Jan 28, 2019

Free piston engine or free piston linear generator?

Free piston engines are coming back, from car manufacturers. The invention is very old but electric cars need electricity, and the free piston engine is a very light and compact to charge an electric car when the charging station is not near.

Toyota's free piston engine generator (FPEG)Pict:
A team at Toyota Central R&D Labs Inc. is developing a prototype 10 kW Free Piston Engine Linear Generator (FPEG) featuring a thin and compact build, high efficiency and high fuel flexibility.

 (Video link)





Peugeot & Citroèn (PSA) also doing research. They have their own 10-20 kW free piston generator too. Link to news is here
Fig11












And history, General Motors GM XP-500 




And funny: Big linear 2 stroke Diesel: 

And linear Gasoline tools.. :D



Fact:
Industrial manufacture:  a few 
Efficiency: Carnot,   0,1-0,45
StartUps: Yes, small engines.

More: Wikipedia
Science/History (link)
klo

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