螺杆式双螺杆与空压机是一种空气压缩机，有单双螺杆两种。双螺杆空压机的发明比单螺杆空压机晚十几年，设计上双螺杆式空压机更趋合理、先进。
Screw type twin-screw and air compressor is an air compressor, there are two kinds of single twin-screw. The invention of twin-screw air compressor is more than ten years later than that of single screw air compressor. The design of twin-screw air compressor is more reasonable and advanced.
双螺杆空压机克服了单螺杆空压机不平衡、轴承易损的缺点，具有寿命长，噪音低，更加节能等优点。八十年代技术成熟后，其应用范围在日渐扩大。
The twin-screw air compressor overcomes the disadvantages of unbalanced single screw air compressor and vulnerable bearing, and has the advantages of long service life, low noise and more energy saving. After the technology matured in 1980s, its application scope is expanding day by day.
单螺杆空压机又称蜗杆空压机，单螺杆空压机的啮合副由一个6头螺杆和2个11齿的星轮构成。蜗杆同时与两个星轮啮合即使蜗杆受力平衡，又使排量增加一倍，空压机的体积小，每分钟只有9立方米（9m3/min）蜗杆空压机的重量仅为活塞式的1/6。
Single screw air compressor is also called worm air compressor. The meshing pair of single screw air compressor is composed of a 6-head screw and 2 11 tooth star wheels. The worm is meshed with two starwheels at the same time, even if the worm is balanced, the displacement will be doubled. The volume of the air compressor is small, only 9 cubic meters (9 m3 / min) per minute. The weight of the worm air compressor is only 1 / 6 of the piston type.