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    COMPLEX SCREW ROTORS
    1.
    发明申请
    COMPLEX SCREW ROTORS 有权

    公开(公告)号：US20240426298A1

    公开(公告)日：2024-12-26

    申请号：US18821391

    申请日：2024-08-30

    Applicant: Industrial Technologies and Services, LLC

    Inventor： Luke Gray ,  Taylor Stratman ,  Bernard Conley ,  Brent Ransdell ,  Daniel Peana

    IPC: F04C18/08 ,  F04C18/16 ,  F04C18/20

    Abstract: A compressor design includes a male rotor (10) having one or more helical lobes (12) and a female rotor (14) having one or more helical grooves (16). The male rotor is mounted on a first shaft and the female rotor is mounted on a second shaft. The male rotor is positioned in a first section of a chamber and the female rotor is positioned in a second section of the chamber. Fluid enters the chamber at an inlet, and when the rotors are driven, the lobes of the male rotor fit into the grooves of the female rotor, causing compression and movement of the fluid towards an outlet or discharge end where the compressed fluid is discharged. The configuration of the lobe and groove helix, the lobe and groove profile, and the outer diameter of the rotors can be varied in different combinations to form different rotors.

    Screw compressor with male and female rotors
    3.
    发明授权
    Screw compressor with male and female rotors 有权

    公开(公告)号：US11725658B2

    公开(公告)日：2023-08-15

    申请号：US16322448

    申请日：2017-08-01

    Applicant: Johnson Controls Air Conditioning and Refrigeration (Wuxi) Co., Ltd. ,  Johnson Controls Technology Company

    Inventor： Haijun Li

    IPC: F04C18/16 ,  F04C18/20 ,  F04C18/08

    CPC classification number: F04C18/16 ,  F04C18/084 ,  F04C18/20

    Abstract: The present application provides a screw compressor that comprises a first male rotor and a second male rotor, each of the first male rotor and the second male rotor having convex-helical teeth, the first male rotor and the second male rotor being rigidly connected together; a first female rotor and a second female rotor, each of the first female rotor and the second female rotor having concave-helical teeth, the first female rotor being arranged separately from and opposite to each other; wherein the convex-helical teeth of the first male rotor are engaged with the concave-helical teeth of the first female rotor, and the convex-helical teeth of the second male rotor are engaged with the concave-helical teeth of the second female rotor. The male rotors in the screw compressor are symmetrically so that the axial force exerted on the first male rotor counteract with the axial force exerted on the second male rotor.

    Method for operating dual slide valve rotary gas compressor
    4.
    发明授权
    Method for operating dual slide valve rotary gas compressor 失效
    双滑阀旋转气体压缩机操作方法

    公开(公告)号：US4704069A

    公开(公告)日：1987-11-03

    申请号：US908016

    申请日：1986-09-16

    Applicant: Erich J. Kocher ,  Paul G. Szymaszek

    Inventor： Erich J. Kocher ,  Paul G. Szymaszek

    IPC: F04B49/00 ,  F04B49/02 ,  F04C18/16 ,  F04C18/20 ,  F04C28/12

    CPC classification number: F04C28/125 ,  F04C18/52

    Abstract: A method is disclosed for operating a large motor-driven refrigeration gas compressor which has independently movable suction and discharge slide valves to prevent undesirable, possibly damaging hydraulic pressure build-up caused by sealing oil remaining in the gas compression chambers during compressor start-up. While the compressor is started and brought up to full speed, the suction slide valve is disposed in fully unloaded position to fully open the gas suction port and the discharge slide valve is disposed in position to fully open the gas discharge port to enable excess oil in the gas compression chambers to exit freely through the compressor gas discharge port before oil pressure build-up can occur. When the compressor is at full speed, the suction slide valve is positioned to maintain a desired gas suction pressure and the discharge slide valve is positioned to equalize gas pressure between the gas compression chambers and the compressor gas discharge port. On shut-down of the compressor both slide valves are returned to their start-up positions.

    Abstract translation: 公开了一种用于操作具有可独立移动的吸入和排出滑阀的大型电动制冷气体压缩机的方法，以防止在压缩机起动期间由气体压缩室中残留的密封油引起的不希望的，可能损坏的液压积聚。 当压缩机起动并达到全速时，吸入滑阀设置在完全卸载位置，以完全打开气体吸入口，并且排出滑阀设置在完全打开气体排出口的位置，以使过多的油在 在油压累积之前可以通过压缩机气体排出口自由排出的气体压缩室。 当压缩机处于全速时，吸入滑阀被定位成保持所需的气体吸入压力，并且排出滑阀被定位成使气体压缩室和压缩机气体排出口之间的气体压力相等。 在关闭压缩机时，两个滑阀都返回到启动位置。

    Rotary compressor
    5.
    发明授权
    Rotary compressor 失效
    旋转压缩机

    公开(公告)号：US4457680A

    公开(公告)日：1984-07-03

    申请号：US489045

    申请日：1983-04-27

    Applicant: Win W. Paget

    Inventor： Win W. Paget

    IPC: F04C18/08 ,  F04C18/20 ,  F01C1/24

    CPC classification number: F04C18/20 ,  F04C18/084

    Abstract: A rotary compressor of the type in which a female rotor and a male rotor turn in opposite directions in the compressor casing, the female rotor having at least one pocket therein that receives at least one lobe on the male rotor, the lobe sweeping a cylindrical side wall of the casing to effect compression of a gas. A sealing rib is provided on the female rotor on the trailing side of the pocket, and a recess is provided on the male rotor at the rear of the lobe for receiving this rib. The female rotor has a peripheral surface extending rearwardly from the rib with respect to the direction of rotation of the female rotor, and terminating in the same or a different pocket, this peripheral surface being spaced a substantial distance radially inwardly of the surrounding cylindrical side wall of the casing, the rib sweeping this side wall with close clearance and hence effecting a portion of the compression of the compressor. The male rotor likewise has a peripheral surface spaced radially inwardly from its associated cylindrical side wall of the casing and extending from the recess in the male rotor rearwardly with respect to the direction of rotation of the male rotor to the same or a different lobe. These two peripheral surfaces, when juxtaposed, are spaced with only a small clearance thereby to seal between the rotors. The peripheral extent of these peripheral surfaces is substantially greater than that of their respective rib and recess, that on the female rotor being at least four times the peripheral extent of the rib.

    Abstract translation: 一种旋转式压缩机，其中阴转子和阳转子在压缩机壳体中相反地转动，所述阴转子具有至少一个容纳在其中的至少一个凹穴，所述凹部容纳在阳转子上的至少一个凸角，所述凸起扫掠圆柱形侧 套管的墙壁来实现气体的压缩。 密封肋设置在凹口的后侧的阴转子上，并且在用于容纳该肋的凸起的后部的阳转子上设置有凹部。 阴转子具有相对于阴转子的旋转方向从肋向后延伸的外周表面，并且终止在相同或不同的凹部中，该圆周表面在周围的圆柱形侧壁的径向向内 所述肋用间隙扫过该侧壁，从而影响压缩机的一部分压缩。 阳转子同样具有与壳体的相关联的圆柱形侧壁径向向内间隔开的周向表面，并且相对于阳转子的旋转方向向后相对于相同或不同的凸角的方向从阳转子中的凹部延伸。 这两个周边表面并置时间间隔只有很小的间隙，从而在转子之间进行密封。 这些周边表面的周边范围基本上大于其各自的肋和凹槽的周长，即在母转子上的肋的边缘的至少四倍。

    Rotary positive displacement machine with specific lobed rotor profiles
    6.
    发明授权
    Rotary positive displacement machine with specific lobed rotor profiles 失效
    具有特定叶片转子轮廓的旋转正排量机

    公开(公告)号：US4324538A

    公开(公告)日：1982-04-13

    申请号：US139224

    申请日：1980-04-11

    Applicant: Arthur E. Brown

    Inventor： Arthur E. Brown

    IPC: F01C1/12 ,  F01C1/20 ,  F04C18/20

    CPC classification number: F01C1/123

    Abstract: A rotary compressor, expansion engine, or the like. Two interengaging rotors rotate in a casing structure. The optimum number of lobes per rotor is two for pressure ratios up to about three. The first rotor has end plates thereon which open and close larger ports in the end walls. Low pressure dump pockets are formed twice per rotation and these have now been determined to have negligable loss. The first rotor has lobes of small angle so as to reduce a precompression loss. The second rotor has lobes of larger angle so as to improve performance. An interchamber throttling loss has now been reduced. When operating as a compressor machine, the discharge ports start to be uncovered about 15 degrees early for better performance.

    Abstract translation: 旋转式压缩机，膨胀机等。 两个相互接合的转子在壳体结构中旋转。 每个转子叶片的最佳数量为两个，压力比高达约三。 第一转子在其上具有端板，其在端壁中打开和关闭较大的端口。 低压卸料口每轮形成两次，这些现在已被确定为具有可忽略的损失。 第一转子具有小角度的凸角，以便减少预压缩损失。 第二转子具有较大角度的凸角以提高性能。 车间节流损失现在已经减少了。 当作为压缩机运行时，排放口开始早期提前15度左右，以获得更好的性能。

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