Lubrication – Systems – With mist or fog means
Reexamination Certificate
2007-02-13
2007-02-13
Fenstermacher, David (Department: 3682)
Lubrication
Systems
With mist or fog means
C184S055100
Reexamination Certificate
active
10613233
ABSTRACT:
An auxiliary lubrication system for an aircraft turbine engine includes a reservoir32of lubricant50and a venturi42to suction lubricant out of the reservoir and direct an lubricant mist at a bearing24or other component requiring lubrication. The venturi is directly connected to a source of motive fluid, such as pressurized air extracted from an engine flowpath10, and is continuously driven by the motive fluid. The auxiliary system accommodates a failure or malfunction of the primary, high pressure lubrication system. The auxiliary system operates during normal conditions, when the primary system is fully functional. If the primary system fails, the auxiliary system continues to operate for a limited time, until the lubricant in the reservoir is depleted, to provide an lubricant mist to the component being lubricated. The limited-duration lubricant supply allows the aircraft crew time to carry out actions required to safeguard the aircraft and its occupants.
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Japanese Office Action translation.
Baran Kenneth C.
Fenstermacher David
United Technologies Corporation
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