Abstract: A fuel injector includes a seat, a movable member cooperating with the seat, and an orifice plate. The orifice plate includes a member and an orifice penetrating the member. The member includes first and second generally parallel surfaces. The first surface generally confronts the valve seat, and the second surface faces opposite the first surface. The orifice is defined by a wall that couples the first and second surfaces. The wall includes a first portion that extends from the first surface and a second portion extending between the first portion and the second surface. The first portion of the wall extends at a first oblique angle with respect to the first surface, and the first oblique angle varies so as to define an asymmetrical chamfer. The second portion of the wall defines a cylinder extending along an axis at a second oblique angle with respect to the second surface.

Abstract: A fuel injector includes an orifice disc. The orifice disc includes a peripheral portion, a central portion, and an orifice. The peripheral portion is with respect to a longitudinal axis and extends parallel to a base plane. The peripheral portion bounds the central portion. The central portion includes a facet that extends parallel to a plane that is oblique with respect to the base plane. The orifice penetrates the facet and extends along an orifice axis that is oblique with resect to the plane. As such, the orientation of the orifice with respect to the longitudinal axis is defined by a combination of (1) a first relationship of the plane with respect to the base plane, and (2) a second relationship of the orifice axis with respect to the plane. A method of forming a multi-facetted dimple for the orifice disc is also described.

Abstract: A fuel injector includes an orifice disc. The orifice disc includes an outer portion, a central portion, and an orifice. The outer portion is with respect to a longitudinal axis and extends parallel to a generally planar base surface. The outer portion bounds the central portion. The central portion includes a facet that extends parallel to a plane that is oblique with respect to the generally planar base surface. The orifice penetrates the facet and extends along an orifice axis that is oblique with respect to the plane. As such, the orientation of the orifice with respect to the longitudinal axis is defined by a combination of (1) a first relationship of the plane with respect to the generally planar base surface, and (2) a second relationship of the orifice axis with respect to the plane. A method of forming a multi-facetted dimple for the orifice disc is also described.

Abstract: The pyrotechnic animal dispersal device includes an aerodynamic stabilizer for attachment to a pyrotechnic rocket cartridge and a connector sleeve for joining an explosive cartridge to the rocket cartridge. The connector sleeve has an annular disc disposed therein so that slow burning fuel from the rocket cartridge can pass through the disc and detonate the explosive cartridge when the rocket cartridge nears the end of its flight, thereby extending the range of the explosive cartridge. The cartridges are of the pyrotechnic variety launched from a handheld launcher.

Abstract: A method and assembly for punching a hole in material provided. A magnetostrictive device 14 includes a coil 26, a magnetostrictive member 22, and a punch 28 operatively associated with the magnetostrictive member 22. The magnetostrictive member 22 is constructed and arranged to lengthen, when exposed to a magnetic field created by the coil 26, thereby moving the punch 28. Material 12 to be punched is associated with the punch 28. The coil is energized to create a magnetic field and thus lengthen the magnetostrictive member 22 so that the punch 28 moves through the material 12, creating a hole in the material 12.

Abstract: An apparatus and method for piercing a metering disc from a workpiece of a fuel injector. The metering disc includes first and second surfaces that extend substantially parallel to a base plane. The first and second surfaces are spaced along a longitudinal axis that extends orthogonal with respect to the base plane. The apparatus includes a piercing tool that extends along a tool axis, a planar coordinate positioning mechanism, and a spherical coordinate positioning mechanism. The piercing tool is adapted to penetrate the workpiece. The planar coordinate positioning mechanism displaces parallel to the longitudinal axis of the piercing tool relative to the workpiece. And the spherical coordinate positioning mechanism pivots about the tool axis relative at least one of three axes.

Abstract: A fuel injector includes a seat, a movable member cooperating with the seat, and an orifice plate. The orifice disc includes a member having first and second generally parallel surfaces, and an orifice extending through the member between first and second generally planar surfaces of the member. The orifice is defined by a wall that couples the first and second surfaces. The wall includes first and second wall portions. The first wall portion is spaced from the first surface and extends substantially perpendicular to the first and second generally planar surfaces and about the longitudinal axis to define a transition perimeter. The second wall portion couples the first wall portion to the first surface to define a inlet perimeter on the first surface.

Abstract: A fuel injector includes an orifice disc. The orifice disc includes a peripheral portion, a central portion, and an orifice. The peripheral portion is with respect to a longitudinal axis and extends parallel to a base plane. The peripheral portion bounds the central portion. The central portion includes a facet that extends parallel to a plane that is oblique with respect to the base plane. The orifice penetrates the facet and extends along an orifice axis that is oblique with respect to the plane. As such, the orientation of the orifice with respect to the longitudinal axis is defined by a combination of (1) a first relationship of the plane with respect to the base plane, and (2) a second relationship of the orifice axis with respect to the plane. A method of forming a multi-facetted dimple for the orifice disc is also described.

Abstract: An asymmetrical tool is provided to form an asymmetric orifice for an orifice disc. The asymmetric orifice is initially formed with a wall portion extending generally perpendicular to first and second generally parallel surfaces of the orifice disc. The wall of the orifice is deformed by the tool into an inlet portion contiguous to the first surface and a transition portion spaced from the first surface. The transition portion of the wall extends substantially perpendicular to the first and second generally planar surfaces. The inlet portion of the wall extends at a first oblique angle with respect to the first surface, and the first oblique angle varying with respect to the longitudinal axis. A method of forming the orifice with the tool is described.

Abstract: A method of using a tool for punching orifice that has wall surfaces extending at an angle relative to a generally planar surface of a workpiece. The method includes sequentially forming two spaced apart impressions formed in the workpiece between first and second generally planar surfaces spaced apart along a longitudinal axis of the workpiece. The two spaced apart impressions form a first orifice wall surface disposed at an obtuse angle with respect to the generally planar surface facing the tool and a second orifice wall surface disposed at an acute angle with respect to the generally planar surface, and coincidental with the punching process, a retention arrangement that secures the workpiece during the forming of the orifice.

Abstract: A punch tool for punching orifice that has wall surfaces extending at an angle relative to a generally planar surface of a workpiece. The punch tool of the preferred embodiments is provided with configurations that, at the very least, increase the life of the tool, reduce damages to the workpiece during punching in the formation of the angled orifices.

Abstract: A fuel injector includes a seat, a movable member cooperating with the seat, and an orifice plate. The orifice plate includes a member and an orifice penetrating the member. The member includes first and second generally parallel surfaces. The first surface generally confronts the valve seat, and the second surface faces opposite the first surface. The orifice is defined by a wall that couples the first and second surfaces. The wall includes a first portion that extends from the first surface and a second portion extending between the first portion and the second surface. The first portion of the wall extends at a first oblique angle with respect to the first surface, and the first oblique angle varies so as to define an asymmetrical chamfer. The second portion of the wall defines a cylinder extending along an axis at a second oblique angle with respect to the second surface.

Abstract: A fuel injector includes a metering orifice disc. The metering orifice disc includes a peripheral portion, a central portion, and an orifice. The peripheral portion is with respect to a longitudinal axis and extends parallel to a base plane. The peripheral portion bounds the central portion. The central portion includes a facet that extends parallel to a plane that is oblique with respect to the base plane. The orifice penetrates the facet and extends along an orifice axis that is oblique with respect to the plane. As such, the orientation of the orifice with respect to the longitudinal axis is defined by a combination of (1) a first relationship of the plane with respect to the base plane, and (2) a second relationship of the orifice axis with respect to the plane. A method of forming a multi-facetted dimple for the metering orifice disc is also described.