Abstract: An electric motor for a motor vehicle, in particular for a braking or steering system, comprising a motor housing with a housing cover, and a stator inserted in the motor housing comprising a ring-shaped switching unit, which is arranged on a front side facing the housing cover, wherein at least one spacer element axially protruding in the direction of the housing cover is arranged on the switching unit, wherein the spacer element is designed to be elastic at least in the radial direction and/or the tangential direction.

Abstract: An electric motor contains a motor shaft which is arranged in a motor housing. The motor shaft is rotatably mounted about a rotational axis in at least one rolling or ball bearing, which sits in a bearing receiving area and contains an outer ring and an inner ring fixed to the motor shaft. The outer ring of the rolling bearing is pretensioned by a spring disc which sits in the bearing receiving area and has a number of wave trains with alternatingly axially projecting half wave trains, and the spring disc has a number of centering elements on the inner circumference. The centering elements rest against the motor shaft when the spring disc is untensioned and is arranged at a distance to the motor shaft when the spring disc is tensioned.

Abstract: A stator for an electric motor has a stator main body with stator teeth arranged in the form of a star and a stator yoke. The stator main body is formed with a number of axial grooves on an outer circumference. Spring elements are inserted into the axial grooves and the spring elements circumferentially protrude in the radial direction from the stator main body. The spring elements are introduced with a radial form-fit.

Abstract: An electric motor has a stator with a cylindrical stator main body with radially inwardly directed stator teeth and with a number of first axial slots formed on the circumferential side in the stator main body, and a motor housing for accommodating the stator. A number of second axial slots are provided on a housing inner wall and are arranged in alignment with the first axial slots. A spring element is provided, which has a spring main body which is inserted in a radially form-fitting manner into one of the first axial slots. A spring arm protrudes out of the spring main body and projects radially on the circumference of the stator main body. The spring arm has a stiffening contour along an arm longitudinal direction, which increases a tangential stiffness of the spring arm.

Abstract: A stator of an electric motor has a number of radially directed stator teeth, onto each of which an insulating coil carrier for a coil of a multiphase rotating field winding is or can be placed. The stator teeth are connected to one another on the outer circumference on a yoke side, forming stator grooves. On the inner circumference, on a pole shoe side, a groove gap is respectively formed between adjacent stator teeth. Stiffening is provided on the inner circumference on the pole shoe side of the stator teeth, in the form of a stiffening element that projects into the or each groove gap.

Abstract: A stator for an electric motor has a cylindrical stator main body with radially inwardly directed stator teeth and with a number of axial slots over the circumference. Each of a number of spring elements has a spring main body that is or can be radially interlockingly inserted into a corresponding axial slot and also spring arms extending or bent out of the spring body and projecting circumferentially radially beyond the stator main body. The number of spring arms increases as an axial length of the stator main body increases, and/or a ratio between a spring width of the respective spring arm and a material thickness of the spring element or the spring main body lies between 10 and 15, preferably between 11 and 14, or further preferably at 13±0.5.

Abstract: An electric motor for a motor vehicle, in particular for a braking or steering system, comprising a motor housing with a housing cover, and a stator inserted in the motor housing comprising a ring-shaped switching unit, which is arranged on a front side facing the housing cover, wherein at least one spacer element axially protruding in the direction of the housing cover is arranged on the switching unit, wherein the spacer element is designed to be elastic at least in the radial direction and/or the tangential direction.

Abstract: An electric motor contains a motor shaft which is arranged in a motor housing. The motor shaft is rotatably mounted about a rotational axis in at least one rolling or ball bearing, which sits in a bearing receiving area and contains an outer ring and an inner ring fixed to the motor shaft. The outer ring of the rolling bearing is pretensioned by a spring disc which sits in the bearing receiving area and has a number of wave trains with alternatingly axially projecting half wave trains, and the spring disc has a number of centering elements on the inner circumference. The centering elements rest against the motor shaft when the spring disc is untensioned and is arranged at a distance to the motor shaft when the spring disc is tensioned.

Abstract: A stator for an electric motor has a stator main body with stator teeth arranged in the form of a star and a stator yoke. The stator main body is formed with a number of axial grooves on an outer circumference. Spring elements are inserted into the axial grooves and the spring elements circumferentially protrude in the radial direction from the stator main body. The spring elements are introduced with a radial form-fit.

Abstract: A stator of an electric motor has a number of radially directed stator teeth, onto each of which an insulating coil carrier for a coil of a multiphase rotating field winding is or can be placed. The stator teeth are connected to one another on the outer circumference on a yoke side, forming stator grooves. On the inner circumference, on a pole shoe side, a groove gap is respectively formed between adjacent stator teeth. Stiffening is provided on the inner circumference on the pole shoe side of the stator teeth, in the form of a stiffening element that projects into the or each groove gap.

Abstract: A belt pulley decoupler for a motor vehicle drive train, having a hub, a traction pulley having a traction-means receiving contour and being accommodated to rotate about an axis of rotation relative to the hub. The decoupler may include a plurality of bow springs supporting the traction pulley relative to the hub in a direction of rotation, at least one first bow spring being arranged offset in an axial direction and/or a radial direction of the axis of rotation to a second bow spring acting parallel to the first bow spring, and a vibration damping device conjointly connected by means of a carrier to the hub and accommodated on a sleeve-like receiving region of the carrier. The receiving region of the carrier projecting in the axial direction, at least partially, beyond the torque transfer region of the traction pulley.

Abstract: A method for depositing a CdTe layer on a substrate in a vacuum chamber by means of physical gas phase deposition is provided. The substrate is heated to a coating temperature before the deposition process and then guided past a vessel in which CdTe is converted into a vapour state, a gaseous component with an increased pressure (compared to the vacuum in the vacuum chamber) flowing through at least one inlet, against the substrate surface to be coated, such that the gaseous component is adsorbed on the substrate surface to be coated before the substrate is guided past the at least one vessel.

Abstract: An electric motor including a rotor configured to rotate about a rotational axis and a stator extending along the rotational axis. The stator may include a stator yoke, a first tooth, and a second tooth, each provided with a shaft extending away from the stator yolk towards the rotational axis to a base. Adjacent sides of the of the first tooth and the base of the second tooth may form a groove slot. A reinforcement element may be inserted into the groove slot.

Abstract: A method for producing a CdTe solar cell is provided, wherein at least the following layers are deposited on a glass substrate within a vacuum chamber: a TCO layer acting as a frontal contact; at least one CdTe layer; a thin layer of a chlorine-containing compound, and an electrically conductive layer acting as a return contact. Here, a maximally 20 nm thick passivation layer made from CdS, in which chemically non-bound oxygen is embedded, is deposited on the TCO layer prior to deposition of at least one CdTe-layer.

Abstract: A method for producing a CdTe solar cell is provided, wherein at least the following layers are deposited on a glass substrate within a vacuum chamber: a TCO layer acting as a frontal contact; at least one CdTe layer; a thin layer of a chlorine-containing compound, and an electrically conductive layer acting as a return contact. Here, a maximally 20 nm thick passivation layer made from CdS, in which chemically non-bound oxygen is embedded, is deposited on the TCO layer prior to deposition of at least one CdTe-layer.

Abstract: An electric motor including a rotor configured to rotate about a rotational axis and a stator extending along the rotational axis. The stator may include a stator yoke, a first tooth, and a second tooth, each provided with a shaft extending away from the stator yolk towards the rotational axis to a base. Adjacent sides of the of the first tooth and the base of the second tooth may form a groove slot. A reinforcement element may be inserted into the groove slot.

Abstract: A method for depositing a CdTe layer on a substrate in a vacuum chamber by means of physical gas phase deposition is provided. The substrate is heated to a coating temperature before the deposition process and then guided past a vessel in which CdTe is converted into a vapour state, a gaseous component with an increased pressure (compared to the vacuum in the vacuum chamber) flowing through at least one inlet, against the substrate surface to be coated, such that the gaseous component is adsorbed on the substrate surface to be coated before the substrate is guided past the at least one vessel.