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公开(公告)号：US5549463A
公开(公告)日：1996-08-27
申请号：US398441
申请日：1995-03-03
申请人： Osamu Ozawa
发明人： Osamu Ozawa
CPC分类号： F04C18/16 , F04C18/126 , F04C23/005 , F04C25/02 , F04C2220/10 , F04C2220/12
摘要： A composite dry vacuum pump of this invention has closed chambers accommodating a pair of screw rotors and a pair of roots rotors respectively mounted coaxially to the front ends of the screw rotors. The roots rotors and the screw rotors are rotated at the same speed in opposite directions by a motor to aspirate fluids from a suction port on one end wall and discharge the fluid through a discharge port on the outer surface of the other end wall. The characteristics of power requirement of the portion of the roots rotors and that of the portion of the screw rotors changes inversely to the suction port pressure variation, therefore the characteristic of the total power requirement of the pump of this invention is almost flat over the all pressure range and the motor having smaller output power can operate the pump according to the present invention. Furthermore, the pump of this invention having the roots rotors coaxially assembled on the front end of the screw rotors makes a device containing this pump more compact one.
摘要翻译： 本发明的复合干燥真空泵具有容纳一对螺杆转子和分别与螺杆转子的前端同轴安装的一对根转子的封闭室。 根部转子和螺杆转子通过电动机以相反的方向以相同的速度旋转，以从一个端壁上的吸入口吸出流体，并通过另一端壁的外表面上的排出口排出流体。 根转子部分和螺杆转子部分的功率要求的特征与吸入口压力变化成反比变化，因此，本发明的泵的总功率要求的特征在所有方面几乎是平坦的 压力范围和输出功率较小的电动机可以操作根据本发明的泵。 此外，具有同轴组装在螺杆转子的前端上的根转子的本发明的泵使得包含该泵的装置更紧凑。
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82.发明授权
公开(公告)号：US5449276A
公开(公告)日：1995-09-12
申请号：US9632
申请日：1993-01-27
申请人： Teruo Maruyama , Akira Takara
发明人： Teruo Maruyama , Akira Takara
IPC分类号： F04B37/16 , F04B41/06 , F04C18/08 , F04C18/16 , F04C23/00 , F04C25/02 , F04C28/00 , F04C29/00 , F04D19/04 , H01L21/3065 , F04B23/08
CPC分类号： F04C23/005 , F04C18/16 , F04C29/0085 , F04D19/046 , F04C2240/402 , F04C2240/51
摘要： A fluid rotating apparatus includes a plurality of rotors accommodated in a housing, at least one of the rotors having its outer diameter different from that of the other of the rotors. Bearings are provided for supporting rotary shafts of the plurality of rotors. A fluid suction port and a fluid discharge port are formed in the housing. A motor is provides for rotating at least one of the plurality of rotors, and a control system for synchronously controlling the plurality of rotors in a contactless manner is provided for each rotary shaft of the plurality of rotors.
摘要翻译： 流体旋转装置包括容纳在壳体中的多个转子，至少一个转子的外径与另一个转子的外径不同。 提供用于支撑多个转子的旋转轴的轴承。 流体吸入口和流体排出口形成在壳体中。 电动机提供用于旋转多个转子中的至少一个转子，并且为多个转子中的每个转轴提供用于以非接触方式同步地控制多个转子的控制系统。
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公开(公告)号：US5374170A
公开(公告)日：1994-12-20
申请号：US907035
申请日：1992-07-01
申请人： Noburu Shimizu , Kiyoshi Yanagisawa
发明人： Noburu Shimizu , Kiyoshi Yanagisawa
摘要： To provide a screw vacuum pump which is compact and yet capable of attaining a high degree of vacuum. A screw vacuum pump having a pair of male and female rotors 7 and 7A rotating in mesh with each other around two parallel axes, respectively, and a casing 1 for accommodating the two rotors 7 and 7A, the casing 1 having a suction port 8b and a discharge port 9b, the screw vacuum pump further having a process of sucking a gas from the suction port 8b into a space defined between the rotors 7 and 7A, a process of transferring the gas, a process of compressing the gas, and a process of discharging the gas from the discharge port 9b, wherein the suction port 8b is closed early, thereby providing an expansion process between the suction and transfer processes.
摘要翻译： 提供紧凑且能够获得高真空度的螺杆真空泵。 螺杆式真空泵具有分别围绕两个平行的轴线彼此啮合的一对阳转母和转子7和7A，以及用于容纳两个转子7和7A的壳体1，壳体1具有吸入口8b和 排出口9b，螺杆式真空泵还具有从吸入口8b吸入气体到转子7和7A之间的空间的过程，转移气体的过程，压缩气体的过程以及过程 从排出口9b排出气体，其中吸入口8b被早期关闭，从而在抽吸和转移过程之间提供膨胀过程。
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公开(公告)号：US5352097A
公开(公告)日：1994-10-04
申请号：US6500
申请日：1993-01-21
申请人： Daisuke Itou , Teruo Maruyama
发明人： Daisuke Itou , Teruo Maruyama
IPC分类号： F04B37/16 , F04B41/06 , F04C18/08 , F04C23/00 , F04C25/02 , F04C28/00 , F04C29/00 , F04D19/04 , H01L21/302 , H01L21/3065
CPC分类号： F04C23/005 , F04C25/02 , F04C29/0085 , F04D19/046 , F04C2240/402
摘要： A vacuum pump includes a positive displacement vacuum pump structure section disposed on a discharge opening side; a kinetic vacuum pump structure section, disposed on a suction opening side, for providing a high vacuum; and a kinetic vacuum pump structure section, disposed on a suction opening side, for providing a high pumping speed. The construction of the kinetic vacuum pump structure section is different from that of the kinetic vacuum pump structure section so as to differ relative thereto in one of ultimate pressure, pumping speed, and pumping speed of sucked gas with respect to a molecular weight of the sucked gas.
摘要翻译： 真空泵包括设置在排出口侧的正位移真空泵结构部分; 设置在吸入口侧的用于提供高真空的动力学真空泵结构部分; 以及设置在吸入口侧的动力学真空泵结构部分，用于提供高的泵送速度。 动力学真空泵结构部分的结构与动力学真空泵结构部分的结构不同，以相对于吸入气体的极限压力，泵送速度和抽吸速度相对于吸入的分子量的方式而不同 加油站。
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公开(公告)号：US5314320A
公开(公告)日：1994-05-24
申请号：US907033
申请日：1992-07-01
申请人： Noburu Shimizu , Kiyoshi Yanagisawa
发明人： Noburu Shimizu , Kiyoshi Yanagisawa
摘要： A screw vacuum pump is designed so that it is possible to reduce the load on the pump at the time of starting and evacuation of a gas under atmospheric pressure. The screw vacuum pump has male and female rotors rotating in mesh with each other around two parallel axes, respectively, and a casing for accommodating the rotors, the casing having a suction port and a discharge port, wherein the discharge port is formed so that V.sub.1 /V.sub.2 is in the range of 1.5 to 0.51, where V.sub.1 is a groove volume defined by the casing and the male and female rotors immediately after a gas has been trapped, and V.sub.2 is a groove volume immediately before the gas is discharged.
摘要翻译： 螺杆式真空泵设计成能够在大气压下开始排气时减少泵上的负荷。 螺杆式真空泵分别具有围绕两个平行的轴线彼此啮合的阳和阴转子，以及用于容纳转子的壳体，壳体具有吸入口和排出口，其中排出口形成为V1 / V2在1.5至0.51的范围内，其中V1是在气体被捕获之后立即由壳体和公和母转子限定的槽体积，V2是在气体排出之前的槽体积。
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86.发明授权
公开(公告)号：US5234323A
公开(公告)日：1993-08-10
申请号：US811662
申请日：1991-12-23
CPC分类号： F04C25/02 , F04C29/0092
摘要： A machine of the fluid entrainment or the positive displacement type, such as a compressor or a vacuum pump, in which injection of dry gas is effected in the discharge region of said machine or of one of its stages, wherein said injection is effected in a distributed manner over a surface.
摘要翻译： 一种液体夹带机器或正位移型机器，例如压缩机或真空泵，其中在所述机器或其一个级的排放区域中进行干燥气体的注入，其中所述注射在 分布在一个表面上。
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87.发明授权
公开(公告)号：US5181414A
公开(公告)日：1993-01-26
申请号：US750999
申请日：1991-08-28
摘要： A pumping apparatus for pumping a gas having application to helium leak detectors has a vane and oil-seal type vacuum pump immersed in a closed tank (9) partially filled with oil (10). The apparatus also includes an oil pump (20) for renewing the oil seal located inside the tank. The oil pump is equipped with a noise-reducing mixing device enabling the oil for constituting the oil seal to be mixed with a noise-reducing gas. The noise-reducing gas is fed from the outside of the tank to the mixing device by means of a pipe (24) passing through the wall of the tank and opening via a Venturi tube to the suction duct of the immersed oil pump.
摘要翻译： 用于泵送应用于氦泄漏检测器的气体的泵送装置具有浸入部分填充有油（10）的封闭罐（9）中的叶片和油封型真空泵。 该装置还包括用于更新位于罐内的油封的油泵（20）。 油泵配备有减噪混合装置，使得用于构成油封的油与降噪气体混合。 降噪气体通过管道（24）从罐外部供给到混合装置，并通过文丘里管打开，经过浸入式油泵的吸入管道。
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公开(公告)号：US5178522A
公开(公告)日：1993-01-12
申请号：US704351
申请日：1991-05-23
申请人： Thomas Abelen , Lutz Arndt , Winfried Kaiser , Peter Muller , Dieter Vorberg
发明人： Thomas Abelen , Lutz Arndt , Winfried Kaiser , Peter Muller , Dieter Vorberg
CPC分类号： F04C29/02
摘要： A two-stage rotary vane vacuum pump includes a pre-vacuum stage having a pre-vacuum pumping chamber and an outlet valve; a main oil sump; and a first oil conduit having a first opening communicating with the main oil sump and a second opening communicating with the pre-vacuum pumping chamber. The first opening is located at a level below an operational oil level in the main oil sump. There is further provided an intermediate oil sump situated at a level above the outlet valve and being arranged for receiving oil from the pre-vacuum pumping chamber; and a second oil conduit leading from the intermediate oil sump to components of the vacuum pump to be supplied with oil. All such components are situated at a level below the intermediate oil sump.
摘要翻译： 两级旋片式真空泵包括具有预真空泵送室和出口阀的预真空级; 主油槽 以及第一油管，其具有与所述主油槽连通的第一开口和与所述预真空泵送室连通的第二开口。 第一个开口位于主油底壳的工作油位以下。 还设置有位于出口阀上方的中间油底壳，并被布置成从预真空泵送室接收油; 以及从中间油底壳引导到真空泵部件的第二油管，供给油。 所有这些部件位于中间油底壳的下方。
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公开(公告)号：US5145335A
公开(公告)日：1992-09-08
申请号：US704524
申请日：1991-05-24
IPC分类号： F04C18/344 , F04B39/06 , F04C23/00 , F04C25/02 , F04C29/06
CPC分类号： F04C29/066 , F04B39/066 , F04C23/008
摘要： A vacuum pump includes a first pump housing defining a pumping chamber; a pump rotor received in the pumping chamber; a drive motor operatively connected to the pump rotor; an oil casing receiving the first pump housing; and a second pump housing surrounding the first pump housing and the drive motor.
摘要翻译： 真空泵包括限定泵送室的第一泵壳体; 泵送转子容纳在泵送室中; 可操作地连接到所述泵转子的驱动马达; 接收第一泵壳体的油壳; 以及围绕所述第一泵壳体和所述驱动马达的第二泵壳体。
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90.发明授权Compound turbomolecular vacuum pump having two rotary shafts and delivering to atmospheric pressure 失效具有两个旋转轴并具有大气压力的复合涡轮分子真空泵
公开(公告)号：US5118251A
公开(公告)日：1992-06-02
申请号：US634623
申请日：1990-12-27
申请人： Claude Saulgeot
发明人： Claude Saulgeot
CPC分类号： F04D19/046 , F04C23/005 , F04D19/024 , F04D19/042 , F04C2240/402
摘要： A pump enabling a molecular vacuum to be reached, the pump comprising a stator and rotor assembly comprising two rotors having parallel shafts rotating in opposite directions, the stator including a suction inlet and a delivery outlet, wherein the pump is split axially into a first zone situated at its suction end, followed by a second zone, said first zone being of the turbomolecular type having fins and two rotors, said second zone being of the type having two screws or two rotary pistons on parallel shafts, one of the shafts being driven by a motor and the other being driven by a transmission.
摘要翻译： 一种能够达到分子真空的泵，所述泵包括定子和转子组件，所述定子和转子组件包括具有相反方向旋转的平行轴的两个转子，所述定子包括抽吸入口和输送出口，其中所述泵轴分成第一区域 位于其吸入端，随后是第二区域，所述第一区域是具有翅片和两个转子的涡轮分子型，所述第二区域在平行轴上具有两个螺钉或两个旋转活塞，其中一个轴被驱动 通过电动机，另一个由变速器驱动。
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