02-01-2020 дата публикации
Номер: US20200003214A1
Принадлежит:
A compressor includes a housing defining a working chamber. The housing further includes a bore and an endplate disposed toward a discharge end. The compressor further includes a rotor having helical threads, the rotor being configured to be housed in the bore, a rotor clearance, a controllable bearing supporting the rotor, and a controller configured to control the controllable bearing such that the controllable bearing moves the rotor in a manner to reduce and/or enlarge the rotor clearance. 110-. (canceled)11. An HVAC system , comprising ,a fluidically connected fluid circuit including,a condenser,an expansion device disposed downstream of the condenser,an evaporator disposed downstream of the expansion device, a housing,', 'two bores within the housing,', 'an endplate disposed toward a high pressure end,', 'two rotors having intermeshing helical threads, the rotors being configured to be housed in the bores,', 'a rotor-to-rotor clearance defined between the two rotors,', 'a rotor-to-bore clearance defined between one of the rotors and an interior surface of the bores,', 'a rotor to endplate clearance defined between one of the rotors and the endplate,', 'a controllable bearing supporting one of the two rotors, and', 'a controller configured to control the controllable bearing such that the controllable bearing moves the one of the two rotors in a manner to reduce or enlarge the rotor-to-rotor, rotor-to-bore, or rotor to endplate clearances., 'a compressor disposed downstream of the evaporator and upstream of the condenser, the compressor including,'}12. The HVAC system according to claim 11 , wherein the housing further includes claim 11 ,an intake port disposed toward an opposite end from the discharge end,a discharge port disposed toward the discharge end, anda compression chamber defined by the helical threads of the two rotors and an interior surface of the housing, the compression chamber being configured to move from the intake port to the discharge port ...
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