Abstract: A set of parts for a radial fan has a fan wheel (2), a main housing part (1), and a complementary housing part (3). They can be assembled to form a first housing that encloses the fan wheel (2). The housing has an inlet opening (27) and an outlet (23). At least one second complementary fan wheels (2?, 2?) (3?, 3?), the shape of which differs from the first fan wheel part (2), can be connected to the motor instead of the fan wheel (2).

Abstract: A set of parts for a radial fan has a fan wheel (2), a main housing part (1), and a complementary housing part (3). They can be assembled to form a first housing that encloses the fan wheel (2). The housing has an inlet opening (27) and an outlet (23). At least one second complementary fan wheels (2?, 2?) (3?, 3?), the shape of which differs from the first fan wheel part (2), can be connected to the motor instead of the fan wheel (2).

Abstract: A fan has an electronically commutated external-rotor motor serving to drive it. The motor has an internal stator (20) having a stator lamination stack (64) and a winding arrangement (66; 164, 166, 168, 170) associated with the stack. The internal stator has a central opening (149) for journaling a shaft (42). The fan further has a permanent-magnet rotor (28) separated from the internal stator (20) by a magnetically effective air gap (99). The internal stator (20) has a plastic coating (56, 58) that surrounds the stator windings, forms a bearing tube for journaling the shaft (42), and defines a wall element (62), implemented integrally with the plastic coating (56, 58), forming a compartment or cavity (108) for electrical components (112) of the motor. The plastic coating, bearing tube and compartment are preferably molded in a single working step.

Abstract: An apparatus and system for monitoring plant leaves to determine plant water needs and an automated variable-rate irrigation management system which can implement precision irrigation by taking into account specific plant water status is presented. Single or networked sensor platforms have a suite of sensors including a leaf temperature sensor for measuring leaf temperatures over time; an air temperature sensor; a relative humidity sensor for measuring relative humidity surrounding a leaf; a wind speed sensor for measuring wind speed surrounding a leaf; and an ambient light sensor for measuring solar radiation on the leaf. One platform has diffuser dome, leaf retainer and wind barrier structures. The sensor platform may have a computer processor and programming for obtaining and recording sensor measurements and determining plant water status in response to sensor measurements. The system may have a central control computer and communications link for communications with the platforms.

Abstract: A mobile application for execution on a handheld computing device stores data regarding connections to public safety answering points with which to share information in an emergency situation and establishes connections with an appropriate public safety answering point upon activation of an emergency button, wherein the connections include voice, text, image and video connections. A user is able to create a list of contacts for a private social emergency response network with which to send previously stored private information in an emergency. In an emergency, the mobile application establishes a platform via which the user and those on the private social emergency response network can share information. The mobile application also sends previously stored private information to those on the list during an emergency.

Abstract: An apparatus and system for monitoring plant leaves to determine plant water needs and an automated variable-rate irrigation management system which can implement precision irrigation by taking into account specific plant water status is presented. Single or networked sensor platforms have a suite of sensors including a leaf temperature sensor for measuring leaf temperatures over time; an air temperature sensor; a relative humidity sensor for measuring relative humidity surrounding a leaf; a wind speed sensor for measuring wind speed surrounding a leaf; and an ambient light sensor for measuring solar radiation on the leaf. One platform has diffuser dome, leaf retainer and wind barrier structures. The sensor platform may have a computer processor and programming for obtaining and recording sensor measurements and determining plant water status in response to sensor measurements. The system may have a central control computer and communications link for communications with the platforms.

Abstract: An electronically commutated external-rotor motor has an internal stator (20), having a stator lamination stack (64) and a winding arrangement (66) associated therewith. the latter, as well as a central opening (149) of the stator lamination stack (64), in which opening a bearing tube (56) is arranged. The motor further has a permanent-magnet external rotor (26) separated from the stator lamination stack (64) by a magnetically effective air gap (99), which rotor has a shaft (42) that is journalled in the bearing tube (56). First and second rolling bearings (48, 50) are arranged at a distance from one another in the bearing tube (56). The first rolling bearing (48), adjacent the rotor hub, is a floating bearing, while the second rolling bearing (50), near the shaft end (70) remote from the hub (40), is braced with one side against a shoulder (82) provided in the bearing tube (56).

Abstract: An apparatus may include a heat exchanger and an equalizing vessel for equalizing changes in coolant volume. The heat exchanger may include an inflow for delivering coolant to the heat exchanger and an outflow for discharging coolant from the heat exchanger. The equalizing vessel may be closed off by a flexible membrane that follows changes in volume of the coolant. The equalizing vessel may include a first chamber that is in liquid communication with the inflow of the heat exchanger and a second chamber that is in liquid communication with the outflow of the heat exchanger. A filter may also be provided to filter the coolant.

Abstract: A mobile application for execution on a handheld computing device stores data regarding connections to public safety answering points with which to share information in an emergency situation and establishes connections with an appropriate public safety answering point upon activation of an emergency button, wherein the connections include voice, text, image and video connections. A user is able to create a list of contacts for a private social emergency response network with which to send previously stored private information in an emergency. In an emergency, the mobile application establishes a platform via which the user and those on the private social emergency response network can share information. The mobile application also sends previously stored private information to those on the list during an emergency.

Abstract: A fan has an electronically commutated external-rotor motor serving to drive it. The motor has an internal stator (20) having a stator lamination stack (64) and a winding arrangement (66; 164, 166, 168, 170) associated with said stack. The internal stator has a central opening (149) for journaling a shaft (42). The fan further has a permanent-magnet rotor (28) separated from the internal stator (20) by a magnetically effective air gap (99), which rotor is equipped on its outer side with fan blades (32) and comprises a shaft (42) journalled in the central opening (149) of the internal stator (20).

Abstract: An electronically commutated external-rotor motor has an internal stator (20), having a stator lamination stack (64) and a winding arrangement (66) associated therewith. the latter, as well as a central opening (149) of the stator lamination stack (64), in which opening a bearing tube (56) is arranged. The motor further has a permanent-magnet external rotor (26) separated from the stator lamination stack (64) by a magnetically effective air gap (99), which rotor has a shaft (42) that is journalled in the bearing tube (56). First and second rolling bearings (48, 50) are arranged at a distance from one another in the bearing tube (56). The first rolling bearing (48), adjacent the rotor hub, is a floating bearing, while the second rolling bearing (50), near the shaft end (70) remote from the hub (40), is braced with one side against a shoulder (82) provided in the bearing tube (56).

Abstract: An arrangement for conveying fluids has a fluid pump (174) having a rotatably journaled pump wheel (172) that is joined to a first permanent magnet (186) and an electronically commutated internal-rotor motor (152) having a stator (154) and a rotor (156), as well as a shaft (160) associated with the latter, which shaft is journaled rotatably relative to the stator (154) . The arrangement also has a second permanent magnet (184) joined nonrotatably to the rotor (156) , which magnet coacts with the first permanent magnet (186) to serve as a magnetic coupling. A separating can (170, 180, 188) hermetically separates the first permanent magnet (186) arranged inside the separating can, from the second permanent magnet (184) arranged outside the separating can. A fan wheel (218) mounted on the motor shaft, provides cooling air.

Abstract: A heat exchanger serves to cool a cooling medium, which in turn is intended to cool an electronic component (76). The heat exchanger has an inflow (64) for delivery of hot coolant, and an outflow (68) for discharge of coolant cooled in the heat exchanger. An equalizing vessel (30) is joined to the heat exchanger to form one module. The vessel serves to equalize changes in coolant volume. The equalizing vessel (30) is closed off by a flexible membrane (54) which follows such changes in volume. The equalizing vessel (30) is implemented as a component of the coolant circuit. One part of the equalizing vessel is implemented as a component of the inflow (64) and another part as a component of the outflow (68), which parts are in liquid communication with one another via a switchback path through passages (22) within the heat exchanger (20) that is implemented in double-flow fashion.

Abstract: A motor structure resistant to liquid intrusion features two modules, the first having an electronically commutated external-rotor motor (20), which motor comprises an internal stator (22) that is arranged on a bearing tube (30) and is separated by a first air gap (24) from an external rotor (26; 92), which latter comprises a rotor cup (40) that is open at one end and is joined at its other end to a shaft (46) that is journalled in the bearing tube (30), further having a permanent-magnet arrangement (76), arranged at the open end of the rotor cup (40), for magnetic interaction with a second permanent-magnet rotor (92), forming part of the second module. The first module is separated from that second rotor (92) by a second air gap and forms therewith a magnetic coupling (94), so that a rotation of the permanent-magnet arrangement (76) brings about a rotation of that second rotor (92).

Abstract: A method of rapidly assembling the rotor (22) of an external-rotor motor (20) onto a bearing support tube (70) and in a predetermined axial position relative to the latter, includes the steps of: beginning at a rotor cup portion (24) of the rotor (22), mounting on a rotor shaft (28): a compression spring (48), a retaining washer (50), and a plurality of rolling bearings (52, 60); then pressing into the bearing support tube (70), by means of a pressing-in force (K), the rotor (24), with the elements mounted thereon, the compression spring (48) being compressed so that the rotor cup presses the washer (50) into the tube (70); subsequently removing the pressing-in force (K), and displacing the rotor shaft (28) by means of the compression spring (48) within the bearings (52, 60) so that the rotor (24) assumes the desired predetermined axial position, relative to the tube (70).

Abstract: A motor structure resistant to liquid intrusion features two modules, the first having an electronically commutated external-rotor motor (20), which motor comprises an internal stator (22) that is arranged on a bearing tube (30) and is separated by a first air gap (24) from an external rotor (26; 92), which latter comprises a rotor cup (40) that is open at one end and is joined at its other end to a shaft (46) that is journalled in the bearing tube (30), further having a permanent-magnet arrangement (76), arranged at the open end of the rotor cup (40), for magnetic interaction with a second permanent-magnet rotor (92), forming part of the second module. The first module is separated from that second rotor (92) by a second air gap and forms therewith a magnetic coupling (94), so that a rotation of the permanent-magnet arrangement (76) brings about a rotation of that second rotor (92).

Abstract: An external rotor motor, suitable for driving a cooling fan, has a structure which facilitates automated assembly with proper angular registration. The rotor has a central shaft which is rotatably supported inside a bearing support tube having a tapered outer surface formed with a circumferential stop and longitudinal guide grooves. An inner stator structure is located radially between the bearing support tube and the rotor. The stator has an internal recess containing a securing ring or disk with inwardly extending tabs. During assembly of the inner stator onto the bearing support tube, the tabs slide in the guide grooves, then bend to form barbs which engage into the outer surface of the bearing support tube, thereby securing the stator on the bearing support tube in a predefined angular orientation. The circumferential stop assures insertion of the bearing support tube to the correct depth.

Abstract: A method of rapidly assembling the rotor (22) of an external-rotor motor (20) onto a bearing support tube (70) and in a predetermined axial position relative to the latter, which rotor (22) comprises a rotor cup (24) and a rotor shaft (28), includes the following steps: a) beginning at the rotor cup (24), pre-mounting, onto the rotor shaft (28), a compression spring (48), a retaining washer (50), and a bearing arrangement having a plurality of rolling bearings (52, 60), the inner rings (56, 64) of the rolling bearings being slidingly displaceable on the rotor shaft (28) within a predetermined region; b) pressing the rotor (24), with the elements mounted thereon, into the bearing support tube (70) by means of a pressing-in force (K), the compression spring (48) being compressed so that the rotor cup presses the retaining washer (50) into the bearing support tube (70); and c) removing the pressing-in force (K) so that the rotor shaft (28) is displaced by means of the compression spring (48) within the inne

Abstract: An external rotor motor, suitable for driving a cooling fan, has a structure which facilitates automated assembly with proper angular registration. The rotor has a central shaft which is rotatably supported inside a bearing support tube having a tapered outer surface formed with a circumferential stop and longitudinal guide grooves. An inner stator structure is located radially between the bearing support tube and the rotor. The stator has an internal recess containing a securing ring or disk with inwardly extending tabs. During assembly of the inner stator onto the bearing support tube, the tabs slide in the guide grooves, then bend to form barbs which engage into the outer surface of the bearing support tube, thereby securing the stator on the bearing support tube in a predefined angular orientation. The circumferential stop assures insertion of the bearing support tube to the correct depth.