Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Air conditioner for vehicles










Image Number 2 for United States Patent #5769316.

An air conditioner for a vehicle has a heat pump type refrigerant circuit capable of operating at least in a heating mode. The air conditioner comprises a motor fan for supplying air heated by a heat exchanger to the interior of the vehicle during operation of the heating mode, a sensor for detecting the temperature of the air at a position downstream of the heat exchanger and a control unit for controlling the volume of the air supplied by the motor fan to a predetermined minimum volume by controlling the drive of the motor fan when the detected air temperature is lower than a predetermined temperature. Even in a condition where a sufficiently large heat radiation from the heat exchanger cannot be expected, a large volume of cold air that has been insufficiently heated can be prevented from being discharged into the interior of the vehicle. Because the motor fan is driven at a condition of minimum air volume even when the detected temperature is lower than the predetermined temperature, a rapid variation of air volume caused at the time of changing a fan-stopping condition to a fan-driving condition can be avoided and an abnormal increase in the discharge pressure of the heat pump compressor can be prevented.








 
 
  Recently Added Patents
Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding
Method and system for tracking mobile electronic devices while conserving cellular network resources
Spatula
Security access protection for user data stored in a cloud computing facility
Selecting content for storage in a multi-device cache
Method of forming an isolation structure
Image reconstruction iterative method
  Randomly Featured Patents
System and method for testing signal interconnections using built-in self test
Integrated toner transport/toner charging device
Architecture for an optical satellite communication network
Container closure with seal
Tank screening device for use in automated cleaning of investment casting slurry tanks
Method for cleaning semiconductor wafers containing dielectric films
Battery pack for cordless device
Optical head
Microfluidic array devices and methods of manufacture and uses thereof
Display device controlling luminance