Nissan Motor Company Limited

Susumu Amagai

Hiroyasu Kan

Hideo Aizawa

Shigeru Oikawa

Shizuya Kawai

A heat shield surrounds an exhaust tail pipe of an internal combustion engine so as to define a certain thickness of an insulating layer of air between the shield and the tail pipe.

Heat shield for an exhaust tail pipe

A first air-warming chamber partially surrounds a second air-warming chamber, which is disposed about an exhaust pipe. Air is passed through the first then second chambers in a zigzag flow path. The prewarmed air entering the second chamber is further heated to a desired level.

Growing community of inventors

Yokohama, Japan

Susumu Amagai