【国外标准】 Standard Test Method for Determination of Timing-Chain Wear in a Turbocharged, Direct-Injection, Spark-Ignition, Four-Cylinder Engine
本网站 发布时间:
2024-02-28
开通会员免费在线看70000余条国内标准,赠送文本下载次数,单本最低仅合13.3元!还可享标准出版进度查询、定制跟踪推送、标准查新等超多特权!  
查看详情>>
标准简介
适用范围:
5.1 This test method evaluates an automotive engine oil's lubricating efficiency in inhibiting timing-chain lengthening under operating conditions selected to accelerate timing-chain wear. Varying quality reference oils of known wear performance were used in developing the operating conditions of the test procedure.5.2 The test method can be used to screen lubricants for satisfactory lubrication of an engine timing chain and has application in gasoline, automotive, engine-oil specifications. It is expected to be used in specifications and classifications of engine lubricating oils, such as the following:5.2.1 ILSAC GF-6.5.2.2 Specification D4485.5.2.3 SAE Classification J183.1.1 Undesirable timing-chain wear has been observed with gasoline, turbocharged, direct-injection (GTDI) engines in field service, and data from correlating laboratory engine tests have shown that chain wear can be affected by appropriately formulated engine lubricating. A laboratory engine test has been developed to provide a means for screening lubricating oils for that specific purpose. The laboratory engine test is 216 h in length, conducted under varying conditions, and the increase in timing-chain length determined at the end of test is the primary result. This test method is commonly known as the Sequence X, Chain Wear (CW) Test.1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.1.2.1 Exception—Where there is no direct SI equivalent such as screw threads, national pipe threads/diameters, tubing size, or specified single source equipment.1.3 Table of Contents: Section 1Referenced Documents 2Terminology 3Summary of Test Method 4 5Apparatus 6 Test Engine 6.1Reagents and Materials 7Preparation of Apparatus 8 Timing-chain Preparation, Installation, and Measurement 8.20 Test Stand Installation 8.21 Electronic Throttle Controller 8.21.17 Temperature Measurement 8.23 Pressure Measurement 8.24 Flowrate Measurement 8.25 Blowby Flowrate 8.26Stand Calibration 9Test Procedure 10 Pre-Test Procedure and Engine Break-In 10.1 Engine Start-up Procedures 10.2 Test Sequence 10.3 Engine Shutdown Procedures 10.4 Blowby Flowrate Measurement 10.5 Parameter Logging 10.6 Oil Consumption Calculation 10.7 General Maintenance 10.8 Special Maintenance Procedures 10.9 Blowby Flowrate Adjustment 10.10Diagnostic Data Review 11Test Results 12Report 13Precision and Bias 14Keywords 15ANNEXES ASTM TMC Organization Annex A1ASTM TMC: Calibration Procedures Annex A2ASTM TMC: Maintenance Activities Annex A3ASTM TMC: Related Information Annex A4Engine and Stand Parts Annex A5Safety Precautions Annex A6Engine Rebuild Templates Annex A7Engine Build Records Annex A8Cylinder Head Build A8.1Cylinder Bore Measurement A8.2Bearing Journal Measurements A8.3Engine Part Photographs, Schematics and Figures Annex A9Control and Data Acquisition Requirements Annex A10Dipstick Oil Level to Charge Conversions Annex A11Sequence X Report Forms and Data Acquisition Annex A12APPENDIXES Sources of Materials and Information Appendix X1Suggested Designs for Engine Fixing Brackets Appendix X21.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
标准号:
ASTM D8279-23a
标准名称:
Standard Test Method for Determination of Timing-Chain Wear in a Turbocharged, Direct-Injection, Spark-Ignition, Four-Cylinder Engine
英文名称:
Standard Test Method for Determination of Timing-Chain Wear in a Turbocharged, Direct-Injection, Spark-Ignition, Four-Cylinder Engine标准状态:
Active-
发布日期:
-
实施日期:
出版语种:
- 其它标准
- 上一篇: ASTM D8278-20 Standard Specification for Digital Contact Thermometers for Test Methods Measuring Flow Properties of Fuels and Lubricants
- 下一篇: ASTM D8280-20a Standard Test Method for Determination of the Blooming of Brominated Flame Retardants onto the Surface of Plastic Materials by Ion Chromatography
- 推荐标准
- 国家标准计划
- 24/30491443 DC standard
- 24/30489392 DC BS EN IEC 62358 Ferrite cores. Standard inductance factor for gapped cores and its tolerance
- BS ISO 19848:2024 - TC Tracked Changes. Ships and marine technology. Standard data for shipboard machinery and equipment
- BS ISO 19848:2024 Ships and marine technology. Standard data for shipboard machinery and equipment
- 24/30487130 DC BS EN 50566:2017/A2:2024 Product standard to demonstrate the compliance of wireless communication
- BS IEC 61360-7:2024 Standard data element types with associated classification scheme
- 24/30486472 DC - Product standard
- KS M ISO 4259-4 석유 및 관련 제품 — 측정 방법과 결과의 정밀도 — 제4부: 개별 실험실에서 표준 시험방법의 실행에 대한 ‘통계적 관리’ 상태를 확인하기 위한 통계적 관리도의 사용
- KS C IEC 61340-4-7 정전기학 — 제4-7부: 구체적 적용 분야에 대한 표준 시험방법 — 이온화
- KS C IEC 61340-4-8 정전기학 — 제4-8부: 구체적 적용 분야에 대한 표준 시험방법 — ESD 차폐성 — 봉투
- KS C IEC 61340-4-6 정전기학 — 제4-6부: 구체적 적용 분야에 대한 표준 시험방법 — 손목접지대
- 24/30485973 DC standard
- BS EN 14662-1:2023 - TC Tracked Changes. Ambient air quality. Standard method for measurement of benzene concentrations
- KS C IEC 61837-2 주파수 제어 및 선택을 위한 표면 실장형 압전 장치 — 표준 아웃라인 및 단자 리드 연결 — 제2부: 세라믹 함체
- 24/30485462 DC BS EN IEC 61753-1 Fibre optic interconnecting devices and passive components - Performance standard