SGE Engines

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    Windy
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    SGE Engines

    Post by Windy on Fri Aug 09, 2013 3:35 am

    Vauxhall have released details of their version of the SGE (Small Gasoline Engine)  (or SAIC GM Engine).  MG will be using SGE engines in some cars within two years, there is no information to suggest it will have the same specification as the Vauxhall version, or even the same number of cylinders but it is interesting to see the details anyway.  The MG versions will be built by SAIC in a new factory currently under construction at the port base at Lingang Shangahi.  There is also no reason to think that they will use the same transmissions.

    Also interesting is that this is essentially a British designed engine.



    VAUXHALL ADAM’S NEW ENGINE GIVES A TRIPLE PUNCH



    ◾New 115PS 1.0-litre turbo raises bar for three-cylinder refinement
    ◾First in new family of small-displacement direct injection petrol engines
    ◾Higher torque than 1.6-litre engine
    ◾Cylinder head-integrated exhaust manifold
    ◾Teamed with new six-speed gearbox
    ◾30 per cent lighter than predecessor

    Luton – Vauxhall unveil an all-new high-tech 1.0-litre three–cylinder petrol engine at next month’s Frankfurt International Motor Show, ahead of its debut in the ADAM city car next year.

    The 1.0-litre turbo petrol, known as SGE (small gasoline engine), represents a new benchmark for refinement in three-cylinder engines, with noise, vibration and harshness (NVH) characteristics superior to many four cylinder units.

    Developing 115PS, the pocket powerhouse delivers generous low-end torque of 166Nm all the way from 1,800 to 4,700rpm, belying its small size.

    The 1.0-litre spark ignition direct injection (SIDI) turbo generates more torque throughout its operating range than equally powerful, higher displacement engines, while fuel efficiency is improved by 20 per cent compared with the current 1.6-litre naturally aspirated unit that powers the Astra.

    Set to appear first in the stylish ADAM next year with an all-new six-speed gearbox, the 12-valve, 1.0-litre turbo is the first in a new, modular family of three and four-cylinder Vauxhall petrol engines up to 1.6-litres.

    State-of-the-art technologies such as direct injection, continuously variable valve timing, and a lightweight aluminium cylinder-block, are key to the engine’s efficiency. Vauxhall expects the new engine family to deliver impressive fuel economy and CO2 emissions significantly lower than 100g/km.

    “In developing this small engine, we not only set out minimise fuel consumption and CO2 emissions. We also wanted to demonstrate that three cylinders can be just as refined as four or more,” said Dr. Matthias Alt, Chief Engineer, Small Gasoline Engines. “We tackled at source the balance, noise and vibration issues typical of conventional three-cylinder engines, and we’re confident customers will be pleasantly surprised by the results. This is a very lively and refined three-cylinder engine which doesn’t compromise driving fun.”

    Engineered for class-leading acoustics

    Vauxhall engineers started with a clean sheet of paper, which enabled a series of measures to eliminate the typical, ‘off-beat’ running characteristics which have traditionally accompanied three-cylinder engines.

    The die-cast aluminium cylinder block is designed to reduce radiated and structure-borne engine noise, as well as reduce weight. The high-pressure fuel rail and injectors are also isolated from the cylinder head to minimise the transmission of pulsing, while the fuel pump and fuel line are acoustically treated.

    Another major contributor to refinement is the installation of a balancer shaft in the oil sump. Driven by a chain with inverted teeth for quiet running, the counter-rotating shaft spins at crankshaft speed and is carefully mass-optimized to offset the inherent vibrations from a three cylinder operation.

    Other noise attenuation measures include: acoustically-optimized covers for the top and front of the engine, the intake manifold and camshaft housings; crankshaft isolation with iron main bearing inserts; inverted teeth for camshaft drive chains; a low-hiss turbo compressor; and a lower oil pan in steel.

    As a result of these engineering features, the new 1.0 SIDI Turbo is not only more refined than other three-cylinder engines, but also quieter than many four-cylinder units. For example, in bench testing at full throttle, it emits lower noise levels across all engine speeds than similarly powerful gasoline turbos up to 1.6-litres displacement.  Its inherent refinement is so good, that the need for additional in-car sound insulation, or complex engine mountings and sub-frames, is significantly reduced.

    Strong power and torque

    The 1.0 SIDI Turbo also packs a punch, generating more torque than Vauxhall’s current 1.6-litre, naturally-aspirated engine, as well as the same 115PS maximum power output.

    Jewel-like precision engineering is used in the integration of the exhaust manifold inside the aluminium cylinder head, which is bolted directly to the low-inertia, water-cooled turbocharger. This compact installation contributes to the delivery of a fast boost charge for strong, low-end power. Maximum torque of 166Nm from just 1,800 rpm is almost 30 per cent higher than the 1.6-litre engine generates at the same rpm.

    The six-hole fuel injectors are centrally located above each piston to provide efficient combustion, and dual cam-phasing enables variable valve timing for optimum engine breathing. A twin displacement oil pump and a switchable water pump, which is disengaged when the engine coolant is cold in order to accelerate warm-up, also contribute to low fuel consumption.

    All-new, weight-saving six-speed gearbox

    The 1.0 SIDI Turbo is mated to an all-new, six-speed manual gearbox specially designed for medium torque applications. With a dry weight of only 37kg, it is about 30 per cent lighter than its current counterpart. It is also extremely compact, measuring just 375mm along its axis.

    Featuring superior shift quality, with a short lever travel and low shifting effort, the new transmission incorporates many of the refinements recently introduced on Vauxhall’s next-generation gearboxes. These include gears with wide, asymmetrically-cut dog teeth, and triple-cone synchronizers for first/second gear, with double cones for third/fourth. Reverse gear is also synchronized.

    The new gearbox will be used in a broad range of small and sub-compact Vauxhall vehicles with engines rated at up to 220Nm torque. For optimum powertrain efficiency in each application, the matrix of gearing choices comprises 12 sets of gear ratios and seven final drives.

    Next step in Vauxhall’s powertrain renewal program

    The launch of the 1.0-litre SIDI Turbo and its new six-speed gearbox is the latest step in the renewal of Vauxhall’s powertrain portfolio, which will see three new engine families and 13 new engines introduced between 2012 and 2016, plus a host of new transmissions.

    The program began with the launch of the first engines in new mid-size petrol and diesel families. These 1.6-litre turbo units are now joined by the 1.0-litre turbo, as the first example of new, small displacement engine family. All will be built at GM’s new Szentgotthard plant in Hungary, where petrol and diesel engines are produced on a shared assembly line.

    New generation Vauxhall power plants are focused on meeting a growing customer demand for ‘downsized’ engines which are able to deliver reduced fuel consumption and CO2 emissions, in combination with the power and refinement typical of larger displacement engines.





    Source:  http://media.vauxhall.co.uk/content/media/gb/en/vauxhall/news.detail.html/content/Pages/news/gb/en/2013/vauxhall/08-07-vauxhall-adam-a-triple-punch.html
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    patpending

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    Re: SGE Engines

    Post by patpending on Fri Aug 09, 2013 6:53 am


     “In developing this small engine, we not only set out minimise fuel consumption and CO2 emissions. We also wanted to demonstrate that three cylinders can be just as refined as four or more,” said Dr. Matthias Alt, Chief Engineer, Small Gasoline Engines. “We tackled at source the balance, noise and vibration issues typical of conventional three-cylinder engines, and we’re confident customers will be pleasantly surprised by the results. This is a very lively and refined three-cylinder engine which doesn’t compromise driving fun.”
    Dr Matthias Alt appears not to exist except in this press release, but it is clear that Opel's engine development centre is in Rüsselsheim so the Adam engine is German-engineered.


    Rüsselsheim - The Opel car maker also wants to set up at the end of 350 engineers. Of this, 300 the International Technical Development Center (ITDC) in Rüsselsheim are used, the other in the development center in Turin, the Adam Opel AG announced...



    In ITDC engineers will work according to the specifications in the vehicle and the engine and transmission development."These settings are ... another commitment of our parent company General Motors 'German Engineering'," said Chief Development Officer Michael Ableson.
    The development center at the Opel headquarters receive additional tasks. In addition, the auto giant General Motors intends  To use more synergies between the Group's brands, especially between Buick and Opel. Experts criticize for some time that GM, unlike Volkswagen about not closely integrated its various brands and then uses synergies. Volkswagen builds cars of different brands with standardized parts on assembly platforms - which lowers the cost.
    More cooperation with the parent company, General Motors
    That should change, especially in the area of ​​engine and transmission development. In April Opel Chairman Neumann had said: "In Rüsselsheim, engines and transmissions for Europe and the whole world will be developed This step gives us global responsibility in engine development.." At that time, GM had announced plans to invest over the next three to four years, 230 million euros in the development center of the daughter.
    The development center benefits from the appreciation, Ableson said: "This will guarantee the long-term position of the ITDC as an integral part of the global GM network development." Also total council chief Wolfgang Schäfer-Klug spoke of a really good message: "Not only for the development center, but for the Rüsselsheim and the company overall." Now the future tasks would have to be substantiated with regard to the joint development of Opel vehicles with Peugeot.Purpose being negotiated in the coming months.





    http://translate.google.co.uk/translate?sl=auto&tl=en&prev=_t&hl=en&ie=UTF-8&u=http://www.manager-magazin.de/unternehmen/autoindustrie/opel-stellt-350-ingenieure-fuer-fahrzeug-und-motorenentwicklung-ein-a-914326.html

    snifferdog1

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    Re: SGE Engines

    Post by snifferdog1 on Tue Aug 13, 2013 11:36 am

    So are we expecting the 3 to get this engine?
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    Re: SGE Engines

    Post by Windy on Tue Aug 13, 2013 1:15 pm

    snifferdog1 wrote:So are we expecting the 3 to get this engine?
    Yes, the MG3, and the MG5, and probably the MG6 hybrid. We don't actually have any of those cars yet though!

    I expect the existing 1.5 NSE to remain available as a cheap option for some time though.
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    Re: SGE Engines

    Post by Windy on Tue Aug 13, 2013 1:20 pm

    patpending wrote:
    Dr Matthias Alt appears not to exist except in this press release, but it is clear that Opel's engine development centre is in Rüsselsheim so the Adam engine is German-engineered.
    The original press release said:

    "Engineering and development of the new engine will be carried out jointly by GM and SAIC engineers in Detroit and at the Pan Asia Technical Automotive Center (PATAC), the automakers’ engineering and design joint venture in Shanghai. "

    I guess Luton may have done the job that Anting and Pukou did for the NSE? (Built at Pukou and testing at Anting, I think.)

    We will probably never know the truth.

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    Re: SGE Engines

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