1、c NIL-PRF-62565B 0b 2058535 OT I INCH-POUND( MIL-PRF-2565B(AT) 29 December 1997 SUPERSEDING 15 April 1994 MIL-A-62565A(AT) PERFORMANCE SPECIFICATION AIR CLEANER, ENGINE This specijcation is approved for use by the U. S. Army Tank-automotive and Armaments Command, Department of the Army, and is avail
2、able for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the performance, test, manufacture and acceptance requirements for the engine air cleaner, referred ta herein as the air cleaner, and the replaceable air filter element, referred
3、to herein as the filter element. Unless indicated otherwise, references to the air cleaner can be understood to include the filter element. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include
4、 documents in other section of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirement documents cited in sections 3 and 4 of this
5、 specification, whether or not they are listed. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: U.S. Army Tank-automotive and Armaments Command, ATTN: AMSTA-TR-E/BLUE, Warren, MI 48397-5000, by
6、using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this I document, or by letter. I AMSC N/A FSC 2940 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted wit
7、hout license from IHS-,-,- MIL-PRF-62565B D 999990b 2058536 T35 MIL-PRF-62 5 65B (AT) 2.2 Government documents. 2.2.1 Government documents. drawinas. and publications. The following Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless o
8、therwise specified, the issues are those cited in the solicitation. DRAWINGS ARMY 19207-12307204 19207-12329100 - Air Cleaner, Engine (Interface) - Element, Air Filter (Interface) (Copies of these drawings are available from the U.S. Army Tank-automotive and Armaments Command, ATTN: AMSTA-TR-EBLUE,
9、Warren, M 48397-5000.) 2.3 Non-Government Dublications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DoDISS cited in the solicitation. Unless oth
10、erwise specified, the issues of documents not listed in the DoDISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN NATIONAL STNARDS INSTITUTE (ANSI) ANSI/NCSL 2540.1 - General Requirements for Calibration Laboratories and Measuring and Test Equipment. (Application for c
11、opies should be addressed to American National Standards Institute, 11 West 42nd Street, New York 10036.) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM B633 - Electrodeposited Coatings of Zinc on Iron and Steel OD Adopted). (Application for copies of ASTM publications may be obtained fkom t
12、he American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) SOCIETY OF AUTOMOTIVE ENGINEERS, INC. (SAE) SAE J726 - Air Cleaner Test Code, Recommended Practice OD Adopted). 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
13、nse from IHS-,-,-MIL-PRF-bZ5658 W 9999906 2058537 973 (Application of copies should be addressed to the Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096.) 2.4 Order of Drecedence. In the event of a conflict between the text of this document and the references cited herei
14、n, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a first article sample shall be subjected to first article inspecti
15、on in accordance with 4.1.1. 3.2 Desim materials. and manufacturing processes. Unless otherwise specified, the design, materials, and manufacturing process selection shall be the prerogative of the contractor as long as all articles submitted to the Government fully meet the operating, interface, ow
16、nership and support, and operating environment requirements specified. (Asbestos and cadmium materials shall not be used in any form in any part of the air cleaner or filter element. No item, part or assembly shall contain radioactive materials in which the specific activity is greater than 0.002 mi
17、crocuries per gram or activity per item equals or exceeds 0.01 microcuries). 3.2.1 Dissimilar Metals. The air cleaner and filter element shall be designed and fabricated to minimize galvanic corrosion in dissimilar metal couples. 3 2.2 Recvcled. recovered. or environmentallv preferable materials. Re
18、cycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs. 3.3 Operating requirements. The air cleaner shal
19、l meet the following performance requirements: 3.3.1 Air leakage. The air cleaner, when subjected to a vacuum of 50 inches of water or a pressure of 2 pounds per square inch (psi) (1 3.8 kilopascals (Ha) for a period of not less than 5 minutes (min), shall not leak more than 0.3 standard cubic feet
20、per minute (stdR3/min) (O. 141 liter per second (L/s). NOTE: This requirement does not apply to the filter element. 3.3.2 Airflow restriction. Pressure drop fiom intake to outlet shall not exceed 9.6 in. of water (2.38 Wa) when filter is clean and airflow is 980 ft/min. (462.5 L/s). 3 Provided by IH
21、SNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-PRF-62565B m 9999906 2058518 808 m 3.3.3 Initial efficiency. Air cleaner initiai efficiency shall be 99.5 percent (%) minimum, when installed. 3.3.4 Dust cauacitv. Dust capacity shall be such that the pressure dr
22、op across the air cleaner shall not exceed 20 in. of water (4.97 kPa) after 28 hours (hr) of operation with a vacuum of 5 h. of water (1.24 kPa) or a continuous a flow of 98 fi3/. (46.2 Us) at the scavenging outlet and dust continuously introduced at a rate of 0.025 gram per cubic foot (dit3) (0.88
23、gram per cubic meter (g/m3) of air. Particle size distribution shall be as specified h SAE J726. 3.3.5 Airflow restriction after cleaning. Pressure drop across the air cleaner shall not exceed 1 in. of water (0.25 kPa) increase over original pressure drop after the air cleaner has been operated to d
24、ust capacity, filter element cleaned and the same filter element reinstalled. 3.3.6 Flame resistance. Filter element shall not continue to burn or smolder for more than 10 seconds requirements vedcation. 4.2.3.1 Air leakage. To determine conformance to 3.3.1, the air cleaner inlet shall be connected
25、 to a flowmeter and all other inlets and outlets shall be sealed to prevent air leakage. The flowmeter shall be as accurate as a O. 19 in. (4.8 mm) orifice connected to a 20.01 in. (0.25 mm) water manometer. The flowmeter shall indicate an airflow no greater than 0.3 ft3/min. (.O141 L/s) when the ai
26、r cleaner is subjected to a vacuum of 50 in. of water (12.44 kPa) when measured at the air cleaner air outlet. As an alternate method, the air cleaner shall be pressurized at not less than 2 psi (13.8 Ha) pressure. Air leakage shall not exceed the specified limit. 4.2.3.2 Airflow restriction. To det
27、ermine conformance to 3.3.2, using the air cleaner Set-up as shown in figure 2, airfiow restriction in in. of water shall be determined at the rated airflow of 980 fi3/ environment requirements verification. 4.2.6.1 Shock. To determine conformance to 3.6.1, the air cleaner shall be mounted in a mann
28、er that simulates actual use, or shall be rigidly mounted to a shock table, and shall be subjected to three sawtooth shocks of 40 g in accordance with figure 7 and time duration of 11 ms applied along the three mutually perpendicular axes of the air cleaner for a total of 18 shocks. No performance t
29、esting shall be required during shock. At the conclusion of shock testing, the air cleaner shall be subjected to the air leakage and initial efficiency tests specied in 4.2.3.1 and 4.2.3.3. 4.2.6.2 Vibration. To determine conformance to 3.6.2, the air cleaner shall be mounted in a manner that will s
30、imulate its actual use and shall be vibrated along each axis in accordance with the vibration levels specified in figure 8. The sweep time shall be 15 min for the sweep fiequency range of 5 to 500 to 5 Hz. The cycling time shall not exceed 3 hr in each axis. The frequency of applied vibration shall
31、be swept over the specified range logarithmically in accordance with figure 9. The specified sweep time is that of an ascending plus a descending sweep and is twice the ascending sweep time shown in figure 9 for the specified range. When the air cleaner resonances below 5 Hz are measured, the test c
32、urve shall be extended to 2 Hz and the sweep time shall be 18 min (2 to 500 to 2 Hz). There shall be no operational tests required during vibration. After the test, the air cleaner shall be subjected to the air leakage and initial efficiency tests specified in 4.2.3.1 and 4.2.3.3. 4.2.6.3 Steam and
33、watedet cleaning. To determine conformance to 3.6.3, with the inlet and outlet tubes suitably sealed, the air cleaner shall be subjected to steam cleaning, followed immediately by waterjet cleaning. The jet shall be applied perpendicular to the surface being cleaned at a distance of not greater than
34、 1 foot (fi) (0.3 1 meters (m) for steam cleaning, and not greater than 3 R (0.91 m) for waterjet cleaning. The jet pressure shall be 105 & 5 psig (724 5 34 kPa) for steam cleaning and 50 5 5 psig (345 & 34 kPa) for waterjet cleaning. The jet shall be moved at such a rate that the exposed surface of
35、 the air cleaner is subjected to the jet at the rate of 1 square foot per minute (ft2/min) (0.092 square meter per minute (m2/min) for 2 to 3 min. Prior to and within 2 hr after completing the steam and waterjet cleaning, the air cleaner shall be subjected to the air leakage and initial efficiency t
36、ests specified in 4.2.3.1 and 4.2.3.3. Moisture inside the air cleaner shall not be considered a failure. 4.2.6.4 Protective coating inspection. Inspect the protective coating for conformance as specified herein. 5. PACKAGING 5.1 Packang. For acquisition purposes, the packaging requirements shall be
37、 as specified in the contract or order (see 6.2). When actual packaging of materiel is to be performed by DoD personnel, these personnel need to contact the responsible packaging activity to ascertain requisite 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
38、rom IHS-,-,- MIL-PRF-625b58 b 205852b 98q = packaging requirements. Packaging requirements are maintained by the Inventory Control Points packaging activity within the Military Department or Defense Agency, or within the Military Departments System Command. Packaging data retrieval is available fi-o
39、m the managing Military Departments or Defense Agencys automated packaging files, CD-ROM products, or by contacting the responsible packaging activity. 6. NOTES (This section contains information of a general or explanatory nature that may be helpfl, but is not mandatory.) 6.1 Intended use. Air clea
40、ners manufactured in accordance with this specification are intended for use on military tracked vehicles in the 500 HP AO, Al and A2 Bradley Fighting Vehicle (BFV) Family, Air cleaner is military unique because it must withstand the dust conditions and the types of high shock and vibration that wou
41、ld be experienced on the battlefield, that exceed any commercial requirements. . 6.2 Acauisition reauirements. Acquisition documents must specie the following: a. b. C. d. e. f 5 Title, number, and date of this specification. Issue of DoDISS to be cited in the solicitation and, ifrequired, the speci
42、fic issue of individual documents referenced (see 2.2.1 and 2.3). If the first article is required (see 3.1). Identification and marking ifother than as specified (see 3.5.1). If inspection conditions should be other than as specified (see 4.2.2.1). If sample size for first article inspection is oth
43、er than as specified (see 4.1.1). Packaging requirements (see 5.1). 6.3 First article. When requiring a first article inspection, contracting documents should provide specific guidance to offerors. This guidance should cover whether the first article is a fust article sample, a first production item
44、, or the number of test items. These documents should also include specific instructions regarding arrangements for examinations, approval of first article test results, and disposition of first articles. Pre-solicitation documents should provide Government waiver rights for samples for first articl
45、e inspection to bidders offering a previously acquired or tested product4 Bidders offering such products who wish to rely on such production testing must Wsh evidence with the bid that prior Government approval is appropriate for the pending contract. 6.4 Conformance inspection. Affordable conforman
46、ce inspection with confidence varies depending upon a number of procurement risk factors. Some of these factors include: Contractor past performance, Government schedules and budget, product material and design maturity, manufacturing capital equipment and processes applied, the controlled unifoxmit
47、y of those 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-PRF-62565B 9999906 2058527 810 MIL-PFG-625 65B(AT) processes, labor skill and training, and the uniformity of measuring processes and techniques. During the solicitation, contracting
48、documents should indicate those tests desired from table I and their designated frequency based on a risk assessment for the procurement. 6.5 Subiected term key word) listing. Absolute filter Leakage Airflow Military tracked vehicles Bradley fighting vehicle family Piezometer Dust Scavenge vacuum Fl
49、ame resistant 6.6 Changes from previous issue. Marginal notations are not used in this revision to identie changes with respect to the previous issue due to the extent of the changes. 0.2502 0.032 A NOTE: All dimensions are in inches FIGURE 1. Tubular ioints. 13 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- HIL-PRF-bZSb5B 9999906 2058528 757 MIL-PRF-625 65B(AT) AIR INLET7
