Ten days after her arrival, " S-42 " ( in the hands of Oliver G . Kirk, Okinoshima " ( damaged at the Battle of the Coral Sea ) through driving rain . " S-42 " fired four torpedoes, scored with three; and sent the 4400-ton minelayer to the bottom.
42.
In the free-piston engine, this power is not delivered to a crankshaft but is instead extracted through either exhaust gas pressure driving a turbine, through driving a linear load such as an air compressor for pneumatic power, or by incorporating a linear alternator directly into the pistons to produce electrical power.
43.
The battery is charged either directly by generating electricity through driving one or both electric motors using the gasoline engine ( while the vehicle is coasting or being driven by the gasoline engine ), or by the wheels driving one or both electric motors through what is called " Regenerative braking " when the vehicle is decelerating, thus regaining some of the energy invested in forward momentum.
