Patent ID: 9140224
Filing Date: 2015-09-22
Classification: F02M,F16K,H01F

Abstract:
1. An electromagnetic actuator for controlling fluid flow comprising: an actuator housing having a central longitudinal axis and a pole housing portion; a stator disposed within the pole housing portion having an inner pole member, a coil, and an outer pole member having a bore with a fluid-contacting surface for transmitting high pressure fluid therethrough, with the outer pole member being disposed radially between the pole housing portion and the inner pole member along a line extending perpendicularly from the longitudinal axis, wherein the coil is disposed around the inner pole member and arranged between the inner pole member and the outer pole member, wherein the outer pole member has an opening therein for receipt of the inner pole member and the coil, the opening having a generally oval-shaped cross-section, and wherein the inner pole member is arranged within the pole housing portion and has an inner pole bore therethrough, the inner pole bore being coaxial with the central longitudinal axis such that the inner pole bore is centrally aligned within the pole housing portion and the actuator housing, and the inner pole bore is concentric with the outer pole member about the central longitudinal axis; and an armature moveable under the influence of a magnetic field generated by the stator and coil and operable to affect transmission of fluid through the bore of the outer pole member and in contact with the fluid-contacting surface.