| 摘要 |
PROBLEM TO BE SOLVED: To constantly provide a stable sealing effect even when temperature changes by forming a housing member and a sealing member of a material having the roughly same coefficient of linear expansion. SOLUTION: A vane member 15 is stored in a pushing member 4 rotating with a sprocket 3, a plural number of vanes 18 projected in the radial direction are provided on the vane member 15, a plural number of advance angle chambers 19 and delay angle chambers 20 are formed in the housing member 4, the sealing member 21 formed of the material having the roughly same coefficient of linear expansion as the housing member 4 is provided between head ends of the vanes 18 and the housing member 4, a clearance between both side inner surfaces of the housing member 4 and both ends of the sealing member 21 is constantly maintained even when temperature of the housing member 4 and the vane member 15 changes, and accordingly, the stable sealing effect is constantly provided. |
