Every component and part inside a vehicle is of absolute importance, otherwise, it wouldn’t be there. The water pump follows that same philosophy. It is essential for the smooth running of a car, and without it, you can’t expect the engine to work at all. If the heart of your vehicle is unhealthy, you can’t expect the rest of it to properly work. The water pump gives your car the ability to function normally, and it allows you to drive without suffering any overheating issues.
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An electric water pump performs a very important job in your car. It helps move the coolant from the radiator to all the necessary parts in the powertrain. By utilizing a controller, it can determine how much coolant circulates through the engine at given temperature ranges and maintain a target temperature. The coolant cools down the engine allowing it to run smoothly and live longer. But, If the water pump fails, the engine produces excess heat, which sometimes results in irreparable damage.
But how does a water pump help? The pump works by pushing coolant inside the engine and absorbing its heat. The hot coolant then goes into the radiator where it cools off and recirculates back into the engine.
An electric water pump uses a motor to send coolant from the cooling system to the engine internals. The system engages once the powertrain starts to overheat. The ECU receives the signal, and it initiates the water pump. On the other hand, conventional pumps, sometimes referred to as mechanical water pumps, use the engine’s torque that drives a belt and pulley system. The harder the engine works, the faster the coolant is pumped. The liquid travels from the radiator to the engine block, then to the cylinder heads, and finally back to its origin.
The water pump is also connected with the cooling fan and the HVAC system. The fan aids in cooling the hot liquid while the HVAC system uses it in case the heater is on inside the car.
Continue reading: Types of automotive water pumps
The electric water pump truly is a lifesaver when it comes to your vehicle’s engine. But how important is it, and how many benefits does it provide? Let’s find out.
1 Pressurized Flow
The electric water pump has an edge over its mechanical counterpart. The latter works with the help of the crankshaft, which means it is dependent on engine speed. The former has an electric motor backing it up, so the coolant pressure is high at all times, and you get powerful coolant delivery into the various parts of the engine. This feature allows the system to cool down better and faster.
An electric water pump uses up a small amount of energy to function. It takes the 12V output from the car and performs a highly important service to the vehicle. Also, there is not a lot of energy loss when we use an electric pump. The constant power results in an uninterruptible supply of coolant to the engine. The mechanical pump, on the other hand, extracts energy from the crankshaft which is then transferred onto the belt and pulley system and finally onto the pump. The true power from the crankshaft is never fully transferred to the water pump.
Mechanical water pumps have several moving parts, resulting in friction and the production of more heat inside the engine bay. The idea is to reduce the amount of friction, and an electric water pump helps do that in the best way possible. The water pump motor runs efficiently and only when it is ordered. Otherwise, it stays dormant and ready. The electric pump also has lesser moving parts, and it comes in ideal packaging, which saves space and reduces friction.
Learn more: Discovering the main water pump components
If you are looking for the best supplier to get an electric water pump, no one is better than Industrias Dolz. The brand specializes in making high-quality automotive electric water pumps that are durable and last long. They produce around 5.5 million units of water pumps each year, which is only possible thanks to their robotized manufacturing plant. Furthermore, that also means that Dolz ensures the highest standards of quality that you won’t find anywhere else.
Water pumps are used in various settings, ranging from construction, agricultural, industrial and even residential.
Where there’s excess water that needs removal, a water pump is used to carry out the draining process as quickly as possible.
There’s a variety of different types of water pump however.
In the chapters below, we delve deeper into each one, including their respective features in more detail.
A water pump is a device whose main job is to increase water pressure in order to transfer the water, or liquid, from one place to another.
Water pumps can be powered by electricity, gas, diesel, and in remote places, even by means of solar energy.
There are different types of water pumps, but the main principle remains the same.
The motor converts the energy (kinetic or rotational) into hydrodynamic energy for the fluid flow.
Firstly, it’s important to point out that there’s two main categories of water pumps, namely:
While both of these types of pumps are designed to continuously move water from one point to another, the way they do so differs as we explore in further detail below.
The main purpose of any water pump is to move water or a particular liquid from one point to another.
This includes water extraction such as during excavations, after severe flooding, at sewage plants or from wells.
Positive displacement pumps work by delivering a fixed amount of water through mechanical contraction and expansion of a flexible diaphragm.
While such pumps are relatively efficient, there is the drawback that they need a very small clearance between the rotating pump and the unit’s outer edge.
Hence, rotation might be carried out at a slow speed.
In cases when higher speeds are necessary, the liquids might erode and consequently reduce the pump’s overall efficiency.
Positive displacement water pumps are commonly used as they are very efficient.
This is mainly because they remove air from the lines and consequently, eliminate the need for bleeding.
These pumps are ideal for liquids that have a high viscosity and where sensitive solids might be present.
Rotary displacement pumps include gear pumps, screw pumps, hollow disk pumps, rotary vane pumps and vibratory pumps.
All of these are considerably efficient as they are able to manipulate highly viscous fluids which typically have higher flow rates.
Such pumps are most commonly used to circulate lubricating oil in mechanical equipment.
They are also used to provide pressure for hydraulic operating systems.
Dynamic, or rotodynamic pumps, are velocity pumps which add kinetic energy to the fluid to raise its flow velocity.
As a result, the higher energy is transformed into pressure, until the velocity decreases as it nears the discharge line.
Dynamic pumps are used for water supply, to pump crude oil as well as in the food industry.
They are also commonly used in the chemical industry, and various commercial applications.
A centrifugal water pump makes use of a rotating impeller in order to move the water within.
Then it pressurises the discharge flow.
There are different types of centrifugal water pumps, including standard models and submersible models.
At times these kinds of pumps need recirculating liquid in order to prevent overheating problems which can be caused by low flows.
It is also important to prime or fill the pump with the pumped fluid in order to help it work properly.
These pumps work well when thin liquids need to be handled.
As a result, practically all kinds of liquids, even those with low viscosity can be pumped with centrifugal pumps.
They offer very high flow rates too.
Centrifugal pumps are used in various kinds of water system applications, especially for agricultural purposes.
Such pumps will typically move water from a dam or bore, direct it to the pipes for storage or to use it for irrigation.
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These pumps are also used for dewatering and in pumping sewage and construction-related applications.
They are commonly used to pump water supplies in buildings, and to pump water from domestic wells.
Such pumps are also used to boost the pressure in the water intake lines.
Most centrifugal pumps are compatible with pneumatic systems too.
Radial centrifugal pumps pressurise the pumped flow and move it outwards through downstream piping.
Axial pumps provide fluid motion by means of a lifting force caused by the impeller vanes.
Such pumps are typically used in diverse commercial, industrial and domestic settings.
These include the provision of water supply in residential areas, sewage disposal, in chemical, food and beverage manufacturing, as well as in oil and gas industrial operations.
Reciprocating pumps fall under the positive displacement pumps category.
They have an expanding cavity on the suction side, and a decreasing cavity on the discharge side.
The water pump will work by filling the cavity and displacing the fluid.
This is done alternately and with each cycle a constant volume is carried out.
Reciprocating pumps are commonly used to pump high viscosity fluids, such as oils, resins and paints.
They are ideal in applications where high pressure output is required.
Such pumps are generally self-priming and since they have the advantage of not being affected by pressure levels, they are ideal in applications where the supply is irregular.
Submersible pumps, as the name itself implies, will be submerged in the fluid.
They operate by using the principle of electric submersible pumping.
By lowering the flow pressure, the pressure at the bottom is also decreased.
Such pumps can be quite expensive since they might require the use of special electricity cables, and the electric usage is generally considerably higher.
They are used in deep wells such as oil wells, and in applications where the motor is able to operate under high pressures and temperatures.
They are also suited to dealing with groundwater flooding in basements to keep properties dry, using sump pumps that sit inside a pit.
A peristaltic pump is sometimes also referred to as a hose pump or a tube pump.
This type of pump works by applying positive displacement principles, whereby the fluid is supplied in the tubing by rotating rollers.
Then it is squeezed in a soft tube, and as the roller passes through it, it expands and forms a vacuum.
This enables the fluid to enter.
These rollers rotate either directly or by a motor, and there is no need for valves in such pumps.
Such pumps have the advantages of being self-priming and ideal for flow regulation.
They are tolerant to contamination with particles.
These kinds of pumps are ideal in cases where viscous and corrosive fluids are being handled.
This is because the only piece of the pump which comes into contact with the liquid is the tubing.
These pumps are relatively maintenance free.
A diaphragm pump, or membrane pump is another type of positive displacement pump.
The diaphragm is either made from rubber, thermoplastic or Teflon.
Its reciprocating action combined with the proper valves on the sides will pump the liquid.
There are three main types whereby:
The diaphragm is sealed with one front in the liquid being pumped, and the other in air, or in hydraulic liquid.
This diaphragm is flexible, so the volume of the pump chamber can increase or decrease as required. There is a set of non-return valves which block the reverse flow.
Electro-mechanical movement is carried out, and the system flexes the diaphragm, which has one head open for air.
One or more unsealed diaphragms are employed to pump on both heads.
When the volume of a chamber is increased, the pressure will diminish and as a result the fluid will make its way in the chamber.
This will later rise so that the fluid is driven out.
The cycle ends when the diaphragm moves up.
Such pumps are generally used when chemicals such as acids, bleach and caustics are involved.
They are also used to move abrasive fluids such as concrete.
These pumps are also commonly found in the aircraft and automobile industries.
Since there are several different types of pumps, you may feel a bit overwhelmed as to which one you should choose.
There are a number of factors that you will need to take into consideration before choosing, including:
Being aware of the various types of water pumps will allow you to choose the most suitable one for your needs.
Each of the water pumps has its respective pros and cons, and a number of considerations need to be taken into account prior to choosing.
It is recommended that you consult a professional pump expert so that you can be guided accordingly.
If you are looking for more details, kindly visit Automotive Mechanical Water Pump Supplier.