Fluid transmission device
US8627934B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2009 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Nov 3, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/145
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid transmission device includes a pre-damper (10) that transmits driving force received from a crankshaft (100) to a front cover (20) via first damper springs (14), a mechanism (30) that transmits the driving force transmitted to a pump (31) to a turbine (32) via hydraulic fluid, a piston member (40) that is disposed between the front cover (20) and the mechanism (30) and delivers the driving force to an output shaft (200), a dynamic damper (60) that connects the piston member (40) and the turbine (32) via second damper springs (63), a lock-up clutch (50) that enables the front cover (20) and the piston member (40) to engage with each other, a turbine clutch (70) that enables the turbine (32) and the piston member (40) to engage with each other, and a control device (80) that controls the lock-up clutch (50) and the turbine clutch (70).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.