汽车之家|关干致炫发动机的介绍（要有英文基础） 1.3还是1.5？|YARiS L 致炫|论坛

关干致炫发动机的介绍（要有英文基础） 1.3还是1.5？

1 22 发布于 2014-03-06 23:28:27 只看楼主修改帖子

关干致炫发动机的介绍

The Toyota NR engine family is a straight-4 piston engine series. The NR series uses aluminum engine blocks and DOHC cylinder heads. It also uses SFI fuel injection, and has 4 valves per cylinder with VVT-i or Dual VVT-i.

1 1NR-FE

2 2NR-FE

3 3NR-FE

4 4NR-FE

5 5NR-FE

6 6NR-FE

7 7NR-FE

8 References

1NR-FE

The 1NR-FE is a compact straight-4 piston engine featuring "Stop & Start" technology and Dual VVT-i. It was introduced into European market in late 2008 with the Yaris XP9F. Improved engine performance combined with low emissions and fuel consumption was the principal aim during its development.

Advanced engineering has been applied throughout the 1NR-FE engine. Toyota engineers streamlined the engine's intake channel, used computer simulation to optimise airflow, smoothened all surfaces for less turbulence and rounded off all angles and sharp edges inside the engine. One of the key elements of the 1NR-FE engine is its piston design. Smaller and lighter than on the previous 1.3 unit, they are designed with a smaller contact area and use carbon ceramide, an advanced material commonly used in Formula One engineering, to reduce friction. The engine also features cooled exhaust gas recirculation (cold area specification models only) to reduce pumping losses and reduce NOx emissions.

Technical specifications of the engine:

Displacement: 1,329 cc (81.1 cu in)

Bore x Stroke: 72.5 mm × 80.5 mm (2.85 in × 3.17 in)

Max. Output: Euro 4 Version: 74 kW (99 bhp) at 6000 rpm, Euro 5 Verion: 73 kW (98 bhp) at 6000 rpm

Max. Torque: Euro 4 Version: 132 N·m (97.4 lb·ft) at 3800 rpm, Euro 5 Version: 128 N·m (94.4 lb·ft) at 3800 rpm

Compression Ratio: 11.5:1

Valve Mechanism: 16-valve DOHC, Chain Drive (with Dual VVT-i)

Fuel Injection System: EFI

Ignition System: Direct Ignition System

Emission Regulation: Euro 4 (Complies with Euro 5 after optimizations introduced in July 2010)

Engine Service Mass (incl. coolant & oil): 89.5 kg (197 lb)

6200 RPM Red Line

Applications:

Toyota Auris

Toyota Corolla

Toyota Etios Liva

Toyota iQ

Toyota Ractis

Toyota Urban Cruiser

Toyota Verso-S

Toyota Yaris

2NR-FE

A 1.5 (1495 cc) variant of the NR series engine. First introduced in Q4 of 2010 for the Toyota Etios. It is the first new engine Toyota developed for over 8 years without VVT-i. Done to reduce cost for the low-cost Toyota Etios. A new innovation that made its introduction on this engine is the integration of the exhaust manifold into the cylinder head[1] to reduce emissions.

Technical specifications of the engine:

Displacement: 1496 cc

Max. Output: 66 kW (90 PS) at 5600 rpm

Max. Torque: 132 N·m (97 lbf·ft) at 3000 rpm

Applications:

Toyota Etios (sedan)

3NR-FE

A 1.2 (1197 cc) variant of the NR series engine. First introduced in Q2 of 2011 for the Etios Liva.

Technical specifications of the engine:

Displacement: 1197 cc

Max. Output: 59 kW (80 PS) at 5600 rpm

Max. Torque: 104 N·m (77 lbf·ft) at 3100 rpm