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公开(公告)号：EP2104640A1
公开(公告)日：2009-09-30
申请号：EP08705296.5
申请日：2008-01-09
申请人： Xerex AB
发明人： TELL, Peter
CPC分类号： F04F5/52 , B25J15/0675 , B66C1/0212 , B66C1/0268 , B66C1/0293
摘要： The invention relates to an ejector device that is adapted to generate a negative pressure by means of compressed air, which via a compressed-air duct (2) is fed to an ejector (1) included in the device, comprising a valve member arranged in the compressed-air duct and controllable in order to, in the open position, allow flow of compressed air to the ejector, an air suction duct (3) arranged between the ejector and a gripping member driven by negative pressure, as well as a vent valve (7;70) that is arranged in flow communication with the air suction duct and that, in an open position, places the gripping member in communication with the atmosphere. The ejector device is characterized in that the valve member embraces: a primary valve (5;50) arranged in the direction of flow of the compressed air; a secondary valve (6;60) arranged in the direction of flow downstream of the primary valve; a flow section (2') of the compressed-air duct running between the primary valve and the secondary valve, through which flow section (2') compressed air flows in the open positions of the valves, the vent valve (7;70) being in flow communication with said flow section (2') in order to, in the open position of the primary valve, continuously being subjected to a closing air pressure, independently of the open or closed position of the secondary valve.
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公开(公告)号：EP2102508A1
公开(公告)日：2009-09-23
申请号：EP08705295.7
申请日：2008-01-09
申请人： Xerex AB
发明人： TELL, Peter
IPC分类号： F04F5/52
摘要： The invention relates to an ejector device that is effective to generate a negative pressure by means of compressed air that is fed to an ejector (1) included in the device via a compressed-air duct (2), furthermore comprising an air suction duct (3), a pressure sensor (18) arranged in the air suction duct as well as an electrically activatable valve member (5) arranged in the compressed-air duct and effective for the regulation of the flow of compressed air to the ejector, as well as electrically supplied control electronics (6) that at least is adapted to actuate the valve member in response to the pressure in the air suction duct detected by the sensor, furthermore comprising an energy- storing member in the form of an accumulator (7) by which the control electronics is supplied with electricity. The ejector device is characterized by a generator (8) that, via a charging air duct (9), is in flow communication with the compressed-air duct (2) and is driven by compressed air for the generation of electrical energy, which is brought into the accumulator (7) for charging the same.
摘要翻译： 经由压缩空气管道输送到装置的喷射器的压缩空气元件产生负压的喷射器装置包括空气吸入管道，压力传感器和布置在压缩空气管道中的可电活动的阀构件，用于 调节到喷射器的压缩空气的流动，以及适于响应于由传感器检测到的空气吸入管道中的压力来致动阀构件的供电控制电子器件（6）。 该装置包括：控制电子装置供给电力的蓄电池;以及经由充气风道（9）与压缩空气管道流动连通并由用于产生电能的压缩空气驱动的发电机， 将其带入累加器中以对其进行充电。
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公开(公告)号：EP1064464B1
公开(公告)日：2004-11-03
申请号：EP99912199.9
申请日：1999-03-12
申请人： XEREX AB
发明人： TELL, Peter
IPC分类号： F04C5/00
CPC分类号： F04F5/467
摘要： Ejector (1) comprising two or more nozzles (2, 3, 4, 5) arranged in series, wherein a stream of air fed at high velocity through the nozzles is used to create a negative pressure in an outer, surounding space (V, V'), the surrounding space being in flow communication (10) with at least one slot (7, 8, 9) located between the nozzles, wherein the nozzles are coupled together and assembled into an integrated nozzle body (1) having at least one flexible valve member (11) integrally arranged within the nozzle body to cover the flow communication (10) with the surrounding space upon reaching a certain, desired pressure difference between the surrounding space and the atmosphere.
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公开(公告)号：EP3236083A1
公开(公告)日：2017-10-25
申请号：EP16166439.6
申请日：2016-04-21
申请人： Xerex AB
发明人： TELL, Peter
摘要： A vacuum ejector device (2) for generating at least partial vacuum to be supplied to a gripping member (4), comprising a device body (6) having an elongated shape along a longitudinal axis A.
A movable sealing and venting element (24) is provided and is structured to selectively substantially close and seal, in a sealing position, a vacuum duct (16) when the air supply is activated, and to open or vent said vacuum duct to release or vent via a venting duct (26), in a venting position, the vacuum within the gripping member (4) when the vacuum source or air supply is deactivated. The sealing and venting element (24) is arranged essentially at the longitudinal axis A, and that the venting duct (26) is arranged and provides for fluid communication between the sealing and venting element (24) and a venting outlet port (28) provided at a long side of said elongated device body (6).摘要翻译： 一种真空喷射器装置（2），用于产生至少部分真空以被供应到夹持构件（4），该真空喷射器装置包括具有沿着纵向轴线A的细长形状的装置本体（6）。活动密封和排气元件（24） 被设置并构造成当气源被激活时在密封位置选择性地基本上关闭和密封真空管道（16），并且打开或排出所述真空管道以通过通气管道（26）释放或排出， 在通风位置时，当真空源或空气供应被停用时，抓取构件（4）内的真空。 密封和排气元件（24）基本上布置在纵向轴线A处，并且排气管（26）布置并提供密封和排气元件（24）与设置的排气出口端口（28）之间的流体连通 在所述细长装置本体（6）的长侧上。
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15.发明授权MULTI-STAGE VACUUM EJECTOR WITH MOULDED NOZZLE HAVING INTEGRAL VALVE ELEMENTS 有权MEHRSTUFIGER VAKUUMEJEKTOR MIT GEFORMTERDÜSEMIT INTEGRIERTEN VENTILELEMENTEN
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16.发明授权VACUUM EJECTOR WITH TRIPPED DIVERGING EXIT FLOW NOZZLE 有权VAKUUMEJEKTOR MIT GETRIGGERTER DIVERGIERENDERLUFTAUSSTRÖMDÜSE
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公开(公告)号：EP2935903A1
公开(公告)日：2015-10-28
申请号：EP13811201.6
申请日：2013-12-18
申请人： Xerex AB
发明人： TELL, Peter
摘要： So as to offer the choice of generating a higher vacuum at quicker response times and less space requirements in a more versatile manner, the invention provides an ejector system comprising: a primary ejector in a drive stage and a booster ejector connected in parallel with said primary ejector for simultaneously generating a vacuum across a booster stage, said booster ejector being configured to generate a vacuum to a lower pressure in said booster stage than is said primary ejector in said drive stage, said booster stage and said drive stage being connected to a common volume to be evacuated and a valve being provided to close the connection between the drive stage and the volume to be evacuated when the pressure in the volume to be evacuated falls below the minimum pressure that can be generated in the drive stage.
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公开(公告)号：EP2935901A1
公开(公告)日：2015-10-28
申请号：EP13808040.3
申请日：2013-12-18
申请人： Xerex AB
发明人： TELL, Peter
摘要： So as to offer greater design freedom for the upstream nozzles since the resistance upon exit of the jet flow into ambient pressure is encountered less abruptly, the invention provides al. multi-stage ejector for generating a vacuum from a source of compressed air by passing said compressed air through a series of nozzles, accelerating said compressed air, and entraining air so as to form a jet flow in two or more stages including at least a drive stage and a second stage and generating a vacuum across each stage before ejecting said jet flow through an outlet of the ejector, wherein said ejector outlet is formed as a nozzle extending to the outlet end of the ejector and arranged to receive the jet flow from the final stage of the ejector, and wherein said ejector outlet nozzle includes a diverging section extending at an angle of divergence to the direction of airflow, said diverging section terminating in a stepwise expansion in the cross-sectional flow area, as viewed in a direction perpendicular to the direction of airflow through the ejector outlet nozzle.
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公开(公告)号：EP2935900A1
公开(公告)日：2015-10-28
申请号：EP12813860.9
申请日：2012-12-21
申请人： Xerex AB
发明人： TELL, Peter
摘要： So as to reduce its size, the invention provides a multistage ejector for generating a vacuum across a first, drive stage comprising a drive nozzle array for generating drive flow of air from a compressed air source, the drive nozzle array including two or more nozzles arranged to feed respective air jets together substantially directly into a common outlet of the drive stage so as to entrain air in a volume surrounding the air jets into the drive flow in order to generate a vacuum across the drive stage, the outlet of the drive stage being the inlet of a converging-diverging nozzle of a second stage, the converging-diverging nozzle being arranged to direct said air as a second stage air j et substantially directly into an outlet of the second stage so as to entrain air in a volume surrounding the second stage air jet into the flow in order to generate a vacuum across the second stage.
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公开(公告)号：EP2104640B1
公开(公告)日：2013-11-06
申请号：EP08705296.5
申请日：2008-01-09
申请人： Xerex AB
发明人： TELL, Peter
CPC分类号： F04F5/52 , B25J15/0675 , B66C1/0212 , B66C1/0268 , B66C1/0293
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