JPH0259220U

JPH0259220U -

Info

Publication number: JPH0259220U
Application number: JP13774088U
Authority: JP
Priority date: 1988-10-24
Filing date: 1988-10-24
Publication date: 1990-04-27

Description

[Brief explanation of drawings]

図面は本考案の実施例を示すものであつて、そ
の第１図は本考案の第１実施例の要部断面図、第
２図は第１図の一部切除した要部斜視図、第３図
は第１図の要部拡大断面図、第４図は第３図―
矢視断面図、第５図は第４図の別の実施例の断
面図、第６図は第３図の別の実施例の要部拡大断
面図、第７図は本考案の第１実施例の別の要部拡
大断面図、第８図は第７図―矢視断面図、第
９図は本考案の第２実施例の要部拡大断面図、第
１０図は第９図―矢視断面図、第１１図は本
考案の第２実施例の別の要部拡大断面図、第１２
図は第１１図―矢視断面図、第１３図は
本考案の第１実施例の別の要部断面図、第１４図
は第１３図の一部切除した要部斜視図、第１５図
乃至第１７図は本考案の作用状態を示す断面図で
ある。Ａ……ケーシング、Ｂ……ベルト車、１……軸
受室、２……インペラ室、３……軸受、４……ポ
ンプ軸、Ｄ……固定流入路、Ｅ……回転流入路、
Ｃ……メカニカルシール、ｔ……接触部、１４…
…羽根部。 The drawings show an embodiment of the present invention, in which Fig. 1 is a sectional view of the main part of the first embodiment of the invention, Fig. 2 is a perspective view of the main part with a part cut away from Fig. 1, and Fig. Figure 3 is an enlarged sectional view of the main part of Figure 1, and Figure 4 is Figure 3.
5 is a sectional view of another embodiment shown in FIG. 4, FIG. 6 is an enlarged sectional view of main parts of another embodiment shown in FIG. 3, and FIG. 7 is a first embodiment of the present invention. Another enlarged sectional view of the main part of the example, FIG. 8 is a sectional view taken in the direction of the arrow in FIG. 7, FIG. 9 is an enlarged sectional view of the main part of the second embodiment of the present invention, and FIG. A perspective sectional view, FIG. 11 is another enlarged sectional view of main parts of the second embodiment of the present invention, FIG.
The figures are Fig. 11 - a sectional view taken in the direction of the arrows, Fig. 13 is another sectional view of the main part of the first embodiment of the present invention, Fig. 14 is a perspective view of the main part with a part cut away from Fig. 13, and Fig. 15. 17 to 17 are cross-sectional views showing the operating state of the present invention. A...Casing, B...Belt wheel, 1...Bearing chamber, 2...Impeller chamber, 3...Bearing, 4...Pump shaft, D...Fixed inflow path, E...Rotating inflow path,
C...Mechanical seal, t...Contact part, 14...
...feather part.

Claims

[Scope of Claim for Utility Model Registration] (1) Between the outer surface of the bearing of the pump shaft pivotally supported in the bearing chamber of the casing, which consists of a bearing chamber and an impeller chamber, and the inner wall surface of the bearing chamber, from the inside of the casing to the outside. A communicating fixed inflow channel is formed, a cup-shaped belt pulley with blades formed on the bottom is fixed to an externally protruding pump shaft, and the blade is opposed to the external opening of the fixed inflow channel. Features a water pump leakage steam exhaust structure. (2) A rotary inflow passage that communicates from the inside of the casing to the outside is formed between the inner surface of the bearing of the pump shaft, which is rotatably supported in the bearing chamber of the casing, which consists of a bearing chamber and an impeller chamber, and the pump shaft. A leakage steam discharge structure for a water pump, characterized in that a cup-shaped belt pulley having a section formed therein is fixed to an externally projecting pump shaft, and its vane section is opposed to an external opening of a rotating inflow passage.