Patent Number: 6,332,451

Title: Rotary valve actuator arrangement

Abstract: A rotary valve actuator arrangement including a rotary valve and an electromagnetic actuator actuating the rotary valve. The rotary valve includes a valve shaft rotatable about an axis and a valve body disposed on the valve shaft for unitary rotation therewith. The electromagnetic actuator includes two stator cores, two coils wound on the stator cores, and a rotor rotatable about the axis and including two projecting portions opposed to the stator cores. Mutually opposed surfaces of the stator cores and the projecting portions define a continuously variable area forming a magnetic path when the coil is energized.

Inventors: Sato; Hisaaki (Gunma, JP), Kumagai; Masato (Saitama, JP), Araki; Tomoaki (Gunma, JP), Kai; Keiichi (Gunma, JP)

Assignee: Unisia Jecs Corporation

International Classification: F16K 31/04 (20060101); F16K 1/22 (20060101); F02D 009/02 ()

Expiration Date: 12/25/2018