{"id":{"repo_id":"sherbrooke","oai_identifier":"oai:usherbrooke.scholaris.ca:11143/24008"},"canonical_url":"https://search.dev.ndltd.org/etd/sherbrooke/oai:usherbrooke.scholaris.ca:11143/24008","repository":{"repo_id":"sherbrooke","name":"Université de Sherbrooke","base_url":"https://usherbrooke.scholaris.ca/server/oai/request"},"display":{"title":"Three-dimensional modeling of sealing and wear of XTS-210 engine Apex seals","abstract":"Rotary engines offer a compact, lightweight alternative to conventional reciprocating engines, with advantages such as high power density and fewer moving parts. However, traditional rotary engines such as the Wankel have drawbacks such as excessive seal wear, combustion gas leaks and limited durability. LiquidPiston’s X-Engine features an innovative geometry designed to solve these problems, offering compatibility with compression-ignition fuels, increased efficiency and simplified mechanical design. The engine competes with Wankel rotary architectures in targeted applications such as aeronautics (especially hybrid UAVs) and military tactical generators, where optimization of power-to-weight ratio is essential. This work enhances the understanding of the wear mechanisms that constrain the performance of the XTS-210 and provides recommendations for improving its sealing system through advanced modeling and design optimization.","abstract_html":"Rotary engines offer a compact, lightweight alternative to conventional reciprocating engines, with advantages such as high power density and fewer moving parts. However, traditional rotary engines such as the Wankel have drawbacks such as excessive seal wear, combustion gas leaks and limited durability. LiquidPiston’s X-Engine features an innovative geometry designed to solve these problems, offering compatibility with compression-ignition fuels, increased efficiency and simplified mechanical design. The engine competes with Wankel rotary architectures in targeted applications such as aeronautics (especially hybrid UAVs) and military tactical generators, where optimization of power-to-weight ratio is essential. This work enhances the understanding of the wear mechanisms that constrain the performance of the XTS-210 and provides recommendations for improving its sealing system through advanced modeling and design optimization.","abstract_has_math":false,"creators":["Ordioni, Louis"],"institution":"Université de Sherbrooke","degree_name":"M. Sc. A.","degree_level":"Maîtrise","degree_discipline":"Génie mécanique","degree_department":null,"school":null,"contributors":[],"advisors":["Picard, Mathieu"],"committee_chairs":[],"committee_members":[],"year":2026,"date_issued":"2026","date_published":"2026","updated_at":"2026-07-27T21:07:39Z","subjects":["Rotary engine","Wear","Apex seal","Internal combustion engine","Durability","Moteur rotatif","Usure","Segment d'arête","Moteur à combustion interne","Durabilité"],"languages":["en"],"rights":[],"rights_urls":["http://creativecommons.org/licenses/by-nc-nd/4.0/"],"identifier_entries":[{"key":"dc:identifier.doi","label":"DOI","values":["https://doi.org/10.71892/11143/1415"],"render_values":[{"text":"https://doi.org/10.71892/11143/1415","href":"https://doi.org/10.71892/11143/1415","code":true}]}]},"links":{"outbound_url":"https://hdl.handle.net/11143/24008","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Picard, Mathieu"]},{"key":"dc:creator","label":"Author","values":["Ordioni, Louis"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2026-02-13T15:34:06Z"]},{"key":"dc:date.issued","label":"Date","values":["2026"]},{"key":"dc:publisher","label":"Institution","values":["Université de Sherbrooke"]},{"key":"dc:type","label":"Dc Type","values":["Mémoire de maîtrise"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Génie mécanique"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Maîtrise"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M. 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However, traditional rotary engines such as the Wankel have drawbacks such as excessive seal wear, combustion gas leaks and limited durability. LiquidPiston’s X-Engine features an innovative geometry designed to solve these problems, offering compatibility with compression-ignition fuels, increased efficiency and simplified mechanical design. The engine competes with Wankel rotary architectures in targeted applications such as aeronautics (especially hybrid UAVs) and military tactical generators, where optimization of power-to-weight ratio is essential. This work enhances the understanding of the wear mechanisms that constrain the performance of the XTS-210 and provides recommendations for improving its sealing system through advanced modeling and design optimization.","Les moteurs rotatifs offrent une alternative compacte et légère aux moteurs alternatifs conventionnels, avec des avantages tels qu’une densité de puissance élevée et moins de pièces mobiles. Cependant, les moteurs rotatifs traditionnels tels que le Wankel présentent des inconvénients tels que l’usure excessive des joints, les fuites de gaz de combustion et une durabilité limitée. Les moteurs X-Engine de LiquidPiston présentent une géométrie innovante qui peut résoudre ces problèmes, en offrant une compatibilité avec les carburants à allumage par compression, une efficacité accrue et une conception mécanique simplifiée. Le moteur entre en concurrence avec les architectures rotatives Wankel dans des applications ciblées telles que l’aéronautique (en particulier les drones hybrides) et les générateurs tactiques militaires où l’optimisation du rapport poids/puissance est essentielle. Ce travail contribue à une meilleure compréhension des mécanismes d’usure qui limitent les performances du XTS-210 et offre des conseils pour améliorer son système d’étanchéité grâce à la modélisation et à l’optimisation de la conception."]},{"key":"dc:title","label":"Title","values":["Three-dimensional modeling of sealing and wear of XTS-210 engine Apex seals"]}]}],"canonical_facts":{"dc:contributor.advisor":["Picard, Mathieu"],"dc:creator":["Ordioni, Louis"],"dc:date.accessioned":["2026-02-13T15:34:06Z"],"dc:date.issued":["2026"],"dc:description.abstract":["Rotary engines offer a compact, lightweight alternative to conventional reciprocating engines, with advantages such as high power density and fewer moving parts. However, traditional rotary engines such as the Wankel have drawbacks such as excessive seal wear, combustion gas leaks and limited durability. LiquidPiston’s X-Engine features an innovative geometry designed to solve these problems, offering compatibility with compression-ignition fuels, increased efficiency and simplified mechanical design. The engine competes with Wankel rotary architectures in targeted applications such as aeronautics (especially hybrid UAVs) and military tactical generators, where optimization of power-to-weight ratio is essential. This work enhances the understanding of the wear mechanisms that constrain the performance of the XTS-210 and provides recommendations for improving its sealing system through advanced modeling and design optimization.","Les moteurs rotatifs offrent une alternative compacte et légère aux moteurs alternatifs conventionnels, avec des avantages tels qu’une densité de puissance élevée et moins de pièces mobiles. Cependant, les moteurs rotatifs traditionnels tels que le Wankel présentent des inconvénients tels que l’usure excessive des joints, les fuites de gaz de combustion et une durabilité limitée. Les moteurs X-Engine de LiquidPiston présentent une géométrie innovante qui peut résoudre ces problèmes, en offrant une compatibilité avec les carburants à allumage par compression, une efficacité accrue et une conception mécanique simplifiée. Le moteur entre en concurrence avec les architectures rotatives Wankel dans des applications ciblées telles que l’aéronautique (en particulier les drones hybrides) et les générateurs tactiques militaires où l’optimisation du rapport poids/puissance est essentielle. Ce travail contribue à une meilleure compréhension des mécanismes d’usure qui limitent les performances du XTS-210 et offre des conseils pour améliorer son système d’étanchéité grâce à la modélisation et à l’optimisation de la conception."],"dc:identifier.doi":["https://doi.org/10.71892/11143/1415"],"dc:identifier.uri":["https://hdl.handle.net/11143/24008"],"dc:language.iso":["en"],"dc:publisher":["Université de Sherbrooke"],"dc:rights.uri":["http://creativecommons.org/licenses/by-nc-nd/4.0/"],"dc:subject":["Rotary engine","Wear","Apex seal","Internal combustion engine","Durability","Moteur rotatif","Usure","Segment d'arête","Moteur à combustion interne","Durabilité"],"dc:title":["Three-dimensional modeling of sealing and wear of XTS-210 engine Apex seals"],"dc:type":["Mémoire de maîtrise"],"thesis:degree_discipline":["Génie mécanique"],"thesis:degree_level":["Maîtrise"],"thesis:degree_name":["M. Sc. A."],"thesis:institution_name":["Université de Sherbrooke"]},"updated_at":"2026-07-27T21:07:39Z"}