Common-Rail Diagnostic Set Portable tester for the function control of Common-Rail
high pressure injectors in the circulation mode
Common Rail injectors reach their peak effect, the optimum atomization through high
pressure (up to 2100 bar) and finest injection openings. These conditions can only
be fulfilled by a perfectly working injector in all temperature- and rpm-areas of
Slightest discrepancies between the set values (such as internal leakages of the
injectors) change the injection conduct and lead to malfunctions, such as start
and rotation difficulties, with the result of a decrease in productivity, increase
of fuel consumption or increased pollutant emission, and thus leads to a higher
The values that can be fetched from the CPU give only indications concerning the
malfunction of the injection systems. Only a combination of engine tester and precise,
sometimes long lasting measurements of recycle-flow amount of injector within the
circulation mode, can give sound information about the possible defaults within
Having knowledge about these technical conditions, the system has developed in such
a way, that it is closely integrated within the circulation of the recycle-flow-system.
The tester for the function check of Common Rail high pressure injectors, wherefore
is shortly receiving the patent rights, calculates the absolute as well as the relative
recycle-flow amount and additionally allows long-term-measurings of diverse rpms
and engine temperatures.
Therefore also some changing measurements can be specifically controlled. As the
state of control does not portray any change of the original state of the engine,
the diagnosis will not be falsified.
The worldwide patented diagnosis system for the function control of high-pressure
injectors in the circulation mode – developed for Bosch piezo injectors –
compatible with all systems!
1 Connection process = reading 5 important measurement values simultaneously during
Absolute recycle flow amount per injector (ml/min)
Recycle flow amount in comparison
Return pressure (-1 bar – 16 bar)
Air bubble formation in return flow
The installation of the whole test set-up can be performed very quickly, as the
adaptor tubes have true to the original connection couplings and with plug-in couplings
can be connected to the actual checking unit (mistake excluded).
During the check procedure one can permanently read the flow amount within a checking
glass with a float especially calibrated for Diesel fuel. In order to receive additional
information, you can also in-between couple the pressure gauge with the temperature
probe through the simple coupling system. Even the smallest leakage in the injection
system can be detected by small bubbles in the diagnostic tool.
The future-adapted designed and protected device can be connected to all systems,
that are currently known on the market, as well to all injectors that will in future
appear on the market (depending on the manufacturer of the injector) by means of
the adaptor tubes.
short installation time through mistake-avoiding coupling system
usable on all Bosch-, Siemens-, Denso- and Delphi- injection systems (also Piezo)
long-term test at different rpms and engine temperatures in connection to engine
diagnosis device possible
pressure gauge and temperature probe in-between coupleable
top quality by hand-made-manufacturing „Made in Germany“