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:
May. 17, 2022
Filed:
Jun. 09, 2020
Zhejiang University, Hangzhou, CN;
Shuyou Zhang, Hangzhou, CN;
Zili Wang, Hangzhou, CN;
Guodong Yi, Hangzhou, CN;
Mengyu Fu, Hangzhou, CN;
ZHEJIANG UNIVERSITY, Hangzhou, CN;
Abstract
An elastic double-support variable-diameter mandrel for bending of an aircraft engine-specific metal conduit includes a frame receiving pipe, an elastic outer frame and an inner hydraulic component. In the inner hydraulic component, an inner chamber of an elastic membrane is filled with a liquid, a tail end of the elastic membrane is provided with an opening, the opening communicates with a first end of a liquid delivery pipe through a pipe joint, and a second end of the liquid delivery pipe is connected to an external hydraulic system. The elastic outer frame is a flexible single unit composed of a tie rod and an elastic mesh structure. The tie rod includes an elastic traction segment, a straight segment and a pull ring. The elastic mesh structure includes wavy metal strip circumferences and anti-fatigue elastic connectors. The frame receiving pipe is sleeved outside the elastic outer frame/inner hydraulic component.