need info on camless engines (electrohydraulic valves)

fiveohpatrol · 01-09-2003, 10:39 AM

Well as the subject states, I need some info. I've got a few SAE technical articles, but I would like to find a couple good websites that kind of "dumb down" the topic so I can make it sound easier to comprehend to someone without an engineering background.

I'm an undergrad mechanical engineer, and I have to write a paper and do a presentation over this topic, and I have to format it in a way in which to explain the concept to the average "Joe Schmoe"

I seem to remember a post about this a year or two ago, but couldn't find it in the archives. PKRWUD I believe you were a part of the thread (but its hard to find one that you aren't

) Got any info for me? Or a good place to look?

thanks,

-drew

PKRWUD · 01-09-2003, 11:05 AM

"The November 1996 issue of MACHINE DESIGN magazine has a article about a Ford run at a camless engine. The valve actuation is by means of hydraulic pulses piloted by small electric solenoids. The scheme is complete with hydraulic energy recovery at the end of the valve strokes to keep the power requirements down and to damp the action of the valves.

Ford's system seems to identify the concerns that will have to be addressed in any successful camless system. The design is elegantly straightforward, but not one I would have come up with in a life time.

I could not find my copy of the magazine or find a path to it on the MACHINE DESIGN website. The magazine should be archived in any engineering library, but I do not have access to one. Perhaps some one with access could sneak a scan of the article to those who are interested. Ford allowed it to be published once. They may have it on line."

The following two links are both good, but the first one is the best.

http://www.autospeed.com/A_0910/page1.html

http://www.ipd.anl.gov/carat/1998projects/uiuc.htm

Take care,
~Chris

302 LX Eric · 01-09-2003, 11:09 AM

I just did a quick search on www.google.com using 'camless engines' and then one on 'electrohydraulic valves' and found a plethera of information out there. Seems to be lots of research articles from universities and such (lot of .edu sites).

Just a start.

E

stangsrule · 01-09-2003, 02:09 PM

I know it is not the quite the same thing but I know a while back a friend sent me a link to a site with a company that had come up with some rotary ceramic valves that looked pretty interesting and they had them mounted on a 5.0... I can't find it now but I think it was named something Coates or Coates something.... If it is still around and anybody has a link I would like to have it again!

silver_pilate · 01-09-2003, 07:41 PM

I tuned into the Coate's design a while back. The site is www.coatesengine.com. Kickin' stuff.

--nathan

RPM427 · 01-09-2003, 11:48 PM

Hey fiveohpatrol, does your school have a Formula SAE racecar team?

fiveohpatrol · 01-10-2003, 12:42 AM

we used to up until a couple years ago. It was really unorganized from what I hear, and they were irresponsible with the money, so they got shut down. Now it is revived as TRM, and we are trying to get the funding to do another formula SAE car. Check out the link in my sig. We've got a 84GT 342cid project thats just gettin started. Its fun building a stang with other people's money

especially when I'm gonna be rippin it down the track in it!

stangsrule · 01-10-2003, 12:41 PM

Hey Thanks silver_pilate! The web site has changed a lot since I saw it last but that is the system I thought was so cool... I wish I could afford it on my car!

01-09-2003, 10:39 AM	#1
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	need info on camless engines (electrohydraulic valves) Well as the subject states, I need some info. I've got a few SAE technical articles, but I would like to find a couple good websites that kind of "dumb down" the topic so I can make it sound easier to comprehend to someone without an engineering background. I'm an undergrad mechanical engineer, and I have to write a paper and do a presentation over this topic, and I have to format it in a way in which to explain the concept to the average "Joe Schmoe" I seem to remember a post about this a year or two ago, but couldn't find it in the archives. PKRWUD I believe you were a part of the thread (but its hard to find one that you aren't ) Got any info for me? Or a good place to look? thanks, -drew __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

01-09-2003, 11:05 AM	#2
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	"The November 1996 issue of MACHINE DESIGN magazine has a article about a Ford run at a camless engine. The valve actuation is by means of hydraulic pulses piloted by small electric solenoids. The scheme is complete with hydraulic energy recovery at the end of the valve strokes to keep the power requirements down and to damp the action of the valves. Ford's system seems to identify the concerns that will have to be addressed in any successful camless system. The design is elegantly straightforward, but not one I would have come up with in a life time. I could not find my copy of the magazine or find a path to it on the MACHINE DESIGN website. The magazine should be archived in any engineering library, but I do not have access to one. Perhaps some one with access could sneak a scan of the article to those who are interested. Ford allowed it to be published once. They may have it on line." The following two links are both good, but the first one is the best. http://www.autospeed.com/A_0910/page1.html http://www.ipd.anl.gov/carat/1998projects/uiuc.htm Take care, ~Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE! Last edited by PKRWUD; 01-09-2003 at 11:22 AM..

01-09-2003, 11:09 AM	#3
302 LX Eric or '331 LX Eric' Join Date: Jan 1999 Location: Columbus, Ohio Posts: 2,142	Google is good I just did a quick search on www.google.com using 'camless engines' and then one on 'electrohydraulic valves' and found a plethera of information out there. Seems to be lots of research articles from universities and such (lot of .edu sites). Just a start. E __________________ 1991 5.0 LX Coupe - 40,750 miles 331 cu. in. / Tremec 3550 / BFG Drag Radials 12.22 @ 114.31 mph - w/1.89 60'

01-09-2003, 02:09 PM	#4
stangsrule Registered Member Join Date: May 1999 Location: Indiana Posts: 512	I know it is not the quite the same thing but I know a while back a friend sent me a link to a site with a company that had come up with some rotary ceramic valves that looked pretty interesting and they had them mounted on a 5.0... I can't find it now but I think it was named something Coates or Coates something.... If it is still around and anybody has a link I would like to have it again! __________________ 92GT Lowered with Ebiach's and Koni's, Kenny Brown subframe connectors, lower G-brace and jacking rails. BBK upper and lower control arms, polyurethane bushings all around and Ken Bell blower, ram-air, 80mm mass air, SMC Alky Injection kit, J&S Knock Gaurd, TwEECer RT and a bunch of other stuff!

01-09-2003, 07:41 PM	#5
silver_pilate DURKA DURKA!! Join Date: Sep 1997 Location: Lubbock, TX...(TX panhandle) Posts: 1,418	I tuned into the Coate's design a while back. The site is www.coatesengine.com. Kickin' stuff. --nathan __________________ '91 GT, Coast 347, 9.5:1 compression, full intake, Wolverine 1087 cam, exhaust, Keith Craft ported Windsor Jr. Irons (235 cfm intake, 195 cfm exhaust), AOD, PI 3500 converter, Lentech valve body, 3.73's (4.10's in the works), and Yokohama ES100's out back. Daily Car: '04 Infiniti G35 Sedan 6MT

01-09-2003, 11:48 PM	#6
RPM427 Registered Member Join Date: Aug 2001 Location: Huntington NY Posts: 573	Hey fiveohpatrol, does your school have a Formula SAE racecar team? __________________ -1993 Mustang, 900rwhp 03-04 cobra based 4v swap, full Griggs setup, project underway -1994 Ranger w/ 427cid windsor (daily beater) check it out! Last edited by RPM427; 01-09-2003 at 11:53 PM..

01-10-2003, 12:42 AM	#7
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	we used to up until a couple years ago. It was really unorganized from what I hear, and they were irresponsible with the money, so they got shut down. Now it is revived as TRM, and we are trying to get the funding to do another formula SAE car. Check out the link in my sig. We've got a 84GT 342cid project thats just gettin started. Its fun building a stang with other people's money especially when I'm gonna be rippin it down the track in it! __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

01-10-2003, 12:41 PM	#8
stangsrule Registered Member Join Date: May 1999 Location: Indiana Posts: 512	Hey Thanks silver_pilate! The web site has changed a lot since I saw it last but that is the system I thought was so cool... I wish I could afford it on my car! __________________ 92GT Lowered with Ebiach's and Koni's, Kenny Brown subframe connectors, lower G-brace and jacking rails. BBK upper and lower control arms, polyurethane bushings all around and Ken Bell blower, ram-air, 80mm mass air, SMC Alky Injection kit, J&S Knock Gaurd, TwEECer RT and a bunch of other stuff!

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