专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP3034885A1 CENTRIFUGAL BLOWER AND AIR CONDITIONER PROVIDED WITH SAME 有权
标题翻译：离心风机和空调器提供相同
公开(公告)号：EP3034885A1
公开(公告)日：2016-06-22
申请号：EP14847547.8
申请日：2014-09-12
申请人： Daikin Industries, Ltd.
发明人： OHTAGURO, Ryuusuke
IPC分类号： F04D29/30 , F04D29/66 , F24F1/00
摘要： In a centrifugal fan (51), when an angle defined by a tangential line (L1) to a camber line (CL) at an intersection point (P) between the camber line (CL) and an arc around a rotation axis (A), and a tangential line (L2) to the arc at the intersection point (P) on a blade cross section passing a front edge (61) and a rear edge (62) of a blade (21) is a blade angle (β), the blade (21) has at least one of a decreasing shape and a fixed shape. The decreasing shape is such that the blade angle (β) decreases as the intersection point (P) is shifted toward the rear edge (62) on the camber line (CL) on a front edge (61)-side portion (PL) of a shroud (19)-side blade cross section (S1). The fixed shape is such that the blade angle (β) is fixed, even if the intersection point (P) is shifted toward the rear edge (62) on the camber line (CL) on the front edge (61)-side portion (PL) of the shroud (19)-side blade cross section (S1).
摘要翻译：在离心式风扇（51）中，当在弧线（CL）与绕旋转轴线（A）的圆弧之间的交点（P）处由切线（L1）与弧线（CL），通过叶片（21）的前缘（61）和后缘（62）的叶片截面上的交点（P）的弧的切线（L2）为叶片角度（β），叶片（21）具有减小形状和固定形状中的至少一个。随着交点（P）在弯曲线（CL）的前缘（61）侧部分（PL）处向弯曲线（CL）上的后缘（62）移动，减小的形状使得叶片角度护罩（19）侧叶片横截面（S1）。即使交点（P）向前缘（61）侧部分（P）的外倾线（CL）的后缘（62）侧移动，叶片角度（β）（19）侧叶片横截面（S1）的长度（PL）。

IPRDB

热门服务

关于我们

友情链接

联系方式