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| Miller cycle |
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The cycle that lets engines work with high compression ratios without any danger of producing an explosion is called in this way. It is based on the Otto petrol cycle. It works by means of a large cylinder. with respect to the volume of the combustion chamber. The cylinder is never filled completely with the mixture. so the end temperatures in the compression are not so high and neither do they manage to ignite the fuel. Their advantage comes from the variation of the available volume to do the expansion. As the cylinder volume is so big the gases manage to expand completely. When the exhaust valve opens there is no residual pressure in the cylinder. This cycle improves the filling and has a very short opening time for the admission valve because it has a compressor and an intercooler. Mazda uses this cycle and has baptised it with the name M-Miller.
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| Mineral oils |
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Oil that use lubricating components obtained from petroleum
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| Minerals |
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A term used when speaking about oils. These are the lubricants developed from bases coming directly from the distillation of crude oil.
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