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:
Nov. 19, 2019
Filed:
Oct. 12, 2016
Fisher-rosemount Systems, Inc., Round Rock, TX (US);
Joseph H. Sharpe, Jr., Round Rock, TX (US);
Mikhail Ilchenko, Moscow, RU;
Gary Hawkins, Burr Ridge, IL (US);
George William Thackston, III, Peachtree Corners, GA (US);
Marcos Peluso, Chanhassen, MN (US);
FISHER-ROSEMOUNT SYSTEMS, INC., Round Rock, TX (US);
Abstract
Methods and apparatus are disclosed for detecting and preventing compressor surge. A transmitter determines a derivative process value of a compressor. A controller obtains the derivative process value from the transmitter. The transmitter is separate from the controller. The controller compares the derivative process value to a threshold value. The threshold value is indicative of the initiation of a surge event in the compressor. In response to determining that the derivative process value fails to satisfy the threshold value, the controller actuates a valve operatively coupled to the compressor to enable an additional derivative process value of the compressor determined by the transmitter to satisfy the threshold value.