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:
Sep. 22, 1981
Filed:
Mar. 16, 1979
Karel Skala, Windisch, CH;
BBC Brown, Boveri & Co., Ltd., Baden, CH;
Abstract
A steam turbine plant is disclosed having at least one turbine intake valve and at least one by-pass valve, which valves are connected with a live-steam generator by way of a live-steam supply system. A regulating circuit is provided to control the opening or respectively closing motion of the turbine intake valve and/or the by-pass valve, where the regulating circuit is designed in such manner that it will supply each valve with one electrical regulating value (x.sub.1, x.sub.2) which will act upon the respective controlled system. The electrical regulating value is provided so as to attain a specific steam flow-through (Q.sub.1, Q.sub.2), representing the controlled variable. The controlled systems each comprise a valve to be regulated. The controlled systems differ from each other in particular features in that there is placed within the controlled system containing the turbine intake valve and/or the by-pass valve at least one correction element which possesses such transfer function that the transfer functions of both controlled systems will be, at least in approximation, identical with each other.