FR2283335A1 - Rotary pump with elliptical piston - has valve with tip riding on piston and depression to accumulate return fluid - Google Patents
Rotary pump with elliptical piston - has valve with tip riding on piston and depression to accumulate return fluidInfo
- Publication number
- FR2283335A1 FR2283335A1 FR7429788A FR7429788A FR2283335A1 FR 2283335 A1 FR2283335 A1 FR 2283335A1 FR 7429788 A FR7429788 A FR 7429788A FR 7429788 A FR7429788 A FR 7429788A FR 2283335 A1 FR2283335 A1 FR 2283335A1
- Authority
- FR
- France
- Prior art keywords
- valve
- piston
- pump
- depression
- elliptical
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/40—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member
- F04C2/46—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member with vanes hinged to the outer member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Reciprocating Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The valve includes means for retaining part of the liquid displaced in the pump, in order to return it at a suitable moment. The retaining means can be a heel portion added to the valve proper, and having a larger surface than the latter, acting as a pressure regulator. The pump is for handling liquids containing malleable substances in suspension. The design gives, compared with existing designs, a longer life with less wear and back leakage. The pump has an elliptical rotor the rotor ends at the ends of the major axis being flattened. The valve tip rides on the rotor, the valve being pivoted at its heel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7429788A FR2283335A1 (en) | 1974-08-28 | 1974-08-28 | Rotary pump with elliptical piston - has valve with tip riding on piston and depression to accumulate return fluid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7429788A FR2283335A1 (en) | 1974-08-28 | 1974-08-28 | Rotary pump with elliptical piston - has valve with tip riding on piston and depression to accumulate return fluid |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2283335A1 true FR2283335A1 (en) | 1976-03-26 |
FR2283335B1 FR2283335B1 (en) | 1976-12-31 |
Family
ID=9142725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7429788A Granted FR2283335A1 (en) | 1974-08-28 | 1974-08-28 | Rotary pump with elliptical piston - has valve with tip riding on piston and depression to accumulate return fluid |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2283335A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3053743A1 (en) * | 2016-07-05 | 2018-01-12 | Cabernet Dev | LOBE PUMP |
FR3069591A1 (en) * | 2017-07-28 | 2019-02-01 | Cabernet Developpement | MECHANICAL RECALL DEVICE AND PUMP COMPRISING SAME |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR536112A (en) * | 1921-05-28 | 1922-04-26 | Improvements made in the establishment of rotary pumps | |
FR632828A (en) * | 1928-01-16 |
-
1974
- 1974-08-28 FR FR7429788A patent/FR2283335A1/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR632828A (en) * | 1928-01-16 | |||
FR536112A (en) * | 1921-05-28 | 1922-04-26 | Improvements made in the establishment of rotary pumps |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3053743A1 (en) * | 2016-07-05 | 2018-01-12 | Cabernet Dev | LOBE PUMP |
FR3069591A1 (en) * | 2017-07-28 | 2019-02-01 | Cabernet Developpement | MECHANICAL RECALL DEVICE AND PUMP COMPRISING SAME |
Also Published As
Publication number | Publication date |
---|---|
FR2283335B1 (en) | 1976-12-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |