High Hardness Yanmar Engine Parts Engine Piston 4TNV98 1 Year Warranty

High Hardness Construction Machinery Parts Engine Piston 4TNV98 For Yanmar Engine

To address these problems, Volvo, of the UK's AE group, has developed a method of machining "bumps" into the top and bottom of the piston skirt, which increases the fatigue life of the skirt because the high side thrust at the top produces a lower bending moment than the original structure. This design can reduce the contact area by more than 75%, keep the contact area and the rigidity of the skirt unchanged over a wide range of loads and temperatures, reduce the pull cylinder tendency by improving lubrication, and increase fatigue life by reducing mechanical deformation. Bogo, based in Turin, Italy, further developed an "X" type skirt piston. That is, two guide belts are kept under each side of the thrust side of the skirt, which are connected with the piston pin seat and the piston top by the rib. The skirt area is reduced to 1/3 the size of a conventional piston, the weight is reduced by more than 20%, friction loss of the engine is significantly reduced, fuel consumption is reduced by 2%, and power output is increased.

Eight, anti-expansion piston

The different working temperature of piston and the different expansion characteristics of aluminum alloy piston and cast iron cylinder liner make it difficult to control the gap between piston skirt and cylinder liner. The most efficient skirt shape cannot overcome the differential expansion rate between piston and cylinder. In addition, the minimum clearance determined under the maximum load of the engine will also cause too large clearance under partial load, resulting in knock noise and increased engine fuel consumption. In order to control the cylinder piston skirt clearance, make it neither too small bite caused cylinder cylinder, and not too big to cause noise and vibration, the piston skirt and pin buried cast symmetry between a pair of steel sheet, and will be appropriately extended around the periphery of the skirt of the steel, together with the surrounding material of the steel bimetallic strip, heat expansion shrinkage along the axis of the piston pin in the vertical direction. This piston in the ring groove and the skirt of the itd does not open heat insulation groove, heat flow can be smoothly transferred to the skirt, so the first ring groove area of the temperature than the slotted piston, the strength is higher. Aluminum piston is widely used to control thermal expansion by means of steel strip or steel ring.

Product Description

Piston type & surface treatment

Alfin Reinforcement

Piston with alfin reinforcement are resistant to compression ring groove wear . the alfin reinforcement also act as a heat barrier minimizing heat conduction from piston skirt area. Such pistons can thus withstand the demand for higher load and highet performance engine .

Cooling Gallery

Created for operation in high temperature environment like turbo engines. Through oil circulation in the gallery, pistons are intensively cooled in the piston crown and ring belt area .

Anodized Crown

Anodization of piston crown creates a hard crown surface thus providing pistons with extra protection against crown piting and wear .

Tin Coating

Tin coated surface provides extra lubrication and smoother running of cylinder components resulting in longer engine lifetime .

Moly Skirt

Help produce less frictional heat and engine noise. The extra lubricative effect also minimize cylinder bore wear and prevent piston scuffing .

Phosphating

Reduce tge fructuib from with the cylinder liner . And to protect the piston from corrosion .

Nitriding

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

Our Advantages

1. Samples are welcome for production.

2. Enough types of stock

3. Quick and safe delivery ,Various of transportation way: Sea, Air, Bus, Express, etc

4. High quality with competitive price

5. We can develop new items for you especially

6. We have more than 10 years in construction machinery parts in Oversea market

7. Honesty and trustworthiness in business

8. Positive feedback from abroad and domestic market

9. Standard packing or according to your specification requests

10. Looking forward to deep cooperation with sincere partner and your satisfaction is our pleasure to maintain momentum going forward

FAQ

Q: Which shipping term you can supply?
A: By sea, air or by express ( DHL, Fedex, TNT, UPS, EMS)

Q: How long does it take to my address?
A: The Normal delivery time is 4-7 days, depending on which country you are in.

Q: How can I trace my order?
A: We will send you the tracking number by email.

Q: If I am not satisfied with the products, can I returns goods?
A: Yes, we offer exchange and repair service under warranty. Please contact us before you return.

Our Product Range