Claims
- 1. In an air conditioning system for controlling the temperature in a passenger compartment of an automobile, said air conditioning system including a duct which defines an air passage, blower means disposed in said air passage for blowing air at various speeds through said air passage, an outside air intake formed in said duct for admitting air from outside said passenger compartment to said duct, first and second passenger compartment air intakes formed in said duct for admitting air from said passenger compartment to said duct, first damper means for selectively opening and closing said outside air intake and said first passenger compartment air intake in response to temperature control signals, and second damper means for opening and closing said second passenger compartment air intake in response to the speed of the blown air in said air passage, an improvement comprising:
- damper control means for selectively controlling said second damper means independently of the speed of the blown air in said air passage, said damper control means including an electromagnet positioned adjacent said second passenger compartment air intake and wherein at least a portion of said second damper means comprises a magnetic material such that said second damper means is selectively attracted to said electromagnet in response to temperature control signals.
- 2. A method of controlling the intake of air in an air conditioning system for controlling the temperature in a passenger compartment of an automobile, said air conditioning system including a duct which defines an air passage, blower means disposed in said air passage for blowing air at various speeds through said air passage, an outside air intake formed in said duct for admitting air from outside said passenger compartment to said duct, first and second passenger compartment air intakes formed in said duct for admitting air from said passenger compartment to said duct, first damper means for selectively opening and closing said outside air intake and said first passenger compartment air intake in response to temperature control signals, and second damper means for opening and closing said second passenger compartment air intake in response to the speed of the blown air in said air passage, said method including the steps of:
- selectively controlling said first damper means in response to the temperature control signals; and
- selectively controlling said second damper means independently of the speed of the blown air in said air passage.
- 3. An air intake assembly for an air conditioning system which controls the temperature in a passenger compartment of an automobile, said air intake assembly comprising:
- a duct which defines an air passage;
- blower means disposed in said air passage for blowing air at various speeds through said air passage;
- an outside air intake formed in said duct for admitting air from outside said passenger compartment to said duct;
- first and second passenger compartment air intakes formed in said duct for admitting air from said passenger compartment to said duct;
- first damper means for selectively opening and closing said outside air intake and said first passenger compartment air intake in response to temperature control signals,
- second damper means for opening and closing said second passenger compartment air intake in response to the speed of the blown air in said air passage; and
- damper control means for selectively controlling said second damper means independently of the speed of the blown air in said air passage.
- 4. The air intake assembly according to claim 3 wherein said damper control means comprises an electromagnet positioned adjacent said second passenger compartment air intake and wherein at least a portion of said second damper means comprises a magnetic material.
- 5. An air conditioning system for controlling the temperature in a passenger compartment of an automobile, said air conditioning system comprising:
- a duct which defines an air passage;
- blower means disposed in said air passage for blowing air at various speeds through said air passage;
- an outside air intake formed in said duct for admitting air from outside said passenger compartment to said duct;
- first and second passenger compartment air intakes formed in said duct for admitting air from said passenger compartment to said duct;
- first damper means for selectively opening and closing said outside air intake and said first passenger compartment air intake in response to temperature control signals;
- second damper means for opening and closing said second passenger compartment air intake, at least a portion of said second damper means comprising a magnetic material; and
- damper control means for selectively controlling said second damper means, said damper control means comprising an electromagnet positioned adjacent said second passenger compartment air intake such that said second damper means is selectively attracted to said electromagnet in response to temperature control signals.
- 6. The air conditioning system according to claim 5 further comprising: evaporator means for cooling the blown air in said air passage.
- 7. The air conditioning system according to claim 5 further comprising: heater means for heating the blown air in said air passage.
- 8. An air intake assembly for an air conditioning system which controls the temperature in a passenger compartment of an automobile, said air intake assembly comprising;
- a duct which defines an air passage;
- blower means disposed in said air passage for blowing air at various speeds through said air passage;
- an outside air intake formed in said duct for admitting air from outside and passenger compartment to said duct;
- first and second passenger compartment air intakes formed in said duct for admitting air from said passenger compartment to said duct;
- first damper means for selectively opening and closing said outside air intake and said first passenger compartment air intake in response to temperature control signals;
- second damper means for opening and closing said second passenger compartment air intake; and
- damper control means responsive to control signals for controlling said second damper means, said damper control means including means for selectively controlling said second damper to close said second passenger compartment air intake independently of a state of said blower means and said first damper means.
- 9. The air intake assembly according to claim 8 wherein said damper control means comprises an electromagnet positioned adjacent to said second passenger compartment air intake and wherein at least a portion of said second damper means comprises a magnetic material.
Priority Claims (1)
Number |
Date |
Country |
Kind |
63-6656[U] |
Jan 1988 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 299,351, filed Jan. 23, 1989, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4223720 |
d'Orsay et al. |
Sep 1980 |
|
4614152 |
Fukasaku et al. |
Sep 1986 |
|
4779672 |
Seikou et al. |
Oct 1988 |
|
Foreign Referenced Citations (5)
Number |
Date |
Country |
3020683 |
Apr 1980 |
DEX |
2533865 |
Oct 1983 |
FRX |
56-34514 |
Apr 1981 |
JPX |
1119722 |
Aug 1965 |
GBX |
2128322 |
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GBX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
299351 |
Jan 1989 |
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