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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.:

US 10982616 B1

PDFFull Text
Date of Patent:
Apr. 20, 2021

Filed:

Aug. 23, 2018

Premixed compression ignition type engine with supercharging system

Applicant:

Mazda Motor Corporation, Hiroshima, JP;

Inventors:

Atsushi Inoue, Aki-gun, JP;

Masanari Sueoka, Hiroshima, JP;

Yusuke Kawai, Hiroshima, JP;

Tetsuya Chikada, Higashihiroshima, JP;

Assignee:

Mazda Motor Corporation, Hiroshima, JP;

Attorney:

Alleman Hall Creasman & Tuttle LLP

Primary Examiner:

Kevin R Steckbauer

Int. Cl.
CPC ...
F02D 41/30 (2006.01); F02B 11/02 (2006.01); F02B 23/02 (2006.01); F02B 23/10 (2006.01); F02D 13/02 (2006.01); F02D 41/00 (2006.01); F02D 41/40 (2006.01); F02P 5/04 (2006.01); F02P 5/15 (2006.01); F02D 15/00 (2006.01); F02M 26/23 (2016.01); F02D 41/38 (2006.01);
U.S. Cl.
CPC ...
F02D 41/3041 (2013.01); F02B 11/02 (2013.01); F02B 23/02 (2013.01); F02B 23/10 (2013.01); F02D 13/0261 (2013.01); F02D 13/0265 (2013.01); F02D 15/00 (2013.01); F02D 41/0007 (2013.01); F02D 41/0047 (2013.01); F02D 41/401 (2013.01); F02D 41/402 (2013.01); F02P 5/045 (2013.01); F02P 5/15 (2013.01); F02D 41/0057 (2013.01); F02D 41/403 (2013.01); F02D 41/405 (2013.01); F02D 2041/001 (2013.01); F02D 2041/389 (2013.01); F02M 26/23 (2016.02);
Abstract

When the geometric compression ratio of an engine body is set to 13:1 or more and the engine body operates in a preset high load region, the effective compression ratio of the engine body is set to 12:1 or more with a difference from the geometric compression ratio being within 2, a gas to be introduced into a combustion chamber is supercharged by a supercharging system, fuel is injected at least in a compression stroke by an injector, and after the fuel injection is finished, an air-fuel mixture in the combustion chamber is ignited by an ignition device before the compression top dead center and is thus burned by flame propagation in the engine body, and then the unburned air-fuel mixture is burned by compression ignition.

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