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
Electronic weighing device and server system
Method and system for derived layer checking for semiconductor device design
Haptic feedback device
Manipulating parameterized cell devices in a custom layout design
Systems and methods for monitoring data and bandwidth usage
Multiple upstream channel descriptor messages pointing to single upstream channel ID for more efficient operation of a DOCSIS system
Apparatus and method for controlling services and operations in converged communications networks
  Randomly Featured Patents
Device and method for antenna matching in portable wireless terminal with built-in antenna
Micro-actuator mounting structure capable of maintaining a substantially constant gap between a top support of a micro-actuator and a suspension during use
Vacuum cleaner having edge cleaning features
Sheet feeder
Vehicle control apparatus
Refuse collection apparatus
Electric hair clipper utility board
Communications arrangement
Battery separator
Automated packaging