Resources Contact Us Home
System and method for controlled expansion valve adjustment

Image Number 4 for United States Patent #8196421.

A method for controlling temperature pulldown of an enclosure with a refrigeration system having a compressor, a heat rejecting heat exchanger, an expansion valve, and an evaporator comprises circulating a refrigerant through the refrigeration system, sensing a parameter of the enclosure, determining a desired evaporator pressure based upon the parameter sensed, and adjusting the expansion valve as a function of the desired evaporator pressure.

  Recently Added Patents
Liquid crystal display device
Sporting goal practice screen
Jacket liner
Hybrid CMOS nanowire mesh device and PDSOI device
Thermochromic microparticles, dispersions thereof, and manufacturing method thereof, as well as light-modulating coatings, light-modulating films and light-modulating inks
Preserving user applied markings made to a hardcopy original document
Automated measurement of concentration and/or amount in a biological sample
  Randomly Featured Patents
Image processing device
Spatial registration correction for rotational gamma cameras
Riding lawn mower
Organic light emitting display apparatus
Apparatus for cooling melt spun filament bundles
Flow control valve
Method and circuit for synchronizing a digital data transmission system with a network-external clock
Real-time video transmission system and method
Piston for a hydraulic piston machine of the multiple displacement type