The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2015
Filed:
Jul. 28, 2010
Jianmin Zhang, Chengdu, CN;
Weilin Xu, Chengdu, CN;
Shanjun Liu, Chengdu, CN;
Wei Wang, Chengdu, CN;
Jingxue Qu, Chengdu, CN;
Jun Deng, Chengdu, CN;
Zhong Tian, Chengdu, CN;
Jiangang Chen, Chengdu, CN;
Gang Lei, Chengdu, CN;
Yu Ren, Chengdu, CN;
Jianmin Zhang, Chengdu, CN;
Weilin Xu, Chengdu, CN;
Shanjun Liu, Chengdu, CN;
Wei Wang, Chengdu, CN;
Jingxue Qu, Chengdu, CN;
Jun Deng, Chengdu, CN;
Zhong Tian, Chengdu, CN;
Jiangang Chen, Chengdu, CN;
Gang Lei, Chengdu, CN;
Yu Ren, Chengdu, CN;
Sichuan University, Chengdu, Sichuan Province, CN;
Abstract
An aerated swirling vertical shaft with double volute chambers comprises an upper volute chamber () and a first shrinking section () beneath the upper volute chamber (), a venting passage () outside the upper volute chamber (), a vertical shaft section () beneath the first shrinking section (), as well as an aerated lower volute chamber () and a second shrinking section () communicated with the aerated lower volute chamber () between the first shrinking section () and the vertical shaft section (), wherein the upper end of the aerated lower volute chamber () is connected with the first shrinking section (), the lower end of the second shrinking section () is connected with the vertical shaft section (); the upper end of the venting passage () is communicated with the atmosphere and the lower end is communicated with the aerated lower volute chamber (). The water stream in the vertical shaft can be discharged smoothly and the wall surface of the vertical shaft may avoid being destroyed due to cavitation and cavitation erosion.