Oil Pump Flow Rate

The figure of 9 pints, or 1.125 gallons, per minute at 1300 rpm would be significantly higher than these numbers. The best performance I saw was just under .75 gpm at 1100 rpm.

For cc's per rev of the camshaft, I'm getting a range of about 3-5. Math might be wrong though.
 
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alexiskai said:
Google "Operation Paperclip"
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Thanks, Alexai. I was aware that the US used German scientists to do things that they couldn't. They were heavily involved in US development of the jet engine, nuclear power, rocketry and more from what I have heard but I'd never heard that term before.
 
Yes the US did accelerate the space and nuclear programs by using the German scientists
What many do not know is how close they were to a fusion reaction and how that would have affected the war

There was a fictional book about that years ago that had a different outcome of the war
Look up the Proteus project

John
 
We got a cash grant from the US in the 50's which half funded the development the space tracking gear. It allowed the moon walk on TV. However, we did have imperial measurements then.

About Edward Bowen the Welsh physicist:
"He also encouraged the new science of radioastronomy and brought about the construction of the 210 ft radio telescope at Parkes, New South Wales. During visits to the US, he met two of his influential contacts during the war, Dr. Vannevar Bush who had become the President of the Carnegie Corporation and Dr. Alfred Loomis who was also a Trustee of the Carnegie Corporation and of the Rockefeller Foundation. He persuaded them in 1954 to fund a large radio telescope in Australia with a grant of $250,000. Bowen in return helped to establish American radio astronomy by seconding Australians to the California Institute of Technology. Bowen played a key role in the design of the radio telescope at Parkes. ...
"The Parkes Telescope proved timely for the US space program and tracked many space probes, including the Apollo missions."
https://en.wikipedia.org/wiki/Edward_George_Bowen

"The success of the Parkes telescope led NASA to copy the basic design in their Deep Space Network, with matching 64-metre (210 ft) dishes built at Goldstone, California, Madrid, Spain, and Tidbinbilla, near Canberra in Australia."
https://en.wikipedia.org/wiki/Parkes_Observatory
 
Maybe I missed it, what is the ratio of camshaft RPM to oil pump RPM? 1 to 1? OR?
 
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johnneilson said:
Katy

If you look at the design the oil pump is driven same as distributor
1/2 crank speed
Same as camshaft
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This question flashed through my mind earlier as I read this thread. I think the pump turns slower than the cam shaft because of the angle at which the teeth on the cam shaft and the driven gear are cut. I think that for the pump to turn at the same speed as the cam shaft, the teeth would need to be cut at 45° and I'm certain they are not.
How could one reasonable question go in so many directions as this has and still be discussed???
 
Synchro909 said:
This question flashed through my mind earlier as I read this thread. I think the pump turns slower than the cam shaft because of the angle at which the teeth on the cam shaft and the driven gear are cut. I think that for the pump to turn at the same speed as the cam shaft, the teeth would need to be cut at 45° and I'm certain they are not.
How could one reasonable question go in so many directions as this has and still be discussed???
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The camshaft gear and the distributor/oil pump drive gear each has 11 teeth.

The gear ratio is 1 to 1 and is needed to keep the distributor and camshaft synchronized.
 
Terry Burtz said:
The camshaft gear and the distributor/oil pump drive gear each has 11 teeth.

The gear ratio is 1 to 1 and is needed to keep the distributor and camshaft synchronized.
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Terry, you are dead right. I was looking (in my mind's eye) at the angle of the teeth and didn't consider the distributor at all.
 
The bottom line to this discussion is that we have stumbled onto an unknown about the Model "A" that needs a) a factory drawing or spec with the design flow rate of the oil pump or, b) an accurate test spinning a new condition pump at 3 different RPMs (idle; mid-range speed; highway speed) and measuring the pump's output in an accurately graduated vessel. I suspect that the pumps flow rate is not linear.
Without a reference to how the numbers mentioned in this is post were determined, I cannot accept any of the published values.
 
Bob Bidonde said:
The bottom line to this discussion is that we have stumbled onto an unknown about the Model "A" that needs a) a factory drawing or spec with the design flow rate of the oil pump or, b) an accurate test spinning a new condition pump at 3 different RPMs (idle; mid-range speed; highway speed) and measuring the pump's output in an accurately graduated vessel. I suspect that the pumps flow rate is not linear.
Without a reference to how the numbers mentioned in this is post were determined, I cannot accept any of the published values.
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Go on line and read the Fort Worth Model A Club’s spec sheet for these cars.

You might be impressed. It is very complete. I would think that it had to have come from engineering records. To complete for any one person or local group to have dug up.

Just my thoughts.
 
WHN said:
Go on line and read the Fort Worth Model A Club’s spec sheet for these cars.

You might be impressed. It is very complete. I would think that it had to have come from engineering records. To complete for any one person or local group to have dug up.

Just my thoughts.
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Except that the spec on the spec sheet was nowhere close to the actual pump volume that Randall measured, even taking into account the informality of the test. The spec is useless if it doesn't represent the pump's real-world performance.
 
Any pump , even a worn one will put out near its max flow, BUT raise the pressure and it will not, it will by pass the gears in side,
If this were not fact, you would never have to replace a worn pump on machinery.
Lawrie
 
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