A reciprocating compressor using labyrinth seal ( labyrinth piston compressor , lpc ) can compress and transport gases in an oil - free way . it has many advantages , such as non - lubricated maintenance , no friction loss , no hot spots , minimal wear and tear , and so on 采用迷宮密封的往復(fù)式壓縮機可以完成潔凈氣體的壓縮和輸送,具有壓縮過程無潤滑、無接觸摩擦、氣體無污染、安全可靠等優(yōu)點。