发明名称 |
OPERATING SPEED CHANGE-OVER DEVICE |
摘要 |
An operating speed change-over device is equipped with an automatic speed change-over valve which opens and closes a pilot fluid line that connects a pilot port of a capacity change-over valve of a capacity-variable hydraulic motor to a pilot pump. The automatic speed change-over valve has one pilot port that is connected to a pressurized fluid feed line leading to the hydraulic motor and has another pilot port connected to the return fluid line of the hydraulic motor. The automatic speed change-over valve is changed over by an effective differential pressure between the two fluid lines. |
申请公布号 |
CA2037279(C) |
申请公布日期 |
1994.03.08 |
申请号 |
CA19912037279 |
申请日期 |
1991.02.28 |
申请人 |
SHIN CATERPILLAR MITSUBISHI LTD. |
发明人 |
KAWANAKA, MASANOBU;KONDO, YOUICHI;TABATA, JUNICHI;ONDA, KIMIMASA |
分类号 |
E02F9/22;B60K17/10;F15B11/02;F15B11/17 |
主分类号 |
E02F9/22 |
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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