V6 engine: description, specifications, size, features

The Engine – the main power unit in the design of any car. Thanks ice machine is set in motion. Of course, the implementation of torque, there are plenty of other sites – transmission, axle, propeller shaft, rear axle. But it is the engine produces the torque, which subsequently, passing through all the nodes that will power the wheels. Today, there are different types of motor units. They are divided by type of power (diesel, petrol), and also according to the method of installation (transverse, longitudinal). There is another classification. It involves the way the cylinders themselves. Thus, there are inline engines and V-shaped. On the last (V-6) we will now discuss.

Characteristics

What is the V6 engine? This internal combustion engine, which has a design a six cylinder. However, they are not in a row, and facing each other. Usually they are at an angle of:

• 60 degrees.
• 90 degrees.

As for the row units, they have cells under the cylinders upright. The V6 engine is in second place in popularity after the inline four-cylinder engine. The first engine with this configuration appeared in the 50th year of the last century on the car "Lancia". Later was used on Ford cars.

The V6 Engine also was put and Germans. However, it was the model of business class. A vivid example - a “Opel omega” V6. The engine of this brand were of high resource and good performance. Not behind the fashion and the French.

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Design Features

Unlike ‘radnika”, the V6 engine is unbalanced. In fact, there were two three-cylinder motor. This design without modification could cause significant vibration. So the engine doesn't vibrate excessively, 2.5 V6 engine uses a so-called imbalance of the crankshaft. The latter is equipped with special counterweights. Some motors have the pulley and flywheel with imbalance. This allows you to balance the inertial force from the upper parts of the connecting rod and the piston of the first order.

There are more advanced modifications. So, the V6 engine 3.0 can be equipped with a balance shaft. It rotates with the same frequency as the crankshaft, but in reverse. This design allows to ensure high smoothness and stability of the power unit.

An Interesting feature: in V6 engine moment of inertia of the second order left free. This force is absorbed by the supports of the engine. Typically, this moment of inertia is less than half that of the first order.

Camber Angle

It is Worth noting that the above two angles are not essential for V-shaped six-cylinder engines. So, the design can be used in a corner:

• 120 degree.
• 75.
• 65 degree.
• 54 degrees.

VR-6

It is worth noting the six-cylinder units with a camber angle of 15 degrees. This motors VR-6. What is special about these units? These units do not have a balance, like the classic V6 engine. However, due to the small corner of the collapse of these motors are extremely compact, not only in width but also in length.

With regard to the working volume, these units can have from two to five liters. A smaller amount use impractical. The reason is the high cost of manufacture.

At the moment are six-cylinder units are used by the group «Volkswagen». By the way, first these motors, the Germans used on "Passat” and “Golf’. Subsequently, the six-cylinder unit was used for “Volkswagen Corrado” and “energy”. The aggregates had a working volume of 2.8-2.9-litres and develops capacity of 174 and 192 horsepower, respectively.

V6 today

Modern six-cylinder V-type engines have a crankshaft with six crank (offset connecting rod journals). They provide uniform spacing of the ignition of the fuel-air mixture. And the moment of inertia of the first order stabiliziruemost by the balancing shaft.

In sports cars often used a large, 120-degree camber. This motor is more broad in comparison with their counterparts. However, its main advantage is in low center of gravity. This has a positive effect on the manoeuvrability and drivability.

On the connecting rod and the neck is just one connecting rod. This configuration has a high moment of the first order. Therefore, the design must use a balancer shaft. Thanks to him, not only reduces vibration, but also ensures a high smoothness of the power unit.

Motors with 60-degree collapse

These units were placed on “the Volvo XC-90” the first generations. These motors did not require the use of balancer shafts, and is also characterized by a high compactness. One of the most popular lines of engines with this configuration – “Duratec”.

What the reviews say about the V6?

First, consider the advantages of using such motors. Reviews say that the engines with a similar layout is very compact. It allows without problems to get to any attachments and to perform maintenance.

I'm Sure many remember how it looked in-line six-cylinder engines on passenger front wheel drive “Volvo" - except for the engine, in the engine compartment was no more space. V-shaped layout provides more space without sacrificing power and torque. Also, these units have a low centre of gravity, which positively affects the handling. The block of cylinders on the V-way, the motor is very strong and durable, what can be said about Radnice.

Cons

The First disadvantage of these power plants – the complexity of manufacturing. Any V-obraznic will be more expensive to produce than inline equivalent. This affects the price of the machine itself. The difference between the value of the car with 4-cylinder engine and the V6 is simply enormous.

Also note that in the V-obratnykh uses a different design of details in the gas distribution mechanism. Because there are two heads. Accordingly, need different camshafts, different valve and seat belts. Inline motors have a simpler head (especially the first, where he used only one camshaft and two valves per cylinder).

According to the reviews, the V6 engine is difficult to repair. This affects the cost of the work performed, say the owners. For planned maintenance it is difficult to get elementary to the spark plugs. There are two valve cover that can “sweat” twice as often as on a normal Radnice.

Conclusion

So, we found the V6 engine. As you can see, this unit is not without drawbacks and is used only because the inline six-cylinder motor simply does not fit in the hood space of conventional cars. Also, this unit has a low center of gravity, but that's all the pros end.

So the engine doesn't vibrate, it is necessary to Refine the design, and it significantly reflected on the cost of the engine. The timing system is constructed in some other way, and for maintenance difficult to reach the spark plugs.

To Say that the V-twin engine better or worse inline, it is impossible. It has both pluses and minuses. But if the goal is to increase the volume of the car, by far the V-twin engine would be better, as it does not take much space under the hood.