Analyze 1.8THP turbocharged direct injection engine

With the global start of the Chengdu Auto Show, the new Dongfeng Peugeot 508 announced the first time it will carry 1.8THP turbocharged direct injection engine, as the latest achievement under the E strategy, 1.8THP more powerful power and more efficient data performance "StrongerThanStronger" is more appropriate than that. Just like the iPhone6 ​​and iPhone6Plus, which are now highly sought after, the new 508 with 1.8THP and 1.6THP will also meet the power demands of different consumers. In particular, the addition of 1.8THP will undoubtedly expand the momentum of the new 508 to a new height.

Prospective technology is easy to understand

With the continuous improvement of Dongfeng Peugeot's product system and consumers' demand for power boosting, the larger-capacity turbocharged engine is capable of enhancing the Dongfeng Peugeot flagship model's new 508 power performance and satisfying consumers' passionate driving experience. 1.8THP turbocharged engine Compared to 1.6THP turbocharged engine, the increase in displacement brings more full power. At the same time, its core technology is the same as that of the 1.6THP engine, including the twin-scroll turbocharger, direct fuel injection, and variable valve timing. It is the key technology that not only brings the most direct and enjoyable driving. Feelings, fuel economy is also worth noting.

The 1.8THP turbocharged engine uses Twinscroll twin scroll single turbocharger technology, with a maximum output power of 150kw/5500rpm and a maximum output torque of 250Nm/1400rpm-4000rpm, exceeding the benchmark 2.0T level. This technology can achieve a 7-8% increase in turbine efficiency and a 5% increase in combustion efficiency. Twinscroll twin turbo single turbocharger combines the 4-cylinder exhaust 1, 4, 2, and 3 into a turbine, avoiding the turbulence caused by the traditional single vortex tube, improving the gas filling efficiency, and providing stronger power performance. At the same time, smaller, lighter-weight turbines will work faster under the influence of exhaust gas. They can work at 1,000 rpm, peak torque at 1500 rpm, no delay, and faster acceleration at low RPM. , and maintain a strong continuous output.

The direct injection technology of the 1.8THP turbocharged engine optimized the fuel injection system. The injection pressure reached 20 MPa. The pressure value was high, the fuel atomization was good, the fuel particles were small, the oil and gas mixture was more fully, and the combustion was more thorough. At the same time, a high-pressure fuel rail with sensor and a nozzle with damping are used, fuel injection is more accurate and stable, and the combustion efficiency is increased, thereby increasing output torque and power.

The CVVT continuously variable intake timing system, all-aluminum lightweight design, lightweight piston assembly, ECU control continuously adjustable displacement oil pump and other fuel-saving technologies, and electronically controlled thermostats and clutch pumps, etc. The electronic control equipment works together to meet the STT intelligent start-stop system, its fuel consumption is superior to the mainstream 1.8T standard, achieves high environmental protection, meets Euro V emission standards, and can be adapted to Euro VI emission standards.

Reliability can be peace of mind

The 1.8THP turbocharged engine squeezes extreme power while still maintaining excellent engine reliability. Compatible with 1.6THP turbocharged engine technology, leading peers' technology has passed the test of 2 million 1.6THP turbocharged engine users all over the world, resulting in durable, reliable and adaptable technical features. 1.8THP turbocharged engine Through a strict process and rigorous selection of materials, the design life can reach 240,000 kilometers, minus 32 degrees can also start normally.

The 1.8THP turbocharged engine has been performing a "song of ice and fire" during its operation. The turbines of turbocharged engines are generally affected by high-temperature exhaust gas and extremely high rotational speeds. They have high ambient temperatures. If the flame is turned off immediately when the vehicle is running, the entire vehicle cooling system will stop the cooling water circulation and the turbine will easily be damaged at high temperatures. The 1.8THP turbocharged engine is double-cooled with a turbocharged turbine system. In addition to the normal oil lubrication cooling, electronic cooling pumps continue to delay work after the engine is stopped to cool the turbine system. Some models can't be extinguished after they stop, and the embarrassing situation that needs to continue cooling occurs.

The 1.8THP turbocharged engine also features a pre-embedded cast-iron cylinder liner that is highly heat-resistant and highly resistant to corrosion and friction compared to cast aluminum cylinder liners. In addition, the use of special materials and processes such as DLC coating and light weight aluminum alloy pistons will enhance the service life of the engine.

1.8THP turbocharged engine ultimate high efficiency power performance, excellent long-lasting reliability can be shocking, as the "E action strategy" strongest core, 1.8THP turbocharged engine will be the first to be loaded on the new flagship model of the Dongfeng Peugeot brand new 508, by then What kind of driving experience will be brought about by the new 508, which has been boosted by leaps and bounds, we will wait and see!