Compressor barrel assembly
Abstract
Abstract THE THREE STAGE CENTRIFUGAL COMPRESSOR OF THE PRESENT INVENTION EMPLOYS A ONE-PIECE CAST CASING HAVING A CYLINDRICAL BORE CONTAINING THEREIN A REMOVABLE BARREL ASSEMBLY, WHICH ASSEMBLY COMPRISES THREE DIRECTLY ENGAGING DIAPHRAGMS, THREE DIFFUSORS, THREE SHROUDS AND A ROTOR HAVING THREE IMPELLERS, ALL IN AXIALLY STACKED RELATIONSHIP. ONLY THE THREE DIAPHRAGMS ARE AXIALLY CLAMPED DIRECTLY TO EACH OTHER BY MEANS OF TENSION BOLTS. THE DIFFUSERS AND SHROUDS ARE HELD BY THE DIAPHRAGMS FOR AXIAL FREE PLAY AND BIASED IN ONE AXIAL DIRECTION BY AXIALLY COMPRESSED SEALING O-RINGS AND EFFECTIVE PISTON SURFACES UNDER THE INFLUENCE OF THE FLUID BEING PUMPED. THE END CLOSURE CONTAINING THE BEARINGS AND DRIVE FOR THE OVERHUNG ROTOR HAS A CYLINDRICAL SURFACE FLUSH WITH THE CYLINDRICAL BORE OF THE CASING, WHICH SURFACE IS OVERLAPPED BY THE OUTER CYLINDRICAL SURFACE OF ONE OF THE DIAPHRAGMS TO PROVIDE FOR AXIAL ALIGNMENT. FOUR ENGAGING CYLINDRICAL SURFACES ON THE DIAPHRAGMS FURTHER ASSURE AXIAL ALIGNMENT. FLUID PASSAGES ARE PROVIDED INTEGRALLY CAST IN THE DIAPHRAGMS AND CASING FOR CONDUCTING THE FLUID THROUGHJ INTERCOOLERS, BETWEEN STAGES.
Inventors
- 👤 K Pilarczyk
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |