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US 3,976,165 AGranted
Lubricating and oil seal system for a high speed compressor
AssigneeNorwalk-Turbo, Inc.
InventorKarol Pilarczyk
Life of this patent
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AssigneeNorwalk-Turbo, Inc.
InventorKarol Pilarczyk
Estimating the term…
A high speed centrifugal compressor is closely directly coupled to the power turbine of a two-shaft gas turbine having a gas generator section separate from its power turbine. Through the direct close coupling and center-line mounting of the gas turbine exhaust casing for free and uniform heat expansion, alignment between stationary and rotating parts of the power turbine and compressor is maintained free from mechanical problems. Bearings and oil seals are fed by an integrated lubrication and a sealing oil system utilizing a compact oil distribution manifold assembly incorporating a quick filter change structure. The gas turbine-compressor finds particularly useful application in areas where high power, compact, relatively maintenance-free units are required, as, for example, on offshore platforms in the natural gas industry.
An integrated oil system for providing lubricating and sealing oil to the bearings and oil seals of a gas compressor comprising a reservoir means containing thhe system oil, pump means for pumping the system oil at a pressure higher than the pressure of the gas in the compressor, seal oil feed means for conducting this higher pressure oil to the oil seals of the compressor, oil pressure reducing means for taking a portion of the higher pressure oil and reducing its pressure to a pressure lower than the pressure of the gas in the compressor suitable for lubricating bearings, lubrication oil feed means for conducting this lower pressure oil to the bearings of the compressor for lubrication thereof, and drain means for draining the oil from the bearings and seals back to the reservoir means.
Dependencies are inferred from the claim text.