Quote:
Originally Posted by john70t
Yup. Diesel and hybrid are the proverbial horse and carriage.
Many years ago I had an idea for a variable combustion chamber: One that would alter the compression ratio to match any type of fuel with the engine and/or conditions.
After some brief research on the uspto dot gov, I saw other designs that would do the job, though in a different way.
Years later, I still haven't seen any of these on the market.
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There are very few original ideas when it comes to the internal combustion engine. It's hard to talk the public into new designs when they expect 150K trouble-free miles.
Direct injection homogeneous charge compression ignition (HCCI) is the next big thing that will ACTUALLY make it to production. If you haven't looked it up, it's like a diesel stroke but using gasoline. More power, more torque, less noise, less emissions, more fuel efficient.