MAHLE Piston, Liner, Ring
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MAHLE PISTON, LINER, RINGS
Piston systems for passenger cars
The thermal and mechanical loads on pistons in modern gasoline and diesel engines have seen a massive increase, primarily due to higher levels of specific output. Furthermore, the pistons are intended to increase engine efficiency, for example through reduced weight and friction. The MAHLE product range includes highly stress-resistant pistons that contribute to reducing fuel consumption for both types of combustion.
Gasoline pistons
The demands placed on pistons for gasoline engines have been continuously tightened over the past years. Higher performance requirements trigger increased thermal loads. At the same time, downsizing concepts have increased mean and peak pressures, while high-speed concepts impose greater inertia forces.
MAHLE provides years of experience and innovative solutions—and continuously adjusts the existing product range to tomorrow's requirements.
Diesel pistons
Injection pressures of up to 2,200 bar, mean pressures of up to 31 bar, peak pressures of up to 210 bar, specific power output of up to 100 kW per liter, and ever lower exhaust gas emissions—these are the current requirements for modern passenger car diesel engines.
In order to overcome severe loads due to high temperatures and pressures, MAHLE has developed passenger car diesel pistons made of aluminum as well as diesel pistons made of steel.
Forged pistons
The state of the art in motorsport is now used in highly loaded series production engines as well: the forged piston. For the same alloy, they have a finer microstructure than cast pistons. The production process results in greater strength. As a result, the pistons can withstand even the high loads in motorsport and in engines with exceptionally high specific output. They are already being used today in sporty series vehicles with over 130 kW/L. Another advantage of forged pistons is the potential to produce thinner walls, thus reducing weight.
Cylinder liners
Due to the lift motion of the piston and piston rings, their partner—the cylinder surface—is also subject to high mechanical loads and must withstand increased ignition pressures and speeds. In order to reduce wear, the running surface should be smooth and the lubrication between the sliding partners must be ensured. The type and quality of the running surface effects oil consumption as well as the wear of the two components.
MAHLE offers a product range that is based on state-of-the-art technology. The development competence for individual solutions has grown over the years.
Piston rings
In addition to the task of sealing off the combustion chamber, piston rings also have the function of dissipating the heat that arises in the piston to the cylinder surface and that of controlling the oil balance.
As temperatures, pressures, and rotational speeds continue to rise, piston rings are subjected to ever increasing loads. Concepts for lower wear and friction, better sealing, and greater break resistance are in demand. MAHLE is therefore continuously developing new coatings and ring design variants.
The MAHLE piston ring product range offers the optimal piston ring or piston ring pack for every engine. The broad range of products includes compression rings and oil control rings in various designs, profiles, and technologies.
To confirm that this part fits your vehicle, check your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.
Brands: Renault, Ford, Volkswagen, Mercedes Benz, BMW, Skoda, Seat, Daihatsu, Daewoo, Audi, Opel, Kia, Suzuki, Alfa Romeo, Opel, Kia, Lada, Dacia, Mazda, Toyota, Nissan, Honda, Hyundai, Fiat, Chevrolet, Mitsubishi
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