发明名称 |
Solenoid-operated driving apparatus and damping force control type hydraulic shock absorber using the same |
摘要 |
A damping force control type hydraulic shock absorber includes a plunger having a small-diameter main body portion slidably guided by a first fixed core made of a magnetic material. The plunger has a large-diameter attracted portion at an end thereof closer to a second fixed core. The diameter (D2) of the attracted portion is set larger than the diameter (D1) of the main body portion (D2>D1), thereby increasing the area of the mutually opposing surfaces of the attracted portion and the second fixed core. Accordingly, attraction force acting on the attracted portion can be increased without reducing the magnetic flux density at the main body portion.
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申请公布号 |
US6729446(B2) |
申请公布日期 |
2004.05.04 |
申请号 |
US20010840834 |
申请日期 |
2001.04.25 |
申请人 |
TOKICO, LTD. |
发明人 |
SAKAI HIROSHI;NEZU TAKASHI |
分类号 |
F16K31/06;F16F9/46;(IPC1-7):F16F9/49;B60T8/36 |
主分类号 |
F16K31/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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