Internal combustion engine with dual induction system

Details Internal combustion engine with dual induction system Internal combustion engine with dual induction system

F - Mech Eng,Light,Heat,Weapons

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123/54, 123/98

F02M 19/10 (2006.01) F01L 3/06 (2006.01) F02B 31/04 (2006.01) F02B 31/08 (2006.01) F02F 1/42 (2006.01) F02M 13/04 (2006.01) F02M 25/07 (2006.01) F02M 35/108 (2006.01) F02B 1/04 (2006.01) F02B 31/00 (2006.01) F02B 75/02 (2006.01) F02F 1/24 (2006.01) F02M 35/10 (2006.01)

Patent

CA 1104893

ABSTRACT OF THE DISCLOSURE: A dual induction system has a primary induction passage to direct a fluid charge into a cylinder to swirl therein and a secondary induction passage to direct a second fluid charge into the cylinder in such a direction as to impede the swirl of the first fluid charge and lower the "swirl ratio" within the cylinder. A primary throttle valve controls the first fluid charge while a secondary throttle valve which is coordinated with the primary and remains closed until the primary opens wider than a predetermined amount, controls the second fluid charge. When only the primary throttle valve is open a high "swirl ratio" of 1.5 to 6 prevails in the cylinder while when both open the "swirl ratiol" drops to 0.5 to 1 and simulta- neously provides a high volumetric efficiency.

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