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发明名称
高、低压双联手动油泵
摘要
一种液压高、低双联手动油泵,其特征在于:吸排油阀2即为低压泵的排油阀又为高压泵的吸油阀。简化了结构,提高了泵的可靠性。用卸荷溢流阀4,控制低压泵的压力,卸荷溢流阀4的控制油引自总排油阀1的出油口。实现了当压力低于卸荷溢流阀4调定压力P1时,双泵共同排油,压力高于P1时,卸荷溢流阀4开启,低压泵油液直接无载回油,低压泵部分不消耗操作者的手摇力。扩大了泵的性能参数的设计范围。
申请公布号
CN2378549Y
申请公布日期
2000.05.17
申请号
CN99215386.7
申请日期
1999.07.02
申请人
靳宗保
发明人
靳宗保
分类号
F04B9/14
主分类号
F04B9/14
代理机构
代理人
主权项
1.一种高、低压双联手动油泵,由总排油阀1、吸排油阀2、总吸油阀3、卸荷溢流阀4泵体6及双联柱塞7等组成,其特征在于:总吸油阀3的进油口连接油箱,出油口与吸排油阀2的进油口、低压泵腔9及卸荷溢流阀4相连,吸排油阀2即作低压泵的排油阀又作高压泵吸油阀,它的出油口与高压泵腔10,总排油阀1的进油口及高压溢流阀5相连,用卸荷溢流阀4控制低压泵的压力,它的控制油引自总排油阀1的出油口。
地址
253006山东省德州市迎宾路德州市第二职业中专
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