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公开(公告)号：US20220145886A1
公开(公告)日：2022-05-12
申请号：US17439018
申请日：2019-03-14
Applicant: ATELIERS BUSCH SA
Inventor： Théodore Iltchev , Stéphane Varrin , Didier Müller
IPC: F04C18/16
Abstract: A dry pump for gases comprises a first rotor (1) comprising a first lobe portion (1A) and a first screw (16), as well as a second rotor (2) comprising a second lobe portion (2A) and a second screw (2B). A casing delimits an internal volume in which are located together the first and second screws (1B, 2B) and the first and second lobe portions (1A, 2A). Each of the first and second screws (1B, 2B) comprises a threading invariable along its length. The first and second rotors (1, 2) turn in opposite directions and are located in successive configurations. In a first configuration of the rotors, the first and second lobe portions (1A, 2A), a portion of the first screw (16), a portion of the second screw (2B) and the casing together delimit a chamber (30) which is closed. In a second configuration of the rotors, the chamber (30) has a smaller capacity than in the first configuration. In a third configuration of the rotors, the chamber (30) is displaced entirely at the first and second screws (1B, 2B) and isolated from the lobe portions.
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公开(公告)号：US20170298935A1
公开(公告)日：2017-10-19
申请号：US15512883
申请日：2014-09-26
Applicant: ATELIERS BUSCH SA
Inventor： Didier MÜLLER , Jean-Eric LARCHER , Théodore ILTCHEV
CPC classification number: F04C11/003 , F04C2/16 , F04C15/06 , F04C18/16 , F04C23/001 , F04C23/005 , F04C25/02 , F04C28/02 , F04C28/06 , F04C2220/12
Abstract: The present invention relates to a pumping system to generate a vacuum (SP), comprising a main vacuum pump which is a dry screw pump (3) having a gas suction inlet (2) connected to a vacuum chamber (1) and a gas discharge outlet (4) leading into a gas evacuation conduit (5) in the direction of a gas exhaust outlet (8) outside the pumping system. The pumping system comprises a non-return valve (6) positioned between the gas discharge outlet (4) and the gas exhaust outlet (8), and an auxiliary vacuum pump (7) connected in parallel to the non-return valve. In a pumping method by means of this pumping system (SP), the main vacuum pump (3) is started up in order to pump the gases contained in the vacuum chamber (1) and to discharge these gases through its gas discharge outlet (4), simultaneously to which the auxiliary vacuum pump (7) is started up. Moreover the auxiliary vacuum pump (7) continues to pump all the while that the main vacuum pump (3) pumps the gases contained in the vacuum chamber (1) and/or all the while that the main vacuum pump (3) maintains a defined pressure in the vacuum chamber (1).
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公开(公告)号：USD765147S1
公开(公告)日：2016-08-30
申请号：US35500438
申请日：2015-12-15
Applicant: ATELIERS BUSCH SA
Designer： Christian Schaller , Michel Boulicaut , Yannick Laversin
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公开(公告)号：US20150204332A1
公开(公告)日：2015-07-23
申请号：US14382810
申请日：2013-03-05
Applicant: Ateliers Busch SA
Inventor： Paul Alers
Abstract: A pumping installation includes at least one first positive-displacement machine and one second positive-displacement machine, as well as a control module, in which installation a gas is evacuated from an enclosed volume by means of the first positive-displacement machine and/or the second positive-displacement machine. The pumping installation includes at least one control valve controlled by the control module and a pressure sensor for sensing the value of the pressure at the outlet of the first positive-displacement machine and/or a temperature sensor for sensing the value of the temperature at the outlet of the first positive-displacement machine in order to control the flow of gas between the enclosed volume and the outlet of the pumping installation.
Abstract translation: 泵送装置包括至少一个第一正排量机器和一个第二正排量机器以及控制模块，其中通过第一正排量机器从封闭容积中抽出气体，和/或 第二台正排量机。 泵送装置包括由控制模块控制的至少一个控制阀和用于感测第一正排量机器出口处的压力值和/或温度传感器的压力传感器，用于感测在 出口处，以控制封闭容积与抽水设备出口之间的气体流量。
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公开(公告)号：US11920592B2
公开(公告)日：2024-03-05
申请号：US17439018
申请日：2019-03-14
Applicant: ATELIERS BUSCH SA
Inventor： Théodore Iltchev , Stéphane Varrin , Didier Müller
CPC classification number: F04C23/005 , F04C18/084 , F04C18/126 , F04C18/16 , F04C25/02 , F04C2220/12 , F04C2240/20 , F04C2240/30 , F04C2250/20
Abstract: A dry pump for gases comprises a first rotor (1) comprising a first lobe portion (1A) and a first screw (1B), as well as a second rotor (2) comprising a second lobe portion (2A) and a second screw (2B). A casing delimits an internal volume in which are located together the first and second screws (1B, 2B) and the first and second lobe portions (1A, 2A). Each of the first and second screws (1B, 2B) comprises a threading invariable along its length. The first and second rotors (1, 2) turn in opposite directions and are located in successive configurations. In a first configuration of the rotors, the first and second lobe portions (1A, 2A), a portion of the first screw (1B), a portion of the second screw (2B) and the casing together delimit a chamber (30) which is closed. In a second configuration of the rotors, the chamber (30) has a smaller capacity than in the first configuration. In a third configuration of the rotors, the chamber (30) is displaced entirely at the first and second screws (1B, 2B) and isolated from the lobe portions.
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Patent Agency Ranking
公开(公告)号：US11204036B2
公开(公告)日：2021-12-21
申请号：US14382810
申请日：2013-03-05
Applicant: Ateliers Busch SA
Inventor： Paul Alers
IPC: F04C29/04 , F04C18/10 , F04C28/24 , F04C18/16 , F04B37/14 , F04C28/02 , F04C23/00 , F04C25/02 , F04B41/06 , F04B37/02 , F04C18/12 , F04C18/344
Abstract: A pumping installation includes at least one first positive-displacement machine and one second positive-displacement machine, as well as a control module, in which installation a gas is evacuated from an enclosed volume by means of the first positive-displacement machine and/or the second positive-displacement machine. The pumping installation includes at least one control valve controlled by the control module and a pressure sensor for sensing the value of the pressure at the outlet of the first positive-displacement machine and/or a temperature sensor for sensing the value of the temperature at the outlet of the first positive-displacement machine in order to control the flow of gas between the enclosed volume and the outlet of the pumping installation.
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7.发明授权公开(公告)号：US10808730B2
公开(公告)日：2020-10-20
申请号：US15513574
申请日：2014-10-02
Applicant: Ateliers Busch SA
Inventor： Didier Müller , Jean-Eric Larcher , Théodore Iltchev
Abstract: The present invention relates to a pumping system to generate a vacuum (SP), comprising a main vacuum pump which is a claw pump (3) having a gas suction inlet (2) connected to a vacuum chamber (1) and a gas discharge outlet (4) leading into a gas evacuation conduit (5) in the direction of a gas exhaust outlet (8) outside the pumping system. The pumping system comprises a non-return valve (6) positioned between the gas discharge outlet (4) and the gas exhaust outlet (8), and an auxiliary vacuum pump (7) connected in parallel to the non-return valve. In a pumping method by means of this pumping system (SP), the main vacuum pump (3) is started up in order to pump the gases contained in the vacuum chamber (1) and to discharge these gases through its gas discharge outlet (4), simultaneously to which the auxiliary vacuum pump (7) is started up. Moreover the auxiliary vacuum pump (7) continues to pump all the while that the main vacuum pump (3) pumps the gases contained in the vacuum chamber (1) and/or all the while that the main vacuum pump (3) maintains a defined pressure in the vacuum chamber (1).
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公开(公告)号：US10760573B2
公开(公告)日：2020-09-01
申请号：US15321839
申请日：2014-06-27
Applicant: Ateliers Busch SA
Inventor： Didier Müller , Jean-Eric Larcher , Théodore Iltchev
IPC: F04C14/22 , F04C14/28 , F04C14/24 , F04C15/06 , F04C23/00 , F04C25/02 , F04C28/02 , F04C28/24 , F04C18/344 , F04C18/34 , F04C29/00 , F04C29/02 , F04C29/12 , F04C28/06
Abstract: The present invention relates to a pumping method in a pumping system (SP, SPP) comprising: a main lubricated rotary vane vacuum pump (3) with a gas inlet port (2) connected to a vacuum chamber (1) and a gas outlet port (4) leading into a conduit (5) before coming out into the gas outlet (8) of the pumping system (SP, SPP), a non-return valve (6) positioned in the conduit (5) between the gas outlet port (4) and the gas outlet (8), and an auxiliary lubricated rotary vane vacuum pump (7) connected in parallel to the non-return valve (6). According to this method, the main lubricated rotary vane vacuum pump (3) is activated in order to pump the gases contained in the vacuum chamber (1) through the gas outlet port (4), simultaneously the auxiliary lubricated rotary vane vacuum pump (7) is activated and continues to operate all the while that the main lubricated rotary vane vacuum pump (3) pumps the gases contained in the vacuum chamber (1) and/or all the while that the main lubricated rotary vane vacuum pump (3) maintains a defined pressure in the vacuum chamber (1). The present invention also relates to a pumping system (SP, SPP) able to be used to implement this method.
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公开(公告)号：US20170045051A1
公开(公告)日：2017-02-16
申请号：US15306175
申请日：2014-05-01
Applicant: Ateliers Busch SA
Inventor： Didier MÜLLER , Jean-Eric LARCHER , Théodore ILTCHEV
Abstract: The present invention relates to a pumping method in a pumping system (SP, SPP) comprising: a primary lubricated rotary vane vacuum pump (3) with a gas inlet port (2) connected to a vacuum chamber (1) and a gas outlet port (4) leading into a conduit (5) before coming out into the gas outlet (8) of the pumping system (SP, SPP), a non-return valve (6) positioned in the conduit (5) between the gas outlet port (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 lubricated rotary vane vacuum pump (3) is set into action in order to pump the gases contained in the vacuum chamber (1) through the gas outlet port (4). Simultaneously the ejector (7) is fed with working fluid, and the ejector (7) continues to be fed with working fluid all the while that the primary lubricated rotary vane vacuum pump (3) pumps the gases contained in the vacuum chamber (1) and/or all the while that the primary lubricated rotary vane vacuum pump (3) maintains a defined pressure in the vacuum chamber (1). The present invention also relates to a pumping system (SP, SPP) able to be used to implement this method.
Abstract translation: 本发明涉及一种泵送系统（SP，SPP）中的泵送方法，包括：具有连接到真空室（1）的气体入口（2）的主润滑旋转叶片真空泵（3）和气体出口 （4）在进入泵送系统（SP，SPP）的气体出口（8）之前导入导管（5）中;定位在导管（5）中的止回阀（6）之间的气体出口 （4）和气体出口（8）以及与止回阀（6）并联连接的喷射器（7）。 根据该方法，主润滑旋转叶片真空泵（3）被动作以通过气体出口（4）泵送包含在真空室（1）中的气体。 同时，喷射器（7）被供给工作流体，并且喷射器（7）继续被供给工作流体，同时主润滑旋转叶片真空泵（3）泵送包含在真空室（1）中的气体， 和/或所有主要润滑的旋转叶片真空泵（3）在真空室（1）中保持限定的压力。 本发明还涉及能够用于实现该方法的泵送系统（SP，SPP）。
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公开(公告)号：US12066023B2
公开(公告)日：2024-08-20
申请号：US17914533
申请日：2021-05-10
Applicant: Ateliers Busch SA
Inventor： Didier Müller , Théodore Iltchev , Artur Bachmann
CPC classification number: F04C18/126 , F04C18/16 , F04C29/005 , F04C18/084 , F04C2220/12 , F04C2240/20 , F04C2240/80
Abstract: The present invention concerns a dry vacuum pump comprising:
a drive device (1) comprising a drive shaft (3) at one end of which is fixed at least one drive wheel (4) provided to set in motion at least one belt (5);
at least two parallel rotors (7, 8) each having a shaft (9, 10) provided with a rotor element (11, 12), this shaft (9, 10) being able to be driven in rotation by the belt (5) and being equipped at one of its axial ends with a toothed wheel (13, 14),
this pump having the special features that:
the drive wheel (4) and the belt (5) are smooth;
each shaft (9, 10) of the rotor (7, 8) comprises at least one smooth section (16, 17) arranged to co-operate with the belt (5), and
the toothed wheels (13, 14) of the shafts (9, 10) of the rotor (7, 8) are dimensioned and arranged to mesh with one another.
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