# US 10,309,508 B2 · Wheel stator assembly

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- Number: US 10,309,508 B2
- Document ID: US10309508B2
- Status: Granted
- Kind: B2
- Application number: 15/434,661
- Filed: 2017-02-16
- Published: 2017-09-21
- Granted: 2019-06-04
- Earliest claimed: 2016-03-18
- Assignees: Exedy Corporation
- Applicants: EXEDY Corporation
- Inventors: Satoru Matsuda
- Web page: https://patentgrep.com/patent/US10309508B2

## CPC

- F16H 41/24: Details
- F16H 2041/246: {relating to one way clutch of the stator}
- F16H: GEARING

## Abstract

A wheel stator assembly includes a one-way clutch, a stator and a thrust plate. The one-way clutch includes an inner race and an outer race disposed on an outer peripheral side of the inner race. The stator includes a stator carrier and a plurality of stator blades. The stator blades are mounted on an outer peripheral side of the stator carrier. The stator carrier is supported by an outer peripheral part of the outer race. The stator carrier includes an inner peripheral extended part. The inner peripheral extended part extends to an inner peripheral side and is opposed to a lateral surface of the inner race. The thrust plate is disposed axially between the inner race and the inner peripheral extended part of the stator carrier and can contact the lateral surface of the inner race. The thrust plate is rotatable in synchronization with the stator carrier.

## Claims

### Claim 1

A wheel stator assembly for regulating a direction of a fluid flowing from a turbine to an impeller in a torque converter, the wheel stator assembly comprising:
a one-way clutch including an inner race and an outer race, the outer race disposed on an outer peripheral side of the inner race;
a stator including a stator carrier and a plurality of stator blades, the plurality of stator blades mounted to an outer peripheral side of the stator carrier, the stator carrier supported by an outer peripheral part of the outer race, the stator carrier including an inner peripheral extended part, the inner peripheral extended part extending to an inner peripheral side so as to be opposed to a lateral surface of the inner race; and
a thrust plate disposed axially between the inner race and the inner peripheral extended part of the stator carrier so as to be contactable to the lateral surface of the inner race, the thrust plate configured to be rotatable in synchronization with the stator carrier.

### Claim 2 (depends on 1)

The wheel stator assembly according to claim 1, wherein the thrust plate has a surface hardness that is lower than a surface hardness of the inner race and is higher than a surface hardness of the stator.

### Claim 3 (depends on 1)

The wheel stator assembly according to claim 1, wherein
the inner peripheral extended part of the stator carrier includes at least one engaged part, and
the thrust plate includes at least one engaging part, the at least one engaging part engaged with the at least one engaged part.

### Claim 4 (depends on 3)

The wheel stator assembly according to claim 3, wherein
the at least one engaged part of the stator carrier is at least one hole or cutout, the at least one hole or cutout axially penetrating the stator carrier, and
the at least one engaging part of the thrust plate is at least one pawl, the at least one pawl formed by bending part of the thrust plate, the at least one pawl inserted into the at least one hole or cutout.

### Claim 5 (depends on 1)

The wheel stator assembly according to claim 1, wherein
the stator carrier includes an annular recess recessed in an axial direction, and
the thrust plate is press-fitted to the annular recess so as to be non-rotatable with respect to the stator carrier.

### Claim 6 (depends on 1)

The wheel stator assembly according to claim 1, wherein
the inner race is made of iron, the inner race processed with surface hardening,
the thrust plate is made of iron, the thrust plate processed with surface hardening, and
the stator is made of aluminum by die casting.