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1. WO2001061193 - HIGH PRESSURE PUMP AND ENGINE SYSTEM USING THE SAME

Publication Number WO/2001/061193
Publication Date 23.08.2001
International Application No. PCT/US2001/005413
International Filing Date 20.02.2001
IPC
F04B 1/28 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
1Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
12having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
26Control
28of machines or pumps with stationary cylinders
F04B 7/04 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
7Piston machines or pumps characterised by having positively-driven valving
04in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
F04B 49/22 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
49Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups F04B1/-F04B47/196
22by means of valves
CPC
F04B 1/28
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
1Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
12having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
26Control
28of machines or pumps with stationary cylinders
F04B 2201/06011
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
2201Pump parameters
06Valve parameters
0601Opening times
06011of the inlet valve only
F04B 2205/05
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
2205Fluid parameters
05Pressure after the pump outlet
F04B 49/225
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
49Control ; , e.g. of pump delivery, or pump pressure; of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
22by means of valves
225with throttling valves or valves varying the pump inlet opening or the outlet opening
F04B 7/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
7Piston machines or pumps characterised by having positively-driven valving
04in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
Applicants
  • CATERPILLAR INC. [US]/[US] (AllExceptUS)
  • BLASS, James, R. [US]/[US] (UsOnly)
  • WEAR, Jerry, A. [US]/[US] (UsOnly)
  • SOMMARS, Mark, F. [US]/[US] (UsOnly)
  • GIBSON, Dennis, H. [US]/[US] (UsOnly)
  • MATTA, George, M. [US]/[US] (UsOnly)
Inventors
  • BLASS, James, R.
  • WEAR, Jerry, A.
  • SOMMARS, Mark, F.
  • GIBSON, Dennis, H.
  • MATTA, George, M.
Agents
  • CHEEK, John, J.
Priority Data
60/183,37518.02.2000US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) HIGH PRESSURE PUMP AND ENGINE SYSTEM USING THE SAME
(FR) POMPE A HAUTE PRESSION ET SYSTEME DE MOTEUR COMPRENANT CETTE DERNIERE
Abstract
(EN) A high pressure pump system (14) for use with a hydraulic engine system (10), such as a fuel injection system (10) or a compression release brake system, provides variable delivery of pressurized fluid using sleeve metering principles. The relative position of metering sleeves (56) with respect to pumping pistons (32) is controlled electro-hydraulically by a control circuit (60, 160). The control circuit (60, 160) receives pressurized fluid from the pump delivery gallery (50) or another high pressure area (50, 52) and, using a pressure reducer (64, 164), reduces the operating pressure within the control circuit (60, 160) to a substantially constant pressure lower than the pump output pressure. Lower operating pressure within the control circuit (60, 160) improves the manufacturability of the control circuit components and helps to achieve better control of the pump output.
(FR) Un système (14) de pompe à haute pression destiné à être utilisé avec un système (10) de moteur hydraulique tel qu'un système (10) d'injection de carburant ou qu'un système de frein à commande de décompression assure la distribution variable d'un fluide sous pression au moyen de manchons doseurs. La position relative des manchons doseurs (56) par rapport aux pistons (32) de pompage est régulée de manière électro-hydraulique par un circuit (60, 160) de commande. Le circuit (60, 160) de commande reçoit le fluide sous pression du passage (50) d'apport de fluide ou d'une autre région haute pression (50, 52) et, au moyen d'un détendeur (64, 164) réduit sensiblement la pression effective à l'intérieur du circuit (60, 160) de commande à une pression constante qui est sensiblement inférieure à la pression de refoulement. Une pression effective plus faible à l'intérieur du circuit (60, 160) de commande améliore la fabricabilité des constituants du circuit de commande et permet de mieux contrôler la sortie de la pompe.
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