公开(公告)号：US06361289B1

公开(公告)日：2002-03-26

申请号：US09242392

申请日：1999-11-24

申请人： Rolf Hennes ,  Pavel Novak ,  Beat Krattiger ,  Joachim Willner ,  Paul Farner ,  Hugo Rudolf Lampert ,  Martin Wittwer ,  Jürgen Kraft-Kivikoski

发明人： Rolf Hennes ,  Pavel Novak ,  Beat Krattiger ,  Joachim Willner ,  Paul Farner ,  Hugo Rudolf Lampert ,  Martin Wittwer ,  Jürgen Kraft-Kivikoski

IPC分类号： F04B4900

CPC分类号： F04C14/26 ,  F04C2/084 ,  F04C2/16

摘要： A medical gear pump is used for suction and irrigation, in particular for endoscopy or the laboratory, and it has two meshing gears as conveying elements, one of which is joined to a drive mechanism. The gears are received in non-journal-mounted fashion in openings, and are each equipped with a helical tooth set. It is proposed to configure the helical tooth set such that, when viewed along a surface line of said gears, at least two tooth tip/root contact points of said meshing gears are present, and a contour of tooth spaces of the one gear is matched to the teeth of the other gear in such a way that when a tooth has completely penetrated into the tooth space, its tooth tip almost completely fills up the tooth space radially inside the pitch circle.

摘要翻译： 医用齿轮泵用于吸入和冲洗，特别是用于内窥镜检查或实验室，它具有两个啮合齿轮作为输送元件，其中之一连接到驱动机构。 齿轮以非轴颈安装方式接纳在开口中，并且各自配备有螺旋齿组。 提出了构成螺旋齿组件，使得当沿着所述齿轮的表面线观察时，存在所述啮合齿轮的至少两个齿尖/根接触点，并且一个齿轮的齿隙轮廓匹配 以使得当齿已经完全穿入牙齿空间时，其齿尖几乎完全填满节圆内径向的齿空间。