Belt- or gear-driven water injection pumps

[j-rod]

What is available for gear- or belt-driven pumps? I would like to drive both the injection supply pump and also the water injection pump from the vacuum pump location or off of the vacuum pump, but I'm not sure how feasible that may be...may have to go to one belt-driven pump. Thoughts?

 

[j-rod]

Found what I need.

 

[Smokin Monster]

And...???

 

[rockjeep73]

What did you find. I am interested.

 

[Begle1]

Rip apart a gasoline-powered pressure washer and put a pulley on the pump shaft.

 

[rockjeep73]

How much flow is needed. I am assuming pressure is in the 750-1000psi range from what I have read. Just wondering how much water the big pullers burn and how much pump you need to keep up with it. Does anyone make a front cover mounted pump or are they all belt driven?

 

[BigBadDodge]

Here is the Schied set up, it's gear driven:

The below statment came from the DP article on kents truck at its pretty acurate:

cylinder temperatures are controlled by a Scheid Diesel water injection system that sprays 500 psi of water into the intake in 10 locations. The water injection pump is driven off the engine's timing gear set, and the system is designed to begin injecting water when the boost levels reach 70 psi. By the time the engine reaches 100 psi of boost, the water injection system is completely on and regulates the exhaust gas temperatures to approximately 1,400 degrees. Should the exhaust gas temperatures reach 1,500 degrees, the Corsa data logger sets an alarm and initiates an additional stage of water injection to cool the engine. The engine will consume 1 to 1 1/2 gallons of water during each pass.

 

[BigBadDodge]

Boost operated simpson valve which sends water to the water manifold and the two selinoids that open with a predetermined set point via the Corsa.

BBD

 

[KILLER 'B']

Here is the Schied set up, it's gear driven:

Scott..... Why is there a STORM block in this picture?......... oke:

 

[BigBadDodge]

I should have changed the second digit to a 3

BBD

 

[KILLER 'B']

To revive this thread a bit, is is strictly water that's being injected? If so, the pumps don't malfunction without lubricity?

 

[SINNER]

Most run a water soluble pump lubricant.

 

[rockjeep73]

Can someone explain why the simpson valve is used? Could it be replaced by electric solenoids only?
Thanks

 

[Freezingsystems]

Can someone explain why the simpson valve is used? Could it be replaced by electric solenoids only?
Thanks

I believe by looking at this its a proportional control valve for flow of water to manifold. Basicly more boost more water as boost rise so does the needle valve resulting in higher flow of water works good when using high pressure pumps that have a big differential in pressure weak valves can stick open or not open. Expensive valve for sure I been putting together a more cost effective and still using same concept. Hope this helps.

 

[rockjeep73]

I believe by looking at this its a proportional control valve for flow of water to manifold. Basicly more boost more water as boost rise so does the needle valve resulting in higher flow of water works good when using high pressure pumps that have a big differential in pressure weak valves can stick open or not open. Expensive valve for sure I been putting together a more cost effective and still using same concept. Hope this helps.

Thanks for the info, care to release any info on your setup. How much do the simpson valves go for?

 

[RJM06590]

Would a Nitrous solenoid work? I'm not too familiar with them.

 

[Begle1]

I'm using NOS nitrous solenoids with my pressure washer set at 1200 PSI.

Pressure washers are designed to be used without any lubrication.