ATE331139T1 - HYDRAULIC PUMP - Google Patents

HYDRAULIC PUMP

Info

Publication number
ATE331139T1
ATE331139T1 AT03257660T AT03257660T ATE331139T1 AT E331139 T1 ATE331139 T1 AT E331139T1 AT 03257660 T AT03257660 T AT 03257660T AT 03257660 T AT03257660 T AT 03257660T AT E331139 T1 ATE331139 T1 AT E331139T1
Authority
AT
Austria
Prior art keywords
pump
delivery
fuel
plunger
filling
Prior art date
Application number
AT03257660T
Other languages
German (de)
Inventor
Geoffrey D Bootle
Original Assignee
Delphi Tech Inc
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 Delphi Tech Inc filed Critical Delphi Tech Inc
Application granted granted Critical
Publication of ATE331139T1 publication Critical patent/ATE331139T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0408—Pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/06—Control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, 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
    • F04B49/12—Control, 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 by varying the length of stroke of the working members
    • F04B49/121—Lost-motion device in the driving mechanism
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/04—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

A sinusoidal hydraulic pump that is particularly suitable for use as a high pressure pump for a fuel injection system of a compression ignition engine. The pump includes first and second plungers, a filling plunger (110) and a delivery plunger (112), each of which is reciprocable within a respective bore (120, 122) provided in a pump housing (124) under the influence of a respective cam (114, 116) mounted upon a common cam shaft (118). The bores (120, 122) communicate with each other at their uppermost ends (in the orientation shown) and define, together with end surfaces of the filling and delivery plungers (110, 112), a pump chamber (126) for receiving fuel through a pump inlet port (130) provided in a wall of the pump housing (124). The filling plunger (110) cooperates with the inlet port (130) to provide a means for controlling fuel flow into the pump chamber (126) from a low pressure fuel supply. A delivery port (132) is also provided in the pump housing (124) in the region of the bore (122), and the outer surface of the delivery plunger (112) cooperates with the delivery port (132) to provide a means for controlling the delivery of pressurised fuel from the pump chamber (126) to a high pressure fuel volume. <IMAGE>
AT03257660T 2002-12-06 2003-12-05 HYDRAULIC PUMP ATE331139T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0228559.1A GB0228559D0 (en) 2002-12-06 2002-12-06 Hydraulic pump

Publications (1)

Publication Number Publication Date
ATE331139T1 true ATE331139T1 (en) 2006-07-15

Family

ID=9949250

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03257660T ATE331139T1 (en) 2002-12-06 2003-12-05 HYDRAULIC PUMP

Country Status (4)

Country Link
EP (1) EP1435456B1 (en)
AT (1) ATE331139T1 (en)
DE (1) DE60306319T2 (en)
GB (1) GB0228559D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8496449B2 (en) 2006-11-21 2013-07-30 Actuant Corporation Air driven hydraulic pump
KR101030794B1 (en) * 2010-07-27 2011-04-27 천세산업 주식회사 Pulseless metering pump using dual constant velocity cam

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1100024A (en) * 1963-10-30 1968-01-24 Janusz Gutkowski Improvements in or relating to reciprocating pumps and compressors
DE2946529A1 (en) * 1979-11-17 1981-05-27 Frieseke & Hoepfner Gmbh, 8520 Erlangen PRESSURE-CONTROLLED MULTI-CYLINDER PISTON PUMP
KR0175879B1 (en) * 1995-07-31 1999-10-01 김광호 Piston apparatus of a reciprocating compressor
GB2366336A (en) * 2000-08-31 2002-03-06 Delphi Tech Inc Fuel pump

Also Published As

Publication number Publication date
EP1435456A3 (en) 2005-05-11
EP1435456B1 (en) 2006-06-21
GB0228559D0 (en) 2003-01-15
DE60306319T2 (en) 2007-06-14
EP1435456A2 (en) 2004-07-07
DE60306319D1 (en) 2006-08-03

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties