The gear pump is used in automotive hydraulic systems, as well as in various industrial sectors. The fact is that such devices can pump liquids of different degrees of viscosity and are quite durable, so they can be used for a long time.
The device is used in the chemical (for pumping alkalis, shampoo, emulsions, oil products), food (pumping cocoa, caramel, honey cream), petrochemical and paint industries. Moreover, the unit can process a huge amount of liquid.
The gear pump has a fairly simple device. It consists of several working chambers, which are formed by the working surfaces of the wheels with teeth. The whole mechanism is housed in a sturdy case made of cast iron, steel or aluminum, and is closed by side covers. A feature of the device is a small number of components. The advantage of the unit is also that the elements can be easily replaced in case of breakage. Due to these features, the pump is in demand and is widely used.
It should be noted that the gear pump can be multi-sectional, with external or internal gearing, and the second option is more compact. You can also highlight multi-stage devices. As for the gears, the teeth in them can be both chevron and oblique. The most common is an external gearing unit. It should be noted that the devices can have different volumes.
Gear pumps have many advantages:
- provide high performance and uniform fluid flow;
- simple and reliable;
- can pump the most different in viscosity liquids ;
- they can be used long enough, but it is not difficult to take care of them.
However, you need to be careful when choosing a device, since if low-quality spare parts were used in its manufacture, they can quickly wear out. Moreover, it is necessary to pay attention to the fact that the teeth are uniform, otherwise the fluid flow will be uneven.
A gear pump, the principle of which is quite simple, is very common today. It works as follows: an engine is mounted inside the housing on which the drive gear is mounted, it is firmly engaged with the teeth of the other elements. These elements are driven by the driving part. When the pump is turned on, the teeth capture liquid and move it towards the supercharger, pressing it to the body walls. Thanks to it, the details of the device are able to cool, so the device does not overheat.
The gear pump of the internal clutch should be used at low pressures, since they are small in size, and therefore their productivity is low. Therefore, if you need to use a device that can withstand high pressures, then it is better to use multi-stage devices. In order to provide several fluid flows that will not depend on each other, multi-gear apparatuses are used.