The four strokes are called suction, compression, expansion and exhaust, but only () stroke provides the power to drive the ship.
相似题目
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The camshaft on a four-stroke/cycle diesel engine provides a means to operate the ().
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For an ordinary four-stroke engine the exhaust valves open ().
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A turbocharged, four-stroke/cycle diesel engine has a larger valve overlap than a naturally aspirated four-stroke/cycle diesel engine, in order to in crease the ().
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In a four-stroke cycle diesel engine the intake valves open ()
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For an ordinary modem marine four-stroke engine the inlet valves close ().
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The four-stroke cycle begins with the piston ().
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One of the differences between a two-stroke engine and a four-stroke engine is,()
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In the four-stroke engine, it takes () to make one power stroke.
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A two-stroke diesel engine exhaust temperature will be lower than a four-stroke diesel engine of the same displacement because the () (1) MEP is lower and the scavenging air is cooling the exhaust gases (2) valve overlap in a four-stroke
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In a four stroke engine, which process lasts the longest period?()
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Compared to four-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantage of ()
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()is the main reason that reduces the power advantage of a two-stroke engine over a same size four-stroke one to about()
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In a four-stroke/cycle diesel engine, after the completion of the power stroke, the piston will move()
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In a four-stroke engines the camshaft rotates at ().
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During the power stroke of a four-stroke/cycle diesel engine, most of the side thrust of a trunk-type piston is absorbed by the()
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In a four-stroke/cycle diesel engine, the camshaft rotates at ()
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According to the principle of four stroke diesel engine, what is the number of its efficient work stroke per revolution?()
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For an ordinary four-stroke diesel engine the exhaust valves close ().
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For an ordinary four-stroke engine the inlet valves open ()
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The reversing cams of some four-stroke/cycle diesel engines are brought into position by ()
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In an ordinary four-stroke engine the exhaust valves open ()
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The four strokes of a four-stroke diesel engine according to their sequence are :suction,compression,expansion and exhaust.()
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Among the four strokes of a four-stroke diesel engine,suction and expansion strokes are the upward strokes.()
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