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:
Jan. 18, 2022

Filed:

Dec. 21, 2020
Applicant:

Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;

Inventors:

Hajime Takagawa, Susono, JP;

Yoshiki Endo, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F 1/36 (2006.01); F01L 1/047 (2006.01); F01M 11/00 (2006.01); F01M 11/02 (2006.01); F01L 1/02 (2006.01); B22D 25/02 (2006.01); F01M 1/02 (2006.01);
U.S. Cl.
CPC ...
F02F 1/36 (2013.01); F01L 1/022 (2013.01); F01L 1/047 (2013.01); F01M 11/0004 (2013.01); F01M 11/02 (2013.01); B22D 25/02 (2013.01); F01M 1/02 (2013.01);
Abstract

Intake and exhaust cam shafts are disposed a cylinder head in a vertical direction. The cylinder head comprises a first through hole and a second through hole. The first through hole penetrates an upper surface deck from a deck surface towards a lower surface of the cylinder head. The deck surface is a surface constituting an upper surface deck of the cylinder head. The second through hole opens to a side surface of the cylinder head in which cam pulleys of intake and exhaust cam shafts are provided. The second through hole penetrates the upper surface deck along an axial direction of the intake and exhaust cam shafts. The second through hole is positioned vertically below an opening in the deck surface of the first through hole.


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