JPS5614893A - Lubricating device for oil rotary vacuum pump - Google Patents
Lubricating device for oil rotary vacuum pumpInfo
- Publication number
- JPS5614893A JPS5614893A JP9203779A JP9203779A JPS5614893A JP S5614893 A JPS5614893 A JP S5614893A JP 9203779 A JP9203779 A JP 9203779A JP 9203779 A JP9203779 A JP 9203779A JP S5614893 A JPS5614893 A JP S5614893A
- Authority
- JP
- Japan
- Prior art keywords
- pump
- piston
- pivot block
- oil
- interior
- 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
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
PURPOSE: To prevent counterflow of a pump oil when stopping a pump quickly by a constitution wherein a piston is actuated by an action of a pivot block eccentric and coupled direct to a rotor shaft, and a lubricating port valve is operated by its compressive action.
CONSTITUTION: Upon rotation of a shaft 2 coupled direct to a pump, an eccentric pivot block 11 mounted on the shaft 2 rotates. A piston 13 in contact with an outer periphery of the eccentric pivot block 11 reciprocates according to actions of a spring 17 and the eccentric pivot block 11. A reciprocation of the piston 13 is translated into an expansion work on internal capacity of a cylinder 14, giving a stroke of suction, compression and exhaust. If a pump comes to stop during compression stroke of the piston 13, a pressure in a space 28 is absorbed in the interior 9 of the pump by way of a space 30, an oil hole 29 is closed by a valve 23, and a counterflow of external oil in the interior 9 of the pump is prevented. Only a quantitative oil absorbed in the space 28 is fed in the interior 9 of the pump.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9203779A JPS5614893A (en) | 1979-07-18 | 1979-07-18 | Lubricating device for oil rotary vacuum pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9203779A JPS5614893A (en) | 1979-07-18 | 1979-07-18 | Lubricating device for oil rotary vacuum pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5614893A true JPS5614893A (en) | 1981-02-13 |
Family
ID=14043323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9203779A Pending JPS5614893A (en) | 1979-07-18 | 1979-07-18 | Lubricating device for oil rotary vacuum pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5614893A (en) |
-
1979
- 1979-07-18 JP JP9203779A patent/JPS5614893A/en active Pending
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