公开(公告)号：US10436196B2

公开(公告)日：2019-10-08

申请号：US15315551

申请日：2015-06-01

Applicant: Carrier Corporation

Inventor： Amit Vaidya

IPC: F04C18/16 ,  F04C23/00 ,  F04C18/08

Abstract: A compressor (22) comprises a housing (50) having a first port (26) and a second port (28). A male rotor (52) has a working portion (64) having a plurality of lobes (110) of a count (NM) and at least a first shaft portion (62) protruding beyond a first end (68) of the male rotor working portion and mounted for rotation about a first axis (500). A female rotor (54) has a working portion (66) having a plurality of lobes (112) of a count (NF) and mounted for rotation about a second axis (502) so as to be enmeshed with the male rotor working portion. An electric motor (56) is within the housing and has a stator (58) and a rotor (60) mounted to the first shaft portion. The compressor has no additional compressor rotors. The lobe count of the male rotor is less than the lobe count of the female rotor. A combined lobe count (NM+NF) is at least fifteen.

公开(公告)号：US20180156501A1

公开(公告)日：2018-06-07

申请号：US15737076

申请日：2016-08-11

Applicant: Carrier Corporation

Inventor： Amit Vaidya ,  David M. Rockwell ,  Peter J. Pileski

IPC: F25B9/14 ,  F25B1/10 ,  F25B3/00 ,  F25B39/04 ,  F25B45/00

Abstract: A compressor (22) has a male rotor (52), a female rotor (54), and a housing (50). The housing has a first bore (114) and a second bore (116) respectively accommodating portions of the male rotor and the female rotor. The housing has an inlet (26), an outlet (28), an economizer port (150) along at least one of the first bore and the second bore, and an external port (46) communicating with the economizer port. The housing has a chamber (152) between the economizer port and the external port having a volume of at least 0.8 liter.