US20130011250A1 - Mechanical coolant pump - Google Patents
Mechanical coolant pump Download PDFInfo
- Publication number
- US20130011250A1 US20130011250A1 US13/579,037 US201013579037A US2013011250A1 US 20130011250 A1 US20130011250 A1 US 20130011250A1 US 201013579037 A US201013579037 A US 201013579037A US 2013011250 A1 US2013011250 A1 US 2013011250A1
- Authority
- US
- United States
- Prior art keywords
- flap
- volute
- pump
- coolant pump
- mechanical coolant
- 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.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
-
- 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
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
- F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
Definitions
- the present invention relates to a mechanical coolant pump for an internal combustion engine.
- a mechanical coolant pump is a coolant pump which is driven by the combustion engine, for example, by using a driving belt driving a driving wheel of the pump.
- mechanical coolant pumps are used which are provided with an outlet valve for controlling the coolant circulation flow. As long as the combustion engine is cold, the outlet valve is closed so that the circulation of the lubricant is minimized, with the result that the combustion engine warming-up phase is decreased.
- outlet valves are used in the form of a pivoting flap, whereby the pivoting flap is positioned in the pump outlet channel.
- the pivoting flap is controlled to rotate into an open or closed position, whereby the positions determine the coolant circulation flow rate.
- the arrangement of such a pivoting flap inside the coolant outlet channel restrains the coolant flow even in the open position of the flap and induces a useless flow resistance.
- turbulence is generated in the coolant, in the volute and in the outlet channel, so that the pump wheel is permanently exposed to a significant resistance caused by the turbulence in the coolant. This resistance causes a useless energy consumption of the coolant pump in the idle state of the coolant pump.
- An aspect of the present invention is to provide a mechanical coolant pump with a decreased fluidic resistance.
- the present invention provides a mechanical coolant pump for an internal combustion engine which includes a main pump body comprising a volute housing and an outlet channel.
- a pump wheel is arranged in the volute housing. The pump wheel is configured to pump a coolant into the outlet channel.
- a volute tongue wall comprising a flap is configured to be axially pivotable. The volute tongue wall is configured to separate the outlet channel from a volute.
- An outlet valve defined by the flap of the volute tongue wall in an open position forms an end of the volute tongue wall. The outlet valve is configured to control a coolant outlet flow of the mechanical coolant pump.
- a pivot axis of the flap is arranged adjacent to the volute housing.
- FIG. 1 shows a perspective view of a mechanical coolant pump with a valve flap in the open position
- FIG. 2 shows a perspective view of the mechanical coolant pump with the valve flap in the closed position.
- the mechanical coolant pump for an internal combustion engine comprises a main pump body which comprises a volute housing.
- a pump wheel is arranged inside the volute housing, whereby the pump wheel pumps the coolant outwardly into the volute and from the volute tangentially into the outlet channel.
- the coolant outlet flow of the pump is controlled by an outlet valve.
- the outlet channel is separated by a volute tongue wall from the volute, so that the volute tongue wall separates the outlet channel from the volute.
- the outlet valve of the mechanical coolant pump is defined by an axially pivotable flap being at least a part of the volute tongue wall in the open position of the flap.
- the flap forms the end of the volute tongue wall in the circumferential direction.
- the pivot axis of the pivotable flap is orientated axially and parallel to the rotating axis of the pump wheel.
- the pivot axis is arranged adjacent to the volute housing over the entire length of the flap pivot axis.
- the arrangement of the axially pivotable flap adjacent to the volute housing and at the end of the volute tongue wall avoids the flow of any coolant into the outlet channel when the flap is in the closed position because the closed flap directly closes the inlet of the outlet channel and is not arranged in the course of the outlet channel anymore.
- the fluidic resistance for the pump wheel caused by turbulence in the coolant is significantly reduced in the closed flap position.
- a flow of the coolant into the outlet channel and back is stopped effectively so that a coolant ring rotates in the volute.
- the coolant ring flowing in the volute circulates in a constant and mainly undisturbed manner.
- the energy consumption of the pump decreases significantly when the outlet valve is closed. Energy consumption during the cold start phase of the engine while the outlet valve is closed can in particular be minimized effectively.
- the pump is also provided with a reduced flow resistance in the open position because the flap does not provide a useless flow resistance for the coolant, in contrast to a flap, which is positioned in the middle of the outlet channel and which restrains the coolant flow in the outlet channel.
- the main pump body can, for example, be provided with at least one stopping element which stops the flap in the defined open position and/or defined closed position.
- a stopping element holds the flap in the defined open and/or defined closed position so that the actuator which opens and closes the flap does not have to apply holding forces to the flap in the open or closed position. This is an additional means to decrease the energy consumption of the actuator moving the flap.
- the stopping element can, for example, be a stopping nose arranged in the outlet channel wall, and the flap can be stopped by the stopping nose in the closed position.
- a stopping nose is a simple and cost-efficient means to realize a stopping element which supports the flap in its closed position.
- the flap can, for example, be arched and the arched flap can extend the volute in the open position of the flap.
- the proximal side of the flap can, for example, be arched circular with an inner radius close to the outer radius of the pump wheel.
- the arched flap extends the volute in the open position so that the coolant flow in the volute and into the outlet channel is undisturbed.
- the undisturbed coolant flow is mainly free of turbulence so that the energy consumption of the pump decreases in the open position of the flap.
- the stopping element can, for example, be a step in the volute housing and the arched flap can be stopped by the stopping element when the flap opens and arrives at the open position.
- the step which can be realized in the outer wall of the volute housing or in the side wall of the outlet channel, is a simple and cost-efficient means to realize a stopping element which stops and supports the flap in an open position.
- the flap can, for example, be driven by an actuator.
- the flap can, for example, be driven by a pneumatic actuator.
- the flap can also be driven by other actuators such as an electrical, a vacuum or a thermostatic actuator.
- the pneumatic energy can be tapped at different positions at the combustion engine so that the use of a pneumatic actuator is simple and cost-efficient.
- the actuator can, for example, position the flap in at least one intermediate position between the open position and the closed position. This makes it possible to adapt the coolant outlet flow more accurately to the coolant needs of the engine. Especially during a cold start phase of the engine, a more precise control of the coolant flow rate is helpful to shorten the warming-up phase of the engine.
- the volute housing can, for example, be an integrated part of the main pump body. This construction allows faster and more cost-efficient production.
- one part of the volute tongue wall is a part of the pivotable flap and the other part of the volute tongue wall is a part of the volute housing.
- the pivotable flap should be constructed as small as possible. The bigger the flap is, the higher is the total force of the flowing coolant which causes a torque to the flap. The pivotable flap should, however, be large enough to close the outlet channel in the closing position.
- FIG. 1 shows a mechanical coolant pump 10 for an internal combustion engine.
- the mechanical coolant pump 10 comprises a main pump body 12 , whereby the main pump body 12 is mounted directly to the engine block by a flange 40 or can have a separate cover body which is not shown.
- the main pump body 12 is provided with a volute housing 14 which is an integrated part of the main pump body 12 , whereby the volute housing 14 is substantially forming the volute 34 .
- the volute housing 14 supports a rotatable pump wheel 16 which sucks the coolant axially and pumps the coolant radially outwardly into a volute channel 35 of the volute 34 .
- the volute channel 35 is a ringlike channel which surrounds the pump wheel 16 circumferentially.
- the pump wheel 16 is directly driven by the combustion engine by using a driving belt (not shown) which drives a driving wheel (not shown) of the coolant pump 10 .
- the coolant flows, as a result of centrifugal forces, into the volute 34 , from the volute channel 35 through an outlet valve 20 into a subsequent outlet channel 18 and finally to an outlet opening 38 of the pump 10 .
- the outlet valve 20 is positioned at the end of the volute channel 35 and separates the volute channel 35 from the outlet channel 18 .
- the outlet valve 20 comprises an axially pivotable arched flap 24 .
- the pivot axis 26 is arranged adjacent to the volute housing 14 .
- the flap 24 is at least a part of a volute tongue wall 22 in the open position of the flap 24 and is forming the circumferential end of the volute tongue wall 22 .
- the volute tongue wall 22 comprises a wedge-shaped part 23 which is a part of the volute housing 14 .
- the flap 24 extends the volute 34 in the open flap position ( FIG. 1 ).
- the flap 24 is stopped in the open position by a stopping element 28 which is a step 36 in an outer wall 39 of the volute housing 14 . More precisely, the step 36 is formed by a side wall 37 of the volute channel 35 and the outer wall 39 so that the step fold is orientated tangentially.
- the flap 24 In the closed valve position ( FIG. 2 ), the flap 24 is stopped by a stopping element 27 which is a stopping nose 30 .
- the stopping nose 30 is a groove in an outlet channel wall 32 .
- the stopping groove is positioned opposite and parallel to the pivot axis 26 of the flap 24 so that the flap 24 is closable into the closing position shown in FIG. 2 .
- the coolant rotates in the volute 34 as a coolant ring, and is circulating in a constant and mainly undisturbed manner.
- the flap 24 is driven by an actuator (not shown), which is, for example, a pneumatical, an electrical, a vacuum or a thermostatic actuator.
- the flap 24 can be positioned in at least one intermediate position by the actuator.
- the intermediate position is a defined position between the open and the closed flap position, and allows the control of the coolant outlet flow more accurate and more adapt to the coolant need of the engine.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A mechanical coolant pump for an internal combustion engine includes a main pump body comprising a volute housing and an outlet channel. A pump wheel is arranged in the volute housing. The pump wheel is configured to pump a coolant into the outlet channel. A volute tongue wall comprising a flap is configured to be axially pivotable. The volute tongue wall is configured to separate the outlet channel from a volute. An outlet valve defined by the flap of the volute tongue wall in an open position forms an end of the volute tongue wall. The outlet valve is configured to control a coolant outlet flow of the mechanical coolant pump. A pivot axis of the flap is arranged adjacent to the volute housing.
Description
- This application is a U.S. National Phase application under 35 U.S.C. § 371 of International Application No. PCT/EP2010/051918, filed on Feb. 16, 2010. The International Application was published in English on Aug. 25, 2011 as WO 2011/101019 A1 under PCT Article 21(2).
- The present invention relates to a mechanical coolant pump for an internal combustion engine.
- A mechanical coolant pump is a coolant pump which is driven by the combustion engine, for example, by using a driving belt driving a driving wheel of the pump. As long as the combustion engine is cold, only a minimum coolant flow is needed. Therefore, mechanical coolant pumps are used which are provided with an outlet valve for controlling the coolant circulation flow. As long as the combustion engine is cold, the outlet valve is closed so that the circulation of the lubricant is minimized, with the result that the combustion engine warming-up phase is decreased.
- Usually, outlet valves are used in the form of a pivoting flap, whereby the pivoting flap is positioned in the pump outlet channel. The pivoting flap is controlled to rotate into an open or closed position, whereby the positions determine the coolant circulation flow rate. The arrangement of such a pivoting flap inside the coolant outlet channel restrains the coolant flow even in the open position of the flap and induces a useless flow resistance. Furthermore, when the flap is in the closed position, turbulence is generated in the coolant, in the volute and in the outlet channel, so that the pump wheel is permanently exposed to a significant resistance caused by the turbulence in the coolant. This resistance causes a useless energy consumption of the coolant pump in the idle state of the coolant pump.
- An aspect of the present invention is to provide a mechanical coolant pump with a decreased fluidic resistance.
- In an embodiment, the present invention provides a mechanical coolant pump for an internal combustion engine which includes a main pump body comprising a volute housing and an outlet channel. A pump wheel is arranged in the volute housing. The pump wheel is configured to pump a coolant into the outlet channel. A volute tongue wall comprising a flap is configured to be axially pivotable. The volute tongue wall is configured to separate the outlet channel from a volute. An outlet valve defined by the flap of the volute tongue wall in an open position forms an end of the volute tongue wall. The outlet valve is configured to control a coolant outlet flow of the mechanical coolant pump. A pivot axis of the flap is arranged adjacent to the volute housing.
- The present invention is described in greater detail below on the basis of embodiments and of the drawings in which:
-
FIG. 1 shows a perspective view of a mechanical coolant pump with a valve flap in the open position; and -
FIG. 2 shows a perspective view of the mechanical coolant pump with the valve flap in the closed position. - The mechanical coolant pump for an internal combustion engine according to the present invention comprises a main pump body which comprises a volute housing. A pump wheel is arranged inside the volute housing, whereby the pump wheel pumps the coolant outwardly into the volute and from the volute tangentially into the outlet channel. The coolant outlet flow of the pump is controlled by an outlet valve. The outlet channel is separated by a volute tongue wall from the volute, so that the volute tongue wall separates the outlet channel from the volute.
- The outlet valve of the mechanical coolant pump is defined by an axially pivotable flap being at least a part of the volute tongue wall in the open position of the flap. The flap forms the end of the volute tongue wall in the circumferential direction. The pivot axis of the pivotable flap is orientated axially and parallel to the rotating axis of the pump wheel. The pivot axis is arranged adjacent to the volute housing over the entire length of the flap pivot axis.
- The arrangement of the axially pivotable flap adjacent to the volute housing and at the end of the volute tongue wall avoids the flow of any coolant into the outlet channel when the flap is in the closed position because the closed flap directly closes the inlet of the outlet channel and is not arranged in the course of the outlet channel anymore. As a result, the fluidic resistance for the pump wheel caused by turbulence in the coolant is significantly reduced in the closed flap position. In the closed flap position, a flow of the coolant into the outlet channel and back is stopped effectively so that a coolant ring rotates in the volute. This means that the coolant ring flowing in the volute circulates in a constant and mainly undisturbed manner. As a result, the energy consumption of the pump decreases significantly when the outlet valve is closed. Energy consumption during the cold start phase of the engine while the outlet valve is closed can in particular be minimized effectively.
- The pump is also provided with a reduced flow resistance in the open position because the flap does not provide a useless flow resistance for the coolant, in contrast to a flap, which is positioned in the middle of the outlet channel and which restrains the coolant flow in the outlet channel.
- In an embodiment of the present invention, the main pump body can, for example, be provided with at least one stopping element which stops the flap in the defined open position and/or defined closed position. A stopping element holds the flap in the defined open and/or defined closed position so that the actuator which opens and closes the flap does not have to apply holding forces to the flap in the open or closed position. This is an additional means to decrease the energy consumption of the actuator moving the flap.
- In an embodiment of the present invention, the stopping element can, for example, be a stopping nose arranged in the outlet channel wall, and the flap can be stopped by the stopping nose in the closed position. A stopping nose is a simple and cost-efficient means to realize a stopping element which supports the flap in its closed position.
- In an embodiment of the present invention, the flap can, for example, be arched and the arched flap can extend the volute in the open position of the flap. In an embodiment of the present invention, the proximal side of the flap can, for example, be arched circular with an inner radius close to the outer radius of the pump wheel. The arched flap extends the volute in the open position so that the coolant flow in the volute and into the outlet channel is undisturbed. The undisturbed coolant flow is mainly free of turbulence so that the energy consumption of the pump decreases in the open position of the flap.
- In an embodiment of the present invention, the stopping element can, for example, be a step in the volute housing and the arched flap can be stopped by the stopping element when the flap opens and arrives at the open position. The step, which can be realized in the outer wall of the volute housing or in the side wall of the outlet channel, is a simple and cost-efficient means to realize a stopping element which stops and supports the flap in an open position.
- In an embodiment of the present invention, the flap can, for example, be driven by an actuator. In an embodiment of the present invention, the flap can, for example, be driven by a pneumatic actuator. The flap can also be driven by other actuators such as an electrical, a vacuum or a thermostatic actuator. The pneumatic energy can be tapped at different positions at the combustion engine so that the use of a pneumatic actuator is simple and cost-efficient.
- In an embodiment of the present invention, the actuator can, for example, position the flap in at least one intermediate position between the open position and the closed position. This makes it possible to adapt the coolant outlet flow more accurately to the coolant needs of the engine. Especially during a cold start phase of the engine, a more precise control of the coolant flow rate is helpful to shorten the warming-up phase of the engine.
- In an embodiment of the present invention, the volute housing can, for example, be an integrated part of the main pump body. This construction allows faster and more cost-efficient production.
- In an embodiment of the present invention, one part of the volute tongue wall is a part of the pivotable flap and the other part of the volute tongue wall is a part of the volute housing. The pivotable flap should be constructed as small as possible. The bigger the flap is, the higher is the total force of the flowing coolant which causes a torque to the flap. The pivotable flap should, however, be large enough to close the outlet channel in the closing position.
-
FIG. 1 shows amechanical coolant pump 10 for an internal combustion engine. Themechanical coolant pump 10 comprises amain pump body 12, whereby themain pump body 12 is mounted directly to the engine block by aflange 40 or can have a separate cover body which is not shown. - The
main pump body 12 is provided with avolute housing 14 which is an integrated part of themain pump body 12, whereby thevolute housing 14 is substantially forming thevolute 34. Thevolute housing 14 supports arotatable pump wheel 16 which sucks the coolant axially and pumps the coolant radially outwardly into avolute channel 35 of thevolute 34. Thevolute channel 35 is a ringlike channel which surrounds thepump wheel 16 circumferentially. - The
pump wheel 16 is directly driven by the combustion engine by using a driving belt (not shown) which drives a driving wheel (not shown) of thecoolant pump 10. The coolant flows, as a result of centrifugal forces, into thevolute 34, from thevolute channel 35 through anoutlet valve 20 into asubsequent outlet channel 18 and finally to anoutlet opening 38 of thepump 10. Theoutlet valve 20 is positioned at the end of thevolute channel 35 and separates thevolute channel 35 from theoutlet channel 18. - The
outlet valve 20 comprises an axially pivotablearched flap 24. Thepivot axis 26 is arranged adjacent to thevolute housing 14. Theflap 24 is at least a part of a volute tongue wall 22 in the open position of theflap 24 and is forming the circumferential end of the volute tongue wall 22. The volute tongue wall 22 comprises a wedge-shapedpart 23 which is a part of thevolute housing 14. Theflap 24 extends thevolute 34 in the open flap position (FIG. 1 ). - The
flap 24 is stopped in the open position by a stopping element 28 which is astep 36 in anouter wall 39 of thevolute housing 14. More precisely, thestep 36 is formed by aside wall 37 of thevolute channel 35 and theouter wall 39 so that the step fold is orientated tangentially. - In the closed valve position (
FIG. 2 ), theflap 24 is stopped by a stopping element 27 which is a stopping nose 30. The stopping nose 30 is a groove in anoutlet channel wall 32. The stopping groove is positioned opposite and parallel to thepivot axis 26 of theflap 24 so that theflap 24 is closable into the closing position shown inFIG. 2 . When theflap 24 is in the closing position, the coolant rotates in thevolute 34 as a coolant ring, and is circulating in a constant and mainly undisturbed manner. - The
flap 24 is driven by an actuator (not shown), which is, for example, a pneumatical, an electrical, a vacuum or a thermostatic actuator. Theflap 24 can be positioned in at least one intermediate position by the actuator. The intermediate position is a defined position between the open and the closed flap position, and allows the control of the coolant outlet flow more accurate and more adapt to the coolant need of the engine. - The present invention is not limited to embodiments described herein; reference should be had to the appended claims.
Claims (11)
1-10. (canceled)
11. A mechanical coolant pump for an internal combustion engine, the mechanical coolant pump comprising:
a main pump body comprising a volute housing;
an outlet channel;
a pump wheel arranged in the volute housing, the pump wheel being configured to pump a coolant into the outlet channel;
a volute tongue wall comprising a flap configured to be axially pivotable, the volute tongue wall being configured to separate the outlet channel from a volute, and
an outlet valve defined by the flap of the volute tongue wall in an open position, and forming an end of the volute tongue wall, the outlet valve being configured to control a coolant outlet flow of the mechanical coolant pump,
wherein a pivot axis of the flap is arranged adjacent to the volute housing.
12. The mechanical coolant pump as recited in claim 11 , wherein the main pump body further comprises at least one stopping element, and wherein the at least one stopping element is configured to stop the flap in at least one of the open position and a closed position.
13. The mechanical coolant pump as recited in claim 12 , further comprising an outlet channel wall, wherein the at least one stopping element is a stopping nose arranged in the outlet channel wall, the stopping nose being configured to stop the flap in a closed position.
14. The mechanical coolant pump as recited in claim 12 , wherein the flap is an arched flap, the arched flap being configured to extend the volute in the open position.
15. The mechanical coolant pump as recited in claim 14 , wherein the at least one stopping element is a step arranged in the volute housing, wherein the at least one stopping element is configured to stop the arched flap.
16. The mechanical coolant pump as recited in claim 11 , further comprising an actuator, wherein the flap is configured to be driven by the actuator.
17. The mechanical coolant pump as recited in claim 16 , wherein the actuator is a pneumatical actuator, an electrical actuator, a vacuum actuator or a thermostatic actuator.
18. The mechanical coolant pump as recited in claim 16 , wherein the actuator is configured to position the flap in at least one intermediate position disposed between the open position and a closed position.
19. The mechanical coolant pump as recited in claim 11 , wherein the volute housing is an integrated part of the main pump body.
20. The mechanical coolant pump as recited in claim 11 , wherein the volute tongue wall comprises a first part and a second part, the first part of the volute tongue wall being a part of the flap, and the second part of the volute tongue wall being a part of the volute housing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2010/051918 WO2011101019A1 (en) | 2010-02-16 | 2010-02-16 | Mechanical coolant pump |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130011250A1 true US20130011250A1 (en) | 2013-01-10 |
Family
ID=42938620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/579,037 Abandoned US20130011250A1 (en) | 2010-02-16 | 2010-02-16 | Mechanical coolant pump |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130011250A1 (en) |
EP (1) | EP2536928B1 (en) |
JP (1) | JP2013519828A (en) |
CN (1) | CN102844539A (en) |
MX (1) | MX2012009360A (en) |
WO (1) | WO2011101019A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9574485B2 (en) | 2012-10-19 | 2017-02-21 | Pierburg Pump Technology Gmbh | Mechanical coolant pump |
US9644524B2 (en) | 2013-11-07 | 2017-05-09 | Honda Motor Co., Ltd. | Cooling water passage structure |
US9689393B2 (en) | 2012-02-14 | 2017-06-27 | Pierburg Pump Technology Gmbh | Mechanical coolant pump |
US20190331131A1 (en) * | 2016-01-22 | 2019-10-31 | Litens Automotive Partnership | Pump with variable flow diverter that forms volute |
EP3245406B1 (en) * | 2015-01-16 | 2020-12-09 | Industrie Saleri Italo S.P.A. | Cooling pump group with means of adjustment |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015106671A1 (en) | 2015-04-29 | 2016-11-03 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | pump |
CN106368789A (en) * | 2016-11-24 | 2017-02-01 | 奇瑞汽车股份有限公司 | Diesel engine water pump |
EP3438556A1 (en) * | 2017-08-03 | 2019-02-06 | Grundfos Holding A/S | Mixing device, heating system with a mixing device and method |
JP7146540B2 (en) * | 2018-09-13 | 2022-10-04 | 株式会社山田製作所 | control valve |
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JPS58122394A (en) * | 1982-01-14 | 1983-07-21 | Kubota Ltd | Volute pump |
JPS58202400A (en) * | 1982-05-21 | 1983-11-25 | Hitachi Ltd | Centrifugal pump |
JPS62142820A (en) * | 1985-12-18 | 1987-06-26 | Yamada Seisakusho:Kk | Cooling device for multi row internal combustion engine |
JPH04237898A (en) * | 1991-01-18 | 1992-08-26 | Nissan Motor Co Ltd | Water pump of internal combustion engine |
JP3405610B2 (en) * | 1994-10-03 | 2003-05-12 | 住友ゴム工業株式会社 | Pneumatic radial tire |
JP3438211B2 (en) * | 1996-08-30 | 2003-08-18 | アイシン精機株式会社 | Water pump for internal combustion engine |
TR200704048A2 (en) * | 2007-06-12 | 2008-09-22 | Kirpart Otomoti̇v Parçalari Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ | Temperature-controlled circulation water pump for internal combustion engines. |
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2010
- 2010-02-16 CN CN2010800662384A patent/CN102844539A/en active Pending
- 2010-02-16 JP JP2012553192A patent/JP2013519828A/en active Pending
- 2010-02-16 EP EP10705990.9A patent/EP2536928B1/en not_active Not-in-force
- 2010-02-16 WO PCT/EP2010/051918 patent/WO2011101019A1/en active Application Filing
- 2010-02-16 US US13/579,037 patent/US20130011250A1/en not_active Abandoned
- 2010-02-16 MX MX2012009360A patent/MX2012009360A/en not_active Application Discontinuation
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US1274678A (en) * | 1917-01-29 | 1918-08-06 | Joseph C Butler | Water circulating and cooling pump. |
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GB2377253A (en) * | 2001-07-05 | 2003-01-08 | Ford Global Tech Inc | Cooling system including a pump with a flow restriction valve |
Cited By (8)
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US9689393B2 (en) | 2012-02-14 | 2017-06-27 | Pierburg Pump Technology Gmbh | Mechanical coolant pump |
US9689392B2 (en) | 2012-02-14 | 2017-06-27 | Pierburg Pump Technology Gmbh | Mechanical coolant pump |
US9726178B2 (en) | 2012-02-14 | 2017-08-08 | Pierburg Pump Technology Gmbh | Mechanical coolant pump |
US9574485B2 (en) | 2012-10-19 | 2017-02-21 | Pierburg Pump Technology Gmbh | Mechanical coolant pump |
US9644524B2 (en) | 2013-11-07 | 2017-05-09 | Honda Motor Co., Ltd. | Cooling water passage structure |
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US20190331131A1 (en) * | 2016-01-22 | 2019-10-31 | Litens Automotive Partnership | Pump with variable flow diverter that forms volute |
US11105339B2 (en) * | 2016-01-22 | 2021-08-31 | Litens Automotive Partnership | Pump with variable flow diverter that forms volute |
Also Published As
Publication number | Publication date |
---|---|
JP2013519828A (en) | 2013-05-30 |
MX2012009360A (en) | 2013-03-21 |
CN102844539A (en) | 2012-12-26 |
WO2011101019A1 (en) | 2011-08-25 |
EP2536928A1 (en) | 2012-12-26 |
EP2536928B1 (en) | 2018-11-14 |
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Legal Events
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AS | Assignment |
Owner name: PIERBURG PUMP TECHNOLOGY GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FOURNIER, ARNAUD, MR.;SIMON, GILLES, MR.;REEL/FRAME:029033/0854 Effective date: 20120828 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |