1、Designation:D620104(Reapproved 2014)Standard Test Method forDynamometer Evaluation of Unleaded Spark-Ignition EngineFuel for Intake Valve Deposit Formation1This standard is issued under the fixed designation D6201;the number immediately following the designation indicates the year oforiginal adoptio
2、n or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers an engine dynamometer testprocedure for evaluation of inta
3、ke valve deposit formation ofunleaded spark-ignition engine fuels.2This test method uses aFord Ranger 2.3 L four-cylinder engine.This test methodincludes detailed information regarding the procedure,hardware,and operations.1.2 The ASTM Test Monitoring Center(TMC)3is respon-sible for engine test stan
4、d calibration as well as issuance ofinformation letters after test method modifications are ap-proved by Subcommittee D02.A0 and Committee D02.Usersof this test method shall request copies of recent informationletters from the TMC to ensure proper conduct of the testmethod.1.3 The values stated in S
5、I units are to be regarded asstandard.The values in parentheses are provided for informa-tion only.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health p
6、ractices and determine applicabilityof regulatory limitations prior to use.Specific warning state-ments are given throughout this test method.1.5 This test method is arranged as follows:SubjectSectionScope1Referenced Documents2Terminology3Summary of Test Method4Significance and Use5Apparatus6Laborat
7、ory Facilities6.1Engine and Cylinder Head Build-Up and Measurement Area6.1.1Engine Operating Area6.1.2SubjectSectionFuel Injector Testing Area6.1.3Intake Valve Rinsing and Parts Cleaning Area6.1.4Parts Rating and Intake Valve Weighing Area6.1.5Test Stand Laboratory Equipment6.2Test Stand Configurati
8、on6.2.1Dynamometer Speed and Load Control System6.2.2Intake Air Supply System6.2.3Exhaust System6.2.4Fuel Supply System6.2.5Engine Control Calibration6.2.6Ignition System6.2.7Engine Coolant System6.2.8External Oil System6.2.9Temperature Measurement Equipment and Locations6.2.10Pressure Measurement E
9、quipment and Locations6.2.11Flow Measurement Equipment and Locations6.2.12Speed and Load Measurement Equipment and Locations6.2.13Exhaust Emissions Measurement Equipment and Location6.2.14DPFE(EGR)Voltage Measurement Equipment and Location6.2.15Ignition Timing Measurement Equipment and Location6.2.1
10、6Test Engine Hardware6.3Test Engine Parts6.3.1New Parts Required6.3.2Reusable Engine Parts6.3.3Special Measurement and Assembly Equipment6.4Reagents and Materials7Hazards8Reference Fuel9Preparation of Apparatus10Test Stand Preparation10.1Engine Block Preparation10.2Preparation of Miscellaneous Engin
11、e Components10.3Cylinder Head Preparation10.4Cylinder Head Assembly10.5Cylinder Head Installation10.6Final Engine Assembly10.7Calibration11Test Stand Calibration11.1Instrumentation Calibration11.2Procedure12Pretest Procedure12.1Engine Operating Procedure12.2Periodic Measurements and Functions12.3End
12、 of Test Procedures12.4Determination of Test Results13Post-Test Intake Valve Weighing Procedure13.1Photographs of PartsGeneral13.2Induction System Rating13.3Determination of Test Validity-Engine Conformance13.4Report14Precision and Bias15Keywords161This test method is under jurisdiction of ASTM Comm
13、ittee D02 on PetroleumProducts,Liquid Fuels,and Lubricants and is the direct responsibility of Subcom-mittee D02.A0.01 on Gasoline and Gasoline-Oxygenate Blends.Current edition approved Oct.1,2014.Published November 2014.Originallyapproved in 1997.Last previous edition approved in 2009 as D6201 04(2
14、009).DOI:10.1520/D6201-04R14.2Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR:D02-1453.3ASTM Test Monitoring Center(TMC),6555 Penn Avenue,Pittsburgh,PA15206-4489.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West
15、 Conshohocken,PA 19428-2959.United States1 SubjectSectionAnnexesDetailed Specifications and Photographs of ApparatusAnnex A1Engine Part Number ListingAnnex A2Statistical Equations for Mean and Standard DeviationAnnex A32.Referenced Documents2.1 ASTM Standards:4D86 Test Method for Distillation of Pet
16、roleum Products atAtmospheric PressureD235 Specification for Mineral Spirits(Petroleum Spirits)(Hydrocarbon Dry Cleaning Solvent)D287 Test Method for API Gravity of Crude Petroleum andPetroleum Products(Hydrometer Method)D381 Test Method for Gum Content in Fuels by Jet Evapo-rationD525 Test Method for Oxidation Stability of Gasoline(In-duction Period Method)D873 Test Method for Oxidation Stability of Aviation Fuels(Potential Residue Method)D1266 Test Method for Sulfur in Petroleum Products(LampM