Product Brief Introduction
The SW220B micro turbojet UAV gasoline engine is an independently developed miniature gas turbine power unit exclusively designed for large high-performance civilian unmanned aerial vehicles and commercial RC jet models. As an upgraded high-thrust UAV gasoline engine compared with smaller models, it integrates self-developed brushless starter, anti-bubble four-eye fuel pump and single-bus V3 ECU control system, solving common defects of traditional micro jet power units such as unstable fuel supply, complicated wiring and limited safety control functions.
Adopting compact lightweight integrated design, the whole unit has an outer diameter of 115.5mm, total length of 278.5mm and net weight of only 1740g, effectively reducing aircraft dead weight and reserving abundant cabin space for aerial survey cameras, data transmission modules and other civilian payload equipment. It takes standard aviation kerosene as fuel with a 3%–5% lubricating oil mixing ratio, and the maximum fuel consumption is controlled below 620g/min under full-power operating state.
All design, production and bench testing standards of this drone gasoline engine are restricted to non-military civilian commercial, educational and recreational aviation fields. The complete supporting accessory set is delivered together with the main engine to shorten customer assembly and debugging cycles globally.
Unified Integrated Technical Parameter Table
| Parameter Category | Item Name | Specific Parameter Value |
|---|---|---|
| Main Engine Body | Product Model | SW220B |
| Main Engine Body | Maximum Static Thrust | 22kg / 220N |
| Main Engine Body | Outer Diameter | 115.5mm |
| Main Engine Body | Overall Length | 278.5mm |
| Main Engine Body | Net Dry Weight | 1740g |
| Main Engine Body | Usable Rotational Speed Range | 38000 ~ 115000 rpm |
| Main Engine Body | Stable Idle Speed | 38000 rpm |
| Main Engine Body | Rated Maximum Exhaust Temperature | 750℃ |
| Main Engine Body | Maximum Fuel Consumption | ≤620g/min |
| Main Engine Body | Applicable Fuel | Aviation Kerosene |
| Main Engine Body | Standard Lubricating Oil Mix Ratio | 3% ~ 5% |
| Main Engine Body | Standard Maintenance Cycle | 25 Flight Hours |
| Brushless Starter Motor | Rated Operating Speed | 97000 rpm |
| Brushless Starter Motor | Pop-Up Time | 0.5S |
| Brushless Starter Motor | Pop-Up Working Voltage | 4V |
| Brushless Starter Motor | Stable Running Voltage | 4V |
| Brushless Starter Motor | Cooling Rotational Speed | 5000 rpm |
| ECU Control System | Main Chip Specification | 32-bit High-Speed Processor |
| ECU Control System | Data Transmission Mode | Single Bus Telemetry Signal |
| ECU Control System | Fuel Pump Startup Voltage Range | 0.5–1V |
| ECU Control System | RPM Acceleration Slope Coefficient | 100 |
| ECU Control System | Fuel Pump Output Slope Coefficient | 3 |
| ECU Control System | Ignition Fuel Valve Opening Value | 40 |
| ECU Control System | Ignition Trigger Rotational Speed | 3000 rpm |
| ECU Control System | Preheating Rotational Speed | 5000 rpm |
| ECU Control System | Clutch Separation Rotational Speed | 20000 rpm |
| ECU Control System | Acceleration Curve Parameter | 25 |
| ECU Control System | Deceleration Curve Parameter | 25 |
| ECU Control System | Real-Time Temperature Limit | ≤1000℃ |
| ECU Control System | Minimum Working Voltage | ≥10V |
| ECU Control System | Fuel Pump Voltage Protection Limit | 13V |
| ECU Control System | Auto Restart After Shutdown | Switchable On / Off |
| Standard Full Kit Accessories | Complete Matching Parts | Main Engine, SWP50D Four-Eye Fuel Pump, V3 ECU, GSU Display Terminal, Aviation Fuel Filter, Fuel Ball Valve, Power Line, Throttle Line, Telemetry Signal Line |
Core Independent Technical Highlights
Self-Developed Integrated Brushless Starter Motor
This UAV gasoline engine is equipped with an in-house developed brushless starting motor with a rated speed of 97000 rpm. The integrated compact layout will not occupy extra airframe installation space, and it can output stable startup torque under low-temperature and high-altitude environments to reduce cold start failure risks. The motor housing adopts heat dissipation coating treatment, maintaining stable performance under frequent repeated startup operations and extending the overall service life of the drone gasoline engine.
Four-Eye Double-Inlet Anti-Bubble Fuel Pump System
The matched SWP50D fuel pump features exclusive double-inlet double-outlet pipeline structure with a 6mm oil inlet and 4mm oil outlet. The internal multi-layer diversion structure fully crushes air bubbles mixed in aviation kerosene, fundamentally solving the hidden danger of engine flameout caused by oil circuit air blockage during climbing and high-speed flight. The pump body is manufactured with anti-corrosion aluminum alloy material, resisting long-term fuel erosion and lowering replacement frequency for commercial users.
Simplified Single-Bus Communication Architecture
Different from traditional multi-wire scattered signal transmission micro jet engines, this drone gasoline engine uses only one single bus to complete all data interaction between ECU, display terminal and flight controller, including real-time RPM, exhaust temperature and throttle signals. The internal wiring layout of civilian aircraft is greatly simplified, reducing wiring fault points and improving the anti-interference performance of the whole electrical system.
V3 32-Bit Intelligent ECU Control Unit
The supporting V3 ECU is built with high-speed 32-bit computing chip, equipped with two core practical functions: fixed RPM locking and automatic restart after accidental shutdown. When temporary fuel fluctuation or instantaneous power loss occurs during flight, the ECU will automatically trigger the ignition program without ground manual operation, significantly boosting safety for long-distance civilian aerial missions. Reserved expansion ports support real-time telemetry data backhaul to ground monitoring equipment.
High-Temperature Resistant Integrated Turbine Main Body
Turbine rotor, combustion chamber and nozzle of this UAV gasoline engine are all cast from aviation superalloy, which can continuously bear 750℃ exhaust temperature under full-load operation without deformation or power attenuation. The streamlined outer casing cuts flight wind resistance, and symmetrical standard mounting lugs are reserved, supporting direct installation on most mainstream large civilian fixed-wing UAVs and RC jet aircraft without customized mechanical processing.
Civilian Commercial Application Scenarios
The SW220B micro turbojet drone gasoline engine is only suitable for non-military civilian industrial, educational and recreational aviation fields:
- High-speed aerial survey & mapping: long-distance mountain terrain scanning, highway infrastructure inspection, large-area land resource general survey
- Civilian environmental monitoring: full-basin river water quality patrol, wide-range forest vegetation growth observation, wild ecological resource investigation
- Agricultural industrial UAV equipment: large orchard rapid patrol, farm crop high-speed growth inspection
- University aerospace laboratory research platforms: aerodynamic test aircraft, miniature turbine power R&D prototypes
- Premium large-scale RC jet aircraft, commercial aviation exhibition demonstration models
Packaging, Delivery & Downloadable Technical Files
Standard Export Packaging: Custom shock-absorbing aluminum alloy inner box with temperature-insulated foam lining + fumigated thick wooden outer case. All precision turbine parts and electronic accessories are wrapped separately with anti-rust grease paper and anti-static film to avoid collision damage during cross-border sea and air transportation.
Supported International Trade Terms: EXW, FOB, CIF, DDP door-to-door global delivery, cooperating with professional aerospace dedicated logistics suppliers.
Bulk Customized Packaging: Reinforced anti-collision wooden boxes can be customized for large wholesale orders, with independent partition protection for each accessory.
Delivery Lead Time: Single sample full set shipped within 12 working days; mass batch production orders delivered within 22–28 working days after deposit confirmation.
Free Downloadable Documents After Order Confirmation: SW220B technical specification PDF, SW220B dimension drawing PDF, official installation and operation manual PDF.
Factory R&D & Strict Quality Inspection Flow
The manufacturer owns complete independent micro-turbine R&D laboratory, CNC intelligent production workshop and full-function bench test equipment. Each finished SW220B UAV gasoline engine will pass six major inspection links before factory shipment:
- Raw material incoming inspection: material composition and dimensional calibration for high-temperature alloy rotor, ECU chip, fuel pump and all sealing components.
- Ultra-high-speed rotor dynamic balancing calibration and real-time vibration value detection.
- Continuous 3-hour full-load bench test, synchronously recording thrust, rotational speed, exhaust temperature and fuel consumption data.
- Low-temperature and high-altitude simulation cold start test to verify startup stability under extreme environments.
- Complete full-set accessory matching inspection, functional test for all wiring harnesses, fuel components and data display terminals.
- Finished product anti-rust protection, anti-static treatment and final packaging inspection.
Each drone gasoline engine is assigned an exclusive independent serial number, all bench test data and production records are permanently archived to provide traceable quality guarantee for global civilian UAV integrators and dealers.
Frequently Asked Questions
FAQ 1 What fuel and lubrication ratio should be used for SW220B UAV gasoline engine? Is ethanol-containing fuel permitted?
Answer: This UAV gasoline engine must use pure aviation kerosene mixed with dedicated turbine lubricating oil at a mixing ratio of 3% to 5%. Any fuel containing ethanol is strictly prohibited; ethanol will generate massive carbon deposits inside the combustion chamber, block the four-eye fuel pump pipeline and cause permanent damage to the high-temperature turbine rotor. Clean the fuel filter before each refueling to avoid particle blockage of the oil circuit. Complete full disassembly maintenance strictly following the 25-hour service cycle.
FAQ 2 Can the single-bus V3 ECU match third-party autopilots? How to handle accidental engine flameout during flight?
Answer: The single-bus communication interface of V3 ECU supports mainstream civilian industrial autopilots on the market, and matching communication protocol documents are provided free of charge. This drone gasoline engine is equipped with a built-in automatic restart function. If accidental flameout occurs during flight, the ECU will automatically activate the ignition program within a few seconds to restart the engine. If multiple restart attempts fail, cut off the throttle power supply and conduct ground inspection after safe gliding landing. Our technical team provides remote ECU parameter tuning support at any time.
Inquiry & Global Cooperation Guide
If you need sample bench testing, bulk wholesale quotation, airframe matching technical consultation, ECU parameter tuning, or to download SW220B technical specification and dimension PDF documents, please submit your inquiry through the website contact form or official business email. Our professional aerospace power technical sales team will reply to all consultation requests within 24 working hours, and provide free global after-sales service policy documents and detailed installation operation guidance.
