J92 机体与运动件 标准查询与下载

ISO 6623:2004 内燃机.活塞环.铸铁刮环

This International Standard specifies the essential dimensional features of scraper rings made of cast iron, types N, NM, E and EM, having diameters of from 30 mm up to and including 200 mm, used in reciprocating internal combustion engines. It is also applicable to piston rings of compressors working under similar conditions.

Internal combustion engines - Piston rings - Scraper rings made of cast iron

BS ISO 6621-2:2003 内燃机.活塞环.检验测量规则

This part of ISO 6621 specifies the principles to be used in the measuring for inspection purposes of piston rings for both reciprocating internal combustion engines and compressors working under analogous conditions. It is applicable to all such rings of a diameter ≤ 200 mm.

Internal combustion engines - Piston rings - Inspection measuring principles

BS ISO 6621-2:2004 内燃机.活塞环.检验测量规则

This part of ISO 6621 specifies the principles to be used in the measuring for inspection purposes of piston rings for both reciprocating internal combustion engines and compressors working under analogous conditions. It is applicable to all such rings of a diameter ≤ 200 mm.

Internal combustion engines - Piston rings - Inspection measuring principles

ASTM G181-04 在润滑条件下进行活塞环和缸衬材料摩擦试验的标准实施规程

The efficiency and fuel economy of spark ignition and diesel engines is affected in part to the friction between moving parts. Although no reliable, in situ friction measurements exist for fired internal combustion engines, it has been estimated that at least half of the friction losses in such engines are due to those at the ring and liner interface. This practice involves the use of a reciprocating sliding arrangement to simulate the type of oscillating contact that occurs between a piston ring and its mating cylinder bore surface near the top-dead-center position in the cylinder where most severe surface contact conditions occur. There are many types of engines and engine operating environments; therefore, to allow the user the flexibility to tailor this test to conditions representative of various engines, a practice is considered more appropriate than a standard test method in which specific test parameters are prescribed. Variables that can be adjusted in this procedure include: normal force, speed of oscillation, stroke length, duration of testing, temperature of testing, method of specimen surface preparation, and the materials and lubricants to be evaluated. Guidance is provided here on the set-up of the test, the manner of specimen fixturing and alignment, the selection of a lubricant to simulate conditioned oil characteristics (for a diesel engine), and the means to run-in the ring specimens to minimize variability in test results. Engine oil spends the majority of its operating lifetime in a state that is representative of use-conditioned oil. That is, fresh oil is changed by exposure to the heat, chemical environment, and confinement in lubricated contact. It ages, changing viscosity, atomic weight, solids content, acidity, and chemistry. Conducting piston ring and cylinder liner material evaluations in fresh, non-conditioned oil is therefore unrealistic for material screening. But additive-depleted, used oil can result in high wear and corrosive attack of engine parts. The current test is intended for use with lubricants that simulate tribological behavior after in-service oil conditioning, but preceding the point of severe engine damage.1.1 This practice covers procedures for conducting laboratory bench-scale friction tests of materials, coatings, and surface treatments intended for use in piston rings and cylinder liners in diesel or spark-ignition engines. The goal of this procedure is to provide a means for preliminary, cost-effective screening or evaluation of candidate ring and liner materials. A reciprocating sliding arrangement is used to simulate the contact that occurs between a piston ring and its mating liner near the top-dead-center position in the cylinder where liquid lubrication is least effective, and most wear is known to occur. Special attention is paid to specimen alignment, running-in, and lubricant condition.1.2 This practice does not purport to simulate all aspects of a fired engines operating environment, but is intended to serve as a means for preliminary screening for assessing the frictional characteristics of candidate piston ring and liner material combinations in the presence of fluids that behave as use-conditioned engine oils. Therefore, it is beyond the scope of this practice to describe how one might establish correlations between the described test results and the frictional characteristics of rings and cylinder bore materials for specific engine designs or operating conditions.1.3 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Practice for Conducting Friction Tests of Piston Ring and Cylinder Liner Materials Under Lubricated Conditions

ASTM G181-04(2009) 在润滑条件下进行活塞环和缸衬材料摩擦试验的标准实施规程

The efficiency and fuel economy of spark ignition and diesel engines is affected in part to the friction between moving parts. Although no reliable, in situ friction measurements exist for fired internal combustion engines, it has been estimated that at least half of the friction losses in such engines are due to those at the ring and liner interface. This practice involves the use of a reciprocating sliding arrangement to simulate the type of oscillating contact that occurs between a piston ring and its mating cylinder bore surface near the top-dead-center position in the cylinder where most severe surface contact conditions occur. There are many types of engines and engine operating environments; therefore, to allow the user the flexibility to tailor this test to conditions representative of various engines, a practice is considered more appropriate than a standard test method in which specific test parameters are prescribed. Variables that can be adjusted in this procedure include: normal force, speed of oscillation, stroke length, duration of testing, temperature of testing, method of specimen surface preparation, and the materials and lubricants to be evaluated. Guidance is provided here on the set-up of the test, the manner of specimen fixturing and alignment, the selection of a lubricant to simulate conditioned oil characteristics (for a diesel engine), and the means to run-in the ring specimens to minimize variability in test results. Engine oil spends the majority of its operating lifetime in a state that is representative of use-conditioned oil. That is, fresh oil is changed by exposure to the heat, chemical environment, and confinement in lubricated contact. It ages, changing viscosity, atomic weight, solids content, acidity, and chemistry. Conducting piston ring and cylinder liner material evaluations in fresh, non-conditioned oil is therefore unrealistic for material screening. But additive-depleted, used oil can result in high wear and corrosive attack of engine parts. The current test is intended for use with lubricants that simulate tribological behavior after in-service oil conditioning, but preceding the point of severe engine damage.1.1 This practice covers procedures for conducting laboratory bench-scale friction tests of materials, coatings, and surface treatments intended for use in piston rings and cylinder liners in diesel or spark-ignition engines. The goal of this procedure is to provide a means for preliminary, cost-effective screening or evaluation of candidate ring and liner materials. A reciprocating sliding arrangement is used to simulate the contact that occurs between a piston ring and its mating liner near the top-dead-center position in the cylinder where liquid lubrication is least effective, and most wear is known to occur. Special attention is paid to specimen alignment, running-in, and lubricant condition. 1.2 This practice does not purport to simulate all aspects of a fired engine’s operating environment, but is intended to serve as a means for preliminary screening for assessing the frictional characteristics of candidate piston ring and liner material combinations in the presence of fluids that behave as use-conditioned engine oils. Therefore, it is beyond the scope of this practice to describe how one might establish correlations between the described test results and the frictional characteristics of rings and cylinder bore materials for specific engine designs or operating conditions. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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 and health practices and determine the app......

Standard Practice for Conducting Friction Tests of Piston Ring and Cylinder Liner Materials Under Lubricated Conditions

BS ISO 6622-1:2003 内燃机.活塞环.铸铁制矩形环

This part of ISO 6622 specifies the essential dimensional features of rectangular rings made of cast iron, Types R, B, BA and M, having diameters up to and including 200 mm, used in reciprocating internal combustion piston engines. It is also applicable to piston rings of compressors working under similar conditions.

Internal combustion engines - Piston rings - Rectangular rings made of cast iron

BS ISO 6624-2:2003 内燃机.活塞环.铸铁制半梯形环

This part of ISO 6624 specifies the essential dimensional features of half keystone rings made of cast iron, types HK and HKB, having diameters of from 38 mm up to and including 160 mm, used in reciprocating internal combustion piston engines.

Internal combustion engines - Piston rings - Half keystone rings made of cast iron

BS ISO 6621-4:2003 内燃机.活塞环.一般规范

This part of ISO 6621 specifies the general characteristics of piston rings for both reciprocating internal combustion engines and compressors (the individual dimensional criteria for these rings are given in the relevant International Standards). It also provides a system for ring coding, designation and marking, It is applicable to all such rings of a diameter ≤ 200 mm.

Internal combustion engines - Piston rings - General specifications

BS ISO 6624-4:2003 内燃机.活塞环.钢制半梯形环

This part of ISO 6624 specifies the essential dimensional features of half keystone rings made of steel, types HK and HKB, having diameters of from 38 mm up to and including 160 mm, used in reciprocating internal combustion piston engines.

Internal combustion engines - Piston rings - Half keystone rings made of steel

ISO 6622-1:2003 内燃机.活塞环.第1部分:矩形铸铁环

This part of ISO 6622 specifies the essential dimensional features of rectangular rings made of cast iron, Types R, B, BA and M, having diameters up to and including 200 mm, used in reciprocating internal combustion piston engines. It is also applicable to piston rings of compressors working under similar conditions.

Internal combustion engines - Piston rings - Part 1: Rectangular rings made of cast iron

ISO 6621-2:2003 内燃机.活塞环.第2部分:检验测量规则

This part of ISO 6621 specifies the principles to be used in the measuring for inspection purposes of piston rings for both reciprocating internal combustion engines and compressors working under analogous conditions. It is applicable to all such rings of a diameter ≤ 200 mm.

Internal combustion engines - Piston rings - Part 2: Inspection measuring principles

ISO 6622-2:2003 内燃机.活塞环.第2部分:矩形钢环

This part of ISO 6622 specifies the essential dimensional features of rectangular rings made of steel, types R, B, BA and M, having diameters of from 30 mm up to and including 160 mm, used in reciprocating internal combustion piston engines. It is also applicable to piston rings of compressors working under similar conditions.

Internal combustion engines - Piston rings - Part 2: Rectangular rings made of steel

ISO 6624-2:2003 内燃机.活塞环.第2部分:半梯形铸铁环

This part of ISO 6624 specifies the essential dimensional features of half keystone rings made of cast iron, types HK and HKB, having diameters of from 38 mm up to and including 160 mm, used in reciprocating internal combustion piston engines.

Internal combustion engines - Piston rings - Part 2: Half keystone rings made of cast iron

ISO 6624-4:2003 内燃机.活塞环.第4部分:半梯形钢环

This part of ISO 6624 specifies the essential dimensional features of half keystone rings made of steel, types HK and HKB, having diameters of from 38 mm up to and including 160 mm, used in reciprocating internal combustion piston engines.

Internal combustion engines - Piston rings - Part 4: Half keystone rings made of steel

ISO 6621-4:2003 内燃机.活塞环.第4部分:一般规范

This part of ISO 6621 specifies the general characteristics of piston rings for both reciprocating internal combustion engines and compressors (the individual dimensional criteria for these rings are given in the relevant International Standards). It also provides a system for ring coding, designation and marking, It is applicable to all such rings of a diameter ≤ 200 mm.

Internal combustion engines - Piston rings - Part 4: General specifications

ISO 6626-2:2003 内燃机.活塞环.第2部分:窄铸铁环带的螺旋撑簧油环

This part of ISO 6626 specifies the essential dimensional features of coil-spring-loaded oil control rings made of cast iron, types DSF-C, SSF, GSF, DSF and SSF-L. It is applicable to those piston rings in sizes 60 mm to 110 mm, inclusive, for reciprocating internal combustion engines, as well as to those for compressors working under analogous conditions.

Internal combustion engines - Piston rings -- Part 2 Coil-spring-loaded oil control rings of narrow width made of cast iron

ISO 6624-3:2001 内燃机 活塞环 第3部分：钢制梯形环

This part of ISO 6624 specifies the essential dimensional features of keystone rings made of steel, types T, TB, TBA, TM, K, KB, KBA and KM, having diameters of from 70 mm up to and including 160 mm, used in reciprocating internal combustion piston engines.

Internal combustion engines - Piston rings - Part 3: Keystone rings made of steel

ISO 6624-1:2001 内燃机 活塞环 第1部分：铸铁梯形环

This part of ISO 6624 specifies the essential dimensional features of keystone rings made of cast iron, types T, TB, TBA, TM, K, KB, KBA and KM, having diameters of from 70 mm up to and including 200 mm, used in reciprocating internal combustion piston engines.

Internal combustion engines - Piston rings - Part 1: Keystone rings made of cast iron

ASTM A983/A983M-01 中速柴油机用连续颗粒流动锻造碳和合金钢曲轴的标准规范

1.1 This specification covers continuous grain flow forged carbon and alloy steel crankshafts for medium speed diesel and natural gas engines.1.2 The steel used in the manufacture of the forgings is required to be vacuum degassed.1.3 Provision is made for treatment of designated surfaces of the crankshaft to provide enhanced fatigue strength, or wear resistance, or both.1.4 The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standards. Within the text and tables the SI units are shown in brackets. The values stated in each system are not exact equivalents, therefore each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.1.5 Unless the order specifies the applicable "M" specification designation, the material shall be furnished to the inch-pound units.1.6 Except as specifically required in this specification, all provisions of Specification A 788 apply.

Standard Specification for Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines

ISO 6621-3:2000 内燃机 活塞环 第3部分:技术规范

This part of ISO 6621 classifies materials intended for the manufacture of piston rings, based on their mechanical properties and the stresses the materials are capable of withstanding. This part of ISO 6621 is applicable to piston rings for reciprocating internal combustion engines up to and including those of 200 mm in diameter. It is also applicable to piston rings of compressors working under similar conditions.

Internal combustion engines - Piston rings - Part 3: Material specifications (Revision of ISO 6621-3:1983)