Compressor

The utility model provides a compressor. The compressor comprises an open pump, a reversing valve, a membrane head and an oil tank. An oil inlet of the open pump is connected with the oil tank, and an oil outlet of the open pump is connected with the reversing valve through a first oil way. The reversing valve is connected with the oil tank through a second oil way and connected with the membrane head through a third oil way, and the reversing valve is configured to control the third oil way to alternately communicate with the first oil way and the second oil way. According to the open-type system, the open-type system comprising the open-type pump is arranged, the open-type pump directly supplies oil to the open-type pump through the oil tank, a corresponding oil supplementing system does not need to be arranged for the open-type pump, and compared with a closed-type system, the open-type system is simpler in structure and convenient to maintain and install. 本申请提供了一种压缩机，包括：开式泵、换向阀、膜头以及油箱；开式泵的进油口连接油箱，开式泵的出油口通