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公开(公告)号：US11530758B2
公开(公告)日：2022-12-20
申请号：US17457143
申请日：2021-12-01
申请人： SMC CORPORATION
发明人： Toru Nakayama , Koji Sugano , Yasuhiro Ushijima
IPC分类号： F16K31/122 , F04F5/52 , F04F5/20 , F04F5/44
摘要： In a vacuum ejector provided with a seal valve mechanism between a vacuum generation mechanism and a break flow path, the seal valve mechanism includes a valve plug that is biased toward a sealing opening from the break flow path side to block the seal opening, and is configured to open the seal opening by moving the valve plug away from the seal opening using a piston portion that operates according to supply air supplied from the vacuum generation mechanism.
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公开(公告)号：US11103824B2
公开(公告)日：2021-08-31
申请号：US16324293
申请日：2017-07-03
申请人： VTEC CO., LTD.
发明人： Ho-Young Cho
摘要： Disclosed is a compact vacuum pump including a housing having an internal vacuum chamber, an ejector pump axially mounted in the vacuum chamber, and an air filter coaxially mounted on the ejector pump. The housing has two separate compressed air supply lines one of which is a vacuum creation line extending to the inlet port of the ejector pump via a first supply line and the other of which is a vacuum release line extending to a gap between the ejector pump and the air filter via a second supply line. The vacuum pump is of a coaxial arrangement type and has a vacuum release function and a filter cleaning function.
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公开(公告)号：US10900500B2
公开(公告)日：2021-01-26
申请号：US15489797
申请日：2017-04-18
摘要： An ejector for a refrigerating machine having a main body crossed by a conduit for passage of refrigerant fluid and having a compartment which includes a seating, which is in communication with the conduit, and a mouth for inlet of refrigerant fluid; a nozzle which can be coupled with the seating and has an internal hole for passage of the refrigerant fluid, and a shutter having an end which can be coupled with the hole to close the hole.
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公开(公告)号：US10408234B2
公开(公告)日：2019-09-10
申请号：US15319398
申请日：2015-06-22
申请人： ONISHI TEKNIK AB
发明人： Daniel Onishi
摘要： A multi-stage ejector is provided for producing vacuums in an industrial process and includes at least two ejector units axially arranged at a predetermined distance apart in an ejector housing. Each of the at least two ejector units includes at least two parallelly arranged hollow feed-throughs for compressed air, including inlet and outlet nozzles and at least one hollow feed-through for vacuum. Each of the at least two ejector units is configured as a part produced from one piece.
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公开(公告)号：US10260502B2
公开(公告)日：2019-04-16
申请号：US15126875
申请日：2014-04-07
申请人： Ateliers Busch SA
IPC分类号： F03C2/00 , F03C4/00 , F04C2/00 , F04C25/02 , F04C23/00 , F04C28/06 , F04C18/16 , F04F5/20 , F04F5/54 , F04F5/52
摘要： The present invention relates to a pumping method in a pumping system (SP) comprising: a primary dry screw-type vacuum pump (3) with a gas entry orifice (2) connected to a vacuum chamber (1) and a gas exit orifice (4) leading into a conduit (5) before coming out into the gas outlet (8) of the pumping system (SP), a non-return valve (6) positioned in the conduit (5) between the gas exit orifice (4) and the gas outlet (8), and an ejector (7) connected in parallel to the non-return valve (6). According to this method, the primary dry screw-type vacuum pump (3) is put into operation in order to pump the gases contained in the vacuum chamber (1) through the gas exit orifice (4); in a simultaneous way, the ejector (7) is fed with working fluid, and the ejector (7) continues to be fed with working fluid all the time that the primary dry screw-type vacuum pump (3) pumps the gases contained in the vacuum chamber (1) and/or all the time that the primary dry screw-type vacuum pump (3) maintains a defined pressure in the vacuum chamber (1). The present invention also relates to a pumping system (SP) able to be used for implementing this method.
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公开(公告)号：US10221867B2
公开(公告)日：2019-03-05
申请号：US14565088
申请日：2014-12-09
申请人： Keith Hampton , David Fletcher , Brian M. Graichen , Rex Bravo , James H. Miller , Matt Gilmer , Andrew Niedert
发明人： Keith Hampton , David Fletcher , Brian M. Graichen , Rex Bravo , James H. Miller , Matt Gilmer , Andrew Niedert
摘要： An aspirator for creating vacuum is disclosed that includes a housing defining a fluid passageway with a first tapering portion and a second tapering portion. Each tapering portion has a larger internal opening and a smaller internal opening, the smaller openings facing one another. The aspirator includes a gate positioned between and in fluid communication with the first and second tapering portions, the gate having a first Venturi tube with a Venturi opening creating vacuum when fluid flows in a direction and a second Venturi tube with a Venturi opening that creates vacuum when fluid flows in the opposite direction. The Venturi openings are in fluid communication with a suction port, and the first and second Venturi tubes may provide different mass flow rates through the aspirator. An engine system having an aspirator with a gate having a first bore and a second bore and an actuator is also disclosed.
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公开(公告)号：US20170089339A1
公开(公告)日：2017-03-30
申请号：US15126875
申请日：2014-04-07
申请人： Ateliers Busch SA
CPC分类号： F04C25/02 , F04C18/16 , F04C23/005 , F04C28/06 , F04C28/065 , F04C2210/221 , F04C2210/225 , F04C2220/12 , F04C2220/30 , F04F5/20 , F04F5/52 , F04F5/54
摘要： The present invention relates to a pumping method in a pumping system (SP) comprising: a primary dry screw-type vacuum pump (3) with a gas entry orifice (2) connected to a vacuum chamber (1) and a gas exit orifice (4) leading into a conduit (5) before coming out into the gas outlet (8) of the pumping system (SP), a non-return valve (6) positioned in the conduit (5) between the gas exit orifice (4) and the gas outlet (8), and an ejector (7) connected in parallel to the non-return valve (6). According to this method, the primary dry screw-type vacuum pump (3) is put into operation in order to pump the gases contained in the vacuum chamber (1) through the gas exit orifice (4); in a simultaneous way, the ejector (7) is fed with working fluid, and the ejector (7) continues to be fed with working fluid all the time that the primary dry screw-type vacuum pump (3) pumps the gases contained in the vacuum chamber (1) and/or all the time that the primary dry screw-type vacuum pump (3) maintains a defined pressure in the vacuum chamber (1). The present invention also relates to a pumping system (SP) able to be used for implementing this method.
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公开(公告)号：US09551359B2
公开(公告)日：2017-01-24
申请号：US14129605
申请日：2012-06-15
申请人： Jorg Koith , Lothar Maigre
发明人： Jorg Koith , Lothar Maigre
IPC分类号： F04F5/52 , F04F5/46 , B60K15/035
CPC分类号： F04F5/52 , B60K15/035 , F04F5/461
摘要： The invention relates to a device (6) for pressure-dependent opening of a suction intake (10), comprising a suction jet pump (11), comprising a feed line (12), an outlet line (13) and the suction intake (10); a valve body (15), displaceably arranged inside the feed line (12) in the delivery direction (14) of the suction jet pump (11) and having an effective area (16) exposed to the feed pressure of the suction jet pump (11); and a spring element (17), arranged between the feed line (12) and the valve body (15), for applying a force in opposition to the feed pressure inside the feed line (12); wherein the effective area (16) of the valve body (15), and the spring element (17) are designed so that the valve body (15) closes the suction intake (10) so that it is fluid-tight below a predefined pressure inside the feed line (12) and opens said intake when the predefined pressure inside the feed line (12) is exceeded. The invention further relates to a fuel tank, comprising a device (6) for pressure-dependent opening of a suction intake (10).
摘要翻译： 本发明涉及一种用于吸入口（10）的压力依赖性打开的装置（6），其包括吸入喷射泵（11），其包括进料管线（12），出口管线（13）和吸入口 10）; 一个在抽吸喷射泵（11）的输送方向（14）内位于输送管线（12）的内部并且具有暴露于吸入喷射泵的进料压力的有效区域（16）的阀体（15） 11）; 以及布置在进料管线（12）和阀体（15）之间的弹簧元件（17），用于施加与供给管线（12）内部的进料压力相反的力; 其中所述阀体（15）的有效区域（16）和所述弹簧元件（17）被设计成使得所述阀体（15）关闭所述吸入口（10），使得所述抽吸入口（10）的液密性低于预定压力 在进料管线（12）内部并且当超过进料管线（12）内的预定压力时打开所述进料口。 本发明还涉及一种燃料箱，包括用于吸入口（10）的压力依赖性打开的装置（6）。
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9.发明授权Assembly of venturi-effect vacuum generator modules, and module for said assembly 有权文丘里效应真空发生器模块的组装和用于所述组件的模块公开(公告)号：US09334128B2
公开(公告)日：2016-05-10
申请号：US13984812
申请日：2012-02-29
申请人： Pierre Milhau , Michel Cecchin
发明人： Pierre Milhau , Michel Cecchin
CPC分类号： B65G47/917 , B65G47/91 , B66C1/0268 , F04F5/20 , F04F5/52 , F15B13/0817 , F15B13/0857 , H04L12/413 , Y10T137/87885
摘要： A vacuum generator module having a substantially rectangular box housing electronic controls for controlling and monitoring the operation of pneumatic vacuum generators and their electrical connections with an electrical power supply and external control members, including an input connector and an output connector installed in one of the faces of the box. The first module is a master module that includes a microcontroller adapted to the communications protocol first of a fieldbus present in a vacuum handling machine incorporating the first module, and secondly of a bus that is dedicated to the other modules. Each of the other modules is a slave module including a microcontroller adapted to the communications protocol of the dedicated bus.
摘要翻译： 一种真空发生器模块，其具有容纳用于控制和监测气动真空发生器及其与电源和外部控制构件的电气连接的操作的电子控制器的电子控制器，包括输入连接器和安装在一个面中的输出连接器 的盒子。 第一模块是主模块，其包括适于通信协议的微控制器，首先是存在于并入第一模块的真空处理机中的现场总线，其次是专用于其它模块的总线。 每个其他模块是从模块，其包括适于专用总线的通信协议的微控制器。
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公开(公告)号：US20150017025A1
公开(公告)日：2015-01-15
申请号：US14378464
申请日：2013-02-11
申请人： J. Schmatz GmbH
发明人： Thomas Holecek , Thomas Eisele , Harald Kuolt , Christian Frey
IPC分类号： F04F5/52
CPC分类号： B25J19/02 , B25J15/0616 , B25J19/06 , B65G47/91 , B65G47/917 , F04F5/20 , F04F5/52
摘要： The present invention is directed toward a method for operating a vacuum generator using pressure fluid to generate the vacuum. The vacuum generator has a pressure port for pressure fluid supply, and a suction point. During a work cycle, the pressure fluid supply is activated at least once and then deactivated again at least once. An active period is measured during which the pressure fluid supply is activated during the work cycle.
摘要翻译： 本发明涉及一种使用压力流体操作真空发生器以产生真空的方法。 真空发生器具有用于压力流体供应的压力端口和抽吸点。 在工作循环期间，压力流体供应至少被激活一次，然后再次停用至少一次。 测量在工作循环期间激活压力流体供应的活动时段。
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