43:
51:
31:
168:
Internal combustion engines using crossheads make for easier maintenance of the top end of the engine, since the pistons can be easily removed. The piston rod is mounted on the underside of the piston and connected to the crosshead by a single nut in double acting engines. The large two-stroke
133:(and thus the direction the force is applied) moves from side to side with the rotary motion of the crank. These transverse forces are tolerable in a smaller engine. A larger engine's much greater forces would cause an intolerable degree of wear on the piston and
177:
battleships: 12 MAN double-acting 2-stroke 9-cylinder diesels). Large diesels often have a plunger oil pump directly attached to the crosshead to supply oil under high pressure to the crosshead bearing.
105:
ratio on such engines, the connecting rod would hit the cylinder walls and block the engine from rotating if the piston was attached directly to the connecting rod like on
312:
160:) on which the small end of the connecting rod pivots. In this way, the transverse forces are applied only to the crosshead and its bearings, not to the piston itself.
366:
241:, the crosshead was a strong metal bar attached to the piston rod and perpendicular to it, which was sometimes used to eliminate transverse forces, as in a
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in part due to the difficulty of manufacturing guide rails. The cross head was made possible by the introduction of the
811:
195:
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42:
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194:- steam is applied to both sides of the piston, which requires a seal around the piston rod. An exception is the
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can be mounted either to one guide mounted above the crosshead or to two, one above and one below (called an
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152:), allowing it only to move in the same direction as the piston travel. The crosshead also houses the
109:. Therefore, the longitudinal dimension of the crosshead must be matched to the stroke of the engine.
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are usually of this pattern. A crosshead is essential in a double-acting diesel engine (see also:
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is attached to the piston and links it to the crosshead, which is a large casting sliding in
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since it has two "jaws"). The former was preferred in many more modern locomotives.
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Sliding pin joint in a slider-crank linkage, commonly used in engine pistons
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directly, but this transmits sideways forces to the piston, since the
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30:
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288:"The Two Stroke Crosshead Diesel Engine Crosshead Pin and Slippers"
130:
89:) and reciprocating compressors to eliminate sideways force on the
344:
900:
637:
245:, and at other times used as a linkage—to side-rods in a
122:
97:
to freely move outside the cylinder. Because of the very small
90:
419:
201:
Early double-acting steam engines, such as those designed by
137:, as well as increasing overall friction in the engine.
269:
in which the lateral force of the piston is eliminated
198:
which can be double acting and yet has no crosshead.
337:. Cambridge, MA, USA: The M.I.T. Press. p. 101.
190:, a crosshead is essential if the engine is to be
34:A crosshead as part of a reciprocating piston and
1308:
163:
360:
367:
353:
313:"3.2.2. Piston (reciprocating) compressor"
213:which was suited for producing guides.
49:
41:
29:
1242:Glossary of steam locomotive components
14:
1309:
348:
332:
290:. Marinediesels.info. Archived from
57:Nunlow; crosshead and two slide bars
24:
1094:National Museum of Scotland engine
249:engine or to connecting rods in a
93:. Also, the crosshead enables the
25:
1343:
374:
232:
196:oscillating cylinder steam engine
1276:List of steam technology patents
335:A Short History of Machine Tools
181:
1261:Murdoch's model steam carriage
1247:History of steam road vehicles
326:
305:
280:
216:
13:
1:
1188:Murray's Hypocycloidal Engine
273:
911:Return connecting rod engine
7:
835:Condensing steam locomotive
256:
164:Internal combustion engines
112:
10:
1348:
1142:"Coalbrookdale Locomotive"
1234:
1205:
1178:
1159:
1148:"Pen-y-Darren" locomotive
1113:
1066:
1019:
1010:
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958:
949:
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825:
817:Single- and double-acting
797:
767:
719:
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645:
636:
552:
480:
427:
418:
382:
987:Newcomen Memorial Engine
117:On smaller engines, the
1291:Timeline of steam power
1286:Stationary steam engine
1169:Woolf's compound engine
1076:Soho Manufactory engine
931:Steeple compound engine
598:straight line mechanism
207:parallel motion linkage
46:Cylindrical trunk guide
1296:Water-returning engine
1270:Lean's Engine Reporter
1043:Chacewater Mine engine
916:Six-column beam engine
63:mechanical engineering
58:
47:
39:
1332:Linkages (mechanical)
1322:Bearings (mechanical)
1136:London Steam Carriage
333:Rolt, L.T.C. (1965).
315:. Drucklufttechnik.de
237:In many 19th century
171:marine diesel engines
79:reciprocating engines
75:slider-crank linkages
53:
45:
33:
1082:Bradley Works engine
906:Reciprocating engine
729:Babcock & Wilcox
572:Centrifugal governor
239:marine steam engines
73:used as part of the
36:slider-crank linkage
623:Sun and planet gear
227:alligator crosshead
186:In the case of the
83:internal combustion
1123:Richard Trevithick
721:Water-tube boilers
535:Gresley conjugated
59:
48:
40:
1317:Engine technology
1304:
1303:
1230:
1229:
1109:
1108:
793:
792:
693:Fire-tube boilers
548:
547:
16:(Redirected from
1339:
1327:Locomotive parts
1254:fardier à vapeur
1088:Whitbread Engine
1049:Smethwick Engine
1017:
1016:
956:
955:
775:Feedwater heater
643:
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263:Crosshead piston
223:steam locomotive
221:Crossheads in a
146:crosshead guides
71:mechanical joint
21:
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994:Fairbottom Bobs
979:Newcomen engine
973:
945:
891:Expansion valve
864:
850:Watt's separate
821:
789:
763:
715:
687:
632:
608:Parallel motion
544:
495:Stephenson link
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383:Operating cycle
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55:Hudswell Clarke
28:
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18:Crosshead guide
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1029:Kinneil Engine
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1001:Elsecar Engine
998:
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921:Steeple engine
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780:Feedwater pump
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646:Simple boilers
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628:Watt's linkage
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577:Connecting rod
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243:steeple engine
234:
233:Marine engines
231:
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205:, relied on a
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119:connecting rod
114:
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95:connecting rod
26:
9:
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1129:Puffing Devil
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1115:High-pressure
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1068:Rotative beam
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968:Savery Engine
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941:Working fluid
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618:Rotative beam
616:
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595:hypocycloidal
593:
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388:
387:
385:
381:
377:
376:Steam engines
370:
365:
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336:
329:
314:
308:
294:on 2018-10-14
293:
289:
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230:
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199:
197:
193:
192:double acting
189:
182:Steam engines
179:
176:
172:
161:
159:
155:
151:
147:
143:
138:
136:
132:
128:
124:
120:
110:
108:
107:trunk engines
104:
100:
96:
92:
88:
84:
80:
76:
72:
68:
64:
56:
52:
44:
37:
32:
19:
1281:Modern steam
1268:
1253:
1215:Porter-Allen
1194:
1128:
1055:
1035:
992:
926:Safety valve
880:
855:"Pickle-pot"
749:Thimble tube
334:
328:
317:. Retrieved
307:
296:. Retrieved
292:the original
282:
236:
226:
220:
200:
191:
188:steam engine
185:
167:
157:
149:
139:
116:
66:
60:
1012:Watt engine
812:Oscillating
768:Boiler feed
613:Plate chain
592:Tusi couple
505:Walschaerts
390:Atmospheric
217:Locomotives
154:gudgeon pin
1311:Categories
1221:Ljungström
1207:High-speed
1100:Lap Engine
1056:Resolution
960:Precursors
845:Kirchweger
807:Locomotive
754:Three-drum
734:Field-tube
701:Locomotive
683:Lancashire
603:Link chain
587:Crankshaft
554:Mechanisms
482:Valve gear
319:2013-07-22
298:2013-07-22
274:References
247:side-lever
203:James Watt
142:piston rod
127:crankshaft
121:links the
38:mechanism.
1252:Cugnot's
1195:Salamanca
896:Hydrolock
881:Crosshead
827:Condenser
663:Egg-ended
67:crosshead
1235:See also
1161:Compound
1036:Old Bess
876:Blowback
799:Cylinder
785:Injector
744:Stirling
739:Sentinel
653:Haystack
567:Cataract
540:Southern
530:Caprotti
405:Compound
257:See also
253:engine.
158:wristpin
150:slidebar
135:cylinder
131:crankpin
125:and the
113:Overview
81:(either
77:of long
951:History
860:Surface
678:Cornish
638:Boilers
520:Corliss
457:Corliss
440:D slide
410:Uniflow
400:Cornish
175:H-class
1263:(1784)
1257:(1769)
1223:(1908)
1217:(1862)
1198:(1812)
1190:(1805)
1180:Murray
1171:(1803)
1150:(1804)
1144:(1803)
1138:(1803)
1132:(1801)
1102:(1788)
1096:(1786)
1090:(1785)
1084:(1783)
1078:(1782)
1059:(1781)
1051:(1779)
1045:(1778)
1039:(1777)
1031:(1768)
1003:(1795)
997:(1760)
989:(1725)
970:(1698)
936:Stroke
901:Piston
886:Cutoff
759:Yarrow
711:Launch
706:Scotch
467:Sleeve
462:Poppet
447:Piston
428:Valves
420:Valves
251:square
211:planer
123:piston
103:stroke
91:piston
869:Other
673:Flued
658:Wagon
582:Crank
525:Lentz
515:Baker
510:Allan
435:Slide
156:(US:
148:(UK:
87:steam
69:is a
1021:Beam
562:Beam
472:Bash
452:Drop
395:Watt
101:-to-
99:bore
65:, a
840:Jet
668:Box
500:Joy
490:Gab
85:or
61:In
1313::
140:A
368:e
361:t
354:v
322:.
301:.
20:)
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