EP2486282A2 - Kühlmittelpumpe - Google Patents
KühlmittelpumpeInfo
- Publication number
- EP2486282A2 EP2486282A2 EP10779672A EP10779672A EP2486282A2 EP 2486282 A2 EP2486282 A2 EP 2486282A2 EP 10779672 A EP10779672 A EP 10779672A EP 10779672 A EP10779672 A EP 10779672A EP 2486282 A2 EP2486282 A2 EP 2486282A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- impeller
- valve
- shaft
- rear wall
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002826 coolant Substances 0.000 title claims abstract description 60
- 238000002485 combustion reaction Methods 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 229910052742 iron Inorganic materials 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000000696 magnetic material Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 230000007257 malfunction Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2211—More than one set of flow passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/60—Control system actuates means
- F05D2270/64—Hydraulic actuators
Definitions
- the invention relates to a driven via a pulley coolant pump for internal combustion engines of larger vehicles, such as trucks, according to the preamble of claim 1.
- the impeller of the coolant pump is generally coupled directly to the crankshaft of the internal combustion engine.
- DE 101 58 732 A1 describes a drive member for the
- Impeller of a coolant pump for transmitting the drive torque from a via a pulley driven directly from the crankshaft
- a 2-stage impeller in which one of the two stages of the impeller can be completely closed by means of a pneumatically actuated valve spool, so that by the Zu- or switching off the second stage of the impeller two operating states, ie on the one hand, the operating state of the full load and on the other hand, the operating state of the partial load can be realized.
- controllable coolant pumps are equipped with over the entire outlet width of the impeller movable valve slides and are characterized by a high reliability and reliability and ensure active control of the coolant flow, so that on the one hand a gradual optimum heating of the engine is guaranteed, and at the same time after the engine warming the engine temperature can be influenced in continuous operation so that the entire operating range of the engine both the pollutant emission as well as the friction losses and fuel consumption can be significantly reduced.
- This arrangement causes the stroke of the valve spool can be moved defined by pulse width modulation of the voltage applied to the solenoid coil, the valve spool in an end position releases the inflow from the impeller into the pump coil, and in the other end position of the valve spool the inflow from the impeller in the pump spiral blocked.
- a major disadvantage of this design with solenoid-operated valve spool is, inter alia, in the required for safe operation of the valve spool large magnetic space and the resulting costs and limitations in terms of pump size when using such actuation of the valve spool, for example in conjunction with internal combustion engines of larger vehicles, such as trucks.
- the invention is therefore based on the object to develop a coolant pump for internal combustion engines of larger vehicles, such as trucks, with a valve spool, which avoids the aforementioned disadvantages of a hydraulic or pneumatic actuation, compared to an electromagnetically actuated valve spool requires a significantly reduced space with minimized weight, is inexpensive to produce, also always robust, reliable and trouble-free under all operating conditions, while having a "fail-safe" function while ensuring a high overall efficiency.
- the sectional view shows the coolant pump according to the invention in the side view in section, wherein in the upper part of the sectional view of the operating state of the "full load” and in the lower part of the sectional view of the operating state of the "partial load” is shown.
- the pump housing 1, the shaft 7, the impeller 8, the valve spool 14 and the valve sleeve 20 are made of a non-magnetic material.
- an anchor sleeve 26 provided with flow-through bores 25 is provided in the valve sleeve 20 on the inner jacket of the inflow guide cylinder 22 longitudinally slidably mounted so that only between the anchor sleeve 26 and the outer surface of the shaft 7 an inflow space 27 remains, wherein in the front end position of the anchor sleeve 26, ie when abutment of the anchor sleeve 26 on the anchor sleeve stop 24 arranged in the anchor sleeve 26 flow holes 25 in the Passage holes 23 of the valve sleeve 20 open.
- valve spool 14 along the outer shell of the valve sleeve 20 in the axial direction of the shaft 7 from a rear end position the system of the rear wall 15 of the valve spool 14 at a arranged on the valve sleeve 20 end position limit 32, by the working pressure in the working chamber 41 bis can be moved to a front end position against the spring force of the compression spring 17, in which the end face of the outer cylinder 16 of the valve slide 14 rests against the sealing collar 13 of the cutting disc 12, wherein on the rear wall 15 of the valve spool 14 in the region to the adjacent outer shell of the valve sleeve 20, a sealing ring 33 and on the outer circumference of the bottom 9 on the impeller 8 in the region of the adjacent outer cylinder 16 of the valve spool 14 sealingly an annular piston 34 is arranged.
- an iron backplate 35 with a centrally arranged inner bore 36 is arranged on the inner rear wall of the pump housing 1, directly adjacent to the iron yoke housing 2 of the magnet coil 3, through which the armature sleeve 26 protrudes even in its front end position.
- This arrangement allows the defined displacement of the anchor sleeve 26 by means of current flow through the magnetic coil 3rd
- the arrangement according to the invention has the effect that the armature sleeve 26 can already be pulled back with a very small magnetic force, so that the magnetic installation space required for moving the armature sleeve 26 is also substantially lower in the present arrangement than in the magnetic installation space used in the conventional construction Solutions for moving the valve spool would be required.
- the rotating rear wall 15 of the valve spool 14 acts as a disk of a disk pump and acts on the located in the region of the rear wall 15 of the valve spool 14 cooling medium as a conveying element.
- valve spool 14 Since the integral of the pressure on the rear wall 15 of the valve spool 14 on the side of the working space 41 is thereby lower than on the side of the housing chamber 42 (in which coolant can always flow) moves (of course with appropriately sized compression spring 17), the valve spool 14 (there no cooling medium can flow into the working space 41) now in its front end position, ie until the free end face of the outer cylinder 16 rests against the sealing collar 13 of the cutting disk 12 and completely closes one step of the two stages of the 2-stage impeller.
- the housing chamber 42 i. In front of the slide, a negative pressure and pulls it into its rear end position wherein the flowing coolant at the same time the shaft seal 4 cools.
- the compression spring 17 presses the valve spool 14 in the rear end position, so that the outer cylinder 16 of the valve spool 14 is moved back to the bottom 9 of the impeller 8 and thus releases the entire outflow of the impeller 8 for the operating state "full load”.
- a filter plate 38 is arranged, which retains the entrained by the coolant solid particles.
- the stroke of the anchor sleeve 26 in the displacement, as well as in the opening time can be steplessly controlled so that, depending on the respective coolant temperature by the partial closing of the passage bore 23 in the valve sleeve 20 by means of the anchor sleeve 26, the above-described supply and Ausströmdung in the working space 41 can be superimposed so that the arranged between the bottom 9 and the blade 12 discharge area of the impeller 8 is temporarily only partially closed by the outer cylinder 16 of the valve spool 14 so that by means of the present inventive arrangement the flow rate, the flow rate, can be controlled continuously depending on the current needs so that always a very good control of the coolant temperature is guaranteed.
- an angular sleeve 43 is arranged in the working space 41 on the rear wall 15 of the valve slide 14 in the region of the valve sleeve 20, and between this angular sleeve 43 and the rear wall 15 of the sealing ring 33 is attached, wherein at the same time the pressure spring 17th is applied.
- This arrangement ensures ease of manufacture and assembly as well as a secure and reliable sealing of the rear wall 15 of the valve spool 14 in the region of the valve sleeve 20 in continuous operation.
- a further advantage is that on the outer circumference of the bottom 9 of the impeller 8, an angle ring 44 is arranged with driving ridges 30, wherein between the bottom 9 of the impeller 8 and the angle ring 44 of the annular piston 34 is arranged.
- This arrangement in turn, in addition to a simple manufacture and installation at the same time ensures a secure and reliable sealing of the bottom 9 of the impeller 8 relative to the Outer cylinder 16 of the valve spool in continuous operation, and a simple arrangement of the driving webs 30 on the bottom 9 of the impeller 8 and a safe and reliable entrainment of the valve spool 14th
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009048349A DE102009048349B3 (de) | 2009-10-06 | 2009-10-06 | Kühlmittelpumpe |
PCT/DE2010/001096 WO2011041998A2 (de) | 2009-10-06 | 2010-09-16 | Kühlmittelpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2486282A2 true EP2486282A2 (de) | 2012-08-15 |
EP2486282B1 EP2486282B1 (de) | 2016-08-24 |
Family
ID=42979364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10779672.4A Not-in-force EP2486282B1 (de) | 2009-10-06 | 2010-09-16 | Kühlmittelpumpe |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2486282B1 (de) |
DE (1) | DE102009048349B3 (de) |
WO (1) | WO2011041998A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014201880B3 (de) | 2014-02-03 | 2014-12-18 | Schaeffler Technologies Gmbh & Co. Kg | Schmutzfänger als Funktionsmodul im Flügelrad einer Kühlmittelpumpe |
DE102015119089B4 (de) * | 2015-11-06 | 2019-03-21 | Pierburg Gmbh | Kühlmittelpumpe für eine Verbrennungskraftmaschine |
CN106996381B (zh) * | 2017-04-17 | 2019-11-29 | 浙江工业大学 | 一种吸顶电风扇 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2189379C (en) * | 1995-11-07 | 2002-01-01 | Thomas W. Ramsay | Pump impeller with adjustable blades |
DE10158732B4 (de) * | 2001-11-30 | 2008-11-27 | Linnig Trucktec Gmbh | Antriebsorgan für eine Wasserpumpe des Kühlwasserkreislaufes eines Verbrennungsmotors sowie Reibschaltkupplung |
US6644933B2 (en) * | 2002-01-02 | 2003-11-11 | Borgwarner, Inc. | Water pump with electronically controlled viscous coupling drive |
DE102005004315B4 (de) * | 2005-01-31 | 2007-04-26 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Regelbare Kühlmittelpumpe |
DE102005062200B3 (de) * | 2005-12-23 | 2007-02-22 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Regelbare Kühlmittelpumpe |
DE102007019263B3 (de) * | 2007-04-24 | 2008-06-19 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Kühlmittelpumpe |
DE102007042866A1 (de) * | 2007-09-08 | 2009-03-12 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Regelbare Kühlmittelpumpe |
-
2009
- 2009-10-06 DE DE102009048349A patent/DE102009048349B3/de not_active Expired - Fee Related
-
2010
- 2010-09-16 WO PCT/DE2010/001096 patent/WO2011041998A2/de active Application Filing
- 2010-09-16 EP EP10779672.4A patent/EP2486282B1/de not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2011041998A2 * |
Also Published As
Publication number | Publication date |
---|---|
EP2486282B1 (de) | 2016-08-24 |
WO2011041998A3 (de) | 2011-06-03 |
DE102009048349B3 (de) | 2010-11-18 |
WO2011041998A2 (de) | 2011-04-14 |
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