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1. 发明申请

US20090196771A1 Pumping device 失效
公开(公告)号：US20090196771A1
公开(公告)日：2009-08-06
申请号：US12319829
申请日：2009-01-13
申请人： Karsten Juterbock , Daniele Foffano , Angelo Basso , Davide Galvani
发明人： Karsten Juterbock , Daniele Foffano , Angelo Basso , Davide Galvani
IPC分类号： F04B17/00
CPC分类号： F04B43/0736 , F04B43/009
摘要： In a pumping device (1) by means of which fluids (10) or pourable media held in a reservoir tank (9) can be pumped to a spray gun (11) in a metered manner, with a piston rod (5) mounted in a housing (2) in an axially movable fashion, with a reciprocating piston (25) attached to its free end, with a piston (7, 8) firmly connected to the piston rod (5) that can be moved between a first and a second housing section (3, 4), and by means of which a first and a second pressure space (21, 21′, 22, 22′) is each enclosed together with the two housing sections (3, 4), with two pressure lines (17, 17′) worked into one each of the two housing sections (3, 4) in such a way that they emerge into one of the two pressure spaces (21, 21′ or 22, 22′), with a working medium (19) pressed through the pressure lines (17, 17′) alternately into the particular pressure space (21, 21′, 22, 22′), by means of which the piston (7, 8) can be driven, with a diaphragm (12, 13) with a central area (14) firmly connected to the piston rod (5) and its outer area (15) firmly connected to the housing (2), and with its flexible ring area (16) provided between the central and the outer areas (14, 15) configured as a compensation and sealing element, and with a pumping space (20) enclosed by the diaphragm (12, 13) and the housing (2), into which the fluid (10) or material is alternately sucked in or pressed out towards the spray gun (11) by the axial movement of the reciprocating piston (25), it should be possible reliably to determine the sealing status of the diaphragm (12, 13) inserted in the pumping device (1) permanently or at least from time to time, in order to be able to shut off the pumping device (1) if necessary if the diaphragm (12, 13) is damaged, so as to prevent contamination or impurities passing between the fluid (10) or material and the hydraulic oil (19).This is achieved in that a control space (31) is formed between the second housing section (3) and the diaphragm (12, 13) in which a negative pressure prevails, and that the negative pressure status of the control space (31) can be monitored from the outside.

2. 发明授权

US08313313B2 Pumping device 失效
标题翻译：抽水装置
公开(公告)号：US08313313B2
公开(公告)日：2012-11-20
申请号：US12319829
申请日：2009-01-13
申请人： Karsten Jüterbock , Daniele Foffano , Angelo Basso , Davide Galvani
发明人： Karsten Jüterbock , Daniele Foffano , Angelo Basso , Davide Galvani
IPC分类号： F04B45/00 , F04B17/00
CPC分类号： F04B43/0736 , F04B43/009
摘要： A pumping device (1) by which fluids held in a reservoir tank (9) can be pumped to a spray gun (11) in a metered manner, with a piston rod (5) mounted in a housing (2) in axially movable fashion, with a reciprocating piston (25) attached thereto, with a piston (7, 8) connected to the piston rod (5) and moved between a first and a second housing sections (3, 4), first and second pressure spaces (21,21′, 22, 22′) enclosed with the two housing sections (3,4), two pressure lines (17, 17′) in each of the housing sections (3, 4) such that emerge into one of the pressure spaces (21, 21′ or 22,22′), a working medium (19) pressed through pressure lines (17, 17′) alternately into a pressure space, by means of which the piston (7, 8) is driven, with a diaphragm a central area (14) connected to the piston rod (5), and its outer area (15) connected to the housing (2), and a flexible ring area (16) between the central and outer areas (14, 15), and a pumping space (20) enclosed by the diaphragm (12, 13) and the housing (2), into which the fluid is alternately sucked in or pressed out towards the spray gun (11) by the axial movement of the piston (25), to determine the sealing status of the diaphragm (12, 13) so as to prevent contamination passing between the fluid (10) and hydraulic oil (19), a control space (31) formed between a housing section (3) and a diaphragm (12,13), and can be monitored.
摘要翻译：泵送装置（1）通过其将保存在储存罐（9）中的流体以计量方式泵送到喷枪（11）中，其中活塞杆（5）以轴向可移动的方式安装在壳体（2）具有连接到其上的往复活塞（25），具有连接到活塞杆（5）并在第一和第二壳体部分（3,4），第一和第二压力空间（21）之间移动的活塞（7,8），21'，22,22'），两个壳体部分（3,4），每个壳体部分（3,4）中的两个压力线（17,17'），以便出现在一个压力空间（21,21'或22,22'），工作介质（19）通过压力管线（17,17'）交替地压入压力空间中，通过该压力空间驱动活塞（7,8），其中连接到活塞杆（5）的中心区域（14）和连接到壳体（2）的外部区域（15）以及在中心区域和外部区域（14,15）之间的柔性环区域（16），以及由直径包围的泵送空间（20）（12,13）和壳体（2），流体被活塞（25）的轴向运动交替地吸入或挤出到喷枪（11）中，以确定隔膜的密封状态（12,13），以防止流体（10）和液压油（19）之间的污染通过，形成在壳体部分（3）和隔膜（12,13）之间的控制空间（31），并且可以是监控。

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