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VQ25DET
The VQ is a family of V6 24V automobile engines developed by Nissan with displacements varying from 2.0 L to 4.0 L. It is an aluminum block DOHC 4-valve (per cylinder) design with aluminum heads. It is fitted with Nissan's EGI/ECCS sequential multi-point fuel injection (MPFI) system. Later versions feature various implementations of variable valve timing and replace MPFI with direct fuel injection (marketed as NEO-Di). The VQ series engine was honored by Ward's 10 Best Engines list almost every year from the list's inception. The VQ series replaced the VG series of engines. 1st gen (1994-) * VQ20DE * VQ25DE 1st * VQ30DE * VQ30DET 2nd gen (2000-) * VQ23DE (2003-) * VQ25DE 2nd gen (2004-) * VQ35DE (2000-) * VQ40DE 3rd gen * VQ25HR * VQ35HR (2006-) * VQ37VHR (2008-) DE series VQ20DE This DOHC 24-valve V6 has bore and stroke dimensions of respectively, along with a compression ratio ranging from 9.5 to 10.0:1. It produces to at 6400 rpm and at 4400&n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nissan
, trade name, trading as Nissan Motor Corporation and often shortened to Nissan, is a Japanese multinational corporation, multinational Automotive industry, automobile manufacturer headquartered in Nishi-ku, Yokohama, Japan. The company sells its vehicles under the Nissan, Infiniti, and Datsun brands, with in-house performance tuning products (including cars) labelled Nismo. The company traces back to the beginnings of the 20th century, with the Nissan ''zaibatsu'', now called Nissan Group. Since 1999, Nissan has been part of the Renault–Nissan–Mitsubishi Alliance (Mitsubishi joining in 2016), a partnership between Nissan and Mitsubishi Motors of Japan, with Renault of France. , Renault holds a 43.4% voting stake in Nissan, while Nissan holds a 15% non-voting stake in Renault. Since October 2016 Nissan has held a 34% controlling stake in Mitsubishi Motors. In 2013, Nissan was the sixth largest automaker in the world, after Toyota, General Motors, Volkswagen Group, Hyundai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nissan Motor Co
, trading as Nissan Motor Corporation and often shortened to Nissan, is a Japanese multinational automobile manufacturer headquartered in Nishi-ku, Yokohama, Japan. The company sells its vehicles under the Nissan, Infiniti, and Datsun brands, with in-house performance tuning products (including cars) labelled Nismo. The company traces back to the beginnings of the 20th century, with the Nissan ''zaibatsu'', now called Nissan Group. Since 1999, Nissan has been part of the Renault–Nissan–Mitsubishi Alliance (Mitsubishi joining in 2016), a partnership between Nissan and Mitsubishi Motors of Japan, with Renault of France. , Renault holds a 43.4% voting stake in Nissan, while Nissan holds a 15% non-voting stake in Renault. Since October 2016 Nissan has held a 34% controlling stake in Mitsubishi Motors. In 2013, Nissan was the sixth largest automaker in the world, after Toyota, General Motors, Volkswagen Group, Hyundai Motor Group, and Ford. In 2014, Nissan was the largest car ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renault Samsung SM7
The Renault Samsung SM7 is an executive car or full-size car (E-segment in Europe) that was produced by the South Korean manufacturer Renault Samsung Motors from 2004 to 2020. First generation (EX2) In October 2002, Renault Samsung Motors started to work on the "EX" project, a new car based on the Nissan J31 platform which shared underpinnings with the Nissan Teana (in Asian markets) and the sixth-generation Nissan Maxima (in Europe, North America and Australia). On 30 November 2004, the new car was revealed to the public as a high-end model. To distinguish it from the Teana various changes were made to the design with the aim of giving it a more solid image. The car had a significant safety equipment as standard. It was presented in five trim levels: SE, XE, LE, XE35 and RE35. Engines The SM7 is fitted with either a 2.3L or 3.5L Neo VQ V6 engine, developed by Nissan. The 2.3L version was fitted to the SE, XE, LE trim levels and the 3.5L to the XE35 and RE35. 2008 facelift ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nissan Teana
The is a mid-size sedan produced by Japanese automobile manufacturer Nissan. It was exported as the Nissan Maxima and Nissan Cefiro to certain markets. It replaces the Nissan Bluebird, Laurel and Cefiro. It shares a platform with the Nissan Maxima and Nissan Altima which are sold in North America, as well as the Japanese market Presage minivan. The Teana has been available in East Asia, Russia, Ukraine, South Asia, Southeast Asia, Australia, New Zealand, Latin America and the Caribbean. As of 2007 the Teana shares its platform with its French cousin, the Renault Laguna and Renault Latitude in most of Europe, the Middle East and Africa, and in Southeast Asia as the Renault Samsung SM5. With the introduction of the Teana, Nissan continued the J lineage for the model codes (J31 and J32) from the Nissan Maxima (J30). Starting with the introduction of the third generation in 2013, the Teana became a badge engineered version of the North American Altima. The Teana nameplate was r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renault Samsung SM5
The Renault Samsung SM5 is a mid-size car or large family car (D-segment in Europe) produced by the South Korean manufacturer Renault Samsung Motors, with technical assistance from Japanese automaker Nissan. Between 1998 and 2012, Renault Samsung Motors had produced 680,000 SM5 models. In 2018, 10,002 models were made at the Busan plant. The first generation was launched in 1998, with the second generation introduced in 2005 and the current third generation SM5 launched in 2009. In some markets, the SM5 is sold as the Renault Latitude or Renault Safrane. __TOC__ First generation (KPQ/A32; 1998–2005) The first generation model was based on the Nissan Maxima (A32). File:01 Samsung SM5 (first generation) back.jpg , Rear view File:05 Samsung SM5 (first generation).jpg , Facelift Second generation (EX1/DF(A34R); 2005–2010) The second generation model replaced the previous model in 2005. It is based on its sibling, the SM7. The model was seen in Australia being teste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nissan Cefiro
The is a front-engine, five passenger, mid-size passenger car manufactured and marketed by Nissan Motors over three generations. Almost all Cefiro's were marketed as four-door sedans, though a five-door wagon body style was briefly available (1997–2000). In most cases, the Cefiro used Nissan's VQ six-cylinder engines, named Ward's 10 Best Engines more than ten years running. Nissan marketed the Cefiro in the Japanese Domestic Market (JDM) as well as worldwide, the latter under numerous badge-engineered nameplates, including as the Nissan Maxima (North America, Australia), Samsung SM5 (Korea), Infiniti I30 and Infiniti I35 (North America) and Maxima QX (Europe, Russia). Models manufactured under license were marketed in Indonesia, Kuala Lumpur and Taiwan. The first generation Cefiro (internally designated the A31, 1988-1994), used rear-wheel drive; offered four- and six-cylinder engines; and became popular in motorsport drifting. The second generation (A32, 1995-1998) and thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stroke (engine)
In the context of an internal combustion engine, the term stroke has the following related meanings: * A phase of the engine's cycle (e.g. compression stroke, exhaust stroke), during which the piston travels from top to bottom or vice versa. * The type of power cycle used by a piston engine (e.g. two-stroke engine, four-stroke engine). * "Stroke length", the distance travelled by the piston during each cycle. The stroke length––along with bore diameter––determines the engine's displacement. Phases in the power cycle Commonly used engine phases or strokes (i.e. those used in a four-stroke engine) are described below. Other types of engines can have very different phases. Induction-intake stroke The induction stroke is the first phase in a four-stroke (e.g. Otto cycle or Diesel cycle) engine. It involves the downward movement of the piston, creating a partial vacuum that draws a air-fuel mixture (or air alone, in the case of a direct injection engine) into the combus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bore (engines)
In a piston engine, the bore (or cylinder bore) is the diameter of each cylinder. Engine displacement is calculated based on bore, stroke length and the number of cylinders: displacement = The stroke ratio, determined by dividing the bore by the stroke, traditionally indicated whether an engine was designed for power at high engine speeds (rpm) or torque at lower engine speeds. The term "bore" can also be applied to the bore of a locomotive cylinder or steam engine pistons. Steam locomotive The term bore also applies to the cylinder of a steam locomotive or steam engine. See also * Bore pitch * Compression ratio * Engine displacement Engine displacement is the measure of the cylinder volume swept by all of the pistons of a piston engine, excluding the combustion chambers. It is commonly used as an expression of an engine's size, and by extension as a loose indicator of the ... References {{Steam engine configurations Engine technology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ward's 10 Best Engines
10 of the World's best engines is an annual list of the ten ''"''best''"'' automobile engines available in the U.S. market, that are selected by ''Ward's AutoWorld'' magazine. The list was started in 1994 for Model Year 1995, and has been drawn every year since then, published at the end of the preceding year. Engines must be available in regular-production vehicles on sale in the U.S. market no later than the first quarter of the year. Eligibility has also been based on availability in a vehicle below a base price limit, which increased progressively from for the 1995 list up to for the 2020 list; this limit was eliminated for future competitions following the announcement of the 2020 winners. During a 2-month testing period, Wards editors evaluate each engine according to a number of objective and subjective criteria in everyday driving situations – there is no instrumented testing. The selection takes into account power and torque output, noise, vibration and harshness (NVH ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gasoline Direct Injection
Gasoline direct injection (GDI), also known as petrol direct injection (PDI), is a mixture formation system for internal combustion engines that run on gasoline (petrol), where fuel is injected into the combustion chamber. This is distinct from manifold fuel injection systems, which inject fuel into the intake manifold. The use of GDI can help increase engine efficiency and specific power output as well as reduce exhaust emissions. The first GDI engine to reach production was introduced in 1925 for a low-compression truck engine. Several German cars used a Bosch mechanical GDI system in the 1950s, however usage of the technology remained rare until an electronic GDI system was introduced in 1996 by Mitsubishi for mass-produced cars. GDI has seen rapid adoption by the automotive industry in recent years, increasing in the United States from 2.3% of production for model year 2008 vehicles to approximately 50% for model year 2016. Operating principle Charge modes The 'charg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable Valve Timing
In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with variable valve lift systems. There are many ways in which this can be achieved, ranging from mechanical devices to electro-hydraulic and camless systems. Increasingly strict emissions regulations are causing many automotive manufacturers to use VVT systems. Two-stroke engines use a power valve system to get similar results to VVT. Background theory The valves within an internal combustion engine are used to control the flow of the intake and exhaust gases into and out of the combustion chamber. The timing, duration and lift of these valve events has a significant impact on engine performance. Without variable valve timing or variable valve lift, the valve timing is the same for all engine speeds and conditions, therefore compromises are neces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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