ISO INTERNATIONAL STANDARD 9206 Third edition 2018-12 Aerospace Fixed displacement hydraulic motors General specifications Aéronautique et espace Moteurs hydrauliques a cylindrée fixe - Spécifications générales Reference number IS0 9206:2018(E) @ IS0 2018 E"eqr[tkijvgf"d["WPG.'E1"1gpqxc.'8I"'4:226"Ocftkf.'Urckp"*cm'tkij 7;"WVE*4246 IS0 9206:2018(E) COPYRIGHT PROTECTEDDOCUMENT @IS02018 be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting below or Iso's member body in the country of the requester. ISO copyright office CP 40i : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii IS02018-Allrightsreserved E*eqr[tkijvgf"d["WPG.'E1"1gpqxc."8I"4:226"Ocftkf.'Urckp*cm'tkijvu'tgugtxgf+*'Uwp"Hgd’3:*22<67<7 ;"WVE"4246 "tnrtnfwekanicavintiInfi IS0 9206:2018(E) Contents Page Foreword ..vi 1 Scope. ...1 2 Normative references 3 Terms and definitions ..2 4 Classification ..6 5 General requirements .6 5.1 Order of precedence. 5.2 Hydraulic system characteristics ..7 5.3 Airworthiness regulations 5.4 Qualification 7 6 Functional requirements .7 6.1 Hydraulic fluid. 6.2 Pressures. 7 6.2.1 Rated supply pressure. 7 6.2.2 Rated differential pressure 7 6.2.3 No-load break-out pressure .8 6.2.4 Motor outlet port pressure .8 6.2.5 Case drain pressure. .8 6.3 Flows. 6.3.1 Rated consumption. ..8 6.3.2 Case drain flow. 6.3.3 Shaft seal leakage flow .8 6.3.4 External leakage .9 6.4 Speed and direction of rotation ..9 6.4.1 Speed .9 6.5 Torque .12 6.5.1 Rated torque .12 6.5.2 Break-out torque .12 6.5.3 Stalling torque .12 6.5.4 Torque pulsations .12 6.6 Motor overall efficiency .12 6.7 Dynamic characteristics. 12 6.7.1 General. .12 6.7.2 Dynamic braking .12 6.7.3 Rapid reversals. .13 6.8 Passive operation .13 6.9 Rated temperature. ..13 6.10 Acoustic noise level. .13 6.11 Rated endurance.. 6.12 Environmental requirements. ..14 7 Detail design requirements . ..14 7.1 Dimensionally critical components ..14 7.2 Maintainability features. ..14 7.3 Seals. .14 7.4 Lubrication .15 7.5 Balance. ..15 7.6 Self-contained failure .15 7.7 Safety wire sealing. .15 7.8 Electro-conductive bonding. .15 7.9 Marking .15 7.9.1 Nameplate ..15 7.9.2 Fluid identification. .16 iii