| 词条 | GM small gasoline engine | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 释义 |
| name = Small Gasoline Engine | image = File:Opel_Motor_B10XFT_Einlass-Seite_Aufgeschnitten.jpg | manufacturer = General Motors MG Motor Shanghai Automotive Industry Corporation Hirata Corporation | aka = Microtec | production = {{Start date|2013}}–present | predecessor = S-TEC Family 0 | successor = | configuration = Straight-3, Straight-4 | displacement = {{unbulleted list | {{convert|999|cc|L cuin|1|order=flip|abbr=on}}|{{convert|1117|cc|L cuin|1|order=flip|abbr=on}}|{{convert|1399|cc|L cuin|1|order=flip|abbr=on}}|{{convert|1490|cc|L cuin|1|order=flip|abbr=on}}}} | bore = {{convert|74|mm|in|2|abbr=on}} | stroke = {{unbulleted list | {{convert|77.4|mm|in|2|abbr=on}}|{{convert|81.3|mm|in|abbr=on}}|{{convert|86.6|mm|in|2|abbr=on}}}} | block = Aluminium | head = Aluminium | valvetrain = DOHC 4 valves x cyl. | compression = 10.0:1 - 12.5:1 | turbocharger = Mitsubishi Heavy Industries one-stage single-scroll (some versions) | fuelsystem = {{unbulleted list|Sequential multi-port FI|Direct injection}} | management = | fueltype = {{unbulleted list|CNG|E85|E100|Gasoline|LPG}} | oilsystem = Wet sump | coolingsystem = Water cooled | power = {{convert|75|-|165|PS|kW hp|0|abbr=on}} | specpower = | torque = {{convert|70|-|184|lbft|Nm|0|abbr=on}} | redline = 6500 | width = | height = | weight = {{convert|216|lb|kg|0|abbr=on}} }}{{Anchor|LSE1|L3G}} The GM Small Gasoline Engine (SGE) is a family of small-displacement three- and four-cylinder gasoline engines ranging from 1.0 L to 1.5 L, developed by Adam Opel AG, Shanghai Automotive Industry Corporation (SAIC), MG Motor (MG), Shanghai GM (SGM) and the Pan-Asia Technical Automotive Center (PATAC).[1] The new global family is designed to improve fuel economy, performance, and emissions, reduce noise and vibrations. To achieve this, it features lightweight design and advanced technologies like gasoline direct injection, turbocharging, variable length intake manifold and alternative fuel compatibility. It utilizes modular approach with interchangeable components that can be suited to specific application. The initial engine variants include {{convert|999|cc|L cuin|1|order=flip|abbr=on}} I3 DI DCVCP turbo {{convert|77.4|mm|2|abbr=on}} stroke, {{convert|1118|cc|L cuin|1|order=flip|abbr=on}} I3 PFI {{convert|86.6|mm|2|abbr=on}} stroke, {{convert|1399|cc|L cuin|1|order=flip|abbr=on}} I4 DI DCVCP turbo {{convert|81.3|mm|2|abbr=on}} stroke and {{convert|1490|cc|L cuin|1|order=flip|abbr=on}} I4 PFI {{convert|86.6|mm|2|abbr=on}} stroke. All are derived from just two blocks (three and four cylinder) sharing a common {{convert|74|mm|2|abbr=on}} bore with {{convert|81|mm|2|abbr=on}} bore spacing. Mitsubishi Heavy Industries provides one-stage single-scroll turbocharger.[2] To aid with NVH (Noise, vibration, and harshness) levels the direct injection fuel rail mounts to the cylinder head and valve cover via bushings that isolate that loud ticking noise the injector pintles make. GM claims that the 1.0-liter turbo is 25 percent (3 dBA) quieter than the Ford Fiesta’s 1.0-liter turbo, and the 1.4-liter is up to 50 percent (6 dBA) quieter than the VW/Audi 1.4-liter turbo. Other silencing measures include a bed-plate cylinder block that increases stiffness, a stiffened aluminum front cam cover. Three-cylinder variants get a counter-rotating (engine-speed) balance shaft that’s integrated with the oil pump and located inside the two-piece aluminum oil pan to prevent radiated noise. GM assure the EcoTec triple will idle more smoothly than Ford’s three-cylinder, which does not use a shaft.[2] All turbocharged variants will provide 90 percent of their max torque between 1500 and 5000 rpm, with peak power arriving between 5600 and 6000 rpm. The MHI turbos are sized to provide quick torque response, and are mounted very close to the cylinders, thanks to cylinder heads that incorporate the exhaust manifolds in the head.[2] To reduce mass, the engines are compact in all directions, made almost entirely of aluminum, and feature composite intake manifolds. This removes {{convert|44|lb|kg|0}} from the existing 1.4-liter turbo in the Cruze and makes it {{convert|8|lb|kg|0}} lighter than the 1.4-liter VW turbo. GM say this engine weighs {{convert|216|lb|kg|0}}, ready for installation.[2] The engines will first debut in the 2014 Opel Adam [3] and will be produced in Szentgotthárd, Hungary[4][5] and GM's Flint Engine plant.[6] The new engine family will spread to other brands and markets by the end of the decade and will replace three separate engine families (S-TEC, Family 0, and Family 1). The engine is used in:
The assembly lines for North American facilities were manufactured by Hirata Corporation at their powertrain facility in Kumamoto, Japan. I41.4LV7The LV7 is the multi-point fuel injection 1.4L naturally aspirated variant of the SGE engine, with a {{convert|74x81.3|mm|2|abbr=on}} bore and stroke for a total capacity of {{convert|1399|cc|L|1|order=flip|abbr=on}}. Compression ratio is 10.6:1 and the engine can run on regular unleaded grade gasoline. Assembly is in Changwon, South Korea.
LE2The LE2 is the direct-injection 1.4L turbocharged variant of the SGE engine, with a {{convert|74x81.3|mm|2|abbr=on}} bore and stroke for a total capacity of {{convert|1399|cc|L|1|order=flip|abbr=on}}. Compression ratio is 10.0:1 and the engine can run on regular grade gasoline. The LE2 is also paired with Start-Stop technology in some vehicles.
1.5L3AThe L3A is the direct injection 1.5L naturally aspirated variant of the SGE engine used in the second generation Chevrolet Volt, with a {{convert|74x86.6|mm|2|abbr=on}} bore and stroke for a total capacity of {{convert|1490|cc|L|1|order=flip|abbr=on}}. Compression ratio is 12.5:1 and the engine can run on regular unleaded grade gasoline. Maximum engine speed is 6000 RPM.
LFVThe LFV is a direct-injection cast aluminum DOHC 1.5 L turbocharged SGE variant, with a {{convert|74x86.6|mm|2|abbr=on}} bore and stroke for a total capacity of {{convert|1490|cc|L|1|order=flip|abbr=on}}. Compression ratio is 10.0:1 and the engine can run on regular unleaded grade gasoline. Maximum engine speed is 6500 RPM. Automatic Start-Stop is available with this engine. Assembly is in Shanghai (China), Toluca (Mexico), Spring Hill (Tennessee) and Flint (Michigan).
LYXThe LYX is a direct-injection cast aluminum DOHC 1.5 L turbocharged SGE variant, with a {{convert|74x86.6|mm|2|abbr=on}} bore and stroke for a total capacity of {{convert|1490|cc|L|1|order=flip|abbr=on}}. Compression ratio is 10.0:1 and uses regular unleaded gasoline.
Opel
See also
References1. ^{{cite web|url=http://media.gm.com/media/us/en/chevrolet/news.detail.html/content/Pages/news/us/en/2011/Oct/1012_gas_eng |title=Future Chevrolets to Benefit from Small Gas Engine Family |publisher=Media.gm.com |date=2011-10-12 |accessdate=2012-05-29}} 2. ^1 2 3 "General Motors Details New Modular I-3, I-4 Engines" 3. ^http://media.opel.com/media/intl/en/opel/news.detail.html/content/Pages/news/intl/en/2012/opel/07_11_opel_adam.html 4. ^{{cite web|url=http://media.gm.com/media/intl/en/opel/news.detail.html/content/Pages/news/intl/en/2010/OPEL/09_21_Opel_Expands_Engine_Production_in_Hungary |title=Opel Expands Engine Production in Szentgotthárd, Hungary |publisher=Media.gm.com |date=2010-09-21 |accessdate=2012-05-29}} 5. ^Autonews: New Opel minicar set to debut small engine co-developed with China's SAIC 6. ^1 {{cite web|last1=Loveday|first1=Eric|title=Official: 2016 Chevy Volt To Get 1.5-Liter, 4-Cylinder Range Extender|url=http://insideevs.com/2016-chevy-volt-get-1-5-liter-4-cylinder-range-extender/|website=Inside EVs|accessdate=28 October 2014}} 7. ^http://www.carnewschina.com/2014/10/06/this-is-the-mg-gt-for-the-chinese-car-market/ 8. ^http://media.gm.com/media/us/en/gm/news.detail.html/content/Pages/news/us/en/2015/jul/0720-encore.html
External links{{Commons category|General Motors Small Gasoline engine}}
2 : General Motors engines|Opel engines |
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