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 Naslov: Novi D5
PostPostano: čet sij 08, 2009 12:57 pm 
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član VKH
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Pridružen/a: čet ožu 20, 2008 8:44 am
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http://www.autonet.hr/default.aspx?id=5562

To bi trebalo dobro ići ,sudeći po okretnom momentu, ali jedno 225 ks da ima
bilo bi bolje. :)

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 Naslov: Novi D5
PostPostano: čet sij 08, 2009 2:10 pm 
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Pridružen/a: sri ruj 24, 2008 12:27 pm
Postovi: 111
http://www.tportal.hr/autozona/vijesti/ ... dizel.html


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 Naslov: Re: Novi D5
PostPostano: čet sij 08, 2009 3:43 pm 
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Pridružen/a: uto srp 24, 2007 3:23 pm
Postovi: 519
Vozi: S60 2.4 2000.
Lokacija: ZAGREB
:shock: , :clap:

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 Naslov: Re: Novi D5
PostPostano: pet sij 09, 2009 11:22 pm 
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Pridružen/a: čet vel 21, 2008 2:21 am
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6,2 l/100km. O daaaa.


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 Naslov: Re: Novi D5
PostPostano: sub sij 10, 2009 11:30 am 
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Pridružen/a: uto sij 30, 2007 5:06 pm
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Slazem se sa izjavom o snazi. Da li je stvarno bilo nuzno sve ovo radit za dodatnih 10%? Mozda je motor u praksi osjetno snazniji i ugodniji za vozit, ali psihologija cini svoje...

_________________
Volvo S40 1.8, wine red, 1996.; 2000. - 2006.
Volvo 850 T5R, yellow, 1995.; 2006. - 2008.
Volvo 850R estate, red, MANUAL!!, 1996.; 2008. - 2012.
Volvo S80 T6, 2002.; 2009. - 2012.
Volvo V70 2.4 20v 2001.; 2012. - 2013.
Volvo S80 2.5d, 1999.; 2012. - ...


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 Naslov: Re: Novi D5
PostPostano: sub sij 10, 2009 12:25 pm 
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član VKH
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Pridružen/a: ned tra 01, 2007 7:52 pm
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Vozi: volvo a kaj bi drugo
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10% na 185KS je ustvari puno,jer malo bi bilo 10% na recimo 75KS :wink: Tak da ovo povečanje ima smisla :dance:

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850 TDI-ČAĐO (Više ga nimam)

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Raskapam tuđe 850-ke ko da su moje!
Koji puta uspijem nešto i popraviti!


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 Naslov: Re: Novi D5
PostPostano: sub sij 10, 2009 12:56 pm 
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Pridružen/a: sri sij 31, 2007 7:35 pm
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Vozi: Audi A4 8W
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225 dizelskih konja je sasvim pristojno za jednu obiteljsku limuzinu :whistle:

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 Naslov: Re: Novi D5
PostPostano: sub sij 10, 2009 1:41 pm 
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Pridružen/a: sri sij 31, 2007 12:06 pm
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Vozi: Nissan 350z
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Slazem se sa izjavom o snazi. Da li je stvarno bilo nuzno sve ovo radit za dodatnih 10%? Mozda je motor u praksi osjetno snazniji i ugodniji za vozit, ali psihologija cini svoje...
Ne radi se tu o samo dodatnih 10% više maksimalne vrijednosti snage. Takav motor razvija puno više momenta i snage po cijelom području, tj. površina ispod krivulje snage je puno veća nego na starom motoru. Ako ga ikada budeš u prilici probati, garantiram ti da ćeš imati osjećaj kao da je motor dvostruko jači, a ne samo tih 10%.

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 Naslov: Re: Novi D5
PostPostano: sub sij 10, 2009 3:32 pm 
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Pridružen/a: pet ožu 28, 2008 4:29 pm
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al kak je dio kolega s foruma zakljucil skupa s menom... volvo nebude pridobil siroke mase kupaca bmw, mercedesa i sl. makar im je cijenom slican, dok ne izbaci dizela od over 250ks...

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V70, d5 autom., 163ks, '02.g. (2007.-2015.)
S80, d5 autom., 185ks, '08.g. (2015.-

pitanja u vezi arhitektonskog projektiranja, legalizacija i sl...
http://gradecki-projekt.hr/" onclick="window.open(this.href);return false;


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 Naslov: Re: Novi D5
PostPostano: sub sij 10, 2009 4:43 pm 
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Pridružen/a: sri sij 31, 2007 12:06 pm
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Vozi: Nissan 350z
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Ma ne bude dobio takvu klijentelu i da izbaci diesel motor i sa 300KS. Nema to veze sa snagom motora, tko hoće BMW, kupit će ga bez obzira na sve.

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 Naslov: Re: Novi D5
PostPostano: sub sij 10, 2009 6:40 pm 
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Pridružen/a: uto sij 30, 2007 5:06 pm
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Ne radi se tu o samo dodatnih 10% više maksimalne vrijednosti snage. Takav motor razvija puno više momenta i snage po cijelom području, tj. površina ispod krivulje snage je puno veća nego na starom motoru. Ako ga ikada budeš u prilici probati, garantiram ti da ćeš imati osjećaj kao da je motor dvostruko jači, a ne samo tih 10%.
Upravo to. Nisam bio najjasniji sa onim sto sam htio rec, "psihologija" se odnosila na prosjecne kupce. Naime, uopce ne sumnjam da je taj motor u praksi osjetno drugaciji od slabijeg "brata" sa 185KS, ali mi se cini da ces tesko objasnit potencijalnom kupcu da zbog 10%ak posto vise snage izdvoji tko zna koliko vise novaca.

_________________
Volvo S40 1.8, wine red, 1996.; 2000. - 2006.
Volvo 850 T5R, yellow, 1995.; 2006. - 2008.
Volvo 850R estate, red, MANUAL!!, 1996.; 2008. - 2012.
Volvo S80 T6, 2002.; 2009. - 2012.
Volvo V70 2.4 20v 2001.; 2012. - 2013.
Volvo S80 2.5d, 1999.; 2012. - ...


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 Naslov: Re: Novi D5
PostPostano: sub sij 10, 2009 6:43 pm 
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Pridružen/a: uto sij 30, 2007 5:06 pm
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Ma ne bude dobio takvu klijentelu i da izbaci diesel motor i sa 300KS. Nema to veze sa snagom motora, tko hoće BMW, kupit će ga bez obzira na sve.
Ovo je vjerojatno palilo pred 15ak godina, no danas mislim da i kupci premium segmenta sve vise gledaju sta se jos nudi. Ne da stede novce, al danas jednostavno nije tako cool imat Mercedes E270cdi, nego se gledaju i alternative...

_________________
Volvo S40 1.8, wine red, 1996.; 2000. - 2006.
Volvo 850 T5R, yellow, 1995.; 2006. - 2008.
Volvo 850R estate, red, MANUAL!!, 1996.; 2008. - 2012.
Volvo S80 T6, 2002.; 2009. - 2012.
Volvo V70 2.4 20v 2001.; 2012. - 2013.
Volvo S80 2.5d, 1999.; 2012. - ...


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 Naslov: Re: Novi D5
PostPostano: pon sij 12, 2009 9:48 pm 
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Pridružen/a: čet lis 11, 2007 11:03 am
Postovi: 208
Lokacija: Slovenija
Evo malo više o tome:
Spearhead technology gives Volvo's new Euro 5 diesel top performance and record-low fuel consumption

Volvo Cars is now introducing an entirely new 2.4-litre 5-cylinder diesel engine in the Volvo S80. It is in principle just the D5 badge and the five-cylinder configuration that it shares with the previous generation. The new engine is certified according to Euro 5 and is significantly more efficient that its predecessor.

With high-tech solutions such as sequential twin turbochargers, ceramic glow-plugs and piezoelectric fuel injectors, Volvo's engineers have succeeded in cutting fuel consumption to record-low levels for a car of this size - 6.2 litres/100 km. CO2 emissions are 164 g/km.

This low fuel consumption in combination with power output of 205 hp and no less than 420 Nm of torque means the Volvo S80 with D5 engine is bidding for the title of best in class.

"Our brief was to develop a modern performance diesel that meets the Euro 5 norm," says Derek Crabb, Vice President, Powertrain Engineering. "The previous engine generation has undergone constant development in a series of stages and had reached the end of its potential. We therefore decided to start with a clean sheet of paper and harness the advanced technology to which we have access today. The result is even better than we dared hope. What is more, this engine has been developed entirely in-house at Volvo."

Performance and driving comfort of top class
Volvo's new D5 engine has a displacement of 2.4 litres, offering power and response at the touch of the accelerator. It offers the best imaginable driveability and smoothness, whatever the situation, not least in urban driving. With an automatic gearbox this is particularly evident. The wide torque of the engine in combination with extremely rapid automatic gear shifting provides an extraordinary smooth ride with dramatically improved real life fuel consumption.

The performance and driveability requirements have been solved with twin turbochargers of different sizes that operate in sequence to provide added power within a broader rev range. The result is alert response and rapid acceleration at all speeds, with very smooth power delivery between the two turbo ranges. This power means there are always ample resources for quick overtaking, particularly between 80 and 120 km/h. The smooth transition provides a very sophisticated driving experience.

Advanced injection technology using piezoelectric fuel injectors provides precise distribution of the atomised fuel in the combustion chamber, resulting in efficient combustion and low emissions. At the same time, this technology and the efficient combustion create a pleasant sound bearing a closer resemblance to the elegant note of a six-cylinder petrol engine. The engine offers excellent results in terms of noise comfort and noise perception, technically known as NVH or Noise, Vibration and Harshness.


Fuel consumption lower than target
"When the project got under way, our goal was to bring fuel consumption down to 6.4 litres/100 km in the Volvo S80, which after all is a relatively large car," recalls Derek Crabb. "As the work progressed we saw that we could beat that target and today we are actually down to 6.2. With an automatic gearbox we have been able to reduce the consumption with more than 8 percent, from 7.3 to 6.7, which is a significant improvement."

This low fuel consumption is a result of the engine's advanced technology including the two sequentially harnessed turbochargers that help reduce fuel consumption throughout a very wide rev and torque range.

This twin-turbo technology has also made it possible to introduce higher levels of exhaust gas recirculation (EGR) across a wider rev range than before. This harnesses the two turbochargers' different properties optimally to deliver high performance and low fuel consumption.

The injection system with its piezoelectric fuel injectors and high-efficiency fuel pump also helps cut fuel consumption through extremely rapid and precise injection sequences and high injection pressure, resulting in particularly effective combustion.

Low emissions and easy breathing
"The technical solutions that contribute to this low fuel consumption also help reduce the engine's environmental footprint," explains Derek Crabb. "Reducing emissions and particulates was one of the basic requirements when the new engine was being developed."

In addition to twin turbochargers, piezoelectric fuel injectors and improved EGR control, the new D5 engine has been equipped with ceramic glow-plugs, a high-tech solution that delivers excellent starting properties owing to very quick warming up. They reach a temperature of 1000 degrees Celsius in just two seconds, making the engine easy to start and cutting emissions. In certain driving conditions, such as at really low revs, the ceramic glow-plugs can also be used to increase the temperature in the cylinders, further improving combustion efficiency.

The advanced injection technology makes it possible to supply additional fuel in tiny increments after the main injection charge, a process known as post-injection, with the aim of removing any soot particulates in the exhaust gases.

In order to ensure low particulate emissions, the engine has to be able to breathe easily and efficiently. And here Volvo's engineers have succeeded particularly well thanks to optimised control of air delivery to the cylinders.

"Thanks to the perfect breathing and the low particulate emissions, we have substantially reduced exhaust emissions and can proudly equip the new Volvo S80 D5 with twin tailpipes," says Derek Crabb.


Three years from project start to delivery
The new five-cylinder diesel is the first engine from Volvo's new project office for diesel engine development.

"The entire process from receiving the brief to installing the first engine in a car has taken less than three years, which is very good indeed," says Derek Crabb. "And we'll be accompanying this engine throughout its lifetime, making it easier for us to continually develop and optimise it for other Volvo models."

The aim was to develop a diesel engine with performance and driving comfort that satisfied the high demands of customers in the S80 segment. It also had to be tailored to meet forthcoming strict environmental requirements.

The engine was developed on a modular basis in terms of both design and building method, using standardised mountings for the turbochargers and other components. This makes it easier to install in other Volvo models and creates more scope for further development to meet future demands.

"The modular approach also makes the engine easier to build in the factory," reveals Derek Crabb. "In order to create the right preconditions for assembly, with good ergonomics for the fitters and high production quality, we have implemented an ongoing exchange of experiences and ideas with the very experienced staff in our engine factory."

The technology in brief

The D5 engine is made entirely out of aluminium. This gives low weight and good heat dissipation properties.

Transverse cooling gives uniform cooling of the cylinder head and engine block. This promotes a controlled temperature throughout the engine and contributes to high reliability and long lifetime.

The two turbochargers are of different sizes and together deliver extremely high boost pressure, 1.8 bar, across a particularly broad rev range. The smaller turbocharger is used primarily at lower revs. It reacts more alertly than the larger one and provides immediate response to quick throttle movements. At higher revs, the larger turbocharger takes over to provide more propulsion when accelerating at higher speeds. In addition to increased performance and reduced fuel consumption, the twin-turbo approach makes it possible to exploit the EGR system more efficiently than before.

By increasing the volume of the EGR cooler and equipping it with effective cooling fins, it has been possible to increase heat dissipation efficiency by no less than 25 percent. This in turn gives the returning exhaust gases far lower temperature, thus reducing emissions of nitrogen oxides (NOX) to a level that easily matches the Euro 5 requirements. NOX contributes to the formation of ground-level ozone and is one reason for over-fertilisation and acidification of soil and water. NOX also affects the respiratory system.

The piezoelectric fuel injectors are used in combination with a highly efficient high pressure fuel pump to achieve very high injection pressure, a massive 1800 bar.

These injectors has a response time that is twice as fast as that of a conventional injector. The effect of increased fuel pressure and fast injection response time is positive for emission reductions, engine power, engine noise and fuel consumption.

As a result, the amount of fuel injected can be tailored immensely precisely to suit any operating condition, which in turn promotes effective combustion, lower fuel consumption and reduced emissions of harmful substances.

Owing to its speed, a piezoelectric injector nozzle can deliver up to seven separate injection events during each operating cycle. Thanks to this speed and the high fuel delivery pressure, the injector nozzle can provide short pre-delivery injections even when engine revs exceed 3000 rpm, explaining why the engine runs so quietly.

The piezoelectric injector nozzle can also produce extremely short post-delivery injections of fuel after the main injection sequence. As a result, the particulate filter can be regenerated even when the engine is running at low revs.

The D5 engine features common rail injection via a fuel rail that is specially designed to withstand the high pressures. Injection pressure can be as high as 1800 bar.

The high pressure fuel pump efficiency has been improved since previous D5 engine generations. The improved efficiency and a significant weight reduction has a positive impact on fuel consumption.

Ceramic glow-plugs are high-tech components that provide excellent starting properties. They are heated up extremely quickly and reach 1000 degrees Celsius just two seconds after a cold start. Maximum operating temperature is 1300 degrees, which is about 30 percent higher than that of a conventional glow-plug. With ceramic glow-plugs, the engine can be started immediately without pre-heating, even at temperatures as low as minus 30 degrees Celsius.

Instead of using an oil dipstick the driver is alerted via the information display when it is time to top up with oil. The system even specifies how much oil is needed.

Finally, the engine mountings have been further developed and tailored to suit the high torque levels. They are supplemented with a third torque rod to stabilise the engine during firm acceleration.


Engine specification, new D5, Euro 5 (Volvo S80)

No. of cylinders 5
Displacement, cc/cu inches 2400/146.5
Bore, mm/inches 81.0/3.19
Stroke, mm/inches 93.15/3.667
No. of valves 20
Camshafts Twin overhead
Compression ratio 16.5:1
Idling revs 700
Max revs 5000
Max output (kW/rps) 151/67
Max output (hp/rpm) 205/4000
Max output (Eng hp/rpm) 202/4000
Max torque (Nm/rps) 420/29-50
Max torque (kpm/rpm) 42.8/1500-3250
Max torque (ft.lbf/rpm) 310/1500-3250
Engine management system Electronically controlled common rail direct injection
Injection pressure, bar 1800
Turbo pressure, kPa 180
Particulate filter Self-regenerating


"In conclusion, Volvo's new high-tech 5-cylinder diesel engine marks yet another step in our determination to reduce the combustion engine's environmental impact, at the same time as we give S80 customers a truly quiet and sophisticated engine with excellent performance," concludes Derek Crabb.

slika
slika
slika
slika
slika

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 Naslov: Re: Novi D5
PostPostano: pon sij 12, 2009 11:17 pm 
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član VKH
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Pridružen/a: pet vel 23, 2007 1:06 pm
Postovi: 2296
Vozi: xxxxx
Lokacija: VŽ/ZG
Motor jako dobar moment i to u velikom rasponu a za to se brinu dvije turbine jedna LP i jedna HP i sigurno je puno veći gušt za voziti od D50 185Ks, za potrošnju je info točna jer se ja jako puno toga promijenilo na motoru da bi se smanjila potrošnja.

Više info. kad za to dođe vrijeme 8)


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 Naslov: Re: Novi D5
PostPostano: uto sij 13, 2009 9:06 am 
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Pridružen/a: uto sij 30, 2007 8:20 pm
Postovi: 1688
Vozi: S60 2.5T summum 2005
Lokacija: Zapresic, okolica
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Konačno, iako šteta da nisu uzeli u obzir i psihološku moment i povećali ga na 2.5 litara. Jer to htjeli ne htjeli bolje zvuči od 2.4. Najbolje doduše zvuči 3.0, ali to je OT.
Uz isti blok su mu mogli produziti hod za koji mm ili povecati promjer (imaju iskustva sa time na benzincima 2.4/2.5). Dobili bi na snazi taman da ga lijepo zaokruže na 220 ks. :) Kad već kažu da je sve osim bloka novo, onda je i to uz sve bio neveliki posao. O stvarnim razlozima i ograničenjima možemo samo nagađati.

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