EL_FuelPump
EL-FuelStation
Constant Fuel Pressure for Radial & 4-Stroke Engines
Smooth engine operation in all flight attitudes
The EL-FuelPump ensures constant fuel pressure between the tank and the engine – regardless of flight attitude, load changes, or fuel level.
It is the ideal solution for radial and 4-stroke engines where a stable fuel supply is critical for smooth operation and reliable performance.
It is the ideal solution for radial and 4-stroke engines where a stable fuel supply is critical for smooth operation and reliable performance.
✔ Plug & Play✔ Telemetry capable (PowerBox / Jeti)✔ Pressure adjustable via transmitter
Why an EL-FuelPump?
In many models, fuel pressure varies depending on flight attitude or tank position. This can lead to rough engine operation, leaning, or engine cutouts.
The EL-FuelPump solves this problem:
- constant fuel pressure directly at the carburetor
- smooth engine operation in all flight attitudes
- automatic adaptation to fuel consumption
Operating Principle
The EL-FuelPump is installed in a ring line at the fuel tank.
The center port is connected to the carburetor.
- The pump maintains the selected pressure constantly
- Pressure is adjustable between 60 and 200 mbar
- Factory setting: 100 mbar
Regulation is fully electronic and highly precise, ensuring the engine is always supplied with the optimal amount of fuel.
Installation – Mechanical
- Installation as close to the tank as possible is recommended
- Two side ports → tank (ring line)
- Center port → carburetor
- Hose connections: 4 mm
Connection – Electrical
The EL-FuelPump is powered directly from the receiver.
Connections:
Receiver connection:
- Supply voltage: 6–9 V
- Switching channel for pump ON/OFF
BUS connections (2× internally connected 1:1):
- for telemetry or additional power supply
LED connection (optional):
- external status LED (indicates pump status)
Transmitter Settings (Important)
The pump is controlled via a switching channel.
Recommended settings:
- Servo travel: ±100%
- OFF: –100% (approx. 1000 µs)
- ON: +100% (approx. 2000 µs)
- Ideal: 2-position switch
Safety function:
The pump can only be activated if a valid OFF position is detected at startup.
This prevents unintended activation.
The pump can only be activated if a valid OFF position is detected at startup.
This prevents unintended activation.
Telemetry
The EL-FuelPump can be fully monitored and configured via telemetry.
Supported systems:
- PowerBox P²Bus
- Jeti EX-BUS
Transmitted values:
- Supply voltage
- Temperature
- Fuel pressure
- Pump status (plain text with PowerBox, 1/0 with Jeti)
Pressure adjustment:
The desired pressure value can be conveniently set directly via the transmitter.
The desired pressure value can be conveniently set directly via the transmitter.
Undervoltage Protection
If the supply voltage drops below 5.2 V, the EL-FuelPump reacts automatically:
- Pump output is reduced
- Pressure setpoint is lowered to 50 mbar
- Undervoltage warning via telemetry
This protects the engine and electronics and gives the pilot time to land safely.
Technical Specifications
- Operating voltage: 6–9 V
- Current consumption: 0.4 A (max. 1 A)
- Pressure range: 60–200 mbar
- Factory setting: 100 mbar
- Hose connections: 4 mm
- Telemetry: PowerBox P²Bus / Jeti EX-BUS
- Dimensions: 100 × 75 × 28 mm
- Weight: 160 g
Package Contents
- EL-FuelPump
- Connection cable
- Operating manual (download)
EL-FuelPump – Controlled fuel delivery.
Stable fuel pressure in every flight attitude.
Stable fuel pressure in every flight attitude.
Spareparts
The EL-FuelPump provides a constant fuel pressure to the carburetor/engine, ensuring optimal engine performance in all flight positions.
Technical Data:
Weight ............................ 160 g
Regulation range ...... 60 – 200 mBar
Dimensions .................. 100 x 75 x 28 mm (L x W x H)
Voltage ........................... 6 – 9 V
Current ............................ 0.4 A (max. 1 A)
Hose connection ...... 4 mm (hose: 4 mm inner, 6 mm outer diameter)
Telemetry ..................... PowerBox P²Bus, Jeti EX-BUS
Technical Data:
Weight ............................ 160 g
Regulation range ...... 60 – 200 mBar
Dimensions .................. 100 x 75 x 28 mm (L x W x H)
Voltage ........................... 6 – 9 V
Current ............................ 0.4 A (max. 1 A)
Hose connection ...... 4 mm (hose: 4 mm inner, 6 mm outer diameter)
Telemetry ..................... PowerBox P²Bus, Jeti EX-BUS
349,00€
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Spareparts
As an optional accessory, if telemetry cannot be used,
this LED is used to indicate the operating status (on/off).
With PowerBox and Jeit, the display is shown in the telemetry;
the LED can be used additionally if required.
this LED is used to indicate the operating status (on/off).
With PowerBox and Jeit, the display is shown in the telemetry;
the LED can be used additionally if required.
9,90€
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Spareparts
Spark-RPM is an extremely compact telemetry sensor for direct RPM measurement on electronic ignition systems with a tachometer output.
Please select the BUS system:
Please select the BUS system:
69,00€
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Startersets
This telemetry sensor (for PowerBox P²BUS and Jeti EX-BUS) measures the fuel flow from the tank to the engine or to the turbine and can therefore reliably display the tank level.
Due to the measuring range, the sensor is suitable for combustion engines from approx. 100ccm and turbines up to approx. 200N thrust. The sensor can be automatically set to "full" after refueling via the FuelSwitch (patch cable included).
(Shipping in 2-3 day's)
Technical data:
height 25 mm,
diameter 40 mm,
length 75 mm,
weight 50 g,
Measuring range:
15 - 200 ml/min in suction lines
15 - 800 ml/min in pressure lines
protocol Jeti EX-BUS or PowerBox P²BUS
Due to the measuring range, the sensor is suitable for combustion engines from approx. 100ccm and turbines up to approx. 200N thrust. The sensor can be automatically set to "full" after refueling via the FuelSwitch (patch cable included).
(Shipping in 2-3 day's)
Technical data:
height 25 mm,
diameter 40 mm,
length 75 mm,
weight 50 g,
Measuring range:
15 - 200 ml/min in suction lines
15 - 800 ml/min in pressure lines
protocol Jeti EX-BUS or PowerBox P²BUS
159,00€
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