```mermaid
flowchart TD
subgraph 外部環(huán)境
A[冷空氣]
B[熱空氣]
end
subgraph G [發(fā)電機(jī)機(jī)房]
C[機(jī)房進(jìn)風(fēng)口]
D[機(jī)房排風(fēng)口]
end
A --> C
subgraph E [發(fā)電機(jī)組內(nèi)部]
direction LR
F[發(fā)動(dòng)機(jī)端<br>冷卻風(fēng)扇] --> G[冷卻風(fēng)道]
G --> H{氣流分流}
H --> I[冷卻發(fā)動(dòng)機(jī)缸套<br>及散熱器]
H --> J[冷卻發(fā)電機(jī)]
I & J --> K[排氣口]
end