| 摘要 |
1,189,000. Automatic temperature control systems. SVENSKA FL€KTFABRIKEN A.B. Nov.1 1967 [Nov.7, 1966], No.49682/67. Heading G3R. [Also in Division F4] In a room air conditioning unit 1, a primary air inlet 2 is controlled by a damper 12 which is movable from its normal position 12a to a position 12b by a motor 13 in response to a room thermostat 11. The thermostat 11 also actuates the motors of valves 9, 10 which control heat-exchangers 6, 7 for a secondary air flow. The valve motors and the motor 13 may be pneumatic or electric and a relay 14 may be electro-pneumatic. |
