Water pump
AssigneeAisin Seiki Kabushiki Kaisha
InventorJunya Yamamoto
Life of this patent
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Abstract
A water pump that minimizes defects in which cooling water flows externally is provided. The water pump is provided with a rotating shaft supported by a body via a bearing, an impeller that is disposed at one end of the rotating shaft, and a seal member that is disposed between the impeller and the bearing. A drain passage that sandwiches the seal member and communicates with a space formed on the opposite side of the impeller is formed in the body, and a reservoir is formed downstream from the drain passage. At an upper position of a wall portion that forms the reservoir, a drain hole is formed, and a water-absorbing planar member is positioned in the reservoir.
Claims6
A water pump comprising:
- a rotating shaft supported by a body via a bearing;
- an impeller that is disposed at one end of the rotating shaft;
- and
- a seal member that is disposed between the impeller and the bearing;
- wherein a drain passage that sandwiches the seal member and communicates with a space formed on the opposite side of the impeller is formed in the body;
- a reservoir is formed downstream from the drain passage;
- a drain hole is formed at an upper position of a wall portion that forms the reservoir;
- a water-absorbing planar member is positioned in the reservoir;
- and a front surface and a rear surface of the planar member are exposed to air,
- wherein the planar member has a shape having a bent portion, and
- wherein the bent portion defines a recess which faces the drain passage.
A water pump comprising:
- a rotating shaft supported by a body via a bearing;
- an impeller that is disposed at one end of the rotating shaft;
- and
- a seal member that is disposed between the impeller and the bearing;
- wherein a drain passage that sandwiches the seal member and communicates with a space formed on the opposite side of the impeller is formed in the body;
- a reservoir is formed downstream from the drain passage;
- a drain hole is formed at an upper position of a wall portion that forms the reservoir;
- and a plurality of water-absorbing members having water absorbing property are disposed in the reservoir, with forming gaps therebetween that allow passage of cooling water, and
- wherein the plurality of water-absorbing members are spaced apart from the drain passage.
Dependencies are inferred from the claim text.