Vehicle ventilating system
First Claim
1. An arrangement in a vehicle ventilating and temperature-adjusting system, the arrangement comprising:
- a ventilation unit having at least one inlet for entering air and having a plurality of ventilation outlets for the exit of air into the interior of a vehicle, the ventilation unit further having a cold air duct and a hot air duct, each connected for receiving air from the inlet and each having a respective duct outlet for the exit of air from the air duct to the ventilation outlets;
a heat exchanger mounted in the hot air duct;
at least one movable warm air flap mounted in the ventilation unit after the inlet, the warm air flap being movable into any of a respective plurality of angular attitudes for regulating the proportion of the air that enters through the inlet which flows through the heat exchanger;
at least one movable air distributor flap mounted in the ventilation unit between the duct outlets and the ventilation outlets, the air distributor flap being movable into any of a respective plurality of angular attitudes for distributing the air that exits from the duct outlets among the ventilation outlets;
first and second electric servo means connected to the warm air flap and the air distributor flap, respectively, each of the servo means being selectively activable for moving the respective flap to any of its respective plurality of angular attitudes;
a first transducer for providing a first temperature signal representing an actual interior temperature;
a second transducer for providing a second temperature signal representing a desired interior temperature; and
an electronic unit connected for receiving the first and second temperature signals and operable for comparing the first and second temperature signals and for transmitting output signals to the first and second servo means for synchronizing and controlling the angular attitudes of the respective flaps.
1 Assignment
0 Petitions
Accused Products
Abstract
Method and arrangement for providing, in a vehicle ventilating and temperature-regulating system, automatic regulation of flaps for adjusting the temperature of and distributing ventilation air to the vehicle interior. In the system, a ventilation unit has at least one regulatable warm air flap for a heat exchanger mounted in the unit and at least one regulatable air distributor flap for distributing ventilation air to outlets opening out in the vehicle interior. The respective regulatory movements of the flaps are synchronized and made infinitely variable by means of servo means controlled by an electronic unit which receives signals from temperature transducers and, after comparison with signals representing actual and desired interior temperatures, transmits output signals to the servo means for regulating the relative settings of the flaps.
15 Citations
18 Claims
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1. An arrangement in a vehicle ventilating and temperature-adjusting system, the arrangement comprising:
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a ventilation unit having at least one inlet for entering air and having a plurality of ventilation outlets for the exit of air into the interior of a vehicle, the ventilation unit further having a cold air duct and a hot air duct, each connected for receiving air from the inlet and each having a respective duct outlet for the exit of air from the air duct to the ventilation outlets; a heat exchanger mounted in the hot air duct; at least one movable warm air flap mounted in the ventilation unit after the inlet, the warm air flap being movable into any of a respective plurality of angular attitudes for regulating the proportion of the air that enters through the inlet which flows through the heat exchanger; at least one movable air distributor flap mounted in the ventilation unit between the duct outlets and the ventilation outlets, the air distributor flap being movable into any of a respective plurality of angular attitudes for distributing the air that exits from the duct outlets among the ventilation outlets; first and second electric servo means connected to the warm air flap and the air distributor flap, respectively, each of the servo means being selectively activable for moving the respective flap to any of its respective plurality of angular attitudes; a first transducer for providing a first temperature signal representing an actual interior temperature; a second transducer for providing a second temperature signal representing a desired interior temperature; and an electronic unit connected for receiving the first and second temperature signals and operable for comparing the first and second temperature signals and for transmitting output signals to the first and second servo means for synchronizing and controlling the angular attitudes of the respective flaps. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An arrangement in a vehicle ventilating and temperature-adjusting system, the arrangement comprising:
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a ventilation unit having at least one inlet for entering air and having a plurality of ventilation outlets for the exit of air into the interior of a vehicle, the ventilation unit further having first and second air ducts, each connected for receiving air from the inlet and each having a respective duct outlet for exit of air from the ducts to the outlets; temperature changing means mounted in the first air duct for changing the temperature of air flowing through the first air duct; regulating means mounted in the ventilation unit after the inlet and selectively adjustable over a respective range of positions for regulating the proportion of the air that enters through the inlet that flows through the first air duct; distributing means mounted in the ventilation unit between the duct outlets and the ventilation outlets and selectively adjustable over a respective range of positions for distributing the air that exits from the duct outlets among the plurality of ventilation outlets; control circuitry connected for sensing at least one temperature and for selectively adjusting the regulating and distributing means over their respective ranges of positions in a synchronized manner in response to the sensed temperature for controlling the temperature of the air and the distribution of the air among the outlets. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification