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PT1-124

A hybrid engine for UAVs

2-stroke single cylinder internal combustion hybrid engine, complete with an 11 kW booster-generator, idle clutch, and gear-box.

This cutting-edge engine is specifically designed for sustained operation at constant speeds, making it ideal for use in planes and VTOL type UAVs with high electrical power demands.

Our engine is meticulously crafted with compliance to the stringent requirements of both ASTM F3366-19 and EU Regulation 2018/1139, ensuring that it meets the highest standards for safety and performance.

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Key technologies

Highly effective for sustained operation at constant speeds.

The engine uses a two-stroke design with a Reed-valve intake and a Resonator exhaust.
Fuel injection is done electronically using a Throttle body and Transfer port. The engine has twin fuel pumps and pressure regulators.
The engine has a twin contour liquid cooling system that is robust and reliable.
An integrated gearbox transmission with an idle clutch is built into the engine.
The engine has an 11kW generator/booster to provide electric power or to increase torque/power/acceleration.
A booster is included to level the inter-combustion-cycle torque.
The engine has a governor for RPM and torque control.
Aluminium body, cast-iron cylinder sleeve, DLC-coatings

The outlook

1 – Cylinder cover
2 – Cylinder
3 – Coil
4 – Spark plug
5 – 1st stage injector
6 – Reductor case
7 – Alternator / Starter rotor
8 – ECU / Battery unit
9 – Cooling pump

10 – Throttle body
11 – Intake air resonator / silencer / filter
12 – Silencer
13 – Throttle servo / sensor
14 – Cooling liquid temperature sensor
15 – Shaft flange
16 – Resonator
17 – EGT sensor
18 – Radiator

Technical parameters

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Engine type	Hybrid, 2-stroke, 1 cylinder
Weight	8.9 kg
Displacement	124 cc
Length/Wiath/Height	450x300x150 mm
Bore	54 mm
Stroke	54 mm
Power	29 hp at 8800 rpm
Maximum Continuous Speed	10000 rpm
Ignition	CDI, Twin spark.
Cooling	Liquid cooling, pressured thermostated system with external electric cooling pump and radiators
Fuel system	Electronic Fuel Two Stage Injection Throttle body + Transfer port
Fuel type	Wide range of automotive and aviation gas, heavy fuel, 2% premix w/TS Oil. External lubrication system options available
Fuel consumption	200 – 220 g / kW / hr
TBO (estimate)	1000+ hours
Preferred oil type	API TC
Fuel to oil mixture	Premix 2%, Automix – 0,5-1%
Sensors / Telemetry	EGT – Exhaust gas temperature; CHT – Cylinder head temperature; CLT – Cooling liquid temperature; IAT – Intake air temperature; RPM – Rotation per mine; CSP – Crankshaft Position; KS – Knock sensor; Airflow, Throttle position, Fuel Flow
Control	CAN 2.0B J1339/29bit; ADLM + TrueTorgue
Electric System	Internal alternator / starter; Internal starter battery pack 5Ah