Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1986-02-25
1987-09-01
Cline, William R.
Heat exchange
Movable heating or cooling surface
Rotary drum
165 42, 236 49, 237 123B, F25B 2900
Patent
active
046902031
ABSTRACT:
An automotive air-conditioning system includes an arithmetic unit which provides combined control signals at least on the basis of data representing room temperature, fresh air temperature, set temperature and intensity of insolation; a blower control unit which controls the blowing rate of a blower according to the combined signals; an air mixing control unit which controls the opening of an air mixing door on the basis of the combined signals; a mode changing unit which establishes the defrosting mode, the face mode, the foot mode or the bilevel mode according to a mode changing signal based on the opening of the air mixing door and the temperature of an evaporator; a blowing rate control unit which increases the actual blowing rate of the blower gradually after the actuation of the blower; and a control unit which controls the air mixing door control unit and the mode changing unit on the basis of the temperature of the engine cooling water. The foot mode where conditioned air is blown through the foot opening is established while the blowing rate of the blower is being increased to a blowing rate corresponding to the combined signals after the actuation of the blower, and movement of the air mixing door beyond a predetermined position toward a position for a cooling mode is inhibited when the temperature of the engine cooling water is on the high level, so that agreeable air-conditioning is achieved without being affected adversely by the intensity of insolation.
REFERENCES:
patent: 4262738 (1981-04-01), Kato et al.
patent: 4417618 (1983-11-01), Yoshimi et al.
patent: 4498309 (1985-02-01), Kobayashi
patent: 4518032 (1985-05-01), Funasaki et al.
patent: 4523715 (1985-06-01), Ohsawa et al.
patent: 4531671 (1985-07-01), Schwenk
patent: 4537245 (1985-08-01), Nishimura et al.
patent: 4602675 (1986-07-01), Kobayashi
Cline William R.
Diesel Kiki Kabushiki Kaisha
Smith Randolph A.
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