Air delivery system for a transport refrigeration unit

Details Air delivery system for a transport refrigeration unit Air delivery system for a transport refrigeration unit

1988-11-14

1989-11-07

Tapolcai, William E.

Refrigeration

With vehicle feature

623234, 62429, 417212, 474133, B60H 132

Patent

active

048783609

ABSTRACT:
An air delivery system for a transport refrigeration unit having a dual speed prime mover, a compressor, a condenser, an evaporator, and first and second air delivery blowers for the condenser and evaporator, respectively. The first blower is directly driven by the prime mover and the second blower is driven by an adjustable speed arrangement. The adjustable speed arrangement includes a fixed pulley connected to the second blower, a pulley having a variable, selectable pitch diameter which is biased towards its maximum pitch diameter, an idler pulley, a belt linking the fixed, variable and idler pulleys, and an actuator for moving the idler pulley to select desired pitch diameters of the variable pulley via tension in the linking belt which opposes the bias associated with the variable pulley.

REFERENCES:
patent: 3415072 (1968-12-01), White
patent: 3789618 (1974-02-01), Feliz
patent: 4551986 (1985-11-01), Anderson et al.
patent: 4787214 (1988-11-01), Stillwell
patent: 4811569 (1989-03-01), Welch et al.

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