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 of motion vector prediction with extended motion vector predictor
Anti-reductive high-frequency ceramic dielectric material sintered at low temperature and matched with copper internal electrode
Virtual physician acute myocardial infarction detection system and method
Method and apparatus for encoding and decoding video based on first sub-pixel unit and second sub-pixel unit
Apparatus and method for scrolling a screen of a portable terminal having a touch screen
Hydrothermal synthesis of nanocubes of sillenite type compounds for photovoltaic applications and solar energy conversion of carbon dioxide to fuels
Voltage regulator structure that is operationally stable for both low and high capacitive loads
  Randomly Featured Patents
Polypeptides having amylase activity and methods of making and using them
Estimation method to evaluate a system reliability of a cloud computing network
Magnetic tape drive
Methods and apparatus for applying product
Multi-purpose lighter
Sheet-size determining apparatus with selection inducing means
Automatic parts feeder
Electrical contact mechanism for ultrasonic transducers on fasteners
Carbon dioxide capture method, with optimized acid wash section
Methods and apparatus for improving locality of reference through memory management