公开(公告)号：EP1750018A3

公开(公告)日：2011-12-14

申请号：EP06254002.6

申请日：2006-07-31

申请人： GENERAL ELECTRIC COMPANY

发明人： Bhate, Nitin ,  Hsu, Ming Feng ,  O'Neill, Gregory Allen ,  Deng, Tao ,  Okuyama, Shannon Maile ,  Stein, Judith ,  Turnquist, Norman Arnold ,  Varanasi, Kripa Kiran

IPC分类号： F15D1/06 ,  F01D5/28

CPC分类号： F01D5/286 ,  F05D2220/31 ,  F05D2220/36 ,  F05D2300/512 ,  F15D1/065 ,  Y02T50/672 ,  Y02T50/673

摘要： Articles resistant to wetting by impinging droplets of liquid are presented, as well as a method for resisting wetting of an article by impinging droplets of liquid. For example, an article (300) comprises a surface portion (320) oriented to intercept droplets (310) of a liquid impinging upon the article (300). This surface portion (320) comprises a plurality of surface features (330), wherein the plurality of surface features (330) has a median size, a , a median depth, h , and a median spacing, b . The parameters a , b , and h are selected to generate, in response to a droplet of the liquid impinging upon the surface portion (320) at a relative velocity v , a back pressure that is greater than a Bernoulli pressure generated by the drop upon impact on the surface portion (320). The method comprises providing a surface portion (320) oriented to intercept incoming droplets (310) of a liquid, the surface portion (320) comprising a plurality of features (330) so disposed on the surface to generate, in response to a drop of liquid impinging upon the surface portion (320) at a relative velocity of at least 5 m/s, a back pressure that is greater than a Bernoulli pressure generated by the drop upon impact on the surface portion (320); and exposing the surface portion (320) to droplets (310) of liquid moving at a velocity of at least about 5 m/s relative to the surface portion (320) so that the droplets (310) impinge upon the surface portion (320).

公开(公告)号：EP1750018A2

公开(公告)日：2007-02-07

申请号：EP06254002.6

申请日：2006-07-31

申请人： General Electric Company

发明人： Bhate, Nitin ,  Hsu, Ming Feng ,  O'Neill, Gregory Allen ,  Deng, Tao ,  Okuyama, Shannon Maile ,  Stein, Judith ,  Turnquist, Norman Arnold ,  Varanasi, Kripa Kiran

IPC分类号： F15D1/06

CPC分类号： F01D5/286 ,  F05D2220/31 ,  F05D2220/36 ,  F05D2300/512 ,  F15D1/065 ,  Y02T50/672 ,  Y02T50/673

摘要： Articles resistant to wetting by impinging droplets of liquid are presented, as well as a method for resisting wetting of an article by impinging droplets of liquid. For example, an article (300) comprises a surface portion (320) oriented to intercept droplets (310) of a liquid impinging upon the article (300). This surface portion (320) comprises a plurality of surface features (330), wherein the plurality of surface features (330) has a median size, a , a median depth, h , and a median spacing, b . The parameters a , b , and h are selected to generate, in response to a droplet of the liquid impinging upon the surface portion (320) at a relative velocity v , a back pressure that is greater than a Bernoulli pressure generated by the drop upon impact on the surface portion (320). The method comprises providing a surface portion (320) oriented to intercept incoming droplets (310) of a liquid, the surface portion (320) comprising a plurality of features (330) so disposed on the surface to generate, in response to a drop of liquid impinging upon the surface portion (320) at a relative velocity of at least 5 m/s, a back pressure that is greater than a Bernoulli pressure generated by the drop upon impact on the surface portion (320); and exposing the surface portion (320) to droplets (310) of liquid moving at a velocity of at least about 5 m/s relative to the surface portion (320) so that the droplets (310) impinge upon the surface portion (320).

摘要翻译： 提出了通过冲击液滴的方式抵抗润湿的制品，以及通过冲击液滴来抵抗制品的润湿的方法。 例如，制品（300）包括定向成拦截撞击物品（300）的液体的液滴（310）的表面部分（320）。 该表面部分（320）包括多个表面特征（330），其中多个表面特征（330）具有中值大小a，中位深度h和中间间距b。 选择参数a，b和h以响应于以相对速度v撞击在表面部分（320）上的液体的液滴，产生大于由下降所产生的伯努利压力的背压 对表面部分（320）的影响。 该方法包括提供定向成拦截液体的进入液滴（310）的表面部分（320），所述表面部分（320）包括多个特征（330），所述多个特征（330）设置在所述表面上，以响应于一滴 液体以至少5m / s的相对速度撞击在表面部分（320）上，背压大于在撞击表面部分（320）时由下落产生的伯努利压力; 并且将所述表面部分（320）暴露于相对于所述表面部分（320）以至少约5m / s的速度移动的液体的液滴（310），使得所述液滴（310）撞击在所述表面部分（320）上， 。