AutoMotive News

          A spark plug is a device used to produce an electric spark to ignite the compressed air-fuel mixture inside the cylinder. The spark plug is screwed in the top of the cylinder so that it electrode projects in the combustion chamber.                                      A spark plug consist of mainly three parts: 1.  Center  electrode or insulated electrode. 2. The ground electrode or outer electrode. 3. Insulation separating the two electrodes.               The upper end of the center electrode is connected to the spark plug terminal, where the cable from the ignition coil is connected. It is surrounded by an insulator. The lower half portion of the insulator is fastened with a metal shell. The lower portion of the shell has a short electrode attached to one side and bent in towards the center electrode s...

          It is very interesting to know about complete combustion in automobile engineering because, in actual practice, perfect combustion is not at all possible due to various losses in the combustion chamber as well as the design of the internal combustion engine. Moreover, the process of burning of the fuel is also not instantaneous. However, an alternate solution to it is by making the combustion of fuel as fast as possible.           This can be done by using two spark plugs that spark alternatively at a certain time interval so as increase the diameter of the flame & burn the fuel instantaneously. This system is called the DTSI (Digital Twin Spark Ignition system). In this system, due to twin sparks, combustion will be complete.           This paper represents the working of digital twin spark ignition system, how twin sparks are produced at 20,000 Volts, their timings, efficiency, adva...

                    CRDi  stands for Common Rail Direct Injection meaning, direct injection of the fuel into the cylinders of a diesel engine via a single, common line, called the common rail which is connected to all the fuel injectors.           Whereas ordinary diesel direct fuel-injection systems have to build up pressure anew for each and every injection cycle, the new common rail (line) engines maintain constant pressure regardless of the injection sequence. This pressure then remains permanently available throughout the fuel line. The engine's electronic timing regulates injection pressure according to engine speed and load. The electronic control unit (ECU) modifies injection pressure precisely and as needed, based on data obtained from sensors on the cam and crankshafts. In other words, compression and injection occur independently of each other. This technique allows fuel to be injec...