SCREW COMPRESSOR (OPTIONS) Russian patent published in 2019 - IPC F04C18/16 F04C28/12 

FIELD: machine building.

SUBSTANCE: group of inventions relates to a screw compressor. Said compressor includes a housing, two screw rotors (26, 28), at least one control valve (52, 54), which is movable in the direction of movement parallel to the axes of rotor (26, 28), position-detector device (152) for at least one control valve that has position display element (156, 158) associated with at least one control valve. At least one element (156, 158) interacts with detector element (154), which extends parallel to the direction of movement of at least one control valve (52, 54) and along which element (156, 158) is movable. Element (154) is interfaced with evaluation device (192), which records the corresponding position of element (156, 158) along element (154). Element (154) extends parallel to displacement direction (72) of at least one control valve (52, 54). Element (156, 158) is movable along element (154). Element (154) is mated to device (192), which registers the corresponding position of element (156, 158) along element (154). Element (154) is located in detector channel (216) passing inside the housing parallel to displacement direction (72) and closed by a cover.

EFFECT: group of inventions is aimed at ensuring accurate registration of the position of the control valves.

28 cl, 18 dwg