Walkera G120EFI Manuel utilisateur
www.walkera.com
Control Power System
User Manual
April 24, 2020
V1.1
2
1.0 Product Summary
2.0 Security Summary
4.0 Specifications
5.0 Preparations
2.1 Environment
2.2 Prechecking
2.3 Operation
5.1 Installation instructions
5.2 Connecting lines
5.3 Oil circuit connection diagram
5.4 Fill in fuel and coolant
5.5 Running in
7.1 Engine startup
7.2 Engine Operation
7.3 Close Engine
8.0 Engine Maintenance and Warranty
8.1 Engine Maintenance
8.2 Engine Warranty
9.0 Common faults
9.1 Startup Difficulty
9.2 Performance degradation
10.0 List of items
Contents
3
4
4
4
7
8-9
10-12
16
16
16
13
14
17-18
17
19
19
20-21
14
15
5
6
3.0 Parts Introduction
3.1 Engine Introduction
3.2 G120EFI Control Box Introduction
6.0 Description of PWM control signal of the remote controller
7.0 Operation
3
1.0 Product Summary
The power system has certain safety risks and is not suitable for people
under 18 years of age. Please read the instructions carefully before operation and
use them correctly according to the instructions.
Thank you for purchasing the Walkera G120EFI control power system.
The EFI control power system has the following advantages:
Electronic injector has accurate fuel supply control, quick response, good fuel atomization effect,
reduced fuel consumption and exhaust pollution of engine.
Electronic Control Unit (ECU) responds quickly to the change of throttle, improves the engine's
handling and acceleration performance, and maintains good dynamic performance indicators;
allows the engine to adopt a higher compression ratio, and improves the engine's thermal efficiency.
Electronic Control Unit (ECU) has built-in ignition control, which directly drives the EFI igniter to
achieve stronger power performance and idle speed stability.
Stronger environmental adaptability, adaptability at different altitudes, temperatures and humidities.
4
2.0 Security Summary
2.1 Environment
Use in open spaces away from crowds.
Recommended height below 4km above sea level.
It is used in the environment of - 20℃~40℃.
Use in legal areas
2.2 Prechecking
The fuel tank position needs to be higher than the oil pump position to ensure smooth oil supply.
Check the fixing parts of the power system to ensure that the screws and nuts are not loose.
Check oil kettle and fuel pipeline to ensure that the fuel is leak free.
Check the water cooling kit of the power system to make sure it is connected properly and securely.
Make sure the parts are intact. If any parts are dirty, deteriorated or damaged, please clean or
replace them before use.
Make sure the tank is filled with fuel and the cooling tank is filled with coolant.
Make sure there are no air bubbles in the coolant circuit and the coolant will circulate normally
after power on.
Make sure that the oil pump has entered the oil after the power is turned on,
the gasoline in the return pipe is flowing back to the fuel tank continuously.
2.3 Operation
I
t is strictly forbidden to disconnect the power battery (aircraft battery)
after the engine is started.
Do not approach engine and propellers of aircraft that are in operating.
The gasoline used in the engine is flammable and explosive liquid.
Please keep away from open flames and prohibit smoking.
Altitude and power comparison table
Altitude 0m Power 100%
Altitude 1000m
Altitude 2000m
Altitude 3000m
Altitude 4000m
Power 93%
Power 85%
Power 76%
Power 64%
5
3.0 Parts Introduction
11
2
233
4
6
7
8
5
3.1 Engine Introduction
1. Spark plug
2. Cooling cylinder cover
3. Cylinder liner
4. Casing
5. Generator
6. Silencer
7. Nozzle
8. Air filter
1 2 3 4 5 6 7 Nozzle
Starter Oil pump
DC_12V_IN 12V 12V 4 3 2 1
UART1SWD UART2 Battery
voltage
6
3.2 G120EFI Control Box Introduction
1. SBUS
2. Ignition signal
3. Speed signal
4. PWM-OUT
5. Servo 1
6. Servo 2
19. LED light
20. LED light
21. Battery voltage
22. UART1
23. UART2
24. SWD
13. 12V
14. Sensor 1
15. Sensor 2
16. PWM-IN1
17. PWM-IN2
18. LED light
7. CDI power supply
8. starter
9. Oil pump
10. Nozzle
11. DC-12V-IN
12. 12V
1
2
3
4
10
5
6
7
8 9 11 12 13 14
15
16
17
18 19 20
21
222324
7
Weight
Size (L × W×H)
Weight
Size (L × W×H)
Weight
Size (L × W×H)
1.9kg
247 x 113 x120mm
0.45kg
170 x 120 x75mm
0.21kg
158 x 83 x179mm
φ8 x φ13 φ12 x φ17
4.0 Specifications
Engine
Drive
Weight
Size (L × W×H)
Displacement
Generator
Power
Maximum takeoff weight
Output voltage
Power battery
Oil Consumption
Spark plug
Fuel type
Fuel ratio
Coolant
Environment temperature
Maximum altitude
Double Cylinder Gasoline Engine
6.15kg (including spare parts)
375×290×279mm
120CC
WK-WS-150-001
7.4KW
53kg (flight near sea level and related to the power and structure of the aircraft)
DC50V
12S (Capacity ≥ 1800mAh, discharge rate ≥ 75C)
730g/kw.H (Hover 6 L/H)
NGK CM-6
95 # above unleaded gasoline + 2T synthetic lubricant (Motorway, Motul 710, etc.)
40:1
Car antifreeze engine coolant
-20℃to 40℃
4000m
Rectifier starter
Radiator
Cooling box
Radiator tube
Specifications
8
5.0 Preparations
5.1 Installation Instructions
4. Install 4 supports and fix the engine. Install the engine in the proper position of UAV,
and the default is vertical installation.
4-φ20 aperture
1. Pls. use the cross screwdriver
to loosen the air filter screw.
2. Install the air filter into the
engine intake.
3. Tighten the air filter screw with
a cross screwdriver.
Vertical Installation Diagram
9
1
1
2
2
2
2
2
2
5. Fixed radiator mounting aperture φ40
(The radiator is recommended to
be installed directly on the upper arm
under the propeller to ensure good heat
dissipation performance.)
Aperture φ3.5
6. Fixed cooling box mounting screw
aperture φ3.5
2-φ40 aperture
Rectifier Starter
Radiator
Radiator
Cooling Box
Liquid pump Engine
The cooling kit connection
diagram is as follows:
① Radiator tube φ12*φ17
②Radiator tube φ8*φ13
Blue arrow indicates the
direction of liquid circulation
Tips:
10
5.2 Connecting Lines
Connection Diagram of Rectifier Starter with Engine and Liquid Pump
Black line to green line welding (C=C)
Yellow line to yellow line welding (D=D)
blue line to blue line welding (E=E)
Rectifier Starter
Entrance
Exit
Liquid pump
Connecting liquid pump
Connecting
Spark plug
Engine
Table des matières
