Abstract:
Die Erfindung betrifft eine Kraftstoffeinspritzdosiereinrichtung (7) für ein Kraftfahrzeug, die einen Grundkörper (10) mit wenigstens einem Durchgangsloch aufweist, wobei der Grundkörper (10) auf seiner Innenseite (9) einen Ventilsitz (8) ausbildet, der zum das Durchgangsloch verschließenden und öffnenden Zusammenwirken mit einem Ventilkörper (5) vorgesehen ist, wobei die Innenseite (9) des Grundkörpers (10) elektrochemisch bearbeitet ist. Sie betrifft auch ein Werkzeug (22), ein Fertigungsverfahren und eine Kraftstoffeinspritzdüse (1).
Abstract:
Die vorliegende Erfindung betrifft ein Magnetventil zum Steuern von Fluiden, umfassend ein Schließelement (2), welches an einem Ventilsitz (3) wenigstens eine Auslassöffnung freigibt und verschließt, einen Magnetkreis (5) mit einem Anker (6), einem Innenpol (7) und einem Magnetrückschluss (8), und eine Spule (9), wobei der Anker (6) mit dem Schließelement (2) verbunden ist, wobei der Magnetkreis (5) ein unmagnetisches Trennelement (10) zur Unterbrechung des Magnetkreises (5) und eine magnetische Drosselvorrichtung (13) umfasst, wobei die magnetische Drosselvorrichtung (13) den Magnetkreis (5) am unmagnetischen Trennelement (10) schließt, und wobei die magnetische Drosselvorrichtung (13) ein separates Einzelbauteil ist, welches mittels einer formschlüssigen und/oder kraftschlüssigen Verbindung fixiert ist.
Abstract:
A fuel injector (100) is shown and described. The fuel injector (100) includes an inlet (100A), outlet (100B), seat (128 or 1000), closure member (112B), and a metering orifice disc (10, 200, 300, 300', 400, 500, 600, 700, 900). The metering orifice disc (10, 200, 300, 300', 400, 500, 600, 700, 900) is disposed between the seat (128 or 1000) and the outlet (100B). The metering orifice disc (10, 200, 300, 300', 400, 500, 600, 700, 900) includes a plurality of metering orifices (12 and 13) disposed about the longitudinal axis and a flow channel (14A, 14B, 15A, 15B) to each metering orifice disc (10, 200, 300, 300', 400, 500, 600, 700, 900) so that, when the inlet (100A) of the fuel injector (100) is provided with a pressurized fluid over a range of pressure from 300 kiloPascals to 400 kiloPascals, the metering orifice disc (10, 200, 300, 300', 400, 500, 600, 700, 900) provides an atomized fluid having a Sauter-Mean-Diameter of less than 70 microns proximate the outlet (100B) of the fuel injector (100). Various fuel injectors and disc configurations are disclosed. Various methods of atomizing and spray targeting are also provided.
Abstract:
An ultrasonically operated valve (10) has a source of ultrasonic energy for excitation of a pressurized liquid. The vibration of the ultrasonic horn (60) imparts a pulsing of the pressure of the liquid within the valve (10). Selection of a sealing mechanism that responds at a different natural frequency than that of the valve body (20) causes the sealing mechanism (28) to unseat and therefore to enable liquid flow. The sealing mechanism (28) will stay unseated as long as the source is imparting energy to the system and therefore inducing pressure pulses in the liquid thus keeping the sealing mechanism (28) away from the valve seat (30).
Abstract:
A fuel injector and various methods relating to the assembly of the fuel injector. The fuel injector includes a power group subassembly and a valve group subassembly having a respectively connected first and second connector portions. The power group subassembly includes an electromagnetic coil, a housing, at least one terminal, and at least one overmold formed over the coil and housing. The valve group subassembly insertable within the overmold includes a tube assembly having an inlet tube and a filter assembly and sealing ring proximate the inlet tube. A pole piece couples the inlet tube to one end of a non-magnetic shell having a valve body coupled to the opposite end. An axially displaceable armature assembly confronts the pole piece and is adjustably biased by a member and an adjusting tube toward engagement with a seat assembly. The seat assembly includes a flow portion and a securement portion having respective first and second axial lengths at least equal to one another
Abstract:
A fuel injector and various methods relating to the assembly of the fuel injector. The fuel injector includes a power group subassembly and a valve group subassembly having a respectively connected first and second connector portions. The power group subassembly includes an electromagnetic coil, a housing, at least one terminal, and at least one overmold formed over the coil and housing. The valve group subassembly insertable within the overmold includes a tube assembly having an inlet tube and a filter assembly. A pole piece couples the inlet tube to one end of a non-magnetic shell having a valve body coupled to the opposite end. An axially displaceable armature assembly confronts the pole piece and is adjustably biased by a member engaged with an adjusting tube with a filter assembly mounted thereon. The seat assembly includes a flow portion and a securement portion having respective first and second axial lengths at least equal to one another.
Abstract:
A fuel injector and various methods relating to the assembly of the fuel injector (100). The fuel injector includes a power group subassembly (400) and a valve group subassembly (200) which are independently testable, having a respectively, connected first and second connecter portions. The power group subassembly (400) includes an electromagnetic coil (402), a housing (420), at least one terminal (406), and at least one overmold (430) formed over the coil (402) and housing (420). The valve group subassembly (200) insertable within the overmold (430) includes a tube assembly having an inlet tube (210) and a filter assembly (380). A pole piece (270) couples the inlet tube (210) to one end of a non-magnetic shell (230) having a valve body coupled to the opposite end. An axially displaceable armature assembly confronts the pole piece (270) and is adjustably biased by a member and adjusting tube (375) toward engagement with a seat assembly (330). A lift setting device sets the axial displacement of the armature assembly (300). The seat assembly (330) includes a flow portion and a securement portion (340) having respective first and second axial lengths at least equal to one another.