Koenigseggeigeig's combustion engine without... a camshaft?

All the news that's fit to shift.
User avatar
Squint
Master Standardshifter
Posts: 3390
Joined: Thu Apr 21, 2011 12:44 pm
Location: KY

Koenigseggeigeig's combustion engine without... a camshaft?

Postby Squint » Wed Feb 26, 2014 6:08 pm

The Freevalve engine gets rid of the camshaft and the throttle body, replacing it with pneumatic actuators on top of each cylinder. This is something that has also been toyed with for a long time with electromagnetic valve openers, some ships use them now. That means the concept is proven, but now it's about reducing that scale to something smaller and more usable than a huge ship.

What that does is give completely independent control over each cylinder and each valve. If you have four valves, sometimes it only opens two. You can't do that with a regular camshaft, since the lobes are set to open all the valves. In order to get that sort of variability that Freevalve has, you'd have to totally switch cams. Freevalve can also shut down one cylinder, two cylinders, three cylinders, etc. It has that square cam profile that makes engineers all wet in the trousers.


See the rest of the article from Jalopnik here.

Read the article, it's worth it. Also, one of the pictures shows that their test Saab 9-5 Wagon is a manual.
'15 Mazda 3 iSport Hatch 6MT
'11 Ford Fiesta Hatchback SE 5MT
'14 Giant Escape City 24MT
'97 Honda Civic EX 4AT - Retired @ 184,001 mi

For Pony!

User avatar
tankinbeans
Master Standardshifter
Posts: 3695
Joined: Tue Apr 26, 2011 9:04 pm
Cars: 17 300S, 03 Century
Location: Shakopee, MN

Re: Koenigseggeigeig's combustion engine without... a camsha

Postby tankinbeans » Wed Feb 26, 2014 6:38 pm

I could swear Shadow posted something similar awhile ago. Sounds interesting though.
17 Mazda6
03 Century
InlinePaul wrote:The driving force of new fangled features to sell more cars [is to] cater to the masses' abject laziness!

User avatar
AHTOXA
Master Standardshifter
Posts: 14559
Joined: Sun Dec 23, 2007 6:31 pm
Cars: '16 Ecoboost F150
Location: Coppell, TX

Re: Koenigseggeigeig's combustion engine without... a camsha

Postby AHTOXA » Wed Feb 26, 2014 11:16 pm

I was thinking the same. Thought I remembered us having a discussion on that.
'16 Ecoboost F150
'12 Suzuki V-Strom 650
'17 Trek Fuel EX8 27.5+
'08 Giant Trance 1 (old school 26'er)

User avatar
InlinePaul
Master Standardshifter
Posts: 1429
Joined: Wed Mar 06, 2013 2:55 pm
Cars: 2001 Ranger 2.3L manual
Location: Detroit MI

Re: Koenigseggeigeig's combustion engine without... a camsha

Postby InlinePaul » Wed Feb 26, 2014 11:20 pm

Fascinating. Saw something about electronically actuated valves in one of those popular mechanic type magazines back in the 1990s. But nothing is as beautiful as full mechanical stuff like the model T and no battery in the T either, get spark from a magneto. Simple and reliable.
Stick shiftin since '77
theholycow wrote:Why in the world would you even want to be as smooth as an automatic? Might as well just drive an automatic...

User avatar
Bawked
Master Standardshifter
Posts: 2414
Joined: Wed Aug 29, 2007 12:24 am
Cars: 1991 mr2 sw20 n/a 5 speed
Location: New Zealand

Re: Koenigseggeigeig's combustion engine without... a camsha

Postby Bawked » Thu Feb 27, 2014 5:22 am

Watch the video guys!

<3 fwd


Return to “Manuals in the News”

Who is online

Users browsing this forum: Yahoo [Bot] and 2 guests