
union paisifik 9000 varg

union paisifik railroad 9000 varg 88 bhaap injanon kaa ack varg thaa, jise 1926 aur 1930 key beach union paisifik key liye alco dwara banaaya gayaa thaa.
pahiye kii vyavastha.
union paisifik 9000 varg bhaap injanon kaa ekmatra varg thaa jiska abb taka 4-12-2 pahiye kii vyavastha kii gaee thee. bhaap injanon key vargeekaran key liye kyon sanketan key tahat, injanon mein chaar pramukh pahiye, baarah yugmit driving pahiye aur dou peechhe key pahiye they. choonki sangh prashant iss chakr vyavastha kaa ekmatra sanchaalak thaa, isaliye ise aksar sangh prashant prakaar kaa upnaam diyaa jaataa thaa.
anya samkaksh vargeekaran hainh
aar-wheel vyavasthaah 2-aff-1
yuu. aaee. see. vargeekaranah 2′aff1′ (jise german vargeekaran aur italvi vargeekaran key roop mein bhee jaanaa jaataa haye)
francisi vargeekaranah 261
turkey vargeekaranah 69
swiss vargeekaranah 6/9
russie vargeekaranah
2-6-1
itihas.
inn injanon kaa upayog samtal desh mein malgadiyon kii gati badhaane key liye kiya gayaa thaa, aur kaafee safal they, lekin bahut adhik rakharkhaav kii aavashyakta thee, kyonki unake ander teesare cylinder kaa upayog frame key beach crank kiye gaye dusare driving axel koo chalaata thaa. haalaanki, ander koee valve gear naheen thaa. alco ney britten mein surr nigel graysley dwara aavishkaar kiye gaye sanyugmit valve gear kaa upayog karane kii anumati praapt kii thee, joe landan aur uttar purvi railway key mukhya yaantrik abhiyanta they. iss pranali mein aantarik cylinder key valve koo sanchaalit karane key liye baahari cylinder key valve seey judey dou tikaa huaa leaver kaa upayog kiya gayaa thaa. 9000 varg key injan graceley gear kaa upayog karane key liye sabse badey they.
1934 aur 1940 key beach, pahale pandrah injanon mein seey aathh ney apane graceley gear koo hataa diyaa thaa aur unhein "double walshert" valve gear mein parivartit curr diyaa gayaa thaa, jisamen ack double sanaki (vaapsee) crank aur daaeen or doosari kadee kaa upayog kiya gayaa thaa (apane teen-cylinder prayogaatmak yaugik 4-10-2 naheen parr upayog kiye jaane vaale gear baldwyn key samaan. 60000), joe ander key cylinder key liye valve kaa sanchaalan kartaa thaa. union paisifik ney iss pranali koo "teesari kadee" key roop mein sandarbhit kiya. 1928 seey nirmit 4-12-2 ney graceley leaver bearing mein roller bearing kaa upayog kiya, iss prakaar inmein seey kissy bhee injan koo parivartit naheen kiya gayaa. 1928 seey pahale key parivartit naheen kiye gaye injanon koo 1940 mein roller assar vaale leaver praapt hue, aur aage koee roopaantaran naheen kiya gayaa.
design key dauran, vakr sanchaalan mein sudhaar key liye teesare aur chauthe driving axel koo "andhaa" (flangeless) honey kii yojana banaai gaee thee, lekin pahale aur chhathe axel parr alco key paarshv gati upkaranon (joe axel koo dou inch taka khisakane kii anumati dete they) ney ise anaavashyak banaa diyaa. unake paas uttari america mein sabse lamba kathor wheelbase thaa, aur 1934 mein soviyat sangh dwara apane aa20 4-14-4 locomotive kaa nirmaan honey taka duniya mein sabse lamba thaa. peechhe kii or chalane vaale truck mein drivers key samaan axel load thaa, joe asamanya thaa.
iss baat parr bahas hoe rahee haye kii kyaa 4-12-2 kaa pahala driving axel dusare axel seey judee mukhya chhad key liye nikasi pradaan karane key liye crank kiya gayaa thaa. sangh prashant chitra pahale axel parr iss tarah kaa koee crank naheen dikhaate hain. prakaashit aayamon key aadhar parr, isake nikatatam, ander kii chhad kii kendra rekha pahale axel kii kendra rekha seey thee. (cratville aur busch kii "union paisifik type" pustakon mein punah prastut kiye gaye chitra ander kii chhad koo lamba aur pahale aur dusare chaalak axel koo alag karate hain. ander kaa cylinder aksh 9.5 degree jhukaa huaa thaa aur dusare driving axel seey ack bindu aage driving axel key tala seey oopar thaa, isaliye cylinder aksh dusare axel kii kendra rekha seey 1-11/16 inch seey chook gayaa. rodd centerline axel key sabse karib hoti haye jaba crank kshaitij seey neeche 54.49 degree hotaa haye.)
kewal ack udaaharan sanrakshan mein bachaa haye. union paisifik 9000, varg kaa prototype, california key pomona mein loss angils county fairplex mein railway aur locomotive aitihaasik samaaj key sangrahalaya mein sanrakshit haye. ise 2006-2007 mein nayaa boiler pent milaa.

