Abstract: A shaft bearing with a shaft seal, in particular for water pumps in motor vehicles, arranges a special radial shaft seal inside the outer bearing ring. The seal is made up of a stable rear wall arranged at a certain distance from the water-side of the shaft seal and fixed in the outer bearing ring, a secondary lip seal adjacent to a water-side of the rear wall, a support body solidly fixed in position in the outer bearing ring and adjacent to the secondary lip seal and a primary lip seal fixed in position adjacent to the support body on the water side, i.e. on the pressure side and opposite to the support body as well as opposite the outer bearing ring. Leakage openings are also arranged in the outer bearing ring, between the water-sided shaft seal of the shaft bearing and the rear wall which is arranged at a distance therefrom.

Abstract: A shaft bearing with a shaft seal, in particular for water pumps in motor vehicles, arranges a special radial shaft seal inside the outer bearing ring. The seal is made up of a stable rear wall arranged at a certain distance from the water-side of the shaft seal and fixed in the outer bearing ring, a secondary lip seal adjacent to a water-side of the rear wall, a support body solidly fixed in position in the outer bearing ring and adjacent to the secondary lip seal and a primary lip seal fixed in position adjacent to the support body on the water side, i.e. on the pressure side and opposite to the support body as well as opposite the outer bearing ring. Leakage openings are also arranged in the outer bearing ring, between the water-sided shaft seal of the shaft bearing and the rear wall which is arranged at a distance therefrom.

Abstract: The assembly includes a pump bearing ring that is fitted with at least one bearing groove and is disposed in/on a bearing seat of a plastic coolant pump housing with an axial bearing collar, and several positioning webs which are located on the bearing seat. Separate adhesive grooves are placed between the positioning webs and the bearing collar. The adhesive grooves are provided with liquid-tight walls in four of the axial directions, an opening in the direction of the pump bearing ring, and slot-shaped adhesive pockets in the area of the outer edge of the pump bearing. A method for mounting a pump bearing in/on a plastic coolant pump housing includes steps of spreading adhesive on a bearing ring, pressing the bearing ring into/onto the bearing seat, and inductively heating the pump bearing in the plastic coolant pump housing.

Abstract: A blade wheel consisting of sheet metal for use in motor vehicle refrigerant pumps has blades that are cut out of a disk and pitched and base disk segments that lie adjacent to the blades and remain between the latter. The blade wheel is formed by at least two different blade wheel elements which are provided with cut out, pitched blades, are interconnected in a fixed manner and are arranged so that their respective base disk segments are offset in relation to one another, forming a gap therebetween, the elements thus forming a common bottom disk. A hub sleeve is provided in the center of one of these blade wheel elements (the hub disk), and the center of the other blade wheel element or elements (the bore disk or disks) is provided with a hub sleeve receiving bore, which can be pushed onto the casing of the hub sleeve.

Abstract: The invention relates to an assembly and a method for mounting a pump bearing in/on plastic coolant pump housings. The aim of the invention is to create an assembly that is easy to produce and mount as well as an inexpensive and simple method for arranging pump bearings in/on plastic coolant pump housings, the assembly and method making it possible to temper the plastic housing and use bearings featuring little clearance with all resulting advantages, such as an extended service life, less noise, stress relief on the shaft sealing ring or the rotating mechanical seal, and others. The assembly comprises a pump bearing (3) ring (2) that is fitted with at least one bearing groove (1) and is disposed in/on a bearing seat (4) of a plastic coolant pump housing (5) with an axial bearing collar (6), and several positioning webs (7) which are located on the bearing seat (4).

Abstract: The invention relates to a blade wheel consisting of sheet metal for use in motor vehicle refrigerant pumps. The aim of the invention is to develop a novel blade wheel consisting of sheet metal for use in motor vehicle refrigerant pumps which, aside from a plurality of blades, also has a high blade height, thus ensuring a high throughput. Moreover, it also has smooth running properties without re-machining and, furthermore, also without re-machining, ensures an optimum sealing gap with respect to the housing. At the same time, it can always be produced simply and cost-effectively with an open construction (without an end plate) as well as with a closed construction (with an end plate). In addition, it is characterized by a high pumping efficiency. The inventive blade wheel (1) consisting of sheet metal for use in motor vehicle refrigerant pumps has blades (3) that are cut out of a disk and pitched and base disk segments (4) that lie adjacent to the blades (3) and remain between the latter (3).

Abstract: A bearing arrangement for pump bearings mounted in plastic housings, in particular for coolant pumps, comprises a radial housing groove that is provided with an inlet bore, the groove being arranged in the coolant pump housing. A bearing groove located opposite the housing groove in the final mounted condition is provided on the bearing ring arranged in the bearing seat. This arrangement can be manufactured and mounted in a simple manner, permits tempering of the plastic housing, always ensures a high degree of efficiency of the pump with minimal manufacturing and installation expenditure, and permits the use of bearings as pump bearings with minor play of the bearing with a longer service life, low development of noise, and relief of the shaft sealing gasket, and many other benefits.

Abstract: A bearing arrangement for pump bearings mounted in plastic housings, in particular for coolant pumps, comprises a radial housing groove that is provided with an inlet bore, the groove being arranged in the coolant pump housing. A bearing groove located opposite the housing groove in the final mounted condition is provided on the bearing ring arranged in the bearing seat. This arrangement can be manufactured and mounted in a simple manner, permits tempering of the plastic housing, always ensures a high degree of efficiency of the pump with minimal manufacturing and installation expenditure, and permits the use of bearings as pump bearings with minor play of the bearing with a longer service life, low development of noise, and relief of the shaft sealing gasket, and many other benefits.

Abstract: An electrically powered coolant pump particularly suited for an internal combustion engine has a pump housing having an elongate shape which encloses a pump wheel on the inlet side and subsequently downstream therefrom encloses an electric motor. An annular flow passage for the coolant is formed between the pump housing and the outside of the electric motor. The electric motor is encapsulated against the coolant, and the structural component of electric motor and pump wheel is retained in the axial range of the electric motor with at least one web in the pump housing through which connections for driving the electric motor are routed. The electric motor is cooled by the coolant flowing by, and may therefore be operated at very high rotational speeds, so that a small structural size and a low weight may be realized. Widely varying installation locations for the coolant pump are therefore possible.

Abstract: The invention furnishes an electrically powered coolant pump (1) particularly suited for an internal combustion engine. It comprises a pump housing (2) having an elongate shape which encloses a pump wheel (31) on the inlet side and subsequently downstream therefrom encloses an electric motor (4), with an annular flow passage for the coolant being formed between the pump housing (2) and the outside of the electric motor (4). The electric motor (4) is encapsulated against the coolant, and the structural component of electric motor and pump wheel is retained in the axial range of the electric motor (4) with the aid of at least one web in the pump housing (2) through which the connections (6) for driving the electric motor (4) are routed.