| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high-pressure pump, in which deformation of a member constituting a valve seat can be suppressed. <P>SOLUTION: On a wall surface on an opposite side from a first valve seat forming part 63 of a second valve seat forming part 64 of a valve body 60, a discharge valve seat 66 is formed. A holder 81 has a holder tube part 82, a holder bottom part 83, a holder flange part 84, and a through-hole 85. The second valve seat forming part 64 of the valve body 60 is inserted to the inside of an end of the holder tube part 82. The holder bottom part 83 blocks other end of the holder tube part 82. The holder flange part 84 extends from one end of the holder tube part 82 in the radial outer direction and is sandwiched between a stepped surface 52 of a tube member 50 and a stepped part 65 of the valve body 60. The through-hole 85 is formed on the holder tube part 82 and the holder bottom part 83. A discharge valve member 71 is provided seatable on the discharge valve seat 66. A spring 86 is provided between the discharge valve member 71 and the holder bottom part 83, and urges the discharge valve member 71 in the seating direction. <P>COPYRIGHT: (C)2013,JPO&INPIT |
