Method of forming, assembling, and filling a viscous damper
US4914799A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 12, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Oct 12, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49893
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A clutch plate assembly (24) for a vehicle driveline includes a spring damping mechanism disposed in parallel with a viscous shear damper mechanism (30) for damping spring recoil. The spring damping mechanism includes a set of pairs of relatively high rate helical compression springs (34,36) for transmitting torque and attenuating torsionals when a transmission input shaft (22) is connected to a load and a set of relatively low rate helical compression springs (38) connected in series with the high rate springs (34,36) for attenuating torsionals when the shaft (22) is not connected to a load. The viscous damper mechanism includes an annular housing (48) having first and second radially extending sidewalls (52,54) defining a compartment (48a) having a clutch assembly (50) disposed therein for viscous clutching coaction via a viscous shear oil. An inner member (58) of the clutch assembly (50) includes a dynamic seal assembly (66 or 72) molded integral therewith for sealing the inner extent of the compartment (48a). The inner extent of the housing includes a plurality of fasteners (56e) structurally interconnecting the inner extent of the sidewalls (52,54) to prevent relative axial mo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.