The invention discloses a composite vane pump, comprising a pump body, the pump body is provided with a cavity, the cavity is provided with a rotor, the rotor is provided with the blade groove, the blade groove is provided with a vane, the mother blade is equipped with the cotyledon cotyledon groove, groove is provided with a rotor blade, terminal blade and cotyledon shaped groove into sub high pressure chamber. The blade and the other end of the blade groove to form a low pressure cavity, the sub leaf and leaf parent matching side along the length direction of the side of the removal of material is formed with chamfer chamfer, forming the side wall of the groove, cotyledon blade groove side wall pressure relief vent channel, channel and end pressure high pressure chamber is communicated with the other end of the low pressure cavity discharge the channel is communicated with the pressure. The beneficial effect of the invention is that the composite vane pump can save electricity by 20%, reduce the noise by more than 5dB, and prolong the service life by nearly twice.
【技术实现步骤摘要】
【技术保护点】
一种子母叶片泵，包括泵体，泵体内设有空腔，空腔内设有转子，转子上设有叶片槽，叶片槽内设有母叶片，母叶片上设有子叶槽，子叶槽内设有子叶片，子叶片的一端与子叶槽形成高压腔，子叶片的另一端与叶片槽形成低压腔，其特征在于：所述子叶片与母叶片相配侧面沿长度方向去除侧边的材料形成倒角，倒角与子叶槽侧壁、叶片槽侧壁形成泄压通道，泄压通道的一端与高压腔相通，泄压通道的另一端与低压腔相通。
【技术特征摘要】
【专利技术属性】
技术研发人员：宋仙友，
申请(专利权)人：浙江凯斯特液压有限公司，宋仙友，
类型：发明
国别省市：33
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