Passive mechanical damping system for a truck
US4998592A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1990 |
| Grant date | Mar 12, 1991 |
| Priority date | — |
| Expiry date | Jun 12, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D33/0604
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A passive mechanical damping system, particularly for the suspension of a cab from a truck frame, provides a minimal level of damping force to impede the free movement of a truck cab about its nominal height and also provides higher levels, progressively or in discrete steps, of damping as the movement of the cab exceeds preset limits of displacement defined by a lost motion connection to provide maximum vibration isolation while providing additional damping to control cab movement when the preset displacement limits are exceeded. The system provides a low rate viscous damper continuously connected between the cab and the truck frame and a high rate viscous damper connected therebetween through a lost motion connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.