Control system for compression ignition engine
US-10794316-B2 · Oct 6, 2020 · US
Spark-ignition direct-injection engine
US2015114342A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2015114342-A1 |
| Application number | US-201314395902-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 26, 2013 |
| Priority date | Aug 29, 2012 |
| Publication date | Apr 30, 2015 |
| Grant date | — |
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Abstract
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A controller injects fuel into a cylinder at a high fuel pressure of 30 MPa or higher, at least in a period between a terminal stage of a compression stroke and an initial stage of an expansion stroke when an operating mode of an engine body is at least in a first specified sub-range of a low load range, and at least in a second specified sub-range of a high load range. The controller sets an EGR ratio in the first specified sub-range to be higher than an EGR ratio in the second specified sub-range, and advances start of fuel injection in the first specified sub-range to start of fuel injection in the second specified sub-range.
First claim
Opening claim text (preview).
1 . A spark-ignition direct-injection engine comprising: an engine body including a cylinder with a geometrical compression ratio of 15 or higher; a fuel injection valve configured to inject fuel into the cylinder; a fuel pressure setting mechanism configured to set a pressure of the fuel injected by the fuel injection valve; a spark plug facing an inside of the cylinder and configured to ignite an air-fuel mixture in the cylinder; an exhaust recirulation system configured to introduce…
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Mechanical Engineering · mapped topic
- F02B11/02Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US2015114342A1 cover?
- A controller injects fuel into a cylinder at a high fuel pressure of 30 MPa or higher, at least in a period between a terminal stage of a compression stroke and an initial stage of an expansion stroke when an operating mode of an engine body is at least in a first specified sub-range of a low load range, and at least in a second specified sub-range of a high load range. The controller sets an E…
- Who is the assignee on this patent?
- Mazda Motor
- What technology area does this patent fall under?
- Primary CPC classification F02B11/02. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Apr 30 2015 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).