Engine cooling
Water pumps - cooling for a long engine life
The water pump is the central component of the cooling circuit and is essential for the smooth operation of the engine. Mechanical water pumps are a well-established solution. Electrically driven coolant pumps, on the other hand, ensure that the engine is cooled as required. This reduces the power requirements whilst also cutting down on frictional loss, fuel consumption and pollutant emissions. Pierburg's production facilities produce more than seven million mechanical and electric water pumps for motor vehicles and commercial vehicles each year.
With its innovative portfolio, Motorservice also offers water pumps from Pierburg for applications in motor vehicles and utility vehicles. The spare parts expert is a full-range supplier in this segment: This means that customers receive everything from a single source – min premium quality and with a full guarantee for engine and cooling.
Mechanical water pump
The cooling liquid of the water pump absorbs the heat from the engine block and cylinder head and releases it into the ambient air through the cooler. Depending on their design, mechanical water pumps are located either externally on the engine in their own pump housing or are flanged directly on the crankcase and are driven by a V-belt, toothed belt or the engine directly.
Quality features of the water pumps:
- High-quality sliding ring sealing cartridge
- Maintenance-free, long-life rolling bearings
- Flow-optimised impellers made from plastic, steel, aluminium or brass
- Gaskets and O-rings are included in the scope of supply
- OE expertise from a technology leader
Variable mechanical water pumps
With its variable mechanical water pumps, Motorservice offers another innovative state of the art and up to the minute thermalmanagement product in the aftermarket sector. The pumps are used to comply with current and future emissions standards.Regulated and demand-based cooling saves fuel and reduces CO2 emissions. The following options are available to regulate thevolumetric flow: electromagnetic couplings, thermostat modules with thermostat valve, electronically actuated rotary slide valveswith worm gear, covering the impeller with an electro hydraulic or pneumatic adjustable ring, and pneumatic bypass flaps insidethe pump module. As a result, the pumps are in line with the current trend towards smart accessories in combustion engines.
Electrical water pump
Electrical water pumps make a significant contribution to emission control on modern engine designs. A delivery rate that is not dependent on the engine speed enables demand-based cooling. This reduces the power requirements whilst also cutting down on frictional loss, fuel consumption and pollutant emissions. Pierburg has made this technology ready for series production and is the world’s first series-production supplier of electrical water pumps.
For applications in battery-electric vehicles, Motorservice is further expanding its aftermarket program. Three new articles from Pierburg can be used to replace all coolant pumps used in Tesla vehicles (Model 3, S, X, Y). This is possible thanks to the all-purpose brackets included in the scope of supply. This means that 14 Tesla products can be replaced with just three coolant pumps from Pierburg. In this way, Motorservice is helping its customers make much more efficient use of their stockkeeping.
Features of these electrical water pumps for all Tesla vehicles:
- In-house development from Pierburg
- Unmistakable blue design
- Long-term validation on the test rig and in the vehicle
- Includes attachment material (brackets, gaskets)
- ViO (Vehicles in operation): 4.5 million
- Pumps installed in Tesla vehicles: approx. 11.5 million
Water circulating pump
Water circulating pumps are used where cooling or heating functions need to be performed independently of the coolant circuit. In independent heating systems, water circulating pumps are used, for example, to rapidly heat the passenger compartment.
The first generation alone was tried and tested millions of times over, proving itself to be a simple and robust coolant pump. The second to fourth generations then underwent further optimisation in terms of dimensions, weight, control and hydraulic power.