{"id":3462,"date":"2020-07-06T21:50:12","date_gmt":"2020-07-06T13:50:12","guid":{"rendered":"http:\/\/caucanimax.com\/blog\/?p=3462"},"modified":"2020-07-06T21:50:12","modified_gmt":"2020-07-06T13:50:12","slug":"why-can-reducing-thrust-increase-the-oil-pressure-when-eng-oil-pressure-low","status":"publish","type":"post","link":"https:\/\/caucanimax.com\/blog\/why-can-reducing-thrust-increase-the-oil-pressure-when-eng-oil-pressure-low\/","title":{"rendered":"A350 \u53d1\u52a8\u673a\u6ed1\u6cb9\u4f4e\u538b\u65f6\u4e3a\u4ec0\u4e48\u80fd\u901a\u8fc7\u51cf\u5c0f\u63a8\u529b\u6765\u589e\u52a0\u6ed1\u6cb9\u538b\u529b"},"content":{"rendered":"

\"\"<\/a><\/p>\n

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<\/p>\n

Q: ENG 1(2) OIL PRESS LO (AMBER ALERT)<\/strong><\/p>\n

\u201cGradually reduce thrust on the affected engine, in order to increase the oil pressure until the ECAM alert disappear.\u201dWhy can reducing thrust increase the oil pressure? Or is it beacause the reduced thrust is compatible with the reduced oil pressure?<\/p>\n

A:<\/strong><\/p>\n

Please first note that the OIL PRESS LO amber alert may result from either a leak in the oil system or a failure of the oil pump.<\/p>\n

In the case of an oil leak, the oil pressure drop is likely due to a low oil level in the tank not sufficient to prevent air from reaching the oil pump. The action to retard the thrust will reduce the suction of the oil pump.<\/p>\n

This will then result in the increase of the oil quantity in the tank and subsequently to the increase of the oil pressure from the pump.<\/p>\n

Note that as the oil pump will slow down with the thrust reduction, it is expected that the oil leak will also be reduced by this action.<\/p>\n

In the case of a failure of the oil pump, the pump is not able to deliver enough oil to the engine. The thrust reduction will have no impact on the operation of the pump but as the engine needs for oil will be reduced, it is expected that the oil pressure will increase.<\/p>\n

Finally, please note that in both cases, if the oil pressure continues to decrease and the thrust reduction action remains not sufficient to recover the correct oil pressure, message ENG 1(2) OIL PRESS LO (RED ALERT) will request to shut the engine down.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e4b\u524d\u7684\u7406\u89e3\u662f\u964d\u4f4e\u63a8\u529b\u662f\u4e3a\u4e86\u964d\u4f4e\u6ed1\u6cb9\u9700\u6c42\uff0c\u4f46\u5e76\u4e0d\u80fd\u589e\u52a0\u6ed1\u6cb9\u538b\u529b\u3002\u7a7a\u5ba2\u7684\u89e3\u91ca\u8bf4\u6709\u4e24\u79cd\u53ef\u80fd\u7684\u60c5\u51b5\uff0c\u4e00\u662f\u6ed1\u6cb9\u6cc4\u6f0f\uff0c\u6cb9\u7bb1 … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[113],"tags":[],"ppma_author":[5],"class_list":["post-3462","post","type-post","status-publish","format-standard","hentry","category-fly"],"authors":[{"term_id":5,"user_id":2,"is_guest":0,"slug":"yaoguai","display_name":"\u5996\u602a","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/dfe71d09a1a83f49a02a4400c69ef2c361c2d967eae2ffeeb6318b73a0da763f?s=96&r=g","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/posts\/3462","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/comments?post=3462"}],"version-history":[{"count":2,"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/posts\/3462\/revisions"}],"predecessor-version":[{"id":3465,"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/posts\/3462\/revisions\/3465"}],"wp:attachment":[{"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/media?parent=3462"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/categories?post=3462"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/tags?post=3462"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=3462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}