Power tool
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United States of America Patent
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-
Feb 14, 2023
Grant Date -
N/A
app pub date -
May 4, 2021
filing date -
May 4, 2021
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A power tool has a fan guide for straightening the flow of cooling air generated by a fan, wherein the branching passages through are provided for causing a portion of the cooling air drawn into the fan from a ventilation hole to diverge from a flow toward an exhaust port formed on a bearing guide side, and the portion of the cooling air flows toward an inlet and thereby circulates inside a housing. The branching passages through provided to the fan guide are formed so as to be inclined in the same direction as a circumferential direction so that air path resistance during actual operation (in an intermediate-speed region) does not increase.
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