S-Prihadi

Dang, I screw-up a bit.
For the oil stop valve near the oil spray nozzle, I forgot to take the restrictor out...


It is not actually a restrictor per se, that is a push pin for schrader valve to open when we want to charge or recover refrigerant. HVAC valve or hose always at one side has that "restrictor".
The hoses, I have removed the restrictor long time ago.

This will slow oil flow some and will cause slight increase in head pressure aka PSI.

I am too lazy to test again. I just completed cleaning the oil mess
I would say this restrictor could generate about 2 psi extra restriction and X amount of oil flow reduction per minute.

Never mind....at least we know 41 PSI and up is already very good oil spray.

Rickman30

Nice to see I'm not the only one who ain't afraid to repurpose things way outside of their design parameters. Especially when the data derived is awaited by so many.

Thanks S-Pirhadi, you da man.

CaliBenzDriver

As tested these squirters have a good reach near 40Psi. Enough to provide some oil to our moving pistons.


> VOLUME FLOW:
What volume does the pump need to pressurize ALL open squirters?
They start opening around 30Psi and bleed valve is sitted open around 40psi. They have a volume flow times how many squirters.


> FLOW VS. VISCOSITY:
​​​​​​Using test Oil at different temperatures
Ex: cool:55F/warm:200F
Can we plot how viscosity affects squirters output volume?


> LINEAR TEST PLOTS:
With only a few data points we can extrapolate straight curves to see what maybe happening in our engine application.
Such as what kind of output flow at 40, 50, 60Psi?


I am guessing my test oil delivers 50+Psi at driving Rpm, where idle maybe near 35Psi.
Where a stock engine on 0w40 can not deliver that below 3500.Rpm and who know at what RPM 5 or 6k??

S-Prihadi

It will be great if one can heat up the oil when doing the test, but too much hardware I do not have.
It has to be steel canister and I can't use my 8.6 BAR rated plastic water filter housing..... he he he he.

One thing about this simple pipe type oil spray. The less the oil viscosity, the more flow and distance the oil spray can achieve. So hotter thin oil will spray further and more by volume.
This I know when I was experimenting with oil pump for my dive compressor offline oil filtration system. Oil viscosity is a nightmare for simple pump not designed for oil pumping.


..

Here is from nozzle manufacturer. Not simple hollow pipe nozzle, but good info nevertheless.
https://www.lechlerusa.com/en/resour...acts/viscosity

Bakery nozzles
https://www.spray-nozzle.co.uk/resou...viscous-fluids