Flow control device of a helically-shaped intake port

Details Flow control device of a helically-shaped intake port Flow control device of a helically-shaped intake port

F - Mech Eng,Light,Heat,Weapons

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F02F 1/24 (2006.01) F01P 3/02 (2006.01) F02B 31/08 (2006.01) F02F 1/42 (2006.01) F02B 1/04 (2006.01)

Patent

CA 1208090

A FLOW CONTROL DEVICE OF A HELICALLY-SHAPED INTAKE PORT ABSTRACT OF THE DISCLOSURE A helically-shaped intake port comprising a helical portion formed around an intake valve and a substantially straight inlet passage portion tangentially connected to the helical portion. A bypass passage is branched off from the inlet passage portion and connected to the helical portion. A rotary valve is arranged in the bypass passage and actuated by a vacuum operated diaphragm apparatus. The rotary valve is opened when the amount of air fed into the cylinder of an engine is increased beyond a predetermined value. A cooling water passage is arranged beneath and near the bypass passage.

406150

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