FR2469578B1 - HYDRAULIC PUMP WITH ADJUSTABLE FLOW PISTON - Google Patents
HYDRAULIC PUMP WITH ADJUSTABLE FLOW PISTONInfo
- Publication number
- FR2469578B1 FR2469578B1 FR7928188A FR7928188A FR2469578B1 FR 2469578 B1 FR2469578 B1 FR 2469578B1 FR 7928188 A FR7928188 A FR 7928188A FR 7928188 A FR7928188 A FR 7928188A FR 2469578 B1 FR2469578 B1 FR 2469578B1
- Authority
- FR
- France
- Prior art keywords
- hydraulic pump
- adjustable flow
- flow piston
- piston
- adjustable
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B3/00—Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage
- F04B3/003—Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage with two or more pistons reciprocating one within another, e.g. one piston forning cylinder of the other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/18—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the effective cross-section of the working surface of the piston
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7928188A FR2469578B1 (en) | 1979-11-15 | 1979-11-15 | HYDRAULIC PUMP WITH ADJUSTABLE FLOW PISTON |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7928188A FR2469578B1 (en) | 1979-11-15 | 1979-11-15 | HYDRAULIC PUMP WITH ADJUSTABLE FLOW PISTON |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2469578A1 FR2469578A1 (en) | 1981-05-22 |
FR2469578B1 true FR2469578B1 (en) | 1986-07-04 |
Family
ID=9231723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7928188A Expired FR2469578B1 (en) | 1979-11-15 | 1979-11-15 | HYDRAULIC PUMP WITH ADJUSTABLE FLOW PISTON |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2469578B1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD250705A1 (en) * | 1986-07-07 | 1987-10-21 | Madix Dresden Veb | HYDRAULIC POWER GENERATOR |
US5290159A (en) * | 1993-03-04 | 1994-03-01 | Exxon Production Research Company | Downhole pump of constant differential hydraulic pressure |
US5542827A (en) * | 1995-02-08 | 1996-08-06 | Navistar International Transportation Corp. | Multiple nested pistons hand priming pump with spring biasing |
CN110657080B (en) * | 2019-09-10 | 2022-02-15 | 河南科技大学 | Double-speed manual pressure pump for hydraulic device of short-stroke hydraulic cylinder |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1781404A (en) * | 1929-09-03 | 1930-11-11 | Mcnab Alexander | Pump |
GB740767A (en) * | 1953-03-24 | 1955-11-16 | Chamberlain Ind Ltd | Improvements in reciprocating pumps for use in hydraulic transmission of power |
DE963217C (en) * | 1955-04-01 | 1957-05-02 | Karl Eickmann | Pump with at least two pump pistons actuated by the same operating device |
FR1148819A (en) * | 1956-02-27 | 1957-12-16 | Advanced pump | |
DE1278249B (en) * | 1966-11-11 | 1968-09-19 | Schiess Defries Hebezeug Und K | Hydraulic two-stage hand piston pump |
-
1979
- 1979-11-15 FR FR7928188A patent/FR2469578B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2469578A1 (en) | 1981-05-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |