What is Watt Governor? What are the types of Watt Governor?

The automotive industry is now on a role in technology and manufacturing. In this article, I will discuss What is Watt Governor in Automobile engines.

What is watt governor

What is Watt Governor

It is the primitive governor used by Watt on some of his early steam engines. It is used for a very slow-speed engine and this is why it has now become obsolete.
The Watt Governor is named after its inventor James Watt. He is the scientist, who delivers some key components to the automotive industry. 
Its primary purpose is to regulate the speed of engines and generators. This system ensures the stable and safe engine operation. The watt governors control the flow of fuel. This control helps to maintain a constant speed and efficiency for the engine.
The components of a Watt Governor typically include a rotating spool valve, a linkage mechanism, and a regulating device. These are the main components used in the system to ensure the better combustion of air-fuel by supplying the correct amount of fuel into the cylinder.

What is Watt Governor’s Working Principle

Watt governor diagram.


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What are the Different Types of Resistance on Vehicles?

When a vehicle starts to move a lot of resistance comes to stop the vehicle. In this article, I will discuss the different types of resistance in vehicles

Different Types of Resistance on Vehicles

Different Types of Resistance on Vehicles

At various engine speeds and gear settings, the tractive effort—or thrust—the engine delivers at the driving wheels changes. A lot of forces together referred to as resistance started to stop moving objects. The total effort necessary to keep the vehicle moving is equal to the sum of all opposing forces. If the tractive effort is excessive compared to the total of all the resistances, the vehicle will accelerate, but if it is insufficient compared to the total of all the resistances, the vehicle will decelerate. The following are the principal forces that work against the vehicle’s motion – 
  1. Rolling resistance.
  2. Wind or air resistance.
  3. Gradient resistance.

These are three types of resistance that pull back the vehicle. Each of these resistances is discussed below.


1. Rolling Resistance

Rolling Resistance


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How Does a Distributor-Based Ignition System Work?

The distributor-based ignition system is a mechanical ignition system where the engine’s moving parts help to get the ignition done. In this article, I will discuss what a Distributor-Based Ignition System?

Distributor-Based Ignition System

Distributor-Based Ignition System

The distributor is used in the automobile system to provide the current to the spark plug, to ignite the fuel and air mixture. The distributor system is used in the SI engine because, in the CI engine, there is no need for the spark plug to ignite the fuel. 
In the earlier days, there was the electromagnetic system, to provide the current to the ignition coil.
In this system, the camshaft is the reason to drive this system. The distributor-type ignition system also relies on the firing order of the engine. Later in this article, I will discuss the firing order.

How Does a Distributor Type Ignition System Work

When the engine rotates it also turns the camshaft with it. The engine crankshaft and the camshaft are connected through a belt or chain. As the camshaft rotates, the lobes of the camshaft rotate the distributor shaft. 
The drive shaft is rotated at half the engine speed in four-stroke engines. When the shaft moves, it opens and closes the breaker points. The breaker cam contains the same number of lobes as the number of cylinders in the engine. 
A rotor is mounted on the breaker cam which is carried by the drive shaft. The rotor connects the central terminal of the cap with each outside terminal in turn, so that high voltage surges from the coil are directed first to one spark plug and then to another, according to the firing order. 

Components of Distributor 

Components of Distributor


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What is Contact Breaker?

What is contact breaker is discussed in this article. The working principle and the types are also discussed.  What is Contact Breaker The contact breaker is the mechanism to makes and breaks the primary circuit of the ignition system for obtaining high voltage current in the secondary circuit. It consists …

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What is Detonation in an Engine?

Detonation in an engine means the rise of sudden pressure in an internal combustion engine, which affects the engine components. In this article, I will discuss the meaning of Detonation in an Engine, the factors affecting detonation, etc.

Detonation in an Engine

Detonation in an Engine

At present the amount of power that can be developed in the cylinder of a petrol engine is fixed by the liability of a fuel to detonate, i.e., just before the flame has completed its course across the combustion chamber and the remaining unburnt charge fires throughout its mass spontaneously without external assistance.
The extreme pressure causes damage to the cylinder wall and the piston wall, also the excess pressure causes damage in the combustion chamber, which is called “ping”. It is the ping that manifests detonation. Thus, a sudden rise of pressure during combustion ac­ companied by a metallic hammer-like sound is called detonation.
The area in which knocking or the detonation occurs is farthest removed from the sparking plug, and is named the •detonation zone” and even with severe detonation, this zone is rarely more than one-quarter the clearance volume.

Process of Detonation in an Engine

Combustion with knocking


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Different Types of Ignition Coils and Their Functions.

Different types of ignition coils are used in automobile vehicles. In this article, I will discuss the types of ignition coils and their functions in a car.


Types of Ignition Coils

Types of Ignition Coils

The ignition coil is simply a transformer to step up the voltage in the ignition system. It consists of a soft iron core, primary winding, and secondary winding. The primary windings consist of 200-300 turns of thick wire and the secondary winding of 15,000-20,000 turns of fine wire. The core is formed by the lamination of soft iron. 

The ignition coil has two types-


  1. Core Type Ignition Coil.
  1. Can Type Ignition Coil. 
The types of ignition coils are discussed below. First, we need to discuss what is an ignition coil?


What is an Ignition Coil

The battery is used in the vehicle to supply the electric current to the various components. But, the spark needs a higher voltage to throw the electrons out of the spark plug head. As we know, the higher voltage means the higher ratio of electrons present in the system. 
The ignition coil is there to increase the voltage by stepping up it. Imagine the transformer used in your locality. It distributes and steps up the voltage we need like the ignition coil does the same. 
The battery supplies a 12-volt DC current, which is not sufficient to spark the fresh charge, this current then goes to the primary windings. These windings are attached to the iron core inside, which generates a magnetic field whenever it passes the current in it. 
Then this magnetic field generated current goes to the secondary windings which have more windings than the primary windings. Here, the current steps up to around 15,000 volts, perfect for a spark on a fresh charge. Then this current flows through the high-tension cable to the spark plug to ignite the air-fuel mixture. 
Now talk about the types of ignition coils and their functions-

Core Type Ignition Coil

Core Type Ignition Coil


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Ignition System | Ignition System of the Spark Ignition Engine.

The ignition system of the spark ignition engine is conducted by the spark plug at the end of the compression stroke. In this article, I will discuss the Ignition System and its types with a diagram. 

Ignition system

Ignition System

The spark ignition engines require some device to ignite the compressed air-fuel mixture inside the cylinder at the end of the compression stroke. The ignition system serves this purpose. It is a part of the electrical system that carries the electrical current to the spark plug which gives a spark to ignite the air-fuel mixture at the correct time. 
This ignition system consists of a battery, switch, distributor, coil, spark plugs, and necessary wiring. Some system uses transistors to reduce the load on the distributor contact points. Other systems use a combination of transistors and a magnetic pick-up in the distributor.
Compression ignition engines do not have such ignition systems. In a compression ignition engine, only air is compressed in the cylinder, and at the end of the compression stroke, the fuel is injected which catches fire due to the high temperature and pressure of the compressed air. 

Requirements of an Ignition System

The ignition system supplies high-voltage surges of current to the spark plug. These surges produce electrical sparks at the spark plug gap that ignite or set fire to the compressed air fuel in the combustion chamber. The sparking must take place at the correct time at the end of the compression stroke in every cycle of operation.
At high speed or during part throttle operation, the spark is advanced so that it occurs somewhere earlier in the cycle, the mixture thus has sufficient time to burn and deliver its power. The ignition system should function efficiently at the maximum and minimum speeds of the engine. It should be easy to maintain, light and compact. It should not cause any interference. 
Buy top-quality spark plug- Click here 
To perform effectively, an ignition system must meet several key requirements:

1. Spark Generation

The primary function of an ignition system is to generate a high-energy spark through the wirings. This spark should be powerful enough to ignite the mixture reliably.

2. Timing Control

The ignition system must be capable of precisely controlling the timing of the spark plug’s firing. Timing is critical for efficient engine operation, as it ensures that ignition occurs at the optimal moment in the engine’s four-stroke cycle.

3. Voltage Regulation

The spark plug needs a perfect and continuous voltage to spark the fresh charge. Voltage regulation is necessary to prevent under- or over-firing of the spark plug.

4. Durability and Heat Resistance

Since the ignition system operates in a high-temperature environment within the engine bay, its components must be durable and heat-resistant to withstand these conditions over an extended period.

5. Compatibility with Fuel Types

The ignition system should be compatible with the type of fuel used in the engine, whether it’s gasoline, diesel, natural gas, or another fuel source. Different fuels may require variations in spark plug design and ignition system components.
These are the requirements for a better ignition system. 

Types of Ignition Systems

There are two types of ignition systems used in petrol engines- 
  1. Battery Ignition System.
  2. Magneto Ignition System.


Both ignition systems are based on the principle of mutual electromagnetic induction. The battery ignition system is mostly used in passenger cars and light trucks. In the battery ignition system, the current in the primary winding is supplied by the battery, whereas in the magneto ignition system, the magneto produces and supplies the current in the primary winding. Let’s discuss the both of these ignition systems-

Battery Ignition System

Starter Motor Maintenance | Tips for Repair.

Starter motor maintenance is important for starting the engine properly. In this article, I will discuss the starter motor maintenance tips and inspection details.   Starter Motor Maintenance > In the event that the starter motor fails to crank the engine at a high engine speed to allow it to …

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Basic Starter Motor Problems in a Car.

Starter motor problems can prevent your vehicle from starting. The starter motor is responsible for starting the engine with a cranking.

In this article, I will discuss the Starter motor problems that happen in a car. 
Starter Motor Problems

Starter Motor Problems

The starter motor is responsible for starting the engine. If the starter motor gets clogged then the engine can not start by the ignition system. The starter motor works on different components both mechanical and electrical. 
If you are experiencing issues around the engine not starting due to the starter motor, these are the problems that can happen-
  1. The starter motor does not turn to crank the engine.
  2. The starter motor cranks the engine slowly.
  3. The starter motor spins but does not crank the engine.
  4. The starter gear fails to disengage when the engine starts.


Each of these problems is discussed below in this article- 

1. The Starter Motor does not Turn to Crank the engine

If the starter motor does not turn to crank the engine then there are specific problems can happen in the starter motor. This issue can be caused by various factors, and diagnosing the exact cause requires troubleshooting. Here are the potential reasons and steps to address this problem:
> Too high resistance in the starter motor or control circuits.
> Open circuits in stater switches.
> Open or short circuit armature. 
> Open or short circuit field windings.
> Wrong starter motor brushes. 
> Broken or weak brush springs. 
> Tight armature shaft bearings.
> Locked starter motor drive.
> Hydrostatic lock due to some interference with the engine piston movement.
> Excessive friction in the engine. 

New Ola S1x Scooter launched in India automobilehut

The new Ola S1x scooter is launched in India with new features and stylish design. Read this article for better knowledge of this bike before buying it.

New Ola S1x Scooter

New Ola S1x Scooter

The new Ola S1x scooter was launched in India on August 15, 2023. Ola always made eco-friendly electric scooters, that are affordable and also environment friendly. The Ola S1X models comes with Ola’s curvy design language. Ola Electric announced that it has received over 75,000 bookings for its Ola S1 range within two weeks of its launch.
The all-new Ola S1x comes with various features and other details like cruise control and many other color options.


The Ola S1X is powered by a hub motor with a 2.7kW continuous power output and a 6kW peak for all three variants. The top speed in S1X and S1X+ is capped at 90kmph, whereas it’s 85kmph in the 2kWh variant of the S1X. All three variants get Eco, Normal, and Sports riding modes. Acceleration from 0-60kmph comes in 5.5 seconds for the S1X and S1X+ whereas it’s 7.9 seconds for the 2kWh variant. The motor is linked to a 3kWh lithium-ion battery pack in the S1X and S1X+. As the name suggests, the 2kWh variant of the S1X gets a 2kWh battery pack. It takes 7.4 hours to charge from 0-100 percent using the home charger (for all three variants).


The Ola S1x segment comes with 3 different price range options. These are- 


Variant Price Specifications
S1X 2KWH 90,019 (Ex-showroom) 91 km, 85 kmph
S1X 3KWH 99,979 (Ex-showroom) 151 km, 90 kmph
S1X plus 1,09,827 (Ex-showroom) 151 km, 90 kmph


The actual price depends on which location you book this bike. The actual price will get higher than the ex-showroom price in the range of 15-20000. 


The Ols S1X looks sleeker than the rest of the S1 range. It is because of the smaller headlight cowl. The apron and the side panel look similar to the regular S1. From the viewing angle, the telescopic fork and blacked-out steel wheels looked amazing.
The Ola S1X comes with multiple riding modes, reverse mode, side stand alert, LCD instrument cluster, Bluetooth connectivity with navigation, and cruise control. However, some of the features will vary with the variants.