Simultaneous temperature and mode selector for heating and cooli

Details Simultaneous temperature and mode selector for heating and cooli Simultaneous temperature and mode selector for heating and cooli

1991-01-30

1991-12-10

Makay, Albert J.

Ventilation

Vehicle

Having inlet airway

454145, B60H 100

Patent

active

050707701

ABSTRACT:
In an automotive heater or air conditioner system the temperature control and the mode control for directing air flow to the desired outlet is controlled by a single actuator. A mixing chamber has inlet and outlet end walls for temperature control and mode control, respectively. Each wall has openings for air flow and has an associated rotary door for controlling air flow through the openings. The rotary doors are mounted on a common shaft for simultaneous rotation and the shaft is driven by a single actuator. A heater core is mounted in the chamber adjacent an opening in the inlet end wall. A mixer device blends hot and cold air in the chamber.

REFERENCES:
patent: 4469166 (1984-09-01), Aschoff et al.
patent: 4476773 (1984-10-01), Fehr
patent: 4665799 (1987-05-01), Bouvot

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