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Question:

Is it possible to convert a diesel car engine to CNG ?

I drive a TATA Indica DLS (not turbo), I understand that it has a base diesel engine which has 55 bhp. I have heard that CNG kits are available in the market and CNG is much economic and eco friendly. Please comment if you know about it. Is it possible ? and how much will be the cost for the conversion ? What are the steps involved ?

Answer:

Not completely. A diesel engine is a compression engine hence it's the compression that ignites the fuel, natural gas doesn't ignite easily under compression and therefore requires a spark for ignition. However, it's possible to mix natural gas with the intake air but reduce the diesel fuel injectors so that a small amount of diesel fuel is injected, the diesel fuel ignites under pressure and this ignites the natural gas. Basically, it can mostly run on natural gas. Such a conversion requires some way of reducing but not eliminating the diesel injected as well as mixing in the natural gas preferably in proportion to the amount of air or according to the needs of the engine somehow. As it requires changing the fuel injector programming, this is not a conversion that is easily available but kits are available. A more practical conversion for a diesel car would be a waste vegetable oil conversion though I would consider a natural gas conversion suitable for a backup power generator especially if the conversion still allows for full diesel operation when needed. Diesel keeps much longer than gasoline when stored.
you incredibly choose a sparkling engine altogether, one designed to reliably run whilst offering the intense compression ratios like 22:a million mandatory to assist combustion of diesel or different oils. gas engines are purely sturdy for 10:a million compression presently. If the vehicle is already a ordinary diesel vehicle, i've got self assurance all you pick is a few further gas filtering to run on so reported as bio diesel.

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