News - WELLFAR

2026-02-28 02:00 2026-02-28 02:00

Why Heavy Duty Diesel Engine Has Piston Sleeve

Most of the recent diesel engines, piston pin sleeves (bushings) are used mainly to improve durability, lubrication, and service life under very high loads.

2026-02-25 01:45 2026-02-25 01:45

Liner Scuffing And Seizure

Diesel engine cylinder liners play a critical role in sealing combustion pressure, guiding piston motion, and transferring heat to the cooling system.

2026-02-10 01:25 2026-02-10 01:25

Disel Engine Piston Ring Failure Mode Analysis

Ring breakage / cracking mainly affects the top ring and is driven by excessive thermo-mechanical loading.

2026-02-06 00:26 2026-02-06 00:26

Fatigue Failure In A Camshaft Normally Starts At Stress Concentrations Such As Fillets

Fatigue failure in a camshaft normally starts at stress concentrations such as fillets, oil holes, keyways, or notches, and is caused by repeated bending and torsional loads during engine operation.

2026-01-26 04:10 2026-01-26 04:10

New Technology On Diesel Engine

Recent new technology in diesel engine mostly focused on improving fuel efficiency, reducing emissions, and enhancing performance, in response to environmental regulations and market demands.

2026-01-22 01:27 2026-01-22 01:27

Piston Ring Fracture - Material Washout In The Piston Ring Zone

Description of the damage

2026-01-16 02:02 2026-01-16 02:02

Piston Fracture Due To The Mechanical Contact

Piston fracture from mechanical contact with the cylinder head is typically caused by impact from events like hydraulic locking, a foreign object in the combustion chamber.

2026-01-14 01:47 2026-01-14 01:47

Piston Boss Fatigue Fractures

Boss fatigue fractures arise as a consequence of mechanical overstressing.

2025-12-30 00:21 2025-12-30 00:21

Head Gasket

Head gaskets are an essential part of internal combustion engines.

2025-12-27 03:03 2025-12-27 03:03

Erosion Wear

Erosion wear occurs when particles impacting a surface remove tiny bits of material from the surface.

2025-12-23 01:59 2025-12-23 01:59

Cavitation Erosion Wear

Cavitation erosion wear is pitting damage that results when bubbles collapse and the fluid stream that had been supported by the bubble impacts the part surface.

2025-12-18 01:26 2025-12-18 01:26

How To Choose O Rings

O-ring quality is defined by mechanical properties like hardness, compression set, and abrasion resistance.

2025-07-16 03:29 2025-07-16 03:29

Wellfar Joins INA PAACE Automechanika Mexico 2025

2025-06-06 10:05 2025-06-06 10:05

Piston Ring Design Consideration

When designing a piston ring, consideration must be given to factors such as the application and sealing requirements, running characteristics and the expansion of materials.

2025-05-28 10:55 2025-05-28 10:55

Piston Ring Dynamic Loading And Wear (Service Life)

Piston ring dynamic loading occurs in addition an axial motion of the piston ring caused by the interactions of gas, mass, and friction forces.

2025-05-26 10:30 2025-05-26 10:30

Piston Ring Breakage Root Causes

Piston ring breakage is a serious failure in an engine, often leading to costly repairs, which can stem from several factors, including excessive heat, improper combustion

2025-05-22 10:25 2025-05-22 10:25

Piston Liner Scratches

Piston / liner scratches caused by foreign particles, like dirt, debris or metal shavings, occur when abrasive foreign bodies in the engine oil.

2025-05-09 14:30 2025-05-09 14:30

Piston Ring Scratches And Breaks

Piston ring scratches and edge breaks is rare to see especially after very short run, some of the scratch or breaks can feel with a fingernail, or only can be seen from magnifier

2025-04-30 10:50 2025-04-30 10:50

Early Stage Liner Scratch

Scratches on liner is a very common failure type, which can lead to severe issues, such as increased oil consumption, loss of compression, and accelerated wear on the piston rings.

2025-04-16 22:38 2025-04-16 22:38

Automec São Paulo 2025: A Fusion of Tradition and Innovation

É com grande entusiasmo que partilhamos os principais momentos da nossa participação na Automec São Paulo 2024, realizada de 22 a 26 de abril