Pressure control arrangements for an air compression system

摘要

This disclosure relates to a pressure control arrangement for an air compressor. The pressure control arrangement includes an auxiliary pressure chamber which is vented to the atmosphere by the auxiliary pressure chamber is connected to the compression chamber of the air compressor by a spring biased piston controlled valve which is normally closed. When the air pressure exceeds a predetermined value, the piston controlled valve is opened by the air pressure to vent the compression chamber to the atmosphere.