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:
May. 28, 2019
Filed:
Oct. 13, 2016
Cummins Inc., Columbus, IN (US);
Shounak Mishra, Columbus, IN (US);
Norman C. Blizard, Columbus, IN (US);
Edward Nathan Linen, Columbus, IN (US);
Joseph Andrew Worthington, Scipio, IN (US);
Cummins Inc., Columbus, IN (US);
Abstract
Systems and related methods for regulating fuel rail pressure for internal combustion engines utilizing an electronic fuel transfer pump (eFTP) on the low side to provide robust control of fuel pressure on the high side. The eFTP is in fluid communication with a low-pressure fuel circuit for providing a low-pressure fuel flow at a low pressure to a high-pressure pump. Upon failure of a fuel control valve, a pressure-responsive valve, and/or a pressure sensor impacting the high-side fuel pressure, the eFTP modulates the low-side fuel flow and/or low-side fuel pressure to mitigate damage to the engine. A controller in operative communication with the eFTP and/or one or more sensors is configured to provide a pump command to the eFTP in response to a failure condition impacting the high-side fuel pressure.