Patent ID: 6241481
Filing Date: 2001-06-05
Classification: F01P,F02F,F04B,F04D

Abstract:
A water pump comprising:a pump housing having a first housing part and a second housing part removably secured to said first housing part,said housing parts cooperating with one another to define a pump chamber,a rotatable shaft having an outer end extending into said chamber,an annular seal mounted in said housing and encompassing said shaft adjacent to the outer end thereof in water-tight sealed relation therewith,an impeller, andmeans removably securing said impeller to the outer end of said shaft,said second housing part being separable from said first housing part to permit access to said seal, andsaid seal being axially removable over the outer end of said shaft when said impeller is removed and said second housing part is separated from said first housing part,further including an annular adapter secured to said first housing part, said seal being pressed into said adapter, and a bushing sleeved on said shaft between said seal and said impeller and compressed by said impeller to exert an axially directed force against said seal to press said seal more firmly into the adapter.