Irrigation Engine Ratings Guide - Caterpillar

Rating ConditionsRating ConditionsDiesel Engines — up to 6.6 literAll rating conditions are based on ISO/TR14396, inlet air standardconditions with a total barometric pressure of 100 kPa (29.5 in.Hg), with a vapor pressure of 1 kPa (.295 in. Hg), and 25°C (77°F).Performance measured using fuel to specification EPA 2D 89.330-96 with a density of 0.845-0.850 kg/L @ 15° C (59° F) and fuel inlettemperature 40° C (104° F). Applies to advertised gross intermittentratings.Diesel Engines — 7 liter and higherAll rating conditions are based on SAE J1995, inlet air standardconditions of 99 kPa (29.31 in. Hg) dry barometer and 25°C (77°F)temperature. Performance measured using a standard fuel with fuelgravity of 35° API having a lower heating value of 42,780 kJ/kg(18,390 btu/lb) when used at 29° C (84.2° F) with a density of 838.9 g/L.Natural Gas EnginesEngine rating obtained and presented in accordance with ISO 3046/1.(Standard reference conditions of 77° F, 29.60 in. Hg barometricpressure, 500 ft. altitude.) No overload permitted at rating shown.Consult altitude curves for applications above maximum rated altitudeand/or temperature.Power UnitMay include radiator, engine base, control panel and wiring, aircleaner, cooling fan, clutch as an assembled unit. Attachments listedabove may vary upon engine model.ISO 9001:2000 CertificationFactory-designed systems built at Caterpillar ISO 9001:2000 certifiedfacilities.EPA Stationary RegulationsFor important information related to the New Source PerformanceStandard (NSPS) for diesel stationary engines, refer to the EPA website at www.epa.gov.AbbreviationsNA ......................................... Naturally AspiratedT ................................................ TurbochargedTA. .................................. Turbocharged/Aftercooledbhp.......................................... Brake horsepowerbkW .......................................... Brake kilowattsLE ............................................... Low EmissionNSPS........................ New Source Performance StandardSI ............................................... Spark IgnitedSI NSPS ......... Spark Ignited New Source Performance StandardSTD ........ Standard (stoichiometric) engine highest power ratingCAT .............. Standard (stoichiometric) engine Catalyst ratingMJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mega Joulesbtu ......................................... British thermal unitEPA ........................... Environmental Protection AgencyEU. ............................................ European Unionr a t i n g S G U I D E1