Archive for the ‘Automotive Engine’ Category
Thursday, December 23rd, 2010 |
The signals from the ECU are amplified by the EDU to operate the injector. High voltage is used particularly when the valve is open in order to open the nozzles. ...
Posted in Diesel Engine Control System | No Comments »
Thursday, December 23rd, 2010 |
When the fuel pressure of the commonrail becomes higher than the target injection pressure, the pressure discharge valve receives a signal from engine ECU, in order to open the valve ...
Posted in Diesel Engine Control System | No Comments »
Wednesday, December 22nd, 2010 |
The two sets of opposing plungers are driven by the inner cam via the rollers. The inner cam is driven by the engine via the timing belt. The inside of ...
Posted in Diesel Engine Control System | No Comments »
Tuesday, December 21st, 2010 |
1. Outline
The fuel that has been drawn up from the feed pump located inside the supply pump is pressurized to the required pressure. The plunger in the pump generates the ...
Posted in Diesel Engine Control System | No Comments »
Monday, December 20th, 2010 |
Service Hint
Injection Pump Installation
Install the injection pump by aligning the matching mark on the injection pump with the reference position mark on the engine. Because the ECU recognizes the injection ...
Posted in Diesel Engine Control System | No Comments »
Sunday, December 19th, 2010 |
Injection Volume Adjustment
The injection volume is adjusted by operating the SPV in accordance with the signals from the ECU to vary the timing of the ending of the injection.
Injection Timing ...
Posted in Diesel Engine Control System | No Comments »
Saturday, December 18th, 2010 |
Injection Volume Outline of SPV
There are two types of SPV (Spill Control Valve) that control the injection volume.
Conventional type SPV
(used in axial plunger type pump)
Direct-acting type SPV
(used in the radial ...
Posted in Diesel Engine Control System | 1 Comment »
Friday, December 17th, 2010 |
In the conventional EFI-diesel, control of injection timing and volume is performed electronically. The device that generates the fuel pressure is the same pump used in an ordinary diesel engine.
The ...
Posted in Diesel Engine Control System | No Comments »
Thursday, December 16th, 2010 |
When the malfunction code is not confirmed the DTC check and problem still can not be confirmed in the basic inspection,then proceed to this step and perform troubleshooting according to ...
Posted in Diesel Engine Control System | 1 Comment »
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