JET-TYPE HEAT PUMP Russian patent published in 2017 - IPC F04F5/10 

FIELD: engines and pumps.

SUBSTANCE: heat pump is provided with a wet part which comprises a nozzle for active medium, a mixing chamber with nozzles for feed water supply, a supersonic diffuser consisting of a confusor, a neck and an expanding section, a and subsonic diffuser. The heat pump is provided with a vortex chamber, which cavity is made in the form of an annular slit channel with a tangential inlet. The vortex chamber is installed coaxially with the supersonic diffuser neck. The annular slit channel is hydraulically connected through the tangential inlet with the outlet of the subsonic diffuser, and its outlet is communicated with the neck outlet.

EFFECT: reduction of the expanding section walls wears due to the straight shock wave impact, reduction of noise level of straight shock wave impact on the wall.

2 cl, 3 dwg