FLUID CIRCULATING DEVICE FOR BOTH VACUUM PUMP AND AIR COMPRESSOR

摘要

PURPOSE: An air compressor is provided to improve the use efficiency of the device, to be easily moved and to be safely used by performing the complex functions as both a vacuum pump and an air compressor. CONSTITUTION: The air compressor is used by the steps of:positioning a first three dimensional valve(107) at a passing position; making a second three dimensional valve(108) as a suction valve; opening a first stop valve(109); shutting a second stop valve(201); and driving an electric motor(204).; Therefore, a fluid circulating pump(100) is operated.; Herein, the fluid circulating pump sucks the air in atmosphere and vents the air by high pressure through an air filter and a suction hole(203). The lubricating oil contained in the vented high pressure air is recollected in an oil separator(103), and only the high pressure air is stored in a compressing tank(101) after passing through the first three dimensional valve and the first stop valve. The high pressure air stored in the compressing tank is used when compressed air is needed.