Hydraulic composite bushing, flow channel for same, and method for forming flow channel
US12398777B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2020 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | Oct 7, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F13/1454
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic composite bushing, a flow channel for same, and a method for forming the flow channel, wherein the hydraulic composite bushing includes: a core shaft; a rubber member, arranged on an outer peripheral surface of the core shaft and provided with two recesses diametrically opposite to each other; two support rings arranged around the rubber member; and an outer casing press-fitted on the support rings from a radially outer side thereof through interference fit. The outer casing covers the recesses to form two hydraulic chambers for accommodating hydraulic fluid between the rubber member and the outer casing, and the support ring is provided with a flow channel for the hydraulic fluid, so that two hydraulic chambers are in communication with each other via the flow channel. A sealing device is provided at a connection between the outer casing and each of the recesses to seal each hydraulic chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.