JPS62203991U - - Google Patents
Info
- Publication number
- JPS62203991U JPS62203991U JP9129986U JP9129986U JPS62203991U JP S62203991 U JPS62203991 U JP S62203991U JP 9129986 U JP9129986 U JP 9129986U JP 9129986 U JP9129986 U JP 9129986U JP S62203991 U JPS62203991 U JP S62203991U
- Authority
- JP
- Japan
- Prior art keywords
- oil
- cylinder chamber
- vacuum pump
- oil supply
- pump
- 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.)
- Granted
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案が適用された油回転真空ポンプ
の要部を示す断面図、第２図は第１図の―線
に沿う一部を破断して示す矢視図、第３図は第１
図の―線に沿う断面図、第４図Ａ〜Ｃは開閉
弁の作動モードを示す断面図、第５図は開閉弁の
開度変化を示す線図である。
１０……油回転真空ポンプ、１２……油溜室、
１４……シリンダ室、１５……ロータ軸、１６…
…ロータ、２４……油供給ポンプ、３１……開閉
弁、３６……開度調節子。
Fig. 1 is a cross-sectional view showing the main parts of an oil rotary vacuum pump to which the present invention is applied, Fig. 2 is a partially cutaway view taken along line - in Fig. 1, and Fig. 1
4A to 4C are cross-sectional views showing the operating modes of the on-off valve, and FIG. 5 is a line diagram showing changes in the opening degree of the on-off valve. 10...Oil rotary vacuum pump, 12...Oil sump chamber,
14... Cylinder chamber, 15... Rotor shaft, 16...
... Rotor, 24 ... Oil supply pump, 31 ... Opening/closing valve, 36 ... Opening degree regulator.
Claims (1)
回転させる状態下で、油溜室内の油をシリンダ室
内に供給可能とする油回転真空ポンプの給油装置
において、ロータ軸に連結され、油溜室内の油を
油供給路を介してシリンダ室内に圧送可能とする
油供給ポンプと、油供給路に介在され、真空ポン
プ運転時のシリンダ室内負圧によつて開き、真空
ポンプ停止時のシリンダ室内負圧に対して閉じる
開閉弁と、真空ポンプの運転時における開閉弁の
開度を油の温度の上昇につれて増大化させる形状
記憶合金製の開度調節子とを有してなる油回転真
空ポンプの給油装置。 In an oil supply device for an oil rotary vacuum pump that can supply oil from an oil reservoir into a cylinder chamber while a rotor fixed to the rotor shaft is rotating in the cylinder chamber, the An oil supply pump that can pump oil into the cylinder chamber through an oil supply path, and an oil supply pump that is interposed in the oil supply path and opens by the negative pressure in the cylinder chamber when the vacuum pump is operating, and is opened by the negative pressure in the cylinder chamber when the vacuum pump is stopped. Oil supply device for an oil rotary vacuum pump, comprising an on-off valve that closes to the opposite end of the valve, and an opening adjuster made of a shape memory alloy that increases the opening degree of the on-off valve when the vacuum pump is in operation as the oil temperature rises. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9129986U JPH037595Y2 (en) | 1986-06-17 | 1986-06-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9129986U JPH037595Y2 (en) | 1986-06-17 | 1986-06-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62203991U true JPS62203991U (en) | 1987-12-26 |
| JPH037595Y2 JPH037595Y2 (en) | 1991-02-25 |
Family
ID=30951956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9129986U Expired JPH037595Y2 (en) | 1986-06-17 | 1986-06-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH037595Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016138506A (en) * | 2015-01-27 | 2016-08-04 | 大豊工業株式会社 | Vacuum pump |
-
1986
- 1986-06-17 JP JP9129986U patent/JPH037595Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016138506A (en) * | 2015-01-27 | 2016-08-04 | 大豊工業株式会社 | Vacuum pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH037595Y2 (en) | 1991-02-25 |
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