Outboard motor fuel supply unit
US-9517823-B2 · Dec 13, 2016 · US
Engine device
US9376996B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9376996-B2 |
| Application number | US-201214122478-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 28, 2012 |
| Priority date | Jun 16, 2011 |
| Publication date | Jun 28, 2016 |
| Grant date | Jun 28, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A problem exists that in the case that a prior injection (a pilot injection B or a previous injection C) before a main injection A is executed when an engine is driven at a low load, a defective ignition and a defective combustion tend to be caused, an amount of carbon monoxide (CO) in an exhaust gas becomes excessive, and the carbon monoxide is discharged as white smoke. An engine device is mounted to a working vehicle, and a common rail type fuel injection device which injects fuel to the engine at multiple stages during one combustion cycle. The common rail type fuel injection device does not execute the prior injections B and C coming before the main injection A in the case that a load applied to the engine is in a low load state in which a load is lower than that at a working time by the working vehicle.
First claim
Opening claim text (preview).
The invention claimed is: 1. An engine device comprising: an engine being mounted to a working vehicle; and a common rail type fuel injection device for injecting fuel to the engine at multiple stages during one combustion cycle, wherein the common rail type fuel injection device makes an injection amount of a prior injection coming before a main injection less than a previously set prescribed amount in the case that a load applied to the engine is in a low load state in which a load is lower than that at a working time by the working vehicle. 2. The engine device according to claim 1 , wherein the common rail type fuel injection device sets an injection amount of the prior injection to the prescribed amount in the case that the load applied to the engine is in the other state than the low load state.
Assignees
Inventors
Classifications
Multiple injections · CPC title
Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto · CPC title
with post injections · CPC title
- F02M61/16Primary
Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14 · CPC title
with pilot injections · CPC title
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- What does patent US9376996B2 cover?
- A problem exists that in the case that a prior injection (a pilot injection B or a previous injection C) before a main injection A is executed when an engine is driven at a low load, a defective ignition and a defective combustion tend to be caused, an amount of carbon monoxide (CO) in an exhaust gas becomes excessive, and the carbon monoxide is discharged as white smoke. An engine device is mo…
- Who is the assignee on this patent?
- Seki Yoshiaki, Yanmar Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F02M61/16. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jun 28 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).