JPS62160788U - - Google Patents
Info
- Publication number
- JPS62160788U JPS62160788U JP4826886U JP4826886U JPS62160788U JP S62160788 U JPS62160788 U JP S62160788U JP 4826886 U JP4826886 U JP 4826886U JP 4826886 U JP4826886 U JP 4826886U JP S62160788 U JPS62160788 U JP S62160788U
- Authority
- JP
- Japan
- Prior art keywords
- pump
- oil chamber
- reducer
- seal
- relief valve
- 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
Links
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims 4
- 239000012530 fluid Substances 0.000 claims 1
- 239000010687 lubricating oil Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Mechanical Sealing (AREA)
Description
第１図は本考案の実施例の一部切欠き縦断面図
、第２図は本考案を実施した直結ポンプを備える
燃料移送装置の説明図、第３図は従来装置の一部
切欠き縦断面図である。
３…減速機、６…駆動軸、９…吸入口、１０…
吐出口、１１…補助ポンプ、１２…リリーフ弁、
１３…外部タンク、１８…メカニカルシール、２
０…ポンプ側シール部、２１…減速機側シール部
、２５…第１油室、２６…絞り部、２７…第２油
室、２８…絞り通路、２９…中間室、３０…ドレ
ン口。
Fig. 1 is a partially cutaway vertical sectional view of an embodiment of the present invention, Fig. 2 is an explanatory diagram of a fuel transfer device equipped with a direct-coupled pump implementing the present invention, and Fig. 3 is a partially cutaway longitudinal sectional view of a conventional device. It is a front view. 3...Reducer, 6...Drive shaft, 9...Suction port, 10...
Discharge port, 11...auxiliary pump, 12...relief valve,
13...External tank, 18...Mechanical seal, 2
0... Pump side seal part, 21... Reducer side seal part, 25... First oil chamber, 26... Throttle part, 27... Second oil chamber, 28... Throttle passage, 29... Intermediate chamber, 30... Drain port.
Claims (1)
に配設された対面形ダブルシール構造のメカニカ
ルシールと、このメカニカルシールを構成するポ
ンプ側シール部と減速機側シール部とで挾まれた
中間室を外部タンクに接続するドレン口と、ポン
プ側シール部を収容した第１油室とポンプ吐出口
とを連通する通路に形成された絞り部と、第１油
室とポンプ吸入口とを接続する絞り通路と、減速
機側シール部を収容した第２油室に減速機内の潤
滑油を圧送する補助ポンプと、この補助ポンプの
吐出ラインに配設されたリリーフ弁とを備え、こ
のリリーフ弁の設定圧力を第１油室の流体圧力よ
り高くしたことを特徴とする直結ポンプのシール
装置。 A mechanical seal with a face-to-face double seal structure is installed between the drive shaft of a direct-coupled pump and the pump casing, and an intermediate chamber sandwiched between a pump-side seal part and a reducer-side seal part that make up this mechanical seal. A drain port that connects to the external tank, a constriction portion formed in a passage that communicates the first oil chamber containing the pump-side seal portion with the pump discharge port, and a constriction that connects the first oil chamber and the pump suction port. A passage, an auxiliary pump that pumps the lubricating oil in the reducer to a second oil chamber that accommodates the seal on the reducer side, and a relief valve disposed in the discharge line of this auxiliary pump, and the setting of this relief valve. A sealing device for a direct-coupled pump, characterized in that the pressure is higher than the fluid pressure in the first oil chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4826886U JPS62160788U (en) | 1986-03-31 | 1986-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4826886U JPS62160788U (en) | 1986-03-31 | 1986-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62160788U true JPS62160788U (en) | 1987-10-13 |
Family
ID=30869636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4826886U Pending JPS62160788U (en) | 1986-03-31 | 1986-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62160788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003004147A (en) * | 2001-06-21 | 2003-01-08 | Eagle Ind Co Ltd | Multistage shaft seal device |
-
1986
- 1986-03-31 JP JP4826886U patent/JPS62160788U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003004147A (en) * | 2001-06-21 | 2003-01-08 | Eagle Ind Co Ltd | Multistage shaft seal device |
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