External gear pumps are the most popular hydraulic pumps in low-pressure ranges due to their long operating life, high efficiency and low cost. They are generally used in a simple machine. The most common form of external gear pump is shown in Figs. and.

External gear pumps are particularly suited for pumping water, polymers, fuels and chemical additives. Small external gear pumps usually operate at up to 3500 rpm and larger models, with helical or herringbone gears, can operate at speeds up to 700 rpm.

The external gear pump technology is a type of positive displacement pump. External gear pumps simply use the actions of gears to transfer different types of fluids. In this article, we will illustrate the main features of external and internal gear pumps, …

2024年6月23日 · External gear pumps, known for high pressure and flow rate capabilities, are ideal for industrial applications. With their smooth and quiet operation, internal gear pumps handle various fluids, making them perfect for precise flow control tasks.

Gear pump is the positive displacement pump in which the suction is created by rotation and meshing of two gears. The fluid enters into the pump through the inlet and is transferred through the outlet port.

2024年12月2日 · External gear pumps are a type of rotary positive displacement pump tracing back to the late sixteenth century. They were often driven by water wheels as they can utilize simple rotation of gears to transfer fluids.

Gear pumps are one of the most popular types of positive displacement pump; with internal and external variations. They are commonly used for the transfer of high viscosity oils and other lubricating fluids at relatively high pressures. This guide gives a …

External gear pumps are a popular pumping principle and are often used as lubrication pumps in machine tools, in fluid power transfer units, and as oil pumps in engines. External gear pumps can come in single or double (two sets of gears) pump configurations with spur (shown), helical, and herringbone gears.

2024年1月22日 · As a type of positive displacement pump, external gear pumps are known for their simplicity, compact design, and reliability. They operate with a pumping action akin to internal gear pumps, where two gears come in to and out of mesh to generate flow.

2024年8月27日 · External gear pumps are a reliable and efficient choice for fluid transfer and hydraulic systems. Understanding their components, advantages, applications, and specifications can help you make an informed decision when selecting a pump for your needs.