Thrust adjusting means for nozzle clamp ring

Details Thrust adjusting means for nozzle clamp ring Thrust adjusting means for nozzle clamp ring

1979-03-21

1980-12-30

Freeh, William L.

Rotary kinetic fluid motors or pumps

With lubricating, sealing, packing or bearing means having...

For shaft sealing, packing, lubricating or bearing means

415163, F01O 1100

Patent

active

042420407

ABSTRACT:
The invention comprises a rotary fluid handling apparatus having first and second coaxial bodies mounted for relative axial movement therebetween and having respective opposed radially facing annular surfaces. The bodies may be, for example, the stator of a turboexpander or compressor and a relatively rotatable clamping ring for a plurality of adjustable blades. A first seal including a sealing ring is disposed between and seals between the annular surfaces, and the apparatus defines a first pressure zone which communicates with one axial side of the seal. The first body has a first stop engageable with the sealing ring to permit the force exerted on the sealing ring by the pressure of the first zone to be transmitted to the first body. The second body carries a second stop engageable with the sealing ring to permit the force exerted on the sealing ring by the pressure of the first zone to be transmitted to the second body, and also to retain the sealing ring from force-transmitting engagement with the first stop. The second stop is further releasable to permit force-transmitting engagement between the sealing ring and the first stop.

REFERENCES:
patent: 3232581 (1966-02-01), Swearingen
patent: 3495921 (1970-02-01), Swearingen
patent: 3947147 (1976-03-01), Lortaeva

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