Refrigeration – Automatic control – Of external fluid or means
Patent
1993-10-18
1995-01-31
Sollecito, John M.
Refrigeration
Automatic control
Of external fluid or means
62179, 454256, 454313, 454319, 236 493, F25D 1704
Patent
active
053850319
ABSTRACT:
A rotational speed of a fan is maintained at a preset one when an angle of a flap is at a maximum air-flow angle, increased by a specified value when the angle of the flap has been changed by a specified angle in the direction away from the position of the maximum air-flow angle, and decreased by a specified value when the angle of the flap has been changed by a specified angle in the direction toward the position of the maximum air-flow angle. It is possible to prevent any occurrence of condensation and air-flow pulsating noise without needing any complex control such as load response control and yet without requiring any complicate construction in the flap.
REFERENCES:
patent: 3684170 (1972-08-01), Roof
patent: 4676146 (1987-06-01), Takahashi et al.
patent: 4738116 (1988-04-01), Himeno et al.
Fukushima Toshimitsu
Katsuyama Hiroyoshi
Kizawa Yoshihiro
Makino Isamu
Yamada Toshiyuki
Daikin Industries Ltd.
Sollecito John M.
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