Invention Grant
- Patent Title: Hydraulic bushing with internal snubber
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Application No.: US17126680Application Date: 2020-12-18
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Publication No.: US11378152B1Publication Date: 2022-07-05
- Inventor: Zoren E. Gaspar , Scott W. Rawlings
- Applicant: The Pullman Company
- Applicant Address: US OH Milan
- Assignee: The Pullman Company
- Current Assignee: The Pullman Company
- Current Assignee Address: US OH Milan
- Agency: Harness, Dickey & Pierce, P.L.C.
- Main IPC: F16F13/14
- IPC: F16F13/14

Abstract:
A hydraulic bushing assembly comprises an inner tube, a travel limiter surrounding the inner tube, a first intermediate insert, a second intermediate insert spaced apart from the first intermediate insert, and an elastomeric bushing disposed around the inner tube and encapsulating the first intermediate insert and the second intermediate insert. The elastomeric bushing at least partially encapsulates the travel limiter such that a portion of the elastomeric bushing is positioned between the travel limiter and the inner tube. First and second snubbers limit displacement of the travel limiter and define first and second fluid chamber within the elastomeric bushing. A fluid passageway defined by the elastomeric bushing and an outer tube extends between the first and second fluid chambers, wherein relative movement between the inner tube and the outer tube causes fluid transfer between the first fluid chamber and the second fluid chamber.
Public/Granted literature
- US20220196107A1 Hydraulic Bushing with Internal Snubber Public/Granted day:2022-06-23
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