Description
DLE170 EFI ENGINE — High-Performance Electronic Fuel Injection Engine for Industrial UAVs
The DLE170 EFI is a high-power, high-efficiency two-stroke engine developed specifically for industrial UAV applications. Equipped with a fully upgraded electronic fuel injection (EFI) system, it delivers stable performance, superior fuel economy, and reliable operation across a wide range of environments. Its outstanding power-to-weight ratio makes it an ideal choice for heavy-lift fixed-wing platforms, hybrid VTOL systems, and long-endurance missions.
Key Features
Advanced Electronic Fuel Injection System
The DLE170 EFI uses a precision-controlled EFI module with a self-priming fuel pump and closed-loop pressure regulation. Fuel is delivered consistently without the need for a return line, ensuring stable operation during high-G maneuvers, climbing, banking, and long-distance flights. The system maintains optimal combustion under varying temperatures and altitudes, offering far better stability than carburetor-based engines.
Real-Time Engine Telemetry
The EFI controller outputs real-time running data through an RS232 protocol, allowing seamless integration with professional flight-control systems. Users can monitor fuel status, RPM, temperature and engine health in real time—critical for mission safety and performance tuning.
High Power Output with Low Weight
With a maximum output of 17.5 HP at 8,500 rpm, the DLE170 EFI provides exceptional thrust for medium-to-large UAV platforms while keeping the overall system weight low. This efficiency directly contributes to longer endurance, higher payload capacity, and improved operational reliability.
Designed for Harsh Environments
The engine is engineered to operate between -20°C and +50°C, ensuring dependable performance in extreme cold, desert heat, high-altitude regions, and maritime operations.
Technical Specifications
Engine Power: 17.5 HP @ 8,500 rpm
Static Thrust: approx. 35 kg at low altitude / approx. 31.5 kg at 1,800 m
Displacement: 170 cc
Recommended Propellers: 30×10, 30×12, or 32×10
Lubrication Ratio: 40:1
Power Supply (EFI System): 12 V
EFI Power Consumption: approx. 1,000 mAh per hour (typical)
Engine Weight (with air intake): 4.1 kg
ECU Weight: 110 g
Fuel Pump Weight: 170 g × 2
Operating Temperature: –20°C to +50°C
Alternator output: 12v 80w (Optional for the version with alternator & starter)
Package Includes
DLE170 EFI Engine (with intake system)
EFI ECU Module
Self-priming Fuel Pump
Complete Wiring Harness
CDI Ignition Module
Shock-absorbing Engine Mount
12v 80w Alternator – Optional
Electric Starter – Optional
Applications
The DLE170 EFI is suitable for a wide range of high-performance UAV platforms, including:
* Long-endurance fixed-wing UAVs
* VTOL/fixed-wing hybrid drones
* Heavy-lift industrial UAV systems
* Surveying, mapping, inspection and monitoring missions
* High-altitude and extreme-environment operations
Its reliable EFI system and powerful output make it the preferred engine for professional UAV integrators seeking maximum performance with long-term operational stability.






