SU884583A3 - Fuel pump - Google Patents

Fuel pump Download PDF

Info

Publication number
SU884583A3
SU884583A3 SU721828742A SU1828742A SU884583A3 SU 884583 A3 SU884583 A3 SU 884583A3 SU 721828742 A SU721828742 A SU 721828742A SU 1828742 A SU1828742 A SU 1828742A SU 884583 A3 SU884583 A3 SU 884583A3
Authority
SU
USSR - Soviet Union
Prior art keywords
sleeve
suction chamber
bore
casing
fuel
Prior art date
Application number
SU721828742A
Other languages
Russian (ru)
Inventor
Хофманн Эберхард
Штаудт Хейнрих
Эккель Вольфганг
Кноррек Петер
Original Assignee
Роберт Бош Гмбх (Фирма)
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
Priority claimed from DE19712146797 external-priority patent/DE2146797C3/en
Priority claimed from DE19712150973 external-priority patent/DE2150973A1/en
Application filed by Роберт Бош Гмбх (Фирма) filed Critical Роберт Бош Гмбх (Фирма)
Application granted granted Critical
Publication of SU884583A3 publication Critical patent/SU884583A3/en

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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
    • F02M55/001—Pumps with means for preventing erosion on fuel discharge
    • 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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/48—Assembling; Disassembling; Replacing
    • F02M59/485—Means for fixing delivery valve casing and barrel to each other or to pump casing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock

Landscapes

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

Abstract

1398743 Fuel injection pumps ROBERT BOSCH GmbH 15 Sept 1972 [18 Sept 1971 13 Oct 1971] 42796/72 Heading F1A A fuel injection pump comprises a casing 10, a body 13 defining a cylinder bore 17 and having a mounting flange 15 clamped by screws 48 against an upper face 11 of the casing, and a pressure valve 36 held against a shoulder 42 in an extension 38 of the cylinder bore 17 by a nipple 39 screwed into an internal thread 41 in the end of the extension bore 38 remote from the cylinder bore 17. The body 13 is located in a bore 12 in the casing and its reduced diameter end 14 is disposed with a clearance a in a bore 12a. O-rings 58, 62 are provided for preventing leakage past the body from a suction chamber 24. In operation fuel from the suction chamber 24 enters the working chamber 21 through a control port 22 covered by upward movement of the piston 18 and uncovered, to terminate delivery, by an oblique edge 25 on the piston 18. Thus fuel in the chamber 21 spills into the suction chamber 24 where it is intercepted by a baffle ring 53 secured by a snap ring 54. Various dimensional relationships between parts are specified.

Description

Изобретение относитс  к машиностроению , преимущественно к топливн насосам двигателей внутреннего сгорани  , Известны топливные насосы двигат лей внутреннего сгорани , содержащи корпус из легкого металла, закрепле ную в нем гильзу с регулирующими отверсти ми и камерой всасывани , причем в цилиндрическом отверстии гильзы размещены поршень дл  измере ни  подачи горючего, снабженный по меньшей мере одной наклонной направ л ющей кромкой, а в расширении цилиндрического отверсти  гильзы размещены нагнетательный клапан, корпу которого закреплен в гильзе при пом щи ниппел , св занного с ней резьбовым соединением, причем гильза сопр жена с корпусом через опорный бурт, размещенный на ее наружной поверхности над регулирующими отвер сти ми 1 . Недостатком известного насоса  вл етс  то, что крепление гильзы в корпусе не обеспечивает достаточной жесткости соединени , что приво дит к по влению изгибающих усилий при работе насоса и к снижению надежности гильзы и насоса в целом. Цель изобретени  - повышение надежности путем устранени -изгибающих усилий. Поставленна  цель достигаетс  тем, что гильза выполнена с фланцем, расположенным в зоне резьбового соединени  и имеет уменьшенный диаметр в зоне ниже камеры всасывани  дл  установки в корпусе с зазором. На чертеже представлен насос,прюдольный разрез. Топливный насос содержит корпус 1, в котором закреплена гильза 2 с камерой 3 и нагнетательным клапаном 4. Гильза 2 сопр жена с корпусом 1 при помощи опорного бурта 5, размещенного на наружной поверхности гильзы 2 над ее регулирующими отверсти ми 6. Ниппель 7 св зан с гильзой 2 резьбовым соединением 8, На гильзе выполнен фланец 9, расположенный в зоне резьбового соединени  8,а в зоне ниже камеры 3 дл  установки в корпусе 1 с зазором гильза 2 имеет уменьшенный диаметр. При сборке насоса зазор между гильзой 2 и корпусом 1 компенсирует наружные, силы, возникающие при монтаже и предохран ет гильзу от короблени . Фланец 9, расположенный вThe invention relates to mechanical engineering, mainly to fuel pumps of internal combustion engines. Fuel injection pumps for internal combustion engines are known, comprising a body of light metal, a sleeve with control holes and an intake chamber mounted in it, and a piston for measuring fuel supply, provided with at least one inclined guide edge, and in the expansion of the cylindrical opening of the sleeve there is a discharge valve, the body of which is Replen in the liner using the nipple connected to it by a threaded connection, the liner being coupled to the body through a support shoulder located on its outer surface above the adjusting holes 1. A disadvantage of the known pump is that the mounting of the sleeve in the housing does not provide sufficient rigidity of the connection, which leads to the appearance of bending forces during the operation of the pump and to a decrease in the reliability of the sleeve and the pump as a whole. The purpose of the invention is to increase reliability by eliminating bending forces. This goal is achieved by the fact that the sleeve is made with a flange located in the area of the threaded connection and has a reduced diameter in the area below the suction chamber for installation in a housing with a gap. The drawing shows the pump, pryudolny incision. The fuel pump includes a housing 1 in which a liner 2 is fixed with a chamber 3 and a discharge valve 4. The liner 2 is coupled to the housing 1 by means of a support collar 5 placed on the outer surface of the liner 2 above its regulating openings 6. Nipple 7 is connected a sleeve 2 with a threaded connection 8; A sleeve 9 has a flange 9 located in the area of the threaded connection 8; and in the area below the chamber 3 for mounting in the housing 1 with a gap, the sleeve 2 has a reduced diameter. When assembling the pump, the gap between the liner 2 and the housing 1 compensates for the external forces arising during installation and prevents the liner from warping. Flange 9 located in

Claims (1)

Формула изобретенияClaim Топливный насос двигателя внутреннего сгорания, содержащий корпус из легкого металла, закрепленную в нем 15 гильзу с регулирующими отверстиями’ и камерой всасывания, причем в цилиндрическом отверстии гильзы размещен поршень для изменения подачи горючего, снабженный по меньшей мере jq одной наклонной направляющей кромкой, а в расширении цилиндрического отверстия гильзы размещен нагнетательный клапан, корпус которого за креплен в гильзе при помощи ниппеля, связанного с ней резьбовым соединением, причем гильза сопряжена с корпусом через опорный бурт, размещенный на ее наружной поверхности над регулирующими отверстиями, отличающийся , тем, что, с целью повышения надежности путем устранения изгибающих усилий, гильза выполнена с фланцем, расположенным в зоне резьбового соединения и имеет уменьшенный диаметр в зоне ниже камеры всасывания для установки в корпусе с зазором.A fuel pump of an internal combustion engine, comprising a light metal housing, a 15 sleeve with control holes' and a suction chamber fixed in it, a piston for changing the fuel supply, provided with at least jq one inclined guide edge, is located in the cylindrical hole of the sleeve, and in the extension a cylindrical bore of the sleeve there is a discharge valve, the body of which is fastened in the sleeve by means of a nipple connected to it by a threaded connection, and the sleeve is interfaced with the body through a pork shoulder located on its outer surface above the control holes, characterized in that, in order to increase reliability by eliminating bending forces, the sleeve is made with a flange located in the area of the threaded connection and has a reduced diameter in the area below the suction chamber for installation in the housing with a gap. Приоритет по признакам:Priority by signs: 18.09.71 - гильза выполнена с фланцем, расположенным в зоне резьбового соединения.09/18/71 - the sleeve is made with a flange located in the area of the threaded connection. 13.10.71 - имеет уменьшенный диаметр в зоне ниже камеры всасывания для установки в корпусе с зазором.13.10.71 - has a reduced diameter in the area below the suction chamber for installation in the housing with a gap.
SU721828742A 1971-09-18 1972-09-15 Fuel pump SU884583A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19712146797 DE2146797C3 (en) 1971-09-18 1971-09-18 Fuel injection pump for internal combustion engines
DE19712150973 DE2150973A1 (en) 1971-10-13 1971-10-13 FUEL INJECTION PUMP FOR COMBUSTION MACHINES

Publications (1)

Publication Number Publication Date
SU884583A3 true SU884583A3 (en) 1981-11-23

Family

ID=25761757

Family Applications (1)

Application Number Title Priority Date Filing Date
SU721828742A SU884583A3 (en) 1971-09-18 1972-09-15 Fuel pump

Country Status (11)

Country Link
JP (1) JPS5618788B2 (en)
AT (1) AT315578B (en)
BE (1) BE788979A (en)
CS (1) CS158589B2 (en)
ES (1) ES406764A1 (en)
FR (1) FR2153961A5 (en)
GB (1) GB1398743A (en)
IT (1) IT967551B (en)
PL (1) PL84908B1 (en)
RO (1) RO60781A (en)
SU (1) SU884583A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4222081A1 (en) * 1992-07-04 1994-01-05 Kloeckner Humboldt Deutz Ag Diesel internal combustion engine - has fuel injection equipment incorporating injection pump with pump bush, pump being fixed to housing so that bush is not deformed.

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT391350B (en) * 1985-07-17 1990-09-25 Bosch Robert Ag FUEL INJECTION PUMP
DE3300030A1 (en) * 1983-01-03 1984-07-05 Klöckner-Humboldt-Deutz AG, 5000 Köln INJECTION PUMP FOR DIESEL INTERNAL COMBUSTION ENGINES
AT388214B (en) * 1983-02-17 1989-05-26 Steyr Daimler Puch Ag FUEL INJECTION UNIT FOR ONE CYLINDER OF A DIESEL ENGINE
GB2135395B (en) * 1983-02-14 1987-03-18 Steyr Daimler Puch Ag Fuel-injection unit for each cylinder of a diesel engine
EP0117219A3 (en) * 1983-02-17 1986-08-06 Ail Corporation Arrangement for adjusting axial positioning of injection barrel in fuel injection pump
JPS6026151A (en) * 1983-07-22 1985-02-09 Shinagawa Diecast Kogyo Kk Accelerator for film type carburetor
AT386462B (en) * 1984-02-15 1988-08-25 Bosch Robert Ag FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES
JPS60146481U (en) * 1984-03-12 1985-09-28 高木　正恭 tablet
JPS62183780U (en) * 1986-05-13 1987-11-21
WO2000047888A1 (en) * 1999-02-09 2000-08-17 Hitachi, Ltd. High-pressure fuel feed pump of internal combustion engine
DE102012211104A1 (en) * 2012-06-28 2014-01-02 Robert Bosch Gmbh High-pressure fuel pump for a fuel system of an internal combustion engine
DE102017207207A1 (en) * 2017-04-28 2018-10-31 Robert Bosch Gmbh Fuel pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4222081A1 (en) * 1992-07-04 1994-01-05 Kloeckner Humboldt Deutz Ag Diesel internal combustion engine - has fuel injection equipment incorporating injection pump with pump bush, pump being fixed to housing so that bush is not deformed.
DE4222081C2 (en) * 1992-07-04 2003-09-04 Deutz Ag Diesel engine

Also Published As

Publication number Publication date
GB1398743A (en) 1975-06-25
ES406764A1 (en) 1976-05-16
FR2153961A5 (en) 1973-05-04
CS158589B2 (en) 1974-11-25
AT315578B (en) 1974-05-27
BE788979A (en) 1973-01-15
PL84908B1 (en) 1976-04-30
IT967551B (en) 1974-03-11
JPS5618788B2 (en) 1981-05-01
RO60781A (en) 1976-08-15
JPS4837516A (en) 1973-06-02

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