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. 13, 2016
Filed:
Aug. 08, 2014
Cummins Emission Solutions, Inc., Columbus, IN (US);
Srivardhan Chandrapati, Columbus, IN (US);
Andrew Morgan Myer, Greenwood, IN (US);
Mugdha Naik, Columbus, IN (US);
Shu Zhang, Columbus, IN (US);
Xin Jin, Columbus, IN (US);
Srinivasa Varadan Rajagopalan, Ann Arbor, MI (US);
John K. Heichelbech, Columbus, IN (US);
Stephen M. Holl, Columbus, IN (US);
Cummins Emission Solutions, Inc., Columbus, IN (US);
Abstract
An example system includes a diaphragm pump having a suction port and a discharge port, a urea suction line fluidly coupling a urea supply to the suction port, and a urea discharge line fluidly coupled to the discharge port. A recirculation line fluidly couples the urea discharge line to the urea suction line, and has a flow regulator operationally coupled thereto. A controller is configured to interpret a prime loss condition of the diaphragm pump, and to provide a flow regulator command in response to the prime loss condition.