Intake Valaves
#1
Intake Valaves
Hi Guys,
Just in the process of securing a new HCH II.
Thanks for the explanation , very cool and it's one time I don't mind being proven totally wrong.
Just in the process of securing a new HCH II.
Thanks for the explanation , very cool and it's one time I don't mind being proven totally wrong.
Last edited by fuelmiser; 06-10-2008 at 06:48 PM.
#2
Re: Intake Valaves
No. When the engine is in glide mode, both the intake and exhaust valves stay closed. The camshaft is independent of the crankshaft, so there's no reason why it has to keep moving. See http://www.hondanews.com/categories/957/releases/2781
(I used to have a really nifty movie, will see if I can find the link)
Edit: Found it http://world.honda.com/HDTV/news/2005-4050705b/
(I used to have a really nifty movie, will see if I can find the link)
Edit: Found it http://world.honda.com/HDTV/news/2005-4050705b/
Last edited by mmrmnhrm; 06-09-2008 at 05:05 PM. Reason: Found that vid
#3
Re: Intake Valaves
#4
Re: Intake Valaves
The Civic Hybrid uses a 3-Stage i-VTEC valve control system that provides normal valve timing, high output valve timing and cylinder idling functions to the benefit of low fuel consumption, high output and greater electrical regeneration capabilities. The previous generation system in the 2005 Civic Hybrid uses 2-stage VTEC that provides normal valve timing and 3-cylinder idling. The 3-stage system adds high output valve timing and 4-cylinder idling. The high output valve timing contributes to the engines increase in output of 9 percent, while the added cylinder deactivation reduces pumping losses by 66 percent to help improve electrical regeneration capability by 1.7 times.
#5
Re: Intake Valaves
This is not quite correct. The camshaft is directly driven by the crankshaft by the timing chain, so it is rotating at all times. The action of the camshaft on the valves is what is controlled by the i-VTEC (by the rocker arms).
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