EP2956667A1 - Baugruppe umfassend pumpelement und befestigungsflansch - Google Patents
Baugruppe umfassend pumpelement und befestigungsflanschInfo
- Publication number
- EP2956667A1 EP2956667A1 EP13815776.3A EP13815776A EP2956667A1 EP 2956667 A1 EP2956667 A1 EP 2956667A1 EP 13815776 A EP13815776 A EP 13815776A EP 2956667 A1 EP2956667 A1 EP 2956667A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- pumping element
- assembly according
- mounting flange
- shoulder
- 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
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000005086 pumping Methods 0.000 claims description 71
- 238000005452 bending Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/05—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by internal-combustion engines
-
- 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
- F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
- F02M39/02—Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives
-
- 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
-
- 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
- F04B1/0421—Cylinders
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/855—Mounting of fuel injection apparatus using clamp elements or fastening means, e.g. bolts or screws
-
- 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
Definitions
- the invention is based on an assembly comprising a pumping element and a mounting flange for installation in a housing according to the preamble of patent claim 1 and also of a housing for such an assembly.
- a mounting flange is required to permanently connect such a pumping element to the housing.
- the outer body of the pumping element and the associated mounting flange is made in one piece as a forged part.
- the disadvantage here is that the subsequently required for the corresponding forging forming rework, for example by machining, is associated with relatively high production costs.
- the assembly with the characterizing features of claim 1 has the advantage that, in contrast to the prior art, in which the outer body of the pumping element and the mounting flange are designed integrated, by the present invention separately from each other making the pumping element and the associated mounting flange of the outer body of Cost-reducing pump element is designed as a rotating part of rod material with low Zerspannvolumen and the attachment of the pumping element by means of the formed separately from the outer body of the pumping element and on
- the mounting flange can be manufactured from a cost-effective and from a suitable for the mechanical stress occurring during operation of the mounting flange material. Further advantageous developments and refinements of the invention will become apparent from the measures listed in the dependent claims.
- the fastening flange In order to receive the pumping element in the fastening flange, the fastening flange has a central passage opening, which encloses a head region of the pumping element in the mounted state of the assembly.
- the central passage opening of the fastening flange is of circular design.
- the mounting flange has at least two retaining lugs for fastening means, which lie opposite one another symmetrically relative to the central passage opening, on the housing.
- An advantageous development of the invention provides that on the outer body of the pumping element, a circumferential shoulder on the outer circumference is formed, which
- the shoulder of the pumping element provides a bearing surface for the mounting flange mounted in the intended position on the pumping element.
- An embodiment of the invention may be that the shoulder of the pumping element when installed in a housing cooperates with a shoulder of the housing. In the intended installation position of the module, the shoulder of the pumping element rests on the shoulder formed in the mouth region of the housing.
- the pumping element comprises a spring, which acts on the one hand on a formed in the lower region of the pumping element paragraph and on the other hand is provided for support on a stop within the opening of the housing.
- the axial force generated by the spring acts upwards and presses the pumping element against the mounting flange.
- An embodiment of the invention is that the mounting flange rests flat on the shoulder of the pumping element. As a result, the mounting flange acts as a rigid element, which fixes the pumping element in the axial direction.
- a preferred and particularly advantageous embodiment of the invention, in which the mounting flange is designed elastically as a spring element or bending element, however, is that the mounting flange is curved away from the shoulder.
- the curvature between the central axis of the pumping element and the location of attachment of the mounting flange is formed on the housing.
- the mounting flange exerts as a spring element or bending element from a downward axial force, so that the mounting flange presses against the shoulder of the pumping element.
- component tolerances in the axial direction can thereby be compensated.
- the mounting flange is formed of strip material, wherein individual lamellae of the strip material are stacked one above the other.
- each retaining tab has at least one through hole for receiving a respective associated fastener.
- the fastening means are designed as screws and anchored in corresponding holes in an outer side of the housing.
- FIG. 1 shows a longitudinal section through an assembly which comprises a pumping element and a mounting flange receiving the pumping element, wherein the left-hand part of FIG. 1 shows a first embodiment of the mounting flange, while the right-hand part shows a second embodiment of the mounting flange, FIG.
- FIG. 2 shows a cross section through a head region of the pumping element of FIG. 1 according to the first embodiment, wherein a cut side at the head region serves as a key surface for fixing an angular position of the pumping element
- FIG. 3 shows a top view of the housing-mounted assembly according to FIG second embodiment.
- FIG. 1 shows, in a longitudinal sectional view, an assembly according to the invention designated in its entirety by 10, which comprises a pumping element 11 and a fastening flange 12 receiving the pumping element.
- the left half of Fig. 1 shows a first embodiment of the mounting flange 12, which is flat in profile and thus rests flat on the outside of a housing 22, while the right half of Fig. 1 shows a second embodiment of the mounting flange 12, the curved or arched in profile is formed.
- the assembly 10 is suitable for installation in a housing.
- the head portion 21 of the pumping element 1 which is shown in the figures essentially on the basis of its outer body.
- the passage opening 50 of the mounting flange 12 is circular, wherein the diameter thereof corresponds approximately to the diameter of the cylindrical head portion 21 of the pumping element 1 1.
- the mounting flange 12 For attachment of the mounting flange 12 on an abutment side 27 of the housing 22, the mounting flange 12 has two mutually symmetrically with respect to the Lssensstoffach- se 24 oppositely arranged retaining tabs 37 with two through holes 23, which are arranged symmetrically to the longitudinal center axis 24 opposite each other and in each case a screw 25 therein receive, with which the mounting flange 12 can be anchored in two blind holes 26 which are formed corresponding to the arrangement of the through holes 23 on the abutment side 27 of the housing 22.
- the Pumping element 1 1 is accommodated in a housing opening 28 of the housing 22. By means of a circumferential groove on the outer circumference of a shoulder 30 of the pumping element 1 1 circumferential groove 31 is supported, the pumping element 1 1 in the mouth region of
- the mounting flange 12 has a planar profile and thus the mounting flange rests flat on the shoulder 30 of the pumping element 1 1, wherein the passage opening axially from the shoulder 30 extending upwards
- a spring 34 is provided in the lower region of the pumping element 1 1, which on the one hand on - not shown in the figure - bottom or a shoulder of the housing opening and on the other hand to a second sealing ring bearing shoulder 35 and thereby generates an axially upward vertical force, with which the shoulder 30 of the pumping element 1 1 is placed in abutment against the underside of the mounting flange 12.
- the mounting flange 12 is anchored by means of engaging in the blind holes 26 of the housing 22 screws 25 on the contact side 27 of the housing, that the bottom of the mounting flange is flush with the contact side 27.
- the vertical force generated by the spring 34 prevents axial displacement of the pumping element downwardly within the housing opening.
- the second embodiment according to the right-hand side view of FIG. 1 is characterized in that the fastening flange 12 has a curvature or a curved profile that runs symmetrically to the longitudinal central axis 24 of the assembly 10.
- the profile is substantially curved like a trough, wherein the central region rests centrally on the shoulder 30 of the pumping element 1 1, while the off-center region is upwardly arched and thereby protrudes axially from the shoulder 30 and the contact side 27 axially spaced or.
- the shoulder 30 of the Pumping element 1 1 Due to the curved profile and this inherent spring force, it is possible by adjusting the screws 25 overcoming the spring force to produce a correspondingly variable deflection of the curved flange profile, whereby an adjustable and axially downward biasing force between the mounting flange 12, the shoulder 30 of the Pumping element 1 1 and the housing 22 is generated.
- the shoulder 30 of the pumping element 1 1 according to the second embodiment has a larger diameter than that of the first embodiment and the mouth portion of the housing opening is formed larger than the axially underlying area, the underside of the shoulder 30, which according to the second embodiment as a diameter widening 33rd is formed on the thus formed in the vicinity of the mouth paragraph 38 in the housing opening.
- the first sealing ring 31 in the shoulder 30 seals against the inner circumference of the housing opening in the region of the mouth above the shoulder 38.
- the in the lower part of the pumping element 1 1 at the formed there paragraph 35 with its one end acting spring 34, which at its other end in the opening of the housing to a wall portion such as a floor or a shoulder or at a deeper in the
- Housing opening mounted and coupled to the pump element component such as a shaft supported, generates an axial vertical force upwards, which presses the shoulder 30 of the pumping element 1 1 against the underside of the mounting flange 12 in its central abutting the shoulder 30 central portion.
- the mounting flange is designed in this embodiment as a bending element or bending beam, axial component tolerances are compensated.
- the mounting flange 12 is preferably formed from strip material and may be formed of lamellar superimposed individual elements, which are each formed from the strip material, wherein the individual elements can be inexpensively designed as stampings.
- 2 shows a cross section through the pumping element 1 1 according to the first embodiment, wherein a key surface 40 is provided at the head region of the pumping element 1 1, which serves to define an angular position of the pumping element 1 1.
- Fig. 3 illustrates in a plan view of the built-in housing 22 assembly
- the mounting flange 12 with the symmetrically opposite retaining tabs 37 an oval or elliptical shape on.
- an assembly 10 which comprises a pumping element 1 1 and a mounting flange 12 for installation in a housing
- the mounting flange 12 has a central passage opening 50, which encloses a head portion 21 of the pumping element 1 1 in the assembled state of the assembly 10 and further at least two mutually symmetrically with respect to the central passage opening retaining tabs 37 for fastening means on the housing 22.
- the pumping element 1 1 points a spring 34 which engages on the one hand at a lower portion of the pumping element 1 1 formed shoulder 35 and on the other hand is provided for Abstützung on a stop within the opening of the housing 22.
- the pumping element 1 1 is accommodated and anchored either in an opening of the housing 22 by means of a planar and thus rigid or by means of a curved and thus elastically formed profile of the fastening flange 12.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310202569 DE102013202569A1 (de) | 2013-02-18 | 2013-02-18 | Baugruppe umfassend Pumpelement und Befestigungsflansch |
PCT/EP2013/078046 WO2014124720A1 (de) | 2013-02-18 | 2013-12-27 | Baugruppe umfassend pumpelement und befestigungsflansch |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2956667A1 true EP2956667A1 (de) | 2015-12-23 |
EP2956667B1 EP2956667B1 (de) | 2019-02-27 |
Family
ID=49917095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13815776.3A Not-in-force EP2956667B1 (de) | 2013-02-18 | 2013-12-27 | Baugruppe umfassend pumpelement und befestigungsflansch |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2956667B1 (de) |
CN (1) | CN104995404B (de) |
DE (1) | DE102013202569A1 (de) |
WO (1) | WO2014124720A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016206459B3 (de) * | 2016-04-18 | 2017-10-05 | Continental Automotive Gmbh | Kombination, umfassend ein Gehäuse und einen Flansch, und Anordnung |
DE102016217409A1 (de) * | 2016-09-13 | 2018-03-15 | Robert Bosch Gmbh | Kraftstoff-Hochdruckpumpe |
EP3578801B1 (de) * | 2018-06-06 | 2021-11-10 | Delphi Technologies IP Limited | Brennstoffpumpenanordnung |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2975776A (en) * | 1958-03-20 | 1961-03-21 | Cav Ltd | Liquid fuel pumps of rinternal combustion engines |
US3759637A (en) * | 1971-12-16 | 1973-09-18 | Sigma | Injection pumps |
JPS597266U (ja) * | 1982-07-06 | 1984-01-18 | 株式会社ボッシュオートモーティブ システム | 燃料噴射ポンプ |
JP5039507B2 (ja) * | 2007-10-31 | 2012-10-03 | 日立オートモティブシステムズ株式会社 | 高圧燃料供給ポンプおよびその製造方法 |
DE102008042626A1 (de) * | 2008-05-29 | 2009-12-03 | Robert Bosch Gmbh | Hochdruck-Kraftstoffpumpe |
CN102116308B (zh) * | 2011-04-13 | 2012-08-29 | 襄樊五二五泵业有限公司 | 一种泵用可调式机械密封结构 |
-
2013
- 2013-02-18 DE DE201310202569 patent/DE102013202569A1/de not_active Withdrawn
- 2013-12-27 CN CN201380073266.2A patent/CN104995404B/zh active Active
- 2013-12-27 EP EP13815776.3A patent/EP2956667B1/de not_active Not-in-force
- 2013-12-27 WO PCT/EP2013/078046 patent/WO2014124720A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2014124720A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN104995404B (zh) | 2017-08-01 |
EP2956667B1 (de) | 2019-02-27 |
DE102013202569A1 (de) | 2014-08-21 |
CN104995404A (zh) | 2015-10-21 |
WO2014124720A1 (de) | 2014-08-21 |
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