专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4915554A Hermetic rotary compressor with balancing weights 失效
标题翻译：具有平衡重的密封旋转压缩机
公开(公告)号：US4915554A
公开(公告)日：1990-04-10
申请号：US258462
申请日：1988-10-17
申请人： Yukio Serizawa , Kazuo Ikeda , Hiroaki Hata , Shin Ishihara , Motohiro Shiga
发明人： Yukio Serizawa , Kazuo Ikeda , Hiroaki Hata , Shin Ishihara , Motohiro Shiga
IPC分类号： F04C23/00 , F04C29/00
CPC分类号： F04C23/008 , F04C29/0021 , F04C2240/603
摘要： A hermetic rotary compressor has a motor unit composed of a stator and a rotor which are arranged in an upper portion of a hermetic housing, an oil-lubricated compressor unit arranged in a lower portion of the hermetic housing, a crank shaft which interconnects said motor unit and said compressor unit, a discharging silencer which is formed by a lower bearing of the compressor unit positioned around the lower end of the crank shaft and a cover of the lower bearing. The hermetic rotary compressor further has a lower balancing weight mounted around a lower shaft end portion of the crank shaft which extends to a position below the discharging silencer and a weight cup surrounding the lower balancing weight. In this hermetic rotary compressor, the lower balancing weight is not disposed within the discharging silencer. Hence, even is the gas-liquid mixture of refrigerant is discharged from the discharging valve into the silencer chamber in the start-up or during liquid-back operation of the compressor, there is no risk that the lower balancing weight undesirably stirs such a fluid.
摘要翻译：密闭式旋转压缩机具有由定子和转子构成的电动机单元，该电动机单元设置在密封壳体的上部，设置在密封壳体的下部的油润滑压缩机单元，将所述电动机单元和所述压缩机单元，排出消音器，其由围绕曲轴的下端定位的压缩机单元的下轴承和下轴承的盖形成。密封旋转式压缩机还具有安装在曲轴的下轴端部周围的较低的平衡重，其延伸到排放消声器下方的位置和围绕下平衡重的重量杯。在这种密封旋转压缩机中，较低的平衡重不设置在排放消音器内。因此，即使制冷剂的气液混合物在压缩机的启动或回液运转中从排出阀排入消音室，也不存在较低的平衡重不利地搅动这种流体的风险。

2. 发明授权

US4944663A Rotary compressor having oxidizing and nitriding surface treatment 失效
标题翻译：具有氧化和氮化表面处理的旋转压缩机
公开(公告)号：US4944663A
公开(公告)日：1990-07-31
申请号：US340289
申请日：1989-04-19
申请人： Tadashi Iizuka , Kazushi Fukuda , Shin Ishihara , Yasuo Kamitsuma , Yusaku Nakagawa
发明人： Tadashi Iizuka , Kazushi Fukuda , Shin Ishihara , Yasuo Kamitsuma , Yusaku Nakagawa
IPC分类号： C23C8/34 , F01C21/08 , F04B39/00 , F04C29/00 , F04C29/02
CPC分类号： F01C21/0809 , F04C2230/92 , F05B2230/90 , F05B2280/20 , F05C2201/00 , F05C2201/0442 , F05C2201/0457 , F05C2253/12
摘要： A sliding member of an iron-based non-porous material, such as vane, of a rotary compressor has a sliding surface processed by a surface treatment in which the surface is subjected to oxidizing and nitriding to form an oxidized and nitrided layer thereon. The surface is then subjected to a steam-treatment in which water is caused to react with components of the oxidized and nitrided layer to form a layer of oxidized iron of a porous network structure disposed outwardly of the oxidized and nitrided layer. The oxidized iron layer is composed mainly of tri-iron tetroxide and softer than the oxidized and nitrided layer.
摘要翻译：旋转式压缩机的铁质无孔材料如叶片的滑动构件具有通过表面经受氧化和氮化处理以在其上形成氧化和渗氮层的表面处理的滑动表面。然后对表面进行蒸汽处理，其中使水与氧化和氮化层的组分反应以形成设置在氧化和氮化层外侧的多孔网状结构的氧化铁层。氧化铁层主要由三氧化三铁组成，比氧化和氮化层柔软。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式