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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 10774777 B1

PDFFull Text
Date of Patent:
Sep. 15, 2020

Filed:

Jul. 17, 2018

Internal combustion engine with an electronically controlled tumble control valve

Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventors:

Sachio Mori, Mishima, JP;

Koshiro Kimura, Susono, JP;

Satoshi Tsuda, Susono, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;

Attorney:

Hunton Andrews Kurth LLP

Primary Examiner:

Hung Q Nguyen

Assistant Examiner:

Anthony Donald Taylor, Jr

Int. Cl.
CPC ...
F02P 5/00 (2006.01); F02D 43/00 (2006.01); F02D 41/00 (2006.01); F02D 41/14 (2006.01); F02B 23/08 (2006.01); F02B 31/06 (2006.01); F02D 35/02 (2006.01); F02D 31/00 (2006.01); F02P 5/04 (2006.01); F02P 5/145 (2006.01); F02D 41/18 (2006.01); F02B 23/10 (2006.01); F02B 31/00 (2006.01); F02B 75/12 (2006.01);
U.S. Cl.
CPC ...
F02D 43/00 (2013.01); F02B 23/08 (2013.01); F02B 31/06 (2013.01); F02D 31/001 (2013.01); F02D 35/026 (2013.01); F02D 41/0002 (2013.01); F02D 41/005 (2013.01); F02D 41/0072 (2013.01); F02D 41/1454 (2013.01); F02P 5/045 (2013.01); F02P 5/145 (2013.01); F02B 2023/106 (2013.01); F02B 2031/006 (2013.01); F02B 2075/125 (2013.01); F02D 41/18 (2013.01); F02D 2041/0015 (2013.01); Y02T 10/125 (2013.01); Y02T 10/146 (2013.01); Y02T 10/42 (2013.01); Y02T 10/47 (2013.01);
Abstract

An internal combustion engine includes an ignition plug and an electronic control unit. The electronic control unit is configured to: (i) execute a lean-burn operation in a first operation region, (ii) execute an operation in a second operation region at an air-fuel ratio lower than an air-fuel ratio during the lean-burn operation, and (iii) control a gas flow in a cylinder so that a ratio of a change in a gas flow speed around the ignition plug during ignition to a change in an engine rotation speed in a first engine rotation speed region within the first operation region is smaller than the ratio in a second engine rotation speed region within the second operation region.

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