Valve timing adjustment device
AssigneeDenso Corporation
InventorsTomoyuki Fukuyama, Tetsuro Mitsutani
Life of this patent
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Abstract
A valve timing adjustment device includes: a housing member; a vane rotor that includes vanes and is securely coupled to a driven shaft and is rotatable relative to the housing member when the vane rotor receives a pressure of hydraulic oil introduced into hydraulic chambers; a fixing member that fixes the vane rotor to the driven shaft; and a bearing section that rotatably supports the housing member. The housing member includes a winding section that is formed at an outer peripheral surface of the housing member. A transmission member is wound around the winding section. The bearing section and the winding section at least partially overlap with each other when viewed in a direction perpendicular to an axial direction.
Claims11
A valve timing adjustment device configured to be fixed to an end part of a driven shaft to adjust a valve timing of a valve by adjusting a relative rotational phase of the driven shaft relative to a drive shaft, wherein the driven shaft is configured to receive a drive force from the drive shaft to open and close the valve, the valve timing adjustment device comprising:
- a housing member that has an inside space and is configured to receive the drive force from the drive shaft;
- a vane rotor that includes at least one vane which partitions the inside space into a plurality of hydraulic chambers, wherein the vane rotor is securely coupled to the driven shaft and is configured to rotate relative to the housing member when the vane rotor receives a pressure of hydraulic oil introduced into at least one of the plurality of hydraulic chambers;
- a fixing member that fixes the vane rotor to the driven shaft;
- and
- a bearing section that is placed between the housing member and the fixing member in a radial direction and rotatably supports the housing member, wherein:
- the housing member includes a winding section that is formed at an outer peripheral surface of the housing member, wherein a transmission member, which is configured to transmit the drive force from the drive shaft toward the driven shaft, is wound around the winding section;
- and
- the bearing section entirely overlaps with a portion of the winding section around which the transmission member is directly wound when viewed in a direction perpendicular to an axial direction of the fixing member.
Dependencies are inferred from the claim text.