Refrigeration system with high speed, high frequency compressor

Details Refrigeration system with high speed, high frequency compressor Refrigeration system with high speed, high frequency compressor

1990-09-14

1991-11-19

Makay, Albert J.

Refrigeration

Automatic control

Diverse, cascade or compound refrigeration-producing system

62510, 62509, F25B 110, F25B 3102

Patent

active

050655906

ABSTRACT:
A refrigeration system utilizes a small high speed centrifugal compressor driven by a directly coupled, high frequency, electric motor. The motor has a double-ended shaft which supports the rotors of low pressure and high pressure centrifugal compressor stages. The motor operates in the refrigerant atmosphere so as to eliminate the requirement for rotating shaft seals. High frequency power (3750 Hz) is supplied to the motor, which runs at 75,000 RPM. The system utilizes a novel flash intercooler between the compressor stages.

REFERENCES:
patent: 2024323 (1935-12-01), Wyld
patent: 2587485 (1952-02-01), Kline
patent: 3011322 (1961-12-01), Tanzberger et al.
patent: 3848422 (1974-11-01), Schibbye
patent: 4151724 (1979-05-01), Garland
patent: 4868438 (1989-09-01), Okamoto et al.
patent: 4871934 (1989-10-01), Okamoto et al.

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