Emergency controller for an air conditioning system of an automo

Details Emergency controller for an air conditioning system of an automo Emergency controller for an air conditioning system of an automo

1980-10-16

1982-10-05

Tapolcai, Jr., William E.

Automatic temperature and humidity regulation

Mixing fluid of dissimilar temperature

Plenum type

165 24, 236 84, G05D 2313

Patent

active

043524524

ABSTRACT:
An emergency controller for an air conditioning system of an automotive vehicle which incorporates an electronic control circuit in the automatic temperature adjusting means to perform a proportional control over an air mixing door by the use of a vacuum power servo is operated to connect a vacuum source to the vacuum power servo or to cause the air to flow into the vacuum power servo so that the maximum cooling or heating operation can be achieved. Consequently, when a trouble occurs in the electronic control circuit during running in a high-temperature region or low-temperature region, the air conditioning system may immediately be fixed in the maximum cooling or heating operation without intervention of electric circuits.

REFERENCES:
patent: 2864590 (1958-12-01), Moore
patent: 2893700 (1959-07-01), Boylan et al.
patent: 3404835 (1968-10-01), Rodgers
patent: 3428115 (1969-02-01), Caldwell
patent: 3720371 (1973-03-01), Richards
patent: 3877638 (1975-04-01), Amano et al.
patent: 4262738 (1981-04-01), Kato et al.

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