Subaru Legacy

The level opposite turbo-diesel engine with which the essence of the technology of Subaru was brought together in the 08-year Geneva show performed from March 6 is announced. Mr. Hideo Matsuda has test-ridden the legacy of the new engine loading which aimed at coexistence with environment and the pleasure which runs in Spain. It is a thing of a sale schedule [ in Europe ] after show. Instantly, it was made to have the precious experience reported.
It being announced in the Geneva show in March, and being sold as it is in Europe has determined the legacy which carries the level opposite diesel engine (2l. turbo) used as the first in the world. And it is told to the next of legacy that it is carried also in Forester.
Why does Subaru challenge a diesel now? The reason is in dieselizing of the Europe car market. At around 2.0l. segments, such as the present and legacy, 70 percent is a diesel engine loading vehicle for some countries. It is expected that it becomes 50 percent or more even in Germany. That is, importance is attached to it being a diesel first on a sales strategy. It will not become a match if it is not a diesel.
Then, although it is said three years ago in Subaru that development of the diesel engine was begun, it can be said that the technical capabilities of Subaru finished so far in the short period of only that are in a considerable level. What kind of mechanism does it have with the boxer diesel engine?
I will hear that horizontally opposed engine has turned [ be / for the members of development of Subaru / it / a fair wind ] to the diesel remarkably. That is, the history for becoming a diesel engine is good from the first.
As to what kind of thing it is, in order that a piston on either side may carry out symmetrical movement, the balancer of horizontally opposed engine for there being the characteristic of negating a mutual explosion vibration and negating an indispensable vibration for an in-series type or V type diesel is unnecessary. At least this can reduce remarkable friction (frictional resistance).
It is carrying out happy [ of the thing with a crankshaft comparatively shorter than other engine types and high rigidity ]. The body which can catch just the intense explosion torque generated from a high compression ratio. In the case of a diesel engine, if this crank rigidity is important and this is low, by intense explosion torque, a twist will occur on a crank and it will cause condition, such as vibration.
Subaru with the firm belief which can cope with a rigid problem adopted the cylinder block made from an aluminum alloy, and succeeded also in a weight saving and miniaturization.
The compression ratio of this engine is 16.3 to 1. It could be called a number very average as a diesel engine (usually 15 to around 17). The highest prime & maximum torque pressed out from there is set to 150ps / 3600rpm & 350Nm / 1800rpm. One should notice a horsepower output and maximum torque generated from low rotation.
This is peculiar to a diesel car and the engine limiter of this car actually operates at 4800rpm.
The number of rotations of 4800rpm feels thing insufficient with some frustrations for the driver who got used to the gasoline engine and was familiar with it. However, condition like surging that it takes for approaching an end common to a diesel engine also in that highest rotation region in the case of this boxer diesel, and a rotation rise becomes astringent is not felt almost. Therefore, an engine limiter is touched at the moment of thinking ハッ, and many cases of a rise shift will be experienced confusedly.
The missions only of 5 速 MT for exclusive use are. A gearshift is made shorter 10mm than a gasoline vehicle, and it has become a clever feeling. The time lag of an upshift can be made smaller than before, and it can use up, without making thick torque useless.
If this timing that will say also in a certain meaning and the new shift technique of a diesel, or is different again as for a gasoline engine is held, it can run sportily quite pleasantly.
The suspension is tuned up in the direction where a spring and a damper are somewhat harder. Therefore, handling is very much sporty. power steering is used also for Forester's NA system -- it is electromotive. Although it is said that it is difficult for electric power steering to make a natural feeling, in the legacy of diesel engine loading, it is almost comfortable.
It is a thing when it asked the members of development, that Forester and this legacy boxer diesel were performing initial development in Europe. It is strangely convinced in Forester's feeling of operation having been excellent indeed, just because it was electric power steering of the Europe 仕込.
When asking environment nature, the opportunity to display CO2 emissions has increased. An engine good for environment with terrible it is a standard as it is generally 140g or less per kilometer. The boxer diesel has attained the value as wonderful as 148g/km.
A system called a common-rail was adopted as the latest diesel engine, and this improved the performance of the diesel engine at a stretch. A common-rail refers to piping just before supplying fuel to in ジェクター. Fuel is accumulated by high pressure here and fuel is directly injected in a cylinder by fine control from in ジェクター. And it is clean and little combustion of futility is obtained.
Although a boxer diesel is also this common-rail method, of course, not an expensive ピエゾ type but the newest cheaper ソレノイド type is adopted as injection-of-fuel equipment. When it estimates at sale in Japan where next year and the year after next are spoken about, in a natural thing, the further cost reduction is an important matter of future diesel development.
Anyway, sale in Japan is long in coming. Because it is full and is said no less than 1100km anyway that it will run.
Subaru Legacy