首页>
外国专利>
Improvements in Blowing and Exhausting Fans, Mechanical Blowers and Exhausters and in Water Pumps.
Improvements in Blowing and Exhausting Fans, Mechanical Blowers and Exhausters and in Water Pumps.
展开▼
机译:鼓风机和排风机,机械鼓风机和排风机以及水泵的改进。
展开▼
页面导航
摘要
著录项
相似文献
摘要
12,298. Granger, W. A. July 7. Piston pumps; centrifugal pumps; suction pipes. -The efficiency of fans, rotary blowers, and water pumps is increased by delivering the air or water through a taper pipe, the small end A of which is of the same diameter as the delivery aperture of the fan or pump and may have a curved entrance F ; the taper may be broken by a parallel piece K, Fig. 2. The taper piece may be inserted in the delivery pipe some distance from the fan or pump, or attached to the inlet of a fan.
展开▼