| 摘要 |
An oilless air compressor with a semi-oil supply type is provided to allow a two-step piston to be simultaneously reciprocated to a compressing cylinder and an oilless cylinder, and to produce fresh compressed air with low costs by allowing the compressing cylinder and the oilless cylinder to be integrally communicated. An oilless air compressor with a semi-oil supply type comprises a compressing pump(10), an oilless cylinder(20), a two-step piston(30) and a discharge port. The compressing pump is equipped with a compressing cylinder(12) in an upper part of a cylinder case(13). The oilless cylinder has one side installed in an upper end of the compressing pump, and the other side coupled to a cylinder head. The two-step piston is installed inside the compressing cylinder and the oilless cylinder, reciprocates according to operation of a connecting rod(16) and produces oilless compressed air in a compressing chamber of the oilless cylinder. The discharge port having a discharge passage communicated with the inside is formed in one side of the compressing cylinder.
|
