15N-G300

The unit delivers excellent high-altitude performance and reliable cold-start capability. Built with high-strength materials and featuring long-life design, it achieves extended maintenance intervals, with a rated power output of up to 250 kW

Basic Engine Specifications

• Model: HWC15N‑G330
• Speed: 1500 RPM & 1800 RPM
• Issue Date: 2024‑03‑26
• Compression Ratio: 12:1
• Bore: 135 mm
• Stroke: 169 mm
• Speed Regulation: ≤3%
• Aspiration: Turbocharged & Air‑to‑Air Intercooled
• Displacement: 14.5 L
• No. of Cylinders: 6

Test Conditions

Engine tested with water pump and oil pump; without air compressor, generator, fan, optional parts and drives.

Intake restriction: 3.7 kPa; Exhaust back pressure: 10 kPa.

Rated Power Data

Performance Data at 1500 rpm

Performance Data at 1800 rpm

General Notes

Performance data obtained under GB/T 18297 test conditions: ambient pressure 100 kPa, intake air temperature 25 °C.

Maximum continuous operating altitude: 2200 m.

Typical Engine Data

• Dry Weight: 1150 kg
• Moment of Inertia (rotating parts, no flywheel): 0.37 kg·m²
• Distance from CG to front face of cylinder block: 541 mm
• Distance from CG to crankshaft centerline (above): 163 mm
• Firing Order: 1‑5‑3‑6‑2‑4

Engine Mounting

• Maximum allowable static bending moment (rear face): 1356 N·m

Exhaust System

• Maximum exhaust back pressure: 10 kPa

Charge Air Cooling System

• Max allowed temperature difference (manifold vs ambient): 25 °C
• Max pressure drop across intercooler: 13 kPa
• Max intake manifold temperature (25 °C ambient): 50 °C
• Max intake manifold temperature: 58 °C

Air Intake System

• Max allowable intake restriction (heavy‑duty air cleaner):
  • Clean element: 3.7 kPa
  • Dirty element: 6 kPa
• Minimum dirt holding capacity: 53 g/litre/sec
• Max temperature rise to turbo inlet: 17 °C
• Recommended minimum intake ID: 76 mm

Lubrication System

• Normal oil pressure:
  • Low idle: 207 kPa
  • Rated speed: 345 kPa
• Max oil sump temperature: 121 °C
• Oil capacity (offset pan): max 32 L
• Minimum system capacity (sump + filter): 45.4 L
• Inclination limits (offset pan): front up 4°, others 0°

Cooling System

• Coolant capacity (engine only): 73 L
• Max external circuit resistance:
  • 1800 rpm: 35 kPa
  • 1500 rpm: 28 kPa
• Max static coolant height above crankshaft: 1.4 m
• Thermostat range: 82–95 °C
• Minimum pressure cap: 69 kPa
• Max coolant temp: standby 104 °C, prime 100 °C

Electrical System

Emission Data (GB 20891‑2007)

At 1500 rpm

• NOₓ: 9.2 g/kW·h
• HC: 1.3 g/kW·h
• CO: 5.0 g/kW·h
• Particulate: 0.70 g/kW·h

At 1800 rpm

• NOₓ: 9.2 g/kW·h
• HC: 1.3 g/kW·h
• CO: 5.0 g/kW·h
• Particulate: 0.54 g/kW·h

Thermal & Flow Performance

Item	Unit	1800 rpm Standby	1500 rpm Standby	1800 rpm Rated	1500 rpm Rated
Engine Speed	rpm	1800	1500	1800	1500
Low Idle Speed	rpm	750–850	750–850	750–850	750–850
Output Power	kW	346	330	310	300
Piston Speed	m/s	8.1	6.8	8.1	6.8
Friction Loss	kW	22	17	22	17
Coolant Flow	L/sec	4.0	3.3	4.0	3.3
Intake Flow	L/sec	295	276	257	248
Exhaust Flow	L/sec	755	547	675	480
Exhaust Temperature	°C	570	540	540	500
Air/Fuel Ratio	air:fuel	12:1	12:1	12:1	12:1
Ambient Heat Loss	kW	45	39	37	32
Coolant Heat Loss	kW	167	156	159	147
Exhaust Heat Loss	kW	267	253	248	236