JPS6274199U - - Google Patents

Description

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

第１図乃至第３図は本考案実施例を示すもので
、第１図は縦断面図、第２図は第１図Ａ―Ａ線に
沿う吸入負圧小の時の断面図、第３図は吸入負圧
大の時の断面図、第４図はインペラと水切部との
関係を示す特性線図、第５図は従来例を示す縦断
面図、第６図は第５図Ｂ―Ｂ線に沿う断面図であ
る。 符号の説明、３……渦巻状ポンプ室、４……イ
ンペラ、６……駆動軸、７……吸入ポート、８…
…吐出ポート、１２……水切部、１３……圧力室
、１４……連結部材、１５……弾発手段、１８…
…変位部材。 1 to 3 show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is a sectional view taken along the line A-A in FIG. The figure is a cross-sectional view when the suction negative pressure is large, Figure 4 is a characteristic diagram showing the relationship between the impeller and the water cutter, Figure 5 is a vertical cross-sectional view showing the conventional example, and Figure 6 is Figure 5B- It is a sectional view along the B line. Explanation of symbols, 3... Volute pump chamber, 4... Impeller, 6... Drive shaft, 7... Suction port, 8...
...Discharge port, 12...Draining section, 13...Pressure chamber, 14...Connecting member, 15...Bulging means, 18...
...Displacement member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ハウジングにより渦巻状ポンプ室３を形成し、
該渦巻状ポンプ室３内に、駆動軸６に固着されて
、渦巻状ポンプ室３内を回転自在なインペラ４を
設け、該インペラ４の回転により流動する冷却水
を吐出ポート８へ導く水切部１２を、前記インペ
ラ４に隣接して渦巻状ポンプ室３内に設けた内燃
機関冷却用ポンプにおいて、前記水切部１２をイ
ンペラ４に対して変位可能に渦巻状ポンプ室３に
支持し、吸入ポート７に連通する圧力室１３をハ
ウジングに設け、該圧力室１３に圧力変化により
変位可能な変位部材１８を設け、該変位部材１８
と水切部１２とを連結部材１４により連結し、前
記変位部材１８を弾発して水切部１２をインペラ
４に接近させる弾発手段１５を設けたことを特徴
とする内燃機関冷却用ポンプ。 A spiral pump chamber 3 is formed by the housing,
An impeller 4 is provided in the spiral pump chamber 3 and is fixed to a drive shaft 6 and is rotatable within the spiral pump chamber 3, and a drain section that guides cooling water flowing through the rotation of the impeller 4 to a discharge port 8. 12 is an internal combustion engine cooling pump provided in the spiral pump chamber 3 adjacent to the impeller 4, the water cutter 12 is supported in the spiral pump chamber 3 so as to be displaceable with respect to the impeller 4, and A pressure chamber 13 communicating with the pressure chamber 7 is provided in the housing, a displacement member 18 that can be displaced by a pressure change is provided in the pressure chamber 13, and the displacement member 18
A pump for cooling an internal combustion engine, characterized in that a springing means 15 is provided which connects the draining portion 12 and the draining portion 12 by a connecting member 14, and springs the displacement member 18 to cause the draining portion 12 to approach the impeller 4.