Patent ID: 11862393
Assignee: MAHLE INTERNATIONAL GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F  Y | IPC F  H

Claim 15:
16. A valve, comprising:
an actuation device,
the actuation device including a coil assembly and an actuation member that is driveable via the coil assembly to perform a linear or rotary operating movement, wherein the coil assembly includes:
a coil arrangement including at least one electrically energizable coil, a coil ring carrier receiving the coil arrangement and a flux conducting device for conducting magnetic field lines of a magnetic field provided via the coil arrangement,
the flux conducting device including a one-piece ferromagnetic pole ring that includes a ring base plate and a plurality of pole ring outer teeth distributed in a circumferential direction round about a longitudinal centre axis of the one-piece ferromagnetic pole ring and arranged on an outer edge of the ring base plate oriented with respect to the longitudinal centre axis radially to an outside, the plurality of pole ring outer teeth angularly bent over on fold-over outer edge regions of the ring base plate,
the flux conducting device further including a one-piece ferromagnetic counter-pole ringthat includes a counter-ring base plate and a plurality of counter-pole ring outer teeth distributed in a counter-circumferential direction round about a counter-longitudinal centre axis of the one-piece ferromagnetic counter-pole ring, the plurality of counter-pole ring outer teeth arranged on a counter-outer edge of the counter-ring base plate oriented with respect to the counter-longitudinal centre axis radially to the outside and angularly bent over on counter-fold-over outer edge regions of the counter-ring base plate,
wherein in an assembled state of the coil assembly the one-piece ferromagnetic pole ring and the one-piece ferromagnetic counter-pole ring are oriented coaxially to one another and to a main longitudinal centre axis of the coil assembly and are arranged longitudinally spaced apart in an axial direction of the main longitudinal centre axis, so that between the one-piece ferromagnetic pole ring and the one-piece ferromagnetic counter-pole ring a coil receiving ring space is provided, in which the coil arrangement and the coil ring carrier are arranged,
wherein the plurality of pole ring outer teeth and the plurality of counter-pole ring outer teeth engage into one another in the assembled state, such that:
the plurality of pole ring outer teeth are arranged on the counter-ring base plate without contacting the counter-ring base plate in the axial direction and, elastically preloaded, are laterally clamped on to the counter-ring base plate in a radial direction oriented transversely relative to the main longitudinal centre axis, and
the plurality of counter-pole ring outer teeth are arranged on the ring base plate without contacting the ring base plate in a counter-axial direction that is opposite with respect to the axial direction and, elastically preloaded, are clamped on to the ring base plate in the radial direction.