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 fluid

Info

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
Application number
FR7429788A
Other languages
French (fr)
Other versions
FR2283335B1 (en
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.)
LUNEL BERNARD
Original Assignee
LUNEL BERNARD
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 LUNEL BERNARD filed Critical LUNEL BERNARD
Priority to FR7429788A priority Critical patent/FR2283335A1/en
Publication of FR2283335A1 publication Critical patent/FR2283335A1/en
Application granted granted Critical
Publication of FR2283335B1 publication Critical patent/FR2283335B1/fr
Granted 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
    • 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.
FR7429788A 1974-08-28 1974-08-28 Rotary pump with elliptical piston - has valve with tip riding on piston and depression to accumulate return fluid Granted FR2283335A1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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