EP2049789A2 - Radialkolbenpumpeneinheit zur kraftstoff-hochdruckversorgung bei kraftstoff-einspritzsystemen - Google Patents
Radialkolbenpumpeneinheit zur kraftstoff-hochdruckversorgung bei kraftstoff-einspritzsystemenInfo
- Publication number
- EP2049789A2 EP2049789A2 EP07787839A EP07787839A EP2049789A2 EP 2049789 A2 EP2049789 A2 EP 2049789A2 EP 07787839 A EP07787839 A EP 07787839A EP 07787839 A EP07787839 A EP 07787839A EP 2049789 A2 EP2049789 A2 EP 2049789A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump unit
- piston pump
- radial piston
- unit according
- eccentric
- 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
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
- F02M59/02—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
- F02M59/04—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 special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
- F02M59/06—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 special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
-
- 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
- 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
-
- 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
- F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
Definitions
- Radial piston pump unit for high-pressure fuel supply in fuel injection systems
- the invention relates to a radial piston pump unit for high-pressure fuel supply in fuel injection systems, in particular in common-rail high-pressure injection systems, with a pump housing in which a drive shaft is mounted with at least one eccentric, with an eccentric, which at least one Actu ⁇ tion disc of a compressor piston mounted in a cylinder acted upon, with a, a part of the cylinder ⁇ giving support member which is loaded by at least one spring and with a cooperating with the compressor piston suction and a pressure valve.
- the disk was hereby secured by a snap ring ⁇ as a corresponding groove in the support piston.
- the support piston and disc movement was transferred to a holding disc and a ring on the pump piston.
- a radial piston pump unit for high-pressure injection systems is known in this context (DE 102 28 552 B4), which is formed in the aforementioned sense.
- This known construction requires a complex mechanism with return spring, support piston piston ring, retaining washers and other elements, and in addition between the shoes and the polygon surfaces at high speeds at high pressure wear can occur.
- the object of the present invention is to provide a radial piston pump unit of the type mentioned, which contributes to a Redu ⁇ cation of wear and represents a more cost-effective design.
- FIG. 1 shows a longitudinal section through the radial piston pump unit according to the invention
- FIG. 2 shows a cross section through the pump according to FIG. 1
- Fig. 3 is a perspective view of the cylinder ⁇ group
- the invention relates to a radial piston pump unit for high-pressure fuel supply in fuel injection systems, in particular in common rail high-pressure injection systems.
- a pump housing 1 in which a drive shaft 21 is mounted with at least one eccentric 31.
- a cylinder 2 In the upper region of the housing 1 is a cylinder 2 with a suction valve 6 and a pressure valve 7, which communicate with a compressor chamber 8.
- the compressor chamber 8 is part of a cylinder space in the cylinder 2, in which a compressor piston 4 moves up and down.
- This compressor piston 4 is designed as a mushroom piston and has an actuating disk 10 in the lower region.
- This Be ⁇ concernedungscopy 10 is acted upon strike of an eccentric ring 15, which is in the range of the eccentric portion 31 of the drive shaft at ⁇ 21st
- the lower part of the cylinder 2 is surrounded by a plunger cup 13, which is acted upon by a compression spring 11.
- the eccentric portion 31 which at least over parts of the two side discs 17 and 17' 19 and 19 propose acted upon.
- the two mirror-image mutually associated side windows 17, 17 ' have flanges 30 and 30'. These flanges form an eccentric sliding bearing surface area, which is formed as a bore 23 and 31 between the eccentric section of the drive shaft 21 and the flanges 30 and 30 'of the side windows 17 and 17' is located.
- Another sliding surface region 25 is present between the eccentric ring 15 and the upper side of the flanges 30 and 30 'of the mirror-inverted side windows 17 and 17'.
- a sliding surface region 27 results between the underside of the respective tappet cup 13 and the upper Be ⁇ rich mirror images of each other opposite side windows 17 and 17 '.
- Each plunger cup 13 is guided radially in the housing 1, wherein the respective compression spring 11 is disposed in each case between the inner wall of the plunger cup 13 and the outer periphery of a part ⁇ area of the cylinder 2.
- the plunger cup 13, 13 ', 13''are - as stated above ⁇ leads radially in the housing 1.
- the tappet cups also serve as a return element for the respective compressor pistons 4, 4', 4 ''.
- the construction according to the invention results in a modular design, that is to say all components are to be coupled with one another in a form-fitting manner.
- a separate force flow is possible through the Konstrukti ⁇ onsimplantation plunger cup - the one hand and side window Ver ⁇ dense butt - cam ring on the other.
- the transverse forces are advantageously absorbed by the push cup 13, 13 ', 13''.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Compressor (AREA)
- Reciprocating Pumps (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610034768 DE102006034768A1 (de) | 2006-07-27 | 2006-07-27 | Radialkolbenpumpeneinheit zur Kraftstoff-Hochdruckversorgung bei Kraftstoff-Einspritzsystemen |
| PCT/EP2007/057596 WO2008012295A2 (de) | 2006-07-27 | 2007-07-24 | Radialkolbenpumpeneinheit zur kraftstoff-hochdruckversorgung bei kraftstoff-einspritzsystemen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2049789A2 true EP2049789A2 (de) | 2009-04-22 |
| EP2049789B1 EP2049789B1 (de) | 2010-12-08 |
Family
ID=38657239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07787839A Not-in-force EP2049789B1 (de) | 2006-07-27 | 2007-07-24 | Radialkolbenpumpeneinheit zur kraftstoff-hochdruckversorgung bei kraftstoff-einspritzsystemen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2049789B1 (de) |
| DE (2) | DE102006034768A1 (de) |
| WO (1) | WO2008012295A2 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1390856B1 (it) * | 2008-08-01 | 2011-10-19 | Bosch Gmbh Robert | Pompa common rail di alta pressione con anello prismatico composto e impianto di alimentazione di combustibile di un motore common rail comprendente tale pompa |
| ITMI20081470A1 (it) * | 2008-08-05 | 2010-02-06 | Bosch Gmbh Robert | Pompa di alta pressione per alimentare combustibile a un motore a combustione interna |
| IT1396553B1 (it) * | 2009-01-30 | 2012-12-14 | Bosch Gmbh Robert | Pompa a pistoni per alimentare combustibile, preferibilmente gasolio, a un motore a combustione interna |
| US9537718B2 (en) | 2013-03-15 | 2017-01-03 | Cisco Technology, Inc. | Segment routing over label distribution protocol |
| DE102014220839B4 (de) | 2014-10-15 | 2016-07-21 | Continental Automotive Gmbh | Hochdruckpumpe für ein Kraftstoffeinspritzsystem einer Brennkraftmaschine |
| DE102014220937B4 (de) | 2014-10-15 | 2016-06-30 | Continental Automotive Gmbh | Antriebsvorrichtung zum Antreiben einer Kraftstoffhochdruckpumpe sowie Kraftstoffhochdruckpumpe |
| US11032197B2 (en) | 2016-09-15 | 2021-06-08 | Cisco Technology, Inc. | Reroute detection in segment routing data plane |
| CN111997800A (zh) * | 2020-08-19 | 2020-11-27 | 山东鑫亚工业股份有限公司 | 一种柴油机用横置式高压共轨供油泵 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB879285A (en) * | 1958-06-22 | 1961-10-11 | Andrew Fraser | Improvements in and relating to radial-piston hydraulic pumps |
| DE9209366U1 (de) * | 1992-07-11 | 1993-07-29 | Wap Reinigungssysteme Gmbh & Co, 89287 Bellenberg | Radialkolbenpumpe |
| DE19933570A1 (de) * | 1999-07-16 | 2001-02-01 | Siemens Ag | Radialkolbenpumpe, insbesondere zur Förderung von Kraftstoff in einer Einspritzanlage |
| DE10228552B9 (de) * | 2002-06-26 | 2007-08-23 | Siemens Ag | Radialkolbenpumpeneinheit |
| DE10242116B3 (de) * | 2002-09-11 | 2004-04-29 | Robert Bosch Gmbh | Antriebsvorrichtung für ein Pumpenelement |
| DE10313744A1 (de) * | 2003-03-27 | 2004-10-07 | Robert Bosch Gmbh | Hochdruckpumpe für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine |
| DE20313014U1 (de) * | 2003-08-21 | 2004-12-23 | Robert Bosch Gmbh | Hochdruckpumpe für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine |
-
2006
- 2006-07-27 DE DE200610034768 patent/DE102006034768A1/de not_active Withdrawn
-
2007
- 2007-07-24 WO PCT/EP2007/057596 patent/WO2008012295A2/de not_active Ceased
- 2007-07-24 DE DE502007005906T patent/DE502007005906D1/de active Active
- 2007-07-24 EP EP07787839A patent/EP2049789B1/de not_active Not-in-force
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2008012295A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008012295A3 (de) | 2008-03-20 |
| EP2049789B1 (de) | 2010-12-08 |
| DE102006034768A1 (de) | 2008-01-31 |
| WO2008012295A2 (de) | 2008-01-31 |
| DE502007005906D1 (de) | 2011-01-20 |
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