Engine vs. Transmission: What's the Difference?

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Key Difference:

The difference between engine and transmission is that an engine is a machine that is used to produced mechanical energy whereas the transmission controls power in mechanical engines.

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Engine vs Transmission

There is a huge difference between an engine and a transmission. An engine is a machine that produces mechanical energy and on the other transmission is not a machine, transmission controls the power in mechanical engines. An engine is a machine whereas transmission is a gearbox, engine and transmission both are used in large devices. The engine in a machine is a device that produces mechanical energy. This mechanical energy is used by the machine to work, and transmission is a gearbox that transmits the mechanical energy generated by the engine to work.

Comparision chart

BasisEngineTransmission
MeaningAn engine is a machine that is used to produced mechanical energy.The transmission controls power in mechanical engines. 
Function The function of the engine is to produce mechanical energy.The function of the transmission is to transmit mechanical energy that is produced by the engine.
Torque Torque is produced in the engine.Torque is not produced during transmission.
GearsThe engine does not have drive gears.The transmission has many drive gears.
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What is Engine?

Any machine works when any form of energy is converted into mechanical energy. The engine in the machine converts other forms into mechanical energy that’s why the engine is also known as a motor.  There are types of many types of engines:  Heat engines, electric engines, physical engines, hydraulic engines. Heat engines convert heat into mechanical energy; electric engines convert electricity into mechanical energy, real engines convert physical force into mechanical energy.

Other types of engines are:

  • External combustion (E.C.) Engine
  • Internal Combustion (I.C.) Engine

Further types of internal combustion engines are:

  • Two stroke engine
  • Four stroke engine

What is Transmission?

Transmission controls the process of power transmission of energy. Transmission is a gearbox; engine produces torque and transmission further transmits this torque. Transmission is mostly used in motor vehicles.

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The transmission helps higher motor velocities to work with the slower wheel speeds. This helps to increase the torque. The transmission has many gears; they help to speed the function of transmission.  These gears have to change physically and make this process automatic.

If we talk about transmission in cars, a transmission in the car is an extension between the motor and the drive wheels of a vehicle. It changes torque and drives to different speed limits. So basically, it sends control from the initial segment to the second part to assist the auto with moving forward and in reverse. The programmed adaptation of the gearbox can switch gears with the development of the vehicles; the driver does not have to do anything aside from choosing the motors.

Key Differences

  • An engine is a machine that is used to produced mechanical energy. The transmission controls power in mechanical engines.
  • The function of the engine is to produce mechanical energy. The purpose of the transmission is to transmit mechanical power that is provided by the engine.
  • Torque is produced in the engine. Torque is not generated during transmission.
  • There are types of many types of engines: Heat engines, electric engines, physical engines, hydraulic engines. Types of transmission are decided on types of gears.

Conclusion

In this article, we have seen the difference between engines and transmission in the regards of mechanics that is the study of machines.

Explanatory Video 

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