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:
Oct. 03, 2017
Filed:
Apr. 05, 2010
Bin LU, Kenosha, WI (US);
Santosh Kumar Sharma, Viman Nagar, IN;
Ting Yan, Brookfield, WI (US);
Steven A. Dimino, Wauwatosa, WI (US);
Bin Lu, Kenosha, WI (US);
Santosh Kumar Sharma, Viman Nagar, IN;
Ting Yan, Brookfield, WI (US);
Steven A. Dimino, Wauwatosa, WI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A system and method for detecting cavitation in pumps for fixed and variable supply frequency applications is disclosed. The system includes a controller having a processor programmed to repeatedly receive real-time operating current data from a motor driving a pump, generate a current frequency spectrum from the current data, and analyze current data within a pair of signature frequency bands of the current frequency spectrum. The processor is further programmed to repeatedly determine fault signatures as a function of the current data within the pair of signature frequency bands, repeatedly determine fault indices based on the fault signatures and a dynamic reference signature, compare the fault indices to a reference index, and identify a cavitation condition in a pump based on a comparison between the reference index and a current fault index.