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. 06, 2018
Filed:
Apr. 14, 2015
Applicant:
Cummins Inc., Columbus, IN (US);
Inventors:
Lester L. Peters, Columbus, IN (US);
Paul Douglas Free, Hope, IN (US);
John Robert Pendray, Blaine, MN (US);
Assignee:
CUMMINS INC., Columbus, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 21/02 (2006.01); F02D 41/40 (2006.01); F02D 41/34 (2006.01); F02D 19/06 (2006.01);
U.S. Cl.
CPC ...
F02M 21/0278 (2013.01); F02D 41/345 (2013.01); F02D 41/401 (2013.01); F02M 21/029 (2013.01); F02D 19/0644 (2013.01); F02D 19/0647 (2013.01); F02D 19/0689 (2013.01); F02M 21/0206 (2013.01); F02M 21/0209 (2013.01); F02M 21/0212 (2013.01); F02M 21/0218 (2013.01); F02M 21/0221 (2013.01); F02M 21/0275 (2013.01); Y02T 10/32 (2013.01);
Abstract
A combustion engine and a method of operating the combustion engine are disclosed. The method comprises supplying a charge gas to the combustion chamber through an intake port; discharging a cryogenic fuel in a liquid state from a fuel injector in fluid communication with the combustion chamber; closing an intake valve to close the combustion chamber; and actuating a piston during a compression cycle to compress the charge gas and the cryogenic fuel. At least a portion of the cryogenic fuel evaporates in the closed combustion chamber.