公开(公告)号：US20220357086A1

公开(公告)日：2022-11-10

申请号：US17869718

申请日：2022-07-20

Applicant: DENSO CORPORATION

Inventor： Masafumi NAKASHIMA ,  Atsushi INABA ,  Mikiharu KUWAHARA ,  Yuuichi KAMI ,  Hiroshi MIEDA

IPC: F25B49/02 ,  F25B40/06 ,  F25B43/02

Abstract: A refrigeration cycle device includes: a compressor having a compression mechanism forming a compression chamber for compressing refrigerant, and a cooled portion cooled by the refrigerant before being compressed by the compression mechanism; a radiator that radiates the refrigerant compressed by the compressor; a decompressor that decompresses the refrigerant radiated by the radiator; an evaporator that evaporates the refrigerant decompressed by the decompressor; an acquisition unit that acquires the state of the refrigerant after cooling the cooled portion and before flowing into the compression chamber; and a control unit that controls the superheat degree of the refrigerant flowing into the compression chamber based on the state of the refrigerant acquired by the acquisition unit.

公开(公告)号：US20220275982A1

公开(公告)日：2022-09-01

申请号：US17749258

申请日：2022-05-20

Applicant: DENSO CORPORATION

Inventor： Hiroshi MIEDA ,  Atsushi INABA ,  Yuuichi KAMI ,  Mikiharu KUWAHARA ,  Masafumi NAKASHIMA

IPC: F25B30/02 ,  F25B41/42

Abstract: A refrigeration cycle device includes a compressor, an upstream branch portion, a heating portion, a decompression portion, a bypass passage, a bypass flow adjustment portion, and a mixing portion. The mixing portion mixes a bypass side refrigerant flowing out from the bypass flow adjustment portion with a decompression-portion side refrigerant flowing out from the decompression portion, and causes the mixed refrigerant to flow to a suction port side of the compressor. The mixing portion mixes the bypass side refrigerant and the decompression-portion side refrigerant such that an enthalpy difference obtained by subtracting an enthalpy of an ideal homogeneously mixed refrigerant from an enthalpy of a suction side refrigerant actually sucked into the compressor is equal to or less than a predetermined reference value.