Mitsubishi S12R-Y2PTAW-1 User Manual

Certified for US EPA-Tier 2 / Constant Speed
Standard Model [1250kWe/60Hz]
MITSUBISHI
S12R-Y2PTAW-1 SPECIFICATION SHEET DIESEL ENGINES
GENERAL ENGINE DAT
A
Type 4-Cycle, Water Cooled
Aspiration Turbo-Charged, Inter Cooler
(Fresh water to Cooler)
Cylinder Arragement 60
o
V
N
o.of Cylinder
s
12
Bore mm(in.) 170 (6.69)
Stroke mm(in.) 180 (7.09)
Displacement liter(in
3
) 49.03 (2992)
Compression Ratio 14.5:1
Dry Weight - Engine only - kg(lb) 5270 (11620)
Wet Weight - Engine only - kg(lb) 5555 (12249)
PERFORMANCE DAT
A
Steady State Speed Stability Band at any Constant Loa
d
Electric Governor - % ±0.25 or better
Maximum Overspeed Capacity - rpm 2100
Moment of inertia of Rotating Components - kgf・m
2
(lb
f
・f
t
2
) 75.3 (1787.2)
(Includes Std.Flywheel
)
Cyclic Speed Variation with Flywheel at 1800rpm 1/576
ENGINE MOUNTIN
G
Maximum Bending Moment at Rear Face of Flywheel Housing - kg
f
・m(lb
f
・ft) 450 (3255.6)
AIR INLET SYSTE
M
Maximum Intake Air Restriction (Includes piping)
With Clean Filter Element - mm H
2
O (in.H
2
O) 400 (15.7)
With Dirty Filter Element - mm H
2
O (in.H
2
O) 635 (25.0)
EXHAUST SYSTE
M
Maximum Allowable Back Pressure - mm
H
2
O (in.H
2
O) 600 (23.6)
LUBRICATION SYSTE
M
Oil Pressure at ldle - kgf/cm
2
(psi) 2〜3 (29〜43)
at Rate Speed - kgf/c
m
2
(psi) 5〜6.5 (71〜93)
Maximum Oil Temperature -
o
C(
o
F) 110 230
Oil Capacity of Standard Pan High - liter (U.S.gal) 150 (40)
Low - liter (U.S.gal) 108 (28.5)
Total System Capacity (lncludes Oil Filter) - liter (U.S.gal) 180 (47.6)
Maximum Angle of lnstallation (Std. Pan) Front Down 6.5
o
(Engine Only) Front Up 6.5
o
Side to Side 22.5
o
COOLING SYSTE
M
Coolant Capacity of Jacket (Engine only) - liter (U.S.gal) 116 (30.6)
Coolant Capacity of Air cooler (Engine only) - liter (U.S.gal) 14 (3.7)
Maximum External Friction Head at Engine Outlet - kgf/cm
2
(psi)
(For Jacket and Air Cooler) 0.35 (5.0)
Maximum Static Head of Coolant above Crankshaft Center - m(ft) 10 (32.8)
Standard Thermostat (modulating)Range of Jacket -
o
C(
o
F) 71〜85 (160〜185)
Standard Thermostat (modulating)Range of Air Cooler -
o
C(
o
F) 42〜55 (108〜131)
Maximum Coolant Temperature at Engine Outlet of Jacket -
o
C(
o
F) 98 (208)
Minimum Coolant Expansion Space - % of System Capacity
(For Jacket and Air Cooler) 10 (0.4)
Maximum Coolant Temperature at Intercooler lnlet, PTAW type -
o
C(
o
F) 45 (113)
Maximum Air Restriction on Discharge Side of Radiator and Fan - mm H
2
O(in.H
2
O) 10 (0.4)
APPLICATION : GENERATO
R
Pub. No. T13-0634-E
Oct. '06 Printed in Japan

Mitsubishi S12R-Y2PTAW-1 Specifications

General

Brand	Mitsubishi
Model	S12R-Y2PTAW-1
Category	Engine
Language	English

Summary

General Engine Data

Performance Data

Speed Stability and Governor Performance

Engine speed stability and governor capabilities.

Air Inlet System Restrictions

Intake Air Restriction

Maximum air restriction with clean and dirty filter elements.

Exhaust System Back Pressure

Maximum Allowable Back Pressure

Maximum permitted back pressure in the exhaust system.

Lubrication System Details

Oil Pressure and Temperature

Engine oil pressure at idle/rated speed and max temperature.

Cooling System Specifications

Static Head and Thermostat Ranges

Max coolant static head and thermostat operating ranges.

Maximum Coolant Temperatures

Max jacket coolant outlet and intercooler inlet temperatures.

Air Restriction on Radiator/Fan

Maximum air restriction on the discharge side of the radiator and fan.

Starting System

Battery Charging Alternator and Motor

Recommended Minimum Battery Capacity

Engine Ratings

Brake Horsepower and Mean Effective Pressure

Brake horsepower and mean effective pressure for stand-by and prime power.

Heat Rejection Data