CN103032341A - Adjustable coolant pump with integrated pressure chamber - Google Patents
Adjustable coolant pump with integrated pressure chamber Download PDFInfo
- Publication number
- CN103032341A CN103032341A CN2012103774984A CN201210377498A CN103032341A CN 103032341 A CN103032341 A CN 103032341A CN 2012103774984 A CN2012103774984 A CN 2012103774984A CN 201210377498 A CN201210377498 A CN 201210377498A CN 103032341 A CN103032341 A CN 103032341A
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- China
- Prior art keywords
- guide plate
- impeller
- cooling medium
- pump
- pressure
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0027—Varying behaviour or the very pump
- F04D15/0038—Varying behaviour or the very pump by varying the effective cross-sectional area of flow through the rotor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An adjustable coolant pump with an integrated pressure chamber. A regulatable coolant pump (1) of an internal combustion engine has a pump housing (2) in which a pump shaft (3) with an associated impeller (4) is rotatably mounted. The impeller conveys a coolant via an intake (9) connection into a pressure channel of the coolant pump (1), a volume flow of the coolant pump being adjustable by a guide plate (10) that externally surrounds the impeller at least in some regions and is displaceable by a pressure medium. The guide plate is connected in rotationally fixed fashion to the impeller and is continuously axially displaceable between two end positions and guided with a cylindrical bushing (13), with play at both sides, in an annular groove (14) of the impeller or of an insert (5) enclosed by the impeller. The guide plate, the pump shaft, the insert part, and/or the impeller together delimit a pressure chamber (12) that is charged by the pressure medium in order to displace the guide plate.
Description
Technical field
The present invention relates to the adjustable cooling medium pump of internal-combustion engine, with pump case, rotatably support has the pump shaft with affiliated impeller in this pump case.Impeller carries cooling medium in the pressure channel of cooling medium pump via inhalation interface, and wherein, the volume flowrate of cooling medium pump can affect by guide plate.For this reason, guide plate at least region-type ground at outer ring around impeller and can be torsional rigid ground (drehstarr) mobile by pressure medium hydraulic type ground between two end attitudes.
Background technique
Vehicle is mainly by driving through water-cooled internal-combustion engine.At this, the help that cooling medium relies on cooling medium pump is pumped and through the cooling that next refluxes in Air-Water-heat exchanger of the cooling medium of heating in the loop of the closure of passing crankshaft shell and cooling channel cylinder head of internal combustion engine.In order to support the circulation of cooling medium, use the cooling medium pump that particularly directly drives via belt drive unit.The dependence of the revolution of pump revolution combustion motor appears by the direct connection between cooling medium pump and bent axle.Draw thus, in the situation that internal-combustion engine cold start-up cooling medium circulation, postpone thus internal-combustion engine hope, fast heating.In order to optimize the operation of internal-combustion engine, following is necessary, reaches as quickly as possible running temperature after cold start-up that is:.Reduce thus frictional loss and fuel consumption and then reduce simultaneously discharge value.In order to obtain this effect, use adjustable cooling medium pump, the volume flowrate that this cooling medium pump is carried can be coordinated according to the cooling requirement of internal-combustion engine.Before the volume flowrate temperature levels that next depends on appearance, that be identified for cooling internal combustion engines raises continuously, at first make every effort to zero conveying of cooling medium pump after cold start-up.The campaign of the fuel consumption by be used for optimizing internal-combustion engine can by the measure of the rule of heat management system in addition in conjunction with the cooling medium pump of being adjusted obtain 〉=consumption of 3% fuel descends.
By the known cooling medium pump of being adjusted of DE 199 01 123A1, in this cooling medium pump, as the measure that affects volume flowrate, to impeller attach troops to a unit have outside, the overlap joint movable component.Can change the width of blade that works of impeller with movable component that infinitely can axial adjustment by being reversing of screw-shaped guiding device.
DE 10 2,008 046 424A1 disclose the adjustable cooling medium pump for the cooling circuit of internal-combustion engine, and this cooling medium pump drives via traction mechanism drive.In order to affect quantity delivered, attaching troops to a unit to impeller has axially movable positioning disk, and this positioning disk can move axially in conjunction with controlling mechanism by the catch bar that is placed on as the inside of the hollow shaft of impeller.This controlling mechanism comprises the armature that firmly is connected with catch bar, and this armature can on purpose move axially via ratio magnet.For this reason, the steerable controlling mechanism in electric ground in other words actuator in the distolateral axial arrangement length that is prepended to belt pulley and affects cooling medium pump.
According to the cooling medium pump of being adjusted of DE 10 2,005 062 200A1 be illustrated in support in the pump case, with the axle through driving of affiliated impeller and pneumatic type ground or the adjustable valve driving member in hydraulic type ground, this valve driving member covers the discharging area of impeller changeably.Be furnished with a plurality of piston rods that distribute at periphery at this valve driving member, described piston rod is parallel to pump shaft ground and distributes and be directed to annular slot and seal in pump case in the hole and by shaft seal in other words in pump case.Piston rod is in effect at annular slot side and the annular piston that inserts and is connected in pressure space.The movement of the annular piston that is loaded by pressure spring and the movement of the valve driving member that is connected with this annular piston are carried out via the pressure-loaded of pressure space, and this pressure space has the pressure interface hole for this reason.
Summary of the invention
Task of the present invention is, realizes that in the inside of adjustable cooling medium pump the hydraulic type with member optimization of the simplification of guide plate is regulated.
This task is set out by the preamble of claim 1 and is solved in conjunction with its feature of characteristic.Dependent claims is then described each favourable improvement project of the present invention.
The present invention that is: is directly loaded guide plate for the adjusting of hydraulic type ground according to general idea by pressure medium.For this reason, the common boundary of distolateral and impeller of guide plate and pump shaft goes out pressure space.For this reason alternatively, can surround the insertion parts that is configured to intermediary element by pump shaft and the determined pressure space boundary of impeller, this insertion parts tip side be fitted on the pump shaft and on ground, the outside by vane rings around.That guide plate is rabbeted insertion parts in locking manner with shell-like section (Buchse) shape that is configured to cylindrical sleeve or impeller in the annular slot that a side is opened wide.Run off for fear of loss of pressure and/or pressure medium, in annular slot, insert hermetically shell-like section.The preferred formation of guide plate arranges as follows, that is: use to have the insertion parts of relatively large diameter, thus based on the dependence on the size, the large pressure side of guide plate occurs being used for handling.For the purpose of expedite adjustment movement, the annular slot degree of depth surpasses the length of shell-like section.The present invention has following advantage with respect to known solution, that is: by means of simple device, little structure size, the member scale that reduces and large safety in operation, it also is attainable in the closed state of guide plate that zero of the hope of not only reducing of volume flowrate, and cooling medium pump is carried.At this, be used for the structural consumption of realization foundation measure of the present invention advantageously seldom, because all optional in special measure on the pump drive and on pump case.In addition, cost advantage appears in the installation based on the simplification of guide plate.
According to preferred design proposal of the present invention, impeller comprises the insertion parts that single part formula ground or multi-part formula ground make up.Fixing in order to rotate, the shaft end of pump shaft preferably, force closure is expressed to the place of holding at center of insertion parts in other words in the hole.The insertion parts of intermediary element function can be by different materials, preferably made by composite, metal or Steel material.Impeller preferably, material for example seals with insertion parts by composite in locking manner and be connected, and at this, it is as insertion parts.It is alternative that what be fit in this place is that insertion parts is pressed in the impeller.
In addition, for the sealing of pressure space with for the guiding of guide plate, be provided with the seal element that locate regularly the position in the annular slot of the annular slot of the fixing insertion parts in position or impeller, the sealing element is hermetically in the shell-like section of medial support at guide plate.O shape ring or be suitable as seal element by the seal element of elastomeric and anti abrasive composite manufacturing guides in shell-like section to the seal lip force closure of sealing element.Flexible seal element advantageously compensates relative to each other tolerance that the processing of the member that supports causes or that occurred by thermal expansion.Alternative in the structure of single part, the seal element through reinforcing is suitable, and it is vulcanized for example being extruded with reinforcing portion and sealing material in the situation of this seal element through reinforcing in annular slot.Seal element preferably entirely or partly by thermoplastic composite, preferably by polyvinylidene fluoride (PVDF) or polytetrafluoroethylene (PTFE) manufacturing.Based on the low friction factor of PTFE, good wear resistance and the high stability of relative water-ethylene glycol-mixture of using in cooling medium, PTFE is suitable as material.
In addition, according to the following setting of structure of the present invention, that is: for the axial adjustment guide plate, pressure medium is via in the longitudinal hole feed pressure space of pump shaft inside.Therefore, for example the pressure medium that guides via control unit or regulation unit of pressure medium source can directly load guide plate.
As the measure of avoiding reducing in other words at unallowed, the high stress level of the inside of pressure space pressure, introducing in shell-like section has at least one breakthrough portion radially.Arrange for this reason this opening such as upper/lower positions, its part amount that in the zero guide plate end position of carrying corresponding to cooling medium pump, makes cooling medium by pressure space in stress-free zone or the outflow of mentioning in the absorption district of cooling medium pump become possibility.
In addition, has the external frame that play ground surrounds the impeller rear wall according to guide plate of the present invention with breast board outside, that at right angles be orientated.By carrying out such as lower seal, the seal is inserted in the radial oriented groove of external frame of impeller rear wall in the sealing of the annular gap of this formation, and this groove makes Sealing force closure ground, abuts on the breast board of guide plate in the inboard.This structure has been supported described measure, in order to realize the zero quantity delivered of cooling medium pump in the attitude of the end of guide plate.
As at actuator or be used for to regulate the measure that guarantees the cooling of internal-combustion engine in the situation of pressure medium supply unit fault of guide plate, be provided with fail-safe device according to the present invention.This fail-safe device forms by the spring element in the annular slot that is arranged in insertion parts, and this spring element is in reverse to the shell-like section of the force direction loading guide plate of pressure medium.Under damaged condition, this spring element automatically moves to guide plate in the following location, and this location is corresponding to the opening of the maximum of impeller and then corresponding to the quantity delivered of the maximum of cooling medium pump.
Description of drawings
Further feature of the present invention is drawn by ensuing description to figure, in preferred embodiment shown in these figure.Wherein:
Fig. 1 shown in the sectional drawing with according to the structure of cooling medium pump guide plate of the present invention, that adjusted;
Fig. 2 shown in the figure that amplifies according to the intercept of the cooling medium pump of Fig. 1, this intercept is illustrated the structure of guide plate.
Embodiment
In Fig. 1, adjustable cooling medium pump 1 draws in sectional arrangement drawing, and this cooling medium pump comprises pump case 2, and rotatably support has pump shaft 3 and gives this pump shaft at the tip side impeller 4 of attaching troops to a unit in this pump case 2.At this, be pressed with insertion parts 5 at the spindle nose of pump shaft 3, this insertion parts by the rear wall 6 of impeller 4 outer ring around.Impeller 4, crooked, be that spade ground is shaped, from blade 7 extensions of rear wall 6s until at distolateral pump cover 8, the open cross-section of this pump cover 8 limits inhalation interface 9, via this inhalation interface 9, cooling medium axially enters in the cooling medium pump 1 and cooling medium radially is discharged in Fig. 1 in unillustrated pressure channel or the helical duct.The feed flow of cooling medium pump 1 or volume flowrate can affect with axially movable guide plate 10, can cover changeably the discharge areas of impeller 4 with this guide plate 10.This guide plate 10 be adjusted in being connected of regulon in hydraulic type ground carry out, this regulon also can be called driving mechanism or actuator and this regulon comprises pressure medium source, oil hydraulic pump and control unit or regulation unit.For example the control unit of electronic control or regulation unit preferably are connected with the motor management system of internal-combustion engine, thus, directly rely on coolant temperature or running temperature, perhaps considering under other the parameter, the required flow of cooling medium of each of internal-combustion engine flows into via the corresponding adjustment of guide plate 10.Fig. 1 is confined to the illustrating of pressure medium input device 11 of regulon, this pressure medium input device 11 is embodied as at the longitudinal hole of pump shaft 3 inside and this pressure medium input device until the guiding of pressure space 12 ground, and this pressure space is by guide plate 10 and pump shaft 3 and insertion parts 5 boundaries.
For between two end positions that limit at the rear wall 6 by pump cover 8 and impeller 4, infinitely regulate guide plate 10, this guide plate 10 is directly loaded by pressure medium.In the rear wall side, shell-like section 13 that guide plate 10 integrally consists of with cylinder formula ground, that be orientated concentrically with respect to the longitudinal axis of cooling medium pump 1 is connected, and this shell-like section 13 is encased in the annular slot 14 with having play.For the sealing of pressure space 12, the seal element 15 of location in the circumferential groove 16 in insertion parts 5 is arranged in shell-like section 13 upper supports in the inboard, sealing element 15 is avoided pressure medium to run off and then is avoided loss of pressure.In Fig. 1, guide plate 10 is supported on the rear wall 6, the opening of the maximum of impeller 4 occurs thus, and cooling medium pump 1 is carried maximum volume flowrate in this maximum opening.With respect to pressure space 12 ground that radially staggers, corresponding to the wide ground of the type of blade 7, introducing in guide plate 10 has adaptive opening 21, this opening to make the axial adjustment of the guide plate 10 of relative impeller 4 become possibility.In the outside, guide plate 10 forms at right angles the breast board 17 to pump case 2 directions orientation, and these breast board 17 compartment of terrains surround the profile outside of impeller rear wall 6 and have length above the width of rear wall 6 at this.Annular gap 18 in this appearance seals by Sealing 19, abuts on the breast board 17 in the groove 20 of the seal 19 insertion rear walls 6 and in the inboard.
Fig. 2 illustrates the particular of impeller 4 and illustrates other details of guide plate 10, particularly its formation and layout.Design as follows the degree of depth of annular slot 14 in insertion parts 5 inside, thereby guide plate 10 is not hindered with the adjustment movement of the shell-like section 13 that is connected with this guide plate.In order to avoid unallowed, high pressure rise in the inside of pressure space 12 in the situation that guide plate 10 abuts in pump cover 8, the part amount of hydraulic fluid can be discharged by control.To this, introducing in the end regions of shell-like section 13 has the breakthrough portion 22 of discharging for hydraulic fluid.On the previously described end position of guide plate 10, the breakthrough portion is prepended to seal element 15, occurs thus and the descend discharge of the hydraulic fluid that contacts of stress level in pressure space 12 inside.Depart from ground with illustrating of foundation Fig. 2, can also multi-part formulas ground, particularly two component type ground structure in the insertion parts 5 that pack in the place 27 holding of the rear wall 6 of impeller 4.For this reason, being tubular inner piece can make up with the exterior part around annular slot 14.For at actuator be used for to handle the function that guarantees cooling medium pump 1 in the situation of pressure medium supply unit fault of guide plate 10, be provided with fail-safe device 23.For this reason, shell-like section 13 between the stop member 25 of the flange 24 of tip side and insertion parts 5, be inserted with spring device 26 in the inside of annular slot 14, pressure spring particularly, this pressure spring are to rear wall 6 directions and then be in reverse to pressure medium flow power and load guide plate 10.Work to fail-safe device 23 as following mode, that is: in the situation of the pressure decreased of pressure space 12 inside, guide plate 10 automatically moves to the direction of arrow, until abut on the rear wall 6, the opening of the maximum of impeller 4 occurs thus.
Reference numerals list
1 cooling medium pump
2 pump case
3 pump shafts
4 impellers
5 insertion parts
6 rear walls
7 blades
8 pump covers
9 inhalation interfaces
10 guide plates
11 pressure medium input devices
12 pressure spaces
13 shell-like sections
14 annular slots
15 seal elements
16 circumferential grooves
17 breast boards
18 annular gaps
19 Sealings
20 grooves
21 openings
22 breakthrough portions
23 fail-safe devices
24 flanges
25 stop members
26 spring devices
27 hold the place
Claims (9)
1. the cooling medium pump (1) that can adjust of internal-combustion engine, with pump case (2), in described pump case (2), can be supported with rotationally the pump shaft (3) with affiliated impeller (4), described impeller (4) carries cooling medium in the pressure channel or helical duct of described cooling medium pump (1) via inhalation interface (9), wherein, the volume flowrate of described cooling medium pump (1) can affect at the guide plate (10) with can hydraulic type regulating of outer ring around described impeller (4) by region-type ground at least, wherein, described guide plate (10) can be torsional rigid ground and infinitely move axially between two end attitudes with described impeller (4) with being connected, it is characterized in that, described guide plate (10) all has the mode of play with both sides with the shell-like section (13) of cylinder formula, be directed to hermetically described impeller (4) annular slot or by described impeller (4) around the annular slot (14) of insertion parts (5) in and described guide plate (10) go out in order to regulate described guide plate (10) by the pressure space (12) of pressure medium loading with described pump shaft (3) and the common boundary of described insertion parts (5).
2. cooling medium pump according to claim 1, it is characterized in that, described pressure space depends on the attitude of described guide plate (10), by the common boundary of described guide plate (10) and described pump shaft (3), described insertion parts (5) and described impeller (4).
3. cooling medium pump according to claim 1, it is characterized in that, insertion parts (5) material of being made by composite, metal or Steel material that single-piece ground or multi-part type ground make up in locking manner and/or force closure be inserted in the holding in the place (27) of described impeller (4).
4. cooling medium pump according to claim 1, it is characterized in that, sealing for described pressure space (12), be provided with the fixing seal element (15) in position in the annular slot (14) of the annular slot of the fixing described insertion parts (5) in position or described impeller (4), described seal element (15) force closure, in the described shell-like section (13) of medial support at described guide plate (10).
5. according to claim 1 to one of 4 described cooling medium pumps, it is characterized in that, for the described guide plate of axial adjustment (10), described pressure medium flow in the described pressure space (12) via the pressure medium input device (11) of the longitudinal hole that is embodied as described pump shaft (3).
6. according to claim 1 to one of 5 described cooling medium pumps, it is characterized in that, in an end position of described guide plate (10), can reduce at the inner stress level of described pressure space (12) via at least one breakthrough portion (22) radially in described shell-like section (13).
7. according to claim 1 to one of 6 described cooling medium pumps, it is characterized in that, described guide plate (10) outside, through the breast board (17) of bending in the situation that keep annular gap (18), have the external frame of the rear wall (6) of the play ground described impeller of encirclement (4).
8. cooling medium pump according to claim 7, it is characterized in that, the upper force closure of the described breast board (17) of described guide plate (10) be supported with Sealing (19) in the radial oriented groove (20) of the external frame that is inserted in described impeller rear wall (6).
9. according to claim 1 to one of 8 described cooling medium pumps, it is characterized in that, as emergency protection, the described shell-like section (13) of described guide plate (10) cooperates with fail-safe device in the annular slot (14) that is configured to annular slot spring device (26), that be inserted in described insertion parts (5) or described impeller (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011083805.8 | 2011-09-30 | ||
| DE102011083805A DE102011083805A1 (en) | 2011-09-30 | 2011-09-30 | Adjustable coolant pump with integrated pressure chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103032341A true CN103032341A (en) | 2013-04-10 |
Family
ID=45894197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103774984A Pending CN103032341A (en) | 2011-09-30 | 2012-10-08 | Adjustable coolant pump with integrated pressure chamber |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20130081583A1 (en) |
| EP (1) | EP2574793A2 (en) |
| CN (1) | CN103032341A (en) |
| DE (1) | DE102011083805A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564302A (en) * | 2015-01-29 | 2015-04-29 | 浙江吉利控股集团有限公司 | Automobile engine |
| CN104819172A (en) * | 2014-02-03 | 2015-08-05 | 舍弗勒技术股份两合公司 | Dirt trap as a functional module in the impeller of a coolant pump |
| CN105814316A (en) * | 2013-10-30 | 2016-07-27 | 皮尔伯格有限责任公司 | Coolant pump with hydraulically adjustable valve slide, with integrated secondary pump and electromagnetic valve for generating and controlling regulating pressure |
| CN108019356A (en) * | 2017-12-28 | 2018-05-11 | 湖南泵阀制造有限公司 | It is a kind of that there is the Multifunction centrifugal pump and pipe-line system for adjusting stream and break-in facility |
| CN108119391A (en) * | 2016-11-30 | 2018-06-05 | 长城汽车股份有限公司 | Water pump and vehicle |
| CN113921878A (en) * | 2020-07-07 | 2022-01-11 | 本田技研工业株式会社 | Method for manufacturing fuel cell stack |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015119093A1 (en) * | 2015-11-06 | 2017-05-11 | Pierburg Gmbh | Coolant pump for an internal combustion engine |
| KR102451915B1 (en) * | 2018-03-27 | 2022-10-06 | 현대자동차 주식회사 | Coolant pump and cooling system provided with the same for vehicle |
| DE102019122718A1 (en) * | 2019-08-23 | 2021-02-25 | Nidec Gpm Gmbh | Piston rod seal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19901123A1 (en) * | 1999-01-14 | 2000-07-20 | Bosch Gmbh Robert | Controllable radial pump, especially for supplying coolant for car has adjuster connected with sleeve which can be slid over pump blades in axial direction |
| DE102005062200B3 (en) * | 2005-12-23 | 2007-02-22 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Adjustable coolant pump for internal combustion engine has annular valve pusher fitted to several piston rods movable in pump housing |
| CN101008424A (en) * | 2006-01-26 | 2007-08-01 | 卢克摩擦片和离合器两合公司 | Distribution device of cooling medium |
| CN101578468A (en) * | 2006-11-13 | 2009-11-11 | 罗伯特·博世有限公司 | Valve for controlling volumetric flows |
| DE102008046424A1 (en) * | 2008-09-09 | 2010-03-11 | Schaeffler Kg | Adjustable coolant pump |
-
2011
- 2011-09-30 DE DE102011083805A patent/DE102011083805A1/en not_active Withdrawn
-
2012
- 2012-03-15 EP EP12159561A patent/EP2574793A2/en not_active Withdrawn
- 2012-03-20 US US13/424,703 patent/US20130081583A1/en not_active Abandoned
- 2012-10-08 CN CN2012103774984A patent/CN103032341A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19901123A1 (en) * | 1999-01-14 | 2000-07-20 | Bosch Gmbh Robert | Controllable radial pump, especially for supplying coolant for car has adjuster connected with sleeve which can be slid over pump blades in axial direction |
| DE102005062200B3 (en) * | 2005-12-23 | 2007-02-22 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Adjustable coolant pump for internal combustion engine has annular valve pusher fitted to several piston rods movable in pump housing |
| CN101008424A (en) * | 2006-01-26 | 2007-08-01 | 卢克摩擦片和离合器两合公司 | Distribution device of cooling medium |
| CN101578468A (en) * | 2006-11-13 | 2009-11-11 | 罗伯特·博世有限公司 | Valve for controlling volumetric flows |
| DE102008046424A1 (en) * | 2008-09-09 | 2010-03-11 | Schaeffler Kg | Adjustable coolant pump |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105814316A (en) * | 2013-10-30 | 2016-07-27 | 皮尔伯格有限责任公司 | Coolant pump with hydraulically adjustable valve slide, with integrated secondary pump and electromagnetic valve for generating and controlling regulating pressure |
| CN104819172A (en) * | 2014-02-03 | 2015-08-05 | 舍弗勒技术股份两合公司 | Dirt trap as a functional module in the impeller of a coolant pump |
| US10337393B2 (en) | 2014-02-03 | 2019-07-02 | Schaeffler Technologies AG & Co. KG | Dirt trap as a functional module in the impeller of a coolant pump |
| CN104819172B (en) * | 2014-02-03 | 2019-09-13 | 舍弗勒技术股份两合公司 | Contaminants collector as the functional module in the impeller of coolant pump |
| CN104564302A (en) * | 2015-01-29 | 2015-04-29 | 浙江吉利控股集团有限公司 | Automobile engine |
| CN108119391A (en) * | 2016-11-30 | 2018-06-05 | 长城汽车股份有限公司 | Water pump and vehicle |
| CN108019356A (en) * | 2017-12-28 | 2018-05-11 | 湖南泵阀制造有限公司 | It is a kind of that there is the Multifunction centrifugal pump and pipe-line system for adjusting stream and break-in facility |
| CN113921878A (en) * | 2020-07-07 | 2022-01-11 | 本田技研工业株式会社 | Method for manufacturing fuel cell stack |
| CN113921878B (en) * | 2020-07-07 | 2024-04-05 | 本田技研工业株式会社 | Method for manufacturing fuel cell stack |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2574793A2 (en) | 2013-04-03 |
| US20130081583A1 (en) | 2013-04-04 |
| DE102011083805A1 (en) | 2013-04-04 |
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