Why large-sized special vehicles such as tank cars use diesel engines

To explain why these large vehicle vehicles use diesel engines instead of gasoline engines, we must first understand the difference between gasoline engines and diesel engines. It is clear where the advantages of the diesel engine as a power output.

We all know that diesel cars are noisier than petrol cars, especially when starting and accelerating. This is because of the difference in the ignition methods of diesel engines. Because diesel has a low ignition point, diesel engines use high-pressure injectors to inject diesel fuel directly into the cylinders of the engine. After the cylinders are atomized, the diesel engine reaches the deflagration point and self-ignites by compressing the gas in the cylinder. Deflagration sounds louder than normal ignition.

But the energy efficiency of diesel is higher than that of gasoline for a certain distance. The energy consumption is 45%-60% of gasoline engine, and the thermal efficiency is also higher than that of gasoline. The calorific value of diesel is relatively high, and the combustion of diesel of the same quality releases more energy than gasoline. That is to say, the same displacement of diesel vehicles will save about 30% of the oil than gasoline vehicles, and the fuel economy is one-third higher than that of gasoline engines. Using a diesel engine for large vehicles can save a lot of costs.

A diesel engine has a larger torque than a gasoline engine at low speeds, and the power will be more powerful. Especially when climbing a hill, a large vehicle used to drive several tons of weight is more suitable than a gasoline engine. Moreover, because the diesel engine eliminates the ignition process, there is no spark plug, and there is less chance of a single part missing a point of failure.  

But when it comes to diesel, it's not so convenient. Gasoline vehicles only need to be refueled according to the required label. Diesel vehicles need to fill the corresponding negative diesel oil when the temperature is too low in the winter, because diesel oil will freeze in the tank and cannot be started.

In general, the diesel engine has a relatively simple structure, low-speed torque, good fuel economy, and is suitable for large-scale automobiles.

Mini Excavator is mainly used in municipal Greenfield, flowerbed, Road.Etc.

There are many model are avaliable: UN15 Mini Excavator, UN18 Mini Excavator, UN20 Mini Excavator, UN25 Mini Excavator ,UN30 Mini Excavator.

Our mini excavator is a china famous brand Union, which researched and developed with world latest technical standard. it is a new kind of product characterized by high efficiency , safety, convenience, beauty. rubber track, with dozer blade. the machine can deflection to left and right to meet the different digging direction . hydraulic pilot servo handle controlling system ,easy to operation , campact size meet the small working space. 

The Dimension of Our Mini Excavator as follow:

Description 

Unit-Metric

Unit-US

Overall length

4080mm

160.6in

Overall width

1300mm

51.2in

Overall height

2280mm

89.8in

Cabin height

2280mm

89.8in

Track length on ground

1260mm

49.6in

Track gauge

1050mm

41.3in

Min.ground clearance

230mm

9.1in

Swing radius at tail

1260mm

49.6in

Max.digging height

3700mm

145.7in

Max.dumping height

2290mm

90.2in

Max.digging depth

2450mm

96.5in

Max.vertical digging depth

2280mm

89.8in

Max.digging radius

4370mm

172in

Min.swing radius

2015mm

79.3in

Max.lifting distance of dozer blade

240mm

9.4in

Max.cutting depth of dozer blade

310mm

12.2in

Boom swing angle(Left)

70°

 

Boom swing angle(Right)

50°

 

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Mini Excavator

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