Technology is changing after 130 years

[CGASTON]

http://powernationtv.com/post/toyota-central-rd-developing-free-piston-engine-linear-generator


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[ijames]

Using one to drive a linear generator like that may be new, but free piston engines have been around "forever" - turn it vertical, make it a lot bigger, and that's one of the things they use to drive pilings into the ground for foundation reinforcement.