SEQUENT24
is the right solution for last generation vehicles (Euro 3 and
Euro 4) because represents the most advanced level of evolution for
what concerns the equipment of gas injection, and it can be defined to
all intents and purposes as a “COMMON RAIL” system.
In fact it first introduces, in the gas propelled field, the winning
evolution used for modern Diesel engines: a
“rail-line” in pressure (rail) that supplies fuel
to all injectors (true injectors) that are assigned to inject it in
each cylinder of the engine.
In the SEQUENT system, unlike an injection at continuos flow (stream),
the ECU calculates the opening times of the injectors, cylinder per
cylinder, and it acts them separately on each gas injector with the
highest precision and with the best timing if compared with the opening
instant of the intake valve. The sequential injection control allows
consequently obtaining the top timeliness and precision of the fuel
dosage.
As per all electronic injection systems, a mixer does not aspirate the
gaseous fuel, but the correct quantity is determined through the
calculations made by the ECU. It allows obtaining the well known
advantages of the injection systems, such as:
* No disadvantages in the performances
on petrol, caused by the absence of a mixer,
* Maximum performances on gas, typical
of the injection systems,
* No additional overall dimensions on
the intake pipes,
* Elimination of the backfire risks, due
to the injection near the intake valves and increased by the fact that
injection is in a timed way with the opening of the intake valve.
The result is that the original sequential injection operation of the
vehicle, the engine had been studied, built and optimised for, is
absolutely unchanged, with the following practical results:
* Better driving fluidity,
* Consumption optimisation,
* Reduction of polluting exhaust
emissions.
Other advantages are the
following:
* It is normally not necessary to delete
the error codes in the petrol ECU, because they do not appear anymore,
* it is not necessary anymore to install
the “Memory” devices on those vehicles provided by
OBD diagnosis,
* all the petrol ECU functions remain
perfectly efficient even while running on gas, assuring the respect of
the OBD regulations,
* each injector is piloted singularly,
giving the possibility to maintain the petrol injection ecu strategies
while running on gas,
* no particular adjustment is needed, if
the configuration is available.
*
BRC
injector
Tanks:
Toroidal
(Internal or External)
| Lp. |
Capacity
L |
Diameter
mm |
Height
mm |
| 1. |
44 |
600 |
200 |
| 2. |
50 |
600 |
225 |
| 3. |
55 |
600 |
250 |
| 4. |
60 |
600 |
270 |
| 5. |
48 |
630 |
200 |
| 6. |
55 |
630 |
225 |
| 7. |
62 |
630 |
250 |
| 8. |
67 |
630 |
270 |
| 9. |
50 |
650 |
200 |
| 10. |
55 |
650 |
225 |
| 11. |
61 |
650 |
250 |
| 12. |
70 |
650 |
270 |
Cylinder
| Lp. |
Capacity
L |
Diameter
mm |
Length
mm |
| 1. |
35 |
315 |
531 |
| 2. |
40 |
315 |
599 |
| 3. |
45 |
315 |
667 |
| 4. |
50 |
315 |
734 |
| 5. |
55 |
315 |
802 |
| 6. |
60 |
315 |
869 |
| 7. |
65 |
315 |
939 |
| 8. |
70 |
315 |
1004 |
| 9. |
80 |
315 |
1139 |
| 10. |
50 |
360 |
582 |
| 11. |
60 |
360 |
686 |
| 12. |
70 |
360 |
789 |
| 13. |
80 |
360 |
892 |
Multivalves BRC 30" or 0".
