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FUEL INJECTION SYSTEM IN PETROL ENGINE. . . When bs6 technology came into era the Indian bikes(petrol fuelled) are replaced by throttle bodies and electronically controlled fuel injection systems in place of the normal carburettors. This fuel injection systems are already used in some highly specificated bikes and normally in all petrol engine cars. . .  MAIN POINTS TO CHANGE FROM CARBURETTORS.  . .  The carburettors takes fuel according to the volume of air and not according to the temperature of the air. The temperature change in air changes its volume, density and also affects the presence of oxygen in the air. That is when the temperature of the air increases the air becomes thin and thick when temperature decreases, the density of air also decreases with increase in altitude. When density decreases it also decreases the oxygen content in the air and this oxygen is needed at higher proportions for the engine to work efficiently. That is why the power and torque of the...

CKD (completely knocked down) CBU (completely Built-up) .   . CBU . As the name suggests these cars are completely built up as a whole somewhere in the world and imported into the counties(i.e)The cars are imported as completely operatable in the road. Due to the taxes the cost of these cars were higher compared to CKD. . (For example Polo GTI in india is the CBU as it was completely assembled in Germany and imported to india as a whole car.) . . . CKD . In ckd the parts of the car is manufactured in the homeplant or home country of that brand and assembled in the locality where it is to be sold. . (For example for polo GT in india, the parts are manufactured in germany and assembled to completly operatable car in volkswagen chakan plant in india.). . . The company or brand decides about CKD or CBU according to the units sold in the country.

On 1st of April, the government of India upgraded the BS4 emission norms. These emission norms were a big step forward from the previous BS3 emission norms. . Though BS4 a huge step, it was a new emission norm after nearly a decade. The government thought of compensating the time hence decided to launch BS6 after BS4. . A Bharat Stage 6 ready engine has major modifications to its components to make it cleaner and adhere to the BS6 emission norm. Modifications like improved fuel quality composition and a DPF (Diesel Particulate Filter) and SCR (Selective Catalytic Reduction) in diesel cars are integrated with the exhaust system to make the vehicle BS6 ready. . BS6 emission norms which are stricter by reducing NOx emissions by approximately 25-70%. Additionally, under BS6 emission standards, the hydrocarbon emissions, and particulate matter emitted from tailpipes of vehicles would be controlled and reduced. India currently follows BS4 standards and it will the first country t...

Volkswagen to sell its iconic hatchback(polo) with 1.0 L TSI and MPI engine in india. I can catch your mind...you may think..."1.0l engine???? Whats about the power of polo??shit !!" . This engine was refined to retain the punch of polo although it was 1.0 liter. let us have some interesting knowledge about it. . 1.0 L - it represents that the engines displacement is nearly equals to 1000cc. . MPI(Naturally aspirated version with low power) - Multipoint Fuel Injection(each cylinder has a dedicated fuel injector)"The ECU decides the appropriate quantity and pressure of the gasoline fuel to be sprayed for the rich air fuel mixture". . TSI - Turbocharged Stratified Injection  . Turbocharged - as we already known the intake air was turbo forced to increase the power by maintaining the effeciency. . Stratified - its similar to the word layer, the word "stratified" mentions that the fuel is injected as such to create the layer of air fuel mixture ins...

MERCEDES  BENZ BLUETEC EMISSIONS TECHNOLOGY   It is the Mercedes benz developed technology designed to control the diesel vehicle emissions making the vehicle operating at highest level of efficiency and power output .This technology is used in EURO 5,EURO 6 AND BS 6 engines. .  The bluetec emissions technology is the complete emission systems which utilizes the EGR(exhaust gas recirculation) engine and it’s the 1-box system ,which contains the components like Diesel Oxidation Catalyst (DOC),Diesel Particulate Filter(DPF),Diesel Exhaust Fluid tank(DEF tank) and Selective Catalyst Reduction(SCR catalyst).All these components work together to meet current emission  standards  and increases the efficiency of the engine by lowering the back pressure. HOW DOES BLUETEC WORKS?   . The bluetec system controls  the emissions by performing several chemical reactions inside the 1-box system. The exhaust gas leaves the engine with NOx , particulate mat...

WHAT IS GATE?                                                  The GATE is abbreviated as Graduate Aptitude Test in Engineering which is a national-wide exam of India, conducted by 7 IIT'S and IISc Bangalore. This exam is completely a computer-based test that tests for the comprehensive understanding of various subjects in the undergraduate program. This score is mainly required for admission for master's program in various IIT's IISc's and several other government-funded top colleges in India with financial assistance.  GATE score is very much important for recruiting graduate engineers in public sector units.            Cracking this exam is very much easy for those who have a complete application and aptitude-based knowledge in engineering subjects. Proper planning and hard work can get you a better rank in this test.  ...

             Some cool technologies enhance the safety of vehicles and ease of driving. One among those named ADAPTIVE CRUISE CONTROL had fascinated the drivers in assisting for convenience in long highway driving. This Technology can be seen in every premium car and presently even in budget segments too. These coolest technologies find the trend of the next generation. WHAT IS MEANT BY ADAPTIVE CRUISE CONTROL?           Adaptive cruise control can take over the controls of acceleration and braking in highway driving with certain preset instructions from the driver (Distance maintained from the vehicle ahead, speed should be maintained) so, that the driver can take off his foot from the pedals and enjoy the cruising with convenience. ACC(Adaptive Cruise Control) is also called by 20 unique names. HOW STANDARDS DESCRIBE ADAPTIVE CRUISE CONTROL?             As per the standard scale adopted by the So...

Which is the worlds powerfull 4 cylinder engine?? Here comes the mercedes M139 lets see the architecture and technical background behind it.... This is the turbocharged((twin scroll "[exhaust from cylinder 2,3 is one scroll and 1,4 cylinder is another scroll which prevents the exhaust pulse affexting the other cylinder]" turbo)for the first time mercedes uses roller bearing turbocharger which reduces friction and spools up quickly)2l inline four cylinder(transversely mounted)engine which produces 416hp(6750 rpm) and 369 lb-ft of torque(5000 to 5250rpm) which is used in the A45, the CLA45, the GLA45, and the GLB45. The design architecture is done with flattened front which increases the aerodynamics of the vehicle, cooler side of the engine facing front(intake and intercooler). Configurations Firing order -- 1,3,4,2 Cubic centimetre    -- 1991 Capacity     -- 2L Power -- 416hp Turbocharger -- twin scroll roller bearing tech with 30.5 psi of bo...

Japanese car brand Nissan has joined BMW, MINI and Volkswagen in officially replacing its three-dimensional emblem with a flat, two-dimensional logo. The company name has been kept at the centre of the logo, but is no longer raised and has been simplified into basic, block lines. The font has also been refined and the lettering stretched out to create more in-between space, offering a cleaner aesthetic. Nissan's debuted its new logo on the electric Ariya SUV and all of the brand's future fully-electric vehicles will feature an illuminated version of the design. This will be lit by 20 LEDs – a number chosen to represent the number of years since the last logo redesign.

RETARDER BRAKING SYSTEM Breaking the truck generates high amount of pressure,wear and heat on the brake disks and brake pads and in some cases,continuous braking during downhill or in traffic leads to the decrease of brake pressure,The truck needs to halted in safe place to recharge the compressor. The best solutions for these safty less conflicts is the RETARDER BRAKING SYSTEM. The reatarder brake system gives the smooth braking experience with no energy loss,wear,noise while slowing down the heavy loaded trucks.It saves the maintainance cost on replacing the brake disks,linings and brake pads. HOW RETARDER WORKS? Retarder is a hydraulic system that is integrated into the output end of a truck’s gearbox and uses high-pressure oil as a braking medium Via a gear transmission, the Retarder acts on the output shaft of the gearbox and thus directly on the propeller shaft. Once the Retarder is applied, it generates a braking force on the propeller shaft corresponding to up to ...

This TSI(Turbocharged stratified injection)is the heart of volkswagn GTI comes under the family of EA888. Now what is EA888??? The EA888 is the four or three cylindered engines made by volkswagen groups.These GTI uses four cylinder EA888 engine with advanced technologies which are mentioned below and has number of sensors and mechatronics which increases the engines intelligence and good man machine interface. ⚡Specifications(It has more types only the 2.0 litre is discussed) 💥 Engine : 2.0L turbocharged inline 4 cylindered.Engine block Made of iron and aluminium alloyed head.  💥 weight : 320 pounds (145.15kg) approx.  💥 Firing order : 1-3-4-2.  💥 Bore : 82.5mm . 💥 stroke : 92.8mm . 💥 Displacement : 1.984L(1984cc) . 💥 Power : 220HP @ 4700RPM.  💥 Torque : 258lb-ft(347NM)@ 1500-4500 RPM. . 💥 Redline : 6800 RPM.  💥 Compression ratio : (9.6 : 1).  💥 Cam : Dual Over Head Cam (DOHC)*chain driven cams 💥 Valves : 16 valves (VVT @ ...

The portable power supply !! The marvellous invention right?? This invention mainly depends upon storing energies in small  lithium ion cells . The combination of these cells makes a  lithium ion battery . These batteries are used to power the prime mover of tesla cars. The Engineers of Tesla, Inc . The American based EV manufacturing company had used their wide minds by implementing battery management system to make this batteries more efficient and reliable in powering their vehicles. THE TESLA CELL                                                       The tesla cell is simply a lithium ion cell which consists of several chemical compounds for its function. One of the main compound is lithium which has the higher tendency to lose electrons. It works on the interesting principle called electrochemical potential which is the tendency of t...

Hi, there! this is Krish from India welcome to my blog site. Here you can get many interesting contents about engineering and current trends in engineering. keep supporting if you love my page. INSTAGRAM :  https://instagram.com/___._. krish._.___?igshid= 165x9nciettmr