ITMI20081470A1 - HIGH PRESSURE PUMP FOR FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE - Google Patents
HIGH PRESSURE PUMP FOR FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINEInfo
- Publication number
- ITMI20081470A1 ITMI20081470A1 IT001470A ITMI20081470A ITMI20081470A1 IT MI20081470 A1 ITMI20081470 A1 IT MI20081470A1 IT 001470 A IT001470 A IT 001470A IT MI20081470 A ITMI20081470 A IT MI20081470A IT MI20081470 A1 ITMI20081470 A1 IT MI20081470A1
- Authority
- IT
- Italy
- Prior art keywords
- high pressure
- pressure pump
- cylindrical wall
- cylindrical
- head
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 7
- 239000000446 fuel Substances 0.000 title claims description 7
- 239000000463 material Substances 0.000 claims description 14
- 238000003754 machining Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910001060 Gray iron Inorganic materials 0.000 claims description 2
- 229910000760 Hardened steel Inorganic materials 0.000 claims description 2
- 238000005496 tempering Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 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
- 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
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
-
- 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
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
- F02M63/0265—Pumps feeding common rails
-
- 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
-
- 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
- F04B1/0413—Cams
-
- 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
- F04B1/0421—Cylinders
-
- 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
- F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
-
- 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
- F04B1/0439—Supporting or guiding means for the 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
Description
D E S C R I Z I O N E DESCRIPTION
del brevetto per invenzione industriale dal titolo: of the patent for industrial invention entitled:
“POMPA DI ALTA PRESSIONE PER ALIMENTARE COMBUSTIBILE A UN MOTORE A COMBUSTIONE INTERNA” "HIGH PRESSURE PUMP TO FEED FUEL TO AN INTERNAL COMBUSTION ENGINE"
La presente invenzione riguarda una pompa di alta pressione per alimentare combustibile a un motore a combustione interna. The present invention relates to a high pressure pump for supplying fuel to an internal combustion engine.
In particolare, la presente invenzione riguarda una pompa di alta pressione comprendente un corpo pompa; almeno un pistone e un meccanismo di trasmissione, il quale è atto conferire al pistone un moto alternativo e comprende un albero avente una porzione eccentrica e un bicchierino. Il corpo pompa ha un cilindro di alloggiamento del pistone e una sede cilindrica di alloggiamento del bicchierino per guidare il bicchierino e assorbire le forze laterali trasmesse dal meccanismo di trasmissione al pistone. In particular, the present invention relates to a high pressure pump comprising a pump body; at least one piston and a transmission mechanism, which is adapted to give the piston a reciprocating motion and comprises a shaft having an eccentric portion and a cup. The pump body has a piston housing cylinder and a cylindrical bowl housing seat to guide the bowl and absorb lateral forces transmitted by the transmission mechanism to the piston.
Le attuali pompe di alta pressione presentano degli svantaggi dovuti sostanzialmente alla necessità di eseguire delle lavorazioni meccaniche ad asportazione di truciolo all’interno del corpo pompa che già di per sé è un elemento complesso che richiede molte lavorazioni. In particolare, la zona in cui è ricavata la sede di alloggiamento del bicchierino è una zona di difficile accesso e, per questo motivo, pone delle difficoltà all’esecuzione della lavorazione meccanica ad asportazione di truciolo. Current high-pressure pumps have disadvantages substantially due to the need to carry out mechanical machining operations with chip removal inside the pump body which in itself is a complex element that requires a lot of machining. In particular, the area in which the housing seat of the cup is obtained is an area that is difficult to access and, for this reason, poses difficulties in carrying out the mechanical machining with chip removal.
Uno scopo della presente invenzione è di agevolare la realizzazione del corpo pompa della pompa di alta pressione. An object of the present invention is to facilitate the construction of the pump body of the high pressure pump.
Un altro scopo della presente invenzione è di migliorare la precisione di allineamento fra il cilindro di alloggiamento del pistone e la sede di alloggiamento del bicchierino. Another object of the present invention is to improve the alignment accuracy between the piston housing cylinder and the cup housing seat.
In accordo con tali scopi, viene realizzata una pompa di alta pressione per alimentare combustibile a un motore a combustione interna; la pompa di alta pressione comprendendo un corpo pompa; almeno un pistone e un meccanismo di trasmissione, il quale è atto conferire al pistone un moto alternativo e comprende un albero avente una porzione eccentrica e un bicchierino; in cui il detto corpo pompa comprende un corpo principale di alloggiamento dell’albero e una testata, la quale è montata sul corpo principale, ha un cilindro di alloggiamento del pistone e una sede cilindrica di alloggiamento del bicchierino. In accordance with these purposes, a high pressure pump is provided to feed fuel to an internal combustion engine; the high pressure pump comprising a pump body; at least one piston and a transmission mechanism, which is adapted to give the piston a reciprocating motion and comprises a shaft having an eccentric portion and a cup; in which said pump body comprises a main body housing the shaft and a head, which is mounted on the main body, has a piston housing cylinder and a cylindrical housing for the cup.
In questo modo, il cilindro e la sede possono realizzate in un pezzo di geometria relativamente semplice e facile da bloccare durante la lavorazione meccanica ad asportazione di truciolo con la conseguenza che sia la rapidità di lavorazione, sia la precisione ne traggono vantaggio. Inoltre, il materiale necessario alla realizzazione del corpo principale può essere selezionato fra materiali più poveri rispetto al materiale utilizzato per realizzare la testata e, quindi, complessivamente si ha un risparmio anche per quanto concerne i materiali. In this way, the cylinder and the seat can be made in a piece of relatively simple geometry and easy to lock during the mechanical machining with chip removal with the consequence that both the speed of machining and the precision benefit. Furthermore, the material necessary for making the main body can be selected from poorer materials than the material used to make the head and, therefore, overall there is also a saving as regards the materials.
Ulteriori caratteristiche e vantaggi della presente invenzione appariranno chiari dalla descrizione che segue di un suo esempio non limitativo di attuazione, con riferimento alla figura allegata, la quale è una vista in sezione trasversale, con parti asportate per chiarezza di una pompa di alta pressione realizzata in accordo con la presente invenzione. Further characteristics and advantages of the present invention will become clear from the following description of a non-limiting example of implementation thereof, with reference to the attached figure, which is a cross-sectional view, with parts removed for clarity of a high pressure pump made in according to the present invention.
Nella figura allegata è indicato con il numero di riferimento 1 una pompa di alta pressione per alimentare combustibile, nella fattispecie gasolio, a una pressione maggiore di 2.000 bar a un motore a combustione interna. In the attached figure, the reference number 1 indicates a high pressure pump for supplying fuel, in this case diesel, at a pressure greater than 2,000 bar to an internal combustion engine.
La pompa di alta pressione comprende un corpo pompa 2, che definisce la struttura portante della pompa di alta pressione 1, un meccanismo di trasmissione 3; tre pistoni 4, uno solo dei quali è mostrato nella figura 1, mobili di moto alterno all’interno del corpo pompa 2. Di fatto, la pompa ad alta pressione 1 è una pompa a pistoni radiali. The high pressure pump comprises a pump body 2, which defines the supporting structure of the high pressure pump 1, a transmission mechanism 3; three pistons 4, only one of which is shown in figure 1, movable with alternating motion inside the pump body 2. In fact, the high pressure pump 1 is a radial piston pump.
Il corpo pompa 2 comprende un corpo principale 5; e tre testate 6, una sola delle quali è mostrata nella figura allegata. Ciascuna testata 6 è montata sul corpo principale 5 tramite viti non illustrate nella figura allegata. The pump body 2 comprises a main body 5; and three heads 6, only one of which is shown in the attached figure. Each head 6 is mounted on the main body 5 by means of screws not shown in the attached figure.
Il corpo principale 5 definisce una camera 7 adibita ad alloggiare in parte il meccanismo di trasmissione 3 e presenta tre fori 8, ciascuno dei quali si estende radialmente dalla camera 7 ed è adibito ad alloggiare una rispettiva testata 6. The main body 5 defines a chamber 7 used to partially house the transmission mechanism 3 and has three holes 8, each of which extends radially from the chamber 7 and is used to house a respective head 6.
Il meccanismo di trasmissione 3 comprende un albero 9 avente un asse A1 di rotazione e una porzione eccentrica 10 di asse A2, un anello poligonale 11 montato in modo girevole attorno alla porzione eccentrica 10, e, per ciascun pistone 4, un bicchierino 12 e una molla 13. The transmission mechanism 3 comprises a shaft 9 having an axis A1 of rotation and an eccentric portion 10 of axis A2, a polygonal ring 11 rotatably mounted around the eccentric portion 10, and, for each piston 4, a cup 12 and a spring 13.
L’albero 9, la porzione eccentrica 10 dello stesso, e l’anello poligonale 11 sono alloggiati nella camera 7, mentre ciascun bicchierino 12 e ciascuna relativa molla 13 sono alloggiati prevalentemente in un opportuno vano ricavato in una rispettiva testata 6. The shaft 9, the eccentric portion 10 of the same, and the polygonal ring 11 are housed in the chamber 7, while each cup 12 and each relative spring 13 are mainly housed in a suitable compartment obtained in a respective head 6.
Nella fattispecie, ciascuna testata 6 ha un cilindro 14 di alloggiamento di un relativo pistone 4, e una sede cilindrica 15 di alloggiamento del bicchierino 12 e della molla 13 e comprende una porzione flangiata 16, una parete cilindrica interna 17 protendentesi dalla porzione flangiata 16; e una parete cilindrica esterna 18 protendentesi dalla porzione flangiata 16 ed estendentesi attorno alla parete cilindrica interna 17. In this case, each head 6 has a cylinder 14 for housing a relative piston 4, and a cylindrical seat 15 for housing the cup 12 and the spring 13 and comprises a flanged portion 16, an internal cylindrical wall 17 protruding from the flanged portion 16; and an outer cylindrical wall 18 extending from the flanged portion 16 and extending around the inner cylindrical wall 17.
Il cilindro 14 è delimitato dalla parete cilindrica cilindrica 17, mentre la sede 15 è delimitata dalle pareti cilindriche interna ed esterna 17 e 18. The cylinder 14 is delimited by the cylindrical cylindrical wall 17, while the seat 15 is delimited by the internal and external cylindrical walls 17 and 18.
In particolare, la parete cilindrica esterna 18 è più lunga della parete cilindrica interna 17. In particular, the outer cylindrical wall 18 is longer than the inner cylindrical wall 17.
Il cilindro 14 si estende lungo un asse A3 e presenta una superficie cilindrica 19, la quale è parallela all’asse A3 ed è affacciata al pistone 4. La sede cilindrica 15 è delimitata da una superficie cilindrica esterna 20 estendentesi lungo la parete cilindrica esterna 18 parallelamente all’asse A3 e da una superficie cilindrica interna 21 estendentesi lungo la parete cilindrica interna 17 parallelamente all’asse A3. The cylinder 14 extends along an axis A3 and has a cylindrical surface 19, which is parallel to the axis A3 and faces the piston 4. The cylindrical seat 15 is delimited by an external cylindrical surface 20 extending along the external cylindrical wall 18 parallel to axis A3 and by an internal cylindrical surface 21 extending along the internal cylindrical wall 17 parallel to axis A3.
La sede cilindrica 15 è ulteriormente delimitata da una superficie anulare 22 che raccorda la superficie cilindrica interna 20 alla superficie cilindrica esterna 21. The cylindrical seat 15 is further delimited by an annular surface 22 which connects the internal cylindrical surface 20 to the external cylindrical surface 21.
Il bicchierino 12 comprende una parete di fondo 23 e una parete cilindrica 24 ed è alloggiato nella sede 15. The cup 12 comprises a bottom wall 23 and a cylindrical wall 24 and is housed in the seat 15.
Nella fattispecie, la parete cilindrica 24 del bicchierino 12 è disposta in contatto strisciante con la parete cilindrica esterna 18 lungo la superficie cilindrica esterna 20 in modo da guidare il bicchierino 12 in una direzione parallela all’asse A3. In this case, the cylindrical wall 24 of the cup 12 is arranged in sliding contact with the external cylindrical wall 18 along the external cylindrical surface 20 so as to guide the cup 12 in a direction parallel to axis A3.
La molla a elica 13 si estende attorno al pistone 4 ed è alloggiata nella sede cilindrica 15 e nel bicchierino 12. Nella fattispecie, la molla a elica 13 è guidata dalla parete cilindrica interna 17 lungo la detta superficie cilindrica interna 21 ed è compressa fra la parete di fondo 23 del bicchierino 12 e la superficie anulare 22. The helical spring 13 extends around the piston 4 and is housed in the cylindrical seat 15 and in the cup 12. In this case, the helical spring 13 is guided by the internal cylindrical wall 17 along the said internal cylindrical surface 21 and is compressed between the bottom wall 23 of the cup 12 and the annular surface 22.
Ciascuna testata 6 è parzialmente inserita di misura in uno dei fori 8 del corpo principale 5 e, nella fattispecie, la parete cilindrica esterna 18 è inserita di misura nel rispettivo foro 8. Each head 6 is partially inserted by measure in one of the holes 8 of the main body 5 and, in this case, the external cylindrical wall 18 is inserted by measure in the respective hole 8.
Il corpo principale 5 ha una superficie di appoggio 25 adiacente al foro 8, mentre la testata 6 presenta uno spallamento 26 adiacente alla parete cilindrica esterna 18 affacciato alla superficie di appoggio 25. La testata 6 è premuta contro il corpo principale 5 lungo la superficie di appoggio 25 e lo spallamento 26 tramite le viti di serraggio non illustrate nella figura allegata. The main body 5 has a bearing surface 25 adjacent to the hole 8, while the head 6 has a shoulder 26 adjacent to the external cylindrical wall 18 facing the bearing surface 25. The head 6 is pressed against the main body 5 along the surface of support 25 and shoulder 26 by means of the tightening screws not shown in the attached figure.
Il cilindro 14 e la sede cilindrica 15 sono realizzati nella testata 6 tramite lavorazione meccanica ad asportazione di truciolo come la tornitura e la fresatura. The cylinder 14 and the cylindrical seat 15 are made in the head 6 by mechanical machining with chip removal such as turning and milling.
L’anello poligonale 11 presenta tre facce piane 27 su ciascuna delle quali appoggia la parete di fondo 23 di un rispettivo bicchierino 12. The polygonal ring 11 has three flat faces 27 on each of which the back wall 23 of a respective cup 12 rests.
La rotazione dell’albero 9 attorno all’asse A1 determina la rivoluzione della porzione eccentrica attorno all’asse A1 e la rotazione dell’anello poligonale attorno all’asse A2. Ad eccezione di alcuni movimenti oscillatori, l’anello poligonale 11 si mantiene sostanzialmente parallelo a se stesso e ciascuna faccia piana 27 è dotata di un movimento avente una componente parallela all’asse A3 e una componente perpendicolare all’asse A3. The rotation of shaft 9 around the A1 axis determines the revolution of the eccentric portion around the A1 axis and the rotation of the polygonal ring around the A2 axis. With the exception of some oscillatory movements, the polygonal ring 11 remains substantially parallel to itself and each flat face 27 is equipped with a movement having a component parallel to the A3 axis and a component perpendicular to the A3 axis.
Il bicchierino 12 scorre rispetto all’anello poligonale 11 e rispetto alla parete cilindrica esterna 18, mentre la molla a elica 13 mantiene il bicchierino 12 a contatto dell’anello poligonale 11. The cup 12 slides with respect to the polygonal ring 11 and with respect to the external cylindrical wall 18, while the helical spring 13 keeps the cup 12 in contact with the polygonal ring 11.
Il pistone 4 è appoggiato sulla parete di fondo 23 del bicchierino 12 dalla banda opposta rispetto all’anello poligonale 11. Gli sforzi trasversali all’asse A3 trasmessi per attrito dall’anello poligonale 11 vengono assorbiti dal bicchierino 12 e dalla parete cilindrica esterna 18 che ha la funzione di guidare il bicchierino 12. The piston 4 rests on the bottom wall 23 of the cup 12 from the opposite band with respect to the polygonal ring 11. The forces transversal to the axis A3 transmitted by friction by the polygonal ring 11 are absorbed by the cup 12 and by the external cylindrical wall 18 which has the function of guiding the cup 12.
I vantaggi della presente invenzione sono molteplici. Da un lato, sono agevolate le lavorazioni meccaniche con conseguente incremento della precisione di lavorazione delle stesse e dall’altro lato i materiali definenti il corpo principale 5 e le testate 6 possono essere materiali diversi. Per esempio il materiale definente il corpo principale 5 è selezionato fra ghisa grigia sferoidale, acciai da bonifica per esempio C60, leghe di alluminio o materiali simili, mentre il materiale definente la testata 6 è selezionato fra acciaio da bonifica di alta qualità opportunamente trattato per esempio 100Cr6, acciaio da cementazione o materiali simili. The advantages of the present invention are manifold. On the one hand, mechanical machining is facilitated with a consequent increase in the machining accuracy of the same and on the other hand the materials defining the main body 5 and the heads 6 can be different materials. For example, the material defining the main body 5 is selected from spheroidal gray cast iron, quenched and tempered steels for example C60, aluminum alloys or similar materials, while the material defining the head 6 is selected from suitably treated high quality quenched steel, for example 100Cr6, case hardened steel or similar materials.
Risulta infine evidente che al metodo e alla pompa di alta pressione per alimentare combustibile a un motore a combustione interna qui descritta possono essere apportate modifiche e varianti senza uscire dall’ambito delle rivendicazioni allegate. Finally, it is evident that the method and the high pressure pump for feeding fuel to an internal combustion engine described here may be subject to modifications and variations without departing from the scope of the attached claims.
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT001470A ITMI20081470A1 (en) | 2008-08-05 | 2008-08-05 | HIGH PRESSURE PUMP FOR FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE |
PCT/EP2009/057356 WO2010015448A1 (en) | 2008-08-05 | 2009-06-15 | High-pressure pump for feeding fuel to an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT001470A ITMI20081470A1 (en) | 2008-08-05 | 2008-08-05 | HIGH PRESSURE PUMP FOR FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE |
Publications (1)
Publication Number | Publication Date |
---|---|
ITMI20081470A1 true ITMI20081470A1 (en) | 2010-02-06 |
Family
ID=40637905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT001470A ITMI20081470A1 (en) | 2008-08-05 | 2008-08-05 | HIGH PRESSURE PUMP FOR FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE |
Country Status (2)
Country | Link |
---|---|
IT (1) | ITMI20081470A1 (en) |
WO (1) | WO2010015448A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2302194B1 (en) * | 2009-07-08 | 2012-09-19 | Delphi Technologies Holding S.à.r.l. | A pump unit |
IT1401971B1 (en) * | 2010-09-27 | 2013-08-28 | Bosch Gmbh Robert | HIGH PRESSURE PUMP FOR FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE |
IT1402008B1 (en) * | 2010-10-07 | 2013-08-28 | Bosch Gmbh Robert | PUMPING GROUP FOR FUEL SUPPLEMENTATION, PREFERABLY GASOIL, TO AN INTERNAL COMBUSTION ENGINE |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE474877A (en) * | ||||
WO2004003385A1 (en) * | 2002-06-26 | 2004-01-08 | Siemens Aktiengesellschaft | Radial piston pump |
EP1413749A2 (en) * | 2002-10-25 | 2004-04-28 | Delphi Technologies, Inc. | Fuel pump assembly |
DE20313014U1 (en) * | 2003-08-21 | 2004-12-23 | Robert Bosch Gmbh | High pressure pump for a fuel injector of an internal combustion engine |
DE102006034768A1 (en) * | 2006-07-27 | 2008-01-31 | Siemens Ag | Radial piston pump unit for high-pressure fuel supply in fuel injection systems |
-
2008
- 2008-08-05 IT IT001470A patent/ITMI20081470A1/en unknown
-
2009
- 2009-06-15 WO PCT/EP2009/057356 patent/WO2010015448A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE474877A (en) * | ||||
WO2004003385A1 (en) * | 2002-06-26 | 2004-01-08 | Siemens Aktiengesellschaft | Radial piston pump |
EP1413749A2 (en) * | 2002-10-25 | 2004-04-28 | Delphi Technologies, Inc. | Fuel pump assembly |
DE20313014U1 (en) * | 2003-08-21 | 2004-12-23 | Robert Bosch Gmbh | High pressure pump for a fuel injector of an internal combustion engine |
DE102006034768A1 (en) * | 2006-07-27 | 2008-01-31 | Siemens Ag | Radial piston pump unit for high-pressure fuel supply in fuel injection systems |
Also Published As
Publication number | Publication date |
---|---|
WO2010015448A1 (en) | 2010-02-11 |
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