WO2008046005A3 - Passage limiteur de pre-compression pour pompes volumetriques - Google Patents

Passage limiteur de pre-compression pour pompes volumetriques Download PDF

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Publication number
WO2008046005A3
WO2008046005A3 PCT/US2007/081111 US2007081111W WO2008046005A3 WO 2008046005 A3 WO2008046005 A3 WO 2008046005A3 US 2007081111 W US2007081111 W US 2007081111W WO 2008046005 A3 WO2008046005 A3 WO 2008046005A3
Authority
WO
WIPO (PCT)
Prior art keywords
positive displacement
displacement pumps
compression relief
porting
displacement chamber
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.)
Ceased
Application number
PCT/US2007/081111
Other languages
English (en)
Other versions
WO2008046005A2 (fr
Inventor
Richard T Friedman
Thomas Roeber
Randy S Lessard
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.)
Parker Hannifin Corp
Original Assignee
Parker Hannifin Corp
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 Parker Hannifin Corp filed Critical Parker Hannifin Corp
Publication of WO2008046005A2 publication Critical patent/WO2008046005A2/fr
Publication of WO2008046005A3 publication Critical patent/WO2008046005A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • 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
    • F04C14/10—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • F04C14/16—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using lift valves
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C15/064—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps
    • F04C15/066—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps of the non-return type
    • F04C15/068—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps of the non-return type of the elastic type, e.g. reed valves
    • 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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/088—Elements in the toothed wheels or the carter for relieving the pressure of fluid imprisoned in the zones of engagement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

L'invention concerne une pompe volumétrique comprenant un élément pompe pourvu d'au moins un chambre de déplacement de volume variable, et un passage limiteur destiné à réduire la pression de la chambre de déplacement lorsque le volume de cette chambre décroît et qu'elle n'est pas en communication avec un orifice d'amission ou d'évacuation. Un élément soupape, tel qu'une soupape flexible, sert à réguler l'écoulement traversant le passage limiteur.
PCT/US2007/081111 2006-10-11 2007-10-11 Passage limiteur de pre-compression pour pompes volumetriques Ceased WO2008046005A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82901106P 2006-10-11 2006-10-11
US60/829,011 2006-10-11

Publications (2)

Publication Number Publication Date
WO2008046005A2 WO2008046005A2 (fr) 2008-04-17
WO2008046005A3 true WO2008046005A3 (fr) 2008-05-29

Family

ID=39133706

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/081111 Ceased WO2008046005A2 (fr) 2006-10-11 2007-10-11 Passage limiteur de pre-compression pour pompes volumetriques

Country Status (1)

Country Link
WO (1) WO2008046005A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10927833B2 (en) * 2018-05-15 2021-02-23 Schaeffler Technologies AG & Co. KG Integrated eccentric motor and pump assembly

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2069609A (en) * 1980-02-15 1981-08-26 Zahnradfabrik Friedrichshafen Rotary positive-displacement fluidmachines
DE4308506A1 (de) * 1992-03-24 1993-09-30 Unisia Jecs Corp Ölpumpensystem
DE4322614A1 (de) * 1993-07-07 1995-01-19 Iav Motor Gmbh Innenachsige Zahnradpumpe mit umlaufenden Förderräumen, vorzugsweise mit Trochoidenverzahnung
DE19531359A1 (de) * 1994-08-25 1996-02-29 Aisin Seiki Ölpumpanlage
US20040161354A1 (en) * 2003-02-14 2004-08-19 Hitachi Unisia Automotive, Ltd. Oil pump
EP1577556A2 (fr) * 2004-03-18 2005-09-21 DaimlerChrysler AG Pompe à palettes
DE102006033337A1 (de) * 2006-07-19 2008-01-24 Zf Lenksysteme Gmbh Verdrängerpumpe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2069609A (en) * 1980-02-15 1981-08-26 Zahnradfabrik Friedrichshafen Rotary positive-displacement fluidmachines
DE4308506A1 (de) * 1992-03-24 1993-09-30 Unisia Jecs Corp Ölpumpensystem
DE4322614A1 (de) * 1993-07-07 1995-01-19 Iav Motor Gmbh Innenachsige Zahnradpumpe mit umlaufenden Förderräumen, vorzugsweise mit Trochoidenverzahnung
DE19531359A1 (de) * 1994-08-25 1996-02-29 Aisin Seiki Ölpumpanlage
US20040161354A1 (en) * 2003-02-14 2004-08-19 Hitachi Unisia Automotive, Ltd. Oil pump
EP1577556A2 (fr) * 2004-03-18 2005-09-21 DaimlerChrysler AG Pompe à palettes
DE102006033337A1 (de) * 2006-07-19 2008-01-24 Zf Lenksysteme Gmbh Verdrängerpumpe

Also Published As

Publication number Publication date
WO2008046005A2 (fr) 2008-04-17

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