SEMI-OIL INJECTED OILLESS AIR COMPRESSOR

摘要

An a kind of oilless air compressor with oil supply type is arranged to allow two step pistons by allowing compressing cylinder to be reciprocated to a compressing cylinder and an oil-free cylinder and product fresh compressed air and the oil-free cylinder that is integrally exchanged with low cost simultaneously. An a kind of oilless air compressor with oil supply type includes a compression pump (10), an oil-free cylinder (20), two step pistons (30) and discharge port. Compression pump is equipped with the compressing cylinder (12) on a top of a cylinder case (13). Oil-free cylinder has the side for a upper end for being mounted on compression pump, is coupled to another party of a cylinder head. Two step pistons produce oil-free compressed air in a discharge chambe of oil-free cylinder toward redoubling according to the operation of a connecting rod (16) in compressing cylinder and oil-free cylinder internal installation. The side of compressing cylinder is formed in the discharge port with a discharge passage of internal connection.