EJECTOR Russian patent published in 2020 - IPC F04F5/48 

FIELD: machine building.

SUBSTANCE: ejector relates to jet equipment, can be used in creation of pneumatic engines. Ejector contains needle valve, receiving chamber with inlet branch pipe of passive medium, mixing chamber, diffuser, outlet branch pipe. Needle valve includes housing with flange, needle, nipple, handle connected with needle. Needle is installed in the body. In the structural space of the body, a thread is cut, along which the needle moves, thus regulating the flow of the active fluid medium. In the lower plane of the housing there is a nipple for supply of active fluid into the needle valve. Nipple is conjugated with the case by means of a nut. To prevent leakage of active medium, the needle valve has a cuff, a washer, a bushing and a coupling nut. By means of the flange the needle-type valve is connected to the receiving chamber. O-ring is used for tight connection of intake chamber and needle valve.

EFFECT: technical result of this invention is: efficiency of using working medium, possibility of smooth and dosed control of flow of active fluid medium, ability of ejector to work with high-pressure fluids.

1 cl, 3 dwg