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However, Detroit Diesel two-stroke cycle engines commonly use oil cooled by water, with the water in turn cooled by air. [4] The coolant used in many liquid-cooled engines must be renewed periodically and can freeze at ordinary temperatures thus causing permanent engine damage when it expands. Air-cooled engines do not require coolant service ...
The Wankel engine features oil cooling in addition to liquid-cooling to successfully manage its excessive heat. This rotary engine is most famous for its application in the Mazda RX-7 and RX-8. Lubrication is a rudimentary form of oil cooling. Some slow-turning early engines would have a "splashing spoon" beneath the big end of the connecting rod.
Some engines have an oil cooler, a separate small radiator to cool the engine oil. Cars with an automatic transmission often have extra connections to the radiator, allowing the transmission fluid to transfer its heat to the coolant in the radiator. These may be either oil-air radiators, as for a smaller version of the main radiator.
A coolant is a substance, typically liquid, that is used to reduce or regulate the temperature of a system. An ideal coolant has high thermal capacity, low viscosity, is low-cost, non-toxic, chemically inert and neither causes nor promotes corrosion of the cooling system.
Only a few made it to the sales floor, only to be recalled and destroyed by Chevrolet. The 1923 Chevrolet Series M Copper-Cooled consumed extensive amounts of resources to develop and was a failure in the end. [2] [1] The engine was manufactured as an alternative to the Franklin which also used an in-line air-cooled engine.
During the 1920s and 30s there was a great debate in the aviation industry about the merits of air-cooled vs. liquid-cooled designs. At the beginning of this period, the liquid used for cooling was water at ambient pressure. The amount of heat carried away by a fluid is a function of its capacity and the difference in input and output temperatures.
The viscosity of a liquid can be thought of as its "thickness" or a measure of its resistance to flow. The viscosity must be high enough to maintain a lubricating film, but low enough that the oil can flow around the engine parts under all conditions. The viscosity index is a measure of how much the oil's viscosity changes as temperature ...
Old Buda 8-cylinder Diesel engine. Buda-Lanova engines were also used by the Whitcomb Locomotive Works of Rochelle IL. Two Buda-Lanova model DCS 1879 6 cylinder supercharged Diesel engines (6.75 bore x 8.75 stroke, 325 hp @ 1,200 rpm) were installed in both 65-DE-14a and 65-DE-19a Diesel electric centercab locomotives that were purchased by the Army and shipped over to Africa and Europe during ...
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