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公开(公告)号：EP3919774A1
公开(公告)日：2021-12-08
申请号：EP20860698.8
申请日：2020-09-04
发明人： LIU, Guijie , DING, Xingwu , BU, Jiling , WANG, Yongguan , XIA, Zhangyang
IPC分类号： F16F13/26
摘要： A chamber device for a liquid composite spring, comprising: an outer wall (1); an upper liquid chamber (11) formed in an upper portion of the outer wall (1), the upper liquid chamber (11) being filled with liquid; and a lower liquid chamber (12) formed in a lower portion of the outer wall (1), the lower liquid chamber (12) being filled with liquid and in communication with the upper liquid chamber (11). A bottom of the outer wall (1) is provided with a sealing member (2) for sealing the lower liquid chamber (12). The sealing member (2) is deformable, so that the lower liquid chamber (12) is formed as a flexible chamber. The chamber device for the liquid composite spring has a rigid outer wall and a flexible sealing member. The volume and shape of the lower liquid chamber can be changed through the flexible sealing member, so that the lower liquid chamber is formed as a flexible chamber.
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公开(公告)号：EP4112970A1
公开(公告)日：2023-01-04
申请号：EP20937391.9
申请日：2020-09-30
发明人： DING, Xingwu , BU, Jiling , CHENG, Haitao , LIU, Wensong , ZOU, Bo , LUO, Jun , WANG, Feng , ZOU, Jicao , XIA, Zhangyang
摘要： Disclosed herewith a hydraulic composite bushing (100, 200) and a sealing method for same. The hydraulic composite bushing (100, 200) comprises: a core shaft (10, 210), with a continuously spiral fluid channel groove (11, 211) formed on an outer surface thereof; a rubber member (20, 220), arranged around the core shaft (10, 210), and having two recesses formed radially outside of the fluid channel groove (11, 211) and radially opposite to each other; a support ring (30, 230) arranged around the rubber member (20, 220), covering the fluid channel groove (11, 211) to form hydraulic chambers (40, 240) for accommodating hydraulic fluid; an outer cover (50, 250) pressing on the support ring (30, 230) from a radially outer side thereof; and a sealing device (80) provided at each end of a fluid channel tube (60, 260) arranged within the fluid channel groove (11, 211). Two ends of the fluid channel tube (60, 260) pass through the rubber member (20, 220) radially to extend into two hydraulic chambers (40, 240) respectively, so that said two hydraulic chambers (40, 240) are in communication with each other through the fluid channel tube (60, 260). One end of the sealing device (80) is arranged inside the flow channel groove (11, 211) and the other end thereof passes through the rubber member (20, 220) to extend into the hydraulic chambers, thus forming a seal between the flow channel pipe (60, 260) and the flow channel groove (11, 211).
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3.发明公开
公开(公告)号：EP4160046A1
公开(公告)日：2023-04-05
申请号：EP20937798.5
申请日：2020-09-30
发明人： DING, Xingwu , BU, Jiling , CHENG, Haitao , ZOU, Bo , XIA, Zhangyang , ZOU, Jicao
摘要： Disclosed herewith a hydraulic composite bushing (100), a flow channel (70) for same, and a method for forming the flow channel (70). The hydraulic composite bushing comprises: a core shaft (10); a rubber member (20), arranged on an outer peripheral surface of the core shaft (10) and provided with two recesses diametrically opposite to each other; two support rings (30) arranged around the rubber member and spaced apart from each other; and an outer casing (40) press-fitted on the support rings (30) from a radially outer side thereof through interference fit. The outer casing (40) covers the recesses to form two hydraulic chambers (21) for accommodating hydraulic fluid between the rubber member (20) and the outer casing (40), and the support ring (30) is provided with a flow channel (70) for the hydraulic fluid, so that two hydraulic chambers (21) are in communication with each other via the flow channel (70). A sealing device is provided at a connection between the outer casing and each of the recesses to seal each hydraulic chamber (21). The hydraulic composite bushing (100) can effectively improve the overall sealing effect of the hydraulic chambers (21), and remarkably improve the performance of stiffness adjustment of the hydraulic composite bushing (100).
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公开(公告)号：EP3919773A1
公开(公告)日：2021-12-08
申请号：EP20860415.7
申请日：2020-09-04
发明人： BU, Jiling , WANG, Yongguan , LIU, Guijie , DING, Xingwu , XIA, Zhangyang
摘要： A liquid composite spring for vehicles, in particular rail vehicles, includes: a core shaft (1); an outer sleeve (2) arranged on an upper portion of the core shaft (1), the upper portion of the core shaft (1) being located inside the outer sleeve (2) while the lower portion of the core shaft (1) being located outside the outer sleeve (2); an upper liquid chamber (4) formed in an upper portion of the outer sleeve (2), a lower end of the upper liquid chamber (4) being connected to a top of the core shaft (1); and a lower liquid chamber (5) formed in a lower portion of outer sleeve (2), the lower liquid chamber (5) and the upper liquid chamber (4) being connected with each other through a metal-rubber main spring (3). At least one flow channel body (31) is provided in the metal-rubber main spring (3), so that liquid in the upper liquid chamber (4) and liquid in the lower liquid chamber (5) are communicated with each other through the flow channel body (31). The liquid composite spring has the function of reducing vibration, and can provide variable rigidness and dampening effect.
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公开(公告)号：EP4027037A1
公开(公告)日：2022-07-13
申请号：EP20860133.6
申请日：2020-09-04
发明人： DING, Xingwu , BU, Jiling , LI, Yimeng , LIU, Guijie , WANG, Feng , XIA, Zhangyang
IPC分类号： F16F13/16
摘要： Disclosed herewith are a liquid composite spring and a method for adjusting stiffness and damping property thereof. The liquid composite spring is used in vehicles, in particular rail vehicles, and includes an outer sleeve (1); a core shaft (2) arranged around an upper portion of the outer sleeve (1), wherein an upper portion of the core shaft is located inside the outer sleeve (2), while a lower portion thereof extends out of the outer sleeve (2); an upper liquid chamber (3) formed in an upper space inside the outer sleeve (2) and having a lower portion connected to a top end of the core shaft (1); and a lower liquid chamber (4) formed in a lower space inside the outer sleeve (2) and connected with the core shaft (1). The core shaft (1) has a damping flow channel (11) arranged therein, for communicating liquid in the upper liquid chamber (3) with liquid in the lower liquid chamber (4). The liquid composite spring can provide vibration reducing effect, and also change stiffness and damping effect.
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公开(公告)号：EP4012218A1
公开(公告)日：2022-06-15
申请号：EP20859829.2
申请日：2020-09-04
发明人： WANG, Yongguan , LIU, Guijie , DING, Xingwu , XIA, Zhangyang , BU, Jiling
IPC分类号： F16F13/16
摘要： A method for sealing a liquid composite spring, comprising: step 1, placing a sleeve-shaped outer wall (1) around an upper portion of a core shaft (3), and forming an upper liquid chamber (11) and a lower liquid chamber (12) inside the outer wall (1); and step 2, arranging a sealing member (2) at a bottom of the outer wall (1) to seal the lower liquid chamber (12), wherein the sealing member (2) is made of flexible material. The liquid composite spring is provided with the rigid outer wall and the flexible sealing member. The volume and shape of the lower liquid chamber can be changed through the flexible sealing member, so that the chamber is formed as a flexible chamber.
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