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.

Date of Patent:
Oct. 28, 2014

Filed:

Aug. 18, 2010
Applicants:

Atsushi Shimada, Hitachinaka, JP;

Takao Ishikawa, Hitachi, JP;

Yasuo Yoshii, Naka, JP;

Inventors:

Atsushi Shimada, Hitachinaka, JP;

Takao Ishikawa, Hitachi, JP;

Yasuo Yoshii, Naka, JP;

Assignee:

Hitachi Ltd, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 19/06 (2006.01); F02M 25/10 (2006.01); F02M 27/02 (2006.01); F02P 5/15 (2006.01); F02D 19/08 (2006.01); F01N 5/02 (2006.01); F02M 25/07 (2006.01); F02M 33/00 (2006.01);
U.S. Cl.
CPC ...
F02M 27/02 (2013.01); F02P 5/1502 (2013.01); F02D 19/081 (2013.01); F02D 19/0605 (2013.01); F02D 19/0628 (2013.01); Y02T 10/121 (2013.01); F02D 19/0692 (2013.01); F20D 9/10 (2013.01); Y02T 10/36 (2013.01); F02D 19/0644 (2013.01); Y02T 10/16 (2013.01); F02D 19/0671 (2013.01); F01N 5/02 (2013.01); F02M 25/0742 (2013.01); Y02T 10/46 (2013.01); F02D 19/0689 (2013.01); F02M 33/00 (2013.01); Y02T 10/126 (2013.01);
Abstract

An engine system with a reformer, wherein an unreformed fuel is reformed by the reformer mounted in an exhaust pipe, and wherein a reformed fuel containing hydrogen is supplied to an engine. The engine system with a reformer includes a controller which, when the hydrogen generated by the reformer is supplied to the engine, determines a target heat generation beginning timing in accordance with a load applied to an engine, an engine speed, and an air excess ratio of an air-fuel mixture, and which controls an ignition timing of the engine so that a difference between a current heat generation beginning timing and the target heat generation beginning timing of the engine is within a predetermined range.


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