发明申请
- 专利标题: Screw Compressor
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申请号: US17288374申请日: 2019-09-04
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公开(公告)号: US20210381510A1公开(公告)日: 2021-12-09
- 发明人: Kotaro CHIBA , Masahiko TAKANO , Shigeyuki YORIKANE , Kenji MORITA
- 申请人: Hitachi Industrial Equipment Systems Co., Ltd.
- 申请人地址: JP Chiyoda-ku, Tokyo
- 专利权人: Hitachi Industrial Equipment Systems Co., Ltd.
- 当前专利权人: Hitachi Industrial Equipment Systems Co., Ltd.
- 当前专利权人地址: JP Chiyoda-ku, Tokyo
- 优先权: JP2018-201814 20181026
- 国际申请: PCT/JP2019/034776 WO 20190904
- 主分类号: F04C18/16
- IPC分类号: F04C18/16 ; F04C29/02
摘要:
A screw compressor includes plural screw rotors, plural suction-side bearings that each rotatably support the suction side of the plural screw rotors and plural discharge-side bearings that each rotatably support the discharge side of the plural screw rotors, and a casing that houses the plural screw rotors, the plural suction-side bearings, and the plural discharge-side bearings. Each screw rotor includes a lobe section with plural lobes and a suction-side shaft section and a discharge-side shaft section each disposed at both ends of the lobe section. The casing has a housing chamber that houses the lobe sections of the plural screw rotors and a lubrication path in which liquid that lubricates the plural suction-side bearings circulates. In the lubrication path, respective passages to lubricate each of the plural suction-side bearings are connected in series and a most downstream part is connected to the housing chamber.