CN101310108A - Multi-piston pump - Google Patents

Multi-piston pump Download PDF

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Publication number
CN101310108A
CN101310108A CNA200680042861XA CN200680042861A CN101310108A CN 101310108 A CN101310108 A CN 101310108A CN A200680042861X A CNA200680042861X A CN A200680042861XA CN 200680042861 A CN200680042861 A CN 200680042861A CN 101310108 A CN101310108 A CN 101310108A
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China
Prior art keywords
pump
plunger pump
eccentric wheel
unit
plunger
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Granted
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CNA200680042861XA
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Chinese (zh)
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CN101310108B (en
Inventor
C·帕布斯特
M·穆诺兹格雷舒克纳
C·多伯舒茨
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Robert Bosch GmbH
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Robert Bosch GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
    • B60T8/368—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units combined with other mechanical components, e.g. pump units, master 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
    • F04B1/0421—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
    • F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders
    • F04B1/0536—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders with two or more serially arranged radial piston-cylinder units
    • F04B1/0538—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders with two or more serially arranged radial piston-cylinder units located side-by-side

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

The present invention relates to a multi-piston pump comprising a housing (2), a first pump unit (3) having a plurality of piston pumps (3a, 3b, 3c) for the pressure supply of a first pressure circuit (I), a second pump unit (4) having a plurality of piston pumps (4a, 4b, 4c) for the pressure supply of a second pressure circuit (II), a drive and an eccentric unit having a first eccentric (5) and a second eccentric (6), wherein the first and the second eccentrics (5, 6) drive the plurality of piston pumps (3a, 3b, 3c; 4a, 4b, 4c), and wherein the first and second pump units (3, 4) comprise in each case at least one piston pump (3a, 3b; 4c) which can be driven by the first eccentric (5) and one piston pump (3c; 4a, 4b) which can be driven by the second eccentric (6), characterized in that in each case one piston pump (3a, 3b; ; 4c) which is driven by the first eccentric (6) is arranged parallel to a piston pump (4a, 4b; 3c) which is driven by the second eccentric (6).

Description

Multi plungerpump
The present invention relates to a kind of multi plungerpump of the aforementioned part according to claim 1.
This multi plungerpump for example is disclosed among DE 103 53 834 A1.This multi plungerpump is used to, and for example the pressure in the braking system forms in the automobile.Disclosed multi plungerpump has 2 eccentric wheels, and they are set in the delegation, and each self-driven three plunger pump.Therefore plunger pump is set in two parallel planes that are in the eccentric wheel height.Therefore attach troops to a unit in each eccentric plunger pump is arranged on eccentric wheel each other with different angles around.In order to prevent pressure surge, therefore first eccentric 2 plunger pumps are connected second eccentric 1 plunger pump together, and second eccentric 2 plunger pumps are connected first eccentric 1 plunger pump together.Therefore eccentric wheel is configured to reverse mutually about 150 ° angle.Yet this has shown that also the cost of production of this multi plungerpump is very big on the one hand, because a plurality of low pressure lines and pressure duct must be loaded in the common housing.In addition, because the arrangement of plunger pump has produced changeable mechanical force on the bearing of motor and eccentric shaft.In addition, the shortcoming of the there solution of being recommended is, the hydraulic pressure length in the hole of first and second pressure circuits is different, thereby has caused existing different pressure formation time in multi plungerpump.
Advantage of the present invention
On the contrary, the advantage that the multi plungerpump that has the described feature of claim 1 according to the present invention has is, it has been guaranteed live axle and has placed uniform circuit load on the bearing of live axle.Noise can be further reduced thus, and particularly pulsation-free conveying can be realized.Therefrom draw, be provided according to multi plungerpump of the present invention can be simpler, cost is lower.Therefore this has realized that according to the present invention each plunger pump of the first pump unit is configured to be parallel to a plunger pump of the second pump unit.Thereby guaranteed that the plunger pump of the first and second pump unit is installed equally.Avoided thus, on live axle and bearing, produced changeable mechanical force because the difference of plunger pump is arranged.In addition, because being arranged in parallel of the plunger pump of the first and second pump unit produced the direction quantity that reduces, on these directions, must be produced and be installed.Therefrom draw, this parallel arrangement can also guarantee that the pipeline length with the pipeline that leads to the second pump unit with the pipeline length pipeline that leads to the first pump unit and the second pump unit first pump unit can be made into the same long.This has very big advantage, can realize thus in the different pressure circuits that actuation time is identical, and this time, each was provided by the first and second pump unit.Therefore pressure circuit can, the road of for example need not going for a stroll be connected directly in each pressure circuit high pressure valve together.
Following claim (Unteranspr ü che) has illustrated other the favourable schemes according to solution of the present invention.
At first, the first and second pump unit respectively comprise three plunger pumps.These plunger pumps are set on first and second eccentric wheels with 120 ° angle at first separately.
Other advantage is that these two pressure circuits also can be made into the hydraulic pressure symmetry now, and this makes to produce further oversimplifies.Used because at first devote automobile according to multi plungerpump of the present invention, thus be typical products in mass production, by produced the about potentiality of huge joint according to being arranged in parallel of plunger pump of the present invention.
What other were preferentially selected is that first and second eccentric wheels are configured to reverse mutually an angle.The preferential especially herein angle of selecting is about 150 °.
In order to obtain compact especially arrangement and to realize pipeline distance short as far as possible in the multi plungerpump housing, the plunger pump of the first pump unit is set in the first half parts of multi plungerpump, and the plunger pump of the second pump unit is set in the second half parts of multi plungerpump.
What especially preferentially select is that the plunger pump of pump unit is configured to about 120 ° angle in one and half parts.This provides very compact structure.
Description of drawings
Then with reference to the detailed explanation the present invention of accompanying drawing who encloses.Accompanying drawing illustrates:
Fig. 1 is according to the diagram perspective drawing of the multi plungerpump of the embodiment of the invention
Fig. 2 vertical view diagram, it has illustrated the arrangement of the plunger pump of the first and second pump unit
With
Fig. 3 has the schematic diagram according to the braking device of multi plungerpump of the present invention
Embodiment's explanation
Then according to embodiments of the invention multi plungerpump 1 is described referring to figs. 1 through 3.
This multi plungerpump 1 comprises housing 2, the first pump unit 3 and the second pump unit 4.The first pump unit 3 comprises three plunger pump 3a, 3b, 3c, and the second pump unit 4 comprises three plunger pump 4a, 4b, 4c.As Fig. 3 especially clearly shown in, per three plunger pumps are set at around first eccentric wheel 5 and second eccentric wheel 6.Therefore 1 plunger pump 4c of 2 plunger pump 3a, 3b of the first pump unit 3 and the second pump unit 4 is attached troops to a unit in first eccentric wheel 5.1 plunger pump 3c of the first pump unit 3 and 2 plunger pump 4a, 4b of the second pump unit 4 are attached troops to a unit in second eccentric wheel 6.Thereby plunger pump 3a, 3b, the 3c of the first pump unit 3 provide the pressure among the first pressure circuit I, and plunger pump 4a, 4b, the 4c of the second pump unit 4 are provided for the pressure of the second pressure circuit II.Go back diagram among Fig. 3 and show pedal P and D TYPE WELDED JOINT IN PRESSURE VESSEL
Figure A20068004286100051
And 4 wheel drag VR, HL, VL and HR.It is that the two circuit pressure circuit of X type distributes that this embodiment's pressure circuit distributes, and wherein pressure circuit I and II also have suction valve, outlet valve, changing valve and high pressure valve in disclosed mode, and these are not described in detail.
As Fig. 1 clearly shown in, plunger pump 3a, 3b; 4c is set in the first plane E1 of housing 2, and plunger pump 4a, 4b; 3c is set in the second plane E2 of housing 2.First eccentric wheel 5 also is set among the first plane E1, and second eccentric wheel 6 is in the second plane E2.
Dimple 7 is set at the central position in the middle of the housing 2, and it is used to place first eccentric wheel 5 and second eccentric wheel 6.In addition, the first low pressure accumulator 8a and the second low pressure accumulator 8b are set in the housing 2.Low pressure line leads to the first pump unit 3 from the first low pressure accumulator 8a, and low pressure line leads to the second pump unit 4 from the second accumulator 8b.As Fig. 1 clearly shown in, the low pressure line that leads to plunger pump 3c and 3b from the first low pressure accumulator 8a is very short.The low pressure line that leads to plunger pump 3a also can be equally relatively simply realized by 2 holes that are set to be in 90 °.Similarly, can finish the pressure duct of the first and second pump unit 3,4 with simple mode.As shown in Figure 1, between by the plunger pump 3b and plunger pump 3c of the first pump unit 3 that is arranged in parallel, only need a short attachment hole with the main braking cylinder interface 9 of changing valve or pressure circuit I.The pressure duct of horizontal/vertical directly leads to suction valve interface the pressure circuit I from plunger pump 3a or 3b then.In the second pump unit 4, simply finish too towards the pressure duct of the main braking cylinder interface of pressure circuit II.The same nipple road that only needs to lead to changing valve between these two plunger pump 4b and 4c, and the hole directly leads to suction valve interface the pressure circuit II from plunger pump 4c.By 2 holes that are set to be in 90 °, plunger pump 4a be connected equally among the pressure circuit II the suction valve interface together.As Fig. 1 clearly shown in, interface 9,10 is set on the platform that is formed in the housing 2.
In addition, the same pipeline length that is used for the first and second pump unit 3,4 guaranteed, when braking, it is slow not produce on wheel drag VR, the HL between two pressure circuit I and the II or VL, the HR.
The eccentric wheel unit that comprises first and second eccentric wheels 5,6 is set in the dimple 7, and is driven by a motor that does not illustrate.This motor can be placed directly on the housing 2.Therefore first eccentric wheel 5 and second eccentric wheel 6 are configured to reverse mutually about 150 ° (referring to Fig. 3), and wherein the eccentricity of two eccentric wheels 5,6 has been selected the same.Thereby guaranteed by being arranged in parallel of plunger pump on first and second eccentric wheels 5,6, at the multi plungerpump run duration, 0 ° of the order of motor rotation (360 °) ... 30 ° ... 120 °, 150 ° ... 240 ° ... under 270 °, obtain uniform load variations, thereby prevented that irregular mechanical force from particularly acting on the bearing of eccentric shaft.Can realize the few especially and special rule of operation fluctuation of multi plungerpump thus, and generate by (schlagend) bearing or the similar eliminating noise of knocking in.
As Fig. 2 clearly shown in, therefore plunger pump 3a, the 3b of the first pump unit 3,3c are provided in 120 ° the angular extensions alpha.Plunger pump 4a, 4b, the 4c of the second pump unit 4 are set in 120 ° the angular range beta in the same way.Therefore the arrangement of plunger pump is such, and plunger pump 3a, 3b, the 3c of the first pump unit 3 is set in the first half parts 11, and plunger pump 4a, 4b, the 4c of the second pump unit 4 are set in the second half parts 12.In Fig. 2, plunger pump is shown with the straight line diagram.The description of Fig. 2 is clear and definite once more, by the plunger pump on first and second eccentric wheels 5,6 according to of the present invention, parallel arrangement, can realize special compact structure.Multi plungerpump 1 can be manufactured into symmetry thus, thereby particularly also can be implemented in the hydraulic pressure symmetry about pipeline length in the housing simply.Also possible thus, the suction line interface of multi plungerpump can be connected directly at high pressure valve together.Fig. 2 is also clear and definite in addition, and the production of multi plungerpump and installation can significantly be oversimplified equally, because for example plunger pump only is installed on three directions or the hole must be driven in the housing.Production and mounting auxiliary also can significantly be oversimplified thus.In addition, the connecting pipeline between the single plunger pump of each pump unit 3,4 can be done shortly especially, because plunger pump is predesignated to paired parallel.The expense in the hole in the housing 2 has also significantly reduced thus.In addition, according to intention of the present invention, be being arranged in parallel of different eccentric plunger pumps in conjunction with the distribution of plunger pump on two eccentric wheels 5,6 of a pump unit, can avoid the pressure surge of run duration, wherein the symmetric arrays of plunger pump on eccentric wheel prevented to change the noise emissions that causes by mechanical load equally.Therefore what replenish is, multi plungerpump according to the present invention still is that cost is low especially and produce especially easily.

Claims (7)

1. multi plungerpump, it comprises housing (2), have a plurality of be used for to the plunger pump (3a, 3b, 3c) of first pressure circuit (I) voltage supply the first pump unit (3), have and a plurality ofly be used for to the second pump unit (4), the drive unit of the plunger pump (4a, 4b, 4c) of second pressure circuit (II) voltage supply and have first eccentric wheel (5) and the eccentric wheel unit of second eccentric wheel (6), wherein first and second eccentric wheels (5,6) drive a plurality of plunger pump (3a, 3b, 3c; 4a, 4b, 4c), and wherein the first and second pump unit (3,4) have at least one plunger pump (3a, the 3b that can be driven by first eccentric wheel (5) respectively; 4c) and at least one plunger pump (3c that can drive by second eccentric wheel (6); 4a, 4b), it is characterized in that the plunger pump (3a, the 3b that are driven by first eccentric wheel (5); 4c) be configured to be parallel to respectively plunger pump (4a, the 4b that is driven by second eccentric wheel (6); 3c).
2. according to the described multi plungerpump of claim 1, it is characterized in that the described first and second pump unit (3,4) have three plunger pumps respectively.
3. according to the described multi plungerpump of claim 2, it is characterized in that, attach troops to a unit in three plunger pumps (3a, 3b of first eccentric wheel (5); 4c) and attach troops to a unit in three plunger pumps (4a, 4b of second eccentric wheel (6); 3c) distinguished adjacent setting reciprocally with 120 ° angle.
4. according to each described multi plungerpump in the aforementioned claim, it is characterized in that described eccentric wheel (5,6) reverses several angle ground mutually and is provided with.
5. according to the described multi plungerpump of claim 4, it is characterized in that described eccentric wheel (5,6) is provided with mutually with about 150 ° angle with reversing.
6. according to each described multi plungerpump in the aforementioned claim, it is characterized in that plunger pump (3a, the 3b of the described first pump unit (3); 4c) be set in the first half parts (11) of multi plungerpump, and the plunger pump of the second pump unit (4) (4a, 4b; 3c) be set in the second half parts (12) of multi plungerpump.
7. according to the described multi plungerpump of claim 6, it is characterized in that the plunger pump of described pump unit (3,4) is set in about 120 ° angular range in the first half parts (11) and/or the second half parts (12).
CN200680042861XA 2005-11-18 2006-10-26 Multi-piston pump Expired - Fee Related CN101310108B (en)

Applications Claiming Priority (3)

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DE102005055057.6 2005-11-18
DE102005055057A DE102005055057A1 (en) 2005-11-18 2005-11-18 Multi-piston pump
PCT/EP2006/067824 WO2007057285A1 (en) 2005-11-18 2006-10-26 Multi-piston pump

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CN101310108A true CN101310108A (en) 2008-11-19
CN101310108B CN101310108B (en) 2010-06-02

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US (1) US20080298982A1 (en)
EP (1) EP1952020A1 (en)
CN (1) CN101310108B (en)
DE (1) DE102005055057A1 (en)
WO (1) WO2007057285A1 (en)

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EP1952020A1 (en) 2008-08-06
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DE102005055057A1 (en) 2007-05-24
US20080298982A1 (en) 2008-12-04

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