{"id":5790,"date":"2023-05-22T05:44:46","date_gmt":"2023-05-22T05:44:46","guid":{"rendered":"https:\/\/seadonna.com\/blog\/?p=5790"},"modified":"2023-06-02T17:27:17","modified_gmt":"2023-06-02T17:27:17","slug":"fuel-injection-vit-pump-variable-injection-timing-pump-meo-class-4-marine-engineer-study-guide-mechanical-engineer","status":"publish","type":"post","link":"https:\/\/seadonna.com\/blog\/fuel-injection-vit-pump-variable-injection-timing-pump-meo-class-4-marine-engineer-study-guide-mechanical-engineer\/","title":{"rendered":"FUEL INJECTION | VIT PUMP &#8211; VARIABLE INJECTION TIMING PUMP | | MEO CLASS 4 | MARINE ENGINEER STUDY GUIDE |  MECHANICAL ENGINEER"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5791 alignleft\" src=\"https:\/\/seadonna.com\/blog\/wp-content\/uploads\/2023\/05\/WhatsApp-Image-2023-05-22-at-11.17.11-AM-300x280.jpeg\" alt=\"\" width=\"376\" height=\"351\" srcset=\"https:\/\/seadonna.com\/blog\/wp-content\/uploads\/2023\/05\/WhatsApp-Image-2023-05-22-at-11.17.11-AM-300x280.jpeg 300w, https:\/\/seadonna.com\/blog\/wp-content\/uploads\/2023\/05\/WhatsApp-Image-2023-05-22-at-11.17.11-AM-768x716.jpeg 768w, https:\/\/seadonna.com\/blog\/wp-content\/uploads\/2023\/05\/WhatsApp-Image-2023-05-22-at-11.17.11-AM-155x145.jpeg 155w, https:\/\/seadonna.com\/blog\/wp-content\/uploads\/2023\/05\/WhatsApp-Image-2023-05-22-at-11.17.11-AM.jpeg 1024w\" sizes=\"auto, (max-width: 376px) 100vw, 376px\" \/>In the variable injection timing <strong>(VIT) pump used in MAN B&amp;W engines<\/strong>, the governor output shaft is the controlling parameter. Two linkages are actuated by the regulating shaft of the governor.<\/p>\n<p>The upper control linkage changes the injection timing by raising or lowering the plunger in relation to the cam. The lower linkage rotates the pump plunger and thus the helix in order to vary the pump output.<br \/>\nIn the Sulzer variable injection timing system the governor output is connected to a suction valve and a spill valve.<\/p>\n<p>&nbsp;<\/p>\n<p>The closing of the pump suction valve determines the beginning of injection. Operation of the spill valve will control the end of injection by releasing fuel pressure. No helix is therefore present on the pump plunger.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5573 alignright\" src=\"https:\/\/seadonna.com\/blog\/wp-content\/uploads\/2023\/04\/seadonna-1-300x61.png\" alt=\"\" width=\"152\" height=\"31\" srcset=\"https:\/\/seadonna.com\/blog\/wp-content\/uploads\/2023\/04\/seadonna-1-300x61.png 300w, https:\/\/seadonna.com\/blog\/wp-content\/uploads\/2023\/04\/seadonna-1-1024x210.png 1024w, https:\/\/seadonna.com\/blog\/wp-content\/uploads\/2023\/04\/seadonna-1-768x157.png 768w, https:\/\/seadonna.com\/blog\/wp-content\/uploads\/2023\/04\/seadonna-1-155x32.png 155w, https:\/\/seadonna.com\/blog\/wp-content\/uploads\/2023\/04\/seadonna-1.png 1416w\" sizes=\"auto, (max-width: 152px) 100vw, 152px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the variable injection timing (VIT) pump used in MAN B&amp;W engines, the governor output shaft is the controlling parameter. Two linkages are actuated by the regulating shaft of the governor. The upper control linkage changes the injection timing by raising or lowering the plunger in relation to the cam. The lower linkage rotates the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5791,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[79],"tags":[],"class_list":["post-5790","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-marine-engineering-competency-exams-study-blogs"],"_links":{"self":[{"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/posts\/5790","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/comments?post=5790"}],"version-history":[{"count":2,"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/posts\/5790\/revisions"}],"predecessor-version":[{"id":5793,"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/posts\/5790\/revisions\/5793"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/media\/5791"}],"wp:attachment":[{"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/media?parent=5790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/categories?post=5790"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/seadonna.com\/blog\/wp-json\/wp\/v2\/tags?post=5790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}