CONSTRUCTION
A piston provided with a combustion chamber is used.
The piston is made of aluminum alloy.
A cooling channel has been provided to reduce the piston temperature, and achieve high reliability.
The shape of the piston skirt portion is optimized to achieve fuel economy and to achieve reliability.
Resin coating is provided to the piston skirt portion, reducing friction to improve fuel economy.
The shape of the piston ring is optimized to improve fuel economy.
| *1 | Piston | *2 | Cooling Channel |
| *3 | Ni-resist Cast Iron Ring Carrier | *4 | No. 1 Compression Ring |
| *5 | No. 2 Compression Ring | *6 | Oil Ring |
| *a | Resin Coating | *b | PVD Coating |