JPS6349535Y2 - - Google Patents
Info
- Publication number
- JPS6349535Y2 JPS6349535Y2 JP1981163356U JP16335681U JPS6349535Y2 JP S6349535 Y2 JPS6349535 Y2 JP S6349535Y2 JP 1981163356 U JP1981163356 U JP 1981163356U JP 16335681 U JP16335681 U JP 16335681U JP S6349535 Y2 JPS6349535 Y2 JP S6349535Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- pump case
- vortex chamber
- pump
- engine
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【考案の詳細な説明】
本考案は、水冷エンジンのウオータポンプに関
するものである。[Detailed Description of the Invention] The present invention relates to a water pump for a water-cooled engine.
水冷エンジンのウオータポンプ（渦巻ポンプ）
は、その構造上、注水時に渦室部分の空気が抜け
ないことが多い。すなわち、注水後すぐに全負荷
で運転される場合、冷却水の流量が多いため、渦
室内に残つていた空気が完全に抜け切らず、エン
ジン内を循環し、キヤビテーシヨンをおこしやす
い。 Water pump (vortex pump) for water-cooled engines
Due to its structure, the air in the vortex chamber often cannot escape when water is injected. That is, when the engine is operated at full load immediately after water injection, the flow rate of cooling water is large, so the air remaining in the vortex chamber is not completely exhausted and circulates within the engine, which tends to cause cavitation.
また、温度上昇が急なため、サーモスタツトの
感温時間遅れと相まつてオーバシユートが大き
く、それがそのままエンジンのオーバヒートにつ
ながる危険性がある。 Furthermore, since the temperature rises rapidly, combined with the temperature sensing time delay of the thermostat, there is a large overshoot, which may directly lead to engine overheating.
また、実開昭56−50722号公報によつてエンジ
ンのラジエータロアホース内の空気を抜くため
に、サーモスタツトのラジエータ側と水ポンプの
渦巻室との間にバイパス連絡小穴を設けて注水時
のエヤ抜きと暖機時のメインバルブ開弁時の過渡
特性を向上させるものが提案されている。 In addition, according to Japanese Utility Model Application Publication No. 56-50722, in order to remove air from the radiator lower hose of the engine, a small bypass connecting hole was provided between the radiator side of the thermostat and the vortex chamber of the water pump to remove air during water injection. A method has been proposed that improves the transient characteristics when the main valve is opened during venting and warm-up.
しかし、この考案においてはシリンダボデーの
側面に設けたポンプケースの下方の吐出口に接続
されているラジエータロアホースに向かうバイパ
ス連絡小穴を設けており、注水時のエア抜きとし
ては別の排気口を操作する必要がある。 However, in this design, a bypass connecting hole is provided on the side of the cylinder body that goes to the radiator lower hose, which is connected to the discharge port at the bottom of the pump case, and a separate exhaust port is used to bleed air during water injection. There is a need to.
即ち、注水時には空気がポンプケースの上方に
たまり、インペラが回転しても簡単にこれを排出
することができず、かなりの長期間にわたつて少
しづつ排出されることになる。 That is, when water is injected, air accumulates above the pump case and cannot be easily discharged even when the impeller rotates, so that air is discharged little by little over a considerable period of time.
ポンプケース内にたまつた空気はエンジンの駆
動と共に瞬時に排出されなければ前記のような各
種の問題があり、前記考案の構造では不適当であ
る。 Unless the air accumulated in the pump case is discharged instantaneously as the engine is driven, various problems as described above will occur, and the structure of the above invention is inappropriate.
以下、図によつて本考案の実施例を説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は吸込管側の渦室の壁に透孔を穿設して
なるウオータポンプの断面図、および第２図は渦
室に接するシリンダボデーの壁に透孔を穿設して
なるウオータポンプの断面図である。 Figure 1 is a sectional view of a water pump with a through hole drilled in the wall of the vortex chamber on the suction pipe side, and Figure 2 is a sectional view of a water pump with a through hole drilled in the wall of the cylinder body in contact with the vortex chamber. FIG. 3 is a cross-sectional view of the pump.
図において、１はウオータポンプ・ケースであ
り、その回転軸２の外端にプーリ３が設けられ、
その内端にインペラ４が設けられている。プーリ
３はベルト５の回転によつて駆動され、同軸に接
続されたインペラ４の回転により、吸込管６から
冷却水が渦室７内に吸込まれる。そして、シリン
ダボデー８のウオータジヤケツト９に送られ、エ
ンジンを冷却した後、再び吸込管６からウオータ
ポンプ・ケース１内に循環してくる。 In the figure, 1 is a water pump case, and a pulley 3 is provided at the outer end of a rotating shaft 2.
An impeller 4 is provided at its inner end. The pulley 3 is driven by the rotation of the belt 5, and the rotation of the coaxially connected impeller 4 causes cooling water to be sucked into the vortex chamber 7 from the suction pipe 6. The water is then sent to the water jacket 9 of the cylinder body 8 to cool the engine, and then circulated again into the water pump case 1 through the suction pipe 6.
ここで重要なことは、吸込管６側の渦室７の最
上位置の壁に空気抜孔１０を穿設し（第１図）、
あるいは渦室７に接するシリンダボデー８の壁に
空気抜孔１０′を穿設（第２図）していることで
ある。 What is important here is that an air vent hole 10 is bored in the wall at the top of the vortex chamber 7 on the side of the suction pipe 6 (Fig. 1).
Alternatively, an air vent hole 10' is formed in the wall of the cylinder body 8 in contact with the vortex chamber 7 (FIG. 2).
このように空気抜孔１０あるいは１０′を渦室
７の上部に設けることにより、注水時にこの孔１
０あるいは１０′から空気を自然に抜くことがで
き、渦室７内に完全に水を充填することができ
る。 By providing the air vent hole 10 or 10' in the upper part of the vortex chamber 7, this hole 10 or 10' can be
Air can be naturally removed from 0 or 10', and the vortex chamber 7 can be completely filled with water.
したがつて、従来の水冷エンジンのウオーター
ポンプのようにキヤビテーシヨンやオーバーヒー
トが発生することを防止できる。 Therefore, it is possible to prevent cavitation and overheating from occurring as in conventional water-cooled engine water pumps.
更に、本考案においてはエンジンのシリンダボ
デーの側面をポンプケースの一部、特に渦室の一
部として利用しており、ポンプケースを単純化、
小型化し、ひいてはエンジンを小型化することが
できる。 Furthermore, in this invention, the side of the engine cylinder body is used as part of the pump case, especially as part of the vortex chamber, which simplifies the pump case.
It is possible to downsize the engine and, in turn, downsize the engine.
また、インペラが収容されているいるポンプケ
ースの一部が開口されているために吸入口と渦室
７との間、あるいは渦室７はウオータージヤケツ
ト９との間に簡単に空気抜孔１０あるいは１０′
を穿設することができ、加工性にも優れている。 In addition, since a part of the pump case in which the impeller is housed is open, it is easy to open an air vent hole 10 or between the suction port and the vortex chamber 7 or between the vortex chamber 7 and the water jacket 9 10'
can be drilled and has excellent workability.
第１図は吸込管側の渦室の壁に透孔を穿設して
なるウオータポンプの断面図、および第２図は渦
室に接するシリンダボデーの壁に透孔を穿設して
なるウオータポンプの断面図である。
１……ウオータポンプケース、６……吸込管、
７……渦室、８……シリンダボデー、１０，１
０′……空気抜孔。
Figure 1 is a cross-sectional view of a water pump with a through hole in the wall of the vortex chamber on the suction pipe side, and Figure 2 is a sectional view of a water pump with a through hole in the wall of the cylinder body in contact with the vortex chamber. FIG. 3 is a cross-sectional view of the pump. 1...Water pump case, 6...Suction pipe,
7... Vortex chamber, 8... Cylinder body, 10,1
0'...Air vent hole.
Claims (1)
し、該側面に対向して横回転軸によつて支持され
たインペラが配置され、該ポンプケースの吸入口
と該インペラが収容されているポンプケースの頂
部との間、あるいは該ポンプケースの頂部とウオ
ータージヤケツトを結んで空気抜孔を設けてなる
水冷エンジンのウオータポンプ。 The side surface of the cylinder body is a part of the pump case, and an impeller supported by a horizontal rotating shaft is disposed opposite to the side surface, and the suction port of the pump case and the top of the pump case accommodate the impeller. A water pump for a water-cooled engine that has an air vent between the pump case and the water jacket, or between the top of the pump case and the water jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16335681U JPS5867925U (en) | 1981-10-31 | 1981-10-31 | water pump for water cooled engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16335681U JPS5867925U (en) | 1981-10-31 | 1981-10-31 | water pump for water cooled engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5867925U JPS5867925U (en) | 1983-05-09 |
| JPS6349535Y2 true JPS6349535Y2 (en) | 1988-12-20 |
Family
ID=29955652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16335681U Granted JPS5867925U (en) | 1981-10-31 | 1981-10-31 | water pump for water cooled engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5867925U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5650722B2 (en) * | 1973-12-07 | 1981-12-01 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5650722U (en) * | 1979-09-27 | 1981-05-06 |
-
1981
- 1981-10-31 JP JP16335681U patent/JPS5867925U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5650722B2 (en) * | 1973-12-07 | 1981-12-01 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5867925U (en) | 1983-05-09 |
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