JPS6331284U - - Google Patents

Info

Publication number
JPS6331284U
JPS6331284U JP12549686U JP12549686U JPS6331284U JP S6331284 U JPS6331284 U JP S6331284U JP 12549686 U JP12549686 U JP 12549686U JP 12549686 U JP12549686 U JP 12549686U JP S6331284 U JPS6331284 U JP S6331284U
Authority
JP
Japan
Prior art keywords
chamber
pump
relief hole
sealed
pressure relief
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12549686U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP12549686U priority Critical patent/JPS6331284U/ja
Publication of JPS6331284U publication Critical patent/JPS6331284U/ja
Pending legal-status Critical Current

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  • Mechanical Sealing (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本考案水中ポンプの一実施例を示す要
部断面図、第2図は従来の水中ポンプの一例を示
す要部断面図である。 1……モータ室、2……ポンプ室、3……回転
羽根、7……回転軸、8,9……メカニカルシー
ル、10……密封油室、11……外周壁、13…
…圧力逃し孔、15……逆止弁装置。
FIG. 1 is a sectional view of a main part of an embodiment of the submersible pump of the present invention, and FIG. 2 is a sectional view of a main part of an example of a conventional submersible pump. DESCRIPTION OF SYMBOLS 1... Motor chamber, 2... Pump chamber, 3... Rotating vane, 7... Rotating shaft, 8, 9... Mechanical seal, 10... Sealed oil chamber, 11... Outer peripheral wall, 13...
...Pressure relief hole, 15...Check valve device.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ポンプ室内の回転羽根を駆動させる回転軸の軸
周をシールする軸封装置によつてポンプ室とモー
タ室との間に密封形成された密封油室の外周壁に
、ポンプ外部へ延びる圧力逃し孔と、密封油室内
の圧力が所定値を超えて上昇したときにのみ該圧
力逃し孔を開放する弁装置を設けたことを特徴と
する水中ポンプ。
A pressure relief hole extending to the outside of the pump is provided in the outer peripheral wall of the sealed oil chamber that is sealed between the pump chamber and the motor chamber by a shaft sealing device that seals the periphery of the rotating shaft that drives the rotary vanes in the pump chamber. A submersible pump characterized in that it is provided with a valve device that opens the pressure relief hole only when the pressure inside the sealed oil chamber rises above a predetermined value.
JP12549686U 1986-08-19 1986-08-19 Pending JPS6331284U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12549686U JPS6331284U (en) 1986-08-19 1986-08-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12549686U JPS6331284U (en) 1986-08-19 1986-08-19

Publications (1)

Publication Number Publication Date
JPS6331284U true JPS6331284U (en) 1988-02-29

Family

ID=31018444

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12549686U Pending JPS6331284U (en) 1986-08-19 1986-08-19

Country Status (1)

Country Link
JP (1) JPS6331284U (en)

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