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US-11670901-B2 · Jun 6, 2023 · US
Carbon brush for fuel pump and method for manufacturing same
US9337599B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9337599-B2 |
| Application number | US-201113981172-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 15, 2011 |
| Priority date | Jan 27, 2011 |
| Publication date | May 10, 2016 |
| Grant date | May 10, 2016 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
A carbon brush for a fuel pump includes a brush body and a lead wire connected to the brush body, and the brush body has carbon and polyether ether ketone as main components. Abnormal wear does not occur even if a fuel pump motor is operated at a high voltage.
First claim
Opening claim text (preview).
What is claimed is: 1. A carbon brush for a fuel pump comprising a brush body and a lead wire connected to the brush body, the brush body having natural graphite and polyether ether ketone as main components, wherein the polyether ether ketone in the brush body has a contained amount in a range of 5 wt % to 30 wt % inclusive. 2. The carbon brush for a fuel pump according to claim 1 , wherein the polyether ether ketone has an average particle diameter of 15 to 35 μm. 3. The carbon brush for a fuel pump according to claim 1 , the brush body consisting essentially of natural graphite and polyether ether ketone. 4. A liquid fuel pump motor comprising the carbon brush of claim 1 . 5. The liquid fuel pump motor of claim 4 , wherein the brush body consists essentially of natural graphite and polyether ether ketone. 6. The liquid fuel pump motor of claim 4 , wherein the carbon brush is configured to slide along a carbon commutator of the liquid fuel pump motor. 7. A method for manufacturing a carbon brush for a fuel pump comprising a brush body and a lead wire connected to the brush body, comprising: a step for manufacturing the brush body by compression molding a powder mixture having natural graphite and polyether ether ketone as main components, and performing firing at a temperature in a range of 334° C. to 500° C. inclusive, wherein the polyether ether ketone in the brush body has a contained amount in a range of 5 wt % to 30 wt % inclusive. 8. The method for manufacturing a carbon brush for a fuel pump according to claim 7 , wherein the powder mixture including natural graphite and polyether ether ketone having an average particle diameter of 15 to 35 μm is compression molded. 9. The method for manufacturing a carbon brush for a fuel pump according to claim 7 , the powder mixture consisting essentially of natural graphite and polyether ether ketone.
Assignees
Inventors
Classifications
specially adapted for operating in liquid or gas (combined with cooling arrangements H02K9/00) · CPC title
Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings (supporting or protecting brushes or brush holders in motor casings or enclosures H02K5/14); Disposition of current collectors in motors or generators; Arrangements for improving commutation · CPC title
- H01R39/025Primary
Conductive materials · CPC title
- H01R39/22Primary
incorporating lubricating or polishing ingredient · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9337599B2 cover?
- A carbon brush for a fuel pump includes a brush body and a lead wire connected to the brush body, and the brush body has carbon and polyether ether ketone as main components. Abnormal wear does not occur even if a fuel pump motor is operated at a high voltage.
- Who is the assignee on this patent?
- Nishio Makoto, Nakagawa Shinya, Oi Kiyotoshi, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification H01R39/025. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 10 2016 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).