ELEMENT FOR INJECTING LUBRICATING FLUID INTO COMPRESSOR OR EXPANSION DEVICE AND METHOD OF CONTROLLING INJECTION Russian patent published in 2020 - IPC F04C18/16 F04C28/06 F04C29/02 

FIELD: machine building.

SUBSTANCE: group of inventions relates to an element of injection of lubricating liquid into a compressor or an expansion device and to a method of controlling injection. Element (1) comprises housing (2), which defines rotary chamber (3). In chamber (3), at least one rotor (6) is fixed with possibility of rotation, by means of which element (1) is additionally provided by connection (10) with injection contour for injection of lubricating liquid into element (1). Connection (10) is performed by injection point (11a) in housing (2), which opens into first compression chamber or expansion chamber (13). Connection (10) is additionally carried out by means of additional point (11b) of injection in housing (2), which opens into second or subsequent chamber (14, 17) of compression or expansion. Chamber (13) is a gas chamber closed immediately after gas inlet (4) for rotor chamber (3). Second or subsequent chamber (14, 17) is formed after at least one rotor (6) is turned by one pitch or turn from hole (4).

EFFECT: group of inventions is aimed at providing sufficient sealing and lubrication, as well as high efficiency of cooling.

9 cl, 2 dwg