負圧ポンプ,申请号JP20110285675-传众专利搜索

負圧ポンプ

申请公布号：JP6074139(B2)

申请号：JP20110285675

申请日期：2011.12.27

申请公布日期：2017.02.01

申请人：

オートリブ日信ブレーキシステムジャパン株式会社

发明人：下園責平;梶谷高

分类号：F04B37/16;F04C25/02

主分类号：F04B37/16

摘要：PROBLEM TO BE SOLVED: To provide a negative pressure pump capable of suppressing wear debris from being sucked into a motor.SOLUTION: On one side face 34 of a body part 30, a respiratory hole 121 is provided at a position away from an exhaust path 104 for supplying air from the vicinity of a motor shaft 72 to a motor. The respiratory hole 121 is provided for supplying air to the motor to prevent the inside of the motor from becoming vacuum. Since the respiratory hole is disposed in a portion away from the exhaust passage, exhaust gas containing wear debris is prevented from immediately reaching the respiratory hole and wear debris can be suppressed from being sucked into the motor. As a result, durability of the motor can be improved.