公开(公告)号：US4447061A

公开(公告)日：1984-05-08

申请号：US385237

申请日：1982-06-04

Applicant: Richard W. Stover ,  Frederick T. Proper ,  Steven A. Young

Inventor： Richard W. Stover ,  Frederick T. Proper ,  Steven A. Young

IPC: C08G63/00 ,  B01J3/03 ,  B01J19/00 ,  B01J19/20 ,  C08G63/78 ,  F16J15/00 ,  F16J15/24 ,  F16J15/40

CPC classification number: F16J15/002 ,  B01J19/002 ,  B01J19/20 ,  Y10S277/904

Abstract: A method and apparatus for preventing fluid leakage through a sealing mechanism of a melt pump into a vessel during the period of establishing a vacuum therein and increasing the viscosity of the material fed thereto. The method includes enclosing in a fluid-tight relationship the area of fluid leakage adjacent the sealing mechanism and reducing the pressure in the enclosed area sufficiently to prevent the fluid from leaking. The apparatus includes a rigid housing which encloses in fluid-tight relationship the area of fluid leakage adjacent the sealing mechanism, a vacuum generating device, and means for connecting the vacuum generating device with the enclosed area.

Abstract translation: 一种在建立真空期间防止流体通过熔体泵的密封机构泄漏到容器中并增加供给的材料的粘度的方法和装置。 该方法包括以密封关系的方式封闭邻近密封机构的流体泄漏区域，并充分减小封闭区域中的压力以防止流体泄漏。 该装置包括刚性壳体，其以与流体密封的关系封闭密封机构附近的流体泄漏区域，真空产生装置以及用于将真空发生装置与封闭区域连接的装置。