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Message: [QUOTE="andharri, post: 1537249, member: 31258"] I started with a search for Sturman Industries on Google and that led me to the Caterpillar lawsuit and a few patents. With those patents I just used the cited patents listed and branched out pretty rapidly. You might find patent US5454359A to be interesting. Navistar engineers developed a continuous deaeration device for the 7.3l It consisted of a tube that extended from the oil passages into the oil rail. That way the oil that fed the injectors came from the top of the oil rail. Any air bubbles in the system were therefore sucked from the top of the rail (where they would accumulate) through the injector and expelled. The benefits listed were less cranking time to start and "problems associated with entrapped air in the high pressure rails disappear as well." Of course this would only work for non-emulsified air bubbles, such as after draining the HPO system and refilling. [/QUOTE]

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