Air conditioning system for a railway vehicle

Details Air conditioning system for a railway vehicle Air conditioning system for a railway vehicle

1975-06-13

1977-02-08

Wayner, William E.

Refrigeration

Automatic control

Refrigeration producer

62243, 104148R, F25B 2700

Patent

active

040066037

ABSTRACT:
An air conditioning system for a railway vehicle operable from an applied high voltage direct current, which system includes an alternating current induction motor driving a variable speed, helical screw-type refrigerant compressor. A variable frequency AC drive circuit is provided to power the motor from the high voltage direct current. The output frequency of the drive circuit is varied according to the cooling demand of the vehicle.

REFERENCES:
patent: 3079539 (1963-02-01), Guerth
patent: 3584279 (1971-06-01), Krauthamer et al.
patent: 3781614 (1973-12-01), Mokryrzki
patent: 3783360 (1974-01-01), Bundy
patent: 3795117 (1974-03-01), Moody, Jr. et al.
patent: 3803863 (1974-04-01), Jednacz
patent: 3866433 (1975-02-01), Krug

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