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1.发明申请Method of controlling the stopping operation of vacuum pump and device therefor 审中-公开控制真空泵停止运行的方法及其装置公开(公告)号：US20080063536A1
公开(公告)日：2008-03-13
申请号：US11900446
申请日：2007-09-10
CPC分类号： F04C28/06 , F04C18/126 , F04C18/16 , F04C23/005 , F04C25/02 , F04C28/08 , F04C29/04 , F04C2220/12 , F04C2270/17 , F04C2280/02 , F05C2201/0442
摘要： A method for controlling the operation of a vacuum pump when stopping the gas transferring operation thereof, the vacuum pump having a housing in which a pump chamber is formed and a gas transferring body which is rotatably disposed in the pump chamber for transferring gas, the method comprises the steps of reducing rotational speed of the gas transferring body to a first preset speed below a second preset speed that is lower than a normal speed of the gas transferring body during normal gas transferring operation of the vacuum pump, maintaining the speed of the gas transferring body below the second preset speed, and stopping the rotation of the gas transferring body when the temperature of the housing reaches a predetermined temperature which is lower than that of the housing during the normal gas transferring operation of the vacuum pump.
摘要翻译： 一种用于当停止其气体传送操作时控制真空泵的操作的方法，具有其中形成有泵室的壳体的真空泵和可旋转地设置在泵室中用于传送气体的气体输送体的方法，该方法 包括以下步骤：在真空泵的正常气体输送操作期间将气体输送体的转速降低到低于气体输送体的正常速度的第二预定速度以下的第一预设速度，保持气体的速度 并且当真空泵的正常的气体输送操作期间壳体的温度达到比壳体的温度低的预定温度时，停止气体输送体的旋转。
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公开(公告)号：US20070098585A1
公开(公告)日：2007-05-03
申请号：US11591077
申请日：2006-10-31
CPC分类号： F04C29/023 , F04C2/102 , F04C18/16 , F04C29/025 , F04C2220/12 , F04C2240/51 , F04D29/059 , F04D29/063 , F16C33/6674 , F16C2360/42 , F16C2360/43
摘要： A vacuum pump includes a housing assembly having an oil-reservoir chamber in which a lubricating oil is stored; a pair of screw rotors disposed in the housing assembly and engaged with each other; a pair of rotary shafts connected to the rotors, respectively; a plurality of bearings supporting each of the rotary shafts and having an opening; an oil-feed pump for feeding the lubricating oil from the oil-reservoir chamber to the bearing; an oil-circulation passage provided for circulating the lubricating oil from the oil-feed pump to the oil-reservoir chamber through the bearing; a cover provided at the opening of the bearing to close the opening of the bearing with a clearance remained, the cover permitting the lubricating oil to enter the bearing through the clearance; and an oil-escape passage provided adjacent to the bearing for returning to the oil-reservoir chamber the lubricating oil not entering the bearing.
摘要翻译： 真空泵包括壳体组件，其具有存储润滑油的储油室; 一对螺旋转子，其设置在所述壳体组件中并彼此接合; 分别连接到转子的一对旋转轴; 多个轴承，其支撑每个旋转轴并具有开口; 用于将润滑油从储油室供给到轴承的给油泵; 油循环通道，用于使润滑油从供油泵通过轴承循环到储油室; 设置在轴承的开口处的盖子保留了间隙以关闭轴承的开口，盖子允许润滑油通过间隙进入轴承; 以及与所述轴承相邻设置的用于使所述润滑油不进入所述轴承的油回流通道。
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公开(公告)号：US20100233006A1
公开(公告)日：2010-09-16
申请号：US12159186
申请日：2006-12-26
IPC分类号： F01C1/18
CPC分类号： F04C29/025 , F04C18/16 , F04C29/023 , F04C29/04 , F04C2220/10
摘要： A vacuum pump includes rotary shafts connected to a pair of screw-type rotors, respectively, and a pair of shaft retainers extending in the housing. Each shaft retainer supports the corresponding rotary shaft by means of a proximal bearing portion and a distal bearing portion. Each pair of the proximal and distal bearing portions are fixed in the axial direction with respect to the corresponding rotary shaft and shaft retainer. Lubricant oil is stored in an oil storage space in a gear case attached to the housing. A cooling water passage through which cooling water to cool the lubricant oil passes is formed in the gear case. A controller controls the flow rate of the cooling fluid, so that the temperature of the lubricant oil in the oil storage space is kept constant. With this configuration, when the bearing portions are fixed in the axial direction with respect to the rotary shafts and the shaft retainers, it is possible to prevent load from being applied to the bearing portions in the axial direction.
摘要翻译： 真空泵包括分别连接到一对螺杆式转子的旋转轴和在壳体中延伸的一对轴保持器。 每个轴保持器通过近侧轴承部分和远侧轴承部分支撑相应的旋转轴。 每对近端和远端轴承部分相对于相应的旋转轴和轴保持器沿轴向固定。 润滑油储存在附接到壳体的齿轮箱中的储油空间中。 在齿轮箱中形成有用于冷却润滑油的冷却水通过的冷却水通道。 控制器控制冷却流体的流量，使得储油空间中的润滑油的温度保持恒定。 利用这种构造，当轴承部分相对于旋转轴和轴保持器沿轴向方向固定时，可以防止在轴向方向上对轴承部分施加负载。
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公开(公告)号：US07458790B2
公开(公告)日：2008-12-02
申请号：US11591077
申请日：2006-10-31
CPC分类号： F04C29/023 , F04C2/102 , F04C18/16 , F04C29/025 , F04C2220/12 , F04C2240/51 , F04D29/059 , F04D29/063 , F16C33/6674 , F16C2360/42 , F16C2360/43
摘要： A vacuum pump includes a housing assembly having an oil-reservoir chamber in which a lubricating oil is stored; a pair of screw rotors disposed in the housing assembly and engaged with each other; a pair of rotary shafts connected to the rotors, respectively; a plurality of bearings supporting each of the rotary shafts and having an opening; an oil-feed pump for feeding the lubricating oil from the oil-reservoir chamber to the bearing; an oil-circulation passage provided for circulating the lubricating oil from the oil-feed pump to the oil-reservoir chamber through the bearing; a cover provided at the opening of the bearing to close the opening of the bearing with a clearance remained, the cover permitting the lubricating oil to enter the bearing through the clearance; and an oil-escape passage provided adjacent to the bearing for returning to the oil-reservoir chamber the lubricating oil not entering the bearing.
摘要翻译： 真空泵包括壳体组件，其具有存储润滑油的储油室; 一对螺旋转子，其设置在所述壳体组件中并彼此接合; 分别连接到转子的一对旋转轴; 多个轴承，其支撑每个旋转轴并具有开口; 用于将润滑油从储油室供给到轴承的给油泵; 油循环通道，用于使润滑油从供油泵通过轴承循环到储油室; 设置在轴承的开口处的盖子保留了间隙以关闭轴承的开口，盖子允许润滑油通过间隙进入轴承; 以及与所述轴承相邻设置的用于使所述润滑油不进入所述轴承的油回流通道。
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公开(公告)号：US07140846B2
公开(公告)日：2006-11-28
申请号：US10391904
申请日：2003-03-19
申请人： Shinya Yamamoto , Satoru Kuramoto , Osamu Uchiyama , Daisuke Sato , Mika Fujiwara , Masahiro Kawaguchi , Mamoru Kuwahara , Nobuaki Hoshino , Ryosuke Koshizaka
发明人： Shinya Yamamoto , Satoru Kuramoto , Osamu Uchiyama , Daisuke Sato , Mika Fujiwara , Masahiro Kawaguchi , Mamoru Kuwahara , Nobuaki Hoshino , Ryosuke Koshizaka
CPC分类号： F04C25/02 , F04C18/126 , F04C18/16 , F04C23/001 , F04C23/005
摘要： A vacuum pump having a rotary shaft that is rotated by a drive source has a main pump and a sub pump. The main pump includes a pump chamber and a gas transferring body that is located in the pump chamber. The main pump is driven by the drive source through the rotary shaft for transferring gas to an exhaust space. The sub pump is connected to the exhaust space for partially exhausting the gas from the exhaust space. The sub pump is driven by the same drive source. The displacement volume of the sub pump is smaller than that of the main pump.
摘要翻译： 具有由驱动源旋转的旋转轴的真空泵具有主泵和副泵。 主泵包括位于泵室中的泵室和气体输送体。 主泵由驱动源通过旋转轴驱动，用于将气体输送到排气空间。 子泵连接到排气空间，以从排气空间部分排出气体。 副泵由相同的驱动源驱动。 副泵的排量体积小于主泵的排量。
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公开(公告)号：US20100150760A1
公开(公告)日：2010-06-17
申请号：US12636457
申请日：2009-12-11
CPC分类号： F04C18/126 , F04C23/001 , F04C25/02 , F04C29/0021
摘要： The rotary vacuum pump includes a pump housing, a rotary shaft, a thrust movement restriction mechanism and a first elastic member. The pump housing has therein a pump chamber. The rotary shaft has thereon a rotor rotatably disposed in the pump chamber. When the rotor is rotated with the rotary shaft, gas in the pump chamber is pumped thereby to draw gas into the pump chamber. The thrust movement restriction mechanism is provided for allowing the rotor to displace in the pump chamber in one thrust direction due to thermal expansion thereof during the operation of the rotary vacuum pump. The first elastic member is provided for urging the rotary shaft in the other thrust direction opposite to the one thrust direction.
摘要翻译： 旋转真空泵包括泵壳体，旋转轴，推力运动限制机构和第一弹性构件。 泵壳体中具有泵室。 旋转轴上具有可旋转地设置在泵室中的转子。 当转子与旋转轴一起旋转时，泵室中的气体被泵送，从而将气体吸入泵室。 推力运动限制机构被设置成允许转子在旋转真空泵的操作期间由于其在热泵中的热膨胀而在一个推力方向上在泵室中移位。 第一弹性构件用于在与一个推力方向相反的另一个推力方向上推动旋转轴。
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公开(公告)号：US20060225447A1
公开(公告)日：2006-10-12
申请号：US11395490
申请日：2006-03-30
申请人： Shinya Yamamoto , Hideyuki Ito , Ryosuke Koshizaka , Osamu Uchiyama , Mamoru Kuwahara , Takeshi Kawata , Satoru Kuramoto
发明人： Shinya Yamamoto , Hideyuki Ito , Ryosuke Koshizaka , Osamu Uchiyama , Mamoru Kuwahara , Takeshi Kawata , Satoru Kuramoto
CPC分类号： F25B5/04 , F25B5/00 , F25B41/04 , F25B49/02 , F25B2341/0652 , F25B2600/2507 , F25B2600/2513 , F25B2700/2117 , Y02B30/72
摘要： A cooling unit which contains refrigerant for exchanging heat with an object member of cooling includes a refrigerant passage and cooling means. The refrigerant passage allows the refrigerant to circulate therethrough. The cooling means communicates with the refrigerant passage for supplying the refrigerant passage with the refrigerant. The cooling means includes a refrigeration circuit, a compressor, a condenser, decompression means, an evaporator, a refrigerant supply path, a refrigerant return path, refrigerant control means and first pressure control means. The refrigerant control means has an on mode which allows the refrigerant to circulate through the refrigerant passage at a flow rate which enables the refrigerant to maintain gas-liquid two-phase flow by allowing the condenser to communicate with the refrigerant passage, and an off mode which prevents the refrigerant from circulating through the refrigerant passage by preventing the condenser from communicating with the refrigerant passage.
摘要翻译： 包含用于与冷却对象构件进行热交换的制冷剂的冷却单元包括制冷剂通道和冷却装置。 制冷剂通道允许制冷剂循环通过。 冷却装置与用于向制冷剂供给制冷剂通道的制冷剂通道连通。 冷却装置包括制冷回路，压缩机，冷凝器，减压装置，蒸发器，制冷剂供给路径，制冷剂返回路径，制冷剂控制装置和第一压力控制装置。 制冷剂控制装置具有使制冷剂以制冷剂通过制冷剂流通的方式循环，该流量使得制冷剂能够通过使冷凝器与制冷剂通路连通而保持气液两相流，而关闭模式 其通过防止冷凝器与制冷剂通路连通而防止制冷剂循环通过制冷剂通路。
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公开(公告)号：US20050118041A1
公开(公告)日：2005-06-02
申请号：US10996578
申请日：2004-11-24
CPC分类号： F04B43/02 , F04B43/0054
摘要： A diaphragm pump includes a diaphragm, a diaphragm case and a driver. The diaphragm has a center point and an outer peripheral portion. The diaphragm case supports the diaphragm at the outer peripheral portion thereof, thereby defining a pump chamber in the diaphragm case. The driver holds the diaphragm at the center point thereof. The diaphragm is deformed as the driver is reciprocated, thereby accomplishing a fluid to flow into and to be discharged out of the pump chamber. The driver includes a fitting member and a flange. The fitting member fits the diaphragm and has a first surface for contacting the diaphragm. The flange is formed outside the fitting member. The flange has a second surface for contacting the diaphragm when the diaphragm is deformed toward the pump chamber. The second surface has a first convex surface region which is formed continuously with the first surface.
摘要翻译： 隔膜泵包括隔膜，隔膜壳和驱动器。 隔膜具有中心点和外周部。 隔膜壳体在其外周部分处支撑隔膜，从而在隔膜壳体中限定泵室。 驱动器将隔膜保持在其中心点。 当驱动器往复运动时，隔膜变形，从而使流体流入并排出泵室。 驱动器包括配件和法兰。 配合构件适合隔膜并且具有用于接触隔膜的第一表面。 凸缘形成在配件部件的外侧。 当隔膜向泵室变形时，凸缘具有用于接触隔膜的第二表面。 第二表面具有与第一表面连续形成的第一凸表面区域。
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公开(公告)号：US06663367B2
公开(公告)日：2003-12-16
申请号：US10086119
申请日：2002-02-26
IPC分类号： F04C1818
CPC分类号： F04C27/009
摘要： A Roots pump rotates a plurality of rotors by a pair of rotary shafts to draw gas. Each rotary shaft extends through a rear housing member of the Roots pump. An annular shaft seal is fitted around each rotary shaft and is received in a recess formed in the rear housing member. A helical groove is formed in a circumferential side of each rotary shaft. Each helical groove urges oil between the circumferential side of the associated shaft seal and the circumferential wall of the recess to move from a side corresponding to pump chambers toward a gear accommodating chamber when the associated rotary shaft rotates. This preferably prevents oil from leaking to the pump chambers.
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公开(公告)号：US07364414B2
公开(公告)日：2008-04-29
申请号：US10655451
申请日：2003-09-03
IPC分类号： F04B39/00
CPC分类号： F04B39/123 , F04B37/14 , F04C29/06 , F04D29/661
摘要： A fluid pump system has a cover, a fluid pump and a conduit. An inside of the cover is divided into a main chamber and a sub chamber. The fluid pump is accommodated in the main chamber. The conduit extends from the fluid pump to an outside of the cover through the sub chamber.
摘要翻译： 流体泵系统具有盖，流体泵和导管。 盖子的内部被分成主室和副室。 流体泵容纳在主室中。 导管从流体泵延伸通过副室到盖的外部。
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