Torque converter system for a vehicle

Patent metadata

Field	Value
Publication number	US-10697538-B2
Application number	US-201816162651-A
Country	US
Kind code	B2
Filing date	Oct 17, 2018
Priority date	Aug 22, 2018
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

A torque converter system of a vehicle for delivering an input torque to a transmission may include a front cover of a torque converter receiving the input torque through a torque receiving shaft, an impeller of the torque converter receiving the input torque through the front cover, a turbine of the torque converter disposed opposed to and coaxially with the impeller and rotated by an operation fluid supplied from the impeller thereby driving a transmission input shaft, a reactor of the torque converter disposed between the impeller and the turbine and redirecting the operation fluid from the turbine toward the impeller, and a lock-up clutch disposed inside a transmission to selectively connecting the front cover and the turbine.

First claim

What is claimed is:

1. A torque converter system of a vehicle for delivering an input torque to a transmission, the torque converter system comprising:
a front cover of a torque converter receiving the input torque through a torque receiving shaft connected to the front cover;
an impeller of the torque converter receiving the input torque through the front cover;
a turbine of the torque converter disposed opposite to and coaxially with the impeller and rotated by an operation fluid supplied from the impeller for driving a transmission input shaft;
a reactor of the torque converter disposed between the impeller and the turbine and redirecting the operation fluid from the turbine toward the impeller; and
a lock-up clutch disposed inside the transmission to selectively connecting the front cover and the turbine,
wherein the lock-up clutch is disposed at an axially opposite side of a transmission housing with respect to the front cover, the impeller, and the turbine.

2. The torque converter system of claim 1 ,
wherein the lock-up clutch is disposed between a center shaft of the front cover and a torque delivery shaft coupled to the turbine and fixedly connected to the transmission input shaft, and
wherein the center shaft is connected to the torque receiving shaft, elongates into an internal of the transmission, and is connected to the lock-up clutch.

3. The torque converter system of claim 2 , wherein an impact absorbing device is disposed on the torque delivery shaft of the turbine.

4. The torque converter system of claim 3 , wherein the impact absorbing device is disposed in an internal space of the turbine.

5. The torque converter system of claim 2 , wherein an impact absorbing device is disposed on the torque receiving shaft.

6. The torque converter system of claim 5 , wherein a motor/generator is disposed on the torque receiving shaft at a location between the impact absorbing device and the front cover.

7. The torque converter system of claim 6 , wherein a rotor of the motor/generator is selectively connectable to the torque receiving shaft via a clutch mounted on the torque receiving shaft.

8. The torque converter system of claim 1 ,
wherein the center shaft is coaxially disposed inside the torque delivery shaft,
wherein the torque delivery shaft is coaxially disposed inside a fixed shaft connecting the reactor and the transmission housing, and
wherein the fixed shaft is coaxially disposed inside a pump drive hub formed with the impeller.

9. The torque converter system of claim 1 ,
wherein the impeller is formed radially outermost within the front cover;
wherein the turbine is disposed radially internal to the impeller in a direction facing the impeller; and
wherein the reactor is disposed between the impeller and the turbine at a transmission side of the torque converter.

10. The torque converter system of claim 1 , wherein the reactor is connected to a fixed shaft fixed to the transmission housing.

11. The torque converter system of claim 10 , wherein a one-way clutch is disposed on the fixed shaft.

12. The torque converter system of claim 1 , wherein the front cover is connected to a ring gear.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Shin Yong Uk
• Hwang Seong Wook
• Chae Minho
• Kim Chon Ok
• KWON Hyun Sik
• Kwon Sun Sung
• Ji Seongwook

Classifications

• F16H2045/0221

  with damping means · CPC title

• F16H45/02 Primary

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

• F16H41/24

  Details · CPC title

• Y02T10/62

  Hybrid vehicles · CPC title

• F16H61/14 Primary

  Control of torque converter lock-up clutches · CPC title