Cummins QSB6.7 Engine, Power 164KW, 2300 RPM

The Cummins QSB6.7 engine (164KW @ 2300 RPM) is a mid-range, high-reliability diesel engine tailored for off-highway and industrial applications, balancing power density, fuel efficiency, and emissions compliance. ### 1. Basic Information - **Manufacturer**: Cummins Inc., a global leader in diesel and alternative fuel engines. - **Engine Series**: Belongs to Cummins’ **QSB Series** (Quantum System B), designed specifically for heavy-duty off-highway use. - **Engine Configuration**: 4-stroke, inline 6-cylinder turbocharged diesel engine. - **Displacement**: 6.7 liters (409 cubic inches), optimizing power output while keeping the size compact for equipment integration. - **Key Rating**: 164 kW (220 hp) rated power at a rated speed of **2300 RPM** — a common high-torque, high-efficiency operating point for heavy loads. ### 2. Core Technical Features - **Turbocharging with Aftercooling**: Equipped with a Cummins wastegated turbocharger and air-to-air aftercooler. This setup boosts intake air density, ensuring complete fuel combustion, enhancing low-speed torque response, and preventing engine overheating under high-load conditions. - **High-Pressure Common-Rail (HPCR) Fuel System**: Uses Cummins’ proprietary HPCR technology, which delivers fuel at pressures up to 2000 bar. It enables precise control of injection timing and fuel quantity, reducing fuel consumption by 5–8% compared to older generations while minimizing noise and particulate emissions. - **Emission Compliance**: Meets strict global off-highway emission standards, including **EU Stage V**, **U.S. EPA Tier 4 Final**, and **China Non-road National IV**. It achieves this via an integrated aftertreatment system (DOC + DPF + SCR) that effectively reduces NOx and particulate matter (PM) without sacrificing performance. - **Durability & Serviceability**: Features a robust cast-iron cylinder block and a forged steel crankshaft for long-term load-bearing capacity. Key components (e.g., pistons, valves) use wear-resistant coatings, extending service intervals to 500 hours. Additionally, the engine has a centralized service point design, simplifying routine maintenance like oil changes and filter replacements. ### 3. Performance Specifications (164KW @ 2300 RPM Rating) | Parameter               | Value                  | |-------------------------|------------------------| | Rated Power             | 164 kW (220 hp)        | | Rated Speed             | 2300 RPM               | | Peak Torque             | Up to 970 N·m (at 1400–1800 RPM) | | Fuel Consumption (Typ.) | ~205 g/kWh (at rated load) | | Oil Capacity            | 19 liters              | | Operating Temperature Range | -30°C to 55°C      | ### 4. Typical Applications This 164KW-rated QSB6.7 engine is factory-calibrated for heavy-duty off-highway equipment requiring consistent mid-range power, including: - Construction machinery: Medium excavators (e.g., 20–30 ton class), wheel loaders, and compactors. - Agricultural machinery: Large tractors, combine harvesters, and forage harvesters. - Industrial equipment: Stationary generators (50–100 kVA), marine auxiliary power units (APUs), and material handling equipment (forklifts, reach stackers).