Invention Grant
- Patent Title: Hydraulic suspension system for a vehicle, a vehicle being provided with such a system and a method for damping an anti-roll function of a vehicle
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Application No.: US15575401Application Date: 2015-06-05
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Publication No.: US10343481B2Publication Date: 2019-07-09
- Inventor: Vilhelm Fredriksson
- Applicant: VOLVO CONSTRUCTION EQUIPMENT AB
- Applicant Address: SE Eskilstuna
- Assignee: Volvo Construction Equipment AB
- Current Assignee: Volvo Construction Equipment AB
- Current Assignee Address: SE Eskilstuna
- Agency: WRB-IP LLP
- International Application: PCT/SE2015/050657 WO 20150605
- International Announcement: WO2016/195560 WO 20161208
- Main IPC: B60G17/04
- IPC: B60G17/04 ; B60G21/073 ; B60G9/00 ; B60G21/02

Abstract:
A hydraulic suspension system is provided for a vehicle, the system including at least a first hydraulic cylinder and a second hydraulic cylinder, each of the hydraulic cylinders including a first chamber and a second chamber, at least four hydraulic accumulators, and at least a first and a second fluid communication path. The first chamber of the first hydraulic cylinder, and the second chamber of the second hydraulic cylinder are in fluid communication with each other by means of the first fluid communication path, and the first chamber of the second hydraulic cylinder and the second chamber of the first hydraulic cylinder are in fluid communication with each other by means of the second fluid communication path, wherein a first hydraulic accumulator is in fluid communication with the first fluid communication path by means of a first accumulator fluid communication path and a second hydraulic accumulator is in fluid communication with the first fluid communication path by means of a second accumulator fluid communication path, wherein a connection point between the first accumulator fluid communication path and the first fluid communication path is distanced from a connection point between the second accumulator fluid communication path and the first fluid communication path, and wherein a third hydraulic accumulator is in fluid communication with the second fluid communication path by means of a third accumulator fluid communication path and a fourth hydraulic accumulator is in fluid communication with the second fluid communication path by means of a fourth accumulator fluid communication path, wherein a connection point between the third accumulator fluid communication path and the second fluid communication path is distanced from a connection point between the fourth accumulator fluid communication path and the second fluid communication path.
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