Crankshaft assembly with a centrifugal pendulum attached to the crankshaft
AssigneeSchaeffler Technologies AG & Co. KG
InventorsMathias Girnus, Pascal Strasser, Roman Weisenborn
Life of this patent
Estimating the term…
Abstract
A crankshaft assembly for a motor vehicle drive train includes a crankshaft segment and a centrifugal pendulum secured to same, which has a carrier secured to the crankshaft segment and at least one pendulum mass that moves relative to the carrier along a predetermined track. The crankshaft assembly has a rupture containment means, which engages radially externally around the centrifugal pendulum such that components of the centrifugal pendulum coming lose during rotation of the centrifugal pendulum are collected by the rupture containment means.
Claims17
A crankshaft assembly for a motor vehicle drive train, comprising:
- a crankshaft segment;
- and
- a centrifugal pendulum secured to the crankshaft segment, the centrifugal pendulum including a carrier secured to the crankshaft segment and at least one pendulum mass that moves relative to the carrier along a predetermined track, the crankshaft assembly having a rupture containment means, which engages radially externally around the centrifugal pendulum such that components of the centrifugal pendulum coming lose during rotation of the centrifugal pendulum are collected by the rupture containment means,
- wherein the crankshaft assembly has a friction device which is connected to the carrier and which rests against the at least one pendulum mass in such a way that the friction device applies to the pendulum mass a frictional moment counteracting a relative movement when the pendulum mass moves relative to the carrier,
- wherein the friction device has a friction element resting against the pendulum mass, a receiving disc connected to the carrier and a spring element supported axially between the friction element and the receiving disc, wherein the receiving disc forms the rupture containment means,
- wherein the friction element is received in the receiving disc in a non-rotatable manner on a radial outer side of the friction element.
A crankshaft assembly for a motor vehicle drive train, comprising:
- a crankshaft segment;
- and
- a centrifugal pendulum secured to the crankshaft segment, the centrifugal pendulum including a carrier secured to the crankshaft segment and at least one pendulum mass that moves relative to the carrier along a predetermined track, the crankshaft assembly including a receiving disc extending radially outside of the carrier and the at least one pendulum mass, the crankshaft segment including imbalance compensation beam on an axially opposite side of the centrifugal pendulum as the receiving disc, the imbalance compensation beam including a frontal recess receiving the at least one pendulum mass.
A method of constructing a crankshaft assembly for a motor vehicle drive train, the method comprising:
- non-rotatably connecting a carrier of a centrifugal pendulum to a crankshaft segment;
- movably connecting at least one pendulum mass to the carrier;
- non-rotatably connecting a receiving disc to the carrier, an axial section of the receiving disc extending axially at a location radially outside of the carrier and the at least one pendulum mass;
- and
- connecting a friction device to the carrier to cause the friction device to rest against the at least one pendulum mass in such a way that the friction device applies to the pendulum mass a frictional moment counteracting a relative movement when the pendulum mass moves relative to the carrier, the friction device including a spring element and/or a friction element supported axially on a radial section of the receiving disc and supported circumferentially on an axial projection of the receiving disc.
Dependencies are inferred from the claim text.