Scroll type compressor
    14.
    发明授权
    Scroll type compressor 有权
    涡旋式压缩机

    公开(公告)号:US6053715A

    公开(公告)日:2000-04-25

    申请号:US164533

    申请日:1998-09-30

    IPC分类号: F04C18/02 F04C29/00 F01C1/02

    CPC分类号: F04C29/0014 F04C18/0215

    摘要: An orbiting scroll is engaged to and moved orbitally in relation to a fixed scroll at variable speeds. An offset surface is provided in at least one of the wraps of the fixed scroll and/or the orbiting scroll, by which a space S is created in one of the compression chambers formed between the fixed scroll and the orbiting scroll, which is thereby unsealed and opened to the inlet port side. The offset surface has a length from a position in the spiral length which satisfies the required compression ratio of one of the compression chambers in a low speed operation to the end of the spiral. An injection port is positioned such as to open to an unsealed area of this compression chamber, and gas injection shutoff and resumption is controlled through this injection port as appropriate to the situation.

    摘要翻译: 相对于可变速度的固定涡旋盘,绕动涡旋件接合并轨道运动。 在固定涡旋件和/或绕动涡旋件的至少一个涡卷上设置有偏移面,在形成在固定涡旋盘和绕动涡旋件之间的压缩室之间形成有空间S,由此被开封 并通向入口侧。 偏移面具有从螺旋长度的位置的长度,该长度满足在低速操作中的一个压缩室与螺旋的末端所需的压缩比。 喷射口被定位成打开到该压缩室的未密封区域,并且根据情况通过该喷射口来控制气体注入关闭和恢复。

    Compressor for a refrigeration machine having a thrust bearing
    15.
    发明授权
    Compressor for a refrigeration machine having a thrust bearing 失效
    具有推力轴承的制冷机用压缩机

    公开(公告)号:US5695326A

    公开(公告)日:1997-12-09

    申请号:US655883

    申请日:1996-05-31

    摘要: A compressor for a refrigeration machine is provided without any problems of reduction in the life of a thrust bearing structure even when a substitutive coolant not containing any chlorine is used. In the compressor for a refrigeration machine having a thrust bearing made of steel for supporting a thrust load applied to a drive shaft, a thrust bearing surface made of a material different from that of the drive shaft is formed in the thrust bearing by means of a surface treatment. Alternatively a washer defining the thrust bearing surface may be surface treated to provide a material different from that of the drive shaft. The washer may also be made of a material different from that of the drive shaft. According to the the present invention, even when a boundary lubricating state is produced between the drive shaft and the thrust bearing surface sticking is prevented. As a result, the life of the thrust bearing structure of the drive shaft can be made longer and a problem of reduction in the life of the thrust bearing structure can be avoided even when a substitutive coolant not containing any chlorine is utilized.

    摘要翻译: 提供一种用于制冷机的压缩机,即使使用不含氯的替代冷却剂,也不会产生推力轴承结构的寿命降低的问题。 在具有用于支撑施加到驱动轴上的推力负载的由钢构成的推力轴承的制冷机的压缩机中,由推力轴承形成的与驱动轴不同的推力轴承表面形成在推力轴承中 表面处理。 或者,限定止推轴承表面的垫圈可以被表面处理以提供与驱动轴不同的材料。 垫圈也可以由与驱动轴不同的材料制成。 根据本发明,即使在驱动轴与推力轴承面之间产生边界润滑状态,也能够防止粘着。 结果,即使使用不含氯的替代冷却剂,驱动轴的推力轴承结构的寿命也可以更长,并且即使使用不含氯的替代冷却剂,也能够避免推力轴承结构的使用寿命的问题。