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公开(公告)号：US4963076A
公开(公告)日：1990-10-16
申请号：US332867
申请日：1989-04-03
IPC分类号： F04D29/056 , F04D25/06 , F04D29/04 , F04D29/059 , F04D29/62 , F04D29/66
CPC分类号： F04D29/059 , F04D25/06 , F04D29/624 , F04D29/626 , F04D29/668
摘要： Rotating unit including a shaft, a blower rotor, and a motor armature is removable as a unit from the motor housing. The diameter of a first resiliently mounted bearing holder toward the blower rotor is larger than the diameter of the armature, which in turn is larger than the diameter of a second resiliently mounted bearing holder remote from the blower rotor.
摘要翻译： 包括轴，鼓风机转子和电动机电枢的旋转单元可作为来自电动机壳体的单元而被移除。 第一弹性安装的轴承保持器朝向鼓风机转子的直径大于电枢的直径，该直径大于远离鼓风机转子的第二弹性安装的轴承保持器的直径。
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2.发明授权Method of producing a rotor for rotary slide-vane vacuum pumps, and a rotor produced by said method 失效用于旋转滑片式真空泵的转子的制造方法以及由该方法制造的转子
公开(公告)号：US4561837A
公开(公告)日：1985-12-31
申请号：US150034
申请日：1980-05-15
CPC分类号： F01C21/08 , B23P13/02 , Y10T29/49234 , Y10T29/49861
摘要： A rotor for a rotary slide-vane vacuum pump and a method of producing same comprises providing two rotor sections, each having a shaft stub, a rotor portion and a plane or contact surface produced by lathing, forming axial slot portions for accommodate one or more slide vanes through the contact surfaces, assembling the two rotor sections by the use of an assembling jig and fixedly joining the sections together and finishing the external surfaces of the assembled rotor with respect to at least one of length and diameter while the rotor is held in one and the same fixture.
摘要翻译： 用于旋转滑片式真空泵的转子及其制造方法包括提供两个转子部分，每个转子部分具有轴桩，转子部分和通过车床产生的平面或接触表面，形成用于容纳一个或多个的轴向槽部分 通过接触表面滑动叶片，通过使用组装夹具组装两个转子部分并将部分固定地连接在一起，并且相对于长度和直径中的至少一个而将组装的转子的外表面整理，同时将转子保持在 一个相同的夹具。
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3.发明授权Gas friction vacuum pump having at least three differently configured pump stages releasably connected together 失效气体摩擦真空泵具有可拆卸地连接在一起的至少三个不同构造的泵级
公开(公告)号：US5553998A
公开(公告)日：1996-09-10
申请号：US338452
申请日：1994-11-16
CPC分类号： F04D25/16 , F04D19/046
摘要： The invention relates to a gas friction vacuum pump having at least two differently configured pump stages each having a rotor section and a housing section. In order to adapt the pump to different applications, the pump stages are detachably connected with each other so that different inlet stages can be mounted on the high-vacuum side.
摘要翻译： PCT No.PCT / EP93 / 00984 371日期：1994年11月16日 102（e）日期1994年11月16日PCT提交1993年4月23日PCT公布。 公开号WO93 / 23672 日期1997年11月25日本发明涉及一种具有至少两个不同构型的泵级的气体摩擦真空泵，每个泵级具有转子部分和壳体部分。 为了使泵适应不同的应用，泵级可彼此分离地连接，使得不同的入口级可以安装在高真空侧。
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公开(公告)号：US5051060A
公开(公告)日：1991-09-24
申请号：US554721
申请日：1990-07-19
CPC分类号： F04D29/681 , F04D19/044 , F05B2250/25 , Y10S415/914
摘要： A gas friction pump has an inlet arranged to be coupled to a vessel to be evacuated; an outlet and an outlet-side pumping stage formed of a helical gas pumping channel. The pump further has a scavenging gas inlet circumferentially surrounding the helical gas pumping channel for exposing the channel to a scavenging gas.
摘要翻译： 气体摩擦泵具有被布置成联接到要抽真空的容器的入口; 由螺旋气体泵送通道形成的出口和出口侧泵送级。 泵还具有围绕螺旋气体泵送通道的清扫气体入口，用于将通道暴露于清除气体。
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公开(公告)号：US4300875A
公开(公告)日：1981-11-17
申请号：US57996
申请日：1979-07-16
CPC分类号： F01C17/06 , F04C18/0215 , F04C29/0057
摘要： In a displacement machine operating according to the spiral principle and having two displacement elements presenting respective axially interengaging sprial-shaped walls, and drive means connected between the elements to produce a relative translatory circular movement therebetween, an elastic suspension is provided to support at least one of the displacement elements for permitting elastic movement between the elements in a plane perpendicular to the axis of translatory circular movement.In such a displacement machine, whether or not the elastic suspension is provided, the walls of the displacement elements are preferably made, at least at the surfaces contacting one another, of respectively different materials presenting a low mutual coefficient of friction.
摘要翻译： 在根据螺旋原理操作并且具有两个位移元件的位移机构中，所述位移元件具有相应的轴向相互接合的弹性壁，以及连接在元件之间以在其间产生相对平移的圆周运动的驱动装置，提供弹性悬架以支撑至少一个 的位移元件，用于允许在垂直于平移圆周运动的轴的平面中的元件之间的弹性运动。 在这种位移机器中，无论弹性悬架是否设置，位移元件的壁最好至少在相互接触的表面上分别形成具有低相互摩擦系数的不同材料。
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公开(公告)号：US5059092A
公开(公告)日：1991-10-22
申请号：US568037
申请日：1990-08-16
IPC分类号： F04D29/056 , F04D19/04 , F04D29/04 , F04D29/058 , F04D29/059 , F16C32/04 , F16C39/02 , F16C39/06
CPC分类号： F04D29/058 , F04D19/048 , F16C32/0442 , F16C32/0478 , F16C39/02 , F16C2300/62 , F16C2360/45
摘要： A vacuum pump has a pump housing, magnetic bearings mounted in the housing, a rotary assembly including a pump rotor disposed in the housing and supported for rotation by the magnetic bearings and two spaced emergency bearings supporting the pump rotor when it deviates by a predetermined extent from a desired position. The rotary assembly has a center of gravity which is situated between the emergency bearings and which is spaced approximately equally therefrom.
摘要翻译： 真空泵具有泵壳体，安装在壳体中的磁性轴承，旋转组件，其包括设置在壳体中的泵转子，并且当其偏移预定的范围时被支撑用于由磁轴承转动的两个间隔开的紧急轴承和泵转子 从期望的位置。 旋转组件具有重心，该重心位于紧急轴承之间，其大致相等地间隔开。
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7.发明授权
公开(公告)号：US4983107A
公开(公告)日：1991-01-08
申请号：US192559
申请日：1988-05-11
CPC分类号： F04C18/082 , F04C29/04
摘要： A twin-shaft vacuum pump includes a pump chamber, a pair of rotary pistons disposed in the pump chamber, and plates which laterally delimit the pump chamber, and a housing ring which peripherally delimits the pump chamber. In order to increase the ability of the pump to withstand thermal stresses, the housing ring and the rotary pistons are made of different materials, with the coefficient of expansion of the piston material being lower than the coefficient of expansion of the housing material. Other improvements include cooling of the lateral end plates, cooling of the rotors, and the provision of sleeves which serve to fix the position of the rotors on the shafts and which are composed of a material whose coefficient of expansion is lower than that of the rotor material.
摘要翻译： 双轴真空泵包括泵室，设置在泵室中的一对旋转活塞和横向限定泵室的板，以及外围限定泵室的壳体环。 为了增加泵承受热应力的能力，壳体环和旋转活塞由不同的材料制成，活塞材料的膨胀系数低于壳体材料的膨胀系数。 其他改进包括冷却侧端板，冷却转子，以及提供套筒，用于将转子的位置固定在轴上，该套筒的膨胀系数低于转子的膨胀系数 材料。
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公开(公告)号：US4797062A
公开(公告)日：1989-01-10
申请号：US111150
申请日：1987-10-20
CPC分类号： F04D29/5853 , F04D19/04 , F16J15/406
摘要： A device for moving a gas at a subatmospheric pressure with a screwthread-like device on at least one of the facing surfaces of a rotor spacedly surrounded axially by a relatively-rotatable stator insulates the stator from a housing for the device to prevent thermal variation of the space between the rotor and stator and, thus, keeping the gas-moving action constant.
摘要翻译： 一个用低于大气压的气体用螺丝状的装置移动到由可相对旋转的定子轴向间隔开的转子的至少一个相对表面上，该定子使定子与用于该装置的壳体绝缘，以防止热变化 转子和定子之间的空间，从而保持气体移动动作恒定。
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公开(公告)号：US4974318A
公开(公告)日：1990-12-04
申请号：US458384
申请日：1989-12-28
CPC分类号： F01C1/082 , F01C1/126 , Y10T29/49236 , Y10T29/49242 , Y10T29/4984
摘要： A dual-shaft machine comprising a housing, two pistons rotatably mounted in the housing leaving a cold play spacing between one another and said housing, and a coating provided on either the housing or the pistons, or both, to reduce the cold play spacing to that required by the intended field of use of the machine.
摘要翻译： 一种双轴机器，包括壳体，两个可旋转地安装在壳体中的活塞，两个活塞之间留下冷冲击间隔和所述壳体，以及设置在壳体或活塞上或两者上的涂层，以将冷空气间隔减小到 这是由机器的预期使用场所所要求的。
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公开(公告)号：US4639199A
公开(公告)日：1987-01-27
申请号：US824308
申请日：1986-01-30
CPC分类号： F04C28/24 , F04C18/126
摘要： A two-shaft vacuum pump which draws gas in at an inlet and compresses it at a first outlet for discharge, thereby producing a vacuum at the inlet, has a second, pressure-responsive outlet from the area where the gas is compressed for discharge from the first outlet. The second outlet thereby relieves excess, compression gas pressure which could overload the pump motor, for example, at the start of operation when high-density gas is drawn in for compression.
摘要翻译： 一种双轴真空泵，其在入口处吸入气体并在第一出口处压缩以排出，从而在入口处产生真空，具有从气体被压缩的区域的第二压力响应出口，用于从 第一个出口。 第二出口因此减轻了例如当高密度气体被抽吸用于压缩时在操作开始时过量的压缩气体压力，这可能使泵电动机过载。
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