Home » News » Nissan » New Nissan 1.2-litre 3-cylinder Supercharged Engine

Nissan is introducing a new 1.2-litre 3-cylinder supercharged engine named the HR12DDR which aims at being the lowest fuel consuming gasoline engine in the world.

The new 1.2-litre 3-cylinder supercharged engine has the same output as a 1.5-litre unit, while CO2 emission level is 95 grams per Km.

Some info regarding the technology behind the new Nissan 1.2-litre 3-cylinder supercharged engine says that the Miller cycle was adopted meaning the power stroke is enhanced by the compression stroke and the thermal energy of the fuel is converted into kinetic energy more efficiently than in a regular 4-stroke cycle engine.

The supercharger on this new Nissan 1.2-litre 3-cylinder engine is fitted with an on/off clutch while the hydrogen-free coating for the piston rings and the variable displacement oil pump help reduce friction by up to 30 percent.

For more details regarding the new 1.2-litre 3-cylinder supercharged Nissan engine available below the jump.

Nissan press release :

YOKOHAMA (July 16, 2010)-Nissan Motor Co., Ltd. today announced its newly developed HR12DDR, a 1.2 liter engine, aiming to achieve the lowest level of fuel consumption in the world for gasoline-powered cars, with an engine power output equivalent to that of a 1.5L engine(s) and CO2 emission of 95 grams per kilometer (New European Drive Cycle).

The engine will be mounted on the new "Micra (also known as March in other markets)" in the European market in the first half of 2011. The engine is based on the HR12DE, the 1.2L 3-cylinder engine mounted on the new Nissan MARCH. High engine performance

and low fuel consumption levels have been achieved through the adoption of the Miller cycle, gasoline direct injection system (DIG), and a highly efficient supercharger, in combination with an Idling Stop system.

Here are details of the technologies:
By adopting the Miller cycle, in which the power stroke is enhanced by the compression stroke as a result of delaying the closing timing of the intake valve, the thermal energy of the fuel is converted to kinetic energy much more efficiently than it is with regular 4-stroke cycle engines, and pumping loss caused by intake manifold negative pressure has been reduced.

Moreover, the highly compressed and high-temperature air-fuel mixture is cooled by the latent heat of the vaporization of fuel directly injected into the cylinder, and the temperature of the combustion chamber is lowered by adopting a piston-cooling channel and sodium-filled valves to control detonation. These technologies have enabled a compression ratio of 13*1 for improved combustion efficiency.

The supercharger*2 is equipped with an automatic on/off clutch, which means that both high fuel efficiency and high engine performance can be achieved by automatically switching off supercharging while driving at low speeds, such as on city roads.

Moreover, adoption of a hydrogen-free diamond-like carbon (DLC) coating for the piston rings and a variable displacement oil pump helps to reduce friction by up to 30%, compared with conventional 4-cylinder engines with similar performance levels.

These technologies are the culmination of the company's research and development efforts based on the Nissan Green Program 2010 (NGP 2010) - Nissan's mid-term environmental action plan that includes initiatives to reduce CO2 emissions and introduce truly effective technologies, products and services into the market.

   1. *1 Volume ratio of top dead center (TDC) and bottom dead center (BDC). With a higher ratio, higher efficiency (i.e. high performance) can be expected, although it becomes prone to detonation, such as engine knocking. In the case of gasoline-powered engines, the compression ratio is around 10, even for high-performance engines.
   2. *2 A system in which a pump engine powered by the output shaft forcibly sends compressed air to the cylinder to gain a similar effect to that of engine displacement.

Related Articles

Leave a Comment

Fields marked with * are required
Name *:
Email *:
Comment *:
Code *:
  CAPTCHA
  • Email
  • YouTube
  • RSS
  • Twitter
  • facebook
  • feedburner

Related Specs

  1. 1969 Nissan Fairlady Z 432

    Engine: S20 Inline-6, Power: 119.3 kw / 160 bhp @ 7000 rpm, Torque: 177 nm / 130.5 ft lbs @ 5600 rpm
  2. 1998 Nissan R390 GT1

    Engine: Twin Turbo V8, Power: 410.1 kw / 549.9 bhp @ 6800 rpm, Torque: 637.2 nm / 470.0 ft lbs @ 4400 rpm
  3. 1984 Nissan 300ZX

    Engine: V6, Power: 165.5 kw / 221.9 bhp @ 6400 rpm, Torque: 268.5 nm / 198.0 ft lbs @ 4800 rpm
  4. 1990 Nissan 300ZX Twin Turbo

    Engine: Turbocharged V6, Power: 223.7 kw / 300.0 bhp @ 6400 rpm, Torque: 383.7 nm / 283.0 ft lbs @ 3600 rpm
  5. 2002 Nissan 350Z

    Engine: Aluminum VQ35DE V6, Power: 214.0 kw / 287 bhp @ 6200 rpm, Torque: 371.49 nm / 274 ft lbs @ 4800 rpm

New Vehicles

Chevrolet SS to receive six speed manualChevrolet SS to receive six speed manual
Chevrolet will offer the current SS model with a manual transmission in the US. The American sedan was confirmed officially by GM an is scheduled to be ...

Concept Cars

Citroen DS 5LS R concept to debut in BeijingCitroen DS 5LS R concept to debut in Beijing
A new DS concept car will be presented at the Beijing Motor Show later this month. DS 5LS R is an all-new and unique version of the DS 5LS, which combines ...

Custom Cars

BMW M4 M Performance unveiled in ABu DhabiBMW M4 M Performance unveiled in ABu Dhabi
BMW Abu Dhabi Motors decided to create a special M4 using M Performance accesories. With clients looking to own a special car, as sporty as can be, BMW ...

Green Autos

2015 Toyota FCV production version unveiled2015 Toyota FCV production version unveiled
Toyota unveiled the first photos and details of its first mass production hydrogen fuell cell vehicle: the FCV. ...

Future Cars

Skoda seven seat SUV to lead the Czech offensiveSkoda seven seat SUV to lead the Czech offensive
Skoda is ready to begin a strong offensive in Europe and China. These two markets can help the Czech manufacturer to reach is sales target of 1.5 million ...

Market News

2015 Mitsubishi Pajero facelift introduced in Japan2015 Mitsubishi Pajero facelift introduced in Japan
Mitsubishi will try to attract more Japanese customers with the 2015 version of the Pajero. ...

Gadgets

Land Rover transparent hood to feature on Discovery Vision ConceptLand Rover transparent hood to feature on Discovery Vision Concept
Land Rover will offer its drivers a digital vision of the terrain ahead by using magic. In other words, they will make the front of the car invisible. ...

Various News

Ferrari 275 GTB/C Speciale to become the most expensive Ferrari in the worldFerrari 275 GTB/C Speciale to become the most expensive Ferrari in the world
RM Auctions will organise a special event in monterrey on August 15th. The star of this event will be a very rare Ferrari 275 GTB/C Speciale. The car ...

Videos

VIDEO: Legendary BMW M3 E30 DTM vs BMW M3 F80VIDEO: Legendary BMW M3 E30 DTM vs BMW M3 F80
BMW made a fabulous car in the 80`s: the M3 DTM model. It was a very fast car and a real brute, praised even today by the purists. Now, the legendary ...

Motorsports

Peugeot 2008 DKR officially unveiledPeugeot 2008 DKR officially unveiled
Peugeot will be returning to Dakar Rally at the beginning of 2015. To be sure they do it in a proper way, th French unveiled their 2008 DKR model, a real ...