|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 10 인용 특허 : 6|
In an apparatus and method for ejecting an additive for significantly reducing the drag of a first fluid moving relative to a wall, a drag-reducing substance is conditioned by causing a second fluid, which includes the drag-reducing substance as a dispersed solid, liquid or gas, to flow through a nozzle. The second fluid is then passed by a vortex chamber prior to ejection of the second fluid into the first fluid via an aperture that includes a Coanda surface on a portion thereof. Additional techniques are also disclosed which increase the effectiveness ...
1. A method of ejecting a drag-reducing substance into a first fluid in a manner that avoids disruption and "blow-off" of the first fluid and reduces the rate of diffusion of the drag-reducing substance in the first fluid to thereby increase the effectiveness of the drag-reducing substance in reducing drag of the first fluid in moving relative to a wall, said method comprising the following steps, performed in the order indicated:a) conditioning the drag-reducing substance by causing a second fluid, which includes the drag-reducing substance as a dispers...