SAE J2053-1994 BRAKE MASTER CYLINDER PLASTIC RESERVOIR ASSEMBLY FOR ROAD VEHICLES.pdf
《SAE J2053-1994 BRAKE MASTER CYLINDER PLASTIC RESERVOIR ASSEMBLY FOR ROAD VEHICLES.pdf》由会员分享,可在线阅读,更多相关《SAE J2053-1994 BRAKE MASTER CYLINDER PLASTIC RESERVOIR ASSEMBLY FOR ROAD VEHICLES.pdf(9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 1994 Society of Automotive Engineers, Inc. All rights reserved.Printed in U.S.A. SURFACE VEHICLE 400 Commonwealth Drive, Warrendale, PA 15096-0001 RECOMMENDED PRACTICE Submitted for recognition as an American
4、National Standard J2053 ISSUED JUN94 Issued1994-06 BRAKE MASTER CYLINDER PLASTIC RESERVOIR ASSEMBLY FOR ROAD VEHICLES ForewordThis Document has not been changed other than to put it into the new SAE Technical Standards Board Format. 1.ScopeThis SAE Recommended Practice specifies the performance test
5、 procedures and requirements of a plastic reservoir assembly suitable for use on a Hydraulic Brake Master Cylinder (reference SAE J1153). Intended usage is for on-road vehicles using brake fluid conforming to FMVSS-116 (DOT 3), and SAE J1703 specifications. This document includes the cap/cover and d
6、iaphragm as integral parts of the reservoir assembly. The fluid level sensor (FLS) is also included as an integral part of the assembly. However, additional FLS standards and/or requirements are applicable and necessary which are not covered in this document. 1.1PurposeThis document is intended to p
7、rovide a recommended practice and minimum performance requirements of current established designs on those reservoir assemblies generally used by individual manufacturers which have demonstrated satisfactory field performance. This document is applicable to new reservoir assemblies for commercial or
8、 aftermarket production. 2.References 2.1Applicable PublicationsThe following publications form a part of this specification to the extent specified herein. The latest issue of SAE publications shall apply. 2.1.1SAE PUBLICATIONSAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001. S
9、AE J1153Hydraulic Master Cylinders for Motor Vehicle BrakesTest Procedure SAE J1703Motor Vehicle Brake Fluid 2.1.2ASTM PUBLICATIONAvailable from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959. ASTM D 570Test Method for Water Absorption of Plastics 2.1.3FEDERAL SAFETY STANDARDSAvailabl
10、e from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402. FMVSS 105Hydraulic Brake Systems FMVSS 116Motor Vehicle Hydraulic Brake Fluids SAE J2053 Issued JUN94 -2- 3.General Requirements 3.1The reservoir assembly is used on a brake master cylinder assembly locate
11、d in the underhood compartment environment which must meet SAE J1153 requirements. 3.2Must be functional between 40 and 120 C (40 to 248 F) and during typical motion of an installed master cylinder. 3.3Must be functional during typical brake apply and release pressures. 3.4Must be capable of withsta
12、nding exterior contact from other underhood fluids, greases, and vapors, humidity, road salts, water, and assembly materials. 3.5Reservoir assembly must be compatible with the intended usage type brake fluids. 3.6Reservoir assembly must be compatible with the intended vehicle master cylinder assembl
13、y and service usage bleed or fill operations. 3.7Reservoir assembly must meet or exceed applicable government requirements such as FMVSS 105. 3.8Reservoir assembly must be capable of the intended shipping, handling, assembly to the master cylinder, test and other appropriate processing methods witho
14、ut damage. 4.Material, Quality, and Identification 4.1CompositionShall be manufactured in accordance with applicable Material Specifications to meet this part specification. 4.2DimensionParts shall conform to all respects to the requirements of the drawing, including dimensional stability requiremen
15、ts. 4.3QualityPart shall be uniform in quality and be free from splay, blisters, voids, burn marks, foreign material, and other imperfections. 4.4MarkingThe identification mark of the manufacturer and date of manufacture should be embossed in or on the reservoir in a visible area. 5.Test Method Acce
16、ptance Requirements 5.1Leakage Test Method 5.1.1Using a minimum of three master cylinder assemblies with the attached plastic reservoir and FLS, if applicable, conduct the following leakage tests. If reservoir assembly is intended for original equipment usage, use factory fill pressures, otherwise u
17、se the pressures as specified in this procedure. Install appropriate filling or bleed type apparatus head to reservoir as required. Equipment should be capable of providing hydraulic pressure to 448 kPa (65 psi). Plug master cylinder outlets. 5.1.2Apply hydraulic pressure at a rate of 80 kPa 7 kPa (
18、12 psi 1 psi) per second to 414 to 448 kPa (60 to 65 psi) and hold for 1 min. Measure leakage in cubic centimeters (cc). SAE J2053 Issued JUN94 -3- 5.2Leakage Test Requirements 5.2.1Leakage not to exceed 1 cc maximum. 5.2.2Reservoir shall not crack or tear. 5.3Fluid Expansion Test Method 5.3.1Using
19、a master cylinder assembly with cap/cover, plug the master cylinder outlets. Mount at vehicle installation position (i.e., 15 degrees from horizontal). Fill and bleed with appropriate brake fluid to maximum specified fill mark at room temperature. Expose to 120 C 3 C (248 F 5 F) for 30 to 35 min. Me
20、asure the new level of fluid while at 120 C 3 C (248 F 5 F). 5.4Fluid Expansion Requirements 5.4.1The fluid level while at 120 C 3 C (248 F 5 F) shall not touch the diaphragm, cover, or cap. NOTEThis is a design intent test to provide air space above the fluid for expansion due to temperature. Typic
21、ally this is 10 to 15% air volume space above the maximum fill mark (8% per 100 C). Air space allowance minimizes cosmetic leakage and excess pressure buildup which could result in brake drag. 5.5Fluid Capacity Test Method 5.5.1Using a master cylinder or equivalent fixture to attach the reservoir, m
22、ount at designed angle, plug outlets, and fill and bleed reservoir with appropriate brake fluid to the specified full mark. 5.5.2Allow fluid to drain out of front reservoir chamber to the bottom of the plastic reservoir (do not include any fluid contained in the master cylinder or fixture). Record a
23、mount of fluid drained. 5.5.3Measure remaining fluid which can be drained from rear reservoir chamber (to bottom of plastic reservoir). 5.5.4Refill reservoir to specified full mark. 5.5.5Allow fluid to drain from rear reservoir chamber and record amount of fluid drained (to bottom of plastic reservo
24、ir). 5.5.6Measure the remaining fluid which can be drained out of front reservoir chamber (to bottom of plastic reservoir). 5.5.7Determine common fluid by subtracting amount found in 5.5.6 from amount found from 5.5.2. 5.6Fluid Capacity Requirement 5.6.1Volumes recorded must exceed minimum values sp
- 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 J2053-1994 BRAKE MASTER CYLINDER PLASTIC RESERVOIR ASSEMBLY FOR ROAD VEHICLES J2053 1994
链接地址:https://www.31doc.com/p-3678281.html