|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||277/400 ; 277/096.1 ; 277/096 ; 277/399|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 24 인용 특허 : 6|
The present invention provides a face seal with spiral grooves comprising: a rotating ring including a sealing face; a stationary ring including a sealing face; the face is confronted with the face of the rotating ring to form a circular interface having a circle center; the faces of the rings can rotate relatively to each other; two spiral groove sets are provided at least on one of the faces of the rotating and the stationary rings, wherein one set disposed on the high pressure side, i.e. at the upstream, and the other set disposed on the low pressure ...
[ What is claimed is:] [1.] A face seal with spiral grooves which is used on a rotating shaft of a machine, comprising:a rotating ring including a sealing face;a stationary ring including a sealing face; the sealing face of the stationary ring is confronted with the face of the rotating ring to form an annular sealing interface; the interface has a high pressure side, being an upstream side, and a low pressure side, being a downstream side;sealing fluid with low viscosity is in the interface;the face of the rotating ring can rotate relatively to the face...