JPS5716285A - Diaphragm type vacuum pump - Google Patents
Diaphragm type vacuum pumpInfo
- Publication number
- JPS5716285A JPS5716285A JP9061580A JP9061580A JPS5716285A JP S5716285 A JPS5716285 A JP S5716285A JP 9061580 A JP9061580 A JP 9061580A JP 9061580 A JP9061580 A JP 9061580A JP S5716285 A JPS5716285 A JP S5716285A
- Authority
- JP
- Japan
- Prior art keywords
- space
- diaphragm
- piston
- step part
- air
- 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
- Reciprocating Pumps (AREA)
Abstract
PURPOSE: To certainly prevent reduction of exhaust efficiency by introducing the air compressed in the variable space between the step part of a piston and the step part of a cylinder opening into the lower part space of a diaphragm in the upward cycle of the piston, and eliminating the dead space at the top dead point.
CONSTITUTION: In the upward cycle of a piston 5, the air in the upper space of the diaphragm 3 in a pump chamber 4 is discharged outside through a pump discharge valve 8, and the air compressed in the variable space between the step part of the piston 5 and the step part 14 of a cylinder opening 6 is introduced into the lower space of the diaphragm 3 through a discharge valve 17 and obtains a maximum pressure at th top dead point position. Accordingly, the diaphragm 3 is pressed and struck onto the inner surface of a cylinder head 2, and the air in the space is dicharged completely. Therefore, formation of the dead space at the top dead point as in the conventional apparatus and subsequent reduction of the exhaust efficiency can be certainly prevented.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9061580A JPS5716285A (en) | 1980-07-04 | 1980-07-04 | Diaphragm type vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9061580A JPS5716285A (en) | 1980-07-04 | 1980-07-04 | Diaphragm type vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5716285A true JPS5716285A (en) | 1982-01-27 |
Family
ID=14003384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9061580A Pending JPS5716285A (en) | 1980-07-04 | 1980-07-04 | Diaphragm type vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5716285A (en) |
-
1980
- 1980-07-04 JP JP9061580A patent/JPS5716285A/en active Pending
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