Fuel injector
US-9441589-B2 · Sep 13, 2016 · US
Fuel injector
US2016348629A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016348629-A1 |
| Application number | US-201514725787-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 29, 2015 |
| Priority date | May 29, 2015 |
| Publication date | Dec 1, 2016 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A fuel injector includes an injector body having an injector cavity, a valve seat, and a flow control member. The valve seat is comprised of a metallic material having a grain size of 0.05-5.0 μm. Additionally, the fuel injector includes a nozzle valve element positioned in the injector cavity and configured to move between an open position in response to the flow control member being spaced apart from the valve seat and a closed position in response to the flow control member engaging the valve seat. Fuel is configured to flow from the fuel injector in response to the nozzle valve element being in the open position.
First claim
Opening claim text (preview).
1 . A fuel injector, comprising: an injector body having an injector cavity, a valve seat, and a flow control member, the valve seat being comprised of a metallic material having a grain size of 0.05-5.0 μm; and a nozzle valve element positioned in the injector cavity and configured to move between an open position in response to the flow control member being spaced apart from the valve seat and a closed position in response to the flow control member engaging the valve seat, and fuel is configured to flow from the fuel injector in response to the nozzle valve element being in the open position. 2 . The fuel injector of claim 1 , wherein the grain size of the metallic material is less than one μm. 3 . The fuel injector of claim 1 , wherein the metallic material has a density of 7,500-8,000 kg/m 3 at 15-25° C. 4 . The fuel injector of claim 3 , wherein the density is 7,700 kg/m 3 at 20° C. 5 . The fuel injector of claim 1 , wherein the metallic material has a hardness of 58-62 Rockwell C. 6 . The fuel injector of claim 1 , wherein an outer surface of the flow control member contacts an outer surface of the valve seat when the nozzle valve element is in the closed position. 7 . The fuel injector claim 1 , wherein a grain boundary between the grains of the metallic material is comprised of the metallic material. 8 - 20 . (canceled)
Assignees
Inventors
Classifications
of engine cylinder parts or of piston parts other than piston rings (of piston rings B22F5/02) · CPC title
Micron size particles, i.e. above 1 micrometer up to 500 micrometer · CPC title
Sintering only · CPC title
Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties · CPC title
- F02M61/1886Primary
Details of valve seats not covered by groups F02M61/1866 - F02M61/188 · CPC title
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- What does patent US2016348629A1 cover?
- A fuel injector includes an injector body having an injector cavity, a valve seat, and a flow control member. The valve seat is comprised of a metallic material having a grain size of 0.05-5.0 μm. Additionally, the fuel injector includes a nozzle valve element positioned in the injector cavity and configured to move between an open position in response to the flow control member being spaced ap…
- Who is the assignee on this patent?
- Cummins Inc
- What technology area does this patent fall under?
- Primary CPC classification F02M61/1886. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Dec 01 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).