JPS6449699U

JPS6449699U -

Info

Publication number: JPS6449699U
Application number: JP14383887U
Authority: JP
Priority date: 1987-09-22
Filing date: 1987-09-22
Publication date: 1989-03-28

Description

[Brief explanation of the drawing]

第１図は本考案に係るウオーターポンプの一実
施例を示す概略的要部断面図、第２図は同じくウ
オーターポンプのドレン孔に装着した異物介入防
止弁の拡大断面図、第３図は同じく異物介入防止
弁の平面図、第４図は従来のウオーターポンプの
概略的要部断面図である。１……機体の大気側ハウジング、２……ベアリ
ング、３……ポンプヘツドの流体側ハウジング、
４……回転軸、５……インペラー、６……メカニ
カルシール部材、７……蒸気孔、８……ドレン孔
、１０……異物介入防止弁、１１……本体、１２
……スリツト、１３……ヒンジ結合部、１４……
ダンパー部。 Fig. 1 is a schematic cross-sectional view of essential parts showing an embodiment of a water pump according to the present invention, Fig. 2 is an enlarged sectional view of a foreign matter intervention prevention valve installed in the drain hole of the water pump, and Fig. 3 is the same. A plan view of the foreign matter intervention prevention valve and FIG. 4 are schematic cross-sectional views of essential parts of a conventional water pump. 1... Atmospheric side housing of the aircraft body, 2... Bearing, 3... Fluid side housing of the pump head,
4... Rotating shaft, 5... Impeller, 6... Mechanical seal member, 7... Steam hole, 8... Drain hole, 10... Foreign matter intervention prevention valve, 11... Main body, 12
...Slit, 13...Hinge joint, 14...
damper part.

Claims

[Scope of utility model registration request]

An impeller provided in the fluid side housing of the pump head is connected to the tip of a rotating shaft inserted through a bearing from inside the atmosphere side housing of the airframe to drive the impeller, and the fluid side housing and the atmosphere side housing are connected to each other. A mechanical seal member is placed around the rotating shaft between the shafts to seal the shaft.
In the water pump in which a steam hole and a drain hole are provided in both upper and lower parts of the atmosphere-side housing, the drain hole located at the lower part of the atmosphere-side housing includes:
A water pump characterized by being provided with a foreign matter intervention prevention valve which also functions to adjust the drainage of water that has accumulated above a certain amount by cooling steam leaking from a mechanical seal member and turning it into water droplets.