Mahle International Gmbh

Matthias Lindenberg

Florian Wetzel

Jeffrey Van Delden

Uli Haeussermann

Heiko Hensinger

Steffen Huebner

Uli HÄUSSERMANN

An electric stator for an expansion valve may include a first and a second coil body, a first electric connecting element, and a second electric connecting element. The first and second coil bodies may be substantially ring-shaped and extend along a circumferential direction. The first electric connecting element may protrude from the first coil body along an axial direction. The second electric connecting element may protrude from the second coil body. The first and second coil bodies may be arranged next to one another along the axial direction and may be fastened to one another via a common positioning aid.

Electric stator for an expansion valve

A valve body of an expansion valve for an air-conditioning system, a battery cooler, and/or an oil cooler of a motor vehicle may comprise a valve needle and a spring. The valve needle and the spring may be integrally provided as a single component.

Valve body for an expansion valve

An expansion valve includes a housing, a threaded bush, a valve body, and a permanent magnet body. The threaded bush is arranged in the housing and extends along an axial direction. The threaded bush includes an external thread. The valve body is partially adjustably received in the threaded bush along the axial direction. The permanent magnet body is of a pot-shaped design and arranged in the housing. The permanent magnet body extends the threaded bush along the axial direction such that the valve body is partially received in a valve body receptacle surrounded by the permanent magnet body. The permanent magnet body surrounds a radially outside of the threaded bush in a common transition portion. In the transition portion, the permanent magnet body is firmly connected to the threaded bush via a latching connection.

Expansion valve

An electric valve may include an electric machine having a rotor and a stator, a valve body drivingly connected to the rotor, a valve seat cooperating with the valve body, a housing in which the rotor and the stator are arranged, a split pot arranged in the housing and fluidically separating a dry region from a wet region in the housing, and a spring assembly including at least one spring. The rotor may be arranged in the split pot. The stator may surround the split pot radially on an outside in a circumferential direction. The split pot may protrude beyond an axially outer front side of the rotor. The spring assembly may be coupled to the housing and may rest on the front side spaced apart from the housing such that the spring assembly mechanically impinges on the stator radially and axially.

Electric valve

A coil assembly, e.g., for use a valve, is disclosed. 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 includes a one-piece ferromagnetic pole ring that includes a ring base plate and a plurality of pole ring outer teeth arranged on an outer edge of the ring base plate and angularly bent over on fold-over outer edge regions of the ring base plate. The flux conducting device further includes a one-piece ferromagnetic counter-pole ring that includes a counter-ring base plate and a plurality of counter-pole ring outer teeth arranged on a counter-outer edge of the counter-ring base plate and angularly bent over on counter-fold-over outer edge regions of the counter-ring base plate.

Coil assembly and its use in a valve

An electric valve, e.g., an electric expansion valve, for expanding a fluid, e.g., for a thermodynamic cycle, is disclosed. The electric valve includes an electric machine including a rotor and a stator interacting with the rotor during operation. A valve body is drive-connected with the rotor. The rotor, the stator, and the valve body are arranged in a valve housing. The valve housing, in an axial direction outside includes a bottom, and a connector projects axially from the bottom. At least one wing projects from the bottom, the at least one wing extending obliquely to the axial direction at least in portions and resiliently supports the bottom on the front side.

An expansion valve for an air conditioning system of a motor vehicle may include a housing, a sensor, a stepping motor or a BLDC motor, a valve seat, and a valve body. The stepping motor or the BLDC motor may include a rotor and a stator surrounding the rotor. The rotor may include a permanent magnet body connected non-rotatably therewith. A separating can may be provided that surrounds the rotor and separates a wet region on a rotor side from a dry region on a stator side. The sensor may be connected with the separating can via an adhesive layer formed as a heat-conductive layer.

A filter device may include a filter housing, a ring filter element arranged within the filter housing, a tubular dome engaging in an interior of the ring filter element, and a valve arranged in a clean channel. The ring filter element may include a lower end disc and a pin. The ring filter element may engage a first channel via the pin. The tubular dome may have a guiding contour which may interact with a guiding element of the ring filter element. The guiding contour may include an axial groove. The pin may be introducible into the first channel when the guiding element enters the axial groove. The guiding element and the valve may be structured and arranged such that the guiding element interacts with a valve body of the valve and transfers the valve body into an opening position when the guiding element is slid into the axial groove.

Growing community of inventors

Stuttgart, Germany

Matthias Lindenberg