4TNV98 Yanmar 4 Cylinder Diesel Engine 53.1kw For SWE70 Excavator Water Cooling
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4TNV98 Yanmar 4 Cylinder Diesel Engine 53.1kw For SWE70 Excavator Water Cooling
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Features
Basic Infomation
Place of Origin: Japan
Brand Name: Yanmar
Model Number: 4TNV98
High Light:

4TNV98 Yanmar 4 Cylinder Diesel Engine

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53.1kw Yanmar 4 Cylinder Diesel Engine

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SWE70 Yanmar Diesel Engine

Payment & Shipping Terms
Packaging Details: Neutral Package And Fumigaition Free
Delivery Time: 5 -8 work days
Payment Terms: D/P, T/T
Supply Ability: 10 pieces
Specifications
Product Name: Diesel Engine Assembly
Excavator Model: SWE70
Engine Model: 4TNV98
Condition: New
Family: G2YDXCL0332K4N
Engine Type: Diesel
Color: Same As Pictures
Material: Metal
Product Description

 

 

4TNV98 Diesel Engine Assembly For Excavator SWE70 Water Cooling

 

 

Specification

 

Car name: Complete Engine
Model Number: 4TNV98
Cylinder stroke: 110
Application: Excavator
Cylinder diameter: 98
valve: 16 valve
Cooling: Water cooling
Output: 53.1kw
Injection: Direction
Cylinders of number: 4

 

 

Description

Function of Engine parts

 

Plumbing

 

The cooling system has a lot of plumbing. We'll start at the pump and work our way through thesystem. The pump sends the fluid into the engine block, where it makes its way through passages in the engine around the cylinders. Then it returns through the cylinder head of the engine. The thermostat is located where the fluid leaves the engine.

 

The plumbing around the thermostat sends the fluid back to the pump directly if the thermostat is closed. If it is open, the fluid goes through the radiator first and then back to the pump. There is also a separate circuit for the heating system. This circuit takes fluid from the cylinder head and passes it through a heater core and then back to the pump.

 

Fluid

 

Cars operate in a wide variety of temperatures, from well below freezing to well over 100 F (38 C).So whatever fluid is used to cool the engine has to have a very low freezing point, a high boiling point, and it has to have the capacity to hold a lot of heat. Water is one of the most effective fluids for holding heat, but water freezes at too high a temperature to be used in car engines. 

 

The fluid that most cars use is a mixture of water and ethylene glycol (C2H6O2), also known as antifreeze. By adding ethylene glycol to water, the boiling and freezing points are improved significantly. The temperature of the coolant can sometimes reach 250 to 275 F (121 to 135 C).

Even with ethylene glycol added, these temperatures would boil the coolant, so something additional must be done to raise its boiling point.

The cooling system uses pressure to further raise the boiling point of the coolant.

 

Just as the boiling temperature of water is higher in a pressure cooker, the boiling temperature of coolant is higher if you pressurize the system. Most cars have a pressure limit of 14 to 15 pounds per square inch (psi), which raises the boiling point another 45 F (25 C) so the coolant can withstand the high temperatures.

 

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