Multiple compressor system

Details Multiple compressor system Multiple compressor system

1979-07-30

1980-12-02

Roberts, Edward L.

Pumps

Successive stages

With interstage intake or additional inlet to latter stage

417301, F04B 2304

Patent

active

042368766

ABSTRACT:
A multi-compressor system comprising first and second stage motor-compressor units, a low pressure line for transmitting vapor from a source thereof to the first stage unit, an intermediate pressure line for transmitting vapor between the first and second stage units, a high pressure line for transmitting vapor from the second stage unit, and a bypass line for transmitting vapor from the low pressure line to the intermediate pressure line to selectively bypass the first stage unit. The first stage unit includes a first supply of lubricant, a first compressor, and a first lubricant overflow passage for passing overflow lubricant from the first supply thereof into the first compressor. The second stage unit includes a second supply of lubricant, a second compressor, and a second lubricant overflow passage for passing overflow lubricant from the second supply thereof into the second compressor. The low pressure line includes a first section, and a second section extending substantially at a right angle to the first section. The bypass line includes a first bypass section connected to the first section of the low pressure line and extending substantially collinear therewith, and a check valve for preventing vapor flow from the intermediate pressure line to the low pressure line via the bypass line.

REFERENCES:
patent: 2606430 (1952-08-01), Pownall
patent: 3237852 (1966-03-01), Shaw
patent: 3241746 (1966-03-01), Shaw
patent: 3243101 (1966-03-01), Shaw

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