Internal Combustion Engine

Internal Combustion Engine(ciechanow.ski)

112 points by StefanBatory 4 hours ago | 9 comments

bob1029 42 minutes ago |

> Presence of oil is critical here as it creates conditions for hydrodynamic lubrication.

You can hear this effect in some vehicles at initial startup time for a few seconds. I know of certain Ford engines where it actually causes issues over time. The model years with auto start/stop have the worst of the cam rattle disease.

CraigJPerry 31 minutes ago |

The thing that's missing here that really drastically changes the story is all the emissions control hardware that would exist on such an engine.

This is a circa 1990s engine in the US market i think? Dual Overhead Cam didn't really become popular in the US market until then i think. 70s-80s for single overhead cam to become established.

The diagrams are beautiful and informative as always from this author.

fauria 33 minutes ago |

"in real running engines the rotating crankshaft should float completely on a very thin surface of oil" - I found this to be a great insight.

felooboolooomba 1 hour ago |

Pro tip: Show a message if WebGL is disabled instead of a blank space.

bell-cot 4 hours ago |

[2021] Originally 2333 points and 392 comments:

https://news.ycombinator.com/item?id=26991300

mrhottakes 1 hour ago |

Excellent animations.

misiek08 48 minutes ago | |

You meant - awful knocking combustion in the first, main animation? I never catches any real bug is those great posts, but this one, especially as first animation on the page - weird.