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

1990-05-23

1991-06-25

Bennett, Henry

98205, B60H 100

Patent

active

050257110

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: 1666569 (1928-04-01), Kelch et al.
patent: 2634669 (1953-04-01), Greenmun
patent: 2737874 (1956-03-01), Gallay et al.
patent: 2929310 (1960-03-01), Getz
patent: 3082955 (1963-03-01), Obermaier
patent: 3661069 (1972-05-01), Grosseau
patent: 4216822 (1980-08-01), Izumi
patent: 4413550 (1983-11-01), Piano
patent: 4465123 (1984-08-01), Sarsten et al.

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