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
Rose plant named `ESM R057`
Digital broadcasting transmission and reception system, and a signal processing method using turbo processing and turbo decoding
Control of an electric machine
Process for preparing synthetic intermediates of peripherally-selective inhibitors of dopamine-.beta.-hydroxylase involving catalytic asymmetric hydrogenation
Vertical gate LDMOS device
Pyridylphenyl compounds for inflammation and immune-related uses
Compositions and methods of vascular injury repair
  Randomly Featured Patents
Compressor integral with stirling engine
Microwave oscillator using a ring resonator and operable as a remote temperature sensor
Clip
Hierarchical key management
Back-up lighting system
X-ray diffraction method for generating mineralogy record of whole core
Flash-erase-type nonvolatile semiconductor storage device
Universal adapter
Bark control device housing
Internal combustion engine