TODAY’S PATENT- VEHICLE AIR CONDITIONING SYSTEM

Today’s patent was invented by Ronald S. Eisenhour and Charles SPRUNGER on July 12, 2011 bearing patent no. US7975496B2.

The present invention is a vehicle air conditioning system that controls compressor cycling in response to humidity conditions. It includes a compressor, a condenser, an evaporator, a humidity sensor, and a controller. This device maintains the temperature of the passenger compartment by operating a compressor to keep the evaporator at a temperature just above the freezing point of water.

The air passing through the evaporator is too cooled to send directly into the passenger compartment. So, a portion of the cooled air is re-heated bypassing the portion of the cooled air through the heater core. Then the cold air and the re-heated air are mixed before entering the passenger compartment to deliver cooled air that is not frigid. The aim behind this invention is to reduce the thermal loading of an air conditioning system and the work of a vehicle engine necessary to operate an air conditioning system compressor.