Scroll compressor with heat shield
    1.
    发明授权
    Scroll compressor with heat shield 有权
    涡旋压缩机带隔热罩

    公开(公告)号:US06287089B1

    公开(公告)日:2001-09-11

    申请号:US09451306

    申请日:1999-11-29

    IPC分类号: F04B4900

    摘要: A scroll compressor includes a non-orbiting scroll wherein the base is sealed to the housing. That is, the non-orbiting scroll provides the function of the scroll member, and also the function typically provided by a separator. A heat shield is positioned between the discharge pressure chamber and the base of the non-orbiting scroll. Leakage paths are provided to allow refrigerant to communicate between the discharge pressure chamber and spaces between the heat shield and the non-orbiting scroll.

    摘要翻译: 涡旋式压缩机包括非绕动涡旋件,其中底座被密封到壳体。 也就是说,非轨道运行的涡卷提供涡旋构件的功能,以及通常由分离器提供的功能。 隔热板位于排气压力室与非轨道涡旋盘的底座之间。 提供泄漏路径以允许制冷剂在排出压力室与隔热板与非绕动涡旋件之间的空间之间连通。

    Bearing assembly for sealed compressor
    2.
    发明授权
    Bearing assembly for sealed compressor 有权
    密封式压缩机用轴承组件

    公开(公告)号:US06247909B1

    公开(公告)日:2001-06-19

    申请号:US09376915

    申请日:1999-08-18

    IPC分类号: F04C1804

    摘要: A scroll compressor is provided within a sealed housing. Although the invention is shown with regard to a scroll compressor, it should be understood that aspects of the invention have benefit to any type sealed compressor. A lower bearing is attached directly to a housing end cap. The lower bearing is easily and accurately attached to the end cap, and reduces the complexity and cost of assembly of a sealed compressor. In particular, the end cap is provided with upset portions spaced circumferentially by gaps. The bearing is secured to the upset portions by welding. Oil can flow through the gaps and into a space beneath the bearing such that it can reach oil passages in the shaft.

    摘要翻译: 涡旋压缩机设置在密封壳体内。 尽管关于涡旋压缩机示出了本发明,但是应当理解,本发明的各方面都有益于任何类型的密封式压缩机。 下轴承直接连接到外壳端盖。 下轴承易于精确地附接到端盖上,并且降低了密封压缩机的组装的复杂性和成本。 特别地,端盖设置有通过间隙周向隔开的镦锻部分。 轴承通过焊接固定到镦锻部分。 油可以流过间隙并进入轴承下方的空间,使其能够到达轴中的油道。

    Check valve mounted adjacent scroll compressor outlet
    6.
    发明授权
    Check valve mounted adjacent scroll compressor outlet 有权
    止回阀安装在相邻的涡旋压缩机出口

    公开(公告)号:US06227830B1

    公开(公告)日:2001-05-08

    申请号:US09366808

    申请日:1999-08-04

    IPC分类号: F04C1804

    摘要: Several discharge check valve arrangements for scroll compressors move the check valve closer to the discharge port and the compression chambers. This reduces the amount of discharge pressure backflow, and thus reduces the amount of reverse rotation at shutdown. In one type of check valve arrangement, a plug is mounted within a check valve chamber to provide a stop for the check valve. The plug allows the check valve to seat against its valve seat while the compressor is operating to allow gas to flow around the check valve into a discharge plenum. At shutdown, the check valve arrangement is constructed to cause the check valve to rapidly close the discharge port. In other arrangements, the discharge check valve assembly may be mounted in a separator plate as a separate valve plug. This embodiment is similar to an earlier embodiment in the basic operation of the check valve.

    摘要翻译: 用于涡旋压缩机的多个排放止回阀装置将止回阀移动到更靠近排出口和压缩室的位置。 这减少了排出压力的回流量,从而减少了关闭时的反转量。 在一种类型的止回阀装置中,塞子安装在止回阀室内以为止回阀提供停止。 当压缩机运行时,该插头允许止回阀抵靠其阀座座位,以允许气体在止回阀周围流动到排气室。 关闭时,止回阀装置构造成使止回阀快速关闭排放口。 在其他布置中,排放止回阀组件可以作为单独的阀塞安装在隔板中。 该实施例与止回阀的基本操作中的早期实施例类似。

    Scroll compressor with motor control for capacity modulation
    8.
    发明授权
    Scroll compressor with motor control for capacity modulation 失效
    带电机控制的涡旋压缩机进行容量调节

    公开(公告)号:US06722861B2

    公开(公告)日:2004-04-20

    申请号:US10454340

    申请日:2003-06-04

    IPC分类号: F04B1700

    摘要: Several transmission embodiments selectively communicate rotary drive to an orbiting scroll to achieve capacity modulation. In these embodiments, when the motor is driven in a first direction, the orbiting scroll is driven at a rate which is equal to the motor speed. However, if the motor is driven in a reverse direction, the orbit rate of the orbiting scroll is reduced. The transmission ensures that the orbiting scroll member itself is driven in the proper forward direction regardless of whether the motor is being driven in forward or reverse.

    摘要翻译: 几个传动实施例选择性地将旋转驱动器传送到绕动涡旋件以实现容量调节。 在这些实施例中,当电动机沿第一方向被驱动时,绕动涡盘以等于电动机速度的速度被驱动。 然而,如果电动机沿相反方向驱动,则绕动涡卷的轨道速率减小。 该变速器确保绕动涡旋件本身被正确地向前方向驱动,而不管电机是正向或反向驱动。

    Scroll compressor with back pressure seal protection during reverse
rotation
    9.
    发明授权
    Scroll compressor with back pressure seal protection during reverse rotation 失效
    涡旋压缩机在反向旋转期间具有背压密封保护

    公开(公告)号:US6077057A

    公开(公告)日:2000-06-20

    申请号:US921448

    申请日:1997-08-29

    IPC分类号: F04C27/00 F04C18/04

    CPC分类号: F04C27/005 F04C2270/72

    摘要: A number of scroll compressor designs protect the back chamber seals upon reverse rotation. In the prior art, scroll compressors are sometimes miswired and inadvertent reverse rotation results. In some applications, this has caused the seals to be crushed. The present invention ensures that upon reverse rotation, the pressure within the back chamber is maintained at suction pressure rather than the very low pressure which may be found in the compression chambers. The seals are protected. In one embodiment, a relief is formed at a seal groove to ensure suction pressure does communicate into the back chamber. In other embodiments, a valve controls the pressure in the back chamber. Upon normal operation, the valve allows pressure from the back pressure tap to communicate into the back chamber. During reverse rotation, the valve allows suction pressure to communicate to the back chamber.

    摘要翻译: 许多涡旋压缩机设计在反向旋转时保护后室密封。 在现有技术中,涡旋式压缩机有时会出现连线错误,导致无意的反转。 在一些应用中,这导致密封件被压碎。 本发明确保在反向旋转时,后室中的压力保持在吸入压力而不是在压缩室中可以发现的非常低的压力。 密封件受到保护。 在一个实施例中,在密封槽处形成浮雕以确保吸入压力连通到后室。 在其他实施例中,阀控制后室中的压力。 在正常操作时,阀允许来自后压力抽头的压力连通到后室。 在反向旋转期间,阀允许吸入压力与后室连通。