July 30 2023

Getting to know engines of each design (Part 1) will allow you to understand cars in seconds and make it easier to buy a car.

One: built-in motor

Integrated motor

The cylinders and pistons of this engine are arranged side by side in a straight line, only one cylinder head is used, and design of cylinder block and crankshaft is relatively simple. It is one of engines classified by cylinder arrangement. Principle 1 inline engineuses one cylinder head, lower production cost, high stability, good torque performance at low speeds, lower fuel consumption, compact size and wider application. "Inline" can be represented by letter L followed by number of cylinders, this is engine code, modern cars mostly have L3, L4, L5, L6 engines.

Advantages and disadvantages of 2 in-line enginesAdvantages: Its cylinder block and crankshaft are simple in structure and use one cylinder head, lower production cost, high stability, good torque performance at low rpm, lower fuel consumption . , compact size, it is widely used. Disadvantages: low success rate. With an increase in working volume and number of cylinders, length of engine increases significantly.

Second: V-engine

Image of a V-engine

A V-type engine divides all cylinders into two groups and connects adjacent cylinders at a certain angle, so that two groups of cylinders form an inclined plane, and cylinders are V-shaped when viewed from side, so they are called V-engines . It contributes to increase in displacement and power by increasing cylinder diameter and is suitable for more cylinders.

1, V-engine principle,

All cylinders are divided into two groups, and adjacent cylinders are arranged together at a certain angle, so that two groups of cylinders form two planes with an angle, and cylinder is V-shaped when viewed from side, so it is called a V-engine. If length of engine is shortened, more space can be left in cab, which will increase comfort. The division of cylinders into two rows, and then "oblique" made it possible to reduce height and length of engine in accordance with requirements of body structure. Since cylinders are staggered relative to each other, there is a large space between cylinders, which helps to increase displacement and power by increasing diameter of cylinder. All cylinders in a V-engine are at an angle to each other, which can also compensate for some of vibration.

2, advantages and disadvantages of V-engine

Advantage · The height and length are small, and it is more convenient to place on car. A lower height can reduce height of engine cover and reduce wind resistance. The shorter length gives more cabin space. The cylinders are staggered relative to each other, which contributes to an increase in displacement and power due to increased diameter of cylinders and is suitable for more cylinders.

Third: W-type engine

W type motor

1, W-type engine, W-type engine is German Volkswagen exclusive engine technology. By shifting cylinders on each side of a V-type engine by a small angle, it becomes a W-type engine. In other words, cylinder arrangement of a W-type engine is V-shaped, with two small V-shapes. Table of Contents 1 W-Motor Working Principle 2 W-Motor Advantages and Disadvantages 3 What are W-Motor Models? speaking, it must also belong to a V-engine, at least a variant of V-engine.

2. Advantages and disadvantages of W-type engine The advantage is that engine and crankshaft are shorter and structure is compact, which is suitable for use in large displacement vehicles. The disadvantage is complexity of design, as well as high production and maintenance costs. What are models of 3W engines Currently, number of cylinders in which W-type engines were used: W8, W12, W16 and even W18. The W8 engine was only used in Passat W8 with a displacement of 4 liters and a maximum output of 270 horsepower / 6000 rpm, equipped with Volkswagen's 4MOTION all-wheel drive system and a standard six-speed gearbox. Vehicles with Volkswagen W12 engine include flagship Volkswagen Phaeton, Bentley and flagship production model Audi A86.0. In addition, concept sports car Volkswagen W12 is equipped with this engine. The W12 engine has a displacement of 6 liters and a maximum power of 420 horsepower at 6000 rpm. W16 engine The Bugatti EB16-4Veyron concept car unveiled by Volkswagen at North American Auto Show is powered by a W16 cylinder engine with a displacement of 8 liters, a piston stroke and a bore of 86 mm, 64 valves and a maximum output of 1001 hp. /6000 rpm