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1. 发明授权

US5197637A Pump apparatus for a free-flowing, in particular pasty and/or liquid, product, and dispenser having such a pump apparatus 失效
标题翻译：用于自由流动的PUMP装置，特别是过滤和/或液体，产品和具有这种泵装置的分配器
公开(公告)号：US5197637A
公开(公告)日：1993-03-30
申请号：US680749
申请日：1991-04-05
申请人： Wilhelm K. Naumann
发明人： Wilhelm K. Naumann
IPC分类号： B05B11/00 , B65D47/34
CPC分类号： B05B11/0072 , B05B11/0051 , B05B11/007 , B05B11/3004 , B05B11/3009 , B05B11/3028 , B05B11/3074 , B05B11/3076 , B05B11/3084
摘要： A pump for a free-flowing, in particular pasty or liquid, substance includes a support part, a pump element which has an elastically deformable membrane and can be pressed against the support part in opposition to a restoring force, and a pump chamber, disposed between the pump element and the support part, fluidly connected to an inlet valve and to an outlet aperture by an outlet valve, the outlet aperture passing through the membrane. On a side of the membrance which faces the pump chamber, a disk is provided, the disk together with the membrane forming the outlet valve, the disk being connected to the membrane so that in a closed position the membrane rests against the disk in an area enclosing the outlet aperture, and so that in an open position the membrane is arched upward partly away from the disk by a pressure exerted on it by the free-flowing substance, thereby forming an open connection between the outlet aperture and the pump chamber. The membrane is firmly connected to the disk in a connecting sector enclosing the outlet aperture of the membrane, at least around the major part of its circumference. The disk has at least one passage which connects the pump chamber to a surface area of the disk, which surface area is at least partially enclosed by the connecting sector and faces the membrane. The aperture of the at least one passage which terminates at the surface area of the disk is located a distance away from the outlet aperture in a plan view of the membrane.
摘要翻译：用于自由流动的泵，特别是糊状或液体的物质包括支撑部分，具有可弹性变形的膜并且可以与恢复力相对地压靠支撑部分的泵元件和设置在泵室中的泵室在泵元件和支撑部分之间，通过出口阀流体地连接到入口阀和出口孔，出口孔通过膜。在面向泵室的膜的一侧，设置有盘，盘与膜形成出口阀，盘连接到膜，使得在关闭位置，膜在一个区域中抵靠盘封闭出口孔，并且使得在打开位置，膜通过自由流动物质施加在其上的压力部分地远离盘而向外拱起，从而在出口孔和泵室之间形成开放的连接。至少围绕其圆周的主要部分，隔膜在包围膜的出口孔的连接部分中牢固地连接到盘上。盘具有至少一个通道，其将泵室连接到盘的表面区域，该表面区域至少部分地被连接扇区包围并面向膜。终止于盘的表面区域的至少一个通道的孔径在膜的平面图中离开出口孔距离一定距离。

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