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公开(公告)号：EP2977643B1
公开(公告)日：2018-09-26
申请号：EP14771011.5
申请日：2014-03-20
申请人： KYB Corporation
CPC分类号： B60G15/061 , B60G13/08 , B60G17/08 , B60G2202/12 , B60G2202/24 , B60G2204/424 , B60G2204/45 , B60G2600/182 , B60G2600/44 , F16F9/187 , F16F9/3214 , F16F9/34 , F16F9/5126 , F16F9/5165 , F16F9/53 , F16F13/007
摘要： A shock absorber includes a suction passage (3) configured to permit only a flow from a reservoir (R) toward a compression-side chamber (R2), a rectification passage (4) configured to permit only a flow from the compression-side chamber (R2) toward a extension-side chamber (R1), and a variable valve (V) configured to permit only a flow from the extension-side chamber (R1) toward the reservoir (R). A large chamber (16) serving as a compression-side pressure chamber that communicates with the compression-side chamber (R2) and an outer periphery chamber (17) serving as a extension-side pressure chamber that communicates with the extension-side chamber (R1) are partitioned in the shock absorber by a free piston (5) that moves slidably within a bottom member (11) serving as a housing. A compression-side pressure-receiving area (A1) of the free piston (5) is larger than an extension-side pressure-receiving area (B1). Therefore, even in the uniflow shock absorber in which the extension-side chamber (R1) and the compression-side chamber (R2) are at equal pressures during the contraction operation, the damping force is reduced under conditions in which high frequency is input since the free piston (5) moves downward.
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公开(公告)号：EP2487384B1
公开(公告)日：2018-09-19
申请号：EP10846574.1
申请日：2010-09-03
申请人： Showa Corporation
发明人： MURAKAMI, Yosuke
CPC分类号： F16F9/187
摘要： In a hydraulic shock absorber 10 in which a piston rod 14 is inserted into an oil chamber 27 of a cylinder 13 provided in a damper case 11, and a damping force generating device 40 is provided between a piston side oil chamber 27A and a rod side oil chamber 27B of the cylinder 13, an outer flow path 13C communicating the piston side oil chamber 27A and the rod side oil chamber 27B is provided around the oil chamber 27 of the cylinder 13 in the damper case 11, and an oil reservoir chamber 32 is provided around the oil chamber 27 of the cylinder 13 in the damper case 11 and the outer flow path 13C.
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公开(公告)号：EP3048329A1
公开(公告)日：2016-07-27
申请号：EP14846681.6
申请日：2014-09-18
申请人： Kyb Corporation
CPC分类号： B60G17/08 , B60G13/08 , F16F9/061 , F16F9/187 , F16F9/19 , F16F9/34 , F16F9/46 , F16F9/50 , F16F9/5126 , F16F9/532 , F16F9/535
摘要： A shock absorber includes at least one of an expansion-side sensitive unit and a contraction-side sensitive unit. The expansion-side sensitive unit has an expansion-side actuating chamber (E) that communicates with an expansion-side chamber and a contraction-side chamber, and an expansion-side free piston (15) that partitions the expansion-side actuating chamber into a first expansion-side pressure chamber (E1) and a second expansion-side pressure chamber (E2). The contraction-side sensitive unit has a contraction-side actuating chamber (C) that communicates with a contraction-side chamber and a reservoir (R), and a contraction-side free piston (24) that partitions the contraction-side actuating chamber into a first contraction-side pressure chamber (C1) and a second contraction-side pressure chamber (C2).
摘要翻译： 减震器包括伸展侧敏感单元和收缩侧敏感单元中的至少一个。 伸侧感应单元具有与伸长侧室和收缩侧室连通的伸侧动作室（E）和将伸侧动作室分隔成伸缩侧动作室 第一膨胀侧压力室（E1）和第二膨胀侧压力室（E2）。 压缩侧感应单元具有与压缩侧腔室和储存器（R）连通的压缩侧促动腔室（C）和将压缩侧促动腔室分隔成压缩侧腔室 第一压缩侧压力室（C1）和第二压缩侧压力室（C2）。
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公开(公告)号：EP2487384A4
公开(公告)日：2015-03-25
申请号：EP10846574
申请日：2010-09-03
申请人： SHOWA CORP
发明人： MURAKAMI YOSUKE
CPC分类号： F16F9/187
摘要： In a hydraulic shock absorber 10 in which a piston rod 14 is inserted into an oil chamber 27 of a cylinder 13 provided in a damper case 11, and a damping force generating device 40 is provided between a piston side oil chamber 27A and a rod side oil chamber 27B of the cylinder 13, an outer flow path 13C communicating the piston side oil chamber 27A and the rod side oil chamber 27B is provided around the oil chamber 27 of the cylinder 13 in the damper case 11, and an oil reservoir chamber 32 is provided around the oil chamber 27 of the cylinder 13 in the damper case 11 and the outer flow path 13C.
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公开(公告)号：EP2746616A2
公开(公告)日：2014-06-25
申请号：EP13198349.6
申请日：2013-12-19
发明人： Fukuda, Hiromi
摘要： A shock absorber includes: a cylinder body including a cylinder part having a cylindrical shape, a cap part that covers an opening of the cylinder part at one end thereof, and a head part that covers an opening of the cylinder part at the other end thereof, the cylinder body having an internal space defined by the cylinder part, the cap part, and the head part; a piston part that partitions the internal space of the cylinder body such that the cylinder body has a first chamber and a second chamber, the first chamber being configured to have a high pressure at a time of extension of the shock absorber, the second chamber being configured to have a high pressure at a time of compression of the shock absorber; a piston rod part fixed to the piston part, the piston rod part extending through the other end of the cylinder part to the outside of the cylinder body; and a base valve part arranged in the internal space of the cylinder body, the base valve part being positioned at a side close to the cap part relative to the piston part. The piston part is provided with an extension damping valve for generating an extension damping force, the extension damping valve being configured to permit a working fluid flowing from the first chamber toward the second chamber to flow only in a single direction. The base valve part is provided with a compression damping valve for generating a compression damping force, the compression damping valve being configured to permit a working fluid flowing from the second chamber toward the cap-part side of the base valve part to flow only in a single direction. A first check valve is not provided in the piston part but provided outside the internal space of the cylinder body, the first check valve being configured to permit a working fluid flowing into the first chamber in a compression stroke to flow only in a single direction. A second check valve is provided in at least one of the base valve part and the outside of the internal space of the cylinder body, the second check valve being configured to permit a working fluid flowing into the second chamber in an extension stroke to flow only in a single direction.
摘要翻译： 减震器包括：缸体，其包括具有圆筒形状的缸体部分，在其一端覆盖气缸部分的开口的盖部分和在其另一端覆盖气缸部分的开口的头部部分 所述缸体具有由所述缸部，所述盖部和所述头部限定的内部空间; 活塞部，其分隔所述缸体的内部空间，使得所述缸体具有第一室和第二室，所述第一室被配置为在所述减震器延伸时具有高压力，所述第二室为 构造成在减震器的压缩时具有高压力; 活塞杆部分固定到活塞部分，活塞杆部分延伸穿过气缸部分的另一端到气缸体的外部; 以及设置在所述缸体的内部空间中的基阀部，所述基阀部相对于所述活塞部位于靠近所述盖部的一侧。 活塞部分设置有用于产生延伸阻尼力的延伸阻尼阀，该延伸阻尼阀构造成允许从第一室朝向第二室流动的工作流体仅在单个方向上流动。 基阀部设置有用于产生压缩阻尼力的压缩阻尼阀，压缩阻尼阀构造成允许从第二室朝向基阀部的盖部侧流动的工作流体仅在 单向。 第一止回阀不设置在活塞部分中，而是设置在缸体的内部空间的外侧，第一止回阀构造成允许在压缩行程中流入第一室的工作流体仅在单个方向上流动。 第二止回阀设置在缸体的内部空间的基阀部分和外部的至少一个中，第二止回阀构造成允许在延伸冲程中流入第二室的工作流体仅流动 在单一方向。
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公开(公告)号：EP2977642B1
公开(公告)日：2018-10-10
申请号：EP14768195.1
申请日：2014-03-20
申请人： KYB Corporation
CPC分类号： F16F9/5165 , F16F9/061 , F16F9/187 , F16F9/34 , F16F9/5126
摘要： A shock absorber (D1) includes a suction passage (3) that only allows a flow from a reservoir (R) towards a pressure side chamber (R2), a rectifying passage (4) that only allows a flow from the pressure side chamber (R2) towards an expansion side chamber (R1), and a damping force variable valve (V) that only allows a flow from the expansion side chamber (R1) towards the reservoir (R). A large chamber (16) serving as a pressure-side pressure chamber, which communicates with the pressure side chamber (R2), and an outer peripheral chamber (17) serving as an expansion-side pressure chamber, which communicates with the expansion side chamber (R1), are provided so as to sandwich a free piston (5) that slidably moves within a bottom member (11) serving as a housing forming a pressure chamber (14). Because a pressure-side pressure-receiving area (A1) of the free piston (5) is larger than an expansion-side pressure-receiving area (B1), at the time of a contraction operation in which a piston (2) moves downward, the free piston (5) can move downward even in a uniflow-type shock absorber in which pressure in the expansion side chamber (R1) becomes equal to that in the pressure side chamber (R2), and thereby, damping force can be reduced at the time of input of high-frequency vibration.
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公开(公告)号：EP3052327B1
公开(公告)日：2018-07-18
申请号：EP14776636.4
申请日：2014-09-25
申请人： GRAMMER AG
发明人： HALLER, Erwin
CPC分类号： B61D33/0078 , B60G13/00 , B60G13/08 , B60G17/08 , B60G99/002 , B60G2202/24 , B60G2202/413 , B60G2202/416 , B60G2500/10 , B60G2500/11 , B60G2500/30 , B60N2/505 , B60N2/522 , B60N2/527 , B61F5/308 , B61F5/50 , B62D33/0604 , F16F9/187 , F16F9/46
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