EP3017196A1 - Regelbare kühlmittelpumpe - Google Patents
Regelbare kühlmittelpumpeInfo
- Publication number
- EP3017196A1 EP3017196A1 EP14755323.4A EP14755323A EP3017196A1 EP 3017196 A1 EP3017196 A1 EP 3017196A1 EP 14755323 A EP14755323 A EP 14755323A EP 3017196 A1 EP3017196 A1 EP 3017196A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- piston
- pump housing
- impeller
- piston rod
- 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
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
- 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 controllable coolant pump, in particular for use in large internal combustion engines, e.g. Truck engines.
- annularly formed valve spool with a variably covering the outflow of the impeller Outer cylinder arranged, which can be linearly displaced by means of a pneumatically or hydraulically actuated actuator (which hydraulically acts on a plurality of the valve spool rigidly arranged, guided in the pump housing piston rods).
- a pneumatically or hydraulically actuated actuator which hydraulically acts on a plurality of the valve spool rigidly arranged, guided in the pump housing piston rods.
- the working pressure for actuating the central, around the pump shaft arranged around space-consuming working piston is generated in this solution by an axial piston pump arranged in the pump housing with a swash plate disposed on the circumference of the impeller and provided with a Saugnut, sliding running shoe, and by means of a arranged on the pump housing control valve regulated as needed.
- This variable coolant pump is designed for use in passenger car engines, and is not suitable for use in higher pump capacity coolant pumps, such as for truck engine coolant pumps, with large vanes, much higher hydraulic outputs, high required restoring forces, and at the same time high dynamics in the adjustment, and a required in truck use, to the 5-fold higher life compared to the designed for car engines coolant pumps.
- the coolant pump described in WO 2009/143832 A2 is suitable for use in larger engines, such as e.g. for truck engines u.a. also not suitable because even with this design lacked a reliable, the exact position of the spool reliably over long periods of use reliably determining sensor.
- the permanent magnets of the Hall sensors which are usually arranged directly on the control slide, have the disadvantage that the metal particles (chips, abrasion, etc.) flushed by the coolant adhere to these permanent magnets and "clump" over a longer period of use of the sensor permanent magnets, so that they clump together the time is inaccurate and later becomes completely useless.
- DE 10 201 1 1 13 040 B3 discloses a controllable coolant pump, which has a sensor which detects the path of a valve spool for control pressure control.
- the invention is based on the object, via a drive wheel, for example, a pulley, driven, continuously variable coolant pump (with control slide) to develop for use in truck engines, which does not have all the aforementioned disadvantages of the prior art, thereby ensures optimal heating of the engine by "zero leakage" and even after the heating of the engine, the engine temperature in continuous operation continuously, while highly dynamic, and so very reliable over very long periods of use can affect that in the entire working range of the engine both the Pollutant emission as well as the friction losses and fuel consumption are significantly reduced, these used in truck engines coolant pump, on the one hand to ensure a very high dynamics in the adjustment, even under high restoring forces, while maintaining a very low, optimally available in the engine compartment space exploiting construction should also have a very precise, reliable control of the valve spool at a 5 times longer life compared to coolant pumps for passenger car engines, the coolant pump to be developed also still manufacturing and assembly technology simple, and inexpensive to produce , and also easy and inexpensive to be integrated into the engine management,
- this object is achieved by a driven via a pulley controllable coolant pump for internal combustion engines according to the features of the independent claim of the invention.
- Figure 1 the controllable coolant pump according to the invention in a first
- FIG 2 the controllable coolant pump according to the invention in section in A-A according to Figure 1, but with drive wheel 3 and pump cover 38;
- FIG. 3 the controllable coolant pump according to the invention in one
- controllable coolant pump with a pump housing 1, in Figure 2, mounted in the pump housing 1 in a pump bearing 2, driven by a drive wheel 3 pump shaft 4, with one on the free, flow-side end this pump shaft 4 rotatably mounted impeller 5, one between the pump bearing 2 and the impeller 5 in the pump housing 1 on the shaft arranged shaft seal 6, a pressure-operated, arranged in the pump interior 7 control slide 8 with a rear wall 10 and the outflow of the impeller 5 variably overlapping outer cylinder 9 and a plurality of arranged on the annular rear wall 10 of the control slide 8 guide rods, and in the pump housing 1 parallel to the pump shaft. 4 uniformly over the circumference of the control slide 8, associated with the control slide 8 arranged guide rods, distributed rod guide holes in which the arranged on the control slide 8 guide rods are mounted axially displaceable.
- controllable coolant pump according to the invention is characterized in that on the rear wall 10 of the control slide 8 on an annular circle, offset by 120 ° to each other as guide rods piston rods 1 1 are arranged, and these serving as rod guide holes piston rod guide holes 12th are axially slidably mounted, and these are characterized in that all piston rod guide holes 12, the drive wheel side in the pump housing 1 adjacent, in each case a return spring 27 receiving hydraulic chamber 13 is arranged.
- scraper receiving bores 20 are arranged in the pump housing, in which scrapers 21 adjoining the piston rods 1 1 are arranged, wherein moreover Hydraulic chamber side in the pump housing 1 in the piston rod guide holes 12 piston seal receiving bores 22 are arranged, in which there are arranged on the piston rods 1 1 adjacent piston seals 23.
- the scrapers 21 arranged on the piston rods 1 1 ensure that the areas of the piston rods 1 1 contaminated in the pump interior 7 by the coolant contaminated with "dirty load" are cleaned before their re-entry into the piston rod guide holes 12 by casting sand, abrasion, chips, etc. entrained in the coolant. so that the piston rod guide holes 12, even after prolonged use and longer downtime optimal sliding of the piston rods 1 1, and thus a safe process of the control slide 8, ensure.
- annular groove 14 is arranged, which connects all the hydraulic chambers 13 with each other.
- a spring plate system 24 is provided with a provided with a piston rod passage bore spring contact plate 25, which is associated with the free, drive wheel end of the piston rod 1 1 a spring clamping plate 26 is arranged securely in position, wherein between the spring contact plate 25 and the spring tensioner plate 26, the return spring 27 is arranged in the hydraulic chamber 13.
- This inventive arrangement of the return spring 27 causes after reducing the working pressure in the hydraulic chambers 13, the Piston rods 1 1 and thus also arranged on these control slide 8 back toward the starting position, ie in the open position of the control slide 8, moves.
- the control slide Due to the voltage applied in each case in the hydraulic chambers working pressure, and thus acting on each of the piston rods 1 1 axial force, the control slide remains always in the position / position in which a balance of forces between the spring force of the return spring 27 and the, from the current working pressure in the Hydraulic spaces 13 resulting, acting on the piston rods axial force sets.
- This swash plate 19 which is rigidly arranged on the impeller 5 on the pump housing side, has a planar "riser region", which is opposite a “sink region” in which a suction groove is introduced, wherein in each case planar transition regions are arranged between the "riser region” and the "sink region".
- the stroke of the axial piston 18 per revolution is in each case about one millimeter, so that the sum of the delivery of all three axially "in series" axial piston pumps
- the suction groove incorporated in the swash plate 19, in conjunction with the sliding shoe 17, according to the invention, at the same time also serves as a gap filter, so that during the inflow process, filtering of the coolant, i. Cleaning of the coolant in particular of entrained metallic particles (such as chips or abrasion) as well as other components (such as grains of sand) takes place.
- the arrangement according to the invention is also resistant to particles entrained by the coolant (such as chips or grains of sand) and ensures high reliability with a long service life.
- a housing connection 30 connected to one of the pump channels 15 via a control channel 28 and the pump interior 7 via a return channel 29 is arranged on the pump housing 1, in which a control valve arranged between the control channel 28 and the return channel 29 31 is located.
- This control valve 13 is normally open.
- the working piston of the Axalkolbenpumpen 18 promote in "open" control valve 31, the purified refrigerant pressure from the pump channel 15 via the control channel 28 of the control valve 31 in the return channel 29 and via this back into the pump interior. 7
- control slide 8 remains at normally open control valve 31 in its rear end position while ensuring the fail-safe function.
- the pressed-in cooling liquid causes a defined (via the control valve 31) adjustable pressurization of the piston rods 1 1 in the piston rod guide holes 12, which in interaction with the return springs 27 of the control slide 8 can be moved exactly translationally in the pump interior 7.
- a sensor housing connection 32 is arranged on the pump housing 1 adjacent to one of the hydraulic chambers 13, in which a displacement measuring sensor housing 34 which also contains a magnetic coil 33 is integrated, a magnetic working chamber 35 being adjacent to the magnetic coil 33 in the hydraulic chamber 13 is arranged, in which a rigid, in the region of the drive wheel-side free end of the piston rod 1 1 arranged permanent magnet 36 is moved linearly with the piston rod, and with the magnetic coil 33 as Wegmesssensor in operative connection.
- the permanent magnet 36 according to the invention is surrounded exclusively by purified coolant, no permanent magnets 36 can also be used adhering to the coolant mitgePollte metal particles (such as chips, abrasion, etc.), so that in the inventive arrangement, even over very long periods of use, the permanent magnets no longer "clump" so that over the entire service life even with large engines with high pollution load in Coolant a reliable and accurate determination of the respective position of the control slide 8 is guaranteed.
- a plurality of seals 37 is arranged / are at / which a pump cover 38 is applied, which is clamped by means disposed in the pump housing 1 mounting screws 39 against the pump housing 1 liquid-tight.
- the arrangement according to the invention ensures a simple, cost-effective, easy to manufacture and install, safe and reliable sealing all arranged in the pump housing 1 pump channels 15, the annular groove 14, as well as all arranged in the pump housing 1 hydraulic chambers 13th
- swash plate 19 is designed as bending-stabilized metal disc. As a result, a high stability of the swash plates 19 is ensured, so that even with an elastic deformation of the impeller under extreme operating conditions always a safe and reliable operation of the axial piston pump 18 is guaranteed.
- Saugnut is incorporated to 5.00 mm deep in the swash plate 19, and also between the swash plate 19 and the shoe 17 a Saugnut überframeder, provided with about 4000 laser holes in the suction groove centrifugal separator, a filter disk , is arranged.
- This centrifugal separator causes first a filtering of the coolant flowing into the suction groove, on the one hand as “centrifugal separator", since the centrifugal force acting on undesired foreign bodies entrained by the cooling medium (such as chips, grains of sand, or the like) the peripheral speed of the impeller 5 (with the centrifugal separator rotates) in the area of the laser bores is substantially larger than the "suction force" acting on the foreign bodies from the inflow velocity into the laser bores.
- the cooling medium such as chips, grains of sand, or the like
- the centrifugal separator acts as a "baffle separator" since all foreign objects that do not hit the laser bore exactly bounce off the "base material of the centrifugal separator" arranged between the laser bores and are then additionally rejected by the centrifugal force effect.
- these serve as confuser and cause inter alia a minimization of the pressure loss in the suction phase.
- This filter disk provided with laser bores increases the filter effect of the above-described split filter even under very extreme operating conditions and, in the case of coolant loaded with extreme contaminant load, again increases the reliability of the controllable coolant pump according to the invention.
- piston sealing ring 40 is arranged on the impeller side in the wall of the pump interior 7 on the outer cylinder 9 of the control slide 8 fitting piston sealing ring 40 is arranged.
- This piston seal 40 avoids faulty or leakage flows into the pump interior 7, and thus increases the overall efficiency of the controllable coolant pump according to the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310011209 DE102013011209B3 (de) | 2013-07-04 | 2013-07-04 | Regelbare Kühlmittelpumpe |
PCT/DE2014/000327 WO2015000456A1 (de) | 2013-07-04 | 2014-06-27 | Regelbare kühlmittelpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3017196A1 true EP3017196A1 (de) | 2016-05-11 |
EP3017196B1 EP3017196B1 (de) | 2017-09-20 |
Family
ID=49880095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14755323.4A Not-in-force EP3017196B1 (de) | 2013-07-04 | 2014-06-27 | Regelbare kühlmittelpumpe |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3017196B1 (de) |
DE (1) | DE102013011209B3 (de) |
WO (1) | WO2015000456A1 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014009367B3 (de) * | 2014-06-21 | 2015-03-05 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Regelbare Kühlmittelpumpe |
KR101912802B1 (ko) * | 2014-07-21 | 2018-12-28 | 니덱 게페엠 게엠베하 | 통합 폐루프 제어가 가능한 냉각수 펌프 |
DE102014110231B3 (de) * | 2014-07-21 | 2015-09-10 | Nidec Gpm Gmbh | Kühlmittelpumpe mit integrierter Regelung |
DE102015109966B3 (de) * | 2015-06-22 | 2016-06-16 | Nidec Gpm Gmbh | Kühlmittelpumpe mit integrierter Regelung |
CN107076167B (zh) * | 2014-09-22 | 2019-04-05 | 萨乐锐伊塔洛工业有限公司 | 阀组、用于车辆的冷却回路的泵以及发动机缸体 |
DE102015000805B3 (de) | 2015-01-22 | 2016-01-21 | Nidec Gpm Gmbh | Regelbare Kühlmittelpumpe |
DE102015119098B4 (de) | 2015-11-06 | 2019-03-21 | Pierburg Gmbh | Regelanordnung für eine mechanisch regelbare Kühlmittelpumpe einer Verbrennungskraftmaschine |
DE102015119097B4 (de) | 2015-11-06 | 2019-03-21 | Pierburg Gmbh | Kühlmittelpumpe für eine Verbrennungskraftmaschine |
DE102015119095B4 (de) | 2015-11-06 | 2019-03-21 | Pierburg Gmbh | Kühlmittelpumpe für eine Verbrennungskraftmaschine |
CN105508258B (zh) * | 2016-02-05 | 2017-11-03 | 黄文佳 | 一种离心水泵 |
DE102016004954A1 (de) | 2016-04-23 | 2017-10-26 | Nidec Gpm Gmbh | Verfahren zur Herstellung einer Spritzgussform für Bauteile aus spritzgießfähigen Materialien der Hochleistungskeramik, wie Siliciumnitrid |
CN107975473B (zh) * | 2016-08-06 | 2019-08-02 | 广州市美村橡胶科技有限公司 | 一种气泵的橡胶转子 |
DE102017120191B3 (de) | 2017-09-01 | 2018-12-06 | Nidec Gpm Gmbh | Regelbare Kühlmittelpumpe für Haupt- und Nebenförderkreislauf |
DE102018114705B3 (de) | 2018-06-19 | 2019-06-27 | Nidec Gpm Gmbh | Regelbare Kühlmittelpumpe mit Filterscheibe, Filterscheibe und Herstellung derselben |
DE102019122717A1 (de) * | 2019-08-23 | 2021-02-25 | Nidec Gpm Gmbh | Regelbare Kühlmittelpumpe mit Kolbenstangenführung |
CN114922821B (zh) * | 2022-06-09 | 2024-01-05 | 浙江理工大学 | 一种防卡堵屏蔽泵及其控制方法 |
CN115090881B (zh) * | 2022-07-11 | 2023-09-15 | 陕西华夏粉末冶金有限责任公司 | 一种粉末冶金注射成型装置 |
CN118148951B (zh) * | 2024-05-10 | 2024-07-05 | 四川三台力达泵业有限公司 | 一种具有自密封组件的离心泵及工作方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005062200B3 (de) * | 2005-12-23 | 2007-02-22 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Regelbare Kühlmittelpumpe |
DE102007022189A1 (de) * | 2007-05-11 | 2008-11-27 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Regelbare Kühlmittelpumpe |
DE102007042866A1 (de) * | 2007-09-08 | 2009-03-12 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Regelbare Kühlmittelpumpe |
DE102008026218B4 (de) * | 2008-05-30 | 2012-04-19 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Regelbare Kühlmittelpumpe |
DE102012207387A1 (de) * | 2011-07-27 | 2013-01-31 | Mahle International Gmbh | Kühleinrichtung |
DE102011113040B3 (de) * | 2011-09-09 | 2012-04-26 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | "Regelbare Kühlmittelpumpe" |
-
2013
- 2013-07-04 DE DE201310011209 patent/DE102013011209B3/de not_active Expired - Fee Related
-
2014
- 2014-06-27 EP EP14755323.4A patent/EP3017196B1/de not_active Not-in-force
- 2014-06-27 WO PCT/DE2014/000327 patent/WO2015000456A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2015000456A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2015000456A1 (de) | 2015-01-08 |
EP3017196B1 (de) | 2017-09-20 |
DE102013011209B3 (de) | 2014-01-23 |
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