|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||277/367; 277/369; 277/400|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 34 인용 특허 : 20|
A mechanical face seal includes a pair of relatively rotatable seal rings having opposing seal faces which define a sealing region therebetween. The sealing region extends radially between the inside and outside diameters of the seal rings to seal a fluid in a sealing chamber near one diameter thereof. The seal faces are provided with hydrodynamic lift features near the sealing chamber to provide a lift load that permits a liquid between the seal faces to form a fluid film therebetween. The hydrodynamic lift features primarily function to hydrodynamicall...
1. In a mechanical seal for sealing an annular sealing space between a housing and an axially-elongate rotatable shaft, said mechanical seal including a first seal ring mounted non-rotatably to said housing and a second seal ring rotatably connected to said shaft so as to rotate therewith, at least one of said first and second seal rings being axially movable relative to the other of said first and second seal rings and having a biasing arrangement which biases said one seal ring axially toward the other, said first and second seal rings having opposing ...