Open Source Piston Engine Conceptual Design
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- Exhaust gas recirculation - reduces peak in-cylinder temperatures, reducing NOX [1]
- Electronic valves - eliminates need for camshaft and rockers, allowing higher simplicity, and 30% efficiency gain.
- DIY campless - [2]
- Camless engines are not yet available, outside of some large diesels. [3]
- Free piston engine - drives a working fluid directly, without crankshaft
- Stelzer engine - 2 opposing combustion chambers with middle pumping chamber. [4]. Pertinent popular references - [5] and [6]
- Free piston engine linear generator (FPEG) - [7]
- Hydrogen-powered linear generator is reportedly as efficient as fuel cells - [8]. Discusses linear generator configuration fired on both sides. Also discusses compression ignition of non-diesel fuel - via homogeneous (premixed) charge - (HCCI)
- Homogeneous charge compression ignition - [9]
References
- ↑ https://en.wikipedia.org/wiki/Exhaust_gas_recirculation
- ↑ http://rbowes1.11net.com/dbowes/index.htm
- ↑ https://hackaday.com/2016/02/16/where-are-all-the-camless-engines/
- ↑ https://en.wikipedia.org/wiki/Stelzer_engine
- ↑ https://timesmachine.nytimes.com/timesmachine/1983/06/27/257969.html?pageNumber=53
- ↑ https://books.google.co.uk/books?id=FeMDAAAAMBAJ&pg=PA62&lpg=PA62&dq=stelzer+engine&source=bl&ots=aGh4T-XMpP&sig=Ajz06elbtD8LeNBc7NGlPnsvD8o&hl=en&sa=X&ei=bRAUVcvXAcHlUraEhLAO&sqi=2&ved=0CF0Q6AEwDA#v=onepage&q=stelzer%20engine&f=false
- ↑ https://www.roadandtrack.com/car-culture/a6326/out-of-turn-toyota-engine/
- ↑ https://www1.eere.energy.gov/hydrogenandfuelcells/pdfs/30535bf.pdf
- ↑ https://www.intechopen.com/books/advances-in-internal-combustion-engines-and-fuel-technologies/homogenous-charge-compression-ignition-hcci-engines