Intake air quantity control device for internal combustion engine

US9624840B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9624840-B2
Application numberUS-201314055010-A
CountryUS
Kind codeB2
Filing dateOct 16, 2013
Priority dateApr 16, 2013
Publication dateApr 18, 2017
Grant dateApr 18, 2017

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

In the intake air quantity control device, a ring-shaped convex portion having an outer diameter being smaller than an inner diameter of the wave washer for damping the drive motor is formed on the bottom surface of the cylinder-shaped hole of the throttle body, and tapered portions are provided at an outer-diameter corner of the ring-shaped convex portion and at an outer-diameter corner of the bottom surface of the cylinder-shaped hole of the throttle body.

First claim

Opening claim text (preview).

What is claimed is: 1. An intake air quantity control device for an internal combustion engine, comprising: a throttle shaft on which a throttle valve, which is provided in an intake air passage of the internal combustion engine, is arranged so as to be freely rotated and supported; a throttle gear that is fixed to the throttle shaft; a pinion gear that is engaged to the throttle gear; a drive motor that includes a motor shaft, to which the pinion gear is fixed, and is freel…

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What does patent US9624840B2 cover?
In the intake air quantity control device, a ring-shaped convex portion having an outer diameter being smaller than an inner diameter of the wave washer for damping the drive motor is formed on the bottom surface of the cylinder-shaped hole of the throttle body, and tapered portions are provided at an outer-diameter corner of the ring-shaped convex portion and at an outer-diameter corner of the…
Who is the assignee on this patent?
Mitsubishi Electric Corp
What technology area does this patent fall under?
Primary CPC classification F02D9/1065. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Apr 18 2017 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).