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
Non-disruptive configuration of a virtualization controller in a data storage system
Predictive time entry for workforce management systems
Fuser member
Gas flow indicator
Electrical terminal
Method and system for updating device management application meter read logic
Secure Flash-based memory system with fast wipe feature
  Randomly Featured Patents
Expanded interval timer drive mechanism
Shoe sole
Appliance for the treatment of hair and scalp
Insulating enclosure for lithium batteries
Discharge lamp operating circuit
Self-reply envelope
Antenna and frequency diversity receiving apparatus
Method of retrieving video picture and apparatus therefor
Laminate cover and method for sealing a roofing membrane
Recombinant parainfluenza virus expression system and vaccines