Crescent dimensions in Crescent Internal Gear Pump
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Re: Crescent dimensions in Crescent Internal Gear Pump
Re: Crescent dimensions in Crescent Internal Gear Pump -- sdinse	Post Reply	Top of thread	Forum

Posted by: randykimball ® 12/20/2005, 20:11:44 Author Profile Mail author Edit

It may effect the flow of fluid as far as fluid dynamics are concerned. However, the volume of a liquid fluid pumped by a gear pump is a matter of the volume difference between the gear teeth meshed versa the teeth not meshed. You are drawing liquid into the teeth and pushing that same volume out of the teeth when meshed. Only PRM will provide a direct volume change ... or larger gears / longer gears. That said, realize that the tolerance of fit between the teeth, the ends of the gears to the chamber, and the major diameter of the teeth to the cavity will effect leakage therefore effecting volume and output pressure. As the teeth are meshed fluid will be allowed to recirculate back according to the tolerance of these fits. Now, with a gas, .... vacuum, compression, and velocity get into the picture. In this case the shape of the crecent, ports, exhaust chamber, condition on the inside of manifolds, the vortex, tempertature of the fluid, moisture content, ... many things effect the effeciency. The worst suggestion of your lifetime may be the catalyst to the grandest idea of the century, never let suggestions go unsaid nor fail to listen to them. Modified by randykimball at Tue, Dec 20, 2005, 20:17:24

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