Patent ID: 6541881
Filing Date: 2003-04-01
Classification: F02D

Abstract:
A motorized throttle valve assembly comprising:(a) a throttle body defining an engine air inlet passage therethrough; (b) shaft means extending transversely through said inlet passage and joumalled for rotational movement on said body said shaft means including driving portions thereof extending externally of said body; (c) a valve member disposed in said inlet passage and rotationally moveable with said shaft means; (d) a rotor including material having a relatively high magnetic permeability disposed on said shaft means in driving arrangement with said shaft means, and including a plurality of magnetized pole segments thereon; (e) a motor housing having a stator of relatively high magnetic permeability therein, said stator having a coil of conductive material wound thereon and defining a pair of axial pole segments; (f) a mounting member having said motor housing attached thereto retaining said rotor therein with said shaft means received through said motor housing, said rotor pole segments each defining an axial air gap with said stator pole segments; (g) means for attaching said mounting member to said body; and, (h) connector terminal means connected to said coils and adapted for electrical connection thereto externally wherein said throttle body includes a hollow with said motor housing member received in said hollow and said mounting member serves as a closure for said hollow.