Their design is similar to a positive displacement gear pump.

A rugged industrial quality gear pump gets the job done fast.

Usually a gear pump of the sickle type is used.

Some gear pumps are designed to function as either a motor or a pump.

(See exploded view drawing of a gear pump to the right).

Unlike external gear pumps, however, the lobes do not make contact.

Throughout the years various improvements to gear pump design have led to other patents and product features being developed.

In fact it is normal to use a simple gear pump to inject the polyamide material.

Gear pumps are used frequently in oil burners because of their simplicity, stability and low price.

From gear pump, fuel flows through the filter screen and to the pressure regulator.

Bypassed fuel flows back to the suction side of the gear pump.

Some internal gear pumps have an additional, crescent-shaped seal (shown above, right).

The gear pump isolates the flow from the pressure fluctuations found in the extruder.

For increased flexibility separate drives are used for the extruder and gear pump.

These systems typically operate with a larger gear pump and larger hydraulic reservoir.

Fluid for the windshield spraybar system is provided by an on-demand gear pump.

Gear Pump: Located at the rear of the fuel pump.

Small engines, or scooters may have internal gear pumps mounted directly on their crankshaft.

The original gear pump design has been developed into modern and reliable machines capable of working for up to 100,000 hours on important lubrication duties.

Gear pumps are sold for lubrication duties in gas turbines and air compressors.

The swept volume or displacement of gear pumps for hydraulics will be between about 1 and 200 millilitres.

Gear pumps are also widely used in chemical installations to pump high viscosity fluids.

For the first time, there were commercial scale supplies of gear pumps to an assembly line to one of a tractor plants abroad.

Gear pumps are often supplied as multi-pumps.

Gear pump operation & maintenance.