Carrier Corporation

Biao Shu

Kai Deng

Vishnu Mohan Sishtla

Michael A Stark

Haiping Ding

Haitao Zhang

Scott A Nieforth

Hsihua Li

Zhanbo Du

Danni Yuan

Xili Liu

A refrigeration system and a lubricating method thereof. The refrigeration system () includes: a compressor (), a condenser (), an evaporator (), and a lubrication circuit (), the lubrication circuit including a post-lubrication flow path () connected from the compressor into the condenser and the evaporator respectively; and a pre-lubrication flow path () connected from the condenser and the evaporator into the compressor respectively; wherein after flowing from the condenser via the pre-lubrication flow path to the compressor for lubrication, a part of refrigerant for lubrication can flow back to the evaporator via the post-lubrication flow path; or after flowing from the evaporator via the pre-lubrication flow path to the compressor for lubrication, the part of refrigerant for lubrication can flow back to the condenser via the post-lubrication flow path.

Refrigeration system and the lubrication method thereof

A diffuser for a centrifugal compressor and a centrifugal compressor having the same. The diffuser () comprises a drive component (), a transmission assembly (), an adjustment assembly (), a spool valve assembly () and a rear wall (); wherein the transmission assembly is used for transmitting power produced by the drive component to the adjustment assembly, the adjustment assembly is capable of circumferentially reciprocating with respect to the rear wall and driving the spool valve assembly to reciprocate axially; and wherein a rolling element () is provided between the adjustment assembly and the rear wall. Intervention of a mechanism for adjusting a flow passage width is better achieved by such an arrangement in combination with an existing configuration of the diffuser; and a low-friction fit between the adjustment assembly and the rear wall is achieved by the rolling element.

Diffuser for a centrifugal compressor and centrifugal compressor having the same

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Shanghai, China

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