The crankshaft revolutions per minute at which the rated power occurs as specified on the nameplate and in the technical file of the engine.
Related Terms |
ASME SECTION I
Power Boilers.
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CROWN
The top of the piston in an internal combustion engine above the fire ring, exposed to direct flame impingement.
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DEPOSITS
Oil-insoluble materials that result from oxidation and decomposition of lube oil and contamination from external sources and engine blow-by. These can settle out on machine or engine parts. Examples are sludge, varnish, lacquer and carbon.
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CLASSIFICATION SOCIETY
Independent and reputable organizations which verifies and inspects vessels for seaworthiness. As technical experts, they serve to provide the necessary basis for adjusting insurance rates for the vessel.
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HALF-POWER POINTS
Power ratios used to define the angular width of a radar beam. One convention defines beam width as the angular width between points at which the field strength is 71 percent of its maximum value. Expressed in terms of power ratio, this convention defines beam width as the angular width between half-power points. A second convention defines beam width as the angular width between points at which the field strength is 50 percent of its maximum value. Expressed in terms of power ratio, the latter convention defines beam width as the angular width between quarter- power points.
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ADIABATIC EFFICIENCY
The ratio of actual work output of a heat engine to the ideal output.
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API ENGINE SERVICE CATEGORY
Gasoline and diesel engine oil quality levels established jointly by API, SAE, and ASTM, and sometimes called SAE or API/SAE categories; formerly called API Engine Service Classifications.
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INTENSIFIER
A device which converts low pressure fluid power into higher pressure fluid power.
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ANSI-B.31.1
Power Piping.
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ASME SECTION XI
Rules for in-service inspection of Nuclear Power Plant components.
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