Title:
A turbo compressor and a turbo refrigerator
Document Type and Number:
Japanese Patent JP6056270
Kind Code:
B2
Abstract:
A turbo compressor that has a compression stage provided with an impeller that rotates; a housing provided with a gear unit accommodation space that accommodates lubricating oil and accommodates a large diameter gear that transmits rotating force to the impeller, an IGV accommodation space in which the ambient pressure is lower than the gear unit accommodation space, and a gap that brings the IGV accommodation space and the air intake side of a first compression stage into communication; a pressure equalizing tube that causes a gas to circulate from the gear unit accommodation space toward the IGV accommodation space; and a second oil separating device that separates, in the IGV accommodation space, the lubricating oil contained in the gas.
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Inventors:
Kentaro Oda
Seiichiro Yoshinaga
Kurihara Kazuaki
Nobuyoshi Sakuma
Seiichiro Yoshinaga
Kurihara Kazuaki
Nobuyoshi Sakuma
Application Number:
JP2012187742A
Publication Date:
January 11, 2017
Filing Date:
August 28, 2012
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
F04D29/42; F04D29/063; F04D29/70
Domestic Patent References:
| JP55067367U | ||||
| JP55066700A | ||||
| JP3172599A | ||||
| JP2009185710A |
Attorney, Agent or Firm:
Yoshifumi Saeki
Kazunori Onami
Junichi Kobayashi
Kazunori Onami
Junichi Kobayashi