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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 10969016 B1

PDFFull Text
Date of Patent:
Apr. 06, 2021

Filed:

Dec. 31, 2018

Sealing structure

Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventors:

Yuta Ochi, Toyota, JP;

Michito Shirakawa, Toyota, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

Oliff PLC

Primary Examiner:

Nathan Cumar

Int. Cl.
CPC ...
F16J 15/34 (2006.01); F16J 15/3204 (2016.01); F16J 15/00 (2006.01); F16H 15/16 (2006.01); F02M 51/06 (2006.01); F02M 61/18 (2006.01); F16J 15/16 (2006.01); F02M 55/02 (2006.01); F02M 55/00 (2006.01);
U.S. Cl.
CPC ...
F16J 15/3468 (2013.01); F02M 51/0685 (2013.01); F02M 55/004 (2013.01); F02M 55/005 (2013.01); F02M 55/02 (2013.01); F02M 55/025 (2013.01); F02M 61/1866 (2013.01); F16J 15/002 (2013.01); F16J 15/166 (2013.01); F16J 15/3204 (2013.01); F02M 2200/856 (2013.01);
Abstract

A sealing structure includes an O-ring and a back-up ring. An outer diameter of the back-up ring is smaller than an inner diameter of a mounting portion of a delivery pipe. An inner diameter of the back-up ring is gradually increased from a pressure-receiving surface toward a seating surface, and is greater than an outer diameter of a fuel introducing portion of a fuel injection valve. In a section of the back-up ring, an edge angle defined between the pressure-receiving surface and an inner circumferential surface is smaller than a gap angle defined between the pressure-receiving surface and a tapered outer surface of a tapered portion in the fuel introducing portion. A dimension of the seating surface in the back-up ring is shorter than a dimension in an end surface.

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