CN103620222A - Axial washer for a gear-type pump and gear-type pump comprising an axial washer of this type - Google Patents

Axial washer for a gear-type pump and gear-type pump comprising an axial washer of this type Download PDF

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Publication number
CN103620222A
CN103620222A CN201180060080.4A CN201180060080A CN103620222A CN 103620222 A CN103620222 A CN 103620222A CN 201180060080 A CN201180060080 A CN 201180060080A CN 103620222 A CN103620222 A CN 103620222A
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CN
China
Prior art keywords
gear
sealing
pump
dish
axial
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
CN201180060080.4A
Other languages
Chinese (zh)
Inventor
K·海尔
H·施佩尔
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 CN103620222A publication Critical patent/CN103620222A/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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/005—Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/005—Axial sealings for working fluid
    • F04C27/006—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type pumps, e.g. gear pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/102—Adjustment of the interstices between moving and fixed parts of the machine by means other than fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
    • 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
    • F04C15/0007—Radial sealings for working fluid
    • F04C15/0015—Radial sealings for working fluid of resilient material
    • 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
    • F04C15/0007—Radial sealings for working fluid
    • F04C15/0019—Radial sealing elements specially adapted for intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
    • 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
    • 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
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • 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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • 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
    • F04C2/102—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 the two members rotating simultaneously around their respective axes
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/602—Gap; Clearance

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

The invention relates to an axial washer (13) of a gear-type pump (1), in particular an internal gear pump. According to the invention, a seal (23) which surrounds a pressure area (22) of the axial washer (13) is applied to the axial washer (13) as a free-flowing bonding mass, said mass bonding with the axial washer (13).

Description

For the axial dish of gear pump and the gear pump with this axial dish
Technical field
The present invention relates to according to a kind of axial dish for gear pump of feature described in claim 1 or 4 preambles and a kind of gear pump with at least one this axial dish.
Background technique
Known axes is used for carrying out axial seal and carrying out backlash compensation in the gear both sides of gear pump to dish.For example, referring to patent documentation DE 196 13 833 B4, this patent documentation comprises a kind of axially internal gear pump for dish that respectively has in each side of its gear.Keep this axial dish can axial motion and non-rotatable.On the outer side surface that deviates from gear pump gear axially coiling, the inner side surface that axially dish is applied in pressure and faces gear with it presses against on gear, to seal vertically the pressure span of pump chamber.Pump chamber is a circumferential section between two gears, this circumferential section middle gear do not have intermeshing and at this circumferential section middle gear when gear pump is worked, when the gear of gear pump rotarilys actuate along circumferentially liquid being transported on the pressure side from the suction side of gear pump.Pressure span be in the ，Gai region, a region of pump chamber when gear pump is worked due to its conveying effect exist than suction side on higher pressure, in this region, pressure increases to the pressure of on the pressure side going up in other words.
In order to exert pressure, known internal gear pump has each pressure area axially coiling axially coiling for two.Pressure area is half moon-shaped flat recess, and this recess extends and is communicated with the pressure span of gear pump on the pressure span of pump chamber.Pressure area needn't have the accurate shape and size of pump chamber pressure span, and conventionally pressure area has the area larger than the pressure span of pump chamber, thereby produce by exerting pressure from outside, axial dish is inwardly pressed against to the power the side of gear of gear pump.Pressure area is sealed by a Sealing that surrounds pressure area.The seal embeds in the groove extending at an edge along pressure area.
When exerting pressure from outside, the meaning is that the pressure acting on pressure area Sealing outside pressure area is greater than the pressure in pressure area, exist Sealing to be pressed into the danger in pressure area, because the degree of depth of groove low pressure area on the side of pressure area than on outer side surface that Sealing embeds, this causes on the side of pressure area, the support of Sealing being worse than its outside support.
Summary of the invention
The axial dish with claim 1 feature according to the present invention has Sealing on its outer side surface, and the seal is surrounded a pressure area.According to the present invention, described Sealing is applied on axial dish as the material that can flow and condense.For example, for the material applying, be sticky and be coated onto axial dish by nozzle, it gives the shape of cross section of described material Sealing.By nozzle, be looped around the pressure area on axial dish, the material that rope shape for example or caterpillar shape are coated forms the Sealing that surrounds described pressure area after condensing.From nozzle out time, the viscosity of described material makes this material keep its shape, that is, not only keep it to surround the trend of described pressure area but also keep its shape of cross section.After condensing, the material being coated onto on axial dish forms the Sealing that surrounds the pressure area axially coiling.By condensing, the material and then the Sealing that form Sealing are connected with axial dish with the mode of material connection, the mode that is to say to paste.Described material preferred rubber is flexibly condensed, and makes it form flexible Sealing.
Condense and refer to, can flow, for example sticky material is solidified into Sealing, irrelevant with curing mechanism.Described Sealing as described in after condensing, to be preferably (rubber) flexible.
The invention has the advantages that, support and keep Sealing well, even if particularly also support well and keep Sealing when exerting pressure from outside.Another advantage is, by Sealing as described, as sticky sealing substance, by nozzle, be coated onto on axial dish, Sealing according to the present invention is suitable for automatically manufacturing and being installed on axial dish, wherein by robot or other machines, along the edge of pressure area, axially above dish, guiding described nozzle, or conversely above nozzle leading axle to dish.Saved Sealing is assembled to, that is to say seal ring is embedded in the groove on edge, pressure area.Similarly, avoided when Assembling gear pump Sealing do not have as defined be embedded in the danger in groove.Also can imagine, by injection mould, Sealing is coated onto on axial dish.The shape that injection mould has a Sealing is as die cavity and for molded seals, clamp mutually with axial dish for the material condensing that forms Sealing being coated onto on axial dish, makes axial disk seal close the die cavity of (covering) injection mould and the material that condenses can be poured in described die cavity.
Can be in the outer side surface of axial dish and/or in the inwall of the pump case of gear pump, pressure area is set, axially dish is arranged between the inwall of pump case and the gear of gear pump.Claim 2 has been stipulated the pressure area on the outer side surface axially coiling.
In order to support well, keep Sealing, claim 3 regulation, Sealing is coated in the groove or groove that surrounds pressure area.Described groove or groove overcome the pressure-loaded supporting sealing member of the outer side surface that is parallel to axial dish, wherein groove supporting sealing member in one direction only.
The content of claim 4 is gear pumps with axial dish as previously set forth.Preferably, gear pump has axial dish on the both sides of its gear.Pressure area can design on the outer side surface axially coiling and/or on the inwall of pump case, and axially dish is arranged between the inwall of pump case and the gear of gear pump.Similarly, the material (this material forms Sealing after condensing) that can flow and condense can be coated onto on the outer side surface of axial dish and/or on the inwall of pump case, wherein also exist Sealing is coated onto to the feasible program on gear pump inwall on axial dish and by pressure area design, or feasible program in contrast.
Claim 5 regulation, gear pump is internal gear pump.
According to gear pump of the present invention, designed to be used especially the oil hydraulic pump of carrying brake fluid in the motor vehicle braking system of the anti-skidding control function of having of hydraulic pressure and/or booster vehicle braking system.This pump is often called as reflux pump, although not definitely appropriate.
Accompanying drawing explanation
According to embodiment illustrated in the accompanying drawings, explain in detail the present invention below.In accompanying drawing:
Fig. 1 shows according to of the present invention not with the side view of the gear pump of pump case;
Fig. 2 shows the axial sectional view of cutting open along the line II-II in Fig. 1; And
Fig. 3 show in Fig. 1 and Fig. 2 according to the view of the axial dish of gear pump of the present invention.
Embodiment
At the gear pump 1 according to the present invention shown in Fig. 1 and Fig. 2, be internal gear pump and be used as oil hydraulic pump, for the motor vehicle braking system in the anti-skidding control function of having of unshowned hydraulic pressure and/or booster vehicle braking system, produce hydraulic brake pressure.This oil hydraulic pump for motor vehicle braking system is also referred to as reflux pump, although not definitely appropriate.Gear pump 1 has two pitch wheels 2,3,, is also referred to as the gear of outer gearing and the gear ring of interior engagement 3 of small gear 2 here that is.Small gear 2 can not be positioned on pump shaft 4 with the relative rotation, and this small gear can be driven in rotation by the rotary actuation of pump shaft 4, and drives gear ring 3 rotations from this small gear this respect, this gear ring 3 rotatably sliding bearing in bearer ring 5.
Gear 2,3 limits out a half moon-shaped pump chamber 6 between them, is furnished with half moon-shaped divider 7 in this pump chamber, and this divider is divided into pump chamber 6 to suck region 8 and pressure span 9.The pin 10 that is horizontally through pump chamber 6 keeps divider 7, and divider 7 is swingable on pin 10.The tooth top of the tooth of gear 2,3 abuts on the outer side surface and inner side surface of divider 7, and outer side surface and the inner side surface along divider 7 slides when gear 2,3 is driven in rotation.When gear pump 1 work, while that is to say the rotary actuation at gear 2,3, gear 2,3 is transported to the brake fluid or the general designation liquid that are enclosed in the backlash of its tooth pressure span 9, from the portion of entering of gear pump 1, is transported to discharge portion from sucking region 8.Enter hole 11 and be passed into and suck in region 8, pump discharge portion realizes by the gap 12 of the axial dish 13 that also will set forth.
For pump chamber 6 is carried out to axial seal, the gear pump 1 that is configured to internal gear pump respectively has an axially dish 13 on the both sides of gear 2,3.If axially coil 13 edge 17,18, by gear 2,3, covered, in Fig. 1, just by dotted lines, go out edge 17,18.Fig. 3 shows two outer side surfaces that axially coil that axially coil in 13.Axially dish 13 is located in the space between the inwall 14,15 of gear 2,3 and pump case 16.Axially dish 13 at least covers the pressure span 9 of pump chamber 6, in the present embodiment, axially dish 13 has the shape of circular segment, and it occupies more than the area of hemicycle and at the transition part from circular edge 17 to the straight edge 18 of extending along chord line, has the recess 19 of oblique stepped shape.Axially dish 13 has for the hole 20 of pump shaft 4 and for the hole 21 of pin 10, and this pin keeps half moon-shaped divider 7.Axially dish 13 is movable in the axial direction and keeps not rotatable by pump shaft 4 and pin 10.Axially with it, the inner side surfaces in the face of gear 2,3 abut on the side of gear 2,3 and crescent divider 7 and in side pump chamber 6 sealings dish 13.
At it, deviate from the outer side surface of gear 2,3, axially coil 13 and there is respectively a pressure area 22.In this this pressure area, be the flat crescent recess in the outer side surface of axial dish 13, it extends beyond the pressure span of pump chamber 6 hermetically always from the zone line of divider 7.Pressure area 22 externally extends until axially coil near 13 circular edge 17, inner until near the hole 20 for pump shaft 4.Pressure area 22 is surrounded by a groove, and Sealing 23 is arranged in described groove.Sealing 23 was coated onto in the groove of encirclement pressure area 22 of axial dish 13 in the mode of moulding before gear pump 1 assembling as the sticky material that can flow.Coating realizes by the nozzle of not drawing, its nozzle in order to be coated with the above material along concave slot sports.Described nozzle is moulding, if described material is outstanding from groove, this nozzle gives described material its shape of cross section.In the time of in the groove of encirclement pressure area 22 that is coated onto axial dish 13, the viscosity of described material makes it keep described nozzle to give its shape and cross section.In the present embodiment, described material protrudes from the outer side surface of axial dish 13 from groove to have the projecting shape of semi-circular cross-section.By the groove of the encirclement pressure area 22 in the outer side surface at axial dish 13, reduce the danger of material outflow that can be mobile, described groove supports and simplifies the manufacture of Sealing to described material.By condensing, the mode that Sealing 23 connects with material is connected with axial dish 13.Condense and the assembling of gear pump 1 after, the outstanding Sealing 23 of outer side surface that shape ground exceeds axial dish 13 slightly of swelling as described above abuts on the inwall 14,15 of pump case 16 and in inwall 14,15Shang sealing load district 22.One of them inwall 14 is formed by the bottom of the stepped shaft counterbore of pump case 16, and gear pump 1 is arranged in described pump case 16.Another inwall 15 is formed by the inner side surface of the housing lid 24 of sealing pump case 16.
Within pressure area 22, described axial dish 13 is run through in the 12，Gai gap, gap that described axial dish 13 has an arc of having referred to.Gap 12 is arranged in the pressure span 9 of pump chamber 6, and pressure area 22 is communicated with the pressure span 9 that is constructed to the gear pump 1 of internal gear pump.Therefore, axially coil 13 pressure area 22 and be applied in the pressure in the pressure span 9 that is present in gear pump 1, that is to say the pressure that is applied in pump discharge portion.This pressure-loaded put on the outer side surface of axial dish 13 and push this axially dish it is clinged on the gear 2,3 and divider 7 of gear pump 1 hermetically with inner side surface, realized thus the lateral seal of pump chamber 6 in pressure span 9.Pressure span 9 is communicated with the tap hole 25 in pump case 16 by two gaps 12 of axially coiling of axially coiling in 13.
When starting be sticky material Sealing 23 moulding apply (described material condenses into flexible Sealing 23 in the groove of the axial encirclement pressure area 22 of dish 13), the mode that described Sealing 23 connects with material with axially coil 13 and be connected.By Sealing being coated onto in the groove that surrounds described pressure area 22, described Sealing 23 obtains extra support and keeps.
In the present embodiment, pump case 16 is parts of hydraulic block of all the other unshowned anti-skidding control devices of hydraulic vehicle brake system.Except forming the gear pump 1 of oil hydraulic pump of anti-skidding control device, other hydraulic element are inserted in the hydraulic block that forms pump case 16 and hydraulic connecting mutually as solenoid valve.This hydraulic block is known for technicians and does not repeat them here.In order to fill motor vehicle braking system, first this motor vehicle braking system is vacuumized, to avoid air plankton.Next fill brake fluid.Now can exert pressure by the Sealing 23 to pressure area 22 from outside, that is, pressure is externally higher than the pressure in pressure area 22.Because Sealing 23 moulding ground apply and the mode that connects with material thus with axially coil 13 and be connected, so that the seal sustains is this from outside pressure-loaded.The groove of the encirclement pressure area 22 that additionally, Sealing 23 is positioned at by Sealing 23 obtains to support and keeps.
Groove and/or pressure area 22 with Sealing 23 can not be arranged in the outer side surface of axial dish 13, but be set in the inwall 14,15 of pump case 16, wherein Sealing 23 also can be arranged in the outer side surface of axial dish 13 and pressure area 22 is arranged in the inwall 14,15 of pump case 16, or arranges on the contrary.Also feasible, pressure area 22 and/or Sealing 23 are not only arranged on the outer side surface of axial dish 13 but also are arranged on (not shown) on the inwall 14,15 of pump case 16.
Pump shaft 4 is sealed in housing lid 24 by sliding bearing by two bearing sleeves 26 on gear 2,3 both sides in pump case 16 and housing lid 24 and by Sealing 27.

Claims (5)

1. the axial dish for gear pump (1), it is characterized in that, described axial dish (13) has Sealing (23) on outer side surface, the seal is surrounded a pressure area (22), and described Sealing (23) as the material that can flow and condense, to be coated onto described axial dish (13) upper, described material forms Sealing (23) and is connected with described axial dish (13) in the mode of material connection condensing after.
2. according to axial dish claimed in claim 1, it is characterized in that, described axial dish (13) has described pressure area (22).
3. according to axial dish claimed in claim 1, it is characterized in that, described Sealing (23) is coated onto in groove or groove, and described groove or groove surround described pressure area (22).
4. a gear pump, there are two meshed gears (2, 3), having can axial motion, not revolvable axial dish (13) is positioned at described gear (2 for laterally sealing, 3) pressure span (9) of the pump chamber between (6), have at described gear (2, 3) deviate from described gear (2, 3) pressure area on outer side surface (22), described pressure area (22) is communicated with described pressure span (9), make described axial dish (13) by the pressure-loaded from outside, be pressed against the gear (2 of gear pump (1), 3) on side, and described gear pump has the Sealing (23) that surrounds described pressure area (22), it is characterized in that, described Sealing (23) is coated onto the pump case (16 of described axial dish (13) or described gear pump (1) as the material that can flow and condense, 24) the inwall (14 in the face of described axial dish (13), 15) on, wherein, mode and described axial dish (13) or described pump case (16 that the mobile material of energy forms described Sealing (23) and connects with material after condensing, 24) inwall (14, 15) connect.
5. according to gear pump claimed in claim 4, it is characterized in that, described gear pump (1) is internal gear pump.
CN201180060080.4A 2010-12-17 2011-11-30 Axial washer for a gear-type pump and gear-type pump comprising an axial washer of this type Pending CN103620222A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010063313A DE102010063313A1 (en) 2010-12-17 2010-12-17 Axial disc for a gear pump and gear pump with such an axial disc
DE102010063313.5 2010-12-17
PCT/EP2011/071358 WO2012079982A2 (en) 2010-12-17 2011-11-30 Axial washer for a gear-type pump and gear-type pump comprising an axial washer of this type

Publications (1)

Publication Number Publication Date
CN103620222A true CN103620222A (en) 2014-03-05

Family

ID=45047830

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201180060080.4A Pending CN103620222A (en) 2010-12-17 2011-11-30 Axial washer for a gear-type pump and gear-type pump comprising an axial washer of this type

Country Status (7)

Country Link
US (1) US20140030129A1 (en)
EP (1) EP2686556A2 (en)
JP (1) JP2014506969A (en)
KR (1) KR20130141595A (en)
CN (1) CN103620222A (en)
DE (1) DE102010063313A1 (en)
WO (1) WO2012079982A2 (en)

Cited By (2)

* 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
CN112513464A (en) * 2018-07-26 2021-03-16 艾可勒科技公司 Fluid delivery device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012219132A1 (en) * 2012-10-19 2014-04-24 Robert Bosch Gmbh Internal gear pump for a hydraulic vehicle brake system
DE102013201384A1 (en) * 2013-01-29 2014-07-31 Robert Bosch Gmbh Internal gear pump
KR200486890Y1 (en) 2016-07-05 2018-07-11 훌루테크 주식회사 Internal gear pump of combined structure simplified
EP4381173A1 (en) * 2021-08-05 2024-06-12 Hydraulik Nord Technologies GmbH Internal gear machine

Citations (9)

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EP2686556A2 (en) 2014-01-22
WO2012079982A3 (en) 2013-12-19
WO2012079982A2 (en) 2012-06-21
KR20130141595A (en) 2013-12-26
DE102010063313A1 (en) 2012-06-21
JP2014506969A (en) 2014-03-20

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