{"id":1202493,"date":"2023-11-13T12:05:04","date_gmt":"2023-11-13T17:05:04","guid":{"rendered":"https:\/\/www.prime-wow.com\/?p=1202493"},"modified":"2023-11-13T12:05:04","modified_gmt":"2023-11-13T17:05:04","slug":"this-inside-out-design-solves-most-of-the-rotary-engines-problems","status":"publish","type":"post","link":"https:\/\/www.prime-wow.com\/?p=1202493","title":{"rendered":"This inside-out design solves most of the rotary engine\u2019s problems"},"content":{"rendered":"
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Enlarge<\/a> \/<\/span> On the left, LiqudPiston’s High Efficiency Hybrid Cycle engine, on the right, a 25 hp Kohler KDW1003 diesel engine. (credit: LiquidPiston)<\/p>\n<\/figure>\n

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Rotary engines have an aura of cool. In games of Top Trumps<\/em><\/a>, the V12 might have been king, but a rotary was a joker, a wild card. A lack of mainstream success no doubt contributes; there are reasons they were never commonplace, including their oil-burning apex seals, which created emissions and fuel-consumption headaches.<\/p>\n

LiquidPiston thinks it has those problems solved, however, and in the process, it created a new internal combustion engine that’s small and efficient. It has demonstrated its tech on the bench and in a go-kart, but also in uncrewed aerial vehicles for the US military.<\/p>\n

While little about the rotary engine merits the word, in a “traditional” Wankel rotary, a triangle-shaped rotor turns within a chamber during its combustion cycle. Apex seals are fitted at the apices of the rotor, but they need constant lubrication with oil, plenty of which burns during combustion. So, a Wankel engine needs constant oil top-ups while dealing with the products of that burnt oil. And those apex seals wear down.<\/p>\n<\/div>\n

Read 12 remaining paragraphs<\/a> | Comments<\/a><\/p>\n


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\nSource: Ars Technica – This inside-out design solves most of the rotary engine\u2019s problems<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Enlarge \/ On the left, LiqudPiston’s High Efficiency Hybrid Cycle engine, on the right, a 25 hp Kohler KDW1003 diesel engine. (credit: LiquidPiston) Rotary engines have an aura of cool. In games of Top Trumps, the V12 might have been … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":1202494,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[27,110],"tags":[73],"class_list":["post-1202493","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ars-technica","category-unfiltered-rss","tag-ars-technica"],"_links":{"self":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts\/1202493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1202493"}],"version-history":[{"count":0,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts\/1202493\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/media\/1202494"}],"wp:attachment":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1202493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1202493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1202493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}