FI84093B - INSPRUTNINGSPUMP FOER BRAENSLE. - Google Patents
INSPRUTNINGSPUMP FOER BRAENSLE. Download PDFInfo
- Publication number
- FI84093B FI84093B FI894055A FI894055A FI84093B FI 84093 B FI84093 B FI 84093B FI 894055 A FI894055 A FI 894055A FI 894055 A FI894055 A FI 894055A FI 84093 B FI84093 B FI 84093B
- Authority
- FI
- Finland
- Prior art keywords
- chamber
- piston member
- fuel
- pressure
- lubricating oil
- Prior art date
Links
- 239000000446 fuel Substances 0.000 claims description 27
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 239000010687 lubricating oil Substances 0.000 claims description 15
- 239000003921 oil Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 239000000243 solution Substances 0.000 description 2
- 208000035859 Drug effect increased Diseases 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0001—Fuel-injection apparatus with specially arranged lubricating system, e.g. by fuel oil
-
- 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
- F02M59/442—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 means preventing fuel leakage around pump plunger, e.g. fluid barriers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Description
8409384093
POLTTOAINEEN RUISKUTUSPUMPPU - INSPRUTNINGSPUMP FÖR BRÄNSLEFUEL INJECTION PUMP - INSPRUTNINGSPUMP FÖR BRÄNSLE
Keksinnön kohteena on patenttivaatimuksen 1 johdanto-osan mukainen polttoaineen tms. paineväliaineen ruiskutuspumppu.The invention relates to a fuel or similar pressure medium injection pump according to the preamble of claim 1.
Polttomoottoreissa käytettävissä ruiskutuspumpuissa, joissa polttoaine pumpun mäntäelimen avulla ensin puristetaan kovaan 5 paineeseen ja sen jälkeen syötetään edelleen moottorin sylinteriin, polttoainetta pääsee juuri korkean paineen johdosta vuotamaan myös mäntäelimen vaippapinnan ja pumppu-kammion sisäpinnan väliin aiheuttaen likaantumista ja korroosiota. Lisäksi tällainen vuotava polttoaine kulkeutuu 10 kampikammioon ja sekoittuu voiteluöljyyn, mistä on seurauk sena moottorin voiteluöljyn ominaisuuksien muuttuminen epätoivotulla tavalla.In injection pumps for internal combustion engines, where the fuel is first pressed to a high pressure by the pump piston member and then fed to the engine cylinder, fuel can also leak between the piston member casing and the pump chamber inner surface due to high pressure, causing fouling and corrosion. In addition, such leaking fuel enters the crankcase 10 and mixes with the lubricating oil, resulting in an undesired change in the properties of the engine lubricating oil.
Keksinnön tarkoituksena on aikaansaada rakenteeltaan ja toiminnaltaan yksinkertainen ratkaisu mainitun ongelman 15 ehkäisemiseksi.The object of the invention is to provide a solution with a simple structure and function in order to prevent said problem.
Keksinnön tavoitteet saavutetaan patenttivaatimuksessa 1 määritetyllä ratkaisulla, jota on alivaatimuksissa edelleen täsmennetty. Keksinnön mukaan ruiskutuspumpun pumppukammio ja mäntäelin määrittävät pumppukammion polttoainetta sisäl-20 tävästä painetilasta erillään olevan lisäkammion, joka on täytetty voiteluöljyllä ja jonka tilavuuteen mäntäelin liikkeellään vaikuttaa. Näin ollen sama mäntäelin liikkeellään puristaa sekä polttoainetta että mainitussa lisäkam-miossa olevaa voiteluöljyä aikaansaaden männän vaippapintaa 2b pitkin tapahtuvia polttoainevuotoja ehkäisevän vastapaineen.The objects of the invention are achieved by the solution defined in claim 1, which is further specified in the subclaims. According to the invention, the pump chamber and the piston member of the injection pump define an additional chamber separate from the fuel-containing pressure space of the pump chamber, which is filled with lubricating oil and whose volume is affected by the movement of the piston member. Thus, the same piston member in its motion compresses both the fuel and the lubricating oil in said additional chamber, providing a back pressure to prevent fuel leaks along the piston jacket surface 2b.
Samalla tapahtuu myös mäntäelimen ja pumppukammion sisäpinnan voitelu ja tiivistäminen.At the same time, the inner surface of the piston member and the pump chamber is lubricated and sealed.
Käytännössä mainittu lisäkammio aikaansaadaan yksinkertaisesti muuttamalla sekä pumppukammion että mäntäelimen halkai-30 sijaa niin että syntyy porrastus. Järjestämällä mainitun porrastuksen ohjausreuna peittämään sen kanavan suun, jolla voiteluöljyä syötetään mainittuun lisäkammioon, voidaan 2 84093 voiteluöljyn painetta oleellisesti kasvattaa ja vaikutusta lisätä juuri silloin kun polttoaineen paine pumppukammion painetilassa on korkeimmillaan ja vuotoriski suurimmillaan.In practice, said additional chamber is obtained simply by changing the diameter of both the pump chamber and the piston member so that a step is created. By arranging the leading edge of said step to cover the mouth of the duct through which the lubricating oil is fed to said additional chamber, the pressure of 2 84093 lubricating oil can be substantially increased and the effect increased just when the fuel pressure in the pump chamber pressure is at its highest and the risk of leakage is greatest.
Pumppukammion painetilan ja mainitun lisäkammion väliin 5 voidaan edullisesti järjestää vuotoura ylimääräisen voitelu- öljyn sekä mahdollisen polttoaineen keräämiseksi ja poisjohta-miseksi. Lisäksi mainitun vuotoöljyuran ja pumppukammion painetilan väliin voidaan vielä järjestää toinen polttoaineen sisäänsyöttökanavaan yhteydessä oleva ura, joka alentaa myös 10 pumppukammion ja mäntäelimen välyksessä vaikuttavaa korkeaa polttoaineen ruiskutuspainetta. Siten tämä lisäura osaltaan ehkäisee polttoaineen virtaamista alemmas välyksessä mainittuun varsinaiseen vuotoöljyuraan ja vähentää siten vuotopolt-toainevirtausta ulos ruiskutuspumpusta.Between the pressure space of the pump chamber and said additional chamber 5, a leakage groove can advantageously be provided for collecting and draining excess lubricating oil and any fuel. In addition, a second groove connected to the fuel supply channel can be provided between said leakage oil groove and the pressure chamber of the pump chamber, which also reduces the high fuel injection pressure acting in the clearance between the pump chamber and the piston member. Thus, this additional groove contributes to preventing the flow of fuel into the actual leakage oil groove mentioned in the lower clearance and thus reduces the leakage fuel flow out of the injection pump.
15 Keksintöä selostetaan seuraavassa tarkemmin viitaten ohei seen piirustukseen, jonka ainoa kuvio esittää periaateratkaisuna erästä keksinnön mukaista polttoaineen ruiskutus-pumpun sovellusmuotoa leikattuna.The invention will now be described in more detail with reference to the accompanying drawing, the only figure of which shows in principle a sectional view of an embodiment of a fuel injection pump according to the invention.
Piirustuksessa tarkoittaa viitenumero 1 ruiskutuspumpun 20 sylinterielementtiä, jossa on pumppukammio 6, joka on varustettu polttoaineen sisäänsyöttökanavalla 3 ja ulosruis-kutuskanavalla 7, joka johtaa paineohjattuun ruiskutusvent-tiiliin. Pumppukammiossa on edestakaisin liikkuva mäntäelin 2, joka liikkeellään aikaansaa polttoaineen puristamisen 25 korkeaan paineeseen pumppukammion painetilassa 11.In the drawing, reference numeral 1 denotes a cylinder element of an injection pump 20 having a pump chamber 6 provided with a fuel inlet duct 3 and an ejection duct 7 leading to a pressure-controlled injection valve. The pump chamber has a reciprocating piston member 2 which, by its movement, causes the fuel 25 to be compressed to a high pressure in the pressure space 11 of the pump chamber.
Ruiskutuspumppu käsittää myös lisäkammion 4, johon syötetään voiteluöljyä pitkin kanavaa 8, jonka syöttöaukkoa on merkitty viitenumerolla 12. Pumppukammion painetilan 11 sekä lisäkammion 4 väliin on järjestetty vuotoöljyura 13 ylimääräisen 30 voiteluöljyn sekä mahdollisen vuotaneen polttoaineen keräämi seksi ja edelleen poisjohtamiseksi kanavaa 9 pitkin. Lisäksi vuotoöljyuran 13 ja painetilan 11 välissä on lisäura 14, joka on kanavan 10 kautta yhdistetty polttoaineen sisäänsyöttökanavaan 3 ja joka siten alentaa myös pumppukammion 6 jaThe injection pump also comprises an additional chamber 4 to which lubricating oil is fed along a channel 8, the supply port of which is indicated by reference number 12. A leakage oil groove 13 is provided between the pump chamber pressure chamber 11 and the additional chamber 4 to collect additional 30 lubricating oil and any spilled fuel In addition, between the leakage oil groove 13 and the pressure space 11 there is an additional groove 14 which is connected to the fuel supply duct 3 via the duct 10 and which thus also lowers the pump chamber 6 and
Claims (4)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI894055A FI84093C (en) | 1989-08-30 | 1989-08-30 | INSPRUTNINGSPUMP FOER BRAENSLE. |
DE19904026689 DE4026689A1 (en) | 1989-08-30 | 1990-08-23 | Fuel injection pump - has additional oil-filled chamber formed by pump chamber and piston |
GB9018810A GB2237074A (en) | 1989-08-30 | 1990-08-29 | Injection pump for fuel supply to an engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI894055 | 1989-08-30 | ||
FI894055A FI84093C (en) | 1989-08-30 | 1989-08-30 | INSPRUTNINGSPUMP FOER BRAENSLE. |
Publications (4)
Publication Number | Publication Date |
---|---|
FI894055A0 FI894055A0 (en) | 1989-08-30 |
FI894055A FI894055A (en) | 1991-03-03 |
FI84093B true FI84093B (en) | 1991-06-28 |
FI84093C FI84093C (en) | 1991-10-10 |
Family
ID=8528911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI894055A FI84093C (en) | 1989-08-30 | 1989-08-30 | INSPRUTNINGSPUMP FOER BRAENSLE. |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE4026689A1 (en) |
FI (1) | FI84093C (en) |
GB (1) | GB2237074A (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4409555C2 (en) * | 1994-03-19 | 2003-04-17 | Caterpillar Motoren Gmbh & Co | Device for generating pressure for a pressure oil lock of an injection pump |
DE19527719A1 (en) * | 1995-07-31 | 1997-02-06 | Woodward Governor Germany Gmbh | Fuel injection system |
AT6427U1 (en) * | 2000-05-18 | 2003-10-27 | Avl List Gmbh | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OPERATING WITH LIQUID GAS |
ITPN20000066A1 (en) * | 2000-10-20 | 2002-04-20 | Wartsila Nsd Italia Spa | POWER SUPPLIES PERFECTED IN DIESEL ENGINES NAMED "COMMON RAIL" |
JP4304887B2 (en) * | 2001-06-19 | 2009-07-29 | 株式会社デンソー | Fuel supply system for alternative fuels |
DE10134068A1 (en) * | 2001-07-13 | 2003-01-30 | Bosch Gmbh Robert | Internal combustion engine, in particular for motor vehicles |
US8061328B2 (en) | 2005-03-09 | 2011-11-22 | Caterpillar Inc. | High pressure pump and method of reducing fluid mixing within same |
JP4386030B2 (en) * | 2005-12-02 | 2009-12-16 | トヨタ自動車株式会社 | High pressure pump |
JP4625789B2 (en) | 2006-07-20 | 2011-02-02 | 日立オートモティブシステムズ株式会社 | High pressure fuel pump |
DE102007019909B4 (en) * | 2007-04-27 | 2019-07-11 | Man Energy Solutions Se | Fuel pump with leakage grooves |
US8261718B2 (en) * | 2007-11-01 | 2012-09-11 | Caterpillar Inc. | High pressure pump and method of reducing fluid mixing within same |
FI120602B (en) | 2008-01-02 | 2009-12-15 | Waertsilae Finland Oy | Method and apparatus for testing the injection pump piston |
JP4911199B2 (en) * | 2009-06-17 | 2012-04-04 | 株式会社デンソー | Fuel condition detection device |
EP2530315A1 (en) * | 2011-06-02 | 2012-12-05 | Delphi Technologies Holding S.à.r.l. | Fuel pump lubrication |
DE202011108107U1 (en) * | 2011-11-19 | 2013-02-21 | Adriaan Verstallen | Stepped piston pump for pumping four different liquids with a seal and lubrication of the stepped piston exclusively by means of a lubricious liquid via grooves on the piston circumference |
CN104595075B (en) * | 2014-12-08 | 2017-07-28 | 余姚市舒春机械有限公司 | A kind of wear-resisting type plunger and bare of injection pump with lubrication system |
CN104696128A (en) * | 2015-01-15 | 2015-06-10 | 东风朝阳朝柴动力有限公司 | Fuel injection pump with ventilation function |
CN108533430B (en) * | 2018-05-07 | 2023-12-19 | 梁跃中 | Super-high pressure fuel pump structure of diesel engine |
CN117267115A (en) * | 2023-11-20 | 2023-12-22 | 中船动力研究院有限公司 | Sealing structure of plunger type movement mechanism |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB285675A (en) * | 1927-03-29 | 1928-02-23 | Poul Arne Scott Iversen | Improvements in pumps |
GB852430A (en) * | 1956-12-27 | 1960-10-26 | Sigma Lutin | Piston or plunger pumps |
GB834710A (en) * | 1957-09-04 | 1960-05-11 | Su Carburetter Co Ltd | Improvements relating to fuel-injection pumps for compression-ignition internal combustion engines |
-
1989
- 1989-08-30 FI FI894055A patent/FI84093C/en not_active IP Right Cessation
-
1990
- 1990-08-23 DE DE19904026689 patent/DE4026689A1/en not_active Withdrawn
- 1990-08-29 GB GB9018810A patent/GB2237074A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB9018810D0 (en) | 1990-10-10 |
GB2237074A (en) | 1991-04-24 |
DE4026689A1 (en) | 1991-03-07 |
FI84093C (en) | 1991-10-10 |
FI894055A (en) | 1991-03-03 |
FI894055A0 (en) | 1989-08-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI84093B (en) | INSPRUTNINGSPUMP FOER BRAENSLE. | |
JP4662668B2 (en) | Pumping equipment for fuel | |
US7219645B2 (en) | Oil pump for a motorcycle | |
JP5937681B2 (en) | Fuel system and method for reducing fuel leakage from a fuel system | |
CA1049870A (en) | Internal combustion engine with sound proofing cowling | |
KR20090014330A (en) | Combined gas and liquid pump | |
KR100734650B1 (en) | Cover plate for a crankcase | |
US4231727A (en) | Vacuum producing rotary vane pump with shaft lubrication | |
JP2004132378A (en) | High pressure pump suitable particularly for common injection device | |
RU2492348C2 (en) | Fuel pump, mostly for system of power supply of piston internal combustion engine | |
US4433656A (en) | Automotive oil filter precharging arrangement | |
ITMI20072066A1 (en) | FUEL INJECTION SYSTEM WITH A LUBRICATED HIGH PRESSURE PUMP WITH FUEL, AND ITS RELATED PUMP GROUP | |
US6238189B1 (en) | Radial piston pump for high-pressure fuel supply | |
JPH0726624B2 (en) | Oil rotary vacuum pump shaft seal device | |
JPH0123644B2 (en) | ||
EP0248839A1 (en) | Intermittent service screw compressor. | |
US6463904B2 (en) | Oil module for an internal combustion engine | |
GB2069610A (en) | Vacuum pump | |
EP4108943B1 (en) | Vehicle power plant comprising an internal combustion engine with turbocharger | |
SU1291708A1 (en) | Device for atomizing oil onto piston | |
US6354249B1 (en) | Engine with coolant pump | |
US3057434A (en) | Gear pump and sump for engine lubrication system | |
US5281086A (en) | Pump for viscous fluids | |
US5024190A (en) | Oil supply device for two cycle engine | |
JPS5853694A (en) | Vacuum vane pump |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: OY WARTSILA DIESEL INTERNATIONAL LTD. |