SAE J 1510-2017 Lubricants for Two-Stroke-Cycle Gasoline Engines.pdf
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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 ther
2、efrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2017 SAE International All rights reserved. No part of this
3、publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-49
4、70 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/J1510_201705 SURFACE VEHICLE RECOMMENDED PRACTICE J1510 MAY2017 Issued 1985-03 Reaffirmed 2001
5、-11 Revised 2017-05 Superseding J1510 NOV2001 Lubricants for Two-Stroke-Cycle Gasoline Engines RATIONALE This document has been revised to include the removal of the reference to a 1987 version of ASTM D4682 and to delete a paragraph about ongoing work which has been stopped. 1. SCOPE The informatio
6、n in this SAE Recommended Practice has been compiled by Technical Committee 1 (Engine Lubrication) of the SAE Fuels and Lubricants Division. The intent is to provide those concerned with the design and maintenance of two-stroke-cycle engines with a better understanding of the properties of two-strok
7、e-cycle lubricants. Reference is also made to test procedures which may be used to measure the chemical and physical characteristics of these lubricants. 2. REFERENCES 2.1 Applicable Publications The following publications form a part of this specification to the extent specified herein. Unless othe
8、rwise indicated, the latest issue of SAE publications shall apply. 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. SAE J1536 Two-Stroke-Cycle Engine Oi
9、l Fluidity/Miscibility Classification 2.1.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM D93 Test Methods for Flash Point by Pensky-Martens Closed Tester ASTM D874 Test Method for Su
10、lfated Ash from Lubricating Oils and Additives SAE INTERNATIONAL J1510 MAY2017 Page 2 of 4 ASTM D3607 Method for Removing Volatile Contaminants from Used Engine Oils by Stripping ASTM D4682 Specification for Miscibility with Gasoline and the Fluidity of Two-Stroke-Cycle Gasoline Engine Lubricants 3.
11、 LUBRICANT CLASSIFICATION At the present time, two-stroke-cycle engine and lubricant manufacturers use a variety of engine and bench tests to define lubricant performance. For example, for several years the National Marine Manufacturers Association (NMMA) has been approving oils for water-cooled, tw
12、o-stroke-cycle outboard engines. Products with this approval bear a NMMA TC-W3 or TC-W IIlogo. 4. ENGINE APPLICATIONS Two-stroke-cycle engines are used in many applications with a broad range of specific power outputs. Water-cooled outboard engines with displacements to 4000 cc are not uncommon. At
13、the other end of the scale are air-cooled engines for power tools, with displacements of 30 cc or less. In between are engines with various displacements and specific outputs. Typically, they are used to power motorbikes, lawn mowers, motorcycles, small tractors, chainsaws and other hand-held equipm
14、ent, portable generators or pumps, snowmobiles, personal watercraft, etc. 5. LUBRICATION SYSTEMS Two approaches to two-stroke-cycle engine lubrication are common: a. Pre-mixing, in which the lubricant is added to the fuel either in the fuel tank or before it is put in the fuel tank b. Injection, in
15、which the lubricant is metered directly into the intake manifold or other points using a pump that is controlled by engine speed and/or throttle setting or where the lubricant is metered into the gasoline between the fuel tank and the engine Use of oil injection systems is increasing. In addition to
16、 being more convenient, the injection system optimizes lubricant delivery rates over varying power and speed ranges. 6. FUEL:OIL RATIOS The ratio of fuel to oil depends on the engine, the application, and the lubricant. A fuel-to-oil ratio of 50:1 is often specified by both engine manufacturers and
17、lubricant marketers for oils such as those used in large outboard engines. However, higher ratios, for example, 100:1, are sometimes recommended. Ratios as low as 16:1 are sometimes specified for use in air-cooled engines. Variable ratios are characteristic of lube-injection systems. In one lube-inj
18、ected snowmobile, for example, the ratio varies from 100:1 at idle to 24:1 at wide open throttle (WOT). 7. LUBRICANT ROLE Two-stroke-cycle gasoline engines typically utilize “once through” lubrication. In any application, the lubricant is expected to protect the engine from wear, scuffing, ring stic
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