32CLX

HIGH RELIABILITY			HIGH EFFICIENCY
The name 'Niigata Diesel' has gained a wide reputation from the domestic and foreign users involved, as a 'reliable and high performance diesel engine' Now, by consolidating its wide diesel engine experience with state-of-the-art technologies, NIIGATA proudly presents its newly developed, high performance Model 32CLX diesel, specially designed to burn heavy fuel up to 700cSt (at 50 degC) viscosity and provide low fuel consumption.
TO BURN HEAVY FUEL			EASY MAINTENANCE
NIIGATA 32CLX ENGINE, CROSS SECTION

　

INJECTOR NOZZLE TEMPERATURE CONTROLLED BY CYLINDER COOLANT FOR USE OF HEAVY FUEL. | TO BURN HEAVY FUEL	HIGH-EFFICIENCY TURBOCHARGERS AND CONSTANT-PRESSURE OR IMPULSE SUPERCHARGING. | HIGH PERFORMANCE.
'CAGE' TYPE VALVES (VALVE SEATS COOLED FOR USE OF HEAVY FUEL) AND VALVE ROTATORS. | LONG LIFE AND EASY MAINTENANCE USING HEAVY FUEL.	RIGID CYLINDER HEAD WITH UNIQUE INLET AND EXHAUST  PORT ARRANGEMENT. | HIGH RELIABILTY.
SPECIAL WEAR-RESISTANT, CAST IRON, BORE-COOLED CYLINDER LINERS. | REDUCED WEAR.	HIGH PRESSURE FUEL INJECTION PUMPS. 　 | LOW FUEL CONSUMPTION.
TWO PIECE PISTONS WITH HEATRESISTANT STEEL CROWNS AND DUCTILE CAST IRON SKIRTS. | HIGH, RELIABLE PERFORMANCE.	LATERALLY REMOVABLE CAMSHAFT. 　 | EASY MAINTENANCE.
SPECIAL 'R-R' PROCESS FORGED STEEL CRANKSHAFT WITH TORSIONAL VIBRATION DAMPER AT COUNTER-COUPLING END. | HIGH RELIABILITY.	RIGID CYLINDER BLOCK. 　 | HIGH RELIABILITY.
BALANCED WEB CONTERWEIGHTS. 　 | REDUCED VIBRATION	STAMP FORGED, SPECIAL STEEL CONNECTING RODS. GROUND SHANK AND SERRATED MATCHING BIG ENDS. | HIGH RELIABILITY.
	SHELL-TYPE, 'KELMET' (COPPER LEAD ALLOY) BEARINGS. | LONG SERVICE LIFE. EASY MAINTENANCE.

　

GENERAL SPECIFICATIONS

　

MODEL	L32CLX	V32CLX
Type	4-cycle with turbocharger(s) and air cooler(s)
Configuration	In-line	60 degC V-form
Cylinders	6 or 8	12, 16 or 18
Bore	320 mm
Stroke	420 mm
Displacement	33.76 l/cyl.
Rotation direction	Clockwise (Viewing from the coupling side)
Fuel oil	Gas oil, diesel oil or heavy fuel

　

ENGINE OUTPUT

　

MODEL ITEM		6L32CLX		8L32CLX		12V32CLX		16V32CLX		18V32CLX
Frequency	Hz	50	60	50	60	50	60	50	60	50	50
Engine Output	PS	3 000		4 000		6 000		8 000		9 000
	kW	2 206		2 942		4 413		5 884		6 619
Generator Output	kW	2 100		2 800		4 240		5 680		6 400
Engine Speed	rpm	600
Brake Mean Effective Pressure	MPa (kgf/cm2)	2.18  (22.2)
Mean Piston Speed	m/s	8.4

>>	The output figures shown in the table represent the rating under the following standard reference conditions. If site conditions is different from the standard reference conditions, the output shall be adjusted from the above figures. Standard Reference Conditions :
		1) Ambient temperature: 40 degC 2) Cooling water (air cooler inlet) temperature: 35 degC 3) Atmospheric pressure: 101.3 kPa (760 mm Hg)

　

DIMENSIONS & MASS

FOR GENERATION APPLICATION

DIMENSIONS MODEL	A	B	H	J	K	L	M
6L32CLX	5 525	3 800	3 329	2 060	3 200	8 725	5 000
8L32CLX	6 725	4 940	3 479	2 060	3 400	10 125	5 000
12V32CLX	5 790	3 905	3 140	3 255	3 700	9 490	5 500
16V32CLX	6 930	5 045	3 245	3 560	4 200	11 130	5 500
18V32CLX	7 500	5 615	3 245	3 560	4 500	12 000	5 500

　

DIMENSIONS MODEL	N	P	Q	Mass (t)
				Engine	Generator
6L32CLX	3 000	3 500	8 400	30	12
8L32CLX	3 000	3 500	9 700	40	16
12V32CLX	3 500	4 000	8 700	48.5	19
16V32CLX	3 500	4 000	10 500	58.5	22
18V32CLX	3 500	4 000	11 700	63.5	25

Note:
  1) The dimensions of foundation blocks shall be subject to the geological conditions.
  2) The mass and dimensions of generator shall be subject to the electrical design.




　

DESIGN & CONSTRUCTION FEATURES

GENERAL

The NIIGATA 32CLX diesel engine is an ultra-modern, high power, 4-cycle, medium speed engine, designed to provide reliable power for industrial or marine service under long, arduous conditions, anywhere throughout the world. The design, based on many years of diesel engine manufacture, incorporates maximum reliability with minimum maintenance and fuel consumption at low intial cost.

DESIGN AND CONSTRUCTION
CYLINDER BLOCK (FRAME) Rigid, box-girder section design with mounting feet extended along the entire length of the engine. High grade cast iron, carrying the crankshaft in main bearings, with incorporated air intake trunk, lubricating oil and coolant water channels. All working parts inside the frame are easily accessed through lightweight doors, some incorporating explosion-proof valves, provided at the front and rear of the frame.		CRANKSHAFT One-piece, special forged steel, manufactured by the 'R-R' process for ensured strength. Oil passages through the shaft provide continuous oil feed to both connecting rod bearings and pistons for optimum piston crown cooling. Balanced counterweights fitted on each web, drastically reduces mechanical vibration. A torsional vibration damper fitted to the crankshaft's free end enhances crankshaft and alternator shaft reliability.
MAIN BEARINGS Shell type, steel-backed copper-lead alloy with Pb-Snoverlay, housed in the frame and caps. This type of bearing provides ultra-strong bearing force and long service life.		ANCHOR BEARING A crankshaft anchor bearing, consisting of the same shell type journal and thrust bearings as the crankshaft, is supplied to the coupling side of the frame for precise crankshaft location and improved shaft deflection.
CYLINDER HEADS AND VALVES High grade cast iron cylinder heads provide high thermal stress resistance. Effective waterways are provided throughout for totally adeguate coolant circulation. The valve gear, with two intake and two exhaust valves, is totally enclosed in a cylinder head bonnet and lubricated by an oil system independent from the engine oil system. The intake and exhaust manifolds are located at the same side of the counter-camshaft and arranged so that they may be left undisturbed when one or more cylinder heads are removed for partial disassembly. A unique inlet and exhaust port arrangement enables two types of valve to be used, one being the inserted valve-seat type, of which seat rings are inserted into the cylinder head and directly cooled by the jacket coolant. The other available valve type is the valve-cage type in which cages can be easily withdrawn without necessitating removal of the cylinder head, thereby providing easy maintenance when using heavy fuel.		CONNECTING RODS Made of special pressed steel, "I" section connecting rod shank provide high regidity and strength. Large end bearing of a type similar to the main bearing is secured by four high tensile steel bolts. Bush type small end bearing is shrink-fitted. The large-end 120-degree serrated matching surfaces ensure high rigidity and serration groove reliability.
		CAMSHAFT(S) Driven by a crankshaft gear through an idler gear, individual case-hardened cams (intake, exhaust, and fuel) are keyed onto the camshaft. The start-air distributor is located at the shaft end. The camshaft can be easily removed when required.
CYLINDER LINERS Special cast iron, wet type liners are precision-honed inside the bore. Liners are secured to the top of the frame by copper joints and are free to expand at the lower end guide. The upper section of the liners are provided with a "Bore Cooling" system consisting of a number of coolant passageways to ensure moderate cooling.		FUEL INJECTION PUMPS An individual Bosch type high pressure pump is mounted at each cylinder, just above the camshaft, and actuated by the camshaft's fuel cam, enabling individual pump adjustment for equal load distribution across all cylinders.
		FUEL INJECTORS Fuel injectors consist of a nozzle and body. When heavy fuel is used, nozzle temperature is suitably controlled by the cylinder coolant.
PISTONS Two types of piston are avaliable, the "composite type" with a heat-resistant steel crown and ductile cast iron skirt, and the ductile cast iron "mono-type" piston. Both types are designed to reduce mechanical and thermal stresses. Cooling oil is induced into the cooling chamber through the connecting rod for optimum piston crown cooling. Three compression and two oil scraper rings are supplied. Specially designed top rings minimize gas blow-by through the ring gap. Two coil expansion type oil scraper rings ensure normal oil consumption.		GOVERNOR A camshaft-gear driven, Woodward-type governor, controls the fuel pump's rackrod through a interconnecting linkage. Speed regulation is suitable for parallel generator operation. Remote speed adjustment is also provided for synchronization.
		TURBOCHARGER(S) Highly efficient, exhaust-gas driven, water cooled, oil-bath lubricating type turbocharger provided. Either an air intake filter-silencer is available, depending upon site conditions. Either impulse or constant-pressure system is provided, dependent upon engine application.