Imported brand new engine

● Fiat MultiAir engine 2.4 l

     The first time I saw this Fiat 2013 engine is on the show, but surprising is that this engine is actually put on the Jeep booth, engine nameplate was shocked to read the following from this 2.4-liter engine equipped with Fiat Jeep liberty in light models.

 

Before we make an article named breathing tract article, Universal Turbo which describes the technique developed by various manufacturers in the gas distribution system links the engine is used, which take advantage of the technology-led electro-hydraulic variable phase timing technology is big most people know, however, there are also individual manufacturers to use their own ways to achieve functional variable timing, Fiat has launched a variable timing technology is that more special.

   On the surface structure, which is an engine SOHC (single overhead camshaft) structure, according to conventional thinking judge, each cylinder of this engine should have only two valves (responsible for the intake and exhaust), but this is a reality with four-valve engines, a camshaft driven by a chain responsible for driving the exhaust-side valve, in theory, can be achieved if the assembly of its conventional phase adjuster after the discharge side of the variable timing capabilities, However, this engine is not equipped with the technology.

Also located on the intake side 2 of the valve is controlled by an electromagnetic hydraulic valve, by adjusting the hydraulic system can achieve not only to adjust the valve opening time, but also to achieve a stepless adjustment of the valve lift, in order to control the cylinder intake gas, in other words, MultiAir technology can replace the traditional throttle device.

  Mounted on a Jeep liberty light 2.4 liters MultiAir engine's maximum power of 184 hp / 6250rpm, maximum torque of 232 N • m / 4800rpm, 4 cylinder 2.0 turbocharger combined with 9AT gearbox use, Jeep liberty light MIIT measured combined consumption of 8.8 l / one hundred kilometers, one hundred kilometers of high-speed road fuel consumption of 7.6 liters under, for a mid-sized SUV models, such as fuel consumption can be acceptable.

To sum up:

     MultiAir technology is when technology is an alternative, breaking the traditional structure of the gas distribution system, relying on hydraulic drive to open the valve to achieve stepless adjustment of the valve timing and lift of the many variable. We can say that the 2.4L MultiAir engine and gearbox with transverse 9AT be regarded as a golden combination.