To provide an electromagnetic shock absorber capable of avoiding enlargement while obtaining large thrust, and reducing weights and costs.SOLUTION: An electromagnetic shock absorber D includes a non-magnetic cylinder 1, a piston rod 2, an expansion side piston 3 partitioning an expansion side chamber R1 in the cylinder 1, a pressure side piston 4 partitioning a pressure side chamber R2 in the cylinder 1, a linear motor LM that has an armature E and a field F installed between the expansion side piston 3 and the pressure side piston 4 of the piston rod 2, gas filled in the expansion side chamber R1 and the pressure side chamber R2, a cooling passage CP facing the armature E, an expansion side restricting portion ER giving resistance to a flow of the gas from the expansion side chamber R1 toward the cooling passage CP, an expansion side straightening portion EC accepting only the flow of the gas from the cooling passage CP toward the expansion side chamber R1, a pressure side restricting portion CR giving resistance to the flow of the gas from the pressure side chamber R2 toward the cooling passage CP, and a pressure side straightening portion CC accepting only the flow of the gas from the cooling passage CP toward the pressure side chamber R2.SELECTED DRAWING: Figure 1

    【課題】大きな推力を得つつも大型化を回避でき、重量およびコストを低減できる電磁緩衝器の提供である。【解決手段】本発明の電磁緩衝器Dは、非磁性体のシリンダ1と、ピストンロッド2と、シリンダ1内に伸側室R1を区画する伸側ピストン3と、シリンダ1内に圧側室R2を区画する圧側ピストン4と、ピストンロッド2の伸側ピストン3と圧側ピストン4との間に装着される電機子Eと界磁Fとを有するリニアモータLMと、伸側室R1と圧側室R2とに充填される気体と、電機子Eに面する冷却通路CPと、伸側室R1から冷却通路CPに向かう気体の流れに抵抗を与える伸側制限部ERと、冷却通路CPから伸側室R1に向かう気体の流れのみを許容する伸側整流部ECと、圧側室R2から冷却通路CPに向かう気体の流れに抵抗を与える圧側制限部CRと、冷却通路CPから圧側室R2に向かう気体の流れのみを許容する圧側整流部CCとを備えている。【選択図】図1


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    Title :

    ELECTROMAGNETIC SHOCK ABSORBER


    Additional title:

    電磁緩衝器


    Contributors:

    Publication date :

    2020-08-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16F SPRINGS , Federn / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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