| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of part items, to simplify a constitution, and to reduce the size of and weight of the constitution, in, for example, a valve timing variable device.SOLUTION: A constituent member of a hydraulic device comprises a housing 22 which rotates accompanied by the rotation of a crankshaft of an engine, and a rotor 24 which is connected to a camshaft and rotates integrally with the housing 22 in the housing 22. A rotation phase between the housing 22 and the rotor 24 is changed by the pressure of operation oil which is supplied between the housing 22 and the rotor 24. The rotor 24 is constituted by connecting a plurality of pieces of metal thin plates 42, and an oil supply passage 40 is formed between components while straddling a connecting part. A valve seat is formed in the oil supply passage 40 in the connecting part, and a valve main body which corresponds to the valve seat so as to be approachable and separable is arranged in the oil supply passage.SELECTED DRAWING: Figure 1 |
