202008-20

The difference between inline and horizontally opposed 4-cylinder engines

It may be the most widely used engine with stable operation, low cost, simple structure, compact size, etc.

202008-13

Causes and measurement of crankshaft wear

The worn parts of the crankshaft are mainly the main journal and connecting rod shaft whiskers.

202008-11

Specially designed engines and fuels can reduce air emissions and water consumption

According to reports, research led by personnel from the U.S. Department of Energy's Argonne National Laboratory shows that in the next 30 years...

202008-04

The cylinder head inspection method is as follows

Check with coloring penetrant: immerse the cylinder head in a kerosene or kerosene coloring solution (mass fraction of 65% kerosene...

202007-30

The-development-trend-of-piston-ring-materials

SO6621-3 divides the piston ring materials into six series: gray cast iron, heat-treated gray cast iron, carbide cast iron, malleable cast iron, ductile cast iron, and steel.

202007-27

Crankshaft ion nitriding heat treatment

The crankshaft is the main rotating part of the engine and the most important part of the engine.

202007-20

Engine cylinder head material

The cylinder head is generally made of gray cast iron or alloy cast iron, but in order to improve the fuel economy of the vehicle, the weight of the engine is imminent, and the use of light materials can effectively reduce the quality of the engine.

202007-13

Typical wear of marine engine "cylinder liner-piston ring"

Based on the analysis of the basic causes of wear, the "cylinder liner-piston ring" part of the marine engine includes the following four typical wear forms:

202007-07

Fillet quenching technology of crankshaft

The crankshaft is one of the most important parts in the internal combustion engine, and its service life often determines the service life of the internal combustion engine.

202006-17

About the material of the crankshaft blank

There are two main types of crankshaft materials, one is a steel crankshaft and the other is a ductile iron crankshaft.

202006-10

Reasons for the tightness of the engine cylinder head seal Part 2

The quality of the cylinder head sealing performance has a great influence on the technical status of the engine. When the cylinder head is not tightly sealed, the cylinder will leak air, resulting in insufficient compression pressure of the cylinder, lower temperature and lower air quality.

202006-08

Reasons for the tightness of the engine cylinder head seal Part 1

The quality of the cylinder head sealing performance has a great influence on the technical status of the engine. When the cylinder head is not tightly sealed, the cylinder will leak air, resulting in insufficient compression pressure of the cylinder, lower temperature and lower air quality.

202005-21

The main reason for piston ring fracture

1.The reason for the piston ring 2.Piston reasons...

202005-13

Crank connecting rod mechanism group

The crank connecting rod mechanism is composed of three parts: a body group, a piston connecting rod group and a crankshaft flywheel group.

202005-11

Main reasons for early wear of piston rings

The structure of the piston ring material does not meet the technical requirements, and the organization is loose.

202005-06

Common problems in cylinder head processing

Due to the large amount of gas generated in the casting cavity during casting of the casting blank, casting defects caused by poor exhaust of the casting casting system.

202004-28

Installation of piston ring and piston connecting rod assembly

The qualified piston ring can be installed on the piston after inspection.

202004-26

Finishing of crankshaft hole

The traditional method of machining crankshaft holes is to use a combined boring tool on a special processing machine.

202004-22

Engine cylinder block processing and its process

As a high-tech component of automobiles, the processing of engine blocks gradually penetrates into major enterprises.

202004-16

Assembly of connecting rod bearing

The connecting rod assembly is composed of connecting rod body, connecting rod cover, connecting rod bolt and connecting rod bearing.

202003-30

Main bearing of crankshaft

The main bearing of the crankshaft is commonly called a large bearing. Like the connecting rod bearing, it is also a sliding bearing divided into two halves, namely the main bearing (upper and lower bearings).

202003-25

Aluminum coating of piston rings

The outer surface of the piston ring is often coated to improve the performance characteristics of the ring, such as by changing the frictional or abrasion characteristics of the surface.

202003-23

Impregnated ceramic treatment of piston rings

Piston ring is one of the core parts of the engine. The material of the piston ring should have suitable strength, hardness, elasticity and fatigue resistance, excellent wear resistance, heat resistance and corrosion resistance.

202003-17

Features of V-type six-cylinder engine

V6 engines, as the name suggests, are two sets of cylinders (three on each side) arranged in a "V" shape at a certain angle.

202003-09

Inline six-cylinder engine

The L6 engine has 6 cylinders arranged in a straight line, so it only needs a cylinder head and a set of double overhead camshafts.