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Introduction
Intake Air and
Exhaust Air · · ·
Intake air enters the gas mixer ( ⑨ ) through the air filter ( ⑫ ) to be mixed with the fuel. The air/fuel
mixture then flows into the engine ( ⑧ ) cylinder.
Exhaust air dissipates heat at the exhaust air heat exchanger ( ② ), and is emitted into the atmo-
sphere through an exhaust air pipe ( ⑮ ) and an exhaust water drain trapper ( ⑱ ).
Condensed water produced by exhaust air heat dissipation is neutralized at the exhaust water
drain filter ( ⑯ ), and discharged from the unit through the exhaust water drain hose ( ⑰ ).
① : Engine coolant pump ⑧ : Engine ⑮ : Exhaust muffler
② : Exhaust air heat exchanger ⑨ : Gas mixer ⑯ : Exhaust water drain filter
③ : Thermostat (140 ℉ (60 ℃ ) ⑩ : Gas regulator ⑰ : Exhaust water drain hose
④ : Thermostat (158 ℉ (70 ℃ ) ⑪ : Electromagnetic gas valve ⑱ : Exhaust water drain trapper
⑤ : Sub heat exchanger ⑫ : Air filter ⑲ : Sub oil reservoir
⑥ : Radiator ⑬ : Engine coolant temperature sensor
⑦ : Engine coolant reserve tank ⑭ : Radiator cap
shows the intake air flow direction
shows the exhaust air flow direction
shows the condensed water flow direction