Internal-combustion engine

US9217359B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9217359-B2
Application numberUS-201213680111-A
CountryUS
Kind codeB2
Filing dateNov 19, 2012
Priority dateNov 25, 2011
Publication dateDec 22, 2015
Grant dateDec 22, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An internal-combustion engine includes a cylinder, a piston, a spark plug, and a fuel injection device. The piston includes a top surface, a guiding protrusion, and a cavity. The cavity is provided at a position closer to the fuel injection device than the guiding protrusion when viewed from above the top surface of the piston. The guiding protrusion includes a guiding surface to guide the fuel mist toward the spark plug when the fuel mist is injected from the fuel injection device at a first predetermined timing in a compression stroke. The cavity includes a guiding wall portion to guide the fuel mist toward the spark plug when the fuel mist is injected from the fuel injection device at a timing in the compression stroke between the first predetermined timing and a second predetermined timing.

First claim

Opening claim text (preview).

What is claimed is: 1. An internal-combustion engine comprising: a cylinder; a piston provided in the cylinder to reciprocate in the cylinder and including a top surface, a guiding protrusion, and a cavity, the guiding protrusion projecting from a predetermined position of the top surface so as to be separate and distinct from the cavity, the cavity being provided in the top surface; a spark plug provided to face toward an inside of the cylinder and to generate a spark that ig…

Assignees

Inventors

Classifications

  • Mechanical Engineering · mapped topic

  • Cross-Sectional Technologies · mapped topic

  • F02B15/00Primary

    Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • F02B17/005Primary

    Mechanical Engineering · mapped topic

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Frequently asked questions

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What does patent US9217359B2 cover?
An internal-combustion engine includes a cylinder, a piston, a spark plug, and a fuel injection device. The piston includes a top surface, a guiding protrusion, and a cavity. The cavity is provided at a position closer to the fuel injection device than the guiding protrusion when viewed from above the top surface of the piston. The guiding protrusion includes a guiding surface to guide the fuel…
Who is the assignee on this patent?
Honda Motor Co Ltd
What technology area does this patent fall under?
Primary CPC classification F02B15/00. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Dec 22 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).