发明名称 |
COMPRESSOR |
摘要 |
In order to adapt a balance piston unit of a compressor to a high speed, and to extend a service life of the compressor, a screw compressor according to the present invention includes a screw rotor including a rotor shaft, a radial bearing, a thrust plate, a balance mechanism, which is a slide bearing, a lubrication oil supply flow passage for supplying a lubrication oil, and a working fluid supply flow passage for supplying a working fluid for pressing the balance mechanism toward the thrust plate so that a reverse thrust load acts on the thrust plate. |
申请公布号 |
US2015118092(A1) |
申请公布日期 |
2015.04.30 |
申请号 |
US201414485953 |
申请日期 |
2014.09.15 |
申请人 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) |
发明人 |
TAKAKI Shugo;KURIOKA Yoshinori;TAJIMA Masahiro;GOTOU Hisanori;KAWAGUCHI Norio |
分类号 |
F04C29/00;F04C29/02;F01C21/02;F04C18/08 |
主分类号 |
F04C29/00 |
代理机构 |
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代理人 |
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主权项 |
1. A compressor comprising:
a screw rotor that includes a rotor main unit, which is a screw, and rotor shafts which extend from both sides of the rotor main unit; radial bearings that are located on both sides of the rotor main unit, and receive a radial load of the rotor shaft; a thrust bearing that is located at one shaft portion of the rotor shaft; a thrust plate that is fixed to an end of the other shaft portion of the rotor shaft; a balance mechanism that reduces a thrust load acting on the thrust bearing,wherein the balance mechanism includes:
a slide bearing that presses the thrust plate via a lubricant between the slide bearing and the thrust plate; and a balance piston unit that presses the slide bearing toward the thrust plate by a pressure of a working fluid. |
地址 |
Kobe-shi JP |