Air conditioning system for a motor vehicle

• US 20040003602A1
• Filed: 03/21/2003
• Published: 01/08/2004
• Est. Priority Date: 03/23/2002
• Status: Active Grant

• Current Assignee: Daimler Chrysler Company LLC (Stellantis NV)
• Original Assignee: Daimler Chrysler Company LLC (Stellantis NV)
• Inventors: Straub, Wolfgang
• Granted Patent: US 6,766,654 B2
• Time in Patent Office: Days
• US Class Current: 62/91
• CPC Class Codes: B60H 1/008 the input being air quality
• CPC Class Codes: B60H 1/00864 Ventilators and damper doors
• CPC Class Codes: B60H 1/3233 characterised by condensed liquid drainage means
• CPC Class Codes: B60H 3/0085 Smell or pollution preventing arrangements B60H3/0007, B60H3/0071, B60H3/02, B60H3/06 take precedence

Abstract

An air conditioning system for a motor vehicle includes an air conditioning box through which blower air can flow and in which an evaporator and, at a distance therefrom, a heat exchanger are arranged, and including an air distributor which has air outlet openings which may be controlled by air control elements, and a water outlet arranged between the evaporator and heat exchanger, and having a control arrangement for forcibly ejecting the blower air emerging at the evaporator via the water outlet into the vehicle environment. For the purpose of forcibly ejecting the loaded blower air in a cost-effective and construction-space-saving manner without losses in efficiency, the control arrangement may be formed in the air outlet openings by the air control elements which, during the ejection, are forcibly closed.

Claims

1. An air conditioning system for a motor vehicle, comprising:

an air conditioning box through which blower air is flowable;

an evaporator arranged in a refrigerant circuit and arranged in the air conditioning box;

a heat exchanger arranged in the air conditioning box at a distance from the evaporator;

an air distributor arranged downstream of the heat exchanger and including air outlet openings;

a water outlet arranged between the evaporator and the heat exchanger; and

a control arrangement configured to forcibly eject blower air emerging at the evaporator via the water outlet into a vehicle environment, the control arrangement including air control elements configured to control the air outlet openings, the control arrangement configured to forcibly close the air control elements for ejection.

2. The air conditioning system according to claim 1, further comprising adjustment elements configured to act on the air control elements to adjust the air control elements, the adjustment elements connected to a control unit configured to activate the adjustment elements when a criterion requiring a forced ejection occurs to initiate an adjusting process to close the air control elements.

3. The air conditioning system according to claim 2, wherein the criterion is derived from a start-up of the motor vehicle.

4. The air conditioning system according to claim 3, further comprising an arrangement configured to initiate forced ejection with the start-up of the motor vehicle and to end the forced venting after a fixed period of time.

5. The air conditioning system according to claim 2, wherein the criterion is derived from air moisture at the evaporator.

6. The air conditioning system according to claim 2, wherein the criterion is derived from a concentration of refrigerant in the blower air, the refrigerant emitted from the refrigerant circuit of the evaporator.

7. The air conditioning system according to claim 5, wherein the control unit is connected on an input side to at least one of a moisture and a gas detector arranged in the air conditioning box.

8. The air conditioning system according to claim 6, wherein the control unit is connected on an input side to at least one of a moisture and a gas detector arranged in the air conditioning box.

9. The air conditioning system according to claim 7, wherein the detector is arranged in the air conditioning box in a sector of the air conditioning box bounded by the evaporator and the heat exchanger.

10. The air conditioning system according to claim 8, wherein the detector is arranged in the air conditioning box in a sector of the air conditioning box bounded by the evaporator and the heat exchanger.

11. An air conditioning system for a motor vehicle, comprising:

an air conditioning box through which blower air is flowable;

an evaporator arranged in a refrigerant circuit and arranged in the air conditioning box;

a heat exchanger arranged in the air conditioning box at a distance from the evaporator;

an air distributor arranged downstream of the heat exchanger and including air outlet openings;

a water outlet arranged between the evaporator and the heat exchanger; and

control means for forcibly ejecting blower air emerging at the evaporator via the water outlet into a vehicle environment, the control means including air control elements for controlling the air outlet openings, the control means forcibly closing the air control elements for ejection.

12. The air conditioning system according to claim 11, further comprising adjusting elements for acting on the air control elements for adjusting the air control elements, the adjusting elements connected to a control unit for activating the adjusting elements when a criterion requiring a forced ejection occurs to initiate an adjusting process to close the air control elements.

13. The air conditioning system according to claim 12, wherein the criterion is derived from a start-up of the motor vehicle.

14. The air conditioning system according to claim 13, further comprising means for initiating forced ejection with the start-up of the motor vehicle and for ending the forced venting after a fixed period of time.

15. The air conditioning system according to claim 12, wherein the criterion is derived from air moisture at the evaporator.

16. The air conditioning system according to claim 12, wherein the criterion is derived from a concentration of refrigerant in the blower air, the refrigerant emitted from the refrigerant circuit of the evaporator.

17. The air conditioning system according to claim 15, wherein the control unit is connected on an input side to at least one of a moisture and a gas detector arranged in the air conditioning box.

18. The air conditioning system according to claim 16, wherein the control unit is connected on an input side to at least one of a moisture and a gas detecting means arranged in the air conditioning box.

19. The air conditioning system according to claim 17, wherein the detecting means is arranged in the air conditioning box in a sector of the air conditioning box bounded by the evaporator and the heat exchanger.

20. The air conditioning system according to claim 18, wherein the detecting means is arranged in the air conditioning box in a sector of the air conditioning box bounded by the evaporator and the heat exchanger.