Cylinder Liner Assembly, Piston, High quality WD615.47 Four Sets

Description

Introduction to the WD615.47 Four Sets：

The four-component set of the Sinotruk WD 615 engine refers to the piston, piston rings, cylinder liner and piston pin. These are crucial components in the operation of the engine. Here is the detailed introduction:

Piston: It is a component in the engine that withstands the pressure of the gas and transmits it to the connecting rod. It moves back and forth in a straight line within the cylinder. It operates under conditions of high temperature, high pressure, high speed, and poor lubrication, and requires excellent wear resistance, heat conductivity, and strength.

Piston rings: Installed in the ring grooves of the piston, they can be divided into gas rings and oil rings. The function of the gas rings is to seal the cylinder and prevent the gas from leaking into the crankcase, while also conducting the heat from the piston top to the cylinder liner. The oil rings are used to remove the excess oil from the cylinder wall, preventing the oil from entering the combustion chamber and causing oil consumption and carbon deposits.

Cylinder liner: It is the inner lining of the cylinder, together with the piston and piston rings, forming the combustion space. The cylinder liner needs to have good wear resistance, heat resistance and sealing performance to ensure the normal operation of the engine. According to different structures, it can be divided into dry cylinder liner and wet cylinder liner.

Piston pin: It is used to connect the piston and the connecting rod, transferring the force exerted by the piston to the connecting rod, converting the reciprocating motion of the piston into the oscillation of the connecting rod, and thereby driving the crankshaft to rotate. Piston pins are usually made of high-quality alloy steel and undergo heat treatment to enhance their strength and wear resistance.

The performance and quality of the four sets directly affect the power, economy and reliability of the engine. If there are any wear, damage or other issues, it will lead to problems such as decreased engine power, increased fuel consumption, and difficulty in starting. Therefore, timely inspection and replacement are necessary.

The normal service life range for the WD615.47 Four Sets:

Under ideal operating conditions and proper maintenance, the typical service life of the WD615.47 Four Sets for the Sinotruk 615 engine is as follows:
1， Pistons / Piston pins: Approximately 300,000 – 500,000 kilometers or 5,000 – 8,000 hours (for heavy-duty trucks, with an annual mileage of 200,000 kilometers, it can be used for 1.5 – 2.5 years).Shorten with AI

2，Piston rings: The lifespan is slightly shorter than that of the pistons, approximately 250,000 – 400,000 kilometers, as they are in direct contact with high-temperature gas and the cylinder wall, resulting in faster wear.Shorten with AI

3，Cylinder liners: They have good wear resistance and under normal circumstances can last up to 400,000 – 600,000 kilometers or 8,000 – 10,000 hours. However, wet cylinder liners may have a shorter lifespan due to corrosion from coolant.Shorten with AI

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