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1. WO2007087704 - VARIABLE DISPLACEMENT VARIABLE PRESSURE VANE PUMP SYSTEM

Publication Number WO/2007/087704
Publication Date 09.08.2007
International Application No. PCT/CA2007/000118
International Filing Date 31.01.2007
IPC
F04C 14/22 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
14Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
18characterised by varying the volume of the working chamber
22by changing the eccentricity between cooperating members
F01M 1/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING
1Pressure lubrication
02using lubricating pumps
F04C 14/24 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
14Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
24characterised by using valves controlling pressure or flow rate, e.g. discharge valves
F04C 15/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
15Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/-F04C14/164
06Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F16N 13/20 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
NLUBRICATING
13Lubricating-pumps
20Rotary pumps
CPC
F01M 1/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
1Pressure lubrication
02using lubricating pumps
F01M 2001/0238
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
1Pressure lubrication
02using lubricating pumps
0207characterised by the type of pump
0238Rotary pumps
F04C 14/226
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
14Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
18characterised by varying the volume of the working chamber
22by changing the eccentricity between cooperating members
223using a movable cam
226by pivoting the cam around an eccentric axis
F04C 2/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
2Rotary-piston machines or pumps
02of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
04of internal axis type
F16N 13/20
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
NLUBRICATING
13Lubricating-pumps
20Rotary pumps
Applicants
  • MAGNA POWERTRAIN INC. [CA]/[CA] (AllExceptUS)
  • TANASUCA, Cezar [CA]/[CA] (UsOnly)
  • SHULVER, David R. [GB]/[CA] (UsOnly)
Inventors
  • TANASUCA, Cezar
  • SHULVER, David R.
Agents
  • IMAI, Jeffrey T.
Priority Data
60/763,72031.01.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) VARIABLE DISPLACEMENT VARIABLE PRESSURE VANE PUMP SYSTEM
(FR) SYSTEME DE POMPE A PALETTES A CYLINDREE VARIABLE ET A PRESSION VARIABLE
Abstract
(EN)
A traditional variable displacement vane pump must be designed to provide maximum fluid pressure and thus experiences reduced energy efficiency when the system operating conditions do not necessitate such high requirements. A variable displacement variable pressure vane pump system is provided comprising a first control mechanism, which can be a control chamber (68) directly acting on the control slider (36) or a control chamber (68) and control cylinder (44) which acts on the control slider (36) and a second control mechanism which is a control chamber (72) and control cylinder (44) which acts on the control slider (36). A control valve (76), operated by an engine control unit or other suitable control mechanism, selectively provides pressurized lubrication oil to the second control mechanism to allow the output of the pump system to more closely match the requirements of the mechanical system.
(FR)
L'invention vise à surmonter l'inconvénient des pompes à palettes traditionnelles à cylindrée variable, qui sont conçues pour assurer une pression maximale du fluide et subissent ainsi une baisse de rendement lorsque les conditions d'exploitation du système n'imposent pas d'exigences aussi élevées. Le système de pompe à palettes à cylindrée variable et à pression variable de l'invention comporte un premier mécanisme de régulation, qui peut être une chambre (68) de régulation agissant directement sur le curseur (36) de régulation ou une chambre (68) de régulation et un cylindre (44) de régulation agissant sur le curseur (36) de régulation et un deuxième mécanisme de régulation consistant en une chambre (72) de régulation et un cylindre (44) de régulation agissant sur le curseur (36) de régulation. Une vanne (76) de régulation, actionnée par une unité de régulation du moteur ou un autre mécanisme de régulation approprié, fournit sélectivement de l'huile de lubrification sous pression au deuxième mécanisme de régulation pour permettre aux caractéristiques de sortie du système de pompe de correspondre de plus près aux exigences du système mécanique.
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