Single-Acting Fixed Displacement Compressor: A single-acting fixed displacement compressor is a simple type of compressor suitable for low-pressure and low-displacement applications. It works by using a piston to compress gas, but with only a one-way valve, gas can only enter and exit from one side. The advantage of this compressor is its simple structure and ability to achieve a high compression ratio, but its disadvantage is lower efficiency.
Double-Acting Fixed Displacement Compressor: A double-acting fixed displacement compressor is a commonly used type of compressor, suitable for low to medium pressure and displacement applications. It uses a two-way valve, allowing gas to enter and exit from both sides, achieving higher efficiency and a larger compression ratio.
Scroll Fixed Displacement Compressor: A scroll fixed displacement compressor is a high-efficiency type of compressor suitable for high-pressure and high-displacement applications. It works by using two rotating spirals to compress gas. This type of compressor can achieve a high compression ratio and stable operation, but it is more expensive.
Screw Fixed Displacement Compressor: A screw fixed displacement compressor is a high-efficiency type of compressor suitable for high-flow and high-pressure applications. It compresses gas using two rotating screws, and compared to scroll compressors, it can handle higher displacement and pressure.