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:
Mar. 24, 2020
Filed:
Nov. 19, 2015
Taiyuan University of Technology, Shanxi, CN;
Ziming Kou, Taiyuan, CN;
Juan Wu, Taiyuan, CN;
Guijun Gao, Taiyuan, CN;
Shanrong Da, Taiyuan, CN;
Jing Zhang, Taiyuan, CN;
Yanfei Kou, Taiyuan, CN;
Ting Li, Taiyuan, CN;
Sheng Li, Taiyuan, CN;
Jin Wei, Taiyuan, CN;
TAIYUAN UNIVERSITY OF TECHNOLOGY, Shanxi, CN;
Abstract
There is provided a ventilation apparatus with counter-rotating impellers driven by long shaft, wherein an electric motor and a gearbox are placed outside the air duct by using a long shaft with an internally disposed slim shaft extending therefrom, and are connected with the first stage impeller and second stage impeller inside the air duct by using the long shaft and slim shaft extending therefrom. In this ventilation apparatus with counter-rotating impellers, the components of the ventilation apparatus are placed inside and outside the air duct respectively by using the transmission shaft, which is convenient for maintenance and operation. By remotely arranging the impellers at an axial distance, the hub of the impellers will no longer be affected by an internally disposed electric motor, so as to reduce the ventilation resistance to ventilation. The impellers can be switched between the single impeller rotation and the counter rotation of two impellers.