PROBLEM TO BE SOLVED: To make a pump device into a multi-cylinder type, while avoiding increase in size.SOLUTION: A pump device includes a plurality of cylinder holes 814 arranged around a drive shaft 54. In the pump device, a discharge valve 88 is arranged between cylinder holes 814 adjacent in the rotation direction of the drive shaft 54, and a suction valve is arranged at a position deviating in an axial direction of the drive shaft 54 with respect to the cylinder hole 814 and the discharge valve 88. Consequently, even without increasing the projection area of a pump housing 81 in a view along the axial line of the drive shaft 54, interference between the suction valve and the discharge valve 88 can be avoided.SELECTED DRAWING: Figure 3
【課題】大型化を回避しつつ、ポンプ装置の多気筒化を図る。【解決手段】駆動軸54の周りに複数のシリンダ孔814を配置したポンプ装置において、吐出弁88は、駆動軸54の回転方向に隣接するシリンダ孔814間に配置し、吸入弁は、シリンダ孔814および吐出弁88に対して駆動軸54の軸方向にずれた位置に配置することにより、駆動軸54の軸線に沿って見たときのポンプハウジング81の投影面積を大きくしなくても、吸入弁と吐出弁88の干渉を避けることができる。【選択図】図3
PUMP DEVICE AND VEHICULAR BRAKE DEVICE INCLUDING THE SAME
ポンプ装置およびこれを備えた車両用ブレーキ装置
2017-02-02
Patent
Electronic Resource
Japanese
PUMP DEVICE AND VEHICULAR BRAKE DEVICE INCLUDING THE SAME
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