Torsional vibration damper with an integrated tilger drive plate and a torque converter with a torsional vibration damper with an integrated tilger drive plate

Patent metadata

Field	Value
Publication number	US-10088027-B2
Application number	US-201615183990-A
Country	US
Kind code	B2
Filing date	Jun 16, 2016
Priority date	Jun 16, 2016
Publication date	Oct 2, 2018
Grant date	Oct 2, 2018

Abstract

A torque converter, including: a cover to receive torque; an impeller including an impeller shell non-rotatably connected to the cover and an impeller blade; a turbine including a turbine shell and a turbine blade; a first vibration damper including a drive plate to receive torque from the cover, a first cover plate including first and second portions, a first spring directly engaged with the drive plate and the first portion of the first cover plate, and a second cover plate non-rotatably connected to the first cover plate, surrounding a portion of the first spring in a direction orthogonal to a longitudinal axis for the first spring, and including an opening; and a second vibration damper including a cover plate non-rotatably connected to the turbine shell, and a second spring directly engaged with the cover plate for the second vibration damper and with the second portion of the first cover plate.

First claim

What is claimed is:

1. A vibration damper assembly, comprising:
an axis of rotation;
a first vibration damper including:
a drive plate arranged to receive torque from a cover for a torque converter;
a first cover plate including first and second portions;
a first spring directly engaged with the drive plate and the first portion of the first cover plate; and,
a second cover plate:
non-rotatably connected to the first cover plate;
surrounding a portion of the first spring in a direction orthogonal to a longitudinal axis for the first spring; and,
including an opening; and,

a second vibration damper including:
a cover plate arranged to non-rotatably connect to a turbine shell for the torque converter; and,
a second spring directly engaged with the cover plate for the second vibration damper and the second portion of the first cover plate.

2. The vibration damper assembly of claim 1 , wherein:
the first cover plate includes a third portion;
a line orthogonal to the axis of rotation passes through in sequence: a first edge of the opening; the third portion of the first cover plate; and a second edge of the opening; and,
the first and second edges are formed by material forming the second cover plate.

3. The vibration damper assembly of claim 2 , wherein the third portion of the first cover plate is axially located between the first and second portions of the first cover plate.

4. The vibration damper assembly of claim 2 , wherein a line parallel to the axis of rotation passes through in sequence: the first portion of the first cover plate; the third portion of the first cover plate; the second portion of the first cover plate; and the cover plate for the second vibration damper.

5. The vibration damper assembly of claim 2 , wherein:
the first portion of the first cover plate includes a first radially outwardly facing surface;
the second portion of the first cover plate includes a second radially outwardly facing surface;
the third portion of the first cover plate includes a third radially outwardly facing surface; and,
a line parallel to the axis of rotation is co-linear with the first, second and third radially outwardly facing surfaces.

6. The vibration damper assembly of claim 1 , wherein a line parallel to the axis of rotation passes through in sequence: the first spring; the opening; the second spring; and the cover plate for the second vibration damper.

7. The vibration damper assembly of claim 1 , wherein:
the first cover plate includes a third portion radially inward of the first portion of the first cover plate; and,
a line orthogonal to the axis of rotation passes through in sequence: the third portion of the first cover plate; the first spring; the first portion of the first cover plate; and the second cover plate.

8. The vibration damper assembly of claim 1 , wherein:
the first portion of the first cover plate includes a first radially outwardly facing surface;
the second portion of the first cover plate includes a second radially outwardly facing surface; and,
a line parallel to the axis of rotation is co-linear with the first and second radially outwardly facing surfaces.

9. The vibration damper assembly of claim 1 , wherein the first vibration damper includes:
an output flange arranged to non-rotatably connect to an input shaft for a transmission; and,
a third spring directly engaged with the first cover plate, the second cover plate, and the output flange.

10. A torque converter, comprising:
an axis of rotation;
a cover arranged to receive torque from an engine;
an impeller including:
an impeller shell non-rotatably connected to the cover; and,
at least one impeller blade;

a turbine including:
a turbine shell; and,
at least one turbine blade;

a first vibration damper including:
a drive plate arranged to receive torque from the cover;
a first cover plate including first and second portions;
a first spring directly engaged with the drive plate and the first portion of the first cover plate; and,
a second cover plate:
non-rotatably connected to the first cover plate;
surrounding a portion of the first spring in a direction orthogonal to a longitudinal axis for the first spring; and,
including an opening; and,

a second vibration damper including:
a cover plate non-rotatably connected to the turbine shell; and,
a second spring directly engaged with the cover plate for the second vibration damper and with the second portion of the first cover plate.

11. The torque converter of claim 10 , wherein:
the first cover plate includes a third portion;
a line orthogonal to the axis of rotation passes through in sequence: a first edge of the opening; the third portion of the first cover plate; and a second edge of the opening; and,
the first and second edges are formed by material forming the second cover plate.

12. The torque converter of claim 11 , wherein the third portion of the first cover plate is axially located between the first and second portions of the first cover plate.

13. The torque converter of claim 11 , wherein a line parallel to the axis of rotation passes through in sequence: the first portion of the first cover plate; the third portion of the first cover plate; the second portion of the first cover plate; and the cover plate for the second vibration damper.

14. The torque converter of claim 11 , wherein:
the first portion of the first cover plate includes a first radially outwardly facing surface;
the second portion of the first cover plate includes a second radially outwardly facing surface;
the third portion of the first cover plate includes a third radially outwardly facing surface; and,
a line parallel to the axis of rotation is co-linear with the first, second and third radially outwardly facing surfaces.

15. The torque converter of claim 10 , wherein a line parallel to the axis of rotation passes through in sequence: the first spring; the opening; the second spring; and the cover plate for the second vibration damper.

16. The torque converter of claim 10 , wherein:
the first cover plate includes a third portion radially inward of the first portion of the first cover plate; and,
a line orthogonal to the axis of rotation passes through in sequence: the third portion of the first cover plate; the first spring; the first portion of the first cover plate; and the second cover plate.

17. The torque converter of claim 10 , wherein:
the first portion of the first cover plate includes a first radially outwardly facing surface;
the second portion of the first cover plate includes a second radially outwardly facing surface; and,
a line parallel to the axis of rotation is co-linear with the first and second radially outwardly facing surfaces.

18. The torque converter of claim 10 , wherein the first vibration damper includes:
an output flange arranged to non-rotatably connect to an input shaft for a transmission; and,
a third spring directly engaged with the first cover plate, the second cover plate, and the output flange.

19. The torque converter of claim 10 , further comprising:
a lock-up clutch including a piston, wherein:
the drive plate is non-rotatably connected to the piston; and,
the piston is axially displaceable to non-rotatably connect the cover and the drive plate.

20. A torque converter, comprising:
an axis of rotation;
a cover arranged to receive torque from an engine;
an impeller including:
an impeller shell non-rotatably connected to the cover; and,
at least one impelle

Assignees

• Schaeffler Technologies Ag

Inventors

• Metz Sean
• Clark Justin

Classifications

• F16H45/02

  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type (control of torque converter lock-up clutches F16H61/14) · CPC title

• F16F2236/08

  Torsion · CPC title

• F16H41/24 Primary

  Details · CPC title

• F16D25/06

  in which the fluid actuates a piston incorporated in, {i.e. rotating with} the clutch (F16D25/02 takes precedence) · CPC title

• F16F15/121

  using springs as elastic members, e.g. metallic springs {(F16F15/133 takes precedence)} · CPC title