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to power naval ships, generating 184 kW per cylinder. The final model in the range was launched in 1988. This was the PA4 200 VGA for rail and naval applications, producing 165 kW per cylinder with a single-stage turbo. Specific versions for submarines were also developed: the PA4 185 SM,
385:
In 1972, SEMT introduced the PC4 engine. It had a 570 mm bore and produced 990 kW per cylinder. With the PC4.2 version in 1981, it increased to 1,215 kW per cylinder. The PC4.2 B long-stroke model in 1985 raised the output to 1,325 kW per cylinder. In its 18-cylinder version,
410:
Launched at the end of the 1950s and initially developing 110 kW per cylinder at 1,500 rpm, the PA4, with an initial 185 mm bore, was a completely new design. It would later be developed with a VG version (variable geometry combustion chamber) and subsequently with a 200 mm bore to
442:
In 1995, SEMT launched the final engines in the series, the PA6 B and high-speed PA6 B STC in 1995, providing increases in power and overall performance. The PA5 was launched in 1981 to meet an initial market demand from the
Japanese fishing fleet. A dual-fuel version would later be developed
374:
Later in the 1960s, SEMT launched the PC2 engine line. Though it kept the same 400 mm bore, power output was increased to 310 kW per cylinder – an increase that became a regular feature of the engine's improvements in its subsequent versions: the PC2.3 in 1971, PC2.5 in 1973 and the
434:
The UIC approved the PA6 in 1971 and the first engines were produced in 1972. In 1975, the high speed PA6 BTC for naval ships in 1975 was introduced. In 1981, the PA6 CL long-stroke engine with reduced fuel consumption was released. In 1988, the PA6 STC, which used sequential
398:
The PA engines were high-speed units, running at more than 1,000 rpm. The initial PA1 and PA2 models could be seen as miniature versions of the PC engines, with a bore of 175 mm, and could be used for a wide range of applications – including powering
604:
Japanese licensee
Niigata identified strong demand among the country's fishing fleet – requiring an engine that would fit the trawlers exactly. The result was the design and development of the PA5, with a 255 mm bore.
289:
to become the sole shareholder of SEMT. Then, in 2010, the diesel engine and turbo machinery activities were merged. The S.E.M.T. branding remains, and is protected, but no longer appears as a company name.
250:
The aim of the new company was to develop new engines in France that could be licensed internationally. In 1948, the first licenses were supplied to licensed engine building companies worldwide.
622:
The PA4 unit with a 185 mm bore was designed specifically for the locomotive market. Over 44,2% of all the engines produced in the history of SEMT were destined for locomotives.
379:. This final version featured a cast-iron engine mounting, a simpler design and a power output of 750 kW per cylinder – four times the power of the original model from 1953.
638:
The PC engines for diesel-fueled electricity generating plants were installed throughout Japan, having numerous islands that need to be autonomous in terms of power production.
274:
In 1976, Alsthom-Atlantique was the flagship of French industry. The conglomerate became the majority, which also owns the Saint-Nazaire mechanical facility and a factory at
635:(EDF) began using SEMT engines for its diesel-powered plants in the 1950s. EDF later equipped plants in France's overseas territories and dominions with 18 PC4.2 V engines.
760:
375:
550 kW per cylinder PC2.6 in 1981. A dual-fuel version (gas and diesel) was also developed, while the range had its final addition in 1995 with the PC2.6B
538:
326:
367:, Mali. With a bore of 400 mm, the engine developed 180 kW per cylinder. Its first marine application for the PC1was in 1955, aboard the
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263:. The equipment, which enabled the company to speed up the development of a new range of engines, was later transferred to
72:
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In 1966, planning started for the PA6. It was designed to be the most powerful engine that could be fitted to a standard
79:
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compressors – given the particular constraints in terms of air aspiration and exhaust gases within a submarine. The
382:
In 1969, the PC3 engine was launched. It had a 480 mm bore with a power output of 700 kW per cylinder.
46:
302:
86:
485:
469:
173:, and merchant ships. Its customers included France, the United States, Russia, India, and other countries.
68:
320:
182:
473:
275:
580:, increasing the reliability of the engine and therefore the safety of the entire propulsion system.
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647:
359:. The first unit to go into series production was a six-cylinder, in-line engine (6 PC1 L) for the
286:
387:
376:
553:
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In 1951, SEMT developed the first PC1 engine. In 1953, the PC1 was modified to be powered by
279:
93:
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338:
132:
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614:(268 meters) were mounted on rubber pads to reduce noise and vibrations in the cabins.
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increase the power. A dual-fuel version (diesel fuel and gas) would also be developed.
356:
498:
the
Durance class of oil tankers (one of which was built in Australia as HMAS Success)
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523:
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360:
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195:
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144:
610:
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SEMT. Pielstick engines were used in many countries for backup power supplies to
590:
549:
368:
35:
573:
568:, leading to the SM versions of the PA4 185 and 200. These were equipped with
166:
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During its existence as an independent company, SEMT manufactured engines for
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17:
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100% of
Pielstick's shares are held by MAN and became the sole shareholder.
565:
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219:
534:
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260:
545:
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SEMT has provided PA and PC engines for many French naval vessels
407:
version of the PA developed 46 kW per cylinder at 1,250 rpm.
131:
537:, The 16-cylinder PC2.5 STC engine were used by the USN for the
680:
Shares are shared equally by
Alsthom, MAN and MTU (33.3% each).
541:
troop transporters, which are each equipped with four engines
278:, was renamed S.E.M.T. Pielstick after the company's founder,
29:
704:"Engines we supply for - Pielstick and MAN 48/60 Spare Parts"
730:
544:
The PA and PC engines have been used by
Australia, China,
522:(Sawari II program) and the Sigma class frigates for the
414:
In 1978, the PA4 VGDS was launched. It had a twin-stage
419:
PA4 200 SM, and PA4 200 SMDS with twin turbo-charging.
576:
also minimized the pressure variations created by the
253:In 1951, after its relocation at La Courneuve, the
181:SEMT. was created in 1946 by France's ministry for
143:was a French company that designed and built large
60:. Unsourced material may be challenged and removed.
215:Société des chantiers et ateliers Augustin Normand
608:The nine-cylinder PC20 engines developed for the
533:Engines, SEMT engines have been purchased by the
185:production by combining five national companies:
285:In 2006, MAN purchased the shares belonging to
386:the latter model was one of the most powerful
227:Société des Ateliers et Chantiers de Bretagne
8:
630:
597:) traditionally use medium-speed PC engines,
518:SEMT provided engines to the Saudi F 3000 S
256:Société Générale de Constructions Mécaniques
254:
237:
225:
213:
201:
191:Société des chantiers et ateliers de Penhoët
189:
148:
298:SEMT licensees that produce their engines:
203:Société Générale de Construction Mécaniques
327:Doosan Heavy Industries & Construction
600:Smaller vessels use high-speed PA engines
120:Learn how and when to remove this message
151:Société d’Etudes des Machines Thermiques
695:
552:, Indonesia and Russia, along with the
155:(Company of Thermal Machines Studies).
564:The PA4 engine was adapted for use by
332:Shaanxi Diesel Heavy Industry – China
7:
761:French companies established in 1946
158:Founded in 1948, SEMT was bought by
58:adding citations to reliable sources
642:Auxiliary power for nuclear plants
25:
439:for naval ships, was introduced.
34:
445:electricity generating stations
429:International Union of Railways
45:needs additional citations for
746:Engine manufacturers of France
335:Hudong Heavy Machinery – China
1:
660:The actions are shared in 3:
548:, India, the United Kingdom,
317:Niigata Power Systems – Japan
361:electricity generating plant
259:was equipped with the first
239:Société des aciéries du Nord
756:Diesel engine manufacturers
751:Marine engine manufacturers
390:on the market in its time.
777:
443:(diesel fuel and gas) for
371:ship Borée (two engines).
27:Rolling stock manufacturer
514:Other naval surface ships
456:French Navy surface ships
303:Kawasaki Heavy Industries
539:San Antonio-class LPD 17
509:Landing Platform Docks.
267:and thesubsequently to
631:
321:Fairbanks Morse Engine
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653:Shareholder evolution
632:Electricité de France
611:Sovereign of the Seas
314:Diesel United – Japan
147:. Its full name was
135:
626:Thermal power plants
54:improve this article
526:(2 x 20 PA6B STC).
451:Major installations
388:four-stroke engines
341:Oil Engines - India
593:, cargo ships and
431:(UIC) locomotive.
377:long-stroke engine
276:Jouet-sur-l’Aubois
138:
731:www.pielstick.com
554:Japan Coast Guard
486:P400 patrol boats
169:, naval vessels,
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16:(Redirected from
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69:"SEMT Pielstick"
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466:Georges Leygues
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323:– United States
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725:External links
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664:49% by Alsthom
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357:heavy fuel oil
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71: –
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65:Find sources:
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43:This article
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711:. Retrieved
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673:25.5% by MAN
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495:repair ship;
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416:turbocharger
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403:. The first
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346:Engine lines
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208:La Courneuve
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171:power plants
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110:January 2024
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52:Please help
47:verification
44:
618:Locomotives
550:South Korea
493:Jules Verne
369:French Navy
265:Saint-Denis
167:locomotives
740:Categories
713:2024-01-21
690:References
574:compressor
566:submarines
560:Submarines
401:submarines
183:industrial
160:MAN Diesel
80:newspapers
667:25.5% by
578:sea swell
476:frigates;
339:Kirloskar
294:Licensees
261:test beds
529:Through
520:frigates
479:the A69
220:Le Havre
162:in 2006
535:US Navy
507:Ouragan
474:Horizon
470:Floréal
311:– Japan
305:– Japan
177:History
94:scholar
546:Canada
503:Foudre
481:avisos
365:Bamako
244:Denain
232:Nantes
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75:
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684:2006:
678:1990:
658:1987:
101:JSTOR
87:books
505:and
501:the
491:the
464:the
136:Logo
73:news
669:MTU
363:of
309:JFE
287:MTU
56:by
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