Attachment structure of auto tensioner
AssigneeYanmar Power Technology Co., Ltd.
InventorHiroaki NAGANAWA
Life of this patent
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Abstract
An auto tensioner is supported on one side surface of a cylinder block 4-(the outer surface of a front wall part) via a bracket. The auto tensioner includes: a tension pulley that is pressed against a belt; an arm that rotatably supports the tension pulley and is swingably supported to the bracket; and a hydraulic actuator that is supported by the arm and bracket to adjust the pressing force of the tension pulley to the belt using a predetermined position of the arm as a supporting point. The hydraulic actuator is disposed outside the water pump 8-on the front wall part of the cylinder block.
Claims5
An attachment structure of an auto tensioner that is configured to automatically adjust tension of a belt wrapped around a crank pulley and an auxiliary pulley disposed on one side surface of a cylinder block of an engine, wherein;
- the auto tensioner is attached to the one side surface of the cylinder block via a bracket,
- the auto tensioner comprises:
- a tension pulley that is pressed against the belt;
- an arm that rotatably supports the tension pulley and is swingably supported by the bracket;
- and
- a hydraulic actuator that is supported by the arm and the bracket to adjust a pressing force of the tension pulley against the belt while using a predetermined position of the arm as a fulcrum, and
- the hydraulic actuator is disposed on an outer side of a water pump on the one side surface of the cylinder block.
Dependencies are inferred from the claim text.