Does anyone know if or when the Nanni Diesel engine are injector pump or direct injection?

UncleBob said..

Zzzzzz said..
Does anyone know if or when the Nanni Diesel engine are injector pump or direct injection?

Mate, just what are you asking???
Every diesel engine has an injection pump.!!

Old Diesel engines had mechanical injector pumps I was of the belief they did away with them and went computer

Zzzzzz said..

UncleBob said..

Zzzzzz said..
Does anyone know if or when the Nanni Diesel engine are injector pump or direct injection?

Mate, just what are you asking???
Every diesel engine has an injection pump.!!

Old Diesel engines had mechanical injector pumps I was of the belief they did away with them and went computer

Some but nowhere near all, but an electronic common rail requires a high pressure pump, the difference is the electronic distribution versus mechanical distribution.

Hi all, mechanical injection is one of the good attributes of Diesel engines, especially in a marine environment, think the KISS principle.
Mechanical needs a timed pump, and sprung loaded non return valves, injectors!
Common rail is an electric high pressure pump, with all injectors in a common high pressure circuit, the injectors are hi tech solenoid valves, each opening at a computer controlled tine, and possible micro controlled to open and close multiple times during one firing cycle. So smoother softer firing stokes are possible, leading to a smoother, more controlled engine. But, these intricate devices are even more finicky about fuel quality, than good old Mech, even Mech is not that tolerant of bad fuel.
Direct injection is the position of the injectors, directly in the combustion chamber. Pre combustion or indirect injection engines, have the injectors in a separate adjoining chamber.
more old tech than DI

Zzzzzz said..

Stockie said..
Hi all, mechanical injection is one of the good attributes of Diesel engines, especially in a marine environment, think the KISS principle.
Mechanical needs a timed pump, and sprung loaded non return valves, injectors!
Common rail is an electric high pressure pump, with all injectors in a common high pressure circuit, the injectors are hi tech solenoid valves, each opening at a computer controlled tine, and possible micro controlled to open and close multiple times during one firing cycle. So smoother softer firing stokes are possible, leading to a smoother, more controlled engine. But, these intricate devices are even more finicky about fuel quality, than good old Mech, even Mech is not that tolerant of bad fuel.
Direct injection is the position of the injectors, directly in the combustion chamber. Pre combustion or indirect injection engines, have the injectors in a separate adjoining chamber.
more old tech than DI

Hi Stockie very thorough explanation , what got me on this discussion was the post on being hit by lightning, It got me thinking that that could also put your new age motors out of action with their computer control

That's true, most modern trucks with computer controlled Diesel engines have more electrical failures than actual mechanical. We had sone trailer refrigeration units that came with Yanmar electronic. Engines, these came with a directive to use special nickle plated fuel fittings, no normal brass. This was to stop potential contamination of the injector pintles, that tells me they are very susceptible to fuel contamination?