How an engine works

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Types of Cylinder Liners

Firstly Cylinder liners are the interior metal components within the piston that protect it from the wear and tear of the operation of the motor. Three basic types of liners are used: hot, dry and finned. The purpose of each type is to protect the piston from heat and impurities using slightly different methods. Cylinder liners are expensive, precisely manufactured products and are primarily purchased from specialty shops.

Dry Cylinder Liners

• Dry cylinder liners are among the basic piston protectors. They must withstand extremely high temperatures and guard against impurities, so they are constructed of high-grade materials, such as cast iron and ceramic-nickle plating. Dry liners are much thinner than their counterpart, wet liners. They do not interact with the engine coolant but instead provide a very close fit with the jacket in the cylinder block to protect the piston from heat and impurities.

Wet Cylinder Liners

• Wet cylinder liners protect the pistons in a different way than dry ones, but they are made from the same hardy material. They come in direct contact with the engine coolant. Sometimes the wet cylinder liners are fitted with tiny openings to help disperse the heat and impurities. These types of liners are called water-jacket liners but are simply another type of wet cylinder liner. If the liner doesn't have a cooling jacket, one is created by the liner by interacting with the jacket present in the cylinder block.

Finned Cylinder Liners

• Finned cylinder liners are constructed of the same type of heat and impurity
  -resistant metal. This type of liner is designed for the air-cooled engine, and in operation works much like the dry cylinder liner in that the cooling medium for the motor is air. However, these liners are fitted with tiny fins which allow the inflowing air to draw with great force around the cylinder to provide cooling.

ROTASYON CYLINDER LINER & PISTON . LTD. STI.

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What is cylinder liner ?

A cylinder liner is a device that is pressed into an engine block and houses the piston. It is much harder than the engine block and prevents the piston from wearing through the cylinder bore. Typically used in aluminum engine blocks and diesel engines, the cylinder liner is either pressed into position or held in place by the cylinder head. In large engines such as the engines found in diesel locomotives, the liner is part of an assembly containing a new piston, piston rings and a connecting rod and is changed as a complete unit during scheduled maintenance or repair.

In aluminum engine blocks, the block material is much too soft to house a piston. The friction of a piston moving up and down inside the alloy block would soon wear out, resulting in a loss of compression and severe oil consumption. The steel cylinder liner is pressed into the engine block and then the engine block is machined to assure that the cylinder head mating surface is smooth and flat. By machining the engine block to receive a steel liner, the engine is able to operate for many years without engine failure.

The flat surface resulting from the machining of the engine block assures a proper seal of the head gasket between the cylinder head and the engine block. An improperly sealed head gasket will result in over-heating of the engine, loss of power, and the potential to ruin the block and cylinder head. Great care must be taken when installing a cylinder liner into an aluminum engine block since the aluminum block will react to heat at a different rate than the steel cylinder liner. Improper fit at installation could result in a broken liner or a cracked engine block.

There are also instances when a cylinder liner can be used to repair a cast iron engine block that has suffered a catastrophic failure to a cylinder wall. Often, when an engine fails or "blows up," the cylinder wall takes the brunt of the trauma rendering it unrepairable by over-boring. In this instance, the block might be machined to receive a liner and then all of the cylinders could be over-bored to the same size, rendering the engine useful once again. For street driven vehicles, this is a viable option which typically offers the vehicle owner a significant savings over the cost of a replacement engine

there are a lot of Famous brand in this field, field of engine

manufacturer like Deutz and volvo and Scania and we can't forget Mercedes ....etc
.

Hello  ,

We are Rotasyon factory, one of the leader manufacturers in Turkey.

We produce high quality cylinder liners and pistons.

We also produce water cooled and air cooled cylinder liners.

Water cooled cylinder liners for: Mercedes-Benz , Volvo , Saab-Scania , Fiat-Iveco Man, Kamaz,

Zetor,Ursus, Leibherr, Caterpillar, Cummins, Komatsu,etc.

Air cooled cylinder liners for: Deutz, Hatz, Lombardini, Atlas, Copco, MWM, Lister, Eicher, R.Berliet,etc.

We export our products to a lot of countries in Middle east , and Europe

On the other hand we specialized in manufacturing piston and cylinder liner of Tractors like (Deutz , MWM , Güldner ,

Hanomag, Eicher , Zetor, Ursus, etc…) , And  piston ,cylinder liner for Generators and Heavy Machine

                                                         

And we can manufacturing special size or model of cylinder liner and piston (our customer like he want )

  

We have awarded quality certificate issued by Turkish standards institution and also our company has TS EN ISO 9001:2008 certificate.

For most of our parts, we get the certificate TS16949.

Our company deal with diesel parts (trucks – tractors - Electric generator ) more than 15 years.

Cover: Cummins, Perkins. Deutz, Mercedes-benz, Isuzu and Howo

www.rotasyon.com.tr