FR2599435B1 - UNIDIRECTIONAL PUMPING DEVICE WITH REVERSIBLE PUMP. - Google Patents

UNIDIRECTIONAL PUMPING DEVICE WITH REVERSIBLE PUMP.

Info

Publication number
FR2599435B1
FR2599435B1 FR8607725A FR8607725A FR2599435B1 FR 2599435 B1 FR2599435 B1 FR 2599435B1 FR 8607725 A FR8607725 A FR 8607725A FR 8607725 A FR8607725 A FR 8607725A FR 2599435 B1 FR2599435 B1 FR 2599435B1
Authority
FR
France
Prior art keywords
bore
intermediate chambers
outlet
inlet
opening
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
FR8607725A
Other languages
French (fr)
Other versions
FR2599435A1 (en
Inventor
Xavier Duval
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.)
Alstom SA
Original Assignee
Alstom SA
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 Alstom SA filed Critical Alstom SA
Priority to FR8607725A priority Critical patent/FR2599435B1/en
Priority to ES87401205T priority patent/ES2012092B3/en
Priority to DE8787401205T priority patent/DE3761002D1/en
Priority to EP87401205A priority patent/EP0247947B1/en
Priority to AT87401205T priority patent/ATE48026T1/en
Publication of FR2599435A1 publication Critical patent/FR2599435A1/en
Application granted granted Critical
Publication of FR2599435B1 publication Critical patent/FR2599435B1/en
Priority to GR90400071T priority patent/GR3000345T3/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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/04—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for reversible machines or pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
  • Rotary Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Hydraulic Motors (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

1. A unidirectional pumping apparatus having a reversible pump, said apparatus being intended to receive a fluid to be pumped at an inlet opening (14) and to deliver it from an outlet opening, with a rotary motor (MT) whose direction of rotation may be reversed, said apparatus comprising : first and second intermediate chambers (8, 8') ; a rotary pump (P) connected between these two intermediate chambers in order to thrust the fluid to be pumped from one of said intermediate chambers in which pressure is then reduced (8, Figure 2) towards the other in which pressure is then increased (8'), with the direction of said thrust changing with the direction of rotation of said pump, and said pump being driven by said motor (MT) such that the direction of said thrust is likewise liable to be reversed so that each of said first and second intermediate chambers is sometimes at reduced pressure and sometimes at increased pressure ; and unidirectional inlet communication means for allowing the fluid to be pumped to pass from said inlet opening to each of said two intermediate chambers, and unidirectional outlet communication means for enabling said fluid to pass from each of said two intermediate chambers to said outlet opening, said means being passive means driven by the pressure difference appearing in said fluid between the two intermediate chambers under the action of said pump, such that said pump always thrusts said fluid from the inlet opening towards the outlet opening regardless of its direction of rotation ; said unidirectional inlet communication means comprising an inlet bore (4) extending from a first end to a second end, which ends are in communication with said first and second intermediate chambers (8, 8') respectively, said inlet opening (14) being in communication with said bore via a middle opening (14) in the side wall thereof, abutment means (84, 84'), and an inlet distributing slide (6) sliding in said inlet bore under the thrust of said pressure difference between the intermediate chambers between first and second extreme positions (L, L') defined by said abutments and situated close to said first and second ends of said bore respectively ; said unidirectional outlet communication means comprising an outlet bore (5) extending between first and second ends (5A, 5B) which communicate with said first and second intermediate chambers (8, 8') respectively, a middle opening (13) in the side wall of said bore communicating with said outlet opening (13), abutment means (84, 84'), and an outlet distributing slide (7) closing said outlet bore (5) and sliding therein under the thrust of said pressure difference between the intermediate chambers (8, 8') between first and second extreme positions defined by said abutments adjacent to said first and second ends (5A, 5B) respectively ; said apparatus being characterized by the fact that said first and second ends of the inlet bore (4) communicate with said first and second intermediate chambers (8, 8') via first and second lateral hollows (9, 9') formed in the side wall of said bore ; said inlet slide (6) including first and second closure heads (61, 63) each suitable for closing sections of said bore (4) adjacent to said first and second lateral openings (9, 9') respectively ; and a spacer (62) interconnecting these two heads and holding them at a distance apart from each other, with the length of said spacer and the positions of said abutments (84, 84') being such that when the slide is in said second or first extreme position, the first or the second head closes said bore between said middle opening (14) and said first or second lateral hollow, respectively, and the second or the first head lies beyond said second or first lateral hollow respectively ; said first and second extreme positions of the outlet slide (7) placing said slide between said middle opening (13) of the outlet bore (5) and one or other of said first and second ends (5A, 5B) of said bore in such a manner that, when said slide is in said positions, it does not constitute an obstacle for said fluid flow between said opening and one or other of said second and first intermediate chambers (8', 8) respectively.
FR8607725A 1986-05-29 1986-05-29 UNIDIRECTIONAL PUMPING DEVICE WITH REVERSIBLE PUMP. Expired FR2599435B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR8607725A FR2599435B1 (en) 1986-05-29 1986-05-29 UNIDIRECTIONAL PUMPING DEVICE WITH REVERSIBLE PUMP.
ES87401205T ES2012092B3 (en) 1986-05-29 1987-05-27 REVERSIBLE UNIDIRECTIONAL PUMP PUMPING DEVICE.
DE8787401205T DE3761002D1 (en) 1986-05-29 1987-05-27 One-direction pumping apparatus with a reversible pump
EP87401205A EP0247947B1 (en) 1986-05-29 1987-05-27 One-direction pumping apparatus with a reversible pump
AT87401205T ATE48026T1 (en) 1986-05-29 1987-05-27 ONE-WAY PUMPING DEVICE WITH REVERSE PUMP.
GR90400071T GR3000345T3 (en) 1986-05-29 1990-02-07 One-direction pumping apparatus with a reversible pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8607725A FR2599435B1 (en) 1986-05-29 1986-05-29 UNIDIRECTIONAL PUMPING DEVICE WITH REVERSIBLE PUMP.

Publications (2)

Publication Number Publication Date
FR2599435A1 FR2599435A1 (en) 1987-12-04
FR2599435B1 true FR2599435B1 (en) 1988-08-05

Family

ID=9335788

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8607725A Expired FR2599435B1 (en) 1986-05-29 1986-05-29 UNIDIRECTIONAL PUMPING DEVICE WITH REVERSIBLE PUMP.

Country Status (6)

Country Link
EP (1) EP0247947B1 (en)
AT (1) ATE48026T1 (en)
DE (1) DE3761002D1 (en)
ES (1) ES2012092B3 (en)
FR (1) FR2599435B1 (en)
GR (1) GR3000345T3 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865301A (en) * 1953-06-24 1958-12-23 Auto Research Corp Lubrication
CH346738A (en) * 1956-05-03 1960-05-31 Oerlikon Maschf Feeding device with a pump that works in both directions of rotation
GB936679A (en) * 1960-04-22 1963-09-11 Pneumatikus Es Hidraulikus Gep Improvements in or relating to screw pumps
US3120190A (en) * 1961-03-02 1964-02-04 Falk Corp Gear pump

Also Published As

Publication number Publication date
EP0247947B1 (en) 1989-11-15
ATE48026T1 (en) 1989-12-15
ES2012092B3 (en) 1990-03-01
EP0247947A1 (en) 1987-12-02
FR2599435A1 (en) 1987-12-04
GR3000345T3 (en) 1991-06-07
DE3761002D1 (en) 1989-12-21

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Legal Events

Date Code Title Description
ST Notification of lapse