Patent ID: 7104251
Filing Date: 2006-09-12
Classification: F01N,F02B,Y02T

Abstract:
1. A fluid swirling device for insertion in an intake system of an internal combustion engine, comprising: a housing open at both longitudinal ends thereof; an axle mounted within said housing; a set of rotatable vanes rotatably mounted on said axle and positioned in path of a fluid stream passing through said housing, each vane of said first set of vanes angled with respect to said axle so that intake fluid of the fluid stream impinging on said first set of vanes produces rotation of said first set of vanes relative to said axle and so that the intake fluid is deflected by said vane to impart a swirling motion to the fluid stream; a set of stationary vanes rigidly mounted on said axle so that said set of stationary vanes is stationary relative to said housing and relative to said set of rotatable vanes, said set of stationary vanes positioned in path of the fluid stream passing through said housing, said set of rotatable vanes and said set of stationary vanes positioned to allow passage of the fluid stream through said both longitudinal ends.