Hydrokinetic coupling apparatus and method for mounting same
AssigneeValeo Embrayages
InventorsRabah Arhab, Norberto Termenon
Life of this patent
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Abstract
A coupling apparatus for a motor vehicle, including a hub designed to link in rotation an output shaft and a turbine wheel a clutch for locking the coupling between the input shaft and output shaft. A locking piston is axially mobile between a wall integral with the turbine wheel and a wall for locking a crankcase designed rotatable link the input shaft and an impeller wheel. A female member of sealing mechanism, linked to the piston axially about a male member of the sealing mechanism, linked to the hub. A damping mechanism is clamped between the piston and the wall and an output member linked to the hub. The male member and the damping output member are each mounted on the hub or born by a member mounted on the hub.
Claims27
A hydrokinetic coupling apparatus for coupling together a driving shaft and a driven shaft, the hydrokinetic coupling apparatus comprising:
- a casing (14) coupled to the driving shaft in rotation to an impulse wheel,
- a hub (16) coupled to the driven shaft and a turbine wheel (18),
- a lock-up clutch (34) for locking the coupling of the driving and driven shafts, the clutch comprising:
- a movable locking piston (36) which is displaceable axially between a wall (38) delimiting the turbine wheel (18) and a substantially radial locking wall (20) of the casing (14), against which the piston (36) is biased for locking the coupling,
- sealing means between two hydraulic chambers (50, 52) which are separated by the piston (36), the sealing means having a female member (42), coupled to the piston (36) and sliding axially around a complementary male member (44) formed separate from the hub (16),
- a friction disc (54) adapted to be gripped between the piston (36) and the locking wall (20),
- and circumferential damping means (56) which are provided with a damping input member (60A, 60B;
- 64) coupled to the friction disc (54), and with a damping output member (64;
- 60) which is coupled to the hub (16),
- wherein each of the male member (44) of the sealing means and the damping output member (64;
- 60) is attached on the hub (16) or carried by a member attached on the hub (16).
A hydrokinetic coupling apparatus for coupling together a driving shaft and a driven shaft, the hydrokinetic coupling apparatus comprising:
- a casing (14) coupled to the driving shaft in rotation to an impulse wheel;
- a hub (16) coupled to the driven shaft and a turbine wheel (18);
- a lock-up clutch (34) for locking the coupling of the driving and driven shafts, the clutch comprising:
- a movable locking piston (36) which is displaceable axially between a wall (38) delimiting the turbine wheel (18) and a substantially radial locking wall (20) of the casing (14), against which the piston (36) is biased for locking the coupling;
- sealing means between two hydraulic chambers (50, 52) which are separated by the piston (36), the sealing means having a female member (42), coupled to the piston (36) and sliding axially around a complementary male member (44) coupled to the hub (16);
- a friction disc (54) adapted to be gripped between the piston (36) and the locking wall (20);
- and
- and circumferential damping means (56) which are provided with a damping input member (60A, 60B;
- 64) coupled to the friction disc (54), and with a damping output member (64;
- 60) which is coupled to the hub (16);
- wherein each of the male member (44) of the sealing means and the damping output member (64;
- 60) is attached on the hub (16) or carried by a member attached on the hub (16), and
- wherein the male member (44) of the sealing means is carried by a substantially axial extension (76) of the wall (38) delimiting the turbine wheel (18), the substantially axial extension (76) is fixed to the hub (16) by a welded joint.
A hydrokinetic coupling apparatus for coupling together a driving shaft and a driven shaft, the hydrokinetic coupling apparatus comprising:
- a casing (14) coupled to the driving shaft in rotation to an impulse wheel;
- a hub (16) coupled to the driven shaft and a turbine wheel (18);
- a lock-up clutch (34) for locking the coupling of the driving and driven shafts, the clutch comprising:
- a movable locking piston (36) which is displaceable axially between a wall (38) delimiting the turbine wheel (18) and a substantially radial locking wall (20) of the casing (14), against which the piston (36) is biased for locking the coupling;
- sealing means between two hydraulic chambers (50, 52) which are separated by the piston (36), the sealing means having a female member (42), coupled to the piston (36) and sliding axially around a complementary male member (44) coupled to the hub (16);
- a friction disc (54) adapted to be gripped between the piston (36) and the locking wall (20);
- and
- and circumferential damping means (56) which are provided with a damping input member (60A, 60B;
- 64) coupled to the friction disc (54), and with a damping output member (64;
- 60) which is coupled to the hub (16);
- wherein each of the male member (44) of the sealing means and the damping output member (64;
- 60) is attached on the hub (16) or carried by a member attached on the hub (16), and
- wherein the male member (44) of the sealing means is formed on a peripheral edge of a plate portion (24) connected to the hub (16), the plate portion (24) has the general form of a body of revolution and includes a central fitting aperture (80) for fitting over the hub (16).
Dependencies are inferred from the claim text.