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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 12140099 B1

PDFFull Text
Date of Patent:
Nov. 12, 2024

Filed:

Sep. 19, 2023

Engine

Applicant:

Subaru Corporation, Tokyo, JP;

Inventor:

Shinji Wakamoto, Tokyo, JP;

Assignee:

SUBARU CORPORATION, Tokyo, JP;

Attorney:

TROUTMAN PEPPER HAMILTON SANDERS LLP

Primary Examiner:

Carl C Staubach

Assistant Examiner:

Johnny H Hoang

Int. Cl.
CPC ...
F02D 41/06 (2006.01); F02B 19/12 (2006.01); F02B 19/18 (2006.01); F02D 41/40 (2006.01); F02M 23/10 (2006.01); F02P 5/15 (2006.01); F02D 41/38 (2006.01);
U.S. Cl.
CPC ...
F02D 41/068 (2013.01); F02B 19/12 (2013.01); F02B 19/18 (2013.01); F02D 41/401 (2013.01); F02M 23/10 (2013.01); F02P 5/1504 (2013.01); F02D 2041/389 (2013.01);
Abstract

An engine is configured to ignite an air-fuel mixture with an electric spark to ignite an air-fuel mixture. The engine includes: a cylinder head including a chamber partition wall having through holes and defining a main combustion chamber and a sub-combustion chamber; a fuel injector that injects fuel into the main combustion chamber; an air injector that injects air into the sub-combustion chamber; an ignition device causes an electric discharge between an ignition electrode and the chamber partition wall; and a control system that controls the fuel and air injectors, and the ignition device. At a compression stroke during a warm-up operation, the fuel is injected throughout a first period, and the air is injected throughout a second period at least partially overlapping the first period. At a power stroke during the warm-up operation, the electric discharge is caused after the fuel is injected.

Find Patent Forward Citations

Wakamoto, Shinji. (2024). Engine (U.S. Patent No. 12140099). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12140099

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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