FR2469578B1 - HYDRAULIC PUMP WITH ADJUSTABLE FLOW PISTON - Google Patents

HYDRAULIC PUMP WITH ADJUSTABLE FLOW PISTON

Info

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
Application number
FR7928188A
Other languages
French (fr)
Other versions
FR2469578A1 (en
Inventor
Andre Peltan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MINGORI STE NOUVELLE CINTREUSE
Original Assignee
MINGORI STE NOUVELLE CINTREUSE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MINGORI STE NOUVELLE CINTREUSE filed Critical MINGORI STE NOUVELLE CINTREUSE
Priority to FR7928188A priority Critical patent/FR2469578B1/en
Publication of FR2469578A1 publication Critical patent/FR2469578A1/en
Application granted granted Critical
Publication of FR2469578B1 publication Critical patent/FR2469578B1/en
Expired legal-status Critical Current

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)
FR7928188A 1979-11-15 1979-11-15 HYDRAULIC PUMP WITH ADJUSTABLE FLOW PISTON Expired FR2469578B1 (en)

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 (6)

* Cited by examiner, † Cited by third party
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 Two-speed manual booster pump for short stroke hydraulic cylinder hydraulics
CN116066327B (en) * 2021-11-03 2025-10-21 中国石油天然气股份有限公司 Compressor oil injector oil pump device and use method thereof
CN116292218B (en) * 2021-12-20 2025-08-01 中国石油化工股份有限公司 Fixed pipe column variable displacement oil pump, use method and special locking mechanism

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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

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