Abstract: The invention relates to a valve, in particular an expansion valve, for controlling a fluid flow, having a valve housing with an accommodation space and at least two fluid ducts connected to the accommodation space, having an opening which runs perpendicularly to the fluid ducts and opens into the accommodation space, wherein a sealing ring holder with a valve means is situated in the accommodation space, wherein the sealing ring holder with the valve means held therein can be inserted into the accommodation space through the opening, and wherein the valve means is positioned rotatably in the sealing ring holder by means of at least two sealing rings. The invention also relates to a sealing ring holder.

Abstract: The invention relates to a valve, in particular an expansion valve, for controlling a fluid flow, having a valve housing with an accommodation space and at least two fluid ducts connected to the accommodation space, having an opening which runs perpendicularly to the fluid ducts and opens into the accommodation space, wherein a sealing ring holder with a valve means is situated in the accommodation space, wherein the sealing ring holder with the valve means held therein can be inserted into the accommodation space through the opening, and wherein the valve means is positioned rotatably in the sealing ring holder by means of at least two sealing rings. The invention also relates to a sealing ring holder.

Abstract: The invention relates to an expansion valve (10), for controlling a fluid flow, having a valve means housing (12) and at least one valve means (16), which is movably arranged in a valve means housing (12), and an actuator housing (14), in which the electrical drive of the expansion valve (10) is arranged, wherein the valve means housing (12) is formed substantially at least in part of a metal, in particular of aluminum, and wherein the actuator housing (14) is formed substantially at least in part of plastic and wherein the actuator housing (14) is secured on the valve means housing (12) by means of at least one connection element (40). According to the invention, the connection element (40) is formed at least in part as a latching element and/or clip element.

Abstract: The invention relates to a thrust washer (28) for an electric machine (10, 12) intended to be arranged on a shaft (16) between a bearing (18) and a rotor (14), preferably a rotating electrical contact element (24) impacted by brushes (38), and/or a disk pack (36) of the rotor (14). The thrust washer (28) is provided with an area for sealing having two end faces (32, 34). On each end face (32, 34), at least one radial abutment section (50, 52) for the bearing (18), or the rotor (14), is provided. The thrust washer (28) according to the invention is characterized in that it is made of at least one hard component (54) and one soft component (56), wherein the part of the radial abutment section (50, 52) abutting the rotor (14) and/or the bearing (18) is formed by the soft component (56).

Abstract: The invention relates to a thrust washer (28) for an electric machine (10, 12) intended to be arranged on a shaft (16) between a bearing (18) and a rotor (14), preferably a rotating electrical contact element (24) impacted by brushes (38), and/or a disk pack (36) of the rotor (14). The thrust washer (28) is provided with an area for sealing having two end faces (32, 34). On each end face (32, 34), at least one radial abutment section (50, 52) for the bearing (18), or the rotor (14), is provided. The thrust washer (28) according to the invention is characterized in that it is made of at least one hard component (54) and one soft component (56), wherein the part of the radial abutment section (50, 52) abutting the rotor (14) and/or the bearing (18) is formed by the soft component (56).

Abstract: A commutator machine and a sliding body holder for electrically contacting a rotor has at least one sliding body and a leaf spring which centrally supports the sliding body and is fixed on its end to a carrier which is stationary relative to the rotor and which generates a radially oriented contact-pressure force at the sliding body for pressing the sliding body against the rotor. To attain good noise decoupling of the sliding body with regard to the carrier, the geometry of the leaf spring is designed such that the sliding body and the carrier are largely vibrationally decoupled from one another.

Abstract: A commutator for an electrical machine, which has a plurality of laminations that have contact faces and are separated from one another by slots in which, in the laminations, at least one groove is provided in the contact face, which groove extends essentially in the longitudinal direction of the respective lamination. As a result, the frequency with which the brushes are excited by the commutator can be increased, which has a favorable effect on noise.

Abstract: The invention relates to a multipole commutator motor (14) having at least four stator poles (16-19) and having armature coils (31-42) that work together with these stator poles and that, for the supply of power, are each connected electrically with two commutator bars (1-12) of a commutator (22), and whose number is greater than the number of the stator poles (16-19), it being provided that, in order to reduce the number of brushes (20, 21; 23, 24) contacting the commutator (22), armature coils (31-42), that form armature poles having identical magnetic orientation are connected in parallel through electrical bridge conductors (43-48) at the armature. For the commutator motor (14), it is proposed that the bridge conductors (43-48) be routed at least partially via armature slots (71-82).

Abstract: The invention concerns a commutator (22; 22a; 22b) for a multi-pole commutator motor (14) having at least four stator poles (16-19) and armature coils (31-42) interacting with them that are electrically interconnected with two commutator bars (1-12) each of the commutator (22; 22a; 22b) to supply current, and the number of which said armature coils is greater than the number of stator poles (16-19), whereby, in order to reduce the number of brushes (20, 21; 23, 24) contacted by the commutator (22; 22a; 22b), armature coils (31-42) forming armature poles having an identical magnetic polarity are connected in parallel by armature-end, electrical bridge conductors (43-48). With regard for the commutator (22; 22a; 22b), it is proposed that the bridge conductors (43-48) are a component of the commutator (22; 22a; 22b). The invention further concerns a multi-pole commutator motor (14) having a commutator (22; 22a; 22b) of this type.

Abstract: In a device for connecting two parts for the sake of high-precision fixation of the two parts in a defined positioning to one another, two connection pairs are provided, each comprising one wedgelike tab, assigned to the first part and extending in the connection direction, and one wedge-shaped notch, assigned to the other part and extending in the connection direction, with a course of the wedge that is contrary to that to the tab, and into which notch the tab can be pressed, causing deformation. The two connection pairs are oriented such that the press-in directions of the tabs into the assigned notches are opposite one another in terms of the connection direction.

Abstract: An electric motor having a housing, having an armature, having an armature shaft supported in two slide bearings, where one of the slide bearings axially displaceably receives the armature shaft and the other slide bearing limits an axial displaceability of the armature shaft by the disposition of a stop disk between a slide bearing bush of the slide bearing and the armature, by the disposition of an axial stop, in the form of a stop ring pressed over one end of the armature shaft. The armature shaft end protrudes out of the housing and is intended for carrying and driving a fan wheel that has a hub which is located adjacent the particular a slide bearing that receives only radial forces.

Abstract: A pendulum sliding bearing has a sliding bearing bushing provided for receiving a rotatable elements, such as shafts, axles and the like, the sliding bearing bushing having calotte portions at end sides, a bearing body formed of a metal plate and having a ring-shaped abutment surface for one of the calotte portions of the sliding bearing bushing, a wall extending substantially outwardly of the abutment surface, and a casing adjoining the wall and provided for insertion in a cylindrical opening, a spring disk having a central opening and an adjoining at least one second abutment surface for the second calotte portion of the sliding bearing bushing and having a radially outer edge fixed on the bearing body, the casing being subdivided into casing fields which extend substantially parallel to a longitudinal axial of the bearing body so that gaps are available between the casing fields, a plurality of supporting fingers extending at least over a width of the gaps from the wall in a direction opposite to a course