Sherrit, Stewart and Lee, Hyeong Jae and Colonius, Tim and Tosi, Luis Phillipe (2019) Flow energy harvesting devices and system. Patent number: US20190097548A1. https://resolver.caltech.edu/CaltechAUTHORS:20211008-223014029
![]() |
PDF (US20190097548A1)
- Published Version
See Usage Policy. 1MB |
Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20211008-223014029
Abstract
A flow energy harvesting system including a nozzle-diffuser defining a spline-shaped flow channel and a flow energy harvesting device in the spline-shaped flow channel of the nozzle-diffuser. The spline-shaped flow channel includes a converging portion, a diverging portion, and a constriction section between the converging and diverging portions. The flow energy harvesting device includes a flextensional member having a frame and a cantilever extending outward from the frame, and a stack of piezoelectric elements housed in an interior cavity defined in the frame. The cantilever is a non-piezoelectric material. The frame of the flextensional member is in the converging portion and the cantilever is in the constriction section of the spline-shaped flow channel. The frame is configured to deform and elongate the piezoelectric elements to generate a current based on the piezoelectric effect when a fluid flows through the spline-shaped flow channel and generates unbalanced forces on the cantilever due.
Item Type: | Patent | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Related Patents: | WO2017196454A2, GB2565452B | |||||||||
Patent Classification: | U.S. Class: H02N2/186; E21B 41/0085. Current International Class: HO2N 2/18; E21B 41/00. | |||||||||
Patent Assignee: | California Institute of Technology | |||||||||
Related URLs: |
| |||||||||
ORCID: |
| |||||||||
Additional Information: | Application filed: 2016-03-25. Application published: 2019-03-28. Patent status: pending. STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH/DEVELOPMENT: The invention described herein was made in the performance of work under a NASA contract NNN12AA01C, and is subject to the provisions of Public Law 96 - 517 ( 35 USC 202 ) in which the Contractor has elected to retain title. | |||||||||
Funders: |
| |||||||||
Record Number: | CaltechAUTHORS:20211008-223014029 | |||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20211008-223014029 | |||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
ID Code: | 111308 | |||||||||
Collection: | CaltechAUTHORS | |||||||||
Deposited By: | Katherine Johnson | |||||||||
Deposited On: | 08 Oct 2021 22:55 | |||||||||
Last Modified: | 11 Nov 2022 19:07 |
Repository Staff Only: item control page