Volkswagen’s new car engine. The series is also the first use of engine four-cylinder engine in the engine cylinder deactivation system and have a distinct advantage
on the improve fuel economy
1.EA211 series engine
EA211 engine series there are four, namely: 1.4L four-cylinder turbocharged engine, 1.6L four-cylinder naturally aspirated engine, three-cylinder naturally aspirated engine 1.0L, 1.2 L of four-cylinder turbocharged engine.
2.EA211 new engine characteristics
a new feature: a further reduction in weight
different from the cast iron cylinder block EA111, EA211 plus cast iron engine block made of aluminum in the form of liner, which also makes EA211 reduce the 22 kg weight. According to the official public reports, of which 22 kg can reduce the fuel economy of up to 20 percentage. Further crankshaft its light weight percentage of 20, but also the link 30 about the percentage of light, the crankpin into the hollow piston has become flat, all of which measures are to reduce the curb weight of the engine, in order to save energy . In addition to the engine itself, EA211 more compact, and its installation length is shortened 50mm, which correspondingly increases the interior passenger space.
two new features: “reverse type” Optimization
EA211 engine “reverse type” once again using a timing belt to replace the timing chain EA111. In fact, the two are not advanced presence or absence of relationship, there is no substitute and substituted say, all its advantages it. Timing chain and long service life, low failure rate, although the life of the timing belt is less than the timing chain, but its low noise, low driving resistance, inertia, power loss can be reduced less.
three new features: an exhaust gas turbocharger system [123 ]
1.4TSI turbocharger and an exhaust pipe of the engine using the integrated (integrated to the cylinder head) design, this allows the exhaust gas to the turbine becomes short stroke, turbo lag can slow to some extent, and allows higher catalytic exhaust gas temperature quickly into operation, the exhaust gas catalytic efficiency improves.
New characteristics of four: dual-circuit cooling system
on the thermal management system, EA211 equipped with advanced bis loop cooling system. Is simply a cylinder head and the cylinder block each have theirThe cooling circuit. Due to the different cylinder head and cylinder block in which the ambient temperature, but also has its own optimum operating temperatures, each with varying sets of temperature cooling system helps keep the engine operating at peak performance and improve fuel economy.
five new features: in-cylinder high-pressure injection technology
on the maximum injection pressure EA211 up to 100bar, in particular 1.4TSI engine nozzle 6 is taken nozzle hole pattern can be effectively prevented or at wide open throttle during the pre-catalytic converter, the beam covers the entire top of the piston the oil, to further ensure a straight cylinder combustion efficiency spray.
six new features: ACT active cylinder management system
In fact, this system is based on AVS Audi variable valve lift technology comes change. The so-called variable valve lift technology, whether you are AVS or i-VTEC or VVT, works much the same: to change the valve lift cam by switching two different angles. Active management technology cylinder and ACT, you can simply understood as a camshaft in which the two different angles, the angle not replace the camshaft to achieve the effect of closing cylinders.
