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. 11, 2021
Filed:
Nov. 29, 2019
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventors:
Goudarz Hajialimohammadi, Bloomington, IL (US);
Manjunath Bannur Nagaraja, Naperville, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 37/00 (2006.01); F02M 63/00 (2006.01); F02M 61/14 (2006.01);
U.S. Cl.
CPC ...
F02M 37/0052 (2013.01); F02M 61/14 (2013.01); F02M 63/0029 (2013.01); F02M 2200/701 (2013.01);
Abstract
An internal combustion engine system includes an engine head, a pressurized fuel supply conduit, and a fuel return conduit. Fuel injectors are positioned in fuel injector bores in the engine head, and each include an intensifier plunger, a nozzle check, an injection control valve, and an intensifier control valve. Fuel recovery fittings are coupled to the plurality of fuel injectors and each fluidly connect an actuation fuel outlet in one of the fuel injectors to the fuel return conduit.