|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||285/41 ; 285/47 ; 285/190|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 6 인용 특허 : 2|
A pressure-tight, rotary pipe coupling joins rotating, high temperature fluid transmission lines. Pressure seals of the coupling are maintained at a temperature lower than that of the high temperature or primary transmitted fluid by thermally insulating the seals from the high temperature fluid and by pumping a fluid coolant through annular cavities located adjacent the seals. A balanced pressure structure substantially eliminates thrust forces between the coupling members and reduces rotating friction.
A rotary pipe joint comprising: (a) a first tubular member having a transversely disposed fluid transmission port, (b) a second tubular member disposed within said first tubular member and coaxially rotatable relative to said first tubular member, (c) fluid transmission means having an axis coplanar with the axis of said fluid transmission port and connecting the interior of said second tubular member to said fluid transmission port, (d) first pressure sealing means disposed between said first tubular member and said second tubular member to one side of ...