sleeve valve engine
Posted by john o sutherland on March 01, 2001, sutherland_ad_jps_dot_net
Does anybody have information on current sleeve valve engine projects, manufacturers, research etc.?
Posted by Wesley van de Ven on October 26, 1999, a_dot_vandeven_ad_chello_dot_nl
who can help me find or explain detailed information about a sleeve valve engine. This type of combustion engine is used in the early 20s according to my information. The engine uses a rotating disk for in- and exhaust. Please help me!
Posted by Philippe ROUYER on March 16, 2001, philipperouyer_ad_hotmail_dot_com
The Bristol Hercules was indeed a sleeve valve engine. It was fitted to many aircarfts (Bristol Beaufighter, some Hallifax, and for a short period, Lancasters. It was a twin 14 cylinder radial. Sleeve valve engines were first designed fot automobiles, and were introduced by Panhard at the Salon de l'Auto in 1910. Panhard produced a number of sleeve valve engines of various capacities. May were fitted to Paris buses in the 1930's and to the famous AMD armoured car.
The principle of a sleeve valve engine : there are no proper valves. The moving sleeve moves up and down within the cylinder, opening or closing small apertures acting like valves. In theory, it is simpler than a "traditional" engine, but the pairing of the sleeves with the cylinders requires high precision (of the order of 1/1000 inches) I was talking about it last sunday with my father who worked for Panhard in 1934-1965.
Posted by Larry on December 03, 2000, LMF1415_ad_aol_dot_com
I am looking at purchasing a 1924 R & V Knight touring car. I have not been able to find any info on this vehicle. The car is a model H, 8 cylinder sleave valve. I have been told R & V manufactured bus engines. If anyone has any info, please email.
Posted by Joseph H on November 23, 2000, 2dote_ad_altavista_dot_com
Look for a book called Valve Mechanisms for High Speed Engines. I forget the author, and I've tried to buy this book (it is out of print), and I cannot find a used copy anywhere... anyway, it explains them very well, with detailed pictures and specs for different kinds of sleeve valves, thier uses, advantages and problems.
Posted by fedd kohler on October 17, 2000 , ckohler_ad_gte_dot_net
willeys knight developed this engine ,built in toledo ohio this used a camshaft to slide a second sleave with slots that uncovered the ex &intake ports
Posted by William E. Bobb on September 19, 2000, w_dot_e_dot_bobb_ad_att_dot_net
Mr Douglas Woodard account of the sleeve-valve engine is excellent, you can also read "Modern Petrol Engines," by Arthur W. Judge, publisher: Chapman and Hall Ltd, 11 New Fetter Lane, London E.C. 4. United Kingdom.
I think Bristol would be a good place to visit, since most of the technology and production for the sleeve-valve engine was done there,you may even find some working engines!?
Happy researching!William E. Bobb
Posted by Douglas Woodard on September 19, 2000, dwoodard_ad_becon_dot_org
Sleeve valves do not use a rotating disk but a reciprocating and rotating cylinder. Wankel invented a disk valve early in his career which was not widely used, and the Aspin and Cross rotating valves may be of interest.
The Knight double sleeve valve was used by several car makers early in the 20th century, mostly by Daimler in Britain. It went out of use because it was hard to lubricate and made for a very smoky (although smooth and quiet) engine.
The Burt-McCollum (spelling?) single sleeve valve was successful (after much development) in British aircraft engines around WWII, notably the Bristol aircooled radials, the Perseus, the Hercules, and the Centaurus, along with the sparsely produced Aquila and Taurus and the experimental Orion. The Napier Sabre (liquid cooled flat H24) was used in in some British production fighters (Hawker Typhoon and Tempest) and some experimental aircraft. Rolls-Royce finally switched to the sleeve valve for the experimental Exe and Crecy and its last production design the second Eagle (liquid cooled flat H24 of 3500 hp) which was produced in small quantities (I think about fifty) for the first version of the Westland Wyvern naval strike aircraft.
The British Air Ministry contracted for research on the single sleeve valve by Ricardo Engineering and Bristol Aero-Egines in the 1920's; the most attractive feature at the time seemd to be the possibility it offered of working at higher compression ratios and thus giving more power and economy. After the development of the sodium-cooled poppet exhaust valve, the sleeve valve was not so attractive but the British thought it still had advantages and persevered.
Pratt and Whitney in the US experimented with the sleeve valve but did not put it into production, which they may eventually have come to regret when they got deeply into the R-4360 program.
Some postwar production aircraft which used Bristol sleeve-valve engines were the Bristol 170 Freighter, the Handley-Page Hermes, the Blackburn Beverley, and the Nord Noratlas.
I think there were a few limited-production cars (Bristol and others) up to about 1950 which used the single sleeve valve . There may be a sleeve valve research engine still in production in very small quantities, possibly on a special order basis.
You will find information on the sleeve valve in several books, notably:
Some Unusual Engines, by L. J. K. Setright (U.K., 1970s?)
Memories and Machines, by Sir Harry Ricardo (Autobiography). London: Constable, 1968.
The High-Speed Internal Combustion Engine, by Sir Harry Ricardo, several editions (5th edition by Ricardo and Hempson, Edinburgh (?): Blackie (?), 1957).
The Ricardo Story: the Autobiography of sir Harry Ricardo, Pioneer of Engine Research.
Published by the Society of Automotive Engineers, 1992.
Engines and Enterprises, the Life Work of Sir Harry Ricardo
by John Reynolds
Alan Sutton Publishing, 1999.
By Jupiter! (Life of Sir Roy Fedden of Bristol Aero-engines)by Bill Gunston (U.K., 1970's?)
Fedden by Bill Gunston (U.K., 1990's?)
Sir Roy Fedden published two articles on the development of Bristol sleeve-valve engines in the Journal of the Royal Aeronautical Society. I think one was in 1948 and the later one might have been about 1956.
Douglas Woodard St. Catharines, Ontario, Canada
Posted by Bill Chaney on May 24, 2000, willchan_ad_ccpl_dot_carr_dot_org
The Sleeve valve was developed for radial aircraft engines. It reached it peak near the end of WWII in the great fighters with Bristol engines. The jets ended this. There is a sleeve inside the cylinder that works off a cam and lever to rotate left and right around the long axis. Openings cut
into the sleeve then align with intake and exhaust ports in the cylinder walls allowing fuel/air in and burnt gases out. In the 80's, Keith Duckworth (one half of Cosworth racing engine fame) played with sleeve valve engines for possible racing use. I saw a short article in Road & Track I think about his work.
Using his own money, he developed a simple test mule engine that was developing nearly as much power per liter as the best racing engines of the time. He felt that most of the sealing problems the aircraft engines had (he had started his career working at the factory building them) had been solved
by advances in metalurgy and oil properties.
Posted by Ive on April 15, 2000
Bristol made radial aeroengines with sleeve valve system. Complex but durable, 3000 hours TBO versus P&W Double Wasp R-2800 with 2000 hours TBO. Napier and R&R also tried in WW2 an prior, but without much luck. Check in library "Aircraft Engines" and "Jane's" 1945-1965.
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