Saturday, May 24, 2008

SHORTCUT KEYS : Run Commands To Access The Control Panel

SHORTCUT KEYS : Run Commands To Access The Control Panel

Add/Remove Programs control appwiz.cpl
Date/Time Properties control timedate.cpl
Display Properties control desk.cpl
FindFast control findfast.cpl
Fonts Folder control fonts
Internet Properties control inetcpl.cpl
Keyboard Properties control main.cpl keyboard
Mouse Properties control main.cpl
Multimedia Properties control mmsys.cpl
Network Properties control netcpl.cpl
Password Properties control password.cpl
Printers Folder control printers
Sound Properties control mmsys.cpl sounds
System Properties control sysdm.cpl

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Tuesday, May 20, 2008

CRDe


CRDe stands for common rail diesel injection,one of the types of fuel injection. they allow for controlling injection timing ,injection pressure and injection quantity independently and decreases engine noise significantly.

Denso developed the first CRDe in 1995 and since then it has been supplying it to many companies. They are being used to meet the EURO 4 emission rules.

A high-pressure pump increases the fuel pressure in the accumulator up to 1,600 bar or 23,200 PSI. The pressure is set by the engine control unit and is independent of the engine speed and quantity of fuel being injected into any of the cylinders. The fuel is then transferred through rigid pipes to the fuel injectors, which inject the correct amount of fuel into the combustion chambers.

Injectors are actuated by electronic diesel control . some use piezo crystals .

The electronic diesel control unit precisely meters the amount of fuel injected, and improves atomization of the fuel by controlling the injector pulsations. This results in quieter, more fuel efficient engines; cleaner operation; and more power output.

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