Twin lubrication tank filling system

a filling system and lubrication oil technology, applied in the direction of lubricant transfer, lubrication elements, thin material processing, etc., can solve the problems of interfering with the refilling of the tanks, unable to ensure that both tanks are filled with lubrication, and difficulty in ensuring that both tanks are lubricated without overfilling one tank
US20070209880A1Inactive Publication Date: 2007-09-13HAMILTON SUNDSTRAND CORP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
HAMILTON SUNDSTRAND CORP
Publication Date
2007-09-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

A twin lubrication oil tank filling system with a single oil fill port that prevents overfilling of both a primary oil tank and a secondary oil with a gravity fill system by directing oil primarily into the secondary oil tank by means of a special oil diverter, a float valve for the secondary oil tank that closes when the oil level in the secondary tank reaches a full level to cause additional oil flow to pour into the primary oil tank and a float valve for the primary oil tank that closes when the oil level in the primary tank reaches a full level.
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Description

FIELD OF THE INVENTION

[0001] The invention relates to lubrication systems for machinery, and more particularly to a twin lubrication oil tank filling system with a common lubrication oil fill port for machinery that requires two separate lubrication oil systems. BACKGROUND OF THE INVENTION

[0002] A gearbox assembly to couple a prime mover to a load generally requires a lubrication system for lubricating its gears and bearings with lubrication oil. For example, an aeronautical auxiliary power unit (APU) has such a gearbox that connects a prime mover in the form of a gas turbine engine to loads such as a load compressor, electric generator and hydraulic pump. A lubrication oil tank generally mounts within the gearbox housing to provide a reservoir of such lubrication oil for the gearbox lubrication system.

[0003] Loads coupled to the gearbox may have their own lubrication system. For instance, the generator connected to such a gearbox may require lubrication by means of a lubrication...

Claims

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