202103-09

Possible reasons for abnormal noise of timing gear

The gear combination clearance is too large or too small

202103-04

Shot peening of crankshaft

As one of the key parts of the engine, the crankshaft bears the combined action of alternating bending and alternating torsional loads during the movement.

202103-01

Common angle of cylinder

In automotive internal combustion engines, we mentioned that the "cylinder included angle" is often a V-type engine. Among V-type engines, the common angle is 60 degrees and 90 degrees.

202102-25

How the car turbine works

The turbocharger is a forced guidance system.

202102-23

Tesla's Berlin factory may turn the local area into a battery manufacturing center

According to foreign media reports, Tesla CEO Elon Musk shocked the auto industry giants when he chose a small town in eastern Germany to build Tesla's first European factory.

202102-20

Crankshaft Fillet Rolling Machine

Regarding the HEGENSCHEIDT MFD7895 crankshaft rolling machine, its control system uses Siemens PLC S7-300.

202102-19

Application of crankshaft belt polishing machine

The GRINDMASTER crankshaft abrasive belt polishing machine is used to polish the oil seal neck, main journal, and connecting rod neck of the crankshaft.

202102-03

2021 Spring Festival holiday notice

Happy Chinese New Year everyone~

202102-01

The development trend of piston ring technology

The driving force for the development of piston ring technology comes from two aspects:

202101-27

Wide application of crankshaft CNC horizontal lathe

DANOBAT NA750 crankshaft thrust surface finishing lathe is equipped with an automatic detection device.

202101-25

BMW plans to streamline product portfolio and increase profit margins

According to reports, BMW Chief Financial Officer Nicolas Peter said that as the global economy recovers, BMW hopes to restore operating margins to pre-epidemic levels, but the large investment in electric vehicles means that the company will have to simplify its model portfolio .

202101-20

Causes of Piston Partial Cylinder Failure

The main reasons for piston bias are as follows

202101-18

What is the crankcase? Introduction to the crankcase

The lower part of the cylinder block where the crankshaft is installed is called the crankcase.

202101-13

Three layout features of the engine

The engine can be said to be the most important part of a car, and its layout has a major impact on the performance of the car.

202101-11

Chip shortage, Toyota, Ford and other auto companies have cut production

On January 8, Ford, Toyota, Fiat Chrysler Automobiles and Nissan Motors all stated that due to insufficient supply of semiconductor components, they will reduce vehicle production this month. In addition, Honda Motor also said that its car production in Japan will also be affected by semiconductor shortages.

202101-06

what is the difference between a large piston short stroke engine and a small piston large stroke engine?

For cylinders of the same displacement, what is the difference between a large piston short stroke engine and a small piston large stroke engine? This is a very important issue in the engine design stage, which is the ratio of the piston stroke to the piston diameter, also called the stroke-diameter ratio.

202101-04

Features of wet cylinder liner

The characteristic of the wet cylinder liner is that its outer surface is in direct contact with the coolant. In addition, it is thicker than the dry cylinder liner.

202012-30

Features of dry cylinder liners

The characteristic of the dry cylinder liner is that the outer surface of the cylinder liner does not contact the coolant.

202012-28

Closing a factory, Honda cuts India's automotive production capacity by 40%

According to foreign media reports, Honda Motor will cut India's four-wheel vehicle production by 40% and close a manufacturing plant.

202012-23

Disadvantages of turbochargers

Turbocharging Turbocharging can indeed increase the power of the engine, but it has many shortcomings, the most obvious of which is the lag in power output response. Let’s take a look at the working principle of turbocharging.

202012-21

The sealing mechanism of the gas ring

The piston ring has a notch and is not a circular ring in the free state. Its outer dimension is larger than the inner diameter of the cylinder. Therefore, after it is installed in the cylinder together with the piston, it generates elastic force and clings to the cylinder wall.

202012-18

V8 engine-difference in crankshaft

There are two different types of V8 engines depending on the crankshaft.

202012-14

Crankshaft wear reduction measures

When assembling the crankshaft of a diesel engine, every step must be precise. Before installing the crankshaft, clean the crankshaft and clean the crankshaft oil passage with high-pressure air.

202012-10

How will the powertrain advance through the comprehensive transformation of the automotive industry?

It is understood that with the continuous improvement of automobile energy-saving technology, the current average fuel consumption of new passenger cars in China continues to decline, and it is close to the target value of 5L per 100 kilometers in 2020. At present, a large number of high compression ratios (12-13) + Miller cycle have been applied.

202012-08

Dual Variable Valve Timing

D-VVT engine is the continuation and development of VVT, it solves the technical problems that VVT engine cannot overcome.