Abstract:
Vorgeschlagen ist ein Riemenscheibenentkoppler (1, 1') zur Antriebsmomentübertragung zwischen dem Riemen eines Startergenerator-Riementriebs und dem Startergenerator, umfassend: - eine Riemenscheibe (2), - eine auf der Generatorwelle des Startergenerators zu befestigende Nabe (4, 4'), - eine Entkopplerfeder (11, 11'), die bei angetriebenem Startergenerator das Antriebsmoment des Riemens von der Riemenscheibe auf die Nabe überträgt, - und eine Sperre, die bei antreibendem Startergenerator das Antriebsmoment der Generatorwelle von der Nabe auf die Riemenscheibe überträgt. Die Sperre soll durch ein Schlingband (12, 12') gebildet sein, das im Antriebsmomentfluss zwischen der Riemenscheibe und der Nabe parallel zur Entkopplerfeder geschaltet ist und bei antreibendem Startergenerator die Riemenscheibe drehsteif gegen die Nabe schlingt.
Abstract:
The invention relates to a belt pulley decoupler (1) for transmitting drive torque from belts of an auxiliary unit belt drive to the shaft of one of the auxiliary units, comprising: - a belt pulley (2), a hub (4, 4') which is to be secured to the shaft, and a series connection which is arranged in the drive torque flow between the belt pulley and the hub and consists of a decoupler spring (12, 12') and a wrap-around band (11) that extends in the direction of the rotational axis (13) of the belt pulley decoupler and is arranged radially between the belt pulley and the decoupler spring. Both ends (14, 17) of the wrap-around band should open out radially when the drive torque is transmitted, the first end of the wrap-around band (14), which extends in the drive torque flow on the belt pulley side, is braced against the inner surface (15) of a first sleeve (16) that is rotationally fixed in the belt pulley, and the second end of the wrap-around band (17), which extends in the drive torque flow on the decoupler spring side, is braced against the inner surface (18) of a second sleeve (19) which is rotationally mounted in the first sleeve.
Abstract:
The invention relates to a pulley decoupler (1) for transmitting drive torque from the belt of an auxiliary unit belt drive to the shaft of one of the auxiliary units, comprising: a pulley (2), a hub (4) to be secured to said shaft, and a series connection which is arranged in the drive torque flux between the pulley and the hub and consists of a decoupler spring (11) and a wrap-around band (10) that extends in the direction of the rotational axis (12) of said belt pulley decoupler and is arranged radially between said pulley and decoupler spring. The two ends (13, 16) of said wrap-around band should open out radially with the drive torque being transmitted, the first wrap-around band end (13), which runs on the pulley side in the drive torque flux, being braced against the inner surface (14) of a first sleeve (15, 15', 15") that is rotationally secured in the pulley, and the second wrap-around band end (16), which runs on the decoupler spring side in the drive torque flux, being braced against the inner surface (17) of a second sleeve (18) which can be rotated within said pulley.
Abstract:
Vorgeschlagen ist ein Riemenscheibenentkoppler (1) zur Antriebsmomentübertragung vom Riemen eines Nebenaggregate-Riementriebs auf die Welle eines der Nebenaggregate; mit: - einer Riemenscheibe (2) - einer auf der Welle zu befestigenden Nabe (4) - und einer im Antriebsmomentfluss zwischen der Riemenscheibe und der Nabe angeordneten Reihenschaltung aus einer Einwegkupplung (10) und einer Schraubendrehfeder (11), die sich in Richtung der Drehachse (12) des Riemenscheibenentkopplers erstreckt und sich unter Übertragung des Antriebsmoments radial aufweitet wobei die Enden der Schraubendrehfeder eine axial rampenförmig ansteigende Federabstützfläche (30, 39) eines ersten Federtellers (18) und eines zweiten Federtellers (24) kontaktieren. Dabei soll einer der Federteller ein Blechumformteil mit der daran angeformten Federabstützfläche sein.
Abstract:
An isolator decoupler comprising a shaft (1), a pulley (2) journalled to the shaft, a torsion spring (10) engaged between the pulley and a carrier (9), the torsion spring loaded in an unwinding direction, a wrap spring (11) engaged between the carrier and the shaft, the wrap spring comprising a cylindrical inner portion (94) and a planar outer portion (93) connected by a tapered portion (155), and the inner portion frictionally engaged with the shaft in a winding direction.
Abstract:
An isolating decoupler comprising a shaft, a pulley journalled to the shaft, a torsion spring engaged with the pulley, a wrap spring frictionally engageable with the shaft, the torsion spring and wrap spring connected in series such that each is torsionally loaded in a winding direction, the wrap spring comprising a variable cross-section having a first cross sectional dimension and a second cross sectional dimension, and the wrap spring temporarily releasable from the shaft in an overtorque condition by contact with the pulley urging the wrap spring in an unwinding direction.
Abstract:
A presente invenção refere-se a um impulsor de partida (100) para acoplamento com transmissão de torque entre um eixo acionador e um eixo acionado de um motor, compreendendo uma mola embreagem (6); um eixo acionado (8) possuindo uma extremidade de acoplamento (81) com a mola embreagem e um corpo (82) sobre o qual um pinhão de saída (13) está acoplado com transmissão de torque; um alojamento de mola embreagem (5) com uma face voltada para o eixo acionador à qual são acopladas rotativamente uma pluralidade de engrenagens planetárias (1) acionadas pelo eixo acionador, e uma face voltada para um eixo acionado dotada de meios para fixação (51) de uma mola embreagem, a mola embreagem (6) sendo fixada aos meios de fixação de mola embreagem do alojamento e sendo acoplável por fricção à extremidade de acoplamento (81) do eixo acionado, para transmissão de torque do alojamento de mola embreagem para o eixo acionado; e uma coroa (11) com um perfil interno dentado no qual são engrenadas as engrenagens planetárias (1).
Abstract:
An isolator decoupler comprising a pulley (5), the pulley journalled to a shaft (1), a torsion spring (6) having an end (61) engaged with the pulley (5), the torsion spring (6) loadable in an unwinding direction, a one-way clutch carrier (8), a one-way clutch (14) disposed between the shaft (1) and the one-way clutch carrier (8), a wrap spring (7) engagable with an inner surface (81) of the one-way clutch carrier (8), the wrap spring (7) coupled to the torsion spring (6), and the wrap spring (7) loadable in the unwinding direction such that the wrap spring (7) through friction is able to lockably engage the inner surface (81) in a driving direction.
Abstract:
In one aspect, the invention is directed to a decoupler assembly for between an endless drive element and a shaft. The endless drive element may be, for example, an accessory drive belt from a vehicular engine. The shaft may be, for example, the input shaft of a belt-driven accessory, such as an alternator or a compressor. The decoupler assembly includes a hub that mounts to the shaft, a pulley that is rotatable with respect to the hub, a dampening spring and a clutch member. A part of the pulley is supported on a pulley support surface on the hub. There is a gap between the pulley and the pulley support surface. The gap has lubricant therein to facilitate sliding between the pulley and the pulley support surface. By eliminating the use of a polymeric bushing between pulley and the hub, there are several advantages that are provided.