Fan powered aftercooler and control circuit for locomotive compr

Details Fan powered aftercooler and control circuit for locomotive compr Fan powered aftercooler and control circuit for locomotive compr

1997-03-31

1999-04-20

Lazarus, Ira S.

Heat exchange

With timer, programmer, time delay, or condition responsive...

Temperature responsive or control

62 93, 417243, 417 14, G05D 2300

Patent

active

058948813

ABSTRACT:
An electrical circuit for controlling the operation of a fan cooled aftercooler receiving pressurized air from a compressor located in a locomotive. The circuit includes a motor for driving the fan of the aftercooler, an electrical relay comprising a coil and contacts operated by the coil, and a temperature sensitive switch connected in electrical series with the coil. The contacts of the relay are connected in electrical series with the motor. The temperature sensitive switch is effective to open the circuit of the coil and thereby open the contacts to stop operation of the fan when ambient temperature falls to or below freezing.

REFERENCES:
patent: 1805101 (1931-03-01), Modine
patent: 2304151 (1942-03-01), Crawford
patent: 2693247 (1954-09-01), Olstad et al.
patent: 2783616 (1957-11-01), Dodge
patent: 2784571 (1957-02-01), Schelp
patent: 4830580 (1989-05-01), Hata et al.
patent: 5106270 (1992-04-01), Goettel et al.

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