Multi-stage compressor capacity control apparatus

Details Multi-stage compressor capacity control apparatus Multi-stage compressor capacity control apparatus

1987-08-24

1989-03-28

Freeh, William L.

Pumps

Successive stages

Condition responsive control of fluid

417295, F04B 4902

Patent

active

048159506

ABSTRACT:
The invention has a control pressure extracting port in the delivery side of the low-pressure stage compressor to apply the control pressure to a piston device of the suction throttle valve, thereby making it possible to reliably cancel the starting unload operation and shift the operation mode to the full-load operation in a multi-stage compressor.

REFERENCES:
patent: 3105630 (1963-10-01), Lowler
patent: 3186630 (1965-06-01), Lamberton et al.
patent: 3367562 (1968-02-01), Persson et al.

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