Hydraulic composite bushing, and sealing method for same
US12379012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2020 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Aug 6, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2204/41
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic composite bushing includes: a core shaft, with a continuously spiral fluid channel groove; a rubber member, arranged around the core shaft, and having two recesses formed radially outside of the fluid channel groove and radially opposite to each other; a support ring arranged around the rubber member; an outer cover pressing on the support ring from a radially outer side thereof; and a sealing device provided at each end of a fluid channel tube arranged within the fluid channel groove. Two ends of the fluid channel tube pass through the rubber member radially to extend into two hydraulic chambers respectively, with the hydraulic chambers in communication with each other through the fluid channel tube. One end of the sealing device is arranged inside the flow channel groove and the other end thereof passes through the rubber member to extend into the hydraulic chambers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.