EP-4 Multi-Fueled Engine

The EP-4 Engine is an air cooled horizontally opposed piston engine with electronically controlled fuel injection. Compared with its counterparts in the market, the engine is light weighted, consistent in performance, robust and maintenance friendly. EP-4 is an ideal choice to power fixed-wing UAV and VTOL of MTOW 25kg-35kg.


Technical Parameter
Configuration 2Cyl. Horizontally Opposed Displacement 68ml
Bore × Stroke 38mm×30mm Speed Range 1800rpm~8500rpm
Compression Ratio 10.5:1
Lubrication Oil Gas Lubrication Fuel Delivery Electronic Fuel Injection
Fuel Type 3# JET Fuel (or 92# Gasoline and Above, Aviation Gasoline)
Starting Method External Starter Starting, Integrated Starter Starting
Starting Conditions Cylinder Temperature ≥ 85℃(JET Fuel),Throttle Position ≥ 25%
Weight 2.6kg
Fuel Consumption 503g/kW·h Rated Power 4.1kW@8000rpm
Max Torque 5.1N·m@6000rpm Generator Customized