Oblon, McClelland, Maier & Neustadt, L.L.P.
Internal combustion engine
In the specified cylinder, the heat shield film is formed on the top surface of the piston, the surface of the parachute part of the exhaust valve, and the wall surface of the exhaust port. On the other hand, in cylinder other than the specified cylinder, the heat shield film is formed only on the top surface of piston. The heat shield film is also formed on the inner wall of the exhaust manifold, the inner wall of the exhaust pipe, and the inner wall of the housing. Among the exhaust manifold, however, the heat shield film is not formed on the inner wall of the branch pipe connected to the exhaust port of the other cylinder.
TOYOTA JIDOSHA KABUSHIKI KAISHA
F F F F F F F F F F Y F
F02B F02F F01N F02D F02D F02D F02D F05C F01N F02D Y02T F01N
inventional inventional inventional inventional inventional inventional additional additional inventional additional additional inventional
Hideo
Yamashita