Comments on: Jacobs shifts beyond engine braking, develops emissions-reductions technologies https://www.trucknews.com/test-drive/jacobs-shifts-beyond-engine-braking-develops-emissions-reductions-technologies/ Trucking news from the editors of Today's Trucking Fri, 11 Nov 2022 15:43:06 +0000 hourly 1 https://wordpress.org/?v=6.2.2 By: Michael J. Holihan https://www.trucknews.com/test-drive/jacobs-shifts-beyond-engine-braking-develops-emissions-reductions-technologies/#comment-466221 Sun, 06 Nov 2022 01:02:12 +0000 https://www.trucknews.com/?p=1003170303#comment-466221 Dear Mr. Menzies,
This is an excellent article on Jacobs newest Valve Technology “CDA”, which I’m familiar with. Do you know if they’ve encountered the excessive oil usage issue that some of the automotive gas engines have experienced with CDA type methods? Please see Patent # US11,421,565 “Control System and Method to Mitigate Reverse Oil Flow to the Combustion Chamber on Deactivated Cylinders”. This may offer a fix that does not interfere with their CDA technology.
Michael J. Holihan-Principal Engineer
Woodstock, Georgia

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