https://www.sve-tek.com/home daily 1.0 2026-03-29 https://www.sve-tek.com/about daily 0.75 2026-03-13 https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/1649640149247-9DMZD20KIZ589XCZUL6S/USCC_IP_image.jpg About Us https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/1651931570961-ID63RP6I0H84OEUXP0W6/word+cloud.png About Us https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/7d3bee1f-10a6-4498-9040-35ae1276bcd8/P5160848.JPG About Us https://www.sve-tek.com/markets daily 0.75 2026-03-04 https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/6896d427-0325-49e4-a044-3ab8161c6c04/group4uas.jpg Markets - UAS Propulsion The Sleeve Valve Engine type was thoroughly developed as an aircraft powerplant, and achieved great success in this application. By introducing compression ignition and turbocharging SVE Tech will bring the engine into compliance with the “one fuel forward” doctrine and improve operation at higher altitudes, while at the same time reducing fuel consumption compared to alternate systems. https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/1772656062883-J25OR9J1DHB68T9VHP3Y/unsplash-image-5n2EemBYQm4.jpg Markets - Green Energy The sleeve valve engine architecture offers advantages over conventional engines with respect to operation on Hydrogen (H2) fuel. This, in turn, enables an Internal Combustion Engine alternative for electrical power generation that favorably competes with fuel cell technology. An excellent application of this involves integration into Class 8 trucks, which can not maintain traditional operations with battery-only power. https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/ba33d9fa-4045-4cc4-afd6-01c0629f98cf/harley.jpeg Markets - Motorsports The Sleeve valve Engine has been investigated as an alternative power plant for the motorsports industry. It is well suited to installation in motorcycles, and a detailed study was carried for this application in early SV engine history. The inherent safety of diesel fuel is of great interest, and turbo diesel designs are attractive where high power and light weight are desirable. SVE Technology designs can be adapted to motorcycle, snowmobile and personal watercraft applications. https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/076dfebe-e732-4f96-b818-9b1dbb206e1b/army-motor-generator.jpeg Markets - Motor-Generator Systems The same advantages associated with UAV applications and green energy alternatives can be applied to ground power generation. Independent electrical power generation can be accomplished with traditional fuels or with emergent green technology. Sleeve Valve technology can be applied from low-HP portable gensets up to MWE scale. SVE Tech does not envision displacing all traditional power generation equipment, but in applications where weight and bulk are at a premium this technology is capable of providing needed power. https://www.sve-tek.com/innovation daily 0.75 2026-03-13 https://images.squarespace-cdn.com/content/v1/5ec321c2af33de48734cc929/1618497259178-6XJGK9GR6YAVBQL5L519/20140301_Trade-151_012-2.jpg Innovation https://images.squarespace-cdn.com/content/v1/5ec321c2af33de48734cc929/1607694583486-2PQT0LQ193RL7MCB6DX4/20140228_Trade+151_0046.jpg Innovation https://images.squarespace-cdn.com/content/v1/5ec321c2af33de48734cc929/1607694644871-IC85FNH781UNZSZEGHDR/Aro+Ha_0428.jpg Innovation https://www.sve-tek.com/technology daily 0.75 2022-05-07 https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/1649539470687-LXT3PSI0PAWBBC5LKZL3/centaurus.jpeg Technology https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/1649539823052-ZD2JKD29OP54R99843B2/Group3-suas.jpg Technology https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/1649542001690-PY6OYL8LBKL5JUMCC6GZ/sve270.jpg Technology https://www.sve-tek.com/modernization daily 0.75 2022-05-01 https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/1650233875382-RUIWY9QGUEN789I3ITNH/valvecfd.jpeg Modernization https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/1650234000495-S4C6NG7EMDMKZF06T2HR/31835230012_7ac0c89276_b.jpeg Modernization https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/1650234676546-KWOVGTV3214E9ZNMZT89/bigstock-Modern-Turbocharger-On-A-Steel-346550290_b.jpeg Modernization https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/1650234716339-1XALRO9ZJBHCV97LY3O4/sve270.jpg Modernization https://www.sve-tek.com/partners daily 0.75 2026-03-15 https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/a6ef3a91-0384-4943-a030-3fcc5b6f19bf/diesel-engine_dumarey-group.webp Partners - Dumarey USA, LLC Dumarey USA is a leading engine engineering consultancy firm located in the Detroit suburbs. Operating in the automotive and defense sectors (with a customer base including Boeing, NAVAIR, and AFRL), Dumarey USA has designed, developed and assembled complete automotive reciprocating piston engines for a number of automotive OEMs. Dumarey USA is a division of Dumarey Group, an internationally recognized supplier of advance product and services in the automotive, industrial/off-road, marine, and hydrogen sectors. https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/d3eca052-5434-4b38-a5d9-fe2180716bfa/morganstate.jpeg Partners - Morgan State University (of MD) Morgan Center for Advanced Energy Systems & Environmental Control Technologies (CAESECT) https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/8daf3b86-69a4-433d-a619-207a032e4bf7/aerostar.jfif Partners - Dave Stella and Frank Leslie (Aerostar Machine) Dave and Frank are the owners of Aerostar Machine Inc. in Baltimore, MD. They are partners in SVE Technology and have supported the development of the sleeve valve engine. Aerostar has manufactured two variants of the engine and supported demonstrations. The company's core capability is Computer Numeric Control (CNC) milling, turning and fabrication, specializing in stainless steel and aluminum. Integrated inspection and quality assurance practices. Custom component production, rapid-prototyping, and low rate production capabilities. https://www.sve-tek.com/morgan-state-university daily 0.75 2022-04-16 https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/17bc14f3-5dfd-45d5-97c8-9d9a39927b35/Engine+under+test.png Morgan State University Sleeve valve engine under test https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/56bc8f42-598b-4944-8490-5cfa76cb3e97/Morgan+Engine+Test+Lab.png Morgan State University Engine testing laboratory https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/bcc588b8-5bb4-41de-a5ec-0b87aec12e77/Schaefer-Engineering-Bld-2-1050x525.jpeg Morgan State University Morgan State University Engineering https://www.sve-tek.com/legacy daily 0.75 2022-05-07 https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/c00e9558-1863-43f1-b16e-23b76a5784cb/sleeve+vavle.jpg Legacy Daimler-Knight petrol engine https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/699a65bb-7a81-42db-8870-63f9650f28c3/Knight_sleeve-valve_engine_%28Autocar_Handbook%2C_Ninth_edition%29.jpeg Legacy Knight engine https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/1d06bb6c-186b-4481-b78e-7a5b327f74fa/600px-Bristol.centaurus.arp.750pix.jpg Legacy Bristol Centaurus 18cyl, 2200hp WW2 https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/e94bdde1-8316-4a3c-a14f-58a469f95995/600px-Napier_Sabre01.jpeg Legacy Napier Sabre 24 cyl, 3500hp WW2 https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/f5acc772-b64e-42ca-911e-d228c8d67859/1930+willys+knight.jpg Legacy - Early Development The first successful sleeve valve was patented by Charles Yale Knight, and used twin alternating sliding sleeves. It was used in some luxury automobiles, notably Willys, Daimler, Mercedes-Benz, Minerva, Panhard, Peugeot and Avions Voisin. Mors adopted double sleeve-valve engines made by Minerva. — Wikipedia The 1930 Willys Knight is shown at the right https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/9dbfb016-b20c-43e5-989b-52a34446802c/MarkIVTankWithUnditchingBeam1917.jpg Legacy - Poppet-Valve vs Sleeve-Valve Designs Sleeve valve engines were known to be extremely quiet, and more reliable than the contemporary poppet valve engines. Sleeve valve engines, with fewer moving parts, enjoyed a distinct advantage until leaded gasoline reduced the need for valve replacements in poppet engines. Sleeve valve applications included powering the original British tanks in WW 1, such as the Mark IV shown at the right, which used a Daimler, 6 cylinder sleeve valve engine. https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/385e2d19-bbc4-4328-ad39-535516a0a3de/Barr-Stroud-1921-350cc-Sleeve-Valve-10.jpeg Legacy - Single Sleeve Valve (SSV) Designs Two engineers patented a competing single-sleeve valve (SSV) engine design in 1910. This Peter Burt and James McCollum design, was used by the Scottish car maker Argyll, found use by other car manufacturers such Piccard-Pictet, and v-twin derivatives found there way into post-ww 1 motorcycles. The Barr-Stroud 1921, 350cc SSV motorcycle is shown at the right.. The SSV design proved adaptable to a wide range of fuels, with some small SSV auxiliary boat engines and electric generators built in the UK, prepared for burning 'paraffin in the 1920’s. SVE Technology engines use a single-sleeve design. https://images.squarespace-cdn.com/content/v1/6251ba1d1a8d297611d935da/34e592ab-a3d7-4932-8c2d-09fb7b1f089b/Rolls-Royce_Crecy.jpeg Legacy - Aircraft Engines A number of sleeve valve aircraft engines were developed following a seminal 1927 research paper from the RAE by Harry Ricardo. This paper outlined the advantages of the sleeve valve and suggested that poppet valve engines would not be able to offer power outputs much beyond 1500 hp (1,100 kW). Napier and Bristol began the development of sleeve-valve engines that would eventually result in limited production of two of the most powerful piston engines in the world: the Napier Sabre and Bristol Centaurus. Further development was curtailed when emphasis move to Whittle’s jet engine during WW2. At right, is the Rolls-Royce Crecy. 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