CN102782326A - Axial sealing element for an internal gear pump - Google Patents

Axial sealing element for an internal gear pump Download PDF

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Publication number
CN102782326A
CN102782326A CN2010800441856A CN201080044185A CN102782326A CN 102782326 A CN102782326 A CN 102782326A CN 2010800441856 A CN2010800441856 A CN 2010800441856A CN 201080044185 A CN201080044185 A CN 201080044185A CN 102782326 A CN102782326 A CN 102782326A
Authority
CN
China
Prior art keywords
internal gear
pump
briquetting
gear pump
dish
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.)
Pending
Application number
CN2010800441856A
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Chinese (zh)
Inventor
R·舍普
N·阿拉策
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of CN102782326A publication Critical patent/CN102782326A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/101—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with a crescent-shaped filler element, located between the inner and outer intermeshing members
    • 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
    • B60T8/40—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 comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4031—Pump units characterised by their construction or mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for working fluid
    • F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps

Abstract

The invention relates to an internal gear pump (2, 2') for a slip-regulated hydraulic vehicle braking system, comprising one pressure piece (8, 9, 9') on either side of the gear wheels (3, 4, 3', 4') of said pump. According to the invention, a disk (21, 21') consisting of wear-resistant material is arranged between the pressure piece (8, 9, 9') and the gear pump (2, 2'). The pressure pieces (9, 9') can be manufactured from plastic to reduce costs.

Description

The axial seal element that is used for internal gear pump
Technical field
The present invention relates to a kind of internal gear pump that is used for hydraulic vehicle brake system with said characteristic of preamble of claim 1.
Background technique
Such internal gear pump is known by open source literature DE 10 2,007 054 808 A1.Internal gear pump has internal gear and external gear, external gear be arranged on prejudicially in this internal gear with respect to internal gear and with its engagement.Be closed and sealed pump chamber, internal gear pump has on internal gear and external gear distolateral and is close to the briquetting of gear on distolateral hermetically.Pump chamber is the space between two gears, and this space is along circumferentially extending to pump discharge from pump intake.Briquetting has the shape of orifice plate usually and is passed by pump shaft, and this briquetting also is called as axial plate.Briquetting is set or only is provided with a briquetting on can be two of the gear of internal gear pump distolateral.Under latter event, pump chamber is for example closed and sealed through the shell body wall of pump case on another is distolateral, and wherein the pump case on this side is for example sealed, or it is exactly two shell body walls between the internal gear pump.When needing, this shell body wall can be understood that briquetting.
The briquetting of internal gear pump must be processed by high-abrasive material because otherwise gear particularly in the zone of its tooth top, flatten, this can cause the deterioration of efficiency and the charge oil pressure of blow-by, pump, just the pressure reduction between pump discharge and the pump intake reduces.Because pump intake and pump discharge pass briquetting, so briquetting has complicated shape.In addition, pump discharge also has pump intake in briquetting, to have so-called pressure field sometimes.Pressure field finger pressure piece upwards extends the space of one section width in week.Make this briquetting because complex-shaped and time-consuming and cost is high with high-abrasive material.
Summary of the invention
Foundation internal gear pump of the present invention with the said characteristic of claim 1 just has briquetting on the internal gear of internal gear pump and external gear distolateral on gear distolateral.Between briquetting and gear, the dish with high abrasion resistance strength can not be set with relatively rotating, this dish is closed and sealed with pump chamber on this is distolateral.The dish and/or briquetting can extend on the whole circumference or on the part at circumference, the dish week upwardly extending distance the pump chamber with internal gear pump is identical at least.Because dish can not be close on the briquetting with relatively rotating with briquetting on and do not have parts to slide along it, so not frayed in principle according to the briquetting of internal gear pump of the present invention.Advantage of the present invention is, briquetting can be made up of material with low cost, that be easy to process and/or can simply make, and briquetting for example can be by plastics through the injection moulding manufacturing.Very thin and therefore the dish that is arranged between the gear of briquetting and internal gear pump can need material seldom.Even dish is made up of the precious materials of high abrasion resistance strength, therefore the cost of material of dish also can remain on low-level.Another advantage is, because dish is thin, and can be to dish processing more simply.
Dependent claims has the favourable design proposal and further corrective measure to the content of the present invention that provides in the claim 1.Other characteristics of the present invention are provided by the explanation of facing mode of execution, accompanying drawing and claim down.Each characteristic can be individually or a plurality of combination in any ground in numerous embodiments of the present invention, realize.
Description of drawings
Below by means of the present invention being elaborated at the shown mode of execution of accompanying drawing.Wherein:
Fig. 1 shows the axial section according to internal gear pump of the present invention;
Fig. 2 shows the end elevation of the internal gear pump of Fig. 1;
Fig. 3 shows the dish of the internal gear pump of Fig. 1 and Fig. 2; And
Fig. 4 shows the briquetting of the internal gear pump of Fig. 1 and Fig. 2.
Embodiment
The internal gear pump 1 of the present invention of the foundation shown in Fig. 1 be have two internal gear pumps 2,2 ' dual pump.The intermeshing external gear 3,3 of each internal gear pump 2,2 ' have ' and internal gear 4,4 '.Two gears 3,4,3 ', 4 ' each other be eccentrically set in the plane.External gear 3,3 ' by star profile portion 5,5 ' connect with pump shaft 6 and can not reverse each other through form fit.The housing 7,7 of two internal gear pumps 2,2 ' be installed in two-piece type ' in, this housing is radially divided, with and two and half shells 7,7 ' be plugged into together vertically.Two gear pumps 2,2 ' between partition wall 8 is set.
External gear 3,3 ' and internal gear 4,4 ' between pump chamber 10 (Fig. 2) in be provided with and can pass filling member 11 said pin and pump shaft 6 parallel to an axiss around the arc sickle 11 of pin 12 swings.External gear 3,3 ' and internal gear 4,4 ' tooth top slip over along sickle 11.Internal gear pump 2,2 ' be so-called crescent pump therefore.The present invention is not limited on this structure of internal gear pump, and it for example also can be constructed to ring gear pump (not shown).Pump chamber 10 internal gear 4,4 ' inside along week upwards around external gear 3,3 ' extend to pump discharge 14 from pump intake 13.
Internal gear pump 2,2 ' away from each other distolateral be provided with briquetting 9,9 ', they have the columniform through hole 15 that is used for pump shaft 6.Fig. 4 shows the end elevation of briquetting 9.Briquetting 9 is a dish type, and they are made of plastics and through the injection moulding manufacturing.They have the shape of (just occupy above the hemicycle) sector that extends beyond 180 °.Additionally constitute inclined-plane 16 at transition part from the edge 17 of the tangential extension in edge of straight line to circumference.Briquetting 9 has the blind hole 18 and the pressure field 19 of the pin 12 that is used for sickle 11.Pressure field 19 is the spaces in briquetting 9 distolateral, and this space is towards internal gear pump 2,2 ' and upwards narrow down along extending circumferentially one segment distance and along week.This pressure field on the internal gear pump is known, and they are used for the axial hydraulic balance on pump intake and/or the pump discharge.Shown in internal gear pump 2,2 ' in, pressure field 19 is communicated with pump discharge 14, on pump intake 13, briquetting 9 has the portion of scabbling that constitutes by along the edge 17 of tangential extension, as substituting of pressure field.
On the left of Fig. 1, the briquetting 9 on the closed side of housing 7 additionally has the axle sleeve 20 that is used for swivel bearing pump shaft 6.The integral type constituent element that this axle sleeve 20 is briquettings 9.At the briquetting 9 on Fig. 1 right side ' do not have axle sleeve because pump shaft 6 utilize there internal gear pump 1,2,2 ' the unshowned motor bearings of drive motor be able to supporting.
Internal gear pump 2,2 ' briquetting 9,9 ' and gear 3,4,3 ', 4 ' between be provided with the dish 21,21 that constitutes by metal or other high-abrasive materials '.In end elevation (Fig. 3), dish 21 has the shape identical with briquetting 9.Dish 21 sealing pump chambers 10 and gear 3,4,3 ', 4 ' distolateral on the sealing of said gear.Dish 21,21 ' by pump shaft 6 and sickle 11,11 ' pin 12,12 ' pass, and keep thus and can not relatively rotate.Because coil 21,21 very thin, so, also be convenient to processing even they are made up of high-abrasive material.They only have hole columniform and that therefore can simply make.Near internal gear pump 2,2 ' distolateral on, the dish 21,21 have the fine setting otch 22.Be meant this this curvedly gear 3,4,3 ', 4 ' average tooth depth in extend one section the groove that limits.Fine setting otch 22 be used for gear 3,4,3 ', the pressure balance in 4 ' backlash, and reduce internal gear pump 2,2 ' noise form.
Two internal gear pumps 2,2 ' each other squint 180 °, that is to say, their pump chamber 10 is upwards observed opposite each other in week.
Internal gear pump 2,2 ' toward each other distolateral on, just internal gear pump 2,2 ' and partition wall 8 between likewise be provided with dish 21,21 ', as they be arranged on briquetting 9,9 ' and internal gear pump 2,2 ' between and the top introduction.Partition wall 8 can be regarded as equally internal gear pump 2,2 ' briquetting.
Pump intake 10 is directed passing partition wall 8 with pump discharge 14, and they are in the outside of section plane, and is therefore invisible.

Claims (8)

1. the internal gear pump of hydraulic vehicle brake system; Said internal gear pump has internal gear (4,4 ') and is eccentrically set on the external gear (3,3 ') that meshes with said internal gear (4,4 ') in the said internal gear; Said internal gear pump also has the briquetting (8,9,9 ') that can not be arranged on said external gear (3,3 ') and internal gear (4,4 ') distolateral with relatively rotating; It is characterized in that; Can not be provided with the dish (21,21 ') of high abrasion resistance strength at the briquetting (8,9,9 ') of a side and between the external gear (3,3 ') of opposite side and internal gear (4,4 ') with relatively rotating, this dish distolateral with gear (3,4,3 ', 4 ') sealing.
2. according to the described internal gear pump of claim 1, it is characterized in that said dish (21,21 ') is made up of metal and/or said briquetting (9,9 ') is made up of plastics.
3. according to the described internal gear pump of claim 1, it is characterized in that said internal gear pump (2,2 ') all has briquetting (8,9,9 ') and dish (21,21 ') on each of its gear (3,4,3 ', 4 ') is distolateral.
4. according to the described internal gear pump of claim 1, it is characterized in that pump intake (10) or pump discharge (14) are reserved the space by said briquetting (9,9 ') and/or said dish (21,21 ').
5. according to the described internal gear pump of claim 1, it is characterized in that inherent its has groove (22) to said dish (21,21 ') on a side of said gear (3,4,3 ', 4 ') in the zone of the tooth of gear (3,4,3 ', 4 ').
6. according to the described internal gear pump of claim 1, it is characterized in that said briquetting (9) has the bearing (20) of the pump shaft (6) that is used for said internal gear pump (2,2 ').
7. according to the described internal gear pump of claim 1, it is characterized in that internal gear pump (1) is the dual pump with two internal gear pumps (2,2 '), said two internal gear pumps have a common pump shaft (6).
8. according to the described internal gear pump of claim 7, it is characterized in that said dual pump has common briquetting (8) between two internal gear pumps (2,2 ').
CN2010800441856A 2009-10-01 2010-09-27 Axial sealing element for an internal gear pump Pending CN102782326A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009045227A DE102009045227A1 (en) 2009-10-01 2009-10-01 Internal gear pump for a hydraulic vehicle brake system
DE102009045227.3 2009-10-01
PCT/EP2010/064214 WO2011039128A2 (en) 2009-10-01 2010-09-27 Internal gear pump for a hydraulic vehicle braking system

Publications (1)

Publication Number Publication Date
CN102782326A true CN102782326A (en) 2012-11-14

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ID=43798655

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010800441856A Pending CN102782326A (en) 2009-10-01 2010-09-27 Axial sealing element for an internal gear pump

Country Status (6)

Country Link
US (1) US20120244028A1 (en)
EP (1) EP2483562A2 (en)
JP (1) JP2013506088A (en)
CN (1) CN102782326A (en)
DE (1) DE102009045227A1 (en)
WO (1) WO2011039128A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105980710A (en) * 2014-03-06 2016-09-28 日本油泵株式会社 Pump device
CN107939671A (en) * 2017-10-19 2018-04-20 浙江大学 A kind of tandem low pulse crescent gear pump with error angle
CN112780544A (en) * 2019-11-06 2021-05-11 罗伯特·博世有限公司 Internal gear machine with hydrostatically supported internal seal at the shim

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009045574A1 (en) * 2009-10-12 2011-04-14 Robert Bosch Gmbh Two internal gear pump
DE102013201384A1 (en) * 2013-01-29 2014-07-31 Robert Bosch Gmbh Internal gear pump
DE102013204616B4 (en) * 2013-03-15 2021-12-09 Robert Bosch Gmbh 2 internal gear pump
KR200486890Y1 (en) * 2016-07-05 2018-07-11 훌루테크 주식회사 Internal gear pump of combined structure simplified
DE102018212497A1 (en) * 2018-07-26 2020-01-30 Eckerle Technologies GmbH Fluid delivery device

Citations (9)

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FR1389993A (en) * 1964-04-11 1965-02-19 High flow, wear compensating gear pump
US3396668A (en) * 1965-11-23 1968-08-13 Danfoss As Rotary devices
DE1403923A1 (en) * 1960-09-26 1969-11-06 Oilenergetic Establishment High-performance radial-flow gear pump or motor
JPS57193788A (en) * 1981-05-22 1982-11-29 Kayaba Ind Co Ltd Internally engaged gear pump or motor
JPH0161477U (en) * 1987-10-14 1989-04-19
JP2000145658A (en) * 1998-11-12 2000-05-26 Toyota Motor Corp Internal gear pump
DE102005004657A1 (en) * 2005-02-02 2006-08-03 Eckerle Industrie-Elektronik Gmbh Inner gear wheel machine e.g. inner gear wheel pump, has sealing disk pressed on pressure field, gap between housing part and disk, and support ring arranged with bar that supports seal in form-fit manner and inwardly intervenes with seal
CN201176931Y (en) * 2008-02-02 2009-01-07 许从智 Differential high-pressure rotor pump
DE102007054808A1 (en) * 2007-11-16 2009-05-20 Robert Bosch Gmbh Pump assembly for synchronous pressurization of two fluid circuits

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CH405940A (en) * 1961-10-06 1966-01-15 Eckerle Otto High-performance gear pump compensated for wear
JPS5216803B2 (en) * 1973-07-04 1977-05-11
JPH0544651A (en) * 1991-08-12 1993-02-23 Toyooki Kogyo Co Ltd Internal gear pump
JPH0914152A (en) * 1995-06-30 1997-01-14 Jatco Corp Internal gear type rotary pump
JP4176408B2 (en) * 2002-07-25 2008-11-05 株式会社アドヴィックス Welding method and cylindrical structure and gear pump using the welding method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1403923A1 (en) * 1960-09-26 1969-11-06 Oilenergetic Establishment High-performance radial-flow gear pump or motor
FR1389993A (en) * 1964-04-11 1965-02-19 High flow, wear compensating gear pump
US3396668A (en) * 1965-11-23 1968-08-13 Danfoss As Rotary devices
JPS57193788A (en) * 1981-05-22 1982-11-29 Kayaba Ind Co Ltd Internally engaged gear pump or motor
JPH0161477U (en) * 1987-10-14 1989-04-19
JP2000145658A (en) * 1998-11-12 2000-05-26 Toyota Motor Corp Internal gear pump
DE102005004657A1 (en) * 2005-02-02 2006-08-03 Eckerle Industrie-Elektronik Gmbh Inner gear wheel machine e.g. inner gear wheel pump, has sealing disk pressed on pressure field, gap between housing part and disk, and support ring arranged with bar that supports seal in form-fit manner and inwardly intervenes with seal
DE102007054808A1 (en) * 2007-11-16 2009-05-20 Robert Bosch Gmbh Pump assembly for synchronous pressurization of two fluid circuits
CN201176931Y (en) * 2008-02-02 2009-01-07 许从智 Differential high-pressure rotor pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105980710A (en) * 2014-03-06 2016-09-28 日本油泵株式会社 Pump device
CN107939671A (en) * 2017-10-19 2018-04-20 浙江大学 A kind of tandem low pulse crescent gear pump with error angle
CN112780544A (en) * 2019-11-06 2021-05-11 罗伯特·博世有限公司 Internal gear machine with hydrostatically supported internal seal at the shim
CN112780544B (en) * 2019-11-06 2024-03-19 罗伯特·博世有限公司 Internal gear with hydrostatic support internal seal at gasket

Also Published As

Publication number Publication date
JP2013506088A (en) 2013-02-21
EP2483562A2 (en) 2012-08-08
WO2011039128A2 (en) 2011-04-07
WO2011039128A3 (en) 2011-11-10
DE102009045227A1 (en) 2011-04-21
US20120244028A1 (en) 2012-09-27

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Application publication date: 20121114