1、BS ISO22241-4:2009ICS 43.060.40NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDDiesel engines NOxreduction agent AUS 32Part 4: Refilling interfaceThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 August2009
2、BSI 2009ISBN 978 0 580 56384 3Amendments/corrigenda issued since publicationDate CommentsBS ISO 22241-4:2009National forewordThis British Standard is the UK implementation of ISO 22241-4:2009.The UK participation in its preparation was entrusted to TechnicalCommittee MCE/22, Engines for road vehicle
3、s.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom l
4、egal obligations.BS ISO 22241-4:2009Reference numberISO 22241-4:2009(E)ISO 2009INTERNATIONAL STANDARD ISO22241-4First edition2009-08-01Diesel engines NOx reduction agent AUS 32 Part 4: Refilling interface Moteurs diesel Agent AUS 32 de rduction des NOx Partie 4: Interface de remplissage BS ISO 22241
5、-4:2009ISO 22241-4:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing.
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8、address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2009 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either
9、 ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2009 All rights reservedBS ISO 22241-4:2009ISO 22
10、241-4:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Requirements 2 4.1 Functional requirements 2 4.2 Filler neck 4 4.3 Inlet adapter. 4 4.4 Filler cap 5 4.5 Filler nozzle . 6 4.6 Minimum free space for refilling
11、. 7 Annex A (informative) Compatibility conditions for sealed refilling systems . 10 Bibliography . 13 BS ISO 22241-4:2009ISO 22241-4:2009(E) iv ISO 2009 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO m
12、ember bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governm
13、ental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Dir
14、ectives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bo
15、dies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 22241-4 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcom
16、mittee SC 5, Engine tests. ISO 22241 consists of the following parts, under the general title Diesel engines NOx reduction agent AUS 32: Part 1: Quality requirements Part 2: Test methods Part 3: Handling, transportation and storing Part 4: Refilling interface BS ISO 22241-4:2009INTERNATIONAL STANDAR
17、D ISO 22241-4:2009(E) ISO 2009 All rights reserved 1Diesel engines NOx reduction agent AUS 32 Part 4: Refilling interface 1 Scope This part of ISO 22241 specifies the refilling interface for the NOx reduction agent AUS 32 in compliance with ISO 22241-1, which is needed to operate converters with a s
18、elective catalytic reduction (SCR) exhaust treatment system. This part of ISO 22241 specifies the minimum functional and geometric requirements of an open refilling system, in order to ensure compatibility between the on-board refilling system and the off-board refilling system. Compatibility condit
19、ions for a sealed refilling system are provided in Annex A. This part of ISO 22241 applies to commercial vehicles and buses as defined in ISO 3833 and having a gross vehicle mass of more than 3,5 t, designed to use stationary off-board refilling systems. This part of ISO 22241 also applies to the no
20、zzle of stationary off-board refilling systems. NOTE Throughout this part of ISO 22241, the term “NOx reduction agent AUS 32” is abbreviated as “AUS 32”. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the e
21、dition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2575, Road vehicles Symbols for controls, indicators and tell-tales ISO 22241-1, Diesel engines NOx reduction agent AUS 32 Part 1: Quality requirements ISO 22241-3, Die
22、sel engine NOx reduction agent AUS 32 Part 3: Handling, transportation and storing 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 refilling system off-board system and on-board system, including their refilling interface, for dispensing AUS
23、32 into the on-board tank of the vehicle (3.6) 3.2 off-board refilling system stationary equipment for dispensing AUS 32 into the on-board tank of the vehicle (3.6), consisting typically of tank, pump, hose and filler nozzle (3.2.1) BS ISO 22241-4:2009ISO 22241-4:2009(E) 2 ISO 2009 All rights reserv
24、ed3.2.1 filler nozzle interfacing part of the off-board refilling system (3.2), which allows the operator to control the flow of AUS 32 during the filling, consisting of a nozzle spout with a defined interface geometry and an automatic shut-off system 3.3 on-board refilling system equipment of the v
25、ehicle (3.6) necessary for refilling AUS 32 and consisting typically of an inlet adapter (3.3.2), filler neck (3.3.1), filler cap (3.3.3), and tank 3.3.1 filler neck interfacing part of the on-board refilling system (3.3) where the opening is formed by the inlet adapter (3.3.2) to allow the tank to
26、be refilled 3.3.2 inlet adapter permanently fixed part of the filler neck (3.3.1), having a defined interface geometry and incorporating a magnet ring for preventing misfiling of AUS 32 into the fuel tank 3.3.3 filler cap part which is fitted to the filler neck (3.3.1) to prevent spillage as well as
27、 to minimize contamination of AUS 32, and which is temporarily opened or removed for refilling 3.4 open refilling system universal refilling system (3.1) for which gas tightness between the filler nozzle (3.2.1) and the filler neck (3.3.1) is not required NOTE The open refilling system permits refil
28、ling using a small volume container, for example. 3.5 sealed refilling system specific refilling system (3.1) where the connection between the filler nozzle (3.2.1) and the filler neck (3.3.1) is gas-tight 3.6 vehicle commercial vehicle or bus as defined in ISO 3833 and having a gross vehicle mass o
29、f more than 3,5 t, designed to use a stationary off-board refilling system (3.2) 4 Requirements 4.1 Functional requirements The on-board refilling system and the off-board refilling system shall comply with the basic functional requirements specified in Table 1. BS ISO 22241-4:2009ISO 22241-4:2009(E
30、) ISO 2009 All rights reserved 3Table 1 Basic functional requirements Characteristic Requirements Remark Maximum flow rate W 20 l/min. u 40 l/min. Automatic shut-off of filler nozzle Feature required in compliance with EN 13012 or equivalent Standard. To protect against overfill. Maximum filling lev
31、el in AUS 32 on-board tank The automatic shut-off system of the nozzle shall be used to protect against filling above maximum level. The on-board tank shall be designed to allow for expansion of AUS 32. High volume expansion of AUS 32 during freezing (approx. 7 %). Spillage 30 ml per refilling with
32、filler neck angles from the horizontal between 50 and 90. 50 ml per refilling with filler neck angles from the horizontal between 30 and 50. To minimize the effects of spilt AUS 32 on the equipment. Ventilation during refilling Feature required on AUS 32 on-board tank. 30 C to +80 C for components i
33、nstalled on the vehicle. Operational temperature range 20 C to +40 C for components at the service station. For specific regions, the temperature range specified may not be sufficient. In such cases, a wider temperature range, representative of that specific region, shall be considered. For specific
34、 regions, the temperature range specified may be excessive. In such cases, a narrower temperature range, representative of that specific region, may be considered. Misfilling of AUS 32 into the diesel fuel tank u 80 ml per filling trial. The filler nozzle with magnet switch as specified in 4.5, or e
35、quivalent device, will prevent misfiling. Misfilling of fuel into the AUS 32 on-board tank Feature required to prevent dispensing of diesel fuel or petrol in AUS 32 on-board tank. The inlet adapter diameter specified in 4.3 does not allow a diesel fuel or petrol nozzle to enter. Materials Suitable m
36、aterials in accordance with ISO 22241-3 should be selected. Materials in contact with AUS 32 shall be compatible with AUS 32 to avoid contamination of AUS 32 as well as corrosion of the devices used. Freezing of AUS 32 Provide protection at the service station. Vehicle parts shall be designed to cop
37、e with freezing and thawing in accordance with operational temperature range. AUS 32 freezes at 11,5 C and has a volume increase of approximately 7 %. Cleanness A high level of cleanness of all components of the on-board and off-board refilling systems shall be secured during the manufacturing, asse
38、mbly and installation processes, in order to minimize contamination of AUS 32. Cleanness level for the components of the off-board refilling system shall be in accordance with ISO 22241-3. Cleanness level for the components of the on-board refilling system shall be agreed between vehicle and compone
39、nt manufacturers, in compliance with state-of-the-art. Reliability and durability The filler neck, inlet adapter and filler cap shall be designed and manufactured to be fully functional during the vehicle lifetime without any service, adjustment or replacement. CrystallizationaProtection recommended
40、 Contact with air should be minimized. MarkingaSymbol as specified in ISO 2575. Marking as specified in ISO 22241-1. Blue is the recommended colour for filler caps. aRecommendations only. BS ISO 22241-4:2009ISO 22241-4:2009(E) 4 ISO 2009 All rights reserved4.2 Filler neck The filler neck allows the
41、vehicle manufacturer or any authorized person to install or remove an inlet adapter that can accommodate an open refilling system. For dimensional details of the filler neck, see Figure 1 and Table 2. The geometric location and orientation of the filler neck on the vehicle should be specified by the
42、 vehicle manufacturer, taking into account the free space required for the proper application of the filler nozzle (see 4.6). aHorizontal. Figure 1 Filler neck Table 2 Dimensions of the filler neck Symbol Parameter Dimension A Diameter inlet or upper stop W 39,5 mm B Diameter upper support W 37 mm C
43、 Height upper stop u 48 mm D W 30 bE Filler neck angle from horizontal au 90 aAn angle between 50 and 90 is recommended to minimize spillage (see Table 1). bIf, due to body design restrictions, an angle smaller than 30 is chosen by the designer, spillage will typically be greater and may exceed the
44、value specified in Table 1, in which case the function of the nozzle may be limited. 4.3 Inlet adapter The inlet adapter shall be designed to fit inside the filler neck. The internal diameter of the inlet adapter shall prevent a filler nozzle spout greater than 20,0 mm in diameter from entering the
45、inlet adapter. The inlet adapter shall be equipped with a magnet ring having the characteristics specified in Table 3, as shown in Figure 2. BS ISO 22241-4:2009ISO 22241-4:2009(E) ISO 2009 All rights reserved 5Dimensions in millimetres Key 1 filler neck 2 inlet adapter 3 magnet ring aHorizontal. bFl
46、ow direction. Figure 2 Inlet adapter Table 3 Magnet ring characteristics Parameter Requirements outer diameter 34 mm inner diameter 24 mm Dimensions height 10 mmMaterial Neodymium-Iron-Boron (NdFeB) remanence 1,2 T to 1,3 T Magnet parameter coercivity 800 kA/m to 900 kA/m Orientation North pole poin
47、ting outwards from the tank 4.4 Filler cap Closed filler caps shall be tight for AUS 32. Marking and colouring of the filler cap should be as recommended in Table 1. BS ISO 22241-4:2009ISO 22241-4:2009(E) 6 ISO 2009 All rights reserved4.5 Filler nozzle The nozzle spout shall be cylindrical with an o
48、uter diameter of (19 0,25) mm and a length of (70 2) mm (see Figure 3). The nozzle spout shall be equipped with a magnet switch, which interacts with the magnet ring of the inlet adapter (see Figure 4). If the nozzle is inserted accidentally into a fuel tank or another liquid container, the magnet s
49、witch prevents misfilling. Dimensions in millimetres Figure 3 Nozzle spout BS ISO 22241-4:2009ISO 22241-4:2009(E) ISO 2009 All rights reserved 7Dimensions in millimetres Key 1 filler pipe (neck) 2 magnet adapter 3 magnet switch Figure 4 Position of nozzle spout with magnet switch inserted into inlet adapter 4.6 Minimum free space for refilling Vehicle and body manufacturers shall ensure that the space illustrated in Figure 5 and defined in Figure 6 is available and
