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DOHC & SOHC Engine


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#21
PotenzaG3

Posted 04 April 2005 - 10:23 AM

PotenzaG3

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yes...

Alfa Romeo is Italian (European cars)
CVT ---> Continuously Variable Transmission (gearbox)
CVVT ----> Continuous Variable Valve Timing (engine)

CVT & CVVT is 2 different thing.

#22
iemech

Posted 04 April 2005 - 12:31 PM

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CVT ---> Continuously Variable TRANSMISSION (gearbox)
CVVT ----> Continuous Variable VAVLE Timing (engine)

TRANSMISSION (use for gearbox term)

VAVLE (use inside the engine)


#23
PotenzaG3

Posted 04 April 2005 - 01:39 PM

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Dude,

Where got valve use in gearbox?

CVT ---> Continuously Variable TRANSMISSION (gearbox) --> belt driven
gearbox. Continuously Variable Transmissions are transmissions that
provide an uninterrupted range of speed ratios, unlike a normal
transmission that provides only a few discrete ratios

http://www.gizmology.net/cvt.htm

CVVT ----> Continuous Variable VAVLE Timing (engine) ---> A system for
varying the valve timing of an internal combustion engine to increase the
retarding effect of the engine for braking purposes, to increase the
compression ratio of a relatively low compression ratio engine to enhance
starting, and to optimize breathing to improve the engine performance
over the useful operating speed range. The valve timing is varied by
changing the total valve train length so as to shift the points on the
cam profile at which the valve opening and closing events are determined.

http://www.delphion....pn10=US03786792

So CVT & CVVT is 2 different thing.






#24
ManB

Posted 04 April 2005 - 03:07 PM

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Yo,

Dun get worked up..I know where is the valve and where is the gearbox..it
is just that the terms by Japs is rather confusing sometimes, coupled
with Vtec, VVTi and the like...

But thanks for the differentiation of CVT and CVVT...from a lettering
point of view, it does look the same but the meaning it carries is
different...same as SOHC and DOHC...a layment wud say..what so bloody
different..but if you know what it means it doesn mean a lot...

#25
PotenzaG3

Posted 04 April 2005 - 05:00 PM

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Vtech, VVTI, CVVT.... all same, variable valve timing... some kind of
marketing strategy only...

#26
TypeR

Posted 05 April 2005 - 01:12 PM

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At the end of the day, the car still ferries us from point A to point B,
regardless of CVVT, CCTV, MiTV, VVT-i, VTEC, i-VTEC, i-DSI...

roti telur satu, please !


#27
yscheong

Posted 05 April 2005 - 05:25 PM

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disagree with TypeR

Nowaday we are talking about how to make it save fuel, less pollution,
faster, safer, more comfortable ect from point A to point B.

That's why we need new techonology. But all this our lovely P1 is not
qualify at all.

#28
PotenzaG3

Posted 05 April 2005 - 11:05 PM

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Big Smile

#29
TypeR

Posted 07 April 2005 - 10:52 AM

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OK. I stand corrected Big Smile

#30
premium

Posted 09 April 2005 - 11:15 PM

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Crying