US 12,292,044 B2
Rotary compressor and air conditioner
Hiromichi Ueno, Osaka (JP); and Tatsuya Katayama, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed on Aug. 21, 2024, as Appl. No. 18/811,274.
Application 18/811,274 is a continuation of application No. PCT/JP2023/005009, filed on Feb. 14, 2023.
Claims priority of application No. 2022-048468 (JP), filed on Mar. 24, 2022.
Prior Publication US 2024/0410349 A1, Dec. 12, 2024
Int. Cl. F25B 31/02 (2006.01); F04B 35/04 (2006.01); F04B 49/20 (2006.01)
CPC F04B 35/04 (2013.01) [F04B 49/20 (2013.01); F25B 31/026 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A rotary compressor comprising:
a cylindrical casing having a first end plate at one end in an axial direction and a second end plate at an other end in the axial direction;
an electric motor that is a variable-speed electric motor, the electric motor being disposed in the cylindrical casing in which a first space is sandwiched between the electric motor and the first end plate; and
a compression mechanism disposed in the cylindrical casing in which a second space is sandwiched between the compression mechanism and the electric motor, the compression mechanism being coupled with the electric motor,
the rotary compressor satisfies 0.8≤(A+B)*D2/(Vcc*Nmax)≤1.0, where
an axial length of the first space is A,
an axial length of the second space is B,
an inner diameter of the cylindrical casing is D,
a suction volume per rotation of the compression mechanism is Vcc, and
a maximum rotational speed of the compression mechanism is Nmax).