03-M Series - Kubota Construction Machinery - #1

Text version of the page

E-TVCS Technology for the clean âge. Kubota's proprietary TVCS (Three Vortex Combustion System) obtains an optimum air/fuel mixture by generating three intense swirling air flows (vortexes) within the spherical-combustion (swîrl) chamber. The New TVCS added a spécial concave recess on the piston head to force compression air in the swirl chamber and to smooth combustion gas exhaust. The E-TVCS, based on the New TVCS. is aimed at a drastic émission réduction. To obtain even better combustion effïciency, an E-TVCS with a tapered injection throat is used in the 03-M models. E-TVCS (IDI) E-TVCS produces far less soot, HC and CO thanks to a belter match between the injection nozzie throat and the concave recess on the piston head. The injection pump and nozzie are better matched with the combustion chamber to reduce NOx émission. 1 Throat ot Combustion Chamber 2. Combustion Chamber 3. Three Vortex 4. Injection Nozzie 5. Combustion Chamber 6. Gtow Plug 7. Recess Concave 8. Valve Recess 9. Piston Emission Data Has the capabilrty of meeting and passing future EPA régulations. Ail models except the turbo (V2003-M-T) are equipped with a closed breather System. Emission Comoarlson f PA «mission uutlientjcAlor value NOx + HC Company A OmparwBI Company 02 V2203-M V2403-M