how much of a pain in the rear....
02-14-2011, 12:10 PM
#31
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Originally Posted by Cherockee
Per Wikipedia:
The first use of direct gasoline injection was on the Hesselman engine invented by Swedish engineer Jonas Hesselman in 1925[1][2]. Hesselman engines use the ultra lean burn principle; fuel is injected toward the end of the compression stroke, then ignited with a spark plug. They are often started on gasoline and then switched to diesel or kerosene[3]. Fuel injection was in widespread commercial use in diesel engines by the mid-1920s. Because of its greater immunity to wildly changing g-forces on the engine, the concept was adapted for use in gasoline-powered aircraft during World War II, and direct injection was employed in some notable designs like the Junkers Jumo 210, the Daimler-Benz DB 601, the BMW 801, the Shvetsov ASh-82FN (M-82FN) and later versions of the Wright R-3350 used in the B-29 Superfortress.
found here:http://en.wikipedia.org/wiki/Fuel_injection
So I guess you could say that fuel injection (direct or otherwise) has been around since the '20's.
The first use of direct gasoline injection was on the Hesselman engine invented by Swedish engineer Jonas Hesselman in 1925[1][2]. Hesselman engines use the ultra lean burn principle; fuel is injected toward the end of the compression stroke, then ignited with a spark plug. They are often started on gasoline and then switched to diesel or kerosene[3]. Fuel injection was in widespread commercial use in diesel engines by the mid-1920s. Because of its greater immunity to wildly changing g-forces on the engine, the concept was adapted for use in gasoline-powered aircraft during World War II, and direct injection was employed in some notable designs like the Junkers Jumo 210, the Daimler-Benz DB 601, the BMW 801, the Shvetsov ASh-82FN (M-82FN) and later versions of the Wright R-3350 used in the B-29 Superfortress.
found here:http://en.wikipedia.org/wiki/Fuel_injection
So I guess you could say that fuel injection (direct or otherwise) has been around since the '20's.
02-14-2011, 01:27 PM
#34
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There are a lot of grey areas in this topic that's been raised, and if it were me I would exclude diesel engines from the discussion altogether, since they are a very different type of engine. So if you want to exclued airplane engines, then you should also exclued diesel engines too.
I am just trying to help
02-14-2011, 02:27 PM
#35
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Originally Posted by 1991Jeep_Man
Will this end?
I'm being educated here so as long as it doesn't get outta hand I'd like to see this discussion continue. They aren't arguing for the heck of it they are having a discussion.
Carry on sirs
Edit. The original question has been answered long ago an so they are not hijacking the thread that's why I'd like to see it continue.
02-14-2011, 03:24 PM
#36
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[QUOTE=huntingman2706217;860815]direct injection? direct injection is how the new Ford V6 motor is getting crazy good gas mileage with crazy good power... direct injection is the cummins 5.9... direct injection means the injector injects right down onto the cylinder head and there is no throttle body or anything... found on boats as well... but not perfected in a gas motor till ford built theres... from 86-01 they all had throttle bodies on the I6... just two different style...
jus to add to this disscussion, he is right direct injection means that fuel is sprayed directly into the cylinder and does not enter through a valve. however the use of a throttle body is still reqiured to control air flow but only on a GASOLINE engine. on a diesel engine no throttle body is used throttle pedal controls the injector pump and the fuel is ignitied by the compression and pressure of the fuel being sprayed into the cylinder not spark like a gas motor. deisel injectors run at like 20kpsi. gas motors like th gm 2.0 I4 turbo ecotec and the gm 3.6D.I. v6 pressure at the injector is like 2176psi. and is achevied by a small high pressure pump run off the cam, they still do have a normal fuel pump in the tank. p.s im am a gm mechanic who has been trainedo n these engines and work on them i can witout a doubt verify that these D.I. GASOLINE engines have a throttle body.
jus to add to this disscussion, he is right direct injection means that fuel is sprayed directly into the cylinder and does not enter through a valve. however the use of a throttle body is still reqiured to control air flow but only on a GASOLINE engine. on a diesel engine no throttle body is used throttle pedal controls the injector pump and the fuel is ignitied by the compression and pressure of the fuel being sprayed into the cylinder not spark like a gas motor. deisel injectors run at like 20kpsi. gas motors like th gm 2.0 I4 turbo ecotec and the gm 3.6D.I. v6 pressure at the injector is like 2176psi. and is achevied by a small high pressure pump run off the cam, they still do have a normal fuel pump in the tank. p.s im am a gm mechanic who has been trainedo n these engines and work on them i can witout a doubt verify that these D.I. GASOLINE engines have a throttle body.
Last edited by DesertFox4x4; 02-14-2011 at 03:34 PM.
02-14-2011, 03:37 PM
#37
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[QUOTE=DesertFox4x4;862913]
aahh... i figured because the DI diesels had no throttle body and were DI i guess i assumed the gas motors did not either... thought it was part of the whole DI system... and the cummins motors i know run up to 25k psi at WOT... just for the knowledge of others i guess lol...
direct injection? direct injection is how the new Ford V6 motor is getting crazy good gas mileage with crazy good power... direct injection is the cummins 5.9... direct injection means the injector injects right down onto the cylinder head and there is no throttle body or anything... found on boats as well... but not perfected in a gas motor till ford built theres... from 86-01 they all had throttle bodies on the I6... just two different style...
jus to add to this disscussion, he is right direct injection means that fuel is sprayed directly into the cylinder and does not enter through a valve. however the use of a throttle body is still reqiured to control air flow but only on a GASOLINE engine. on a diesel engine no throttle body is used throttle pedal controls the injector pump and the fuel is ignitied by the compression and pressure of the fuel being sprayed into the cylinder not spark like a gas motor. gas motors like th gm 2.0 I4 turbo ecotec and the gm 3.6D.I. v6 pressure at the injector is like 2176psi. and is achevied by a small high pressure pump run off the cam, they still do have a normal fuel pump in the tank. p.s im am a gm mechanic who has been trainedo n these engines and work on them i can witout a doubt verify that these D.I. GASOLINE engines have a throttle body.
jus to add to this disscussion, he is right direct injection means that fuel is sprayed directly into the cylinder and does not enter through a valve. however the use of a throttle body is still reqiured to control air flow but only on a GASOLINE engine. on a diesel engine no throttle body is used throttle pedal controls the injector pump and the fuel is ignitied by the compression and pressure of the fuel being sprayed into the cylinder not spark like a gas motor. gas motors like th gm 2.0 I4 turbo ecotec and the gm 3.6D.I. v6 pressure at the injector is like 2176psi. and is achevied by a small high pressure pump run off the cam, they still do have a normal fuel pump in the tank. p.s im am a gm mechanic who has been trainedo n these engines and work on them i can witout a doubt verify that these D.I. GASOLINE engines have a throttle body.
02-14-2011, 03:38 PM
#38
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well obviously i spelled it right in the first sentence of that post... in he same way so i dunno if my fingers got ahead of me or if i did it on my phone and had a typo and it "tried" to fix it for me... but if it tickles you that much have at it... lol...
02-14-2011, 03:51 PM
#39
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The paragraph I copied for everyone does state that they were widely used in commercial diesel engines (trucks and such) by the mid-20's. I was merely supporting the fact that fuel injection has been around for a long time (since the mid 20's I would guess)
There are a lot of grey areas in this topic that's been raised, and if it were me I would exclude diesel engines from the discussion altogether, since they are a very different type of engine. So if you want to exclued airplane engines, then you should also exclued diesel engines too.
I am just trying to help
There are a lot of grey areas in this topic that's been raised, and if it were me I would exclude diesel engines from the discussion altogether, since they are a very different type of engine. So if you want to exclued airplane engines, then you should also exclued diesel engines too.
I am just trying to help
lol
02-14-2011, 04:21 PM
#42
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Is air not what's being compressed in the cylinders (diesel motor)? Don't 4 stroke diesels have a intake valve(s), an intake manifold, some kind of butterfly air valve (throttle) that opens/closes to limit/regulate the air flow through the air intake system, based upon the position of the accelerator pedal....no?
02-14-2011, 04:29 PM
#44
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Is air not what's being compressed in the cylinders (diesel motor)? Don't 4 stroke diesels have a intake valve(s), an intake manifold, some kind of butterfly air valve (throttle) that opens/closes to limit/regulate the air flow through the air intake system, based upon the position of the accelerator pedal....no?