48mm Yanmar Excavator Parts 4TNV94 129086-25060F Hydraulic Piston Cast Iron

Yanmar Excavator Parts 4TNV94 129086-25060F Φ 48mm Pisons Hydraulic Excavator Parts Piston Engine

Detailed Product Description

Yanmar Engine Parts Diesel Fuel Pump For Yanmar Piston Engine

Diesel Fuel Pump For Yanmar Piston Engine For Sale

Piston type and surface treatment : Alfin Reinforcement

Created for operation in high temperature environment like turbo engines.

Moly Skirt : Help produce less frictional heat and engine noise.

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Nitriding: The nitriding products have excellent wear resistance, fatigue resistance, corrosion resistance and high temperature resistance .

In order to reduce the intense heating of the first ring groove by the gas, the piston of the diesel engine is usually equipped with a spiral shallow groove around the fire bank to reduce the gas channeling along the gap between the piston and the cylinder liner by using the labyrinth step-down principle.

Top of piston

The thickness of the piston generally tends to decrease. It is mainly restricted by the two contradictory factors of the combustion pressure and the reduction of the temperature gradient. The thickness is too thin, the ability to bear mechanical load is poor, will cause mechanical deformation; If the thickness is too thick, the temperature gradient is too large, causing too much thermal stress and thermal deformation. Therefore, the piston head thickness varies with the maximum combustion pressure of the engine, the cylinder diameter, whether there is oil cooling, and thecombustion chamber form

Powertrain, complete set of engine. Engine parts: cylinder head, cylinder block, cylinder liner, piston set, oil pump, water pump, fuel injection pump, fuel injector assembly, crankshaft bush, connecting rod bush, eccentric bearing bush, eccentric shaft assembly, valve, seat ring, valve lock Plates, valve caps, crankshaft front and rear oil seal retaining rings, etc. Hydraulic pump assembly, travel motor, swing motor, gearbox, piston shoe. Cylinder, valve plate and joints.