Toyota Central R&D developing free-piston engine linear generator; envisioning multi-FPEG units for electric drive vehicles
Green Car Congress
APRIL 22, 2014
'Toyota’s FPEG features a hollow step-shaped piston, combustion chamber and gas spring chamber. Click to enlarge. 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. Toyota envisions that a pair of such units (20 kW) would enable B/C-segment electric drive vehicles to cruise at 120 km/h (75 mph).
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