Monday, May 9, 2016

F1 nuanced modern gasoline engines diesel and jet technology


At the start the Australian Grand Prix (20/03/2016) then, Sebastian Vettel car shot like a rocket. Started the race from third position immediately left Hamilton who was in the front and Nico Rosberg. Kimi Raikkonen, his teammate Vettel was equally fast.


This leaves a question mark for many observers F1. A good start is about two things, the clutch or the engine. Not aerodynamics because of the speed at start is still low. Not too mechanical setup for directions start still straight.

Confirmation finally came from Mahle, one of the engineering design for the internal combustion engine of the UK, which is a partner of Ferrari in F1. Cardiac pacemakers Ferrari F1 is currently considered to adopt the concept of diesel engines and jet propulsion. But how can that be? Is not is not suitable for racing diesel and jet engines are also not for vehicles on land?


Strengths and weaknesses


Mahle is not wrong. Diesel, though not suitable for racing (except for endurance races like Lemans) has many advantages over gasoline engines. Three of them are burning efficiency, resistance to the effect of "ngelitik" (knocking) - even diesel may not experience knocking - and burning speed material air-fuel mixture more rapidly than gasoline.


But the advantages of diesel is not necessarily to be adopted on the gasoline engine without any defects. The main drawback of diesel is a step in a long piston (to produce high compression for diesel tidakmemiliki spark for ignition or combustion process).

Though renowned F1 engine with short steps, which can be lauched more than 20,000 rpm (assuming the regulations allow). Weakness long strides diesel can be overcome with a turbocharger for compressing air can enter the combustion chamber so that the high pressure.

Another difference between petrol and diesel is about the ignition system. In gasoline engines, the combustion process is done by a spark plug. Being on diesel due to high pressure (compression ignition). The challenge is how to turn on the air and gasoline that have been mixed in the combustion chamber without using a spark plug.


Challenge


The answer is by jet technology. The new findings are adopted Ferrari was Turbulent Jet Ignition (TJI). So called because TJI combines three things.


The first is a system that uses the injection of a hole nozzle design. The system is designed so that the flow pattern berturbulensi injection in the combustion chamber. The goal is that the fuel is injected could be mixed homogeneously with the first air mixture already in the combustion chamber.


Both are jet system. That is, the injected fuel is burning (because oxygen is injected by the injector) and there was a small spark in the chamber (combustion chamber) is small at the other end just before the injector nozzle.


The third thing is the ignition or ignition. Results terinkjeksikannya TJI flame of this injector, the fuel air mixture in the chamber lit as well as spark ignition. It answers the challenge without spark ignition earlier.


Even TJI process is much better than spark ignition (spark-ignited) because the flame is ejected from the nozzle has pressure and velocity. TJI is referred jet technology on F1 engines. The flame is ejected from the nozzle similar to jet blast.

Conventional
Nevertheless, the Ferrari engine retains a conventional spark plug for spark was ignited later, ie at the pace of expansion. The goal is that no fuel air mixture that did not get burned at the end of the cycle.


F1 regulation of multiple-ignition allow a maximum of five times in each combustion cycle. So the engine can ignite the spark plug Ferrari five times during the expansion step.


Ferrari is believed to start using TJI since the Canadian GP 2015. To date, the new Ferrari engine which is believed adopt sistemTJI. But many tech observers believe that soon TJI will be adopted also by other F1 engine providers such as Mercedes, Renault and Honda.


Great revolution in the automotive world has occurred, the gasoline engine is now able to work with the diesel principle, without plugs! F1 has always been a pioneer of the major changes in automotive technology.


Many people say F1 is racing pole. During this time the assumption was only referring to the speed of the car-like jet. Although none of the jet principle adopted in the F1 car. Currently the assumption might be more appropriate to use. Therefore, the F1 engine is currently working with the principle of diesel and jet injector!


Source: kompasotomotif

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