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:
Jan. 09, 2018
Filed:
Jul. 23, 2013
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Yasuhiro Uda, Osaka, JP;
Makoto Kobuke, Osaka, JP;
NITTO DENKO CORPORATION, Osaka, JP;
Abstract
A spiral-wound forward osmosis membrane element () includes: a membrane leaf () in which an internal flow path extending from a first opening (A) to a second opening (B) is formed; and a central tube () around which the membrane leaf () is wound and which has a feed hole (A) communicating with the first opening (A) and a collection hole (B) communicating with the second opening (B). The central tube () has an interior partitioned to include an inflow region (A) communicating with the feed hole (A) and an outflow region (B) communicating with the collection hole (B) so that the inflow region (A) and the outflow region (B) each form a flow path extending continuously in an axial direction of the central tube () from one end to the other end of the central tube (). Since a liquid fed into the inflow region (A) is discharged to the outside without passing through two or more internal flow paths (), the pressure loss in the spiral-wound forward osmosis membrane element () is reduced. Thereby, it is possible to provide a spiral-wound forward osmosis membrane element in which the pressure loss of the flow of a fluid is reduced.