Heat pump technology in recent years, concern in the world of new energy technologies
, currently used in more air conditioning machine. Many pump applications in daily life. Pump is an increased potential energy of the device, according to different uses have water pump, air pump, oil pump and so on. Pump is mainly to improve or increase the water level pressure; pump is to increase the pressure; pump is mainly used for oil supply systems and hydraulic equipment. People use the pump is a simple double-injection pump. These pumps are directly exposed to the material for success.