|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||16/2343 ; 16/233.6|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 11 인용 특허 : 7|
A headbox of a paper or board machine having an inlet, a distributor for feeding stock suspension to be distributed over the machine width into the inlet. A turbulence generator downstream of the distributor has a hydraulic diameter of less than 17 mm in the downstream end region. The hydraulic diameter is the diameter of individual channels through the turbulence generator. The turbulence generator has channels or plates that define several channels, each in accordance with the desired hydraulic diameter. Dimensions of the hydraulic diameter are disclos...
[ What is claimed is:] [1.] A headbox for a paper or board machine, wherein the machine has a width direction and the headbox extends across the width direction, the headbox comprising:the headbox having an inlet end, a distributor at the inlet end for feeding stock suspension over the machine width;at least one turbulence generator in the headbox downstream from the distributor in the stock suspension flow direction, the turbulence generator having a downstream end region with a hydraulic diameter d.sub.hydr of less than 17 mm, and wherein the hydraulic...