22 HP Briggs and Stratton V-Twin Engine: How It Works and What Makes it Stand Out

Introduction: What is a V-Twin Engine?

A V-twin engine is a two cylinder engine, where one cylinder’s pistons occupy the same point in space as the other. V-twin engines are a common engine configuration for two-stroke engines. This engine layout is typically favoured by smaller, lighter weight motorcycle and scooter designs that need more power than a single cylinder engine can provide.
The primary advantage of the V-twin engine is its excellent balance of smoothness, power, and light weight. Larger V-twin engines can produce more power than a four-stroke equivalent.
A common way to visualize this is to imagine a bicycle. If you were to attach two cranks with the same axis on it and aligned in the same plane, you would have a Rokon engine (http://en.wikipedia.org/wiki/Rokon_four-stroke_motorcycle) which is a two stroke configuration. Another way to visualize this is to imagine putting two inline four cylinder engines on top of each other. This would be a four-stroke equivalent.

22 hp briggs and stratton v-twin engine
22 hp briggs and stratton v-twin engine

How Does a V-Twin Engine Work?

In the V-twin configuration, the crankshaft is shorter than it would be for a single cylinder engine. The cylinders are arranged in a line, with one piston in each cylinder. The pistons are circular, and the entire crankshaft turns about an engine centerline. The crankshaft is offset from the centerline, with the connecting rods on alternating banks of cylinders. This design keeps the forces in each connecting rod nearly equal, avoiding the problem of preloaded connecting rods which can fail when subjected to unequal amounts of force.
Because the power strokes are offset from each other, it is necessary to stop the crankshaft and rotate it 180 degrees before firing the next pair of cylinders. In single-cylinder engines, this is accomplished by using pistons with different diameters. In a V-twin engine, only one piston diameter is used, so different sized rings and pinions are used to bring the engine to a halt and restart it in the correct position for firing.

22 hp briggs and stratton v-twin engine
22 hp briggs and stratton v-twin engine

What are the Advantages of a V-twin Engine over Other Engines?

A V-twin is approximately 30% narrower than a similarly sized in-line 4 cylinder engine, which reduces their overall width which allows for better clearance around frame members, while they also have better weight distribution when mounted to the frame. The reduced width makes packaging possible in places where an in-line 4 would not fit.
A V-twin has far more ground clearance which improves its performance in off-road and dirt conditions, particularly when compared to a four cylinder. The increased ground clearance reduces the possibility of block cracking. This can happen because the rear cylinder’s cylinder head is located far farther from the center line of the engine. The distance is the same as the distance between the front and rear cylinder heads on most in-line 4 engines. The longer head bolts of an in-line 4 cylinder engine draw more heat away from the block, which can cause cracking under extreme torque or high temperature conditions.

22 hp briggs and stratton v-twin engine
22 hp briggs and stratton v-twin engine

Disadvantages of a V-twin Engine?

A V-twin is more complicated than an inline 4 or inline 6, by virtue of the additional cylinders. This could be considered an advantage in a motorcycle design, because a simpler, more reliable engine should be easier to manufacture with less chance of failure. In addition, using two separate cylinder banks for power distribution allows for better control over engine smoothness, giving a motorcycle with a V-twin more road feel and better handling characteristics. A V-twin isn’t more expensive than the other options, but it does have a more complicated construction which does add to manufacturing costs.
The disadvantages of a V-twin engine comes from the fact that, like in an inline four or inline six engine, each pair of cylinders will share two crankshafts with each other. In a four-stroke, the counter-rotating shafts are used to cancel out the opposing torque and power generated by each pair of cylinders. However, in an inline six engine, only three crankshafts are used for this purpose (two for each cylinder bank). In a V-twin, there is no other option but to use two crankshafts for each pair of cylinders. As a result, the engine is heavier and more difficult to balance than an inline four or six.

22 hp briggs and stratton v-twin engine
22 hp briggs and stratton v-twin engine

Differential vs. Limited Slip Differential: How do they Differ and Why is One Better than the Other?

Where a differential is used, one side of the assembly drives a wheel; in low range and high gear, the other side drives. The problem is that during very low gear, where the motor needs to spin at about 2-3,000 RPMs to drive the wheels, it has too much power and will quickly overheat. A limited slip differential keeps one side of the assembly from spinning too quickly when there are low engine speeds. This allows for better traction in low gears, using both sides of the differential assembly to deliver power to the wheels. The internal clutch mechanism is a simple design that has relatively few moving parts, and it’s proven reliable enough to be standard in many applications. Also, it’s useful to note that the term “limiting” was chosen deliberately. It is NOT the same as a “forced” low gear that cannot be changed from higher to lower. The limited slip does not have a specific gear range or certain speed at which it kicks in. Instead, it varies its torque output according to the internal tuned-constant of the operating band. It can be used (and should be clear how) in any gear ratio, but can only engage when one end is turning faster than the other end. It can also be used to reduce wear and tear on the differential .”
A limited slip differential is a type of differential used in vehicles to provide increased traction and more efficient turning. The limited slip differential allows one side of the drivetrain to spin faster than the other side, resulting in better acceleration and more efficient use of fuel. By helping one side spin faster than the other, it also reduces wear on the tire. When a vehicle turns, only one wheel turns at a time. The wheel acts as the “brake” on the other wheel, preventing it from spinning at the same speed as the wheel that is being braked. In order to make more efficient use of a vehicle’s power, some types of limited slip differentials allow for one side to spin faster than another side. These are called “limited slip differentials”.
There are three types of limited slip differentials:

22 hp briggs and stratton v-twin engine
22 hp briggs and stratton v-twin engine