rotary valves development


Posted by Jonathan Schmidt, jonathanschmidt_AT_mail_DoT_com, Huntington Beach CA on Sat Oct 27 2001
I am interestred in prototyping a good rotary or sleeve valve cylinderhead design. If anyone has a concept that is ready to be CAD modeld and built please contact me, I am ready to begin if the design look promising. jonathanschmidt@mail.com
Posted by Alfonso Torregrosa, fonthor_AT_hotmail_DoT_com, Madrid on Wed Oct 24 2001
I have been doing some calculations on rotary valves. I am a 4th couse student on Industrial Physics. I have designed an engine of my own. I think it could work. The sealing problem , the thermal dilatation problem and the wear problem are solved. Anyone taking a look to the desing will realize of the advantages from other previous rotary valve engines. Emails wellcome and encouraged. Fonthor@hotmail.com
Posted by Chris Harris (Mr),ce_harris_AT_yahoo_DoT_com, Auckland on Sat Sep 15 2001<
I very much support the idea of forming a consortium based on a nondisclosure agreement, which need not be complex. I think it is vital to get critical mass in this way. The Australian firm of A E Bishop(http://www.aebishop.com) has just received an A$3 million grant from the Australian government to develop a Cross type rotary valve, but this only happened because Bishop is one of Australia's leading firms of precision engineers. To attract any kind of funding (gov't or VC) I think independent inventors will need to form a network. Likewise Coates with the WelltoWire gas company (http://www.welltowire.com) which has supposedly contracted to purchase 11,000 Coates engines for US$47,000 each to run on corrosive sour gas. It is perhaps only a matter of time until some publication like Business Week does a story on Coates, Bishop, etc, and having a solid network of independent inventors in place at that point will ensure VC interest. It's obvious that such a network would get taken much more seriously than 100 independent "blokes in sheds" who've never heard of each other. I should add on a personal note that I'm a qualified mechanical engineer and that I see RVE's as having some promise in the small engine field as an alternative to two strokes. My interest in RVE's really took off when I heard about an NZ racing car designer (ret'd) called Ralph Watson who has successfully competed a Cross-type engine which he built twenty years ago now in hill-climbing races throughout the '80 and '90s. Mr Watson's engine which is of simple construction and which uses materials commonly available in the early 1980s has supposedly lasted for 30,000 miles now. See URL http://members.aol.com/bsaimages/comp.htm, and search down for "Watson." Taking this as a baseline, it should be possible to at least develop a competitive small engine with careful selection of modern materials, and that's what I've been looking into myself.
Posted by mithilesh adhikari, mithilesh_adhikari_AT_mailcity_DoT_com, pune on Thu Sep 6 2001
MY NAME IS MITHILESH ADHIKARI AND I AM FROM PUNE,INDIA. I AM A STUDENT OF MECHANICAL ENGINEERING (PUNE UNIVERSITY) PARTICULARLY INTERESTED IN AUTOMOBILES. I CAME ACROSS AN INTRESTING TOPIC "REVIVE THE ASPIN" (JAN 2001,AUTOINDIA ISSUE) BY KEVIN ASH. THE TOPIC (ASPIN VALVES) IS OF GREAT INTREST AND I,THEREFORE, REQUEST YOU TO PLEASE MAIL ME SOME INFORMATION REGARDING ASPIN VALVES AND A FEW RECENT DEVELOPMENTS IF POSSIBLE ALONG WITH SOME ILLUSTRATIONS. ANY BOOKS AS WELL AS WEB SITES GIVING INFORMATION ON ASPIN VALVES WILL BE OF GREAT HELP. INFORMATION OF ANY SORTS WILL BE GREATLY APPRECIATED. I ALSO REQUEST YOU TO KINDLY REPLY TO MY MAIL PRIVATELY. HOPING FOR A FAVOURABLE REPLY FROM YOU..
Posted by Jamie, renault_AT_pacifier_DoT_com, Portland, Oregon,
wanting to develop a rotary valve cylinder haed for Renault 4 cylinder engine. will be used for racing intially but hopefully go into prodcution in new USA built small car. you can contact me at r-sport dot net. Any info would be very helpfullin our developemnt program.
Posed by Bill B ohach, engr121_AT_hotmail_DoT_com, Georgia, Tue Aug 14 2001
I am in the process of receiving a patent on an overhead rotary valve engine. I built it and it ran, albeit not as good as should have, because I did not get the valve timing precise. I believe there are some problems with lubrication, coefficients of thermal expansion and cooling. I have solved those problems. Do find it interesting that the major US car companies have a non interest when it is proven that frictional losses are reduced. Moving parts are greatly reduce, thus saving money and higher compression = higher efficiency. Would be great for a hybrid vehicle. Where to go from here? Join together forming a consortium to get this off the ground?
Posed by Erick Went, erick_AT_regunlim_DoT_com, San Jose, California,on Mon Aug 6 19:21:07 2001
I have been doing research on alternative engines, hydrogen namely. Rotary valves offer solutions to many of the problems we have seen. I have a budget to obtain a test engine. If anyone has any information, please email me.
Posted by Terry Buelna, tbuelna_AT_gte_DoT_net, on Sat Aug 4 2001
I have US pat. 5,052,349 for an IC engine rotary valve. As for automotive use of rotary valves, I don't really see it happening. What the automakers currently have (poppet valves) works very well. No manufacturer is going to spend the time and effort to develop rotary valves when they're having no trouble selling millions of cars every year with poppet valves. Besides, the best application for a high speed and high airflow capable device (like a rotary valve) is a racing engine. But once again, I'm sure most racing sanctioning bodies would quickly outlaw it. People have been trying to push rotary valves for decades. In my opinion, it's a lost cause.
Posted by RONALD J. CONKLIN, RJCONKLIN012_AT_YAHOO_DoT_COM, on Sat Jul 21 200
INVENTOR OF ROTARY VALVE. U.S. PATENT 5205251. FILED AUGUST 5, 1992.
Posted by Darius S. , slaski1_AT_hotmail_DoT_com
Many have been made and patented, why they are not in use seems to be in the seal!? Great design...98% less parts than a standard valve train. Great design..again.. but I think most of your energies should be in starting an automobile company or some kind of after-market business similair to the ones that flock around porsches, hondas, and Volkswagens(you know Ruff, Sachs, and don't remember the good ones). Better yet start a racing team, and stick the design where it hurts, there reputation. I'm interested, have done much work on "Rotry Vlv Sys". My design was later to be found as an exact reproduction of my own down to the seal springs in the patent books regestered to a gentleman in Georgia,USA..forgot the Pat. #. Anyway trying to market or sell a design soley on it's own merits can become "aquired" and just a soon lost leaving more of us asking the same questions, why havent they brought it out!?
Posted by Bill Bohach on Sat May 19 2001, engr121_AT_hotmail_DoT_com
I have a pat.pending with roary valve. I solved the seal problem and the bearing problem. Built an engine. Compression was so high I couldn't get it to turn over til I lowered the compression to about 12 to 1. Valve timing solved too. To those of us who want to band together 1'm game. Got mine in to Ford to look at. RSVP Bill
Posted by chandan on Mon 13 Aug, chandankar@epatra.com or shyam_ rechmr@rediffmail.com
we are developing a modified aspin/ rotary valves. but before we go ahead we need to know the previous works patented or published. if you can help us or need any information do mail us 
Posted by Bill B ohach, Georgia on Tue Aug 14, engr121_AT_hotmail_DoT_com
I am in the process of receiving a patent on an overhead rotary valve engine. I built it and it ran, albeit not as good as should have, because I did not get the valve timing precise.
I believe there are some problems with lubrication, coefficients of thermal expansion and cooling. I have solved those problems.
Do find it interesting that the major US car companies have a non interest when it is proven that frictional losses are reduced. Moving parts are greatly reduce, thus saving money and higher compression = higher efficiency. Would be great for a hybrid vehicle.
Where to go from here?
Join together forming a consortium to get this off the ground?
Posted by Terry Buelna Huntington Beach, CA on Sat Aug 4, tbuelna_AT_gte_DoT_net
I have US pat. 5,052,349 for an IC engine rotary valve. As for automotive use of rotary valves, I don't really see it happening. What the automakers currently have (poppet valves) works very well. No manufacturer is going to spend the time and effort to develop rotary valves when they're having no trouble selling millions of cars every year with poppet valves. Besides, the best application for a high speed and high airflow capable device (like a rotary valve) is a racing engine. But once again, I'm sure most racing sanctioning bodies would quickly outlaw it. People have been trying to push rotary valves for decades. In my opinion, it's a lost cause.
Posted by RONALD J. CONKLIN, ST.CLAIR SHORES MICHIGAN on Sat Jul 21, RJCONKLIN012_AT_YAHOO_DoT_COM
INVENTOR OF ROTARY VALVE. U.S. PATENT 5205251. FILED AUGUST 5, 1992.
Posted by Darius S. on Mon Jun 25, slaski1_AT_hotmail_DoT_com
Many have been made and patented, why they are not in use seems to be in the seal!? Great design...98% less parts than a standard valve train. Great design..again.. but I think most of your energies should be in starting an automobile company or some kind of after-market business similair to the ones that flock around porsches, hondas, and Volkswagens(you know Ruff, Sachs, and don't remember the good ones). Better yet start a racing team, and stick the design where it hurts, there reputation. I'm interested, have done much work on "Rotry Vlv Sys". My design was later to be found as an exact reproduction of my own down to the seal springs in the patent books regestered to a gentleman in Georgia,USA..forgot the Pat. #. Anyway trying to market or sell a design soley on it's own merits can become "aquired" and just a soon lost leaving more of us asking the same questions, why havent they brought it out!?
Posted by Bill Bohach, engr121_AT_hotmail_DoT_com on Sat May 19 18:22:17 2001
I have a pat.pending with roary valve. I solved the seal problem and the bearing problem. Built an engine. Compression was so high I couldn't get it to turn over til I lowered the compression to about 12 to 1. Valve timing solved too. To those of us who want to band together 1'm game. Got mine in to Ford to look at. RSVP Bill
Posted by Anton Jurun on January 25, 2001
I am very interested in Rotarty valves for the ICE but nobody seems to have an interest in the enormous After market, and the people begging to have these introduced.
The numbers on these are amazing, and are in extreme demand by the many people of the modern performance crowd.I am slightly irritated with th amount of development reached, yet the lack of availability.
I have been working on cars for Years and I think that this is the most amazing thing since I learned about OHC's (about 9 Desperate to get a-hold of some I feel these are a desperately needed in the automotive world.
please help the modern hotrodder's
Posted by Craig C on October 22, 2000, 2300OHC_ad_aol_dot_com

Posted by Bill Bohach on Sat May 19 , engr121_AT_hotmail_DoT_com
I have a pat.pending with roary valve. I solved the seal problem and the bearing problem. Built an engine. Compression was so high I couldn't get it to turn over til I lowered the compression to about 12 to 1. Valve timing solved too. To those of us who want to band together 1'm game. Got mine in to Ford to look at. RSVP Bill
Posted by Anton Jurun on January 25, 2001
I am very interested in Rotarty valves for the ICE but nobody seems to have an interest in the enormous After market, and the people begging to have these introduced.
The numbers on these are amazing, and are in extreme demand by the many people of the modern performance crowd.I am slightly irritated with th amount of development reached, yet the lack of availability.
I have been working on cars for Years and I think that this is the most amazing thing since I learned about OHC's (about 9 Desperate to get a-hold of some I feel these are a desperately needed in the automotive world.
please help the modern hotrodder's
Posted by Craig C on October 22, 2000, 2300OHC_ad_aol_dot_com
There are a fractured few of us that are using our own time and money to develop rotary valve systems.It would be to our advantage,for all of us ,to band together, would it not? I would be willing to sign a non disclosure agreement.This is an area of development which if properly promoted,could have a positive impact on the enviornment as well as our economy. George Coates is probably the king of the rotary valve engine.See "coatesengine.com"The one disadvantage to his design is wear of the seals.I think I have the answer to this problem,or at least part of it.I would enjoy talking to other valve developers.
Posted by Iskender V. Kutlucinar on September 12, 2000, ccvt2_ad_aol_dot_com
I have designed, built, and did some testing on rotary valve engines resulting 2 US patents (5,490,485 and 5,967,108). Let me know what is your development and some backgroud, maybe I can help you. Iskender V. Kutlucinar, HyComp, Inc.
4273 Howard Avenue, Kensington, MD 20895
Tel 301-571-4944, fax 301-571-4859

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