Abstract: In known retaining devices for electric motors, rotationally flexible retaining elements on the order of leaf springs are provided between a receiving housing and the electric motor and serve to decouple noise of the electric motor. The novel retaining device for an electric motor includes retaining elements that extend axially between a receiving housing and the motor housing. These retaining elements enable low-frequency decoupling below the frequencies to be decoupled; on the occurrence of natural resonance when the electric motor is turned on and off or there are shocks from outside, the torsional motion of the retaining elements is limited by stop elements. The retaining device is especially well suited to electric motors of blowers.

Abstract: A fan wheel has a cup shaped hub having an outer cup wall with a plurality of vanes and a cup bottom connectable with a shaft of a drive and provided at its inner side with a plurality of ribs defining a plurality of fields therebetween. The cup bottom in the region of the fields has a plurality of depressions extending from its inner side and having a width approximately 70% of a thickness of the cup bottom.

Abstract: A swivelable conduit is suggested which serves to deflect the air to be guided to the passenger space of a motor vehicle. The conduit comprises two pivot mountings which are flush with one another and are arranged at a distance from one another at a stationary structural element, preferably at the wall of an air duct; the pivot mountings comprise a bearing bush connected with one of the two elements and a bearing pin connected with the other element and in which the two bearing elements are provided with shoulder surfaces and counter-shoulder surfaces, respectively, which face one another and which define a relative movement of the two bearing elements which is directed in the direction of the swivel axis, and the bore hole wall surface of every bearing bush guides the two structural elements radially relative to the swivel axis in cooperation with an outer surface area of the bearing pin assigned to it.

Abstract: A blower for cooling an internal combustion engine of a power vehicle comprises an electric drive motor having a housing with slots for ventilation, and a series resistance provided on an outer side of the housing at a distance from the latter and covering the slots, the series resistance being connectable with and disconnectable from a working current circuit of the drive motor.

Abstract: A device for engine cooling includes at least one mechanical coolant pump driven by the engine to be cooled and at least one electric coolant pump controlled by an electronic switching device being provided in at least one cooling circuit of an engine to be cooled. The conveying capacity of the electric pump is set as a function of operating variables of the engine to be cooled and of further variables, while the mechanical pump is designed for a basic conveying capacity. In the coolant circuit a heat exchanger which is operated as a radiator, the cooling capacity of which can be altered with the aid of a radiator blind and of a fan, is arranged in a first coolant path. An additional heat exchanger, the waste heat of which is used for heating purposes or for further engine cooling, is arranged in an additional coolant path or in a separate coolant circuit.

Abstract: A device for heating a passenger space in a power vehicle comprises a main passage for supplying air, an intermediate passage associated with the main passage and branching into side passages connected with a passenger space, a heat exchanger, a branching passage leading from the main passage over the heat exchanger, a guiding element movable between and fixable in at least two end positions for air to connect the branching passage with the main passage and to separate the former from the latter so that in a flow direction of the air the air enters behind the heat exchanger in the intermediate passage, a blowing nozzle opening in a passenger space and connected with the intermediate passage, the intermediate passage being subdivided in partial passages, one of the partial passages being connected with the blowing nozzle while the other of the partial passages merging into the side passages, the guiding element in its operative position in which it connects the branching passage with the main passage opens a c

Abstract: An air conditioning device has a control member, an electric motor arranged to be operatively connected with the control member and drive the latter, an actuating element arranged to sense air temperature and to actuate the electric motor, an interrupting element for interrupting the connection between the electric motor and the control member, and a manual adjustment member arranged for manually adjusting the control member upon interruption of the connection between the electric motor and the control member.

Abstract: A radial blower, preferably for blowing air through a heat exchanger or air conditioner in a motor vehicle, mainly comprises an impeller wheel preferably directly driven by an electric motor, wherein the driven impeller wheel is mounted in a housing, the peripheral wall of which spirally approaches the outer periphery of the impeller wheel and passes at the outlet of the housing over in a so-called tongue delimiting the outlet at one side, in which the shortest distance between the outer periphery of the impeller wheel and the peripheral housing wall is located downstream of the tip of the tongue, as considered in the direction of rotation of the impeller wheel.

Abstract: A pump housing accommodates in it an output shaft of an electromotor which forms a unit with the pump, and a rotor having substantially slots is mounted on the output shaft for rotation. The slots accommodate sliding vanes. A mounting member mounts the rotor on the output shaft in such a manner that the motor can tilt to a limited extent about two axes which are normal to each other and to the longitudinal axis of the output shaft of the electromotor.