How Does A Diesel Engine work?

Most students understand a spark plug -- since a spark starts a fire. But how does a diesel engine work? WITHOUT a spark plug... why?

Category:

Howto & Style

Tags:

• spark
• diesel
• physics
• alternative
• fuel
• engine

[chopsticks416]

I had no idea, I thought it was the spark plug.

[mistermath]

thank you for visiting. Manuel is a cool engineer. He enjoys lecturing people

are you interested in sharing information about your city? I have a web stie called roadlovers dot com and we ask peopel to write about their favorite restaurant or place to visit

[TheKomatsuTech]

The ignition in a diesel is caused both by the high compression and injecting the fuel in the cylinder at an exact degree before tdcc.

The fuel is not present during the compression stroke.

[johnhassle]

@unknownunknowns Smaller would mean it would not follow the diesel cycle, thus it is no longer a diesel engine but rather a gasoline engine.

[unknownunknowns]

@Zenome Then that's why there has to be that precise compression ratio and it has to be smaller. I do hope they can still implement this.

[Zenome]

@unknownunknowns Diesel engines are built to combust at a relatively high compression ratio. When the fuel explodes, the ratio is reduced at that cylinder. So if it is ignited early before it reaches its full vertical travel, then yes the power is reduced. The automotive industry, as well as the construction industries are multi-billion dollar industries, each in its own. I doubt the big companies are worried about "R&D" cost.

[unknownunknowns]

@Zenome Are you telling me that reducing the compression ratio will 'reduce its power'? I ask b/c doesn't that depend on how well the fuel will explode? I don't know but it might be possible and what may be keeping them from doing so is the high R&D. Hopefully, they've already attempted to do so.

[Zenome]

@unknownunknowns You can't strengthen a diesel engine by simply applying a spark. If anything, you would reduce its compression ratio by igniting it earlier than what it is designed for at the specific compression ratio to ignite. So you would reduce its power. If your idea was true, engineers would have implemented it decades ago. They're smarter than you think.

[unknownunknowns]

@Zenome I know that current diesels are not designed to but I'm just implying that there MAY be an engineering posibility b/c isn't the idea to STRENGTHEN each stroke of the cylinder?

[Zenome]

@unknownunknowns Diesels are not designed to be implemented with spark plugs moron. The only plugs diesel engine needs are glow plugs, due to adverse environment conditions that would inhibit the diesel from running the diesel cycle.

[CaseIH232]

@mistermath you spam artist