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:
Mar. 27, 2018

Filed:

Apr. 03, 2014
Applicant:

Mazda Motor Corporation, Hiroshima, JP;

Inventors:

Kyohei Yasuda, Hiroshima, JP;

Tomomi Watanabe, Hiroshima, JP;

Takafumi Nishio, Otake, JP;

Assignee:

MAZDA MOTOR CORPORATION, Hirsoshima, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 19/08 (2006.01); F02D 13/02 (2006.01); F02D 19/06 (2006.01); F02D 41/02 (2006.01); F02D 41/06 (2006.01); F02D 41/00 (2006.01); F02D 41/40 (2006.01); F02D 11/10 (2006.01); F02B 23/10 (2006.01); F02D 15/04 (2006.01);
U.S. Cl.
CPC ...
F02D 19/084 (2013.01); F02D 11/105 (2013.01); F02D 13/0215 (2013.01); F02D 19/061 (2013.01); F02D 19/088 (2013.01); F02D 41/0002 (2013.01); F02D 41/0025 (2013.01); F02D 41/028 (2013.01); F02D 41/064 (2013.01); F02D 41/068 (2013.01); F02D 41/402 (2013.01); F02B 23/104 (2013.01); F02D 15/04 (2013.01); F02D 2200/021 (2013.01); F02D 2200/0411 (2013.01); F02D 2200/602 (2013.01); Y02T 10/18 (2013.01); Y02T 10/36 (2013.01); Y02T 10/42 (2013.01); Y02T 10/44 (2013.01);
Abstract

A controller (an engine controller) feeds a fuel into a cylinderthrough a fuel feeder (including a fuel injection valveand a fuel feeding system) when the cylinderis in an intake stroke and a compression stroke and if an engine body (an engine) is both in a cold running phase and under a heavy load. The engine body at or below a predetermined temperature is in the cold running phase. The load applied to the engine body is heavy when the engine body is under at least a predetermined load. The controller also lowers the upper limit of the charging efficiency of the engine body as the vaporization rate of the fuel fed into the cylinder decreases.


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