To keep your motor or car at its best performance, you must know something about it so that you may take the appropriate actions or measures when things go wrong. These engines can be suitable for your car, truck, or even passenger automobiles. Common rail direct injection or CRDI is now a widely accepted design for diesel engines. It has a common rail design with the tubes connected to all injectors.
This method allows the fuel to combine with air more efficiently. CRDI serves as the control center of your car, truck, or any motorized vehicle. It is the head which controls several factors. This includes the amount of fuel to be released, the timing of injection, the timing of the charge, and its pressure within the common rails.
According to some relevant studies, CRDI has increased the performance of diesel engines by 25 percent. With this, it also reduces the operation cost. Though CRDI is just a bit more expensive than other diesel engine technologies, you can save a lot in the fuel costs since less fuel is wasted. Turbocharged Direct Injection, or TDI, is a turbo diesel engine design that has the features of turbocharging and cylinder direct fuel injection. It was developed by the popular Volkswagen Group in Europe.
TDI has very selected compatible automobiles, especially for those vehicles produced by Volkswagen. How does TDI work? TDI uses direct injection. As a result, your engine has more power and greater efficiency. TDI has a low surface area which reduces heat loss, thus increasing engine efficiency with minimal combustion noise. CRDI is a bit more expensive than other diesel engine technologies, but you can save a lot in the fuel costs since less fuel is wasted.
Cite Celine.motor engine hyundai santa fe 2.0 crdi 16v diesel
August 4, Name required.The 2. For reduced vibration and lower booming noise, the R gets a lower balancer shaft which is encased in a stiffened ladder frame housing for increased rigidity. Weight saving features include a serpentine belt with isolation pulley, a plastic head cover, plastic intake manifold and plastic oil filter housing.
To achieve Euro 5 emission compliancy, the R is fitted with a close-coupled Diesel particulate filter plus highly efficient exhaust gas recirculation with by-pass valve. Bore and Stroke are As with the 2. This engine also currently fitted into the new 8 passenger crossover Hyundai Palisade for the Korean domestic market. From Wikipedia, the free encyclopedia.
This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources. Hyundai Motor Korea. Hyundai Motor. Retrieved Categories : Hyundai engines Diesel engines by model Automotive part stubs Inline-four engines. Hidden categories: Articles needing additional references from December All articles needing additional references All stub articles. Namespaces Article Talk.
Variable geometry. Common rail direct injection. Bosch with air system-based charge control.
This article about an automotive part or component is a stub. You can help Wikipedia by expanding it.The Hyundai 2. The 2. The D4HB engine has a compacted graphite iron cylinder block.Nourrir les hommes 1ere s
The compacted graphite iron material is lighter than cast iron and provides greater strength, which is important for heavy-loaded diesel engines.
For vibration reduction, there is a lower balancer shaft fitted inside stiffened ladder frame housing mounted at the bottom side of the 2. On top of the block, there is a light-weight valve DOHC cylinder head. The intake and exhaust camshafts are chain driven. The valvetrain is equipped with hydraulic cam followers no needs for valve clearance adjustment.
For the fuel delivery, the engine uses Bosch 3rd-generation common rail direct injection CRDi system coming with piezo-electronic injectors. The electronically controlled fuel system operates under very high pressure up to bar.
Hyundai U engine
To squeeze out the maximum power and minimize turbo lag effect, the 2. Engineers took care of weight loss and used plastic material for some components manufacturing. There are a plastic cylinder head cover, plastic oil filter housing and plastic intake manifold. More stringent emission rules Euro 5 and following required a close-coupled diesel particulate filter DPF installation in addition to an exhaust gas recirculation EGR.
To summarize, the engine has modern technical solutions and electronic systems that provide good performance in combination with low fuel consumption and emissions. The engine has fairly good reliability and in general, has no serious flaws in the design. But some problems may still happen. Let's start with unpleasant features. The D4HB engine is noisy. All operation noise is produced mostly by valvetrain and timing chain. Sometimes, bad oil clogs the channel of the hydraulic tensioner circuit and the noise is greatly enhanced.
The piezo-electronic injectors may cause unstable operation of the engine. Replacing these injectors is quite expensive and requires specialized service.Kia Motors unveiled the new Kia Sportage facelift, Europe's most popular and global model.
The new model comes with a modern design both inside and outside. The news for are safety technologies and revised engines in line with future emission standards.
KIA Sportage 1. KIA Sportage 2. The fourth generation Kia Sportage made its first appearance at the Frankfurt International Motor Show, surprising the people with its attractive design and new technological features. Kia says the exterior design was inspired by modern jet fighters, combining smooth and sharp shapes into one robust and attractive package.
The new design also helps reduce the drag coefficient from 0. The Kia Sportage arrived with an array of design enhancements that included sweeping angles, pronounced wheel flares and a more aggressive stance, HID headlamps and LED taillights.
Ride and dynamic-wise, the facelifted Sportage gained standard high-performance dampers and tilt and telescopic steering column. Updates were operated under the hood as well, where Kia fitted a revised 2. The new car, which KIA refers as a CUV compact utility vehicle has more fluid lines, and comes with a more refined interior. The new Sportage features a redesigned dashboard and center console and can be purchased with intriguing premium-cl Kia introduced a facelift for their second generation Sportage in May The new car featured an improved 2.
Therefore, the facelifted Sportage was now introduced with a redesigned spoiler, new headlights, restyled front grille and revised tail lights. The new model was first shown at the London Auto Show and available fo The crossover SUV first appeared ina joint venture with Lotus engineering. In the second generation came out with a platform that was shared with the Hyundai Tucson.
The engine receives an upgrade, moving up to a V6 that puts out hp ther is also a 2. It also has a larger body than its predecessor and customers complained that someThe Hyundai U engine is a series of three or four-cylinder diesel engines made for automotive applications by the Hyundai Kia Automotive Group.
The U series of engines includes the smallest automotive diesel engines produced by Hyundai. The 1. It is one of Hyundai's most efficient engines - using 4. It is a reduced stroke version of the 1. Introduced in this engine replaced the 1. It is a "best in class" diesel engine in the world. Init was refined to the 1. From Wikipedia, the free encyclopedia.
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Auto Report. Retrieved Hyundai New Zealand. Retrieved 13 October Categories : Hyundai engines Diesel engines by model Inline-three engines Inline-four engines. Hidden categories: All articles with dead external links Articles with dead external links from April Articles with permanently dead external links Articles needing additional references from July All articles needing additional references.
Fixed or variable geometry. Common rail direct injection. Delphi or Bosch.Its predecessor is the G4GF produced since But the two-liter G4GC engine is entirely new. The G4GC engine has many redesigned and entirely new parts. The engine has the cast iron cylinder block, the new crankshaft with eight counterweights, stronger connecting rods, and reshaped pistons. The engine has DOHC valve aluminum cylinder head.
The intake camshaft is equipped with variable valve timing system CVVT.
There are no hydraulic lifters in this engine. You need to adjust valve gaps every 60, mileskm. Don't worry if you will hear some knocking noises; maybe it is a big valve gap. Also, the engine valvetrain uses the timing belt keep an eye on its condition. The Beta series engine was replaced by new and more powerful engines from Theta series. The G4GC is not an exception, and the 2.
The G4GC is louder compared to previous Hyundai engines. The engine suffers from different vibrations and noises similar to diesel engines.Chemical reactions test pdf
That is the unique feature. The engine shakes at idle rpm or kicks while accelerating and braking. This problem is fixed by replacing ignition coils, plugs, and wires. Hanging revs. That is an electronic issue; ECU reload kills the symptoms. Longevity of the G4GC is quite impressive.Common rail direct fuel injection is a direct fuel injection system for diesel engines. High pressure injection delivers power and fuel consumption benefits over earlier lower pressure fuel injection, by injecting fuel as a larger number of smaller droplets, giving a much higher ratio of surface area to volume.
This provides improved vaporization from the surface of the fuel droplets, and so more efficient combining of atmospheric oxygen with vaporized fuel delivering more complete combustion. In petrol engines, it is used in gasoline direct injection engine technology. The common rail system prototype was developed in the late s by Robert Huber of Switzerlandand the technology was further developed by Dr. The first successful use in a production vehicle began in Japan by the mids. Shohei Itoh and Masahiko Miyaki of the Denso Corporationa Japanese automotive-parts manufacturer, developed the common rail fuel system for heavy-duty vehicles and turned it into practical use on their ECD-U2 common rail system mounted on the Hino Ranger truck and sold for general use in Modern common rail systems, although working on the same principle, are governed by an engine control unitwhich opens each injector electrically rather than mechanically.
This was extensively prototyped in the s with collaboration between Magneti MarelliCentro Ricerche Fiat, and Elasis. After research and development by the Fiat Groupthe design was acquired by the German company Robert Bosch GmbH for completion of development and refinement for mass production. In hindsight, the sale appeared to be a strategic error for Fiat, as the new technology proved to be highly profitable. The company had little choice but to sell Bosch a licence, as it was in a poor financial state at the time and lacked the resources to complete development on its own.
The first passenger car to use the common rail system was the model Alfa Romeo 2. Common rail engines have been used in marine and locomotive applications for some time. The Cooper-Bessemer GN-8 circa is an example of a hydraulically operated common rail diesel engine, also known as a modified common rail. Vickers pioneered the use of common rail injection in submarine engines.
Vickers engines with the common rail fuel system were first used in in the G-class submarines. Fuel delivery to individual cylinders could be shut off by valves in the injector lines.
Early engines had a pair of timing cams, one for ahead running and one for astern. Later engines had two injectors per cylinder, and the final series of constant-pressure turbocharged engines was fitted with four injectors per cylinder. The common rail system is suitable for all types of road cars with diesel engines, ranging from city cars such as the Fiat Panda to executive cars such as the Audi A8. The automotive manufacturers refer to their common rail engines by their own brand names:.
Solenoid or piezoelectric valves make possible fine electronic control over the fuel-injection time and quantity, and the higher pressure that the common rail technology makes available provides better fuel atomisation. To lower engine noisethe engine's electronic control unit can inject a small amount of diesel just before the main injection event "pilot" injectionthus reducing its explosiveness and vibration, as well as optimising injection timing and quantity for variations in fuel quality, cold starting, and so on.
Some advanced common rail fuel systems perform as many as five injections per stroke. Common rail engines require a very short to no heating-up time, depending on the ambient temperature, and produce lower engine noise and emissions than older systems. Diesel engines have historically used various forms of fuel injection.Amtek auto limited
While these older systems provide accurate fuel quantity and injection timing control, they are limited by several factors:. The term "common rail" refers to the fact that all of the fuel injectors are supplied by a common fuel rail which is nothing more than a pressure accumulator where the fuel is stored at high pressure. This accumulator supplies multiple fuel injectors with high-pressure fuel.
This simplifies the purpose of the high-pressure pump in that it only needs to maintain a target pressure either mechanically or electronically controlled. The fuel injectors are typically ECU-controlled. When the fuel injectors are electrically activated, a hydraulic valve consisting of a nozzle and plunger is mechanically or hydraulically opened and fuel is sprayed into the cylinders at the desired pressure.
Since the fuel pressure energy is stored remotely and the injectors are electrically actuated, the injection pressure at the start and end of injection is very near the pressure in the accumulator railthus producing a square injection rate.
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