Closed circulation structure suitable for supercharger type

The utility model relates to the technical field of diesel engines, and discloses a closed circulation structure suitable for a supercharger type, which comprises a cylinder head cover, a respirator interface is formed at the upper end of the cylinder head cover, a respirator cushion block is fixedly connected onto the respirator interface, and a pressure regulating valve component is fixed at the upper end of the respirator cushion block; an air outlet pipe is formed on the side wall of the respirator cushion block and connected with an air inlet hose, and the other end of the air inlet hose is connected with a supercharger air inlet connecting pipe. On the premise that other structures are not changed, the position of the air outlet can be changed by additionally arranging the respirator cushion block, connection with an air inlet of a supercharger is facilitated, and the space structure of an engine is improved. 本实用新型涉及柴油机技术领域，公开了一种适用于增压机型的闭式循环结构，包括气缸盖罩，所述气缸盖罩的上端成型有呼吸器接口，呼吸器接口上固定连接有呼吸器垫块，呼吸器垫块的上端固定有调压阀部件；所