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:
Dec. 25, 1979
Filed:
Oct. 18, 1977
Shinichiro Miyaoka, Nishi-tama, JP;
Kuniaki Matsumoto, Kokubunji, JP;
Junichi Hatakeyama, Kokubunji, JP;
Hitachi, Ltd., , JP;
Abstract
System for controlling flow rate in pipelines connecting a plurality of reservoirs is disclosed. Flow rate Q.sub.ij (t) of fluid flowing from one reservoir (i) to another reservoir (j) is first calculated from the water levels H.sub.i (t), H.sub.j (t) of both reservoirs (i), (j) and then water level H.sub.j (t+1) of the reservoir (j) at the time (t+1) is calculated from its inflow and outflow taking into account the predicted amount of demand Q.sub.je (t). If the water level h.sub.j (t+1) is below or over the predetermined lower or upper limitation, manipulated variables for valves and pumps installed in pipelines are regulated to control inflow of the reservoir (j) so that the required fluid-feed is satisfied while maintaining the scheduled water level of the reservoir (j).