AVL Fuel Mass Flow Meter and Fuel Temperature Control - Large Engines
AVL Fuel Mass Flow Meter and Fuel Temperature Control
AVL Approach
The AVL Fuel Temperature Control and the AVL Fuel Mass Flow Meter with a pressure control system patented by AVL, provide constant, adjustable fuel pressures and temperatures. This allows for reliable and easy utilization for engines sizes up to 600kW with state-of-the-art mixture preparation systems.
Technical Data
AVL Fuel Mass Flow Meter and Fuel Temperature Control
| Technical Details AVL Fuel Mass Flow Meter and Fuel Temperature Control | |
| Type: | AVL 735S/753C |
| Measurement principle: | Mass flow |
| Measurement ranges: Mass |
0 … 125 kg/h |
| Measurement uncertainty: Mass |
≤ 0.12% (acc. to DIN 1319) |
| Interfaces / output signal: | RS232, analog I/O, 0 … 10 V digital I/O |
| Measurement frequency: | 20 Hz (analog) |
| Response time: | < 125 ms |
| Fuel types: | Standard*) and 100% bio fuels |
| Engine feed pressure: | < 0 … 600 kPa |
| Fuel circulation quantities: | Optionally 240/450/540 l/h |
| Control range: | 10 … 80° C |
| Stability: | Better than 0.02° C |
| Heating / cooling: | 1.6 kW / 1.6 kW |
| Power supply: | 230 V, 50 Hz, 220 V, 60 Hz 100 V, 50–60 Hz, 115 V, 60 Hz |
| Power consumption: | 0.4 kW (without heating) |
| Ambient temperature: | 5 … 50° C |
| Dimensions (W x H x D): | 770 x 1,630 x 345 mm |
*) With max. 20% alcohol and up to 10% bio diesel
Measuring Principle
AVL Fuel Mass Flow Meter Measurement Principle
The fuel passes through a U-shaped tube, which vibrates at its natural frequency. This frequency is proportional to the fuel density, which, in addition to the mass flow, is a separate measurement variable and thus allows for the output of volumetric measurement values. The time lag of the vibration frequency C1 to C2 is proportional to the mass flow.
