ATENG 12919 — Computer Controlled Test Bench for 2.2 kW Engines
(for main items)
- With this unit there are several options and possibilities:
- Main items: 1, 2, 3, 4, 5 and 6.
- Optional items: 7, 8, 9 and 10.
- Let us describe first the main items (1 to 6):
- 1 ATENG 12919. Unit:
- Test bench for combustion engines up to 2.2 kW, with wheels to
- facilitate its mobility:
Anodized aluminum frame and panels made of painted steel.
Main metallic elements made of stainless steel.
Diagram in the front panel with distribution of the elements similar to the
real one.
Mounting base with vibration dampening device to instal the testing engine.
Transparent panels that allow to visualize the operation of the unit.
- Computer controlled electric motor to generate the load:
- Braking torque: 8 N·m.
- Maximum speed: 3600 rpm.
This motor also works as the engine starter.
Transmission between the combustion engine and the brake through an
elastic couplings.
Acceleration of the combustion engine through the computer controlled
fuel valve (acceleration/deceleration).
- 5 l capacity fuel tank: either for petrol or for diesel-oil (depending on the
purchased test engine).
- Inlet air circuit:
Air filter.
- Easy and quick connection hose of D : 40 m.
ext
- Exhaust gases circuit: Unit: ATENG 12919
- Easy and quick connection hose of D : 40 m.
ext
- Instrumentation:
- Speed sensor to measure the speed (rpm) of the engine, range: 0 – 6000 rpm.
Brake resistance
Measurement of the electric motor braking torque.
- Four “J” type temperature sensors at different points of the process:
Inlet air temperature.
Exhaust gases temperature.
Fuel temperature.
Engine oil temperature.
- Flow meter to measure the fuel consumption, (depending on the purchased test engine), range:
2 – 30 ml/min.
- Two flow sensors to measure:
- Inlet air flow to the combustion engine, range: 0 – 300 m³/h.
- Exhaust gases outlet flow, range: 0 – 300 m³/h.
- To obtain the correct power of an engine it is necessary to measure ambient conditions with:
“J” type temperature sensor.
- Pressure sensor, range: 0 – 1 bar.
- The unit includes all the safety measures required for a safe operation:
Temperature limit.
Limit switch to control if any of the protection panels is open.
Safety individual hearing protectors to be used during the practical exercises are included.
- The Data Acquisition and Control Software of the “ATENG 12919” unit allows:
- The calculation of representative magnitudes: power of the combustion engine.
- The representation of the characteristic curves of the combustion engines: torque or power versus
velocity of the combustion engine.
The representation of the measured and calculated magnitudes curves, in signal versus signal
charts. Free configuration of the axes of these charts.
The representation in real time of all the measured and calculated magnitudes.
The recording of the test measurements versus time and generation of a file compatible with
spreadsheet applications.
5
Complete Technical Specifications (for main items)
- The complete unit includes as well:
Advanced Real-Time SCADA.
Open Control + Multicontrol + Real-Time Control.
Specialized Control Software based on LabVIEW.
National Instruments Data Acquisition board (250 KS/s, kilo samples per second).
Calibration exercises, which are included, teach the user how to calibrate a sensor and the
importance of checking the accuracy of the sensors before taking measurements.
Projector and/or electronic whiteboard compatibility allows the unit to be explained and
demonstrated to an entire class at one time.
Capable of doing applied research, real industrial simulation, training courses, etc.
Remote operation and control by the user and remote control for technical support,
are always included.
Totally safe, utilizing 4 safety systems (Mechanical, Electrical, Electronic & Software).
Designed and manufactured under several quality standards.
Optional ICAI software to create, edit and carry out practical exercises, tests, exams,
calculations, etc. Apart from monitoring user's knowledge and progress reached.
This unit has been designed for future expansion and integration. A common expansion is
the Scada-Net (ESN) System which enables multiple students to simultaneously
operate many units in a network.
- Required elements (at least one) (Not included):
- TM3-01. Air-Cooled 4-Stroke 1-Cylinder Gasoline Engine for ATENG 12919.
- TM3-02. Air-cooled 4-Stroke 1-Cylinder Diesel Engine for ATENG 12919.
- TM3-03. Air-cooled 4-Stroke 1-Cylinder Gasoline Engine (Variable Compression) for ATENG 12919.
- TM3-04. Air-Cooled 2-Stroke 1-Cylinder Gasoline Engine for ATENG 12919.
- TM3-05. Air-Cooled 4-Stroke 1-Cylinder Gasoline and LPG Engine for ATENG 12919.
- Additional recommeded elements (Not included):
- ATENG 12931. Exhaust Gas Analyzer.
- ATENG 12929. Computer Controlled Exhaust Gas Calorimeter.
- ATENG 12932. Exhaust Gas Analyzer (NOx).
- TBMC3/CIB. Control Interface Box:
The Control Interface Box is part of the SCADA system.
Control interface box with process diagram in the front panel and with the same distribution that
the different elements located in the unit, for an easy understanding by the student.
- All sensors, with their respective signals, are properly manipulated from -10V. to +10V. computer
output.
Sensors connectors in the interface have different pines numbers (from 2 to 16), to avoid
connection errors.
Single cable between the control interface box and computer.
The unit control elements are permanently computer controlled, without necessity of
changes or connections during the whole process test procedure.
Simultaneous visualization in the computer of all parameters involved in the process.
Calibration of all sensors involved in the process.
Real time curves representation about system responses.
Storage of all the process data and results in a file.
Graphic representation, in real time, of all the process/system responses.
All the actuators’ values can be changed at any time from the keyboard allowing the
analysis about curves and responses of the whole process.
TBMC3/CIB
All the actuators and sensors values and their responses are displayed on only one screen in the computer.
Shield and filtered signals to avoid external interferences.
Real time computer control with flexibility of modifications from the computer keyboard of the
parameters, at any moment during the process.
Real time computer control for pumps, compressors, heating elements, control valves, etc.
Real time computer control for parameters involved in the process simultaneously.
Open control allowing modifications, at any moment and in real time, of parameters involved in the
process simultaneously.
Three safety levels, one mechanical in the unit, another electronic in the control interface and
the third one in the control software.
6
Complete Technical Specifications (for main items)
- 3 DAB. Data Acquisition Board:
The Data Acquisition board is part of the SCADA system.
PCI Express Data acquisition board (National Instruments) to be placed in a computer slot. Bus
PCI Express.
- Analog input:
Number of channels= 16 single-ended or 8 differential. Resolution=16 bits, 1 in 65536.
- Sampling rate up to: 250 KS/s (kilo samples per second).
- Input range (V)=±10 V. Data transfers=DMA, interrupts, programmed I/0. DMA channels=6.
- Analog output:
Number of channels=2. Resolution=16 bits, 1 in 65536. DAB
- Maximum output rate up to: 900 KS/s.
- Output range (V)=±10 V. Data transfers=DMA, interrupts, programmed I/0.
- Digital Input/Output:
- Number of channels=24 inputs/outputs. D0 or DI Sample Clock frequency: 0 to 100 MHz.
- Timing: Number of Counter/timers=4. Resolution: Counter/timers: 32 bits.
The Data Acquisition board model may change at any moment, providing the same or better
features than those required for the unit.
- 4 TBMC3/CCSOF. Computer Control + Data Acquisition + Data Management Software:
The three softwares are part of the SCADA system.
Compatible with actual Windows operating systems. Graphic and intuitive simulation of the
process in screen. Compatible with the industry standards.
Registration and visualization of all process variables in an automatic and simultaneous way.
Flexible, open and multicontrol software, developed with actual windows graphic systems,
acting simultaneously on all process parameters.
Management, processing, comparison and storage of data.
Sampling velocity up to 250 KS/s (kilo samples per second).
Calibration system for the sensors involved in the process.
It allows the registration of the alarms state and the graphic representation in real time.
Comparative analysis of the obtained data, after the process and modification of the conditions
during the process.
TBMC3/CCSOF
Open software, allowing the teacher to modify texts, instructions. Teacher’s and student’s
passwords to facilitate the teacher’s control on the student, and allowing the access to different work
levels.
This unit allows the 30 students of the classroom to visualize simultaneously all the results
and the manipulation of the unit, during the process, by using a projector or an electronic
whiteboard.
5 Cables and Accessories, for normal operation.
- 6Manuals:
- This unit is supplied with 8 manuals: Required services, Assembly and Installation, Interface and
Control software, Starting-up, Safety, Maintenance, Calibration & Practices manuals.
- References 1 to 6 are the main items: ATENG 12919 + TBMC3/CIB + DAB + TBMC3/CCSOF + Cables and Accessories + Manuals are
included in the minimum supply for enabling normal and full operation.
7
Required elements (at least one) (Not included)
TM3-01. Air-Cooled 4-Stroke 1-Cylinder Gasoline Engine for ATENG 12919
- Type of engine: Spark ignition.
- Fuel: Petrol.
- No. of cylinders: 1.
- No. of strokes: 4.
- Type of air intake: Naturally aspirated.
- Type of cooling: Air.
- Start: Manual.
- Compression ratio: 8.5:1.
- Maximum torque: 7.7 N·m/2400 rpm.
- Maximum power: 4.2 HP/3600 rpm.
- Cylinder bore: 62 mm.
- Stroke: 42 mm.
