Engineering:Fiat JTD engine

From HandWiki
JTD/MultiJet engine
Overview
Manufacturer
Also calledFamily B engine: 4-cylinder Family C engine: 5-cylinder
Production1997–present
Layout
Block materialCast iron
Head materialAluminium alloy
Combustion
Fuel typeDiesel
Oil systemWet sump
Cooling systemWater-cooled

Multijet is Stellantis's term for its current common rail direct injection turbodiesel engine range. Most of the Fiat, Alfa Romeo, and Lancia range, as well as certain Chrysler, RAM Trucks, Jeep, and Maserati vehicles, are equipped with Multijet engines. Ownership of some Fiat Multijet designs is shared with General Motors as part of a settlement of the failed merger between the two auto conglomerates. The GM Powertrain Torino group in Turin, Italy, manages its interest in these engines. Some PSA Peugeot Citroën diesel engines are also rebadged JTD units, and vice versa.[citation needed] Fiat's common-rail diesel engine is also known as JTD, an initialism of Jet Turbo Diesel.[1]

Characteristics

The property that distinguishes the Multijet from previous generations of common-rail diesel engines from FCA is the combustion of the fuel, which is split into multiple injections, thus allowing for a more complete, quieter combustion in the cylinder. Compared to the first-generation JTD engines (Unijet system) which only featured a smaller pilot and a larger main injection, Multijet is capable of up to five injections per combustion cycle which enables better, more efficient cold running, better performance especially in the lower rev-range, quieter operation as well as even lower consumptions and emissions. The time between injections has been reduced to 150 microseconds while the minimal injection quantity has been reduced from two to less than one microlitre.

This enables even mid-sized sedans like the Alfa Romeo 156 and Lancia Lybra equipped with the 1.9L JTD to achieve fuel economy upwards of 45 mpgUS (55 mpgimp or 5L/100 km) on country roads and highways while offering an equal amount of torque as the 3.0L 24V V6 engine.

A sophisticated electronic control unit controls the injection and changes the injection logic and number of injections based on a multitude of parameters, most importantly revolutions per minute of the engine, engine torque requested by the driver and the temperature of the coolant.

The injection pressure of the diesel fuel on the second-generation Multijet is limited to between 1,400 bar (20,000 psi) on the 1.3 Multijet and 1,600 bar (23,000 psi) on the 2.4 Multijet 20V.

Multijet II

In 2009, Fiat Powertrain introduced the third generation of this technology, called Multijet II. With its new and innovative injectors with hydraulically balanced solenoid valve and even higher injection pressure of 2,000 bar (29,000 psi) it is capable of even more precise controlling of the injected diesel fuel, injecting it in a quicker and more flexible manner. It enables up to eight consecutive injections per combustion cycle and implemented Injection Rate Shaping technology, which provides two very close pilot injections making the fuel delivery more continuous and modulated.[2] This results in an engine that is quiet and has a smoother operation, lower emissions, better fuel mileage and higher performance compared to the previous generation.

Automotive engines

1.0

1.0 L
Overview
ManufacturerGeneral Motors
Also called
  • XSDE (Xtra Smart Diesel Engine)
  • Smartech Diesel
Production2011–2017
Layout
ConfigurationInline-3
Displacement936 cc (57.1 cu in)
Cylinder bore69.615 mm (2.74 in)
Piston stroke82.0 mm (3.23 in)
ValvetrainDOHC with roller finger followers
Compression ratio16.8:1
Combustion
Fuel systemCommon rail
Output
Power output57 bhp (43 kW; 58 PS)
Torque output150 N⋅m (111 lb⋅ft)
Dimensions
Length553.3 mm (21.78 in)
Width547.3 mm (21.55 in)
Height700.5 mm (27.58 in)
Dry weight130 kg (287 lb)

A 0.9 L (936 cc) 3-cylinder variant, (called XSDE, Xtra Smart Diesel Engine) or Smartech Diesel, was introduced in 2011. Co-developed by GM Powertrain Torino and the GM Technical Center India for the Indian market the engine is rated at 57 bhp (43 kW; 57 hp) of power and 150 N⋅m (111 lb⋅ft) of torque.[3]

Applications:

1.3 Multijet

1.3 L
Overview
ManufacturerFiat Auto (2003-2005)
Fiat Powertrain Technologies (2005-2011)
Fiat Group Automobiles (2011-2014)
FCA Italy (2014-present)
General Motors
Maruti Suzuki
Tata Motors
Also called
  • CDTI (Opel)
  • D13A DDiS 190 (Suzuki)
  • Multijet (Fiat)
  • Multijet 2 (Fiat)
  • Quadrajet (Tata)
  • Smartech TCDI (GM)
  • STD (DFSK)
Production2003–2024
Layout
ConfigurationInline-4
Displacement1,248 cc (76.2 cu in)
Cylinder bore69.6 mm (2.74 in)
Piston stroke82.0 mm (3.23 in)
ValvetrainDOHC
Compression ratio17.6:1
Dimensions
Dry weight140 kg (310 lb)

A small 1.3 L (1,248 cc (76.2 cu in)) version (called the SDE, Small Diesel Engine) introduced in February 2003[4] is produced in Bielsko-Biała, Poland ,[5] in Ranjangaon, Pune, India, by Fiat India Automobiles and Tata Motors joint venture plant since 2008,[6] and by Maruti Suzuki in Gurgaon, Haryana, India since 2012.[7][8] The Multijet 75 PS version was chosen in 2005 as the International Engine of the Year in the 1-litre to 1.4-litre category.

There are five versions of this engine: a 70 PS (51 kW; 69 hp), a 75 PS (55 kW; 74 hp) (used in the Fiat Punto, Panda, Palio, Albea, Idea, 500; Opel Corsa, Combo, Meriva; Suzuki Ritz, Swift; and Tata Indica Vista), a variable inlet geometry 90 PS (66 kW; 89 hp) (used in the Fiat Grande Punto,[9] Linea; Opel Corsa, Astra; Suzuki Ertiga, SX4; Tata Indigo Manza and Alfa Romeo MiTo), a 95 PS (70 kW; 94 hp) from the Multijet II generation,[10] and a 105 PS (77 kW; 104 hp) available on the Lancia Ypsilon. At the time of the launch this was the smallest four-cylinder diesel engine available and had a fuel consumption of 3.3 L/100 km (86 mpg‑imp; 71 mpg‑US) in some applications. The engine is able to meet Euro IV pollution standards without the use of a diesel particulate filter.[10]

In January 2008, Tata Motors introduced the new Indica Vista model, which features new Quadrajet branded version of this engine.[11] The second generation Ford Ka uses 1.3 Multijet named as Duratorq TDCi. In GM nomenclature, it is called Small Diesel Engine (SDE).

During 2009, Fiat launched a new generation badged Multijet II, with a new injection management system (up to 8 injections per cycle, instead of 5) and able to meet Euro V pollution standards.[12] It is available with several power outputs, from 75 PS (55 kW; 74 hp), with fixed geometry turbocharger, to 95 PS (70 kW; 94 hp), with variable geometry turbocharger.[13]

As of 2013, more than 5 million 1.3 MultiJet engines were produced.[14] In January 2020, the production of the 1.3 Multijet ended in India in both Maruti Suzuki plant and Fiat-Tata JV as the BS6 emission regulations come into effect in the country from 1 April 2020.[15] Fiat-Tata built a total of 800,048 engines over 12 years.[16]

Applications:

FCA

General Motors

PSA

Suzuki

Tata Motors

Others

1.5 Multijet

1.6 Multijet

1.6 L
Overview
Also calledMultijet (Fiat)
D16A DDiS (Suzuki)
Production2006–present
Layout
ConfigurationInline-4
Displacement1,598 cc (97.5 cu in)
Cylinder bore79.5 mm (3.13 in)
Piston stroke80.5 mm (3.17 in)

In 2006, Fiat Powertrain announced a downsized version of the 1.9 16V Multijet, a new 1.6L 16V Multijet (1,598 cc) with two power levels of 105 PS (77 kW; 104 hp) and 120 PS (88 kW; 120 hp) to replace the still-used 1.9L 8-valve engine. The new 1.6 Multijet diesel with 105 PS was released in December 2007, the 120 PS version arrived later in 2008.[17]

Applications:

FCA

General Motors

Suzuki

1.9

1.9 L
Alfa Romeo JTDm 159.jpg
JTDm engine cover of Alfa Romeo 159
Overview
ManufacturerFiat/GM
Also called
  • CDTI (Opel)
  • Multijet (Fiat)
  • Multijet 2 (Fiat)
  • TiD (Saab Automobile AB)
  • TTiD (Saab Automobile AB)
Production1997–present
Layout
ConfigurationInline-4
Displacement1,910 cc (117 cu in)
Cylinder bore82 mm (3.2 in)
Piston stroke90.4 mm (3.56 in)
Compression ratio18.5
Combustion
TurbochargerSome versions
Dimensions
Dry weight125 kg (276 lb) (Single turbo)

The most common JTD engine is the 1.9 L straight-4 found on various brands and models. The first car that used this engine was Alfa Romeo 156 in 1997 (105 PS, 77 kW, 104 hp), making it the world's first common-rail diesel passenger car. In 1999, it was introduced on the Fiat Punto JTD with a smaller, fixed-geometry turbocharger and 80 PS (59 kW; 79 hp), as well as in the Fiat Brava, Bravo and Marea range. There were also 85 PS (63 kW; 84 hp), 101 PS (74 kW; 100 hp), 105 PS (77 kW; 104 hp), 110 PS (81 kW; 110 hp), and 115 PS (85 kW; 113 hp) versions available. The engine block weighs approximately 125 kg (276 lb), the cylinder head features an overhead camshaft with directly actuated valves.

The Multijet second generation features an advanced common-rail system and is available with seven different power outputs. The 8-valve version has 101 PS (74 kW; 100 hp), 120 PS (88 kW; 120 hp), or 130 PS (96 kW; 130 hp) and the 16-valve version has 134 PS (99 kW; 132 hp), 138 PS (101 kW; 136 hp), 150 PS (110 kW; 150 hp), or 170 PS (130 kW; 170 hp). Except for the 101 PS Multijet, all engines feature a variable-geometry turbocharger.

Opel also uses a version of this engine. Their CDTI engine, manufactured in Pratola Serra, Italy and Kaiserslautern, Germany, is the product of the half-decade joint venture between GM and Fiat. It is used in the Vectra, Signum, Astra, Zafira, Cadillac BLS and Suzuki SX4 as well as some Saabs marked as TiD and TTiD (twinturbo version).

Applications

FCA

General Motors

Suzuki

Others
  • Alenia Aeronautica Sky-Y

SAIC Motor

Gallery

  • Right side view, from Saab 9-5

  • Left side view, from Saab 9-5

  • Dual overhead camshaft housing

  • Turbo charger with attachments from 9-5

Twin Turbo

Engine cover of Lancia Delta's 1.9 TT Multijet.

Fiat Powertrain Technologies released information about new two stage turbo (twin turbo) version of this engine in summer 2007, engine is available with two power levels, first one is producing 180 PS (130 kW; 180 hp) and second one 190 PS (140 kW; 190 hp), both have a maximum torque output of 400 N⋅m (300 lb⋅ft) at 2000 rpm. 180 PS version production started summer 2007. The engine weighs approximately 185 kg (408 lb). This engine will be sold both to Fiat Group Automobiles and other brands, but the 190 PS (140 kW; 190 hp) version is reserved only to Fiat Group Automobiles.[19]

Applications:

2.0 Multijet II

2.0 L
Alfa Romeo JTDm-2 giulietta.jpg
JTDm 2 engine cover of Alfa Romeo Giulietta
Overview
Manufacturer
Also called
  • CDTI (Opel)
  • TiD4 or TTiD4 (Saab)
  • GM Family B Ecotec Diesel engine (GM)
  • Multijet (Fiat)
  • Kryotec (Tata)
Production2008–present
Layout
ConfigurationInline-4
Displacement1,956 cc (119.4 cu in)
Cylinder bore83 mm (3.3 in)
Piston stroke90.4 mm (3.56 in)
Block materialCast iron
Head materialAluminum
ValvetrainDual overhead camshafts
Compression ratio16.5
Combustion
Fuel systemDirect injection
Fuel type
Oil systemWet sump
Cooling systemWater-cooled
Output
Power output110–192 hp (82–143 kW)
Torque output192–280 lb⋅ft (260–380 N⋅m)
Dimensions
Dry weight174–182 kg (384–401 lb)

A new 2 litre (1,956 cc, 83 mm bore, 90.4 mm stroke) Multijet diesel was introduced in third generation Lancia Delta in summer 2008. At its first version this engine produces 165 PS (121 kW; 163 hp). For 2009 the engine was fitted to Alfa Romeo 159 as 170 PS (125 kW; 168 hp) variant. Fiat Sedici, Suzuki SX4 and the new Fiat Doblò generation use a 135 PS (99 kW; 133 hp) variant of this engine.

GM Powertrain separately developed their diesel engines based on 1.9 JTD, after end of the GM and Fiat partnership,[20] and first was the 160 PS (120 kW; 160 hp) version for Astra and Insignia, which was later upgraded to 165 PS for Astra (163 PS in restyled version of Insignia), and less powerful version for Insignia with 110 PS and 130 PS. In 2011 GM Powertrain Europe developed a new derivative - the twin-turbocharger BiTurbo version, with 195 PS (143 kW; 192 hp), which is used in the Insignia and starting with 2013 in the Astra J. Internally the new engine is referred to as GM Ecotec Family B engine. The same engine was also available in the 2011 Saab 9–5 with 160 PS and 190 PS twin-turbo. In 2013 Opel introduced cleaner and more fuel efficient versions of the 2.0 CDTI engine and the ecoFLEX version, with 99 g/km of CO2 and 120 PS (140 PS for Insignia).[21]

Applications:

FCA

General Motors

SAIC Motor

Suzuki

Tata Motors

2.2 Multijet II

2.2 L
Overview
ManufacturerFiat (Pratola Serra plant)
Also called
  • Multijet II (Fiat)
Production2015-current
Layout
ConfigurationInline-4
Displacement2,184 cc (133.3 cu in)
Cylinder bore83.8 mm (3.30 in)
Piston stroke99 mm (3.9 in)
Block materialCast iron (die-cast Aluminium for Alfa Romeo)
Head materialAluminum
ValvetrainDual overhead camshafts
Compression ratio15.5:1
Combustion
TurbochargerVariable-geometry integrated in the exhaust manifold
Fuel systemCommon Rail
ManagementMultijet II (Magneti Marelli)
Output
Power output185–210 PS (136–154 kW; 182–207 hp)
Torque output440–470 N⋅m (320–350 lb⋅ft)

The 2.2 Multijet II (2,184 cc) was introduced by Fiat Chrysler in mid-2015.[22] These engines produce 185 PS (136 kW; 182 hp) and 200 PS (147 kW; 197 hp) with 440 N⋅m (320 lb⋅ft) of torque at 2500 RPM in the Jeep Cherokee. It was developed to offer more torque in the low-rev range compared to the 2.0L Multijet.[23] This engine further improves the existing 2.0 Multijet in various areas, such as a higher injection pressure (2,000 Bar instead of 1,600 Bar) with Injector Rate Shaping, an oil pump with variable displacement and counterbalance-shafts to reduce noises and vibrations.[24] This engine meets Euro 6 emission norms without the use of diesel exhaust fluid injection.

A 2.2 Multijet III (2,184 cc) was introduced by Stellantis on the Fiat Ducato in 2021 with 4 power outputs: 120, 140, 160, & 180 hp. It meets Euro 6d emissions standards.

A further development of this engine with a 2,143 cc displacement, and a die-cast Aluminium block, is used in the Alfa Romeo Giulia (952),[25] Alfa Romeo Stelvio, and Jeep Wrangler (JL).

Applications:

2.4

2.4 L
Alfa0038 JTD.jpg
Engine cover of an Alfa Romeo 166 2.4 JTD
Overview
ManufacturerFiat
Also called
  • Multijet (Fiat)
Layout
ConfigurationInline-5
Displacement2,387 cc (145.7 cu in)
Cylinder bore82 mm (3.2 in)
Piston stroke90.4 mm (3.56 in)
Block materialCast iron
ValvetrainOHC/DOHC
Compression ratio18,5
Combustion
Fuel systemDirect injection
ManagementBosch EDC15 Diesel Injection

The 2.4 L (2,387 cc) straight-5 version is based on the 2.4 124 PS (91 kW; 122 hp) 5 cylinder TD engine as used in the Mk1 Fiat Marea and the Mk1 Lancia Kappa. The JTD version benefits from the solid build of the TD block, and an improved head/injection system. There are 2 versions of the 2.4 JTD, the 10-valve as used in the Fiat Marea 130 JTD and the earlier Alfa Romeo 156/Alfa Romeo 166/Lancia Lybra diesels where it was available as 136 PS (100 kW; 134 hp), 140 PS (103 kW; 138 hp), 150 PS (110 kW; 148 hp) and later a Multijet 20-valve version 175 PS (129 kW; 173 hp) as used in the later (2003>) Alfa Romeo 156 as well as some Lancia vehicles.

It was designed for transverse front-wheel drive use and was deemed too long and tall for widespread use in other GM Ecotec or Fiat products. A newer Multijet variant of this engine, capable for 200 PS (147 kW; 197 hp), is used in the Alfa Romeo 159, Alfa Romeo Brera and Fiat Croma. The latest version of this engine produces 210 PS (154 kW; 207 hp) and 400 N⋅m (295 lb⋅ft) at 1500 rpm, and is used in Alfa Romeo vehicles.[26]

Applications:

3.0 V6 Multijet II

See VM Motori A 630.

Heavy-duty engines

2.3

2.3 L
Overview
Also called
  • Multijet (Fiat)
Layout
ConfigurationInline-4
Displacement2,287 cc (139.6 cu in)

The 2.3 Multijet (2,287 cc) was developed by Iveco for heavy-duty applications and is available in three versions 120 MultiJet (Sofim F1AE0481D), 130 MultiJet (Sofim F1AE0481N or F1AE6481D) and 150 MultiJet (Sofim F1AE3481E), these engines produce 120 PS (88 kW; 118 hp), 130 PS (96 kW; 128 hp) and 148 PS (109 kW; 146 hp) respectively.

Applications:

2.8

2.8 L
Overview
ManufacturerIveco
Also called
  • Multijet (Fiat)
Layout
ConfigurationInline-4
Displacement2,800 cc (170 cu in)

The 2.8 JTD (2,800 cc) made by Iveco (SOFIM) was used in second generation Fiat Ducato, it produces 127 PS (93 kW; 125 hp) or 146 PS (107 kW; 144 hp).

Applications:

3.0

3.0 L
Overview
ManufacturerIveco
Also called
  • Multijet (Fiat)
Layout
ConfigurationInline-4
Displacement2,998 cc (182.9 cu in)

The 160 MultiJet Power, introduced in 2007, saw displacement increased to 3.0 L (2,998 cc). This engine produces 157 PS (115 kW; 155 hp) or 177 PS (130 kW; 175 hp) in Fiat-badged models. In Iveco Massif this engine is also available as 176 PS (129 kW; 174 hp) version.

Applications:

See also

  • Fully Integrated Robotised Engine
  • Fiat Global Small Engine
  • Fiat Pratola Serra modular engines

Notes

  1. ↑ autobild.de: JTD - Lexikon - autobild.de, accessdate: 19. June 2019
  2. ↑ "Diesel Injection Rate Shaping". https://www.iav.com/sites/default/files/handouts/2014/en-us/diesel-injection-rate-shaping.pdf. 
  3. ↑ Raja, Shrawan (Jul 23, 2011). "Chevrolet Beat XSDE SMARTECH engine". Indian Autos Blog. http://indianautosblog.com/2011/07/chevrolet-beat-xsde-smartech-engine. 
  4. ↑ "Third generation FIRE engine: the 1.3 Multijet 16v". Italiaspeed.com. 7 February 2003. http://www.italiaspeed.com/news_2003/news_2003_029_multijet/news_2003_029multijet_3.html. 
  5. ↑ "Archived copy". http://www.italiaspeed.com/2005/cars/fiat/11/1300_multijet/3011.html. 
  6. ↑ "Fiat, Suzuki ink pact for Multijet - News". Autocar India. 2012-01-19. http://www.autocarindia.com/News/287592,fiat-suzuki-ink-pact-for-multijet.aspx. 
  7. ↑ Raj, Shally Seth Mohile,Amrit (2014-07-17). "Maruti Suzuki extends deal with Fiat for sourcing diesel engines" (in en). https://www.livemint.com/Industry/dvBiQbkYe19xMY1VPSgADK/Maruti-extends-deal-with-Fiat-for-sourcing-diesel-engines.html. 
  8. ↑ Khan, Faisal (2012-01-25). "Maruti Suzuki To Setup Diesel Engine Plant In Gurgaon" (in en-US). https://www.motorbeam.com/maruti-suzuki-to-setup-diesel-engine-plant-in-gurgaon/. 
  9. ↑ "Fiat Grande Punto: A very comprehensive array of sophisticated engines and gearboxes". Italiaspeed.com. http://www.italiaspeed.com/new_models/2005/fiat/grande_punto/engines.html. 
  10. ↑ 10.0 10.1 "Fiat Punto Evo: Technological innovation". Fiat Group Automobiles Press. 29 September 2009. http://www.fiatpress.com/press/detail/10690. 
  11. ↑ "Tata Motors launches new vehicle models at the New Delhi Auto Expo" (Press release). Tata Motors. January 9, 2008. Archived from the original on February 27, 2012. Retrieved 2008-01-10.
  12. ↑ "The new 1.3 Multijet II 95 HP (Euro5) engine is making its first appearance on the Fiat 500 and 500C". Fiat Group Automobiles Press. 25 November 2009. http://www.fiatgroupautomobilespress.com/index.php?lng=2&group=1&method=cartelle&action=zoom&id=4594. 
  13. ↑ "Four millionth 1.3 MultiJet 16V diesel engine is built at Fiat powertrain's Poland factory". Italiaspeed.com. 2011-02-09. http://www.italiaspeed.com/2011/cars/others/fiat_powertrain/02/multijet_4_million_poland/0902.html. 
  14. ↑ "5 million 1.3 MultiJet engines produced". Fiatpress.com. http://www.fiatpress.com/press/article/115529. 
  15. ↑ "Fiat 1.3L Multijet 'National Engine' production ends in India". 24 January 2020. https://www.autodevot.com/2020/01/fiat-1-3l-multijet-national-engine-production-ends-india/. 
  16. ↑ "End of an era: 1.3L MultiJet diesel engine production stopped at FCA-Tata Motors plant". 25 January 2020. https://indianautosblog.com/13l-multijet-diesel-engine-production-stopped-fca-tata-motors-plant-p319553. 
  17. ↑ "The new Fiat Bravo has already hit its full year sales targets". italiaspeed.com. 2007-09-27. http://www.italiaspeed.com/2007/cars/fiat/09/bravo_sales/2609.html. 
  18. ↑ Kim, Chang-Ran (June 27, 2011). "Suzuki to use Fiat engines for new car from 2013". reuters.com. https://www.reuters.com/article/fiat-suzuki-idUSLDE75Q1O220110627. 
  19. ↑ "New engine 1.9 JTD twin stage turbo". fptpowertrain.com. http://www.fptpowertrain.com/eng/pdf/Comunicato_uk.pdf. 
  20. ↑ "Vehicles Engines Introduction". General Motors Company. 2011. http://gmpowertrain.com/EuropeVehicleEngines/IntroductionEurope.aspx. 
  21. ↑ "The New Opel Insignia – The Engine and Infotainment Revolution". http://media.opel.com/content/media/intl/en/opel/news.detail.html/content/Pages/news/intl/en/2013/opel/06-12-new-opel-insignia.html. 
  22. ↑ YouTube: (1) NEW JEEP CHEROKEE 2.2 MULTIJET 2015 - PREMIÈRE AND FIRST TEST DRIVE - YouTube, accessdate: 19. June 2019
  23. ↑ ABMnews (16 June 2015). "Paolo Pallotti Engine Engineering Technical Director at Fiat Powertrain Technologies". https://www.youtube.com/watch?v=uU5D6UillG0. 
  24. ↑ "Jeep Cherokee, debutta il nuovo diesel FCA 2.2 da 185 e 200 CV - Il Fatto Quotidiano". 22 June 2015. http://www.ilfattoquotidiano.it/2015/06/22/jeep-cherokee-debutta-il-nuovo-2-2-turbodiesel-fca-che-sara-anche-sullalfa-giulia/1802293/. 
  25. ↑ "YouTube". https://www.youtube.com/watch?v=rH1UinmCk_4. 
  26. ↑ "Alfa Romeo at the 77th Geneva International Motor Show 2007". alfaromeopress.com. 2012-04-06. http://www.alfaromeopress.com/press/article/805. 

References



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