Kubota Engines & Indirect Injection

[rocknrod]

Re: Kubota Engines & Indirect Injection

Well this answers allot of my questions on indirect injection. As well as giving a laugh in the morning.

 

[art]

Re: Kubota Engines & Indirect Injection

Just can't seem to find anything better then a little chit chat at Tractorbynet!!

 

[zoltanthegypsy]

Re: Kubota Engines & Indirect Injection

Having recently completed my phD (phony Degree) in diesel mechanics, please allow me to clear up this issue.

I always understood why a basic degree was called a BS. Now it's clear why a PhD means "piled higher and deeper"

Z.

 

[MMH]

Re: Kubota Engines & Indirect Injection

...Indirect injection engines also tend to be a little quieter. But both camps have claimed efficiency advantages, so I don't know whether either has any real advantage there. I do know that the new VW engine is direct injected and they made a big deal out of the efficiency gains of that approach when they introduced the TDI (which stands for Turbo Direct Injection) engine. I do know that it is a tremendously more efficient engine than the older ones, but computer control may be more of a factor than direct injection - I don't know.QUOTE] I have always heard that the DI engines are significantly more efficient. That is why over the road trucks have been DIs for decades. One 'disadvantage' of DI was NOISE. This has been to a great extent mitigated by modern diesel injection systems (HEUI, common rail, etc.) There is much more to these systems other than 'computer control'. Modern injection systems enable a pre-injection event which minimizes the magnitude of the detonation that occurs in the primary injection event. The magnitude of the detonation is what caused the traditional diesel engine noise. Anyone remember the 'split-shot' PowerStroke injectors for the 96 & 97 model years? IDI would allow the pre-injection to occur in the pre-combustion chamber, thus were quiter. Remember how load the mechanically injected Dodge Ram w/ Cummins diesel was?

Now that the noise issue has been mitigated in 'modern diesels' and DI is more efficient, all auto/truck manufacturers are going to DI. No real need for tractors, especially CUTs & SCUTs. Think about it. Many of these tractors are operated less than 100 hours a year. So, let's call it 100 gallons per year. So even if a DI is 10% more efficient, we saved 10 gallons of fuel per year. Hard to justify an additional $3000 cost for advanced (and not needed) injection systems for CUTs.

Oh wait, there is the EPA angle. Soon we will require sophisticated injection systems, DPFs, urea injection, etc. The leftist wingnuts want to save the world by telling OTHERS what to do. No one will be able to afford a tractor. That's OK, they will be owned by the collective & controlled by the state. OBEY, OBey, obey...

 

[ENTS]

Re: Kubota Engines & Indirect Injection

Having recently completed my phD (phony Degree) in diesel mechanics, please allow me to clear up this issue. I know the engine (or is that motor) on my beloved B1700 has DIRECT fuel injection because I always pour the diesel DIRECTLY ..etc. etc. etc.....

ROFL...CGU:laughing::laughing:

 

[SPYDERLK]

Re: Kubota Engines & Indirect Injection

Having recently completed my phD (phony Degree) in diesel mechanics, please allow me to clear up this issue. I know the engine (or is that motor) on my beloved B1700 ...

It is engine. Motors are powered by engines.
larry

 

[leonz]

Re: Kubota Engines & Indirect Injection

As long as the Cuts and scuts have the indirect injection pump timing set to Zero degress T.D.C. I will have no issues with indirect injection, direct injection, consumption, erruption, dilution, miss direction, bad aim over the commode, gas dispersion and indegestion requiring over the counter calming remedies involving irish moss or calcium based stomach acid relievers- loss of pucker factor from stupid moves not included nor desired.

 

[kjung17]

Re: Kubota Engines & Indirect Injection

I know the engine (or is that motor) on my beloved B1700 has...

Paul, We all appreciate your insightful, perhaps inciteful, views on injection. As helpful as your explanation is, I must point out that engines run on fuel and motors are electric.:laughing:

 

[kjung17]

Re: Kubota Engines & Indirect Injection

It is engine. Motors are powered by engines.
larry

Spyder, As a technician, I feel a moral obligation to poke engineers whenever possible. A motor could be powered by a pump or compressor or some other exotic method. I cannot conceive a situation in which a motor is powered by an engine.

 

[SPYDERLK]

Re: Kubota Engines & Indirect Injection

Spyder, As a technician, I feel a moral obligation to poke engineers whenever possible. A motor could be powered by a pump or compressor or some other exotic method. I cannot conceive a situation in which a motor is powered by an engine.

:thumbsup: The engine powers the gen or drives the pump that enables the motor to run. In the large scale the Sun is the engine driving the Earth as a motor. Thru many physical and life processes the Earth then makes subsidiary engines or fuel for them.
larry