Overview of the Sinotruk Howo 371 Engine of sinotruk howo
The Sinotruk Howo 371 Engine is a powerful diesel engine for heavy-duty vehicles. Built with advanced technology and high-quality parts, this engine delivers strong performance and long-lasting reliability, making it a preferred choice for truck manufacturers and fleet operators worldwide.
Engine Specifications
- Engine Make and Model: SINOTRUK Diesel, WD615.47 model, a 4-stroke direct injection diesel engine.
- Cylinder Configuration: 6-cylinder in-line, with water cooling, turbocharging, and intercooling.
- Displacement: 9.726 liters, balancing power and efficiency.
Performance Details
- Maximum Output: 371 HP at 2200 rpm (according to DIN standards).
- Maximum Torque: 1590 Nm at 1100-1600 rpm, ensuring optimal performance under heavy load.
Engine Dimensions
- Bore: 126 mm
- Stroke: 130 mm
- Compression Ratio: 17:1, contributing to fuel efficiency and engine performance.
Fuel and Oil Specifications
- Fuel Type: Diesel, delivering reliable power and meeting fuel consumption standards.
- Specific Fuel Consumption: 195 g/kWh, ensuring cost-effective operation.
- Engine Oil Capacity: 23 liters.
- Cooling System Capacity: 40 liters, maintaining the engine’s temperature under demanding conditions.
Additional Features
- Air Inlet: Turbocharging and intercooling for improved efficiency.
- Noise Level: ≤98 dB, ensuring quieter operation compared to many other diesel engines.
- Engine Weight: Approximately 850 kg, designed to be robust without affecting vehicle weight distribution.
Reliability and Durability
The sinotruk howo 371 engine is known for its reliability. It uses high-quality components and undergoes strict testing to ensure trouble-free operation. This engine is trusted by truck manufacturers and fleet operators for its long-lasting performance.
Emission Standards
The engine meets EURO-II emission standards, making it suitable for regions with specific environmental regulations.
Clutch and Transmission
- Clutch: Single-plate dry coil-spring clutch, with a 430mm diameter and hydraulic operation assisted by air.
- Transmission: Features the HW19710 transmission for smooth and efficient power delivery.
The Sinotruk Howo 371 Engine combines high performance, reliability, and fuel efficiency, making it ideal for heavy-duty trucks used in demanding applications.
Engine Specifications of sinotruk howo
The Sinotruk Howo 371 engine is a reliable and powerful diesel engine designed for heavy-duty use. Below are the key specifications for this engine:
- Make: SINOTRUK Diesel
- Engine Type: 4-Stroke direct injection diesel engine
- Engine Model: Euro II, WD615.47
- Cylinders: 6-cylinder in-line configuration
- Cooling System: Water-cooled with turbocharging and intercooling for better efficiency and performance
- Maximum Output: 371 hp at 2200 rpm (DIN standard). Some models may have a maximum output of 336 hp.
- Maximum Torque: 1590 Nm at 1100-1600 rpm, with some models offering 1450 Nm at 1300-1600 rpm.
- Displacement: 9.726 L
- Bore: 126 mm
- Stroke: 130 mm
- Compression Ratio: 17:1
- Specific Fuel Consumption: 195 g/kWh (standard) and 198 g/kWh for some models.
- Engine Oil Filling Quantity: 23 L
- Cooling System Filling Quantity: 40 L (long-term)
- Thermostat Opening Temperature: 71℃
- Air Compressor: Twin-cylinder air compressor
- Weight: 850 kg
- Noise Level: ≤98 dB
- Air Valve: 2 valves
- Oil Pressure: 420-550 kPa (rated), 120-250 kPa (idle point)
- Emission Standard: EURO-II
Other Important Specifications
- Engine Cooling System: Water-cooled, with turbocharging and intercooling to optimize engine performance.
- Noise Control: The engine operates at a noise level of ≤98 dB.
- Oil Pressure: The engine runs at an oil pressure of 420-550 kPa under rated conditions, ensuring smooth operation at different speeds.
Transmission and Gearbox of sinotruk howo
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Clutch
The Sinotruk Howo 371 engine features a high-performance single-plate dry coil-spring clutch. This system ensures efficient power transfer and smooth gear shifts, which are vital for maintaining the truck’s performance in different conditions.
Specifications and Features
- Type: Single-plate dry coil-spring clutch
- Diameter: 430 mm
- Operation: The clutch operates hydraulically with air assistance, ensuring reliable engagement and disengagement during use.
- Pedal Force: The maximum pedal force required is 190N with assistance, making it easier for the driver to engage and disengage the clutch without excessive effort.
Pedal Travel
- Maximum stroke: 200 mm
- Free stroke:
- 25 mm for pull
- 40 mm for push
Adjustment and Maintenance
Proper adjustment is necessary to ensure smooth operation. Key points include:
- Clutch clearance: The clearance between the master cylinder pushrod and piston should be 0.5mm to 1mm for optimal performance.
- Clutch brake control valve: Adjust the control valve so that the master cylinder pushrod travel is at least 32 mm when the clutch pedal is fully depressed.
Air in Hydraulic System
To prevent shifting problems, it is essential to release air from the hydraulic system. This involves venting the exhaust valve of the booster cylinder and repeating the process several times for smooth operation.
By maintaining these specifications and adjustments, the Sinotruk Howo 371 clutch system will perform at its best, ensuring reliable and efficient driving.
Axles and Steering of sinotruk howo
The Sinotruk Howo 371 engine features strong axles and a dependable steering system, providing excellent performance and load capacity for heavy-duty tasks.
Front Axle
- Steering Design: The front axle uses a double T-cross section beam, which improves its strength and stability during operation.
- Loading Capacity:
- 8X4 model: The front axle can handle 7000 kg.
- 6X4 model: The front axle can handle 9000 kg.
Rear Axles
- Axle Housing and Reduction: The rear axles include a pressed axle housing and a central single reduction system. They also feature planetary wheel reduction and a differential lock, improving traction and reliability.
- Loading Capacity:
- 8X4 model: The rear axles can carry 18000 kg (with a double axle configuration).
- 6X4 model: The rear axles can carry 17500 kg (with a double axle configuration).
Steering System
- Power Steering: The Howo 371 uses ZF power steering, specifically the ZF8098 model, which offers efficient hydraulic steering with power assistance, improving maneuverability and reducing driver effort.
- Steering Ratio: The steering ratio of the Howo 371 ranges from 22.2 to 26.2, ensuring precise control and stability at different speeds.
- Hydraulic Steering System: The hydraulic system enhances the steering performance, making it smoother and more responsive during turns and tight maneuvers.
Performance and Capabilities
The Sinotruk Howo 371 engine offers strong performance, making it a reliable choice for heavy-duty applications. Here are the key features:
Maximum Driving Speed
- The Sinotruk Howo 371 engine can reach a maximum driving speed of 80 km/h, ensuring fast and efficient transportation for long-distance trips.
Fuel Consumption per Kilometer
- The fuel consumption of the Sinotruk Howo 371 engine ranges from 0.30 to 0.33 L/km, balancing efficiency and power.
- For the 6×4 tractor model, fuel consumption per 100 km varies based on the load:
- 13.9 L (100% empty)
- 34 L (100% full load)
- 23.8 L (50% empty & 50% full load)
Loading Capacity
- The 6×4 model can carry up to 30 tons, making it ideal for medium to heavy freight transport.
- The 8×4 model can carry up to 45-50 tons, suitable for larger, heavier loads.
Gross Vehicle Weight
- The gross vehicle weight of the Sinotruk Howo 371 engine can reach 25,000 kg.
- The maximum permissible total mass can go up to 50,000 kg for certain models, meeting the needs of larger transport tasks.
Maximum Torque and Output
- The engine delivers a maximum torque of 1590 Nm at 1100-1600 rpm, providing powerful acceleration and stability under heavy loads.
- The engine offers a maximum output of 371 HP at 2200 rpm, ensuring consistent power for demanding driving conditions.
Gradeability and Turning Radius
- The maximum gradeability of the Sinotruk Howo 371 engine is 20%, making it suitable for hilly and mountainous terrain.
- The minimum turning diameter ranges from 15 to 17 meters, offering flexibility in tight spaces.
Transmission and Clutch
- The standard HW19710 transmission provides 10 forward gears and 2 reverse gears, allowing smooth and efficient gear shifting.
- Some models come with an optional 12-speed transmission for better control.
- The single-plate dry coil-spring clutch (diameter 430mm) is hydraulically operated with air assistance, offering strong engagement and durability. An optional reinforced diaphragm clutch (also 430mm) is available for extra performance.
Electrical and Brake Systems of sinotruk howo
The Sinotruk Howo 371 features advanced electrical and brake systems for reliable performance and safety.
Electrical System
- Operating Voltage: The electrical system operates on a 24V, negative-grounded configuration, ensuring efficient power distribution.
- Key Features: The electrical system includes essential components such as:
- Cigar Lighter
- Horn
- Headlamps
- Fog Lights
- Brake Lights
- Indicators
- Reverse Light
- Backing Alarm
These features improve safety and convenience, providing clear visibility and communication with other road users.
Brake System
- Service Brake: The Howo 371 uses a dual circuit compressed air brake system, ensuring strong and reliable braking performance for safe stops in various conditions.
- Parking Brake: The parking brake operates with spring energy and compressed air on the rear wheels, offering added security when the vehicle is stationary.
- ABS: Some models offer an Anti-lock Braking System (ABS), which helps prevent wheel lock-up during emergency braking, improving safety.
- Air Pressure Gauges: The vehicle has two air pressure gauges that monitor the brake circuits, giving real-time air pressure information for optimal braking performance.
These systems work together to ensure smooth operation, safety, and reliability.
Dimensions and Other Specifications of sinotruk howo
The Sinotruk Howo 371 engine models offer strong performance with a variety of dimensions and specifications suited to different vehicle types. Below are the key details for the 6×4 models, including dump trucks and tractor trucks.
Overall Dimensions
- 6×4 Dump Truck: 6800mm × 2496mm × 2958mm
- 6×4 Tractor Truck: 6800mm × 2496mm × 2958mm
- 6×4 General Models: 8545mm × 2496mm × 3450mm
Wheelbase
- 6×4 Dump Truck: 3825mm + 1350mm
- 6×4 Tractor Truck: 3200mm + 1400mm
Ground Clearance and Angle
- Ground Clearance: 19° (front) / 23° (rear) for 6×4 models
Track and Weight
- Front Wheel Track: 2022mm
- Rear Wheel Track: 1830mm
- Weight for 6×4 Dump Truck: 12,600 kg
- Weight for 6×4 Tractor Truck: 9180 kg
Speed and Fuel Tank
- Maximum Speed (6×4 Dump Truck): 75 km/h
- Maximum Speed (6×4 Tractor Truck): 90-102 km/h
- Fuel Tank Capacity (6×4 Tractor Truck): 400 L
Tires
- Tire Size: 295/80R22.5 or 12R22.5, tubeless tire with 10+1 spare
Brake System
- Service Brake: Dual circuit compressed air brake
- Parking Brake: Spring energy, compressed air operating on rear wheels
- Auxiliary Brake: Engine exhaust brake
Steering and Axles
- Hydraulic Steering: With power assistance, model 8198
- Front Axle: HF7
- Rear Axle: ST16
In conclusion, the Sinotruk Howo 371 engine stands out for its robust performance, fuel efficiency, and reliability. Designed for heavy-duty applications, it offers a balanced combination of power and durability, ensuring that trucks equipped with this engine can handle even the most demanding tasks. Whether it’s the cutting-edge technology or the commitment to quality, the Howo 371 continues to be a trusted choice for fleet operators and manufacturers alike.https://www.youtube.com/watch?v=uuZiB4iCh6s
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