| 摘要 |
PROBLEM TO BE SOLVED: To ensure a sufficient surface pressure of a seal part even if two members are bonded by press-fitting and one of the members is cylindrical.SOLUTION: Housing protrusions 45 are provided on a bottom of a second reservoir hole 42 of a housing 40. With this configuration, inner circumferential corners of a distal end of a sleeve 88 in a press-fitting direction E abut on abutment surfaces 451 of the housing protrusions 45 to thereby suppress deformation of the distal end of the sleeve 88 although the distal end of the sleeve 88 deforms radially inward to escape in a process of press-fitting the sleeve 88 into the second reservoir hole 42. |
