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Single- and double-acting cylinders

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156: 329: 279: 119: 228: 167: 246:, where the gudgeon pin joint of the connecting rod is within the piston itself. This avoids the crosshead, piston rod and its sealing gland, but it also makes a single-acting piston almost essential. This, in turn, has the advantage of allowing easy access to the bottom of the piston for lubricating oil, which also has an important cooling function. This avoids local overheating of the piston and rings. 20: 146:
but unusual in other engine types. Many hydraulic and pneumatic cylinders use them where it is needed to produce a force in both directions. A double-acting hydraulic cylinder has a port at each end, supplied with hydraulic fluid for both the retraction and extension of the piston. A double-acting
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Internal combustion engines soon switched to single-acting cylinders. This was for two reasons: as for the high-speed steam engine, the high force on each piston and its connecting rod was so great that it placed large demands upon the bearings. A single-acting piston, where the direction of the
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forces was consistently compressive along the connecting rod, allowed for tighter bearing clearances. Secondly the need for large valve areas to provide good gas flow, whilst requiring a small volume for the combustion chamber so as to provide good
266:. This uses both sides of the piston as working faces, the lower side of the piston acting as a piston compressor to compress the inlet charge ready for the next stroke. The piston is still considered as single-acting, as only one of these faces 188:
Where these were used for pumping mine shafts and only had to act against a load in one direction, single-acting designs remained in use for many years. The main impetus towards double-acting cylinders came when
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became part of the piston, and there was no longer any piston rod. This was for similar reasons to the internal combustion engine, as avoiding the piston rod and its seals allowed a more effective
197:, that could be used to drive machinery via an output shaft. Compared to a single-cylinder engine, a double-acting cylinder gave a smoother power output. The high-pressure engine, as developed by 130:
is a cylinder in which the working fluid acts alternately on both sides of the piston. In order to connect the piston in a double-acting cylinder to an external mechanism, such as a
155: 185:, were single-acting. These often transmitted their force through the beam by means of chains and an "arch head", as only a tension in one direction was needed. 782: 147:
cylinder is used where an external force is not available to retract the piston or it can be used where high force is required in both directions of travel.
82:, to push the piston back in the other direction. Single-acting cylinders are found in most kinds of reciprocating engine. They are almost universal in 328: 447:
was laid up for eight months until 1938 while the engines were replaced. Even then the engines were regarded as unsatisfactory and were replaced by
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made 2-stroke cycle double-acting (2-SCDA) diesels for marine propulsion before 1930. The first, of 7,000 hp, was fitted in the British MV
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The pressure of around 30 psi (2 bar) was low by today's standard and only "high" in comparison to Watt engines.
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that is powered by a pressurised liquid, typically oil. It has many applications, notably in construction equipment (
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Small models and toys often use single-acting cylinders for the above reason but also to reduce manufacturing costs.
1375: 1691: 1603: 1557: 1662: 1306: 359:, and so the double-acting cylinder designs were still adequate, despite their narrow, convoluted passageways. 473:
s engines, this version was still troublesome and the boats were later re-engined with the same single-acting
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Double-acting cylinders have been infrequently used for internal combustion engines since, although
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only. A single-acting cylinder relies on the load, springs, other cylinders, or the momentum of a
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16-248 V16 engines as their sister boats. Other Electric Boat-constructed submarines of the
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classes. Knowledge's article considers them the P-1, P-3 & P-5 sub-types of a single
466:, with a 9-cylinder development of the H.O.R. engine. Although not as great a failure as 439:
s engines were a complete failure and were wrecked during trials before even leaving the
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Six boats were built, with three different diesel engine designs from different makers.
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are often classified by whether they are single- or double-acting, depending on how the
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class, were also built with these 9-cylinder H.O.R. engines, but later re-engined.
1409: 1351: 1159: 1154: 1068: 1023: 448: 263: 99: 432:, or, in this case, double-acting engines were favoured for being more compact. 142:" to prevent escape of the working fluid. Double-acting cylinders are common in 1595: 1444: 1416: 1093: 915: 905: 815: 474: 340: 1726: 1383: 1356: 1255: 1174: 1010: 694:"Amazing Airplane Motor Doubles The Power", Popular Mechanics, September 1932 463: 415: 344: 314: 310: 91: 87: 71: 43: 613: 177:
normally use double-acting cylinders. However, early steam engines, such as
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The Fleet Submarine in the U.S. Navy: A Design and Construction History
378: 297:'s original engines, from around 1860, were double-acting and followed 290: 190: 1311: 1296: 428:. Owing to the limited space available within the submarines, either 213: 209: 642: 1200: 522: 79: 760: 313:. Lenoir's steam engine-derived cylinder was inadequate for the 1316: 1053: 419: 75: 47: 717:. London: Arms and Armour Press. pp. 48, 50, 62–63, 210. 835: 273: 249: 231:
Single-acting pistons of a typical modern diesel car engine
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Typical horizontal steam engine with double-acting cylinder
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is familiar from internal combustion engines today.
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with one of the first single-acting power cylinders
208:, used single-acting pistons of a new design. The 1724: 708: 706: 704: 702: 696:cutaway drawing of double action aircraft engine 673:. Cambridge University Press. pp. 334–336. 16:Classification of reciprocating engine cylinders 670:A Short History of Naval and Marine Engineering 414:) 8-cylinder double-acting engines that were a 339:Extremely large gas engines were also built as 170:Single-acting oscillating-cylinder steam engine 222: 776: 699: 462:were ordered. Three of these were built by 783: 769: 489:classes, as well as the first few of the 309:, monopolised the space available in the 274:Double-acting internal combustion engines 235:In contrast to steam engines, nearly all 508: 327: 277: 250:Crankcase compression two-stroke engines 226: 165: 154: 117: 18: 1658:Glossary of steam locomotive components 262:rather than a separate supercharger or 1725: 498: 764: 752: 740: 712: 666: 608: 351:. These, particularly those built by 204:Some of the later steam engines, the 239:have used single-acting cylinders. 106:. They are also found in pumps and 13: 1510:National Museum of Scotland engine 317:and so a new design, based around 14: 1754: 790: 652:. New York: Theo Audel. pp.  649:New Catechism of the Steam Engine 422:auxiliary engines of the cruiser 1692:List of steam technology patents 513:Double-acting hydraulic cylinder 150: 113: 53: 258:, such as for motorcycles, use 1677:Murdoch's model steam carriage 1663:History of steam road vehicles 687: 660: 602: 565: 552: 543: 384: 1: 1604:Murray's Hypocycloidal Engine 596: 1327:Return connecting rod engine 536: 357:compression-ignition engines 94:) and are also used in many 7: 1251:Condensing steam locomotive 455:was still being built, the 399:was ordered as part of the 237:internal combustion engines 223:Internal combustion engines 159:Westinghouse single-acting 96:external combustion engines 84:internal combustion engines 10: 1759: 1558:"Coalbrookdale Locomotive" 620:Cambridge University Press 502: 242:Their pistons are usually 1650: 1621: 1594: 1575: 1564:"Pen-y-Darren" locomotive 1529: 1482: 1435: 1426: 1393: 1374: 1365: 1284: 1241: 1233:Single- and double-acting 1213: 1183: 1135: 1107: 1061: 1052: 968: 896: 843: 834: 798: 667:Smith, Edgar C. (2013) . 571:Alden gives these as the 533:, and civil engineering. 392:In 1935 the US submarine 1403:Newcomen Memorial Engine 410:was fitted with H.O.R. ( 377:in 1937 produced 24,000 285:double-acting gas engine 206:high-speed steam engines 193:was trying to develop a 74:acts on one side of the 1707:Timeline of steam power 1702:Stationary steam engine 1585:Woolf's compound engine 1492:Soho Manufactory engine 1347:Steeple compound engine 1014:straight line mechanism 713:Alden, John D. (1979). 531:manufacturing machinery 451:engines in 1942. While 412:Hooven-Owens-Rentschler 161:high-speed steam engine 24:Atmospheric beam engine 1712:Water-returning engine 1686:Lean's Engine Reporter 1459:Chacewater Mine engine 1332:Six-column beam engine 514: 336: 286: 232: 171: 163: 128:double-acting cylinder 123: 60:single-acting cylinder 32:mechanical engineering 27: 1552:London Steam Carriage 512: 441:Mare Island Navy Yard 364:Burmeister & Wain 331: 281: 260:crankcase compression 230: 169: 158: 121: 40:reciprocating engines 22: 1498:Bradley Works engine 1322:Reciprocating engine 1145:Babcock & Wilcox 988:Centrifugal governor 527:engineering vehicles 321:and a single-acting 216:lubrication system. 195:rotative beam engine 64:reciprocating engine 1039:Sun and planet gear 743:, pp. 65, 210. 622:. pp. 63, 66. 499:Hydraulic cylinders 335:gas engine, section 179:atmospheric engines 1539:Richard Trevithick 1137:Water-tube boilers 951:Gresley conjugated 519:hydraulic cylinder 515: 505:Hydraulic cylinder 337: 325:appeared instead. 287: 256:two-stroke engines 233: 199:Richard Trevithick 172: 164: 124: 28: 1720: 1719: 1646: 1645: 1525: 1524: 1209: 1208: 1109:Fire-tube boilers 964: 963: 644:Hawkins, Nehemiah 610:Hills, Richard L. 460:-class submarines 301:in their design. 1750: 1670:fardier à vapeur 1504:Whitbread Engine 1465:Smethwick Engine 1433: 1432: 1372: 1371: 1191:Feedwater heater 1059: 1058: 841: 840: 785: 778: 771: 762: 761: 756: 750: 744: 738: 729: 728: 710: 697: 691: 685: 684: 664: 658: 657: 640: 634: 633: 615:Power from Steam 606: 590: 569: 563: 556: 550: 547: 521:is a mechanical 472: 438: 100:Stirling engines 1758: 1757: 1753: 1752: 1751: 1749: 1748: 1747: 1723: 1722: 1721: 1716: 1642: 1617: 1590: 1571: 1521: 1478: 1422: 1410:Fairbottom Bobs 1395:Newcomen engine 1389: 1361: 1307:Expansion valve 1280: 1266:Watt's separate 1237: 1205: 1179: 1131: 1103: 1048: 1024:Parallel motion 960: 911:Stephenson link 892: 830: 799:Operating cycle 794: 789: 759: 751: 747: 739: 732: 725: 711: 700: 692: 688: 681: 665: 661: 641: 637: 630: 607: 603: 599: 594: 593: 570: 566: 557: 553: 548: 544: 539: 507: 501: 470: 449:Fairbanks-Morse 436: 418:version of the 390: 374:Stirling Castle 341:blowing engines 276: 264:scavenge blower 252: 225: 153: 116: 56: 17: 12: 11: 5: 1756: 1746: 1745: 1740: 1735: 1733:Piston engines 1718: 1717: 1715: 1714: 1709: 1704: 1699: 1694: 1689: 1682: 1681: 1680: 1674: 1660: 1654: 1652: 1648: 1647: 1644: 1643: 1641: 1640: 1634: 1627: 1625: 1619: 1618: 1616: 1615: 1607: 1600: 1598: 1592: 1591: 1589: 1588: 1581: 1579: 1573: 1572: 1570: 1569: 1568: 1567: 1561: 1555: 1549: 1535: 1533: 1527: 1526: 1523: 1522: 1520: 1519: 1513: 1507: 1501: 1495: 1488: 1486: 1480: 1479: 1477: 1476: 1468: 1462: 1456: 1448: 1445:Kinneil Engine 1441: 1439: 1430: 1424: 1423: 1421: 1420: 1417:Elsecar Engine 1414: 1406: 1399: 1397: 1391: 1390: 1388: 1387: 1380: 1378: 1369: 1363: 1362: 1360: 1359: 1354: 1349: 1344: 1339: 1337:Steeple engine 1334: 1329: 1324: 1319: 1314: 1309: 1304: 1299: 1294: 1288: 1286: 1282: 1281: 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furnaces 275: 272: 251: 248: 224: 221: 152: 149: 115: 112: 108:hydraulic rams 92:diesel engines 55: 52: 15: 9: 6: 4: 3: 2: 1755: 1744: 1741: 1739: 1738:Steam engines 1736: 1734: 1731: 1730: 1728: 1713: 1710: 1708: 1705: 1703: 1700: 1698: 1695: 1693: 1690: 1688: 1687: 1683: 1678: 1675: 1672: 1671: 1666: 1665: 1664: 1661: 1659: 1656: 1655: 1653: 1649: 1638: 1635: 1632: 1629: 1628: 1626: 1624: 1620: 1613: 1612: 1608: 1605: 1602: 1601: 1599: 1597: 1593: 1586: 1583: 1582: 1580: 1578: 1574: 1565: 1562: 1559: 1556: 1553: 1550: 1547: 1546: 1545:Puffing Devil 1542: 1541: 1540: 1537: 1536: 1534: 1532: 1531:High-pressure 1528: 1517: 1514: 1511: 1508: 1505: 1502: 1499: 1496: 1493: 1490: 1489: 1487: 1485: 1484:Rotative beam 1481: 1474: 1473: 1469: 1466: 1463: 1460: 1457: 1454: 1453: 1449: 1446: 1443: 1442: 1440: 1438: 1434: 1431: 1429: 1425: 1418: 1415: 1412: 1411: 1407: 1404: 1401: 1400: 1398: 1396: 1392: 1385: 1384:Savery Engine 1382: 1381: 1379: 1377: 1373: 1370: 1368: 1364: 1358: 1357:Working fluid 1355: 1353: 1350: 1348: 1345: 1343: 1340: 1338: 1335: 1333: 1330: 1328: 1325: 1323: 1320: 1318: 1315: 1313: 1310: 1308: 1305: 1303: 1300: 1298: 1295: 1293: 1290: 1289: 1287: 1283: 1277: 1274: 1272: 1269: 1267: 1264: 1262: 1259: 1257: 1254: 1252: 1249: 1248: 1246: 1244: 1240: 1234: 1231: 1229: 1226: 1224: 1221: 1220: 1218: 1216: 1212: 1202: 1199: 1197: 1194: 1192: 1189: 1188: 1186: 1182: 1176: 1173: 1171: 1168: 1166: 1163: 1161: 1158: 1156: 1153: 1151: 1148: 1146: 1143: 1142: 1140: 1138: 1134: 1128: 1125: 1123: 1120: 1118: 1115: 1114: 1112: 1110: 1106: 1100: 1097: 1095: 1092: 1090: 1087: 1085: 1082: 1080: 1077: 1075: 1072: 1070: 1067: 1066: 1064: 1060: 1057: 1055: 1051: 1045: 1042: 1040: 1037: 1035: 1034:Rotative beam 1032: 1030: 1027: 1025: 1022: 1020: 1017: 1015: 1012: 1011:hypocycloidal 1009: 1006: 1004: 1001: 999: 996: 994: 991: 989: 986: 984: 981: 979: 976: 975: 973: 971: 967: 957: 954: 952: 949: 947: 944: 942: 939: 937: 934: 932: 929: 927: 924: 922: 919: 917: 914: 912: 909: 907: 904: 903: 901: 899: 895: 889: 886: 884: 881: 879: 876: 874: 871: 869: 866: 864: 861: 857: 854: 853: 852: 849: 848: 846: 842: 839: 837: 833: 827: 824: 822: 819: 817: 814: 812: 809: 807: 804: 803: 801: 797: 793: 792:Steam engines 786: 781: 779: 774: 772: 767: 766: 763: 754: 749: 742: 737: 735: 726: 724:0-85368-203-8 720: 716: 709: 707: 705: 703: 695: 690: 682: 680:9781107672932 676: 672: 671: 663: 655: 651: 650: 645: 639: 631: 629:0-521-45834-X 625: 621: 617: 616: 611: 605: 601: 588: 587: 582: 578: 574: 568: 561: 555: 546: 542: 534: 532: 528: 524: 520: 511: 506: 496: 494: 493: 488: 487: 482: 481: 476: 469: 465: 464:Electric Boat 461: 459: 454: 450: 446: 442: 435: 431: 427: 426: 421: 417: 416:licence-built 413: 409: 405: 403: 398: 397: 388: 382: 380: 376: 375: 369: 365: 360: 358: 354: 350: 346: 342: 334: 330: 326: 324: 320: 319:poppet valves 316: 315:petrol engine 312: 311:cylinder head 308: 302: 300: 299:steam engines 296: 292: 284: 280: 271: 269: 265: 261: 257: 254:Small petrol 247: 245: 244:trunk pistons 240: 238: 229: 220: 217: 215: 211: 207: 202: 200: 196: 192: 186: 184: 180: 176: 175:Steam engines 168: 162: 157: 151:Steam engines 148: 145: 144:steam engines 141: 137: 133: 129: 120: 114:Double-acting 111: 109: 105: 104:steam engines 101: 97: 93: 89: 85: 81: 77: 73: 72:working fluid 70:in which the 69: 65: 61: 54:Single-acting 51: 49: 45: 44:working fluid 41: 37: 33: 25: 21: 1697:Modern steam 1684: 1669: 1631:Porter-Allen 1610: 1544: 1471: 1451: 1408: 1342:Safety valve 1271:"Pickle-pot" 1232: 1165:Thimble tube 753:Alden (1979) 748: 741:Alden (1979) 714: 689: 669: 662: 648: 638: 614: 604: 585: 580: 576: 572: 567: 560:trunk piston 554: 545: 518: 516: 491: 485: 479: 467: 457: 452: 444: 433: 424: 407: 401: 395: 391: 386: 373: 367: 361: 338: 323:trunk piston 303: 288: 267: 253: 241: 234: 218: 203: 187: 183:beam engines 173: 140:stuffing box 127: 125: 59: 57: 46:acts on the 29: 1428:Watt engine 1228:Oscillating 1184:Boiler feed 1029:Plate chain 1008:Tusi couple 921:Walschaerts 806:Atmospheric 349:furnace gas 307:compression 291:gas engines 289:Some early 132:crank shaft 1743:Hydraulics 1727:Categories 1637:Ljungström 1623:High-speed 1516:Lap Engine 1472:Resolution 1376:Precursors 1261:Kirchweger 1223:Locomotive 1170:Three-drum 1150:Field-tube 1117:Locomotive 1099:Lancashire 1019:Link chain 1003:Crankshaft 970:Mechanisms 898:Valve gear 597:References 293:, such as 191:James Watt 1668:Cugnot's 1611:Salamanca 1312:Hydrolock 1297:Crosshead 1243:Condenser 1079:Egg-ended 537:Footnotes 486:Seadragon 214:crankcase 210:crosshead 181:and some 102:and some 36:cylinders 1651:See also 1577:Compound 1452:Old Bess 1292:Blowback 1215:Cylinder 1201:Injector 1160:Stirling 1155:Sentinel 1069:Haystack 983:Cataract 956:Southern 946:Caprotti 821:Compound 646:(1897). 612:(1989). 586:Porpoise 573:Porpoise 523:actuator 372:MV  268:produces 98:such as 80:flywheel 68:cylinder 1367:History 1276:Surface 1094:Cornish 1054:Boilers 936:Corliss 873:Corliss 856:D slide 826:Uniflow 816:Cornish 468:Pompano 453:Pompano 445:Pompano 434:Pompano 425:Leipzig 408:Pompano 396:Pompano 387:Pompano 368:Amerika 353:Körting 333:Körting 283:Körting 270:power. 1679:(1784) 1673:(1769) 1639:(1908) 1633:(1862) 1614:(1812) 1606:(1805) 1596:Murray 1587:(1803) 1566:(1804) 1560:(1803) 1554:(1803) 1548:(1801) 1518:(1788) 1512:(1786) 1506:(1785) 1500:(1783) 1494:(1782) 1475:(1781) 1467:(1779) 1461:(1778) 1455:(1777) 1447:(1768) 1419:(1795) 1413:(1760) 1405:(1725) 1386:(1698) 1352:Stroke 1317:Piston 1302:Cutoff 1175:Yarrow 1127:Launch 1122:Scotch 883:Sleeve 878:Poppet 863:Piston 844:Valves 836:Valves 721:  677:  626:  458:Salmon 381:each. 295:Lenoir 88:petrol 86:(e.g. 76:piston 48:piston 34:, the 1285:Other 1089:Flued 1074:Wagon 998:Crank 941:Lentz 931:Baker 926:Allan 851:Slide 656:–113. 589:class 581:Perch 577:Shark 558:This 480:Sargo 471:' 437:' 404:class 402:Perch 136:gland 66:is a 62:in a 1437:Beam 978:Beam 888:Bash 868:Drop 811:Watt 719:ISBN 675:ISBN 624:ISBN 579:and 492:Gato 483:and 394:USS 385:USS 343:for 138:or " 90:and 1256:Jet 1084:Box 916:Joy 906:Gab 654:110 529:), 420:MAN 38:of 30:In 1729:: 733:^ 701:^ 618:. 575:, 517:A 443:. 379:hp 126:A 110:. 58:A 50:. 784:e 777:t 770:v 727:. 683:. 632:.

Index


Atmospheric beam engine
mechanical engineering
cylinders
reciprocating engines
working fluid
piston
reciprocating engine
cylinder
working fluid
piston
flywheel
internal combustion engines
petrol
diesel engines
external combustion engines
Stirling engines
steam engines
hydraulic rams

crank shaft
gland
stuffing box
steam engines

high-speed steam engine

Steam engines
atmospheric engines
beam engines

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