发明名称 |
HST Cooling Circuit |
摘要 |
There are provided: an HST hydraulic circuit that is formed through a closed circuit connection of a variable displacement hydraulic pump 2 and first and second variable displacement hydraulic motors 3 and 4; a charge pump 6 that replenishes the HST hydraulic circuit with hydraulic oil; a cooling circuit through which an excess of the hydraulic oil that has been replenished from the charge pump 6 to the HST hydraulic circuit is returned to a reservoir through the hydraulic pump 2, the first hydraulic motor 3, and the second hydraulic motor 4; a hydraulic source 7 that supplies hydraulic oil to an hydraulic device other than the first and second hydraulic motors; and a merge circuit through which a portion of hydraulic oil from the hydraulic source 7 is merged into an intermediate oil line 22 that lies downstream of the first hydraulic motor 3 and upstream of the second hydraulic motor 4 in the cooling circuit.
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申请公布号 |
US2010095664(A1) |
申请公布日期 |
2010.04.22 |
申请号 |
US20080530930 |
申请日期 |
2008.03.12 |
申请人 |
TCM CORPORATION;HITACHI CONSTRUCTION MACHINERY CO., LTD |
发明人 |
HYODO KOJI;ISHIDA KAZUO;TAKEYAMA TSUYOSHI;AOKI TADAYOSHI;KATSURAGI TAKEHIKO;KAWAHARA SHOROKU |
分类号 |
F15B13/00;F15B21/04;F16H61/40;F16H61/4139;F16H61/4165;F16H61/448 |
主分类号 |
F15B13/00 |
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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