FR2356020A1 - Pump peak pressure absorption system - varies volume available for fluid under control of pressure peaks themselves - Google Patents

Pump peak pressure absorption system - varies volume available for fluid under control of pressure peaks themselves

Info

Publication number
FR2356020A1
FR2356020A1 FR7537806A FR7537806A FR2356020A1 FR 2356020 A1 FR2356020 A1 FR 2356020A1 FR 7537806 A FR7537806 A FR 7537806A FR 7537806 A FR7537806 A FR 7537806A FR 2356020 A1 FR2356020 A1 FR 2356020A1
Authority
FR
France
Prior art keywords
positions
volume available
under control
fluid under
pump
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.)
Granted
Application number
FR7537806A
Other languages
French (fr)
Other versions
FR2356020B1 (en
Inventor
Bastenhof
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.)
MAN Energy Solutions France SAS
Original Assignee
Societe dEtudes de Machines Thermiques SEMT SA
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 Societe dEtudes de Machines Thermiques SEMT SA filed Critical Societe dEtudes de Machines Thermiques SEMT SA
Priority to FR7537806A priority Critical patent/FR2356020A1/en
Publication of FR2356020A1 publication Critical patent/FR2356020A1/en
Application granted granted Critical
Publication of FR2356020B1 publication Critical patent/FR2356020B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
    • 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
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
    • F04B11/0075—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons connected in series

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

The system absorbs peak pressures occurring in a pump inlet or outlet when the pump chamber is connected to one or the other, by varying the volume available for the fluid at one or more first positions. The variation is controlled by the pressure peaks themselves, recorded at second positions where they occur, between the first positions and the pump chamber. The command signals can be transmitted from the second to the first positions by mechanical means. In the case of a ram pump, particularly as used for diesel engine fuel injection, there can be one or more variable-volume chambers (40, 60) communicating with the inlet and outlet (21, 23), and with actuators (43, 63) sensitive to pressure peaks at points between these chambers and the pump chamber.
FR7537806A 1975-12-10 1975-12-10 Pump peak pressure absorption system - varies volume available for fluid under control of pressure peaks themselves Granted FR2356020A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7537806A FR2356020A1 (en) 1975-12-10 1975-12-10 Pump peak pressure absorption system - varies volume available for fluid under control of pressure peaks themselves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7537806A FR2356020A1 (en) 1975-12-10 1975-12-10 Pump peak pressure absorption system - varies volume available for fluid under control of pressure peaks themselves

Publications (2)

Publication Number Publication Date
FR2356020A1 true FR2356020A1 (en) 1978-01-20
FR2356020B1 FR2356020B1 (en) 1979-06-22

Family

ID=9163579

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7537806A Granted FR2356020A1 (en) 1975-12-10 1975-12-10 Pump peak pressure absorption system - varies volume available for fluid under control of pressure peaks themselves

Country Status (1)

Country Link
FR (1) FR2356020A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157335A2 (en) * 1984-03-29 1985-10-09 Societe D'etudes De Machines Thermiques S.E.M.T. Method for damping hydraulic pressure shocks or variations in the supply conduits of a hydraulic pump, and pump adapted thereto
WO2008077758A1 (en) * 2006-12-22 2008-07-03 Robert Bosch Gmbh High-pressure piston pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157335A2 (en) * 1984-03-29 1985-10-09 Societe D'etudes De Machines Thermiques S.E.M.T. Method for damping hydraulic pressure shocks or variations in the supply conduits of a hydraulic pump, and pump adapted thereto
EP0157335A3 (en) * 1984-03-29 1987-05-06 Societe D'etudes De Machines Thermiques S.E.M.T. Method for damping hydraulic pressure shocks or variations in the supply conduits of a hydraulic pump, and pump adapted thereto
WO2008077758A1 (en) * 2006-12-22 2008-07-03 Robert Bosch Gmbh High-pressure piston pump

Also Published As

Publication number Publication date
FR2356020B1 (en) 1979-06-22

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Legal Events

Date Code Title Description
ST Notification of lapse