FR2374534A1 - PERFECTION OF A VACUUM AND PRESSURE PUMP - Google Patents

PERFECTION OF A VACUUM AND PRESSURE PUMP

Info

Publication number
FR2374534A1
FR2374534A1 FR7637746A FR7637746A FR2374534A1 FR 2374534 A1 FR2374534 A1 FR 2374534A1 FR 7637746 A FR7637746 A FR 7637746A FR 7637746 A FR7637746 A FR 7637746A FR 2374534 A1 FR2374534 A1 FR 2374534A1
Authority
FR
France
Prior art keywords
pressure pump
ducts
perfection
vacuum
piston
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
FR7637746A
Other languages
French (fr)
Other versions
FR2374534B1 (en
Inventor
Dirk 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 FR7637746A priority Critical patent/FR2374534A1/en
Priority to DK408477A priority patent/DK408477A/en
Priority to SE7710292A priority patent/SE7710292L/en
Priority to NO773161A priority patent/NO773161L/en
Priority to CH1139677A priority patent/CH617751A5/en
Priority to IT46897/77A priority patent/IT1095661B/en
Priority to ES462683A priority patent/ES462683A1/en
Priority to DD7700201223A priority patent/DD131947A5/en
Priority to IN262/DEL/77A priority patent/IN147084B/en
Priority to AU29487/77A priority patent/AU2948777A/en
Priority to GB41762/77A priority patent/GB1571137A/en
Priority to JP12954677A priority patent/JPS5375505A/en
Priority to PL20179577A priority patent/PL201795A1/en
Priority to DE2749693A priority patent/DE2749693C3/en
Priority to NL7712294A priority patent/NL7712294A/en
Priority to FI773385A priority patent/FI773385A/en
Priority to BR7708006A priority patent/BR7708006A/en
Priority to BE183414A priority patent/BE861811A/en
Publication of FR2374534A1 publication Critical patent/FR2374534A1/en
Application granted granted Critical
Publication of FR2374534B1 publication Critical patent/FR2374534B1/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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
    • F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
    • F02M59/265—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders characterised by the arrangement or form of spill port of spill contour on the piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

Perfectionnement à une pompe aspirante et foulante, destiné à préserver les conduits d'alimentation et de décharge ainsi que le piston, de l'usure par cavitation. Selon l'invention, le conduit d'alimentation et de décharge est remplacé par plusieurs conduits rapprochés et sensiblement parallèles, 20, 22, tandis qu'une communication obtenue par une creusure 27 est ménagée entre les conduits précités au niveau de leurs orifices de sortie 20a, 22a dans l'alesage 12 du piston 13. L'invention s'applique notamment pour les pompes d'injection de combustible dans les moteurs Diesel.Improvement to a suction and pressure pump, intended to protect the supply and discharge ducts as well as the piston, from wear by cavitation. According to the invention, the supply and discharge duct is replaced by several closely spaced and substantially parallel ducts, 20, 22, while a communication obtained by a recess 27 is made between the aforementioned ducts at their outlet orifices. 20a, 22a in the bore 12 of the piston 13. The invention applies in particular to fuel injection pumps in diesel engines.

FR7637746A 1976-12-15 1976-12-15 PERFECTION OF A VACUUM AND PRESSURE PUMP Granted FR2374534A1 (en)

Priority Applications (18)

Application Number Priority Date Filing Date Title
FR7637746A FR2374534A1 (en) 1976-12-15 1976-12-15 PERFECTION OF A VACUUM AND PRESSURE PUMP
DK408477A DK408477A (en) 1976-12-15 1977-09-14 SUCK AND PRESSURE PUMP
SE7710292A SE7710292L (en) 1976-12-15 1977-09-14 DEVICE FOR SUCTION AND PRESSURE PUMP
NO773161A NO773161L (en) 1976-12-15 1977-09-14 DEVICE FOR SUCTION AND PRESSURE PUMP.
CH1139677A CH617751A5 (en) 1976-12-15 1977-09-19 Lifting and forcing pump
IT46897/77A IT1095661B (en) 1976-12-15 1977-09-23 REFINEMENTS MADE TO A SUCTION AND PREMENT PUMP
DD7700201223A DD131947A5 (en) 1976-12-15 1977-09-27 IMPROVEMENT TO A SUCTION AND PRESSURE PUMP
ES462683A ES462683A1 (en) 1976-12-15 1977-09-27 Fuel injection pump
IN262/DEL/77A IN147084B (en) 1976-12-15 1977-09-28
AU29487/77A AU2948777A (en) 1976-12-15 1977-10-07 Pump
GB41762/77A GB1571137A (en) 1976-12-15 1977-10-07 Fuel injection pump
JP12954677A JPS5375505A (en) 1976-12-15 1977-10-28 Suction and feeding pump
PL20179577A PL201795A1 (en) 1976-12-15 1977-10-28 THE SUCTION PUMP AND THE MANUFACTURING METHOD OF THE SUCTION PUMP
DE2749693A DE2749693C3 (en) 1976-12-15 1977-11-07 High pressure piston pump
NL7712294A NL7712294A (en) 1976-12-15 1977-11-08 SUCTION AND PRESSURE PUMP.
FI773385A FI773385A (en) 1976-12-15 1977-11-10 FOERBAETTRAD SUG-OCH MATNINGSPUMP
BR7708006A BR7708006A (en) 1976-12-15 1977-12-01 PERFECTING IN A VACUUM CLEANER AND COMPRESSOR
BE183414A BE861811A (en) 1976-12-15 1977-12-14 PERFECTION OF A VACUUM AND PRESSURE PUMP

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7637746A FR2374534A1 (en) 1976-12-15 1976-12-15 PERFECTION OF A VACUUM AND PRESSURE PUMP

Publications (2)

Publication Number Publication Date
FR2374534A1 true FR2374534A1 (en) 1978-07-13
FR2374534B1 FR2374534B1 (en) 1979-08-17

Family

ID=9181074

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7637746A Granted FR2374534A1 (en) 1976-12-15 1976-12-15 PERFECTION OF A VACUUM AND PRESSURE PUMP

Country Status (18)

Country Link
JP (1) JPS5375505A (en)
AU (1) AU2948777A (en)
BE (1) BE861811A (en)
BR (1) BR7708006A (en)
CH (1) CH617751A5 (en)
DD (1) DD131947A5 (en)
DE (1) DE2749693C3 (en)
DK (1) DK408477A (en)
ES (1) ES462683A1 (en)
FI (1) FI773385A (en)
FR (1) FR2374534A1 (en)
GB (1) GB1571137A (en)
IN (1) IN147084B (en)
IT (1) IT1095661B (en)
NL (1) NL7712294A (en)
NO (1) NO773161L (en)
PL (1) PL201795A1 (en)
SE (1) SE7710292L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3804843A1 (en) * 1988-02-17 1989-08-31 Bosch Gmbh Robert FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES
GB9522742D0 (en) * 1995-11-07 1996-01-10 Lucas Ind Plc Diesel engine fuel pump
JP3525883B2 (en) * 1999-12-28 2004-05-10 株式会社デンソー Fuel injection pump
DE10046564B4 (en) * 2000-09-19 2005-07-21 L'orange Gmbh Injection pump for internal combustion engines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
DK408477A (en) 1978-06-16
AU2948777A (en) 1979-04-12
DE2749693C3 (en) 1979-09-13
FR2374534B1 (en) 1979-08-17
BR7708006A (en) 1978-07-25
DE2749693B2 (en) 1979-01-11
JPS5375505A (en) 1978-07-05
FI773385A (en) 1978-06-16
IN147084B (en) 1979-11-03
GB1571137A (en) 1980-07-09
CH617751A5 (en) 1980-06-13
PL201795A1 (en) 1978-07-03
SE7710292L (en) 1978-06-16
DD131947A5 (en) 1978-08-09
NO773161L (en) 1978-06-16
NL7712294A (en) 1978-06-19
DE2749693A1 (en) 1978-06-22
IT1095661B (en) 1985-08-17
BE861811A (en) 1978-06-14
ES462683A1 (en) 1978-12-16

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Legal Events

Date Code Title Description
ST Notification of lapse