Louis Ott's full valve cover video now on youtube
#151
I am surprised that you would want to bring up those threads up here. In case people are interested, here they are:
http://speedtalk.com/forum/viewtopic.php?f=1&t=21630
http://speedtalk.com/forum/viewtopic.php?f=1&t=21471
http://speedtalk.com/forum/viewtopic.php?f=1&t=205
The reason why I am surprised that you'd want to bring those threads up here is that they have lots examples of you making up stuff and of your overall depicable behavior.
Someone who'll read those thread will also see me being wrong about stuff in those threads, but that doesn't particularly bother me because I am often wrong.
http://speedtalk.com/forum/viewtopic.php?f=1&t=21630
http://speedtalk.com/forum/viewtopic.php?f=1&t=21471
http://speedtalk.com/forum/viewtopic.php?f=1&t=205
The reason why I am surprised that you'd want to bring those threads up here is that they have lots examples of you making up stuff and of your overall depicable behavior.
Someone who'll read those thread will also see me being wrong about stuff in those threads, but that doesn't particularly bother me because I am often wrong.
#152
You have to actually READ the article. Look at the very last picture as well.
I accept your apology.
#153
Nordschleife Master
Thread Starter
#154
The county just staged an intervention with my yard. I had to dispose of four vehicles. Two left this morning. Oh well. When I moved from California I had to dispose of 19 vehicles.
#155
Nordschleife Master
Thread Starter
http://en.wikipedia.org/wiki/Gear_pump You have to actually READ the article. Look at the very last picture as well. I accept your apology.
It is my understanding that the definition of a generated rotor pump requires that the outer gear has one more tooth than the inner gear. The pictures in the page that you link to are gerotor pumps and they have N inner gear teeth and N+1 outer gear teeth.
The Porsche 928 oil pumps have 9 inner theeth and 11 outer teeth. Therfore, they are not gerotor pumps.
If I have misunderstood the definition and history of generated rotor / gerotor pumps, and someone presents credible evidence of it, retraction and apology will be coming. I wouldn't hold my breath, though, givent hat this is the wikipedia definition of a gerotor pump:
http://en.wikipedia.org/wiki/Gerotor
"A gerotor is a positive displacement pumping unit. The name gerotor is derived from "Generated Rotor". A gerotor unit consists of an inner and outer rotor. The inner rotor has N teeth, and the outer rotor has N+1 teeth. "
#156
Under the Lift
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The Porsche pump is an internal gear pump but not a Gerotor. Gerotors are a subset of internal gear pumps. They are missing the crescent and always have 1 more tooth on the outside gear.
http://www.vianenterprises.com/Gerotor.htm
http://www.pumpschool.com/principles/gerotor.htm
http://www.vianenterprises.com/principle.htm
Carry on....
http://www.vianenterprises.com/Gerotor.htm
http://www.pumpschool.com/principles/gerotor.htm
http://www.vianenterprises.com/principle.htm
Carry on....
#157
The Porsche pump is an internal gear pump but not a Gerotor. Gerotors are a subset of internal gear pumps. They are missing the crescent and always have 1 more tooth on the outside gear.
http://www.vianenterprises.com/Gerotor.htm
http://www.pumpschool.com/principles/gerotor.htm
http://www.vianenterprises.com/principle.htm
Carry on....
http://www.vianenterprises.com/Gerotor.htm
http://www.pumpschool.com/principles/gerotor.htm
http://www.vianenterprises.com/principle.htm
Carry on....
And Wikipedia has listed an example where the definition of a gerotor has been updated to N+1 minimum.
Perhaps these pumps are members of the set of gerotor pumps that are not gerotor pumps. Or perhaps members of the set of internal gear pumps that are not internal gear pumps.
This warrants careful investigation. Or perhaps this was a red herring being fed to a black swan?
#158
Nordschleife Master
Thread Starter
No, the Porsche pump is an internal-external gear pump. Look at patents 3204564 (Daimler Benz) and 3785756 (GM). And Wikipedia has listed an example where the definition of a gerotor has been updated to N+1 minimum. Perhaps these pumps are members of the set of gerotor pumps that are not gerotor pumps. Or perhaps members of the set of internal gear pumps that are not internal gear pumps. This warrants careful investigation. Or perhaps this was a red herring being fed to a black swan?
The definition of a gerotor pump includes that for a pump to be a gerotor pump it must have one and only one more tooth in the outer gear. Porsche 928 pumps have two more teeth in the outer gear than in the inner gear and are therefore not gerotor pumps. You claimed to have investigated and measured a Porsche 928 gerotor pump. Either you measured an actual pump but didn't know what a gerotor pump is or you just made up the whole thing. Which one is it?
#159
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Whatever. Believe what you want. Wikipedia is always right. I hope you guys are getting something out of this. I should stay out of the way.
#161
Aren't definitions and set theory fun?
#162
Rennlist Member
#163
Nordschleife Master
Thread Starter