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WO2011158167A3 - Fluidic gear machine with flow rate regulation - Google Patents

Fluidic gear machine with flow rate regulation Download PDF

Info

Publication number
WO2011158167A3
WO2011158167A3 PCT/IB2011/052555 IB2011052555W WO2011158167A3 WO 2011158167 A3 WO2011158167 A3 WO 2011158167A3 IB 2011052555 W IB2011052555 W IB 2011052555W WO 2011158167 A3 WO2011158167 A3 WO 2011158167A3
Authority
WO
WIPO (PCT)
Prior art keywords
machine
flow rate
fluidic
regulating
pump
Prior art date
Application number
PCT/IB2011/052555
Other languages
French (fr)
Other versions
WO2011158167A2 (en
Inventor
Armando Codeca'
Matteo Cortesi
Leonardo Cadeddu
Alessandro Fauda
Matteo Calderoni
Original Assignee
Vhit S.P.A.
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 Vhit S.P.A. filed Critical Vhit S.P.A.
Priority to EP11735549.5A priority Critical patent/EP2582981A2/en
Publication of WO2011158167A2 publication Critical patent/WO2011158167A2/en
Publication of WO2011158167A3 publication Critical patent/WO2011158167A3/en

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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
    • 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
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • F04C14/265—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels being obtained by displacing a lateral sealing face

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

An internal gear fluidic machine (1), in particular a pump for the lubrication circuit of a motor vehicle engine, comprises a member (13) for regulating the flow rate depending on the fluid pressure conditions in a fluidic circuit in which the machine (1) is connected. The regulating member (13) is axially slidable, without rotating, in a seat (12) formed in the body (10) of the machine (1) and has a first surface (18) for pressure application, which is permanently exposed to said pressure conditions and is arranged, when a threshold is exceeded, to cause a sliding of the regulating member (13) in order to create a fluid recirculation path through the machine (1). A method of regulating the flow rate of a fluidic machine and a combined pump (1, 100) for the automotive field, using the machine (1) as a pump for the lubrication circuit, are also provided.
PCT/IB2011/052555 2010-06-15 2011-06-13 Fluidic gear machine with flow rate regulation WO2011158167A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11735549.5A EP2582981A2 (en) 2010-06-15 2011-06-13 Fluidic gear machine with flow rate regulation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO2010A000516A IT1401005B1 (en) 2010-06-15 2010-06-15 FLUID MACHINE WITH FLOW REGULATION
ITTO2010A000516 2010-06-15

Publications (2)

Publication Number Publication Date
WO2011158167A2 WO2011158167A2 (en) 2011-12-22
WO2011158167A3 true WO2011158167A3 (en) 2013-03-28

Family

ID=43432035

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/052555 WO2011158167A2 (en) 2010-06-15 2011-06-13 Fluidic gear machine with flow rate regulation

Country Status (3)

Country Link
EP (1) EP2582981A2 (en)
IT (1) IT1401005B1 (en)
WO (1) WO2011158167A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9163628B2 (en) * 2013-03-11 2015-10-20 Imo Industries, Inc. Self adjusting gear pump
EP3186510B1 (en) * 2014-08-25 2018-12-26 Carrier Corporation Gear pump with dual pressure relief
US10682748B2 (en) 2017-12-19 2020-06-16 Caterpillar Inc. Auto-lubrication system for a work tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH399909A (en) * 1960-04-30 1965-09-30 Danfoss Ved Ing M Clausen Two-stage gear pump
GB1042778A (en) * 1964-06-09 1966-09-14 B & G Hydraulics Ltd Improvements in or relating to reversible gear pumps and motors
US4422834A (en) * 1981-05-07 1983-12-27 Trw Inc. Power steering pump
US20070140886A1 (en) * 2005-12-19 2007-06-21 Baxter Ralph W Jr Fluid pump assembly
WO2008146352A1 (en) * 2007-05-28 2008-12-04 Mikuni Corporation Pump

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1309094B1 (en) 1999-10-08 2002-01-16 Magneti Marelli Spa FIXED DISPLACEMENT ROTARY PUMP AND VARIABLE FLOW, PARTICULARLY FOR OIL.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH399909A (en) * 1960-04-30 1965-09-30 Danfoss Ved Ing M Clausen Two-stage gear pump
GB1042778A (en) * 1964-06-09 1966-09-14 B & G Hydraulics Ltd Improvements in or relating to reversible gear pumps and motors
US4422834A (en) * 1981-05-07 1983-12-27 Trw Inc. Power steering pump
US20070140886A1 (en) * 2005-12-19 2007-06-21 Baxter Ralph W Jr Fluid pump assembly
WO2008146352A1 (en) * 2007-05-28 2008-12-04 Mikuni Corporation Pump

Also Published As

Publication number Publication date
WO2011158167A2 (en) 2011-12-22
EP2582981A2 (en) 2013-04-24
ITTO20100516A1 (en) 2011-12-16
IT1401005B1 (en) 2013-07-05

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