Integrated ventilation mode and temperature control system for v

Details Integrated ventilation mode and temperature control system for v Integrated ventilation mode and temperature control system for v

1998-06-26

2000-02-29

Rivell, John

Radiant energy

Radio and microwave absorption wavemeters

251294, 454160, F16K 3153, F16K 3146, B60H 102

Patent

active

060312262

ABSTRACT:
A rotary temperature control system for use in controlling the temperature of a blended air stream supplied to a vehicle passenger compartment is combined with a rotary ventilation mode control system in a common housing. The ventilation mode and temperature control systems include manually operable rotary control knobs operatively connected through pull-pull cable systems to gears in the housing that operate a temperature blend door controlling the output temperature of a blended air stream and one or more vent dampers controlling the ventilation mode of the system. A drive connection in the housing includes irregularly shaped gears for producing a predetermined generally non-linear relationship between rotary movement of an input control member and rotary movement of the temperature blend door to produce a generally linear relationship between the rotary movement of the temperature control knob and the temperature of the air stream throughout a major portion of the rotary movement of the control knob.

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