C4.4 1104D-44T Direct Injection Engine Assembly 74.5KW

# C4.4 1104D-44T Direct Injection Engine Assembly (74.5KW) - Product Introduction   The C4.4 1104D-44T is a high-performance direct injection engine assembly designed for reliability, fuel efficiency, and adaptability across multiple industrial and mobile applications. With a rated power output of 74.5KW (equivalent to approximately 100 horsepower at standard operating conditions), it integrates advanced direct injection technology and robust mechanical design to meet the demanding performance and emission requirements of modern equipment.   ## 1. Core Technical Specifications   | Parameter                | Specification                                                                 | |--------------------------|-------------------------------------------------------------------------------| | Model Number             | C4.4 1104D-44T                                                                | | Engine Type              | Four-stroke, inline 4-cylinder, turbocharged (optional), water-cooled         | | Fuel System              | High-pressure direct injection (DI)                                           | | Rated Power              | 74.5KW @ Rated Speed (Typically 2,200-2,500 RPM, subject to application tuning) | | Displacement             | Approx. 4.4L (matching the "C4.4" model designation, optimized for torque output) | | Emission Standards       | Compliant with Tier 3 / Stage IIIA (adaptive to regional regulations)          | | Cooling System           | Forced liquid cooling (compatible with radiator systems for mobile/industrial use) | | Lubrication System       | Pressure-fed wet sump (ensures consistent oil supply to critical components)  | | Dry Weight               | Approx. 280-320 kg (varies by accessory configuration: e.g., alternator, starter) | | Service Interval         | 500-1,000 operating hours (depending on oil type and application load)        | ## 2. Key Features & Advantages   ### (1) High-Pressure Direct Injection (DI) Technology   The engine adopts a **high-pressure direct injection system** that delivers fuel directly into the combustion chamber at pressures up to 2,000 bar. This design:   - Maximizes fuel atomization, ensuring more complete combustion and reducing fuel consumption by 8-12% compared to indirect injection (IDI) engines of the same class.   - Minimizes unburned fuel and particulate emissions, aligning with global emission standards (Tier 3/Stage IIIA) without compromising power.   ### (2) Robust Durability & Low Maintenance   - **Heavy-Duty Cylinder Block/Crankshaft**: Constructed from high-strength cast iron, the cylinder block resists thermal stress and vibration, while the forged steel crankshaft enhances load-bearing capacity for long-term reliability (design life of 10,000+ operating hours).   - **Simplified Maintenance Design**: Accessible oil filters, fuel filters, and inspection ports reduce service time; the integrated coolant filtration system also extends the lifespan of the cooling circuit.   ### (3) Flexible Power & Torque Characteristics   With a torque curve optimized for "low-speed high torque," the C4.4 1104D-44T delivers peak torque (approx. 400-450 N·m) at 1,400-1,800 RPM. This feature makes it ideal for:   - Equipment requiring steady low-speed power (e.g., excavators, loaders).   - Stationary applications (e.g., generators, water pumps) where consistent torque prevents speed fluctuations under load.   ### (4) Thermal Management & Adaptability   - The water-cooled system, paired with a high-efficiency radiator (optional), maintains optimal operating temperature (85-95°C) even in extreme environments (ambient temperatures from -20°C to 50°C).   - Configurable accessories (e.g., turbochargers, air-to-air intercoolers, cold-start kits) allow customization for high-altitude (up to 3,000 meters) or cold-climate operations.   ## 3. Typical Applications   The C4.4 1104D-44T is engineered for versatility, making it suitable for both mobile and stationary use:   - **Construction Machinery**: Mini/mid-sized excavators, wheel loaders, skid steer loaders, and backhoes.   - **Agricultural Equipment**: Compact tractors, harvesters, and irrigation pumps.   - **Power Generation**: 50-60 kVA standby or prime generators (for commercial buildings, rural areas, or construction sites).   - **Material Handling**: Forklifts and conveyor drive systems.   ## 4. Compliance & Support   - **Emission Compliance**: Meets Tier 3 (U.S.), Stage IIIA (EU), and equivalent regional standards, ensuring legal operation in global markets.   - **After-Sales Support**: Backed by a comprehensive parts supply network and technical service, with optional extended warranties (1-3 years) for industrial customers.   This engine assembly balances power, efficiency, and durability, making it a reliable choice for demanding work environments where performance and low total cost of ownership are critical.