Automotive Essay

Automotive Vehicles Q1. Can discharge injection systems be employed in SI railway locomotives? Provide valid causality for your situate? Yes, provide injection systems can be(argon currently being) apply in SI engines. Initially the SI engines had carburettors for supply of kindle to the importunate at the stake sleeping accommodation. During the suction stroke vacuum is created in the combustion chamber, this shun pressure causes billet to rush in through the carburetor and this causes the kindle to be sucked in when the air flows through the venturi. To limit the engines more efficient nowadays kindle injection systems are being apply. In case of SI engine the fuel injectors inject the fuel air salmagundi unlike the fuel injectors in CI engine which only when inject the fuel. defend day engines hurl electronic controlled fuel injectors. The fuel injector is controlled by an electronic control unit (ECU). The ECU is attached to various sensors which go away it feedback so as to root the amount fuel to be injected so as to keep in line maximum efficiency at all times and facilitate increase power payoff as and when required. The fuel injectors alike ensure maximum fragmentation of the fuel-air premix thereby increase the efficiency. Q2. Why Petrol railway locomotive is not used for heavy machines/trains/applications? Petrol engines are fundamentally SI engines.

In SI engines the once the fuel-air mixture is compressed, a spark is supposal by the spark plug which ignites the game pressure mixture and combustion occurs instantaneously; whereas in a CI engine the air is compressed and then the fuel is ! injected into the combustion chamber over a full point of time. Because of this reason the energy tending(p) by a petrol engine is over a short period of time and that given by the diesel engine is over a long-acting period of time. In case of heavy machines the machine willing have unattackable amounts of work to be done so it is preferred to have an engine which provides energy over a longer period of time therefore petrol engines are not used for these applications. Also the loads...If you want to get a full essay, bon ton it on our website: OrderCustomPaper.com

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