BS 5672-1991 Specification for designation of the direction of rotation and of cylinders and valves in cylinder heads and definition of right-hand and left-hand in-line engines and.pdf
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1、BRITISH STANDARD BS5672:1991 ISO1204:1990 Specification for Designation of the direction of rotation and of cylinders and valves in cylinder heads, and definition of right-hand and left-hand in-line engines and locations on an engine for reciprocating internal combustion enginesBS 5672:1991 This Bri
2、tishStandard, having been prepared under the directionof the Machinery and Components Standards Policy Committee, was published underthe authority of the Standards Board and comes intoeffect on 31May1991 BSI12-1999 First published January1979 Second edition May1991 The following BSI references relat
3、e to the work on this standard: Committee referenceMCE/14 Draft for comment89/75585DC ISBN 0 580 19638 0 Committees responsible for this BritishStandard The preparation of this BritishStandard was entrusted by the Machinery and Components Standards Policy Committee (MCE/-) to Technical Committee MCE
4、/14, upon which the following bodies were represented: Association of Consulting Engineers British Railways Board Ministry of Defence Society of Motor Manufacturers and Traders Limited The following bodies were also represented in the drafting of the standard, through subcommittees and panels: Assoc
5、iation of British Generating Set Manufacturers BEAMA Ltd. Health and Safety Executive Marine Engine and Equipment Manufacturers Association Amendments issued since publication Amd. No. Date CommentsBS 5672:1991 BSI 12-1999 i Contents Page Committees responsible Inside front cover National foreword i
6、i 1 Scope 1 2 Definitions of locations on an engine 1 3 Direction of rotation 2 4 Position of the observer 2 5 Designation of direction of rotation 3 6 Designation of the cylinders 3 7 Designation of the valves 6 8 Definition of right-hand and left-hand in-line engines 8 Figure 1 Locations on an eng
7、ine 1 Figure 2 Direction of rotation 2 Figure 3 Position of the observer 2 Figure 4 Position of observer for in-line engine 2 Figure 5 Position of observer for V-engines 3 Figure 6 Examples of the designation of cylinders of in-line engines 4 Figure 7 Typical multibank engine 4 Figure 8 Examples of
8、the designation of cylinders of engines with morethanone bank 5 Figure 9 Vertical crankshaft X-engine 6 Figure 10 Inlet valves near to observer, exhaust valves away from observer 6 Figure 11 Inlet valves at right, exhaust valves at left of observer 6 Figure 12 Examples of the application of the valv
9、e designation method 8 Figure 13 In-line engines with vertical cylinders 9 Figure 14 In-line engines with cylinders other than vertical 10 Publication(s) referred to Inside back coverBS 5672:1991 ii BSI 12-1999 National foreword This BritishStandard has been prepared under the direction of the Machi
10、nery and Components Standards Policy Committee and is identical with ISO1204:1990 “Reciprocating internal combustion engines Designation of the direction of rotation and of cylinders and valves in cylinder heads, and definition of right-hand and left-hand in-line engines and locations on an engine”,
11、 published by the International Organization for Standardization (ISO). This revision of BS5672 supersedes BS5672:1979, which is withdrawn. This revision also incorporates the content of BS5673:1979, BS5674:1979 and BS5675:1979, each of which is withdrawn. A British Standard does not purport to incl
12、ude all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages
13、i andii, pages1 to10, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS 5672:1991 BSI 12-1999 1 1 Scope This InternationalStandard specifies m
14、ethods of designating the direction of rotation and the cylinders of reciprocating internal combustion engines and of designating a specific valve in a cylinder head when the cylinder head is mounted on the engine or dismantled. It defines right-hand and left-hand in-line reciprocating internal comb
15、ustion engines and locations on a reciprocating internal combustion engine so that the position of equipment on the engine can be described. It applies to reciprocating internal combustion engines for land, rail-traction and marine use, excluding engines used to propel agricultural tractors, road ve
16、hicles and aircraft. It may by applied to engines used to propel road-construction and earth-moving machines, industrial trucks and for other applications where no suitable InternationalStandard for these engines exists. 2 Definitions of locations on an engine For the purposes of this InternationalS
17、tandard, the following definitions apply (seeFigure 1). NOTE 1For the position of the observer, seeclause4. 2.1 driving end the portion of the engine which is substantially nearest to the observer 2.2 free end the portion of the engine which is substantially most remote from the observer 2.3 left si
18、de the portion of the engine which is substantially on the left of the engine as viewed by the observer 2.4 right side the position of the engine which is substantially on the right of the engine as viewed by the observer 2.5 top the portion of the engine which is substantially at the top of the eng
19、ine as viewed by the observer 2.6 bottom the portion of the engine which is substantially at the bottom of the engine as viewed by the observer NOTE 2In the case of an engine with a vertical driving shaft, it is not possible to determine the left side, right side, top and bottom. The definition of d
20、riving end only may be used and other locations must be described by the manufacturer by reference to easily identifiable components. 2.7 operating side the portion of the engine where the engine is started, controlled during the operation and stopped 2.8 exhaust side the portion of the engine where
21、 the exhaust manifold is located Figure 1 Locations on an engineBS5672:1991 2 BSI 12-1999 3 Direction of rotation The direction of rotation is illustrated in Figure 2. NOTE 3The direction of rotation of a reciprocating internal combustion engine is the direction of rotation of the shaft which provid
22、es the engine driving shaft extremity, as viewed from the position of the observer defined in4.1.1. 4 Position of the observer 4.1 Designation of direction of rotation and of cylinders The position and direction of view of the observer when designating the direction of rotation and the cylinders, an
23、d when defining in-line engines as right-hand or left-hand and the locations on an engine shall be as given in4.1.1 to4.1.3. 4.1.1 The position of the observer in relation to an engine is considered to be a extension of the axis of the shaft which provides the driving extremity, the observer directi
24、ng his view towards this shaft extremity along the arrowV (seeFigure 3). This position applies equally to an engine with an integral (built-in) reversing gear with or without speed variation, and to an engine with an integral (built-in) gear with or without speed variation. The position of the obser
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