摘要:
A device for transmitting the movement to a fan (1) cooling the cooling liquid of a motor vehicle, comprising movement generating means (2;2a,2b) on which the fan (1) is mounted by means of an idle support (1a), characterized in that it comprises an induction coupling (10) with a front-linkage electromagnetic operating system (11a,11b) having a conducting element (15;115) integral with said fan (1,1a).
摘要:
Es wird eine Reibscheibenkupplung insbesondere für ein Lüfterrad (2) eines Kraftfahrzeug-Verbrennungsmotors oder dergleichen vorgeschlagen, bei welchem eine unmittelbare Drehzahlübertragung der Motordrehzahl über eine erste, als pneumatisch oder hydraulisch betätigbare Reibscheibenkupplung erfolgt, wobei bei ausgeschalteter Reibscheibenkupplung (5) eine verminderte Schleppdrehzahl des Lüfterrades über eine Wirbelstromkupplung (6) übertragen wird.
摘要:
Es wird eine elektromagnetisch betätigbare Reibscheibenkupplung für ein Lüfterrad eines Ventilators, insbesondere von Kraftfahrzeug-Verbrennungsmotoren vorgeschlagen, bei welchen das Lüfterrad mit Motordrehzahl und zwei unterschiedlichen Schleppdrehzahlen antreibbar ist. Zur Herstellung der Motordrehzahl ist eine erste elektromagnetische Reibscheibenkupplung (4) vorgesehen, die das Lüfterrad (2) über einen Ankerring (15) und einer Lüfterradnabe (17) antreibt. Eine niedrigere Schleppdrehzahl wird durch eine zweite elektromagnetische Reibscheibenkupplung (6) über eine Wirbelstromkupplung (7) erzeugt. Hierzu dient ein spezielles, einstückiges Stufenkugellager (19), dessen Zwischenring (22) als Antriebsflansch (22) für die Wirbelstromkupplung (7) dient.
摘要:
Provided is an external control type fan clutch device with improved operation characteristics of an electromagnetic valve for controlling the amount of oil supply to a torque transmission chamber. In the external control type fan clutch device of a type in which an electromagnet fixed to a rotating shaft side is energized, thereby activating a valve member formed of a plate spring and an armature and provided to a drive disk or a sealed housing to externally control opening and closing an oil circulating flow passage (oil supply port), the valve member is structured so that the armature attached to the plate spring of the valve member is divided into a plurality of pieces in the direction from the base end side to the oscillating end side of the plate spring to provide a plurality of bend points of the plate spring.
摘要:
Device for transmitting the driving movement to a fan (1) for cooling the coolant in a motor vehicle, comprising movement generating means (3, 21), on which the fan (1) is mounted by means of an idle support (1a), a first electromagnetic clutch (30), engagement of which produces rotation of the fan at the same number of revolutions as that of the movement generating means; a second clutch (60), engagement/disengagement of which produces rotation of the fan at a number of revolutions less than or at zero revolutions relative to that of the movement generating means; means (70) for controlling engagement/disengagement (50) of the second clutch, comprising an actuating element (41) coaxially movable during displacement, in both directions, with respect to the movement generating means (3, 21), but idle upon rotation of the latter, said means (70) for controlling said actuating element (41) comprising a seat (70) which has, arranged inside it, a baffle (71) able to form a stop for said actuating element (41) and movable in an axial direction between at least two different end-of-travel positions (72a, 72b).
摘要:
Apparatus for controlling operation of the shaft (2) actuating devices for recirculating (1) and cooling (V) a cooling fluid in an engine, in particular for vehicles and like, comprising means (3,3b) for generating the movement of said shaft (2) and means for transmitting the movement from the said generating means (3,3b) to the shaft (2), in which said movement transmission means comprise fixed electromagnetic means (22), a rotor (30;130;230) integral with the movement generating means (3,3b) and an armature (50;250) rotationally integral with the fluid cooling means (40,4;140,4;240,4,1240,4), between said armature (50;250) and said cooling means (40,4;140,4;240,4,1240,4) there being arranged a resilient element (43) able to allow a movement of the said armature (50;250) in the axial direction.
摘要:
Device for transmitting the movement to a fan (1) for cooling the coolant in a motor vehicle, comprising movement generating means (3,21) on which the fan (1) is mounted by means of an idle support (la), a first electromagnetic clutch (30), engagement of which causes rotation of the fan at a number of revolutions equal to that of the movement generating means; a second clutch (60;160;260;360), engagement/disengagement of which causes rotation of the fan at a number of revolutions lower than that of the movement generating means or at zero revolutions; which comprises means (50;150;250;350) for engaging/disengaging the second clutch comprising an actuating element (41) coaxially displaceable, in both directions, with respect to the movement generating means (3;21), but idle upon rotation of the latter; coupling means (47;147;247c;347) which are coaxially locked in rotation with the movement generating means (3;21) and connected to said displacement actuating element (41) and are suitable for engagement with the rotor (61;161;261;361) of the said second clutch (60;160;260;360).
摘要:
Known cooling fans for internal combustion engines designed to prevent an unintentional entrainment of the fan wheel are equipped with braking and locking devices, which imply a corresponding construction of the clutch and hence are relatively complicated. The invention proposes that the fluid friction clutch (6) be combined with a locking device in the form of a swivel hook (15) that can be rigidly mounted with a holding device (7), even as a retrofit, and can be released using an electromagnet (10). This electromagnet (10) can be accommodated in the circuit of the ignition lock (23) so that when the engine is started the fan wheel is prevented from following into unwanted rotation. The invention is used for fluid friction clutches of engine cooling fans.