How many teeth on our cam gear?

[McRat]

I forgot, and don't remember where I wrote it.

A CP3 pump has a 7.5mm bore x 7.5mm stroke x 3 cylinders. This is 331 mm3 potential. If it is not a "progressive" pump, that's about 1000mm3 per revolution.

Or my math sucks.

 

[malibu795]

shit i dont have mine near by me.... but got a crankshaft gear

crank gear has 42 teeth on it since the cam spins 1/2 the crank speed meen the cam gear would be 84 teeth

hope that help with the math pat :hug:

 

[nar]

Explain to me how you got 331?

 

[never satisfied]

86

 

[malibu795]

86

oops i missed a tooth on the crank gear :damnit:

nar


iirc cylinder volume can be calucalted by
bore x bore x stroke x.7854 = 1 cylinder or 331.34mm
7.5 x 7.5 x 7.5 x .7854= 331.34mm3 per cylinder
331mm3 x 3 cylinders = 993mm3


classification of the CP3 pump is a positive fixed displacement pump.... am i reading that right pat?

 

[Brayden]

I get 316.40625 mm3 of volume per revolution of the CP3 shaft. ((3.14)(R*R)7.5) =316.40625 ??????

You must divide the 7.5mm of bore / 2 to get the radius.. Then square the radius.. then mulitply by 3.142, then by 7.5 for the height of the cylinder.

Then multiply by 3 for the number of cylinders or plungers.


See below examples.

 

[Brayden]

1000mm3 is 1 liter... I doubt that it can displace a "Big Slam" of Mt. Dew every revolution. You can substitute a "liter of cola" also...

Hehe.. Super troopers.. Shenanigans... Liter-o-cola.

Ok I'll shutup now.

 

[mytmousemalibu]

:rofl::rofl::rofl: brayden!

 

[malibu795]

I get 316.40625 mm3 of volume per revolution of the CP3 shaft. ((3.14)(R*R)7.5) =316.40625 ??????

You must divide the 7.5mm of bore / 2 to get the radius.. Then square the radius.. then mulitply by 3.142, then by 7.5 for the height of the cylinder.

Then multiply by 3 for the number of cylinders or plungers.


See below examples.

i got 331.38 per cylinder with you formula....with all 3 piston you are looking at just shy of a 1000mm or one liter

 

[McRat]

oops i missed a tooth on the crank gear :damnit:

nar


iirc cylinder volume can be calucalted by
bore x bore x stroke x.7854 = 1 cylinder or 331.34mm
7.5 x 7.5 x 7.5 x .7854= 331.34mm3 per cylinder
331mm3 x 3 cylinders = 993mm3


classification of the CP3 pump is a positive fixed displacement pump.... am i reading that right pat?

Yes, I took one apart yesterday out of curiousity.

It's a normal radial piston engine design without a con rod, 2 stroke.

 

[McRat]

1000mm3 is 1 liter... I doubt that it can displace a "Big Slam" of Mt. Dew every revolution. You can substitute a "liter of cola" also...

Hehe.. Super troopers.. Shenanigans... Liter-o-cola.

Ok I'll shutup now.

1000mm is 1 cc. Or 1/1000th of a liter.

 

[Brayden]

Ahh.. my mistake..

So 1cc per rev... That doesn't seem like much does it, after looking at the plunger size does it Pat?

 

[duramaximizer]

So how is the CP3 geared in relationship to the cam.

BTW I took one all apart, I am thinking about a BBK for it LMAO.


But it's still apart, I will probably loose the pieces before I get it put back together.

 

[JOHNBOY]

The CP3 spins the same RPM as the crank.

 

[malibu795]

The CP3 spins the same RPM as the crank.

cp3 has a 43 tooth gear?

 

[duramaximizer]

So 3000 rpm at the crank is 3000 rpm for the CP3. co 3000 cc's per minute or 3 liters per minute.

 

[Brayden]

CP3 turns at cam speed... 1/2 of crank.... Although the CP3 drive gear is a bit smaller than the cam gear IIRC, so that would be overdriving it somewhat.. but not enough to get back to crank speed.

 

[05smoker]

cp3 has a 43 tooth gear?

Kentucky trucks have half that.:hehe:

 

[SmokeShow]

Kentucky trucks have half that.:hehe:

:hehe: :rofl: that is damn funny, I don't care who you are!!

 

[05smoker]

:hehe: :rofl: that is damn funny, I don't care who you are!!

:hug:

I was hoping you'd see that.

Sorry, back on topic