8
Engine specifications and accessories
Engine specifications
No.
Name
Specifications
1
Model code
YC4D60-D21
YC4D85Z-D20
2
Type
vertical, in-line, liquid-cooled and four-stroke
engine
3
Liner
wet type
4
Combustion chamber
directing injection and reentrant ωtype
5
Intake
natural aspirated
turbocharged
6
Cylinder number
4
7
Cylinder bore (mm)
108
8
Stroke (mm)
115
9
(L) Displacement
4.214
10
Compression ratio
17
：
1
11
Rated power (kW)
37
45
12
Rated speed (r/min)
1500
13
Rated
fuel
consumption
(g/kW.h)
≤240
≤230
14
Min. continuous idle speed
(r/min)
≤700
15
Steady speed regulation (
％
)
≤3
16
Transient speed regulation
(
％
)
±7
