18
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;
- a scavenge pump, the sump connected to the oil tank through the scavenge pump and via a scavenge line;
- an indicator adapted to indicate the measured level of oil;
- a user interface configured to generate a signal when the measured level of oil is read from the indicator;
- an auxiliary pump configured to pump oil from the sump to the oil tank upon receiving the signal;
- and
- an auxiliary line fluidly connecting the auxiliary pump to the oil tank, the auxiliary line being distinct from the scavenge line and bypassing the scavenge pump such that the auxiliary pump is connected to the oil tank independently of the scavenge pump.
5 more elements
An oil system for an aircraft engine, comprising:
- a sump of an accessory gearbox;
- 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;
- a user interface configured to generate a signal when the measured level of oil is read from the indicator, the user interface being a switch configured to be automatically triggered when a moveable component is moved to access the indicator;
- and
- a auxiliary pump configured to pump oil from the sump to the oil tank upon receiving the signal.
3 more elements
Dependencies are inferred from the claim text.