AVL Shot to shot PLU 131Shot-to-shot measuring systemFor Shot-to-shot measurements on Injection Systems and Injectors
TAKING ADVANTAGE OF AVL PLU MEANS:Savings in test bed capacity:
- Precise measurement results due to instantaneous plausibility check of shot quantities
- continuous Measurement
- Virtually maintenance-free
- No recalibration required (long-term stability)
Reduction of development times:
- High precision of measurement via the entire range
- Up to 10 single injection shots per cycle
- single injection shots of 0.3 mm³ to 1000 mm³
- Permanent plausibility check of measurement values
- Visualisation of flow rates for each single shot event
Broad range of application:
- Large pressure range
- Large measurement range (0.05 to 300 l/h)
- For all commercially available fuels, as well as alcohols and alternative test fuels
- Applicable on fired engine
MAIN APPLICATION AREASShot-to-shot measuring system AVL Shot to shot PLU 131 is used to measure precisely of mean consumption values, individual injection volumes and flow rate curves at Diesel- und Gasoline-Injectors in the field of R&D and Production.
The measuring system basically handles the following tasks:
- Measurements of single injection shots and flow rates
- Systematic optimisation of multiple injections
- Pre-setting of CPU`s in the whole engine operating range obtained with the whole fuel system
- Spray pattern development in the pressure chamber
![]() |
SYSTEM DESCRIPTIONTwo different measurements in one meter. Piston to determine single- and individual injection volume measurements; Gear counter to determine precisely of mean flow.
Continuous measurement of instantaneous flow rates from 0.03 l/h to 230 l/h can be performed with simultaneous measurements of up to 10 single injection shots of 0.3 mm³ to 1000 mm³.With highly-sensitive and extremely robust sensor the movements of a sensor piston is used to determine individually injected volume and flow rate characteristics. Simultaneously the speed of the measuring head is controlled in such a way that the differential pressure remains at “Zero” so that the flow rate is proportional to the speed. The plausibility of every single shot measurement result is ensured in real time by comparison with the mean consumption value.
MAIN FEATURES- High information density due to continuous availability of mean consumption values, individual injection volumes and flow rate curves
- Precise measurement results due to instantaneous plausibility check of shot quantities even with extremely short intervals between injection events
- Excellent comparability of measurement results due to the long - term stability of calibration values ensured by the Pierburg measuring principle
- Low operating costs due to function - related long life cycle and maintenance Intervals
- Universal application since the measuring principle makes viscosity and temperature irrelevant
OPTIONSLeakage flowmeter PLU 110
- Measuring range: 0.1 … 45 l/h
- Measuring uncertainty: 0,3% (of reading)
- Media: like AVL PLU 131
- Operating pressure: max. 3 bar
- Temperature range: 10°C … 120°C
- Measuring range: 0.700 … 0.950 g/cm³
- Measuring uncertainty: 0.03% (of reading)
- Media: like AVL PLU 131
- Operating pressure: max. 10 bar
- Temperature range: 5°C … 95°C
|
TECHNICAL DATA- Measuring Ranges: 0.03 l/h to 230 l/h, 0.3 mm³/Stroke to 1,000 mm³/Stroke (25,000 mm³/Stroke), (other ranges on request)
- Measuring uncertainty: 0.1% for mean flow rates (of reading), 0.3% for mean leakage flow rates, 3% for mean values for injections of 0.3 mm³, 2% for mean values for injections of 1 mm³, 1% for mean values for injections above 2 mm³
- Speed range: 20 to 1200 strokes/min (10000 strokes/min)
- Time resolution: 2 µs (between two injections)
- Temperature range: -20 to 120°C
- Measurement units: mean flow rates (l/h ; kg/h) up to 10 individual injections (mm³ /stroke), start of injection from flow rate, flow rate curves for individual injections derived from piston movement, relevant pressures and temperatures
- Media: commercial available Gasoline and Diesel fuels, test oil: Shell 1404 , 2,5cSt at 40°C, test oil Avilub RS 32 , 20cSt at 51°C on request
- Operating pressure: up to 200 bar
- Interfaces: TCP/IP, RS 232
|
|
|
|