SAE J1589-1998 Internal Combustion Engines.Piston Rings—Inspection Measuring Principles.pdf
《SAE J1589-1998 Internal Combustion Engines.Piston Rings—Inspection Measuring Principles.pdf》由会员分享,可在线阅读,更多相关《SAE J1589-1998 Internal Combustion Engines.Piston Rings—Inspection Measuring Principles.pdf(25页珍藏版)》请在三一文库上搜索。
1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefr
2、om, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. QUESTIONS REGARDING THIS DOCUMENT: (724) 772-8512 FAX: (724) 776-0243 TO PLACE A DOCU
3、MENT ORDER; (724) 776-4970 FAX: (724) 776-0790 SAE WEB ADDRESS http:/www.sae.org Copyright 1998 Society of Automotive Engineers, Inc. All rights reserved.Printed in U.S.A. SURFACE VEHICLE 400 Commonwealth Drive, Warrendale, PA 15096-0001 STANDARD Submitted for recognition as an American National Sta
4、ndard J1589 REAF. APR1998 Issued1990-01 Reaffirmed1998-04 Superseding J1589 OCT92 Internal Combustion EnginesPiston RingsInspection Measuring Principles 1.ScopeDifferences, where they exist, are shown in Appendix A. This SAE Standard defines the measuring principles to be used for measuring piston r
5、ings. It applies to piston rings up to and including 200 mm diameter for reciprocating combustion engines. These inspection measuring principles may also be used for piston rings for compressors working under analogous conditions. 2.References SAEISO1 DESIGNATION EQUIVALENT INTERNAL COMBUSTION ENGIN
6、ESPISTON RINGS SAE J15886621-1Vocabulary SAE J15896621-2Measuring principles SAE J15906621-3Material specifications SAE J15916621-4General specifications SAE J19966621-5Quality requirements INTERNAL COMBUSTION ENGINESPISTON RINGS SAE J19976621-1Rectangular rings SAE J19986622-2 TR Rectangular rings
7、with narrow ring width SAE J19996623INTERNAL COMBUSTION ENGINESPISTON RINGSSCRAPER RINGS INTERNAL COMBUSTION ENGINESPISTON RINGS SAE J20006624-1Keystone rings SAE J20016624-2 TR Half keystone rings 1.TR refers to Technical Report SAE J1589 Reaffirmed APR1998 -2- SAE J20026625INTERNAL COMBUSTION ENGI
8、NESPISTON RINGSOIL CONTROL RINGS SAE J20036625INTERNAL COMBUSTION ENGINESPISTON RINGSCOIL SPRING LOADED OIL CONTROL RINGS SAE J20046627 TRINTERNAL COMBUSTION ENGINESPISTON RINGSEXPANDER/ SEGMENT OIL CONTROL RINGS SAE J2226INTERNAL COMBUSTION ENGINESPISTON RINGSSTEEL RECTANGULAR RINGS ISO 286ISO SYST
9、EM OF LIMITS AND FITS 3.Measuring Principles 3.1General Measuring ConditionsThe following general notes are applicable to all measuring principles unless otherwise specified: a.The ring shall rest on the datum surface in the free or open condition. No additional force shall be applied to load the ri
10、ng on the datum surface. b.Certain measurements are made with the ring in the closed condition in a gauge of nominal cylinder bore diameter. When orientated rings are measured in this way, they shall be so placed that the top is towards the datum surface. c.Measurements shall be made using instrumen
11、ts with a resolution not to exceed 10% of the tolerance of the dimension being measured SAE J1589 Reaffirmed APR1998 -3- 3.2Characteristics and Measuring Principles TABLE 1CHARACTERISTICS SubclauseCharacteristics of the RingRing Width Principal characteristics of the ring 3.2.1Ring Width a) parallel
12、 sided ringsh1 b) keystone ringsh3, a6 3.2.2Radial wall thicknessa1 3.2.3Total free gapm, p 3.2.4Closed gaps1 3.2.5Tangential forceFt 3.2.6Diametral forceFd Characteristics of ring shape 3.2.7Ovality or circularityU 3.2.8Point deflectionW 3.2.9Light tightness Associated with peripheral surface 3.2.1
13、0Taper on periphery 3.2.11Barrel on peripheryt2, t3, h8 3.2.12Land widthh4, h5 3.2.13Land offset 3.1.14Coating/inlay thickness Associated with sides 3.2.15Keystone angle 3.2.16Obliqueness 3.2.17Twist 3.2.18UnevennessTer, Teu Other 3.2.19Helix (axial displacement of butt ends) 3.2.20Free flatness 3.2
14、.21Surface roughnessRa, Rz SAE J1589 Reaffirmed APR1998 -4- TABLE 2MEASURING PRINCIPLES TermDefinitionMeasuring PrinciplesIlustration of measuring principles 3.2.1 Ring width (in millimeters) a) Parallel sided rings, h1The distance between the sides, at any particular point perpendicular to the datu
15、m surface (see Figures 1 and 2). Measure with spherical measuring probes each of radius 1,5 0,05 mm, exerting a measuring force of approximately 1 N (see Figure 3). In the case of slotted oil rings, the measurement shall be made between the slots and not across them (see Figure 2). FIGURE 1 FIGURE 2
16、 FIGURE 3 SAE J1589 Reaffirmed APR1998 -5- b) Keystone rings, h3 The distance between the sides at a specified distance a6 from the peripheral surface (see Figure 4). a) Method A This method determines h3 (see Figure 4) for a specified value of a6. Measure with speherical measuring probes each of ra
17、dius 1,5 0,05 mm exerting a measuring force of approximately 1 N (see Figure 5). If the measuring equipment is set up with parallel gauges instead of keystone gauges the use of spherical measuring probes will give rise to an error as follows: for 6 keystone angle: 0,004 mm for 15 keystone angle: 0,0
18、26 mm. To obtain the correct measured width of the keystone ring the above values shall be deducted from the measured values. Values of a6 are given in ISO 6624/1. b) Method B This method determines a6 for a specified width h3 (see Figure 4). Measure with a flat face probe exerting a measuring force
19、 of approximately 1 N. The ring shall be placed between two sharp edged circular discs which are spaced apart at the specified gauge width h3 (see Figure 6). Values of h3 are given in ISO 6624/1. FIGURE 4h3 AND a6 FIGURE 5SPHERICAL MEASURING PROBES FIGURE 6FLAT FACE MEASURING PROBE TABLE 2MEASURING
20、PRINCIPLES (CONTINUED) TermDefinitionMeasuring PrinciplesIlustration of measuring principles SAE J1589 Reaffirmed APR1998 -6- 3.2.2 Radial wall thickness, a1 (in millimeters) The radial distance between the periphery and the inside surface of the ring (see Figure 7). a) Measure radially between a fl
21、at measuring surface on the periphery and a spherical measuring surface of radius approximately 4 mm on the inside surface, and using a measuring force of 3 to 10 N (see Figure 8). b) Measure radially between cylindrical inserts or rollers of radius approximately 4 mm and with a measuring force of 3
22、 to 10 N. The length of the rollers shall be greater than the ring width (see Figure 9). FIGURE 7a1 FIGURE 8METHOD a FIGURE 9METHOD b TABLE 2MEASURING PRINCIPLES (CONTINUED) TermDefinitionMeasuring PrinciplesIlustration of measuring principles SAE J1589 Reaffirmed APR1998 -7- 3.2.3 Total free gap m,
23、 p (in millimeters) The chordal distance between the butt ends of the ring in a free, unstressed state, measured at the centerline of the radial wall thickness (see Figure 10). For rings with an internal notch for a peg, the total free gap is defined by the chordal distance marked as p in Figure 11.
24、 Measure with a steel rule to the nearest 0,25 mm. FIGURE 10m AND a1 FIGURE 11p AND a1 3.2.4 Closed gap, s1 (in millimeters) The gap at the butt ends of the ring, measured at the narrowest point of the gap, which the ring would have when fitted in a gauge of nominal cylinder bore size (see Figure 12
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- SAE J1589-1998 Internal Combustion Engines.Piston RingsInspection Measuring Principles J1589 1998 Engines
链接地址:https://www.31doc.com/p-3678253.html