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water pump

A technology for water pumps and pump casings, applied in the field of water pumps, can solve problems such as increased casing weight, achieve the effects of reducing weight, improving strength and durability, and shortening length

Active Publication Date: 2016-08-03
YAMADA SEISAKUSHO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that adding the reset corresponding to the protrusion 1f to the total weight of the rib leads to an increase in the weight of the casing

Method used

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Embodiment Construction

[0027] Embodiments of the present invention will be described below based on the drawings. The present invention has a plurality of embodiments, and first, the first embodiment will be described. It mainly includes a casing A, a shaft bearing 91 , a mechanical seal 92 and an impeller 93 . The above-mentioned casing A is made of aluminum alloy, but it may also be made of other materials.

[0028] Shell A as figure 1 , Figure 5 As shown, it includes a substantially hollow cylindrical bearing hub portion 1 and a flat plate-shaped pump housing portion 2 . The bearing hub portion 1 is integrally formed with the pump housing portion 2 . The bearing hub portion 1 forms a surrounded bearing chamber 11 on the inner peripheral side. In addition, a seal mounting chamber 21 in which a mechanical seal 92 is mounted is formed in the pump housing portion 2 .

[0029] The bearing part with the shaft bearing 91 is installed in the bearing chamber 11, and the mechanical seal 92 is insta...

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PUM

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Abstract

The invention relates to a water pump. Vent holes for discharging steam in an outer shell and ribs for reinforcing tension of belt wheels for driving a pump can be kept at a proper position even if the vent holes for discharging the steam in the outer shell and the ribs for reinforcing tension of the belt wheels for driving the pump generate interference at each position. The water pump comprises the bearing chamber (11) at inner circumferential side of a bearing hub unit (1) of the outer shell (A), a seal mounting chamber (21) in a pump shell part (2), a gap chamber (3) formed between the bearing chamber (11) and the seal mounting chamber (21), a ventilating hole (5) for communicating the inner upper part and the outer upper part of the gap chamber (3) of the outer shell (A), a ventilation entablature part (6) which is formed on a predetermined position above the outside surface of the bearing hub unit (1) and covers the opening of the ventilating hole (5) and the ribs formed between the upper surface of the ventilation entablature part (6) and the pump shell part (2). The ventilation entablature part (6) is protrudingly formed from the side of the pump shell part (2) along an axial direction of the bearing hub unit (1).

Description

technical field [0001] The present invention relates to a water pump in which even when the position of a ventilation hole for discharging steam in the casing to the outside of the casing interferes with the respective positions of ribs for reinforcing the tension of a pulley for driving the pump, It is also possible to secure both in place. Background technique [0002] In general, water pumps for vehicles include bearings and mechanical seals. The mechanical seals have the function of sealing cooling water (sealing), but a very small amount of cooling water continues to leak. In order to release the leaked cooling water, a drain hole extending downward toward the outside of the housing and a ventilation hole (steam hole) extending upward outside the housing are generally formed in the space between the mechanical seal and the bearing. [0003] As such a structure, there is Japanese Patent Laid-Open No. 2002-122100. In addition, in the following description, the code|symb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/40F04D29/046
Inventor 竹内亮太郎
Owner YAMADA SEISAKUSHO KK