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公开(公告)号：EP3067585A1
公开(公告)日：2016-09-14
申请号：EP14859911.1
申请日：2014-11-05
申请人： KYB Corporation
CPC分类号： B60G17/08 , B60G13/08 , B60G2202/24 , B60G2206/41 , B60G2500/10 , B60G2800/162 , F16F9/19 , F16F9/34 , F16F9/469 , F16F9/50 , F16F9/5126 , F16F2228/066
摘要： A shock absorber includes a cylinder, a piston that partitions the cylinder into an expansion-side chamber and a contraction-side chamber, a piston rod connected to the piston, a damping passage that allows the expansion-side chamber to communicate with the contraction-side chamber, a pressure chamber that communicates with the expansion-side chamber and the contraction-side chamber, a free piston that partitions the pressure chamber into an expansion-side pressure chamber and a contraction-side pressure chamber, a spring element configured to position the free piston in a neutral position with respect to the pressure chamber and exert a biasing force for suppressing a displacement of the free piston from the neutral position, and a damping force control unit provided in the damping passage, the damping force control unit being configured to change resistance to a flow of the hydraulic fluid passing therethrough.
摘要翻译： 减震器包括：气缸，将气缸分隔成膨胀侧室的活塞和收缩侧室;连接到活塞的活塞杆;允许膨胀侧室与收缩侧室连通的阻尼通道; 与膨胀侧室和收缩侧室连通的压力室，将压力室分隔成膨胀侧的压力室和收缩侧的压力室的自由活塞， 所述自由活塞相对于所述压力室处于中立位置，并且施加用于抑制所述自由活塞从所述中立位置的位移的偏压力，以及设置在所述阻尼通道中的阻尼力控制单元，所述阻尼力控制单元被配置 以改变对通过其中的液压流体的流动的阻力。
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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：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：EP3441640A1
公开(公告)日：2019-02-13
申请号：EP17779162.1
申请日：2017-04-05
申请人： KYB Corporation
摘要： A shock absorber (A1) includes: a cylinder (1); a piston (2) that is movably inserted into the cylinder (1) and defines an extension side chamber (L1) and a compression side chamber (L2) inside the cylinder (1); an extension side damping passage (2a) and a compression side damping passage (2b) that communicate the extension side chamber (L1) with the compression side chamber (L2); a pressure chamber (P) that communicates with the extension side chamber (L1) and the compression side chamber (L2); and an elastic member (7) that defines a first chamber (P1) communicating with the extension side chamber (L1) and a second chamber (P2) communicating with the compression side chamber (L2) inside the pressure chamber (P).
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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：EP2977643A1
公开(公告)日：2016-01-27
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.
摘要翻译： 本发明提供一种减震器，其包括：吸入通路（3），该吸入通路构造成仅允许从储存器（R）朝向压缩侧室（R2）的流动;整流通路（4），其被构造成仅允许来自压缩侧腔室 （R2）朝向伸长侧室（R1）的可动阀（V）以及仅允许从伸长侧室（R1）朝向贮存器（R）的流动的可变阀（V）。 作为与压缩侧室（R2）连通的压缩侧压力室的大室（16）和作为与伸长侧室（R2）连通的伸长侧压力室的外周室（17） R1）通过在用作壳体的底部构件（11）内可滑动地移动的自由活塞（5）分隔在减震器中。 自由活塞（5）的压缩侧受压面积（A1）大于伸长侧受压面积（B1）。 因此，即使在伸缩侧室（R1）和压缩侧室（R2）在收缩操作期间处于相同压力的单流缓冲器中，在从输入高频率的条件下减小了阻尼力 自由活塞（5）向下移动。
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公开(公告)号：EP3048327B1
公开(公告)日：2018-12-26
申请号：EP14845246.9
申请日：2014-09-18
申请人： KYB Corporation
CPC分类号： B60G13/08 , B60G2202/24 , B60G2206/41 , B60G2800/162 , F16F9/061 , F16F9/18 , F16F9/348 , F16F9/468 , F16F9/5126 , F16F9/516 , F16F2228/066
摘要： A shock absorber includes ; a free piston (9) that partitions the compression chamber (R3) into an expansion-side compression chamber (7) and a contraction-side compression chamber (8); a spring member (10) configured to generate a biasing force for the free piston (9); an expansion-side flow passage (5) that connects the expansion-side chamber (R1) with the expansion-side compression chamber (7); a contraction-side flow passage (6) that connects the contraction-side chamber (R2) with the contraction-side compression chamber (8); an expansion-side bypass valve (15) arranged closer to the expansion-side chamber (R1) side relatively to the piston (2) and provided in the expansion-side flow passage (5), the expansion-side bypass valve (15) being configured to admit only a flow directed from the expansion-side chamber (R1) to the expansion-side compression chamber (7) and generate resistance; a contraction-side bypass valve (16) provided in parallel with the expansion-side bypass valve (15) to admit only a flow directed from the expansion-side compression chamber (7) to the expansion-side chamber (R1) and generate resistance; an expansion-side elastic stopper (17) configured to stop the free piston (9) at an expansion-side stroke end; and a contraction-side elastic stopper (18) configured to stop the free piston (9) at a contraction-side stroke end.
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公开(公告)号：EP3048328A1
公开(公告)日：2016-07-27
申请号：EP14846535.4
申请日：2014-09-19
申请人： KYB Corporation
CPC分类号： B60G17/08 , B60G15/061 , F16F9/187 , F16F9/32 , F16F9/34 , F16F9/46 , F16F9/50 , F16F9/5126
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, 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), and an expansion-side spring element (16) configured to bias the expansion-side free piston to compress the first expansion-side pressure chamber. The contraction-side sensitive unit has a contraction-side actuating chamber that communicates with a contraction-side chamber and a reservoir (R), a contraction-side free piston (24) that partitions the contraction-side actuating chamber into a first contraction-side pressure chamber and a second contraction-side pressure chamber, and a contraction-side spring element (25) configured to bias the contraction-side free piston to compress the first contraction-side pressure chamber.
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），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）以及膨胀侧弹簧元件（16），所述膨胀侧弹簧元件构造成偏压膨胀侧自由活塞以压缩第一膨胀侧压力室。 压缩侧感应单元具有与压缩侧室和贮存器（R）连通的压缩侧促动室，将压缩侧促动室划分为第一收缩侧和第二收缩侧的自由活塞（24） 以及压缩侧弹簧元件（25），该压缩侧弹簧元件构造成偏压压缩侧自由活塞以压缩第一压缩侧压力室。
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公开(公告)号：EP3048327A1
公开(公告)日：2016-07-27
申请号：EP14845246.9
申请日：2014-09-18
申请人： Kyb Corporation
CPC分类号： B60G13/08 , B60G2202/24 , B60G2206/41 , B60G2800/162 , F16F9/061 , F16F9/18 , F16F9/348 , F16F9/468 , F16F9/5126 , F16F9/516 , F16F2228/066
摘要： A shock absorber includes ; a free piston (9) that partitions the compression chamber (R3) into an expansion-side compression chamber (7) and a contraction-side compression chamber (8); a spring member (10) configured to generate a biasing force for the free piston (9); an expansion-side flow passage (5) that connects the expansion-side chamber (R1) with the expansion-side compression chamber (7); a contraction-side flow passage (6) that connects the contraction-side chamber (R2) with the contraction-side compression chamber (8); an expansion-side bypass valve (15) arranged closer to the expansion-side chamber (R1) side relatively to the piston (2) and provided in the expansion-side flow passage (5), the expansion-side bypass valve (15) being configured to admit only a flow directed from the expansion-side chamber (R1) to the expansion-side compression chamber (7) and generate resistance; a contraction-side bypass valve (16) provided in parallel with the expansion-side bypass valve (15) to admit only a flow directed from the expansion-side compression chamber (7) to the expansion-side chamber (R1) and generate resistance; an expansion-side elastic stopper (17) configured to stop the free piston (9) at an expansion-side stroke end; and a contraction-side elastic stopper (18) configured to stop the free piston (9) at a contraction-side stroke end.
摘要翻译： 减震器包括： 自由活塞（9），其将压缩室（R3）分隔为膨胀侧压缩室（7）和压缩侧压缩室（8）。 弹簧构件（10），所述弹簧构件构造成产生用于所述自由活塞（9）的偏置力; 将伸侧室（R1）与伸侧压力室（7）连接的伸侧流路（5）。 将所述压侧室（R2）与所述压侧压缩室（8）连接的压侧流路（6） 相对于活塞（2）更靠近伸长侧室（R1）侧且设置于伸长侧流路（5），伸长侧旁通阀（15）的伸长侧旁通阀（15） 构成为仅容许从伸长侧室（R1）朝向伸长侧压缩室（7）的流动而产生阻力; 与膨胀侧旁通阀（15）平行设置，仅使从膨胀侧压缩室（7）流向膨胀侧室（R1）的流动产生阻力的压侧旁通阀（16） ; 伸长侧弹性止动件（17），其构造成在伸长侧行程末端处使自由活塞（9）停止; 以及压缩侧弹性止动件（18），该压缩侧弹性止动件（18）构造成在收缩侧行程末端处使自由活塞（9）停止。
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