Diffuser throttle ring control

Details Diffuser throttle ring control Diffuser throttle ring control

1982-06-28

1984-07-17

Marcus, Stephen

Rotary kinetic fluid motors or pumps

With control means responsive to non-cyclic condition...

Responsive to moving member developed fluid force, current...

415 27, 415 28, 415 48, 415158, F04D 2702

Patent

active

044603100

ABSTRACT:
A centrifugal vapor compressor having a two-position, pressure controlled diffuser throttle ring is disclosed. The throttle ring is positively maintained in a minimum or a maximum throttling position by supplying either a relatively low pressure or a relatively high pressure, respectively, to a cavity behind the throttle ring. The throttle ring may be one of any of a variety or types of throttle rings including a new, improved throttle ring having a back portion with a sealing means which facilitates sliding movements of the throttle ring and which prevents vapor flow between the cavity behind the throttle ring and the diffuser passageway.

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U.S. patent application Ser. No. 137,173, filed 4/4/1980, Inventor-Edson H. Byrns--our ref. 4602.
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U.S. patent appliction Ser. No. 193,507, filed 10/2/1980, Inventor Phiroze Bandukwalla--our ref. 4541.

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