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. 26, 1999
Filed:
Jan. 21, 1997
Holger Kuhlemann, Sarstedt, DE;
H. Meinecke AG, Laatzen, DE;
Abstract
The turbine flowmeter includes an impeller wheel mounted, so that it can rotate, between an upstream hub and downstream hub in a tubular element. The hubs are mounted securely in the tubular element by ribs. A device for regulating to compensate measuring errors resulting from manufacturing tolerances is provided at least on the upstream hub. To provide the regulating effect as well as to avoid an asymmetric flow against the impeller wheel the regulating device includes a pivotable regulating part (6) including fins (9) and is located immediately downstream of the upstream hub (1) and a drive device for pivoting the rotatable regulating part (6) about the impeller-wheel axis (A) between an off position (O) in which fins (9) are located in a turbulence region immediately downstream of the ribs (4) in a flow direction (F) through the tubular element (5) and at least one pivoted position (P',P') in which fins (9) extend in a flow region between the ribs (4) and are uniformly circumferentially distributed around the regulating part (6) to deflect a flow past it.