Ignition apparatus
US-9995267-B2 · Jun 12, 2018 · US
Ignition device for internal combustion engine
US2018238293A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018238293-A1 |
| Application number | US-201815893175-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 9, 2018 |
| Priority date | Feb 21, 2017 |
| Publication date | Aug 23, 2018 |
| Grant date | — |
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- Title
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Abstract
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An ignition device for an internal combustion engine with an ignition plug that ignites an air-fuel mixture in a combustion chamber, wherein a discharge current i provided by the ignition plug to the air-fuel mixture is controlled to be greater than a discharge current reference value ibf, which is a minimum current value at which a spark discharge blow-out phenomenon does not arise.
First claim
Opening claim text (preview).
1 . An ignition device for an internal combustion engine equipped with an ignition plug that ignites an air-fuel mixture in a combustion chamber, wherein a discharge current i provided by the ignition plug to the air-fuel mixture is controlled to be greater than a discharge current reference value ibf, which is a minimum current value at which a spark discharge blow-out phenomenon does not arise. 2 . The ignition device for an internal combustion engine according to claim 1 , wherein the discharge current reference value i bf is set according to the following mathematical formula. i bf =kU n1 l spk n2 (1) 3 . The ignition device for an internal combustion engine according to claim 2 , wherein the constant k is adjustable within a range of 0.0017±10%, the constant n 1 is adjustable within a range of 0.71±10%, and the constant n 2 is adjustable within a range of 0.33±10% in mathematical formula (1).
Assignees
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Classifications
having continuous electric sparks · CPC title
for control of the magnitude of the current in the ignition coil (during starting F02P15/12) · CPC title
with positive ignition (engines with non-timed positive ignition, and with incandescent chambers F02B9/08) · CPC title
by supplementary electrical discharge in the pre-ionised electrode interspace of the sparking plug, e.g. plasma jet ignition · CPC title
Testing of ignition installations (peculiar to internal-combustion engines F02P17/00) · CPC title
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- What does patent US2018238293A1 cover?
- An ignition device for an internal combustion engine with an ignition plug that ignites an air-fuel mixture in a combustion chamber, wherein a discharge current i provided by the ignition plug to the air-fuel mixture is controlled to be greater than a discharge current reference value ibf, which is a minimum current value at which a spark discharge blow-out phenomenon does not arise.
- Who is the assignee on this patent?
- Toyota Chuo Kenkyusho Kk
- What technology area does this patent fall under?
- Primary CPC classification F02P17/12. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Aug 23 2018 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).