Inline Engine diagram

InLine Engine: Design & Characteristics

What is InLine Engine:

InLine Engine is a type of engine design that is very basic and conventional. In this type of engine construction, the cylinders are placed in a straight line as shown in the diagram. As all the cylinders are in a straight line, manufacturers sometimes refer to this engine as the 'Straight Engine'. In line engine can have upto 2, 3, 4, 5, 6 or 8 cylinders. The manufacturers term am in-line engine with four cylinders as Inline-4 engine. It is usually denoted by either I4 or L4 (longitudinal 4) in a car's nomenclature.

However, manufacturers classify the six cylinders as straight-6 & for 8 cylinders it is straight-8 engine respectively as opposed to an inline-6 or inline-8. Many vehicular applications such as cars, light commercial vehicles, medium & heavy commercial vehicles and earth moving equipment widely use this design. This is mainly because the manufacturing cost of the in-line engines is lower than the 'V-engines'.



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Inline engine type is most common type of engines in vehicles with engine capacity upto 3.0L. The Inline engine type design is simple. Hence, it is considerably easier and cheaper to manufacture than a horizontal or a ‘V’ engine. In this design, engine's camshaft is normally housed in the cylinder block with tappets & push-rod arrangement to operate them. The manufacturers place the engine valves either in the block next to the pistons or in the cylinder head.

Most A, B & C segment passenger cars such as hatchbacks, coupes and sedans  used the in-line engines. The cars with In-line engine in A segment are: Maruti Alto 800, Maruti Celerio, Tata Tiago. Cars with In-line engine in the B segment are: Honda City, Toyota Corolla, Hyundai Elentra, Verna, Chevrolet Cruise etc.

For more information on in line engines, please click here.

 

Watch In-line engine working video here:

Read More: What is a 'V-Engine design'?>>

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