发明名称 |
Drain mechanism for hydraulic power transmission joint |
摘要 |
A drain plug is disposed in a drain hole through which oil is discharged from a high-pressure chamber formed in a valve block. Within the drain plug there is arranged a drain pin that slidably opens and closes the drain hole. A fixed pin serves to restrict a displacement of the drain pin. A thermo-switch is located within a low-pressure chamber behind the drain pin in such a manner as to be urged by a return spring so that the drain pin is pressed to keep the drain hole closed. When a predetermined temperature is reached, the thermo-switch allows its head pin to extend, with the reaction force as a result of abutment of the head pin against the fixed pin causing the thermo-switch to retreat to release the pressing force exerted on the drain pin. In consequence, the drain pin is displaced by a high pressure toward the direction in which the drain hole is opened, allowing high-pressure oil to be drained into the low pressure side.
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申请公布号 |
US6336539(B1) |
申请公布日期 |
2002.01.08 |
申请号 |
US20000571357 |
申请日期 |
2000.05.15 |
申请人 |
FUJIUNIVANCE CO.;NISSAN MOTOR CO., LTD. |
发明人 |
NAKANO HIROYUKI;SHIMADA KAZUHISA;KATO TADAHIKO;TAKASAKI TOSHIHARU;KUSUKAWA HIROTAKA;MURATA SHIGEO |
分类号 |
F16D31/02;F16D43/284;(IPC1-7):F16D31/02 |
主分类号 |
F16D31/02 |
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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