| 发明名称 | Air duct and air flow system | ||
| 摘要 | An air duct of this disclosure includes: a tubular duct body formed from a non-air-permeable material; and a tubular opening end member formed from an air-permeable material. The opening end member is integrated with an end portion of the duct body so as to extend a duct wall of the duct body. D representing a diameter of the opening end member and L representing a length thereof satisfy a relationship 0.1D≦L≦1.5D. An air permeability of the air-permeable material is in a range of 0.3 to 100 sec/300 cc. | ||
| 申请公布号 | US9574790(B2) | 申请公布日期 | 2017.02.21 |
| 申请号 | US201514867560 | 申请日期 | 2015.09.28 |
| 申请人 | TIGERS POLYMER CORPORATION | 发明人 | Hasegawa Minoru;Okabe Seisuke |
| 分类号 | F24F13/24 | 主分类号 | F24F13/24 |
| 代理机构 | Rankin, Hill & Clark LLP | 代理人 | Rankin, Hill & Clark LLP |
| 主权项 | 1. An air duct comprising: a tubular duct body formed from a non-air-permeable material; and a tubular opening end member formed from an air-permeable material, wherein: the opening end member is integrated with an end portion of the duct body so as to extend a duct wall of the duct body; the air duct has an opening at an end of the opening end member, the end of the opening end member being opposite to other end at which the opening end member is integrated with the end portion of the duct body in a direction of an axis of the opening end member; D representing a diameter of the opening end member and L representing a length thereof satisfy a relationship 0.1D≦L≦1.5D; and an air permeability of the air-permeable material is in a range of 0.3 to 100 sec/300 cc. | ||
| 地址 | Osaka JP | ||