Fuel meter protected from icing
US-9777644-B2 · Oct 3, 2017 · US
Fuel injection valve for internal combustion engine
US8991783B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8991783-B2 |
| Application number | US-92055909-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 29, 2009 |
| Priority date | Sep 17, 2008 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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- Title
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Abstract
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In a fuel injection valve, it is intended to enhance valve-closing responsivity while maintaining durability (anti wear property) of a collision portion between a stationary core and a movable core and valve-opening responsivity. An annular end face 106 A of the movable core 106 in the fuel injection valve is provided with a collision portion 106 C that collides to a stationary core 107 when the movable core is magnetically attracted toward the stationary core side and a non-collision portion that keeps a fluid gap between both cores at an area of an outer side or an inner side from the collision portion. The annular end faces of the stationary core and the movable core are coated with platings 30, 31 having anti wear property, and at least one of the platings of the stationary core and the movable core is formed in such a manner that the thickness thereof at the collision portion 106 C is to be thicker and the thickness thereof at the non-collision portion is to be thinner.
First claim
Opening claim text (preview).
The invention claimed is: 1. A fuel injection valve for an internal combustion engine comprising an electromagnetic coil, a movable valve element, a stationary core, a movable core, and a spring, wherein the stationary core and the movable core are disposed in a moving direction of the movable valve element so that annular end faces of the stationary core and the movable core are opposed to each other with a predetermined gap when the electromagnetic coil is not energized, by the s…
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Classifications
Mechanical Engineering · mapped topic
- F02M51/0653Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8991783B2 cover?
- In a fuel injection valve, it is intended to enhance valve-closing responsivity while maintaining durability (anti wear property) of a collision portion between a stationary core and a movable core and valve-opening responsivity. An annular end face 106 A of the movable core 106 in the fuel injection valve is provided with a collision portion 106 C that collides to a stationary core …
- Who is the assignee on this patent?
- Abe Motoyuki, Hayatani Masahiko, Ishikawa Tohru, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification F02M51/0653. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 31 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).