Introduction of Engine

                 Engine is the most important part of the vehicle. I will give brief information about engine I hope this will clear the basic idea of engine.

                       There are various types of engine available but widely used engine is the internal combustion Engine, piston-type, 4-stroke /cycle, 2-stroke/cycle, gasoline fueled and spark ignited. The SI engine configuration is shown in figure 1.1, which commonly found in the period.

                                       

                           

                                       Figure1.1: Engine-system

Components of an Engine:-

                                 The major components of an engine as follows

·         Engine block

·        Cylinder

·        Crankshaft

·        Pistons

·        Connecting rods

·        Camshaft

·        Cylinder head

·        Valves

·        Fuel control system

·        Ignition system

·        Exhaust system

·        Cooling system

      As the subject name is Automotive Electronics, one should understand the role of an electronics in Automobiles.

The electronics play a direct role in only the fuel control, ignition and exhaust.

In the present days most of the vehicle are automotive based which mean’s that in future the most number of vehicle are automated. So this blog is helpful for  built up your automotive electronics knowledge.  

·  Engine Block:-
                      
              The engine block is the most important part of vehicles that on internal combustion, providing the power house for the vehicle.

The internal combustion engine is engine which converts the movement of piston to the rotational energy used to drive wheels.

The cylinder are cast in the engine block and machined to smooth finish.

The piston are connected to crankshaft by using connecting rods, as shown in figure 1.2(a)The crankshafts convert the up and down motion of piston to the rotary motion which is used for to drive the wheels.

                             Figure1.2(a) Piston connection to crankshaft

•         Cylinder head :-

                    Cylinders are linear actuators which convert fluid power into mechanical power. Cylinder is used at high pressure and produce large forces and precise movement for this reason they are constructed of strong material like steel.

The cylinder head is having two valves one is for intake and another is for outlet. When both valves are closed, the head remains at the top of the cylinder and the piston rings remains at the bottom of the cylinder.

The fluid pushes against the face of the piston and produces a forces. The force produced is given by the formula

                        F=pA

Where, p=pressure in N/m^2

             A=area the pressure act on in m^2.
    ·        Camshaft:-

                   In internal combustion engines with piston, the camshaft is used to operate poppet valves. It then consists of a cylindrical rod running the length of the cylinder bank with a number of oblong lobes protruding from it, one for each valve.
The camshaft as shown in figure1.2(b).

The cam lobes forces the valves open by pressing on the valve or on some intermediate mechanism as they rotate.

                                          Figure1.2(b) Camshaft

·        Crankshaft:-

                       The crankshaft is located in the engine of vehicle and the force which will generated in engine by piston moving up and down motion this force is converted in circular motion so the vehicle can go forward.

Crankshaft is connected to all pistons in the engine and to the flywheel as shown in figure 1.2(c)

The crankshaft is the part of an engine that translates reciprocating linear piston motion into rotation. To convert the reciprocating motion into rotation, the crankshaft has crank throws or crankpins, additional bearing surface whose axis is offset from that of the crank, to which the big ends of the connecting rods from each cylinder attach.

                                       Figure1.2(c) Crankshafts

Types Of Engine