Multistage centrifugal compressor without seals and with axial t

Details Multistage centrifugal compressor without seals and with axial t Multistage centrifugal compressor without seals and with axial t

1992-11-17

1994-10-25

Kwon, John T.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

415104, F01D 514

Patent

active

053583787

ABSTRACT:
A modular multistage centrifugal compressor with plural rotors on a common drive shaft driven by a high speed drive. A throttled leakage path between adjacent stages of the compressor reduces the axial loading on the rotors, which have axial freedom on the common drive shaft, to essentially zero. This same throttled leakage path flows between stages in the area around the common drive shaft, eliminating the need for interstage shaft seals. The compressor accommodates a family of drive sources including motors, diesel and gas engines, CNG engines and direct drive turbines.

REFERENCES:
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patent: 1238731 (1917-09-01), Anderson
patent: 3874812 (1975-04-01), Hanagarth
patent: 4655681 (1987-04-01), Mori et al.
patent: 4802826 (1989-02-01), Hall
patent: 4820115 (1989-04-01), Bandukwalla
patent: 4867633 (1989-09-01), Gravelle
patent: 4909705 (1990-03-01), Katsura et al.
patent: 4927327 (1990-05-01), Keller
patent: 4969803 (1990-11-01), Turanskyj

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