The 75kW-class aviation heavy oil piston engine is a spark-ignited, four-stroke, direct-injection heavy oil aviation piston engine independently developed by the Beijing Power Machinery Research Institute. This engine features a high power-to-weight ratio, extended endurance, low operating costs, high service ceiling, and the unique capability of operating solely on heavy fuel oil. It incorporates multiple advanced technologies, including an intelligent high-precision electronic control system, high-efficiency heavy fuel oil atomization technology, heavy fuel oil knock suppression technology, and a high-efficiency cold start system for heavy fuel oil. Suitable for medium-to-high altitude, low-speed fixed-wing and rotary-wing unmanned aerial vehicles (UAVs), it meets the requirements for single-fuel heavy oil operation in aircraft.
Key Performance Specifications
Fuel: Aviation kerosene RP-3, RP-5, light diesel
Rated Power: 75 kW @ 5500 rpm
Takeoff Power: 95 kW @ 5500 rpm
Minimum Fuel Consumption Rate: 270 g/(kW·h)
Maximum Takeoff Altitude: 5000 m
Rated Power Holding Altitude: 8000 m
Weight: 85 kg (including reducer, radiator, fuel pump, and other accessories)
Dimensions: 668 mm × 576 mm × 541 mm
