Heater unit for air-conditioner in automobile vehicle

Details Heater unit for air-conditioner in automobile vehicle Heater unit for air-conditioner in automobile vehicle

1977-08-01

1978-08-22

Camby, John J.

Heating systems

Heat and power plants

Vehicle

237 1238, 98 208, B60H 102

Patent

active

041083768

ABSTRACT:
A heater unit for air conditioner in automotive vehicles of a construction, wherein external cool air introduced into the heater unit is led into a first bypass, through which it is directed to the upper part of the vehicle cabin, while the cool air current is distributed by a first damper to both heat exchanger and first bypass in an adjustable manner so as to effect warming and/or cooling operation, in which warm air current discharged from the heat exchanger is intermingled with the cool air current in the first bypass to prevent the air current from becoming excessively heated, and the thus intermingled warm and cool air currents at their merging point is appropriately distributed by a second damper provided in the neighborhood of the merging point so as to maintain adequate temperature difference between the upper and lower ports of the vehicle cabin; a second bypass is further provided to communicatively connect a space at the entrance side of the heat exchanger to let the cool air current in with a space at the discharging side thereof to let the warm air current out, and a damper is provided in the second bypass to control, flow rate of the air current in the second bypass.

REFERENCES:
patent: 2718839 (1955-09-01), Wilfert
patent: 3646875 (1972-03-01), Zenkner
patent: 3807631 (1974-04-01), Mohr
patent: 3913834 (1975-10-01), Supper

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