The piston ring grooves for a standard engine are ()
相似题目
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When good and steady service conditions have been achieved, the running surfaces of the piston rings and cylinder liner will be()In addition, the rings will move freely in the grooves and also be well oiled intact, and not unduly worn.
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If the back clearance of a piston ring is excessive,()
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The function of the piston compression rings used in a diesel engine is to ()
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In a diesel engine, when refitting piston rings you should () Ⅰ.check the ring gap at the smallest diameter of the cylinder Ⅱ. Remove carbon from the ring groove
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In the sentence “In some designs the cylinder oil is timed so that the oil injects only on the piston ring belt, the "piston ring belt" means ().
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In large marine diesel engines cylinder oils usually contain additives formulated to impart the () to clean the rings and grooves.
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Broken piston rings manifest themselves during the scavenge port inspection by()
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The piston rings are manufactured with a diameter () the bore of the cylinder.
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If the piston groove drain holes for the oil control rings become clogged, which of the following is likely to occur?()
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The main purpose of the piston oil scraper rings is to ().
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A condition contributing to diesel engine piston rings sticking in the ring grooves, is insufficient ring clearance at the ring() Ⅰ.gap Ⅱ.side
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In a diesel engine, excessive cylinder liner wear will cause () (1) increased blow-by (2) wear between the piston ring and groove
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() neutralizes the acid conditions and() cleanses the rings and grooves.
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The sealing function of the piston ring is brought about by the gas pressure above and behind the piston ring, which forces it () against the bottom of the ring groove, and () against the cylinder wall.
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When installing rings on a diesel engine piston, you should check the ring()
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Ring groove inserts are occasionally used on aluminum alloy piston to()
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If the piston ring gap remains insufficient when installing new rings, youshould()
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Insufficient end clearance on newly fitted piston rings in a diesel enginewill cause the rings to()
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If the compression rings on a diesel engine piston become stuck in the ring groove, the cause may be due to()
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The piston rings if found worn out () and supplied by shipchandler.
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The main function of piston compression rings is to ()
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Diesel engine piston ring blow-by is usually caused by excessive ring clearance at the ring()
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The lowest ring of a piston is ().
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Black areas on the sealing surfaces of piston rings indicate_.
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