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It is based on the one-litre engine used in the Volkswagen Polo car
with electronic engine management of ignition and fuel injection
settings.
An eddy current dynamometer provides a variable load on the engine,
allowing the characteristic power and torque curves to be reproduced
in the laboratory. The system comes complete with extensive instrumentation,
including rpm measurement, torque (from which power can be calculated),
plus various temperatures, pressures and flows.
It can be linked to a computer using the software provided which
gives real time monitoring of the various sensors, with a wide range
of data logging and graphical display options.
The dynamometer and throttle can both be controlled electronically
from the software, which makes installation into a closed test cell
very straightforward, and allows for remote computer operation.
The interfaces are compatible with packages such as LabView and MatLab
for users who wish to provide their own control and monitoring software.
A further advantage of the computer control is that stable rpm readings
can be easily achieved using the closed loop control function on
the dynamometer drive.
A closed loop primary water-cooling system is incorporated, complete
with a heat exchanger for connecting into a secondary cold water
supply.
Also included is the Volkswagen diagnostic software which connects
to a PC, and gives the user direct access to the current parameters
used by the engine control unit (ECU) such as ignition timing and
injector opening times.
In particular the injector opening times can be used to calculate
an accurate fuel consumption figure for the engine.
This system joins the CM4 axial flow gas turbine engine already used
by many institutions as a valued teaching aid.
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| ARMFIELD
@ THE EXPOS
We
will be at the following expositions with examples of our
latest equipment
(and our well established products).
ASEE (American Society for Engineering
Education),
Salt Lake City, UT. June 20-23. www.asee.org
IFT (Institute of Food Technologists
Expo)
Las Vegas, NV. July 13-16. www.ift.org
ASCE (American
Society of Civil Engineers)
Baltimore, MD. October 20-23. www.asce.org
GSA (Geological
Society of America)
Denver, CO. November 7-10. www.geosociety.org
| Do
you have a story to tell about your laboratory or work?
Tell
it in Factfile, distributed twice a year
(Spring & Fall) to nearly 15,000 US academics.
We like to have up to 500 words and a picture.
Contact
the editor:
Iain Sutherland
@
info@armfieldinc.com
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