3612 and 3616 Fast Vessel Engines Caterpillar

Table 1 lists typical performance data for Caterpillar 3612 and 3616 Fast Vessel Engines. The 3612 Engines are rated from 3400 bkW to 4250 bkW. The 3616 Engines are rated from 4500 bkW to 5650 bkW.

Table 1

Parameter	3612		3616
Engine speed	800 rpm	1000 rpm	800 rpm	1000 rpm
Engine output (±3%)	3400 bkW	4250 bkW	4500 bkW	5650 bkW
Maximum firing pressure	-	165 bar	-	165 bar
Brake mean effective pressure	23 bar	23 bar	23 bar	23 bar
Mean piston speed	8 m/s	10 m/s	8 m/s	10 m/s
Idle speed	300 to 400 rpm	300 to 400 rpm	300 to 400 rpm	300 to 400 rpm
Counterclockwise firing order	1-12-9-4-5-8- 11-2-3-10-7-6		1-2-5-6-3-4-9-10- 15-16-11-12-13-14-7-8
Clockwise firing order	1-6-7-10-3-2- 11-8-5-4-9-12		1-8-7-14-13-12-11- 16-15-10-9-4-3-6-5-2
Combustion Air System
Air flow at 100% load (±5%)	336 m3/min.	417 m3/min.	430 m3/min.	545 m3/min.
Maximum air temperature at the air cleaner	45°C	45°C	45°C	45°C
Air temperature (after the aftercooler) alarm	92°C	92°C	92°C	92°C
Charge air pressure at 100% load (±10%)	-	2.77 bar	-	2.77 bar
Maximum inlet air restriction	380 mm H2O	380 mm H2O	380 mm H2O	380 mm H2O
Exhaust Gas System
Exhaust gas flow at 100% load (±6%)	697 m3/min.	975 m3/min.	911 m3/min.	1254 m3/min.
Exhaust port temperature alarm	550°C	550°C	550°C	550°C
Exhaust manifold temperature at 100% load	-	610°C	-	598°C
Exhaust manifold temperature (before turbine) alarm	650°C	650°C	650°C	650°C
Exhaust stack temperature at 100% load (±8%)	357°C	440°C	372°C	478°C
Exhaust stack temperature alarm	550°C	550°C	550°C	550°C
Maximum exhaust back pressure	254 mm H2O	254 mm H2O	254 mm H2O	254 mm H2O
Heat Balance at 100% Load (45°C Air, 32°C Sea Water)
Total heat rejected to sea water	2026 kW	2559 kW	2683 kW	3334 kW
Exhaust gas (±10%)	2547 kW	3981 kW	3596 kW	5083 kW
Radiation (±10%)	160 kW	216 kW	212 kW	279 kW
Fuel System
Maximum pump suction restriction	-.39 bar	-.39 bar	-.39 bar	-.39 bar
Maximum return line back pressure	3.5 bar	3.5 bar	3.5 bar	3.5 bar
Manifold pressure at 100% load	4.3 to 6.8 bar	4.3 to 6.8 bar	4.3 to 6.8 bar	4.3 to 6.8 bar
Supply flow rate for pipe sizing (±5%)	68.8 L/min	78.5 L/min	68.8 L/min	78.5 L/min
Return flow rate for pipe sizing (±5%)	53.2 L/min	60.1 L/min	48.6 L/min	55.2 L/min
Brake specific fuel consumption with jacket water pump and aftercooler/oilcooler pump (±3%)	199.6 g/kW-hr	203 g/kW-hr	197 g/kW-hr	204 g/kW-hr
Fuel filter differential pressure alarm	.75 bar	.75 bar	.75 bar	.75 bar
Lubrication Oil System
Minimum manifold pressure	3.8 bar	3.8 bar	3.8 bar	3.8 bar
Manifold pressure alarm (650 to 1000 rpm)	3.2 bar	3.2 bar	3.2 bar	3.2 bar
Manifold pressure alarm (0 to 650 rpm)	1.2 bar	1.2 bar	1.2 bar	1.2 bar
Manifold pressure shutdown (650 to 1000 rpm)	2.6 bar	2.6 bar	2.6 bar	2.6 bar
Manifold pressure shutdown (0 to 650 rpm)	1.05 bar	1.05 bar	1.05 bar	1.05 bar
Oil filter differential pressure alarm	0.7 bar	0.7 bar	0.7 bar	0.7 bar
Oil filter differential pressure shutdown	1.65 bar	1.65 bar	1.65 bar	1.65 bar
Manifold temperature alarm	92°C	92°C	92°C	92°C
Manifold temperature shutdown	98°C	98°C	98°C	98°C
Nominal manifold temperature to bearings	85°C	85°C	85°C	85°C
Brake specific oil consumption	0.6 g/kW-hr	0.6 g/kW-hr	0.6 g/kW-hr	0.6 g/kW-hr
Cylinder Block Cooling Water System
Nominal inlet water temperature	90°C	90°C	90°C	90°C
Maximum inlet temperature	95°C	95°C	95°C	95°C
Outlet temperature alarm	103°C	103°C	103°C	103°C
Outlet temperature shutdown	108°C	108°C	108°C	108°C
Pump rise at 90°C	1.9 bar	2.9 bar	1.9 bar	2.9 bar
Pump coolant flow capacity	2338 L/min	2920 L/min	2338 L/min	2920 L/min
Aftercooler and Oil Cooler Cooling Water System
Nominal inlet temperature	32°C	32°C	32°C	32°C
Inlet temperature alarm	39°C	39°C	39°C	39°C
Inlet temperature shutdown	42°C	42°C	42°C	42°C
Pump rise	1.94 bar	3.05 bar	1.94 bar	3.05 bar
Pump coolant flow capacity	1387 L/min	1730 L/min.	1387 L/min.	1730 L/min.
Minimum pump inlet pressure	-50 mbar	-50 mbar	-50 mbar	-50 mbar
Starting Air System
Nominal air pressure	12.25 bar	12.25 bar	12.25 bar	12.25 bar
Minimum air pressure	6.9 bar	6.9 bar	6.9 bar	6.9 bar
Maximum air pressure	15.75 bar	15.75 bar	15.75 bar	15.75 bar
Low air pressure alarm	8.75 bar	8.75 bar	8.75 bar	8.75 bar