Screw compressor
    1.
    发明授权
    Screw compressor 有权
    螺杆压缩机

    公开(公告)号:US06506039B1

    公开(公告)日:2003-01-14

    申请号:US09996824

    申请日:2001-11-30

    IPC分类号: F04C1826

    摘要: The screw compressor according to the invention is provided with a main casing 1 having male and female rotors 6, a discharge casing 3 having a discharge passage 15 for compressed gas discharged from the rotors, and an oil reservoir 19 for accumulating oil separated from the compressed gas. The discharge casing is provided with a cylindrical oil separating space section 4 formed therein so as to communicate with the discharge passage, which discharge passage is connected in a tangential direction of the oil separating space section. Further, a discharge port 14 is provided so as to communicate with the oil separating space section, and a cylindrical member 5 is further provided in the oil separating space section so as to be concentric therewith. The oil separating space section and the oil reservoir are connected to each other through a communication passage having a cross-sectional area smaller than that of the oil separating space section.

    摘要翻译: 根据本发明的螺杆式压缩机设置有具有阳转子和阴转子6的主壳体1,具有用于从转子排出的压缩气体的排出通道15的排出壳体3和用于积聚从压缩机分离的油的储油器19 加油站。 排出壳体设置有形成在其中的圆柱形油分离空间部分4,以便与排油通道连通,该排出通道沿油分离空间部分的切线方向连接。 此外,设置有与油分离空间部分连通的排出口14,并且在油分离空间部分中进一步设置与其分离的圆筒部件5。 油分离空间部分和储油器通过具有小于油分离空间部分的横截面积的连通通道相互连接。

    Screw compressor
    5.
    发明授权
    Screw compressor 有权
    螺杆压缩机

    公开(公告)号:US07014437B2

    公开(公告)日:2006-03-21

    申请号:US10765059

    申请日:2004-01-28

    IPC分类号: F01C1/16

    摘要: An oil separator and an oil reservoir are formed integral with a main casing. Also, an opening communicated with the oil reservoir is formed in a part of a lower portion of an oil separation space of the oil separator. Preferably, the opening is formed so that its width is increased as it approaches an outer peripheral side of the oil separation space from a center thereof. Further, a safety valve is installed so that a line connecting between the safety valve and the center of the oil separator is made substantially in parallel to axes of screw rotors.

    摘要翻译: 油分离器和储油器与主壳体一体形成。 此外,在油分离器的油分离空间的下部的一部分形成有与储油器连通的开口。 优选地,开口形成为使得其宽度随着其从中心接近油分离空间的外周侧而增加。 此外,安装安全阀,使得连接在安全阀和分油器中心之间的管线基本上与螺杆转子的轴线平行。

    Screw fluid machine
    6.
    发明授权
    Screw fluid machine 有权
    螺旋流体机

    公开(公告)号:US06257855B1

    公开(公告)日:2001-07-10

    申请号:US09442467

    申请日:1999-11-18

    IPC分类号: F03C200

    CPC分类号: F04C18/084 F04C18/16

    摘要: A screw rotor for use in screw compressors and screw vacuum pumps comprises a pair of rotors including a male rotor and a female rotor. These rotors have helical lobes in an axial direction and mesh with each other to form a compression chamber. Depending upon a lobe configuration of the rotors, suction pressure and discharge pressure, a negative torque for self-rotation as well as a positive torque opposing to rotation due to a compression action is generated on the female rotor in operation. This phenomenon generates when a value obtained by integrating a torque acting on the female rotor over an entire cross section in an axial direction of the rotors becomes negative. When the negative torque is generated, noises due to tooth separating vibration is caused. Then, a lobe profile is defined such that a magnitude of the negative torque is smaller than that of the positive torque in respective cross sections of the female rotor. That is, a relationship between a radius of a point of contact on a leading surface side of the female rotor and a radius of a point of contact on a trailing surface side or curvatures of the rotors are such that the negative torque is not generated on the lobe profile.

    摘要翻译: 用于螺杆式压缩机和螺杆式真空泵的螺杆转子包括一对转子,包括一个公转子和一个母转子。 这些转子在轴向上具有螺旋形叶片并且彼此啮合以形成压缩室。 根据转子的凸角构造,吸入压力和排出压力,在操作中在母转子上产生自旋转的负转矩以及由于压缩动作而与旋转相反的正转矩。 当通过将在母转子上作用的转矩在转子的轴向上的整个横截面上积分得到的值变为负时,会产生这种现象。 当产生负转矩时,会引起由于齿分离振动引起的噪音。 然后,定义凸角轮廓,使得负转矩的大小小于阴转子的相应横截面中的正转矩的大小。 也就是说,阴转子的前表面侧的接触点的半径与后表面侧的接触点的半径或转子的曲率之间的关系使得不产生负转矩 肺叶剖面。

    Screw compressor
    7.
    发明授权

    公开(公告)号:US06183227B2

    公开(公告)日:2001-02-06

    申请号:US09287560

    申请日:1999-04-06

    IPC分类号: F01C102

    CPC分类号: F04C29/026 Y10S418/01

    摘要: Oil separation from discharge gas of a screw compressor is performed with a demister provided in a discharge chamber. For solving unevenness in the speed distribution of the gas in the chamber, at least one auxiliary demister for oil separation is disposed at a local position immediately behind or near the downstream side of an outlet of a discharge passage in a discharge casing so as to be perpendicular to the flow direction of the gas at the outlet. In addition, at least one obstacle plate is disposed on the downstream side of the auxiliary demister.

    Screw compressor
    8.
    发明授权

    公开(公告)号:US06273693B1

    公开(公告)日:2001-08-14

    申请号:US09730576

    申请日:2000-12-07

    IPC分类号: F01C102

    摘要: Oil separation from discharge gas of a screw compressor is performed with a demister provided in a discharge chamber. For solving unevenness in the speed distribution of the gas in the chamber, at least one auxiliary demister for oil separation is disposed at a local position immediately behind or near the downstream side of an outlet of a discharge passage in a discharge casing so as to be perpendicular to the flow direction of the gas at the outlet. In addition, at least one obstacle plate is disposed on the downstream side of the auxiliary demister.

    Scroll type fluid machine having first and second frame members to
increase air tightness
    9.
    发明授权
    Scroll type fluid machine having first and second frame members to increase air tightness 失效
    涡旋型流体机器具有第一和第二框架构件以增加气密性

    公开(公告)号:US5622488A

    公开(公告)日:1997-04-22

    申请号:US515333

    申请日:1995-08-15

    摘要: A scroll type compressor having high efficiency and high reliability is obtained by preventing leakage of a compression chamber, increasing air tightness thereof and securing a smooth motion of an orbiting scroll member. A second frame member supported by a first frame member and slightly movable in the axial direction is disposed in the rear of an orbiting scroll member. Force is applied to the rear of the second frame member, and a slight axial movement of the orbiting scroll member is regulated by a fixed scroll member and the second frame member. As a result, both the scroll members are in tight contact or close to each other with a small space, and a smooth movement thereof can be secured, which makes it possible to obtain a scroll type compressor having high efficiency and high reliability.

    摘要翻译: 通过防止压缩室的泄漏,增加其气密性并确保绕动涡旋构件的平稳运动,获得了高效率和高可靠性的涡旋式压缩机。 由第一框架构件支撑并且在轴向方向上稍微移动的第二框架构件设置在绕动涡旋构件的后部。 力被施加到第二框架构件的后部,并且通过固定涡旋构件和第二框架构件来限制绕动涡旋构件的轻微轴向运动。 结果,两个涡旋构件以小的空间紧密接触或彼此靠近,并且可以确保其平滑的运动,这使得可以获得高效率和高可靠性的涡旋式压缩机。

    Scroll compressor
    10.
    发明授权
    Scroll compressor 失效
    涡旋压缩机

    公开(公告)号:US5660539A

    公开(公告)日:1997-08-26

    申请号:US547357

    申请日:1995-10-24

    IPC分类号: F04C27/00 F04C29/02 F01C1/04

    摘要: A lubricating construction of a scroll compressor includes a seal member provided between an orbiting scroll and a main frame to isolate a back pressure chamber from bearing portions to thereby keep the bearing portions substantially under a discharge pressure, a first oil feed passage extending from a lubricating oil portion under the discharge pressure to a space, disposed adjacent to an end of a crank portion of the crankshaft, through the crankshaft, a second oil feed passage extending from the above space to be opened to sliding portions of end plates of the orbiting and stationary scrolls through the end plate of the orbiting scroll, and communicating with the back pressure chamber, and a third oil feed passage extending from midway the first oil feed passage to be opened to an outer peripheral surface of the crankshaft, and serving to supply a lubricating oil to a main bearing portion by the use of a centrifugal pumping action produced by rotation of the crankshaft. The second oil feed passage has midway a throttle portion of a reduced flow passage area. This lubrication construction supplies the lubricating oil, using the pressure differential and the pumping action in combination.

    摘要翻译: 涡旋压缩机的润滑结构包括设置在绕动涡旋件和主框架之间的密封构件,用于将背压室与轴承部分隔离,从而保持轴承部分基本上处于排出压力下,从润滑剂延伸的第一供油通道 在排出压力下的油部分通过曲轴邻近曲轴部分的端部设置的空间,从上述空间延伸到第二供油通道,向第二供油通道延伸到轨道上的端板的滑动部分, 固定涡卷通过绕动涡旋盘的端板,并与背压室连通,第三供油通道从第一供油通道的中途延伸到打开的曲轴的外周表面,并用于提供 通过使用通过曲轴的旋转产生的离心泵送作用将润滑油润滑到主轴承部分。 第二供油通道具有减小的流动通道面积的中间节流部分。 该润滑结构使用压差和泵送动作组合供应润滑油。