Gear Pump Design

A textbook such as "Analytical Mechanics of Gears" would give guidance on the generation of tooth forms that would mesh properly. Some CAD (computer aided drafting) programs might also have this.

Do want to design (create an entirely new) gear pump, or buy (specify the requirements for) an existing gear pump?

banu.....

Purchase a quality pump, made in the USA, and copy each and every part.

Why do you want to design a gear pump? What do you want it to do?

Gear pump applications are very different (process, lube, hydraulic, medical, industrial.....).

Gear pump types are very different (internal, external, gerotor, microannular, etc), and involve very different designs and manufacturing methods.

For the simple types & appliocations it is probably easier and cheaper to buy what you want. For the more complicated ones it is best not to get involved unless you know what you are doing.

The design is quite complex since it is a problem of inter-teeth volume optimisation and also to avoid over compression which will destroy the bearings. T recommendation to use the gear manual is not enough since for some designs you will need special geometries not mentioned in the traditional books which deal only (most of them) with involute gears. After the design it is a very heavy phase of prototyping and test which requires test benches and a sophisticated instrumentation. It is VERY expensive!!!.

Today it is ONLY in very special cases as very high rpm or very viscous fluids recommended to design a pump. The best solution for you is to write the most correct specification and ask several manufacturers (there are may be hundreds of them) and ask for quotations.