EP3685046A1 - Variable-delivery pump device and circuit including such a pump - Google Patents
Variable-delivery pump device and circuit including such a pumpInfo
- Publication number
- EP3685046A1 EP3685046A1 EP18785697.6A EP18785697A EP3685046A1 EP 3685046 A1 EP3685046 A1 EP 3685046A1 EP 18785697 A EP18785697 A EP 18785697A EP 3685046 A1 EP3685046 A1 EP 3685046A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turbine
- shutter
- pump device
- cam
- shutter element
- 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
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- 238000007789 sealing Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
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- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000001131 transforming effect Effects 0.000 claims description 3
- 230000004323 axial length Effects 0.000 claims description 2
- 239000000110 cooling liquid Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000005294 ferromagnetic effect Effects 0.000 claims description 2
- 230000005291 magnetic effect Effects 0.000 claims description 2
- 239000003550 marker Substances 0.000 claims description 2
- 230000002441 reversible effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000005457 optimization Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding 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
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0027—Varying behaviour or the very pump
-
- 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
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P5/12—Pump-driving arrangements
-
- 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
- F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
-
- 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
- F01P2025/00—Measuring
- F01P2025/08—Temperature
- F01P2025/32—Engine outcoming fluid temperature
Definitions
- the present invention relates to the field of devices for circulating or pumping liquid fluid with a rotary member, such as a turbine, and relates to a variable flow pump device, and a circulation circuit comprising at least one least such a device.
- Variable flow pumps have, of course, been known for a very long time, in particular for pumps with rotary delivery members provided with fins or vanes.
- the variations in flow are obtained by varying the speed of rotation of the rotary delivery members, by action on the variable speed electric motors driving them in rotation.
- variable flow pump devices are known in which the turbine is moved in translation in the longitudinal direction of its axis of rotation, between a deployed position in which the turbine is fully exposed to the current of the circulating flow and a retracted position in which the turbine is located outside the circulating flow, for example apart in a recess.
- these devices cause a complex assembly of the turbine, require sufficient clearance in the direction of the axial displacement and do not do not allow to obtain a complete cut of the circulation (flow zero).
- a closing or insulating means covers the outside by capping the circulation or discharge member, such as a turbine, so as to adjust the degree of interaction of the rotary active discharge or circulation element, in particular with blades or blades, with the flow of liquid.
- a variable flow pump device comprising, firstly, a pump body defining a circulation chamber with at least one inlet and at least one outlet, other a turbine or similar member attached to a drive shaft rotatably mounted in the pump body at a receiving housing or mounting bearing of generally cylindrical or discoidal shape and disposed in the circulation chamber and, finally, a movable shutter member, in the direction of the longitudinal axis of the turbine shaft, in the translational chamber and covering, as a function of its axial position, adjustably the outer periphery of the turbine.
- a cam member rotated by a controlled actuator and cooperating schematically with said shutter member for its displacement in translation, is also present inside the pump body.
- the cam member is guided in rotation by the pump body and is located outside and around the bell-shaped shutter member, the latter also containing a compression spring urging said bell retracted non-overlapping position of the impeller.
- the subject of the invention is a variable flow pump device of the type mentioned above and characterized in that the shutter element and the cam element have cylindrical walls and are arranged concentrically around the housing of receiving the turbine shaft, and in that the rotary cam member extends within the sliding shutter member and has on the outer face of its wall at least one helical guideway on which circulates at least one corresponding follower element integral with the inner face of the wall of the shutter member, thereby cooperatively forming a mechanism for transforming a rotary movement of the cam member about the longitudinal axis into a translational movement of the shutter element along this axis.
- FIGS. 1A and 1B are sectional views, along a plane comprising the longitudinal axis of the turbine shaft, of a variable flow pump device according to a first embodiment of the invention, the element shutter being respectively located in a position of maximum retraction (Figure 1A) and in a maximum deployment position (Figure 1B);
- Figure 2 is a perspective view of a pump device as shown in Figures 1A and 1B;
- FIGS. 3 to 10 illustrate various constituent components and different steps for producing the pump device as represented in FIG. 2, namely:
- FIGS. 4A to 4C perspective views, front (FIGS. 4A and
- FIGS. 7A and 7B are sectional views, in a plane passing through the longitudinal axis of the turbine shaft, of a variable-flow pump device according to a second embodiment, with the shutter element in FIG. maximum retracted position (FIG. 7A) and maximum deployed position (FIG. 7B), the secondary part of the pump body being removed;
- Fig. 8 is an exploded view illustrating symbolically the cooperation between the essential components (cam member / shutter member) of the motion transformation mechanism forming part of the pump device shown in Fig. 6;
- Figure 9 is a partially schematic and perspective view illustrating the drive and operation of the mechanism of Figure 14;
- Fig. 10 is a perspective view of an object similar to that of Fig. 6A, in accordance with a constructive variant of the invention according to the embodiment of Figs. 7 and 8;
- FIG. 11 is a perspective view, similar to that of FIG. 10, of an alternative embodiment of the object represented in this latter figure, and
- Figure 12 is a sectional view, similar to that of Figures 1 and 7, of a third embodiment of the invention, the secondary part of the pump body being removed.
- FIGS. 1, 2 A and 7 and 12 illustrate a variable flow pump device comprising, on the one hand, a pump body 2 defining a circulation chamber 3 with at least one inlet 4 and at least one outlet 4 on the other hand, a turbine 5 or a similar rotary member fixed (e) on a drive shaft 6 rotatably mounted in the pump body 2 at a receiving housing 7 of the drive member, this turbine 5 being of discoidal general shape and disposed in the circulation chamber 3 and, finally, a shutter element 8, movable in translation according to the direction of the longitudinal axis AL of the shaft 6 and covering, as a function of its axial position, in an adjustable manner, at least a portion of the outer periphery 5 'of the turbine 5, or not.
- a cam member 9 is rotated by an actuator 10 and kinematically co-operates with said shutter member 8 for translational movement within the pump body 2.
- actuator 10 any rotatable member adapted to circulating or discharging a liquid, normally provided with vanes or fins and having an outer dimension of disc or cylindrical shape.
- such a member has a generally cylindrical or discoidal general shape and has a circumferential edge, defining a band-shaped circular lateral surface with a determined dimension in the direction of the axis of rotation of the turbine: this peripheral slice corresponds to the "outer periphery 5" referred to herein.
- the shutter member 8 and the cam member 9 have cylindrical walls 8 'and 9' and are arranged concentrically around the receiving housing 7 forming part of the pump body 2 and receiving the shaft 6 Moreover, the rotary cam element 9 is located inside the sliding shutter element 8 and has, on the outer face 9 "of its wall 9 ', at least one guide path 11 helical on which circulates at least one corresponding follower element 12 integral with the inner face 8 "of the wall 8 'of the shutter element 8.
- These elements 8 and 9 thus form by cooperation a mechanism for transforming a rotary movement of the cam element 9 about the longitudinal axis AL in a translational movement of the shutter member 8 along this axis AL.
- a compact and compact construction (collection and overlapping arrangement of the elements 8, 9 and the shaft of the turbine 5) is advantageously achieved both axially and radially, while at the same time benefiting, for one size overall determined, a maximum dimension of the shutter element 8 in terms of diameter and simultaneous maximization of possibility of extension of said shutter member 8 beyond the cam member 9, and thus the recovery of the periphery 5 'of the turbine 5.
- the invention makes it possible to considerably limit the parts and areas of the pump body 2 requiring precise manufacture with a low tolerance, and to concentrate them at a limited region (the receiving housing 7).
- the region of mutual engagement of the screw-nut connection between the elements 8 and 9 is limited to a restricted zone of the element 8, advantageously opposite its free front edge 14, in order to dispose of a height or width of the covering of the turbine 5 by the shutter element 8 in full deployment or extension position, which is maximum for a given size (in the axial direction) of said element 8.
- the water pump devices 1 referred to herein can be of two types, namely:
- - Or pumps mounted on a support body, for example a motor casing, possibly structurally integrated with the latter, and cooperating with the latter to form the circulation chamber 3.
- the pump body is then in the form of a half-shell or bell and is secured in a sealed manner on the support body.
- the reference 2 "' can designate either a part of the pump body 2 (complementary to the part 2" for example) or a part of a support body, for example a crankcase and, therefore, the references 2, 2 "may designate either the pump body in its entirety (bell-shaped), or a part 2" only of the pump body 2 ( Figures 1, 7 and 12).
- the invention advantageously provides that the cam element 9 and the shutter element 8 form, by cooperation, a telescopic tubular assembly, the longitudinal axis of which coincides with that AL of the shaft 6 of the turbine 5 and which can pass from a fully retracted configuration in which the shutter member 8 in no way covers the outer periphery 5 'of the turbine 5, and is substantially completely folded around the cam member 9, to a fully deployed configuration in which the shutter member 8 substantially completely covers the outer periphery 5 'of the turbine 5 and extends in majority cantilever beyond the cam member 9, the reversible passage from one configuration to the other is carried out gradually and proportionally depending on the rotational position of the cam member 9 about the axis AL ( Figures 1A and 1B and Figures 7A and 7B).
- the shutter member 8 in fully deployed position, only an extreme annular portion of the shutter member 8 remains engaged on the cam member 9, while in fully retracted position, the shutter member is fitted in an overlapping manner over substantially its entire height. (dimension along the axis AL) on the cam element 9.
- cam member 9, the shutter member 8 and the turbine 5 with its shaft 6 are all mounted on the same part 2 "of the pump body 2, which also forms part of the receiving housing 7.
- the invention advantageously provides that the turbine 5 is cantilevered on a free end portion of the drive shaft 6 extending beyond the receiving housing 7.
- the invention can furthermore provide that the cam element 9 is mounted directly around said receiving housing and at the rear of said turbine 5 and advantageously has a radial extension. at most substantially equivalent to that of said turbine 5.
- the cam element 9 and the shutter element 8 both of generally hollow cylindrical shape, have substantially equivalent dimensions along their common axis, said at least one guide path 11 formed on the outer face 9 "of the wall 9 'of the cam member 9 extending in the axial direction AL of said cam member 9, over the majority, preferably over substantially the whole, of the axial length of this element 9.
- the elements 8 and 9 have overall conformations similar to rings or sleeves, with side walls Cylindrical 8 ', 9' on which are advantageously formed, in one piece, the various means for guiding, driving and mutual cooperation of said elements.
- the receiving housing 7 advantageously consists of a cylindrical tube formed integrally with the wall of the pump body 2, or the main part 2 "of the latter.
- the cylindrical tube forming the housing 7, which passes through the wall of the pump body 2 can also extend protruding outwardly of the pump body 2 to provide a sufficient housing length for the bearing of the shaft 6 without being too much protruding in the internal volume (circulation chamber 3), the shaft 6 may for example carry, on its portion opening outwards, a drive pulley 6 ".
- the progressivity of the translational movement of the shutter element 8 can be optimized.
- the hollow cylindrical shutter element 8 comprises at least two, preferably at least three, follower elements 12, for example in the form of lugs, pins, fingers or the like, protruding towards the internal and homogeneously distributed over its circumference, the or each guide path 11 consisting of a groove or groove extending over a fraction or over a whole tower, or even several turns in case of single path, on the outer face 9 "of the wall 9 'of the cam member 9.
- the assembly formed by the shutter member 8 and the cam member 9 is biased by an elastic means (not shown) in a state corresponding to a total clearance of the outer periphery 5 ' the turbine 5 by the shutter member 8, with the possible also a total clearance of the supply inlet 4 and the discharge outlet 4 'of the circulation chamber 3, said elastic bias being provided by a means acting in rotation on the cam member 9, in translation on the shutter element 8 or integrated in the actuator.
- the invention can propose, as shown for example in FIGS. 1B, 11B and 12, that in the extended position of recovery maximum of the outer periphery 5 'of the turbine 5 by the shutter member 8, the latter also sealingly sealing the outlet (s) 4' of the circulation chamber 3, this or these (s) ) being arranged radially with respect to the longitudinal axis AL of rotation of the turbine 5, on the outer periphery of the toroidal internal volume of the distribution chamber 3 extending around the turbine 5, the inlet of supply 4 opening into said chamber 3 in front of the turbine 5 in the direction of the longitudinal axis AL.
- the hollow cylindrical shutter element 8 may comprise, at its front peripheral edge 14, a sealing means 15 adapted and intended to come into contact with an opposite wall portion of a secondary part 2 "'of the pump body 2 or with a crankcase element 2"' (as shown in FIGS. 1A and 1B) when the shutter element 8 is in the maximum deployed position, with simultaneous total overlap of the periphery 5 'outer of the turbine 5, and, where appropriate, a sealing of the outlet or exhaust 4' of the circulation chamber 3.
- this sealing means 15 under the shape of a compression seal may, for example, be overmolded on a support ring 15 'adapted to be secured by welding with the front edge 14 of the shutter member 8 or overmolded.
- the seal 15 bears on a wall portion of a secondary portion 2 "'of the pump body 2 facing the turbine 5.
- the pump device 1 further comprises at least one specific, integrated or 16, 17, 25 means for axially or linearly securing the movement of the pump member. moving the shutter element 8, in addition to its translational subjection resulting from its sliding assembly on the cam member 9, this through a guide link in translation and rotational locking between the shutter member 8 and the pump body 2 ( Figures 1, 2, 4, 6, 7 and figures 11 and 14 to 16).
- the securing means 16 consists of an annular flange which is rigidly secured to the receiving housing 7 receiving the shaft 6 of the turbine 5, via the an internal tubular extension 16 'also forming a rotational guide bearing for the cam member 9, and which comprises on its outer periphery radial formations 18 projecting and / or recessed cooperating with complementary sites 19 formed on the inner face 8 "of the cylindrical wall 8 'of the shutter member 8.
- Said projecting and / or recessed sites 19 have an elongated and profiled structure in the axial direction AL of the cylindrical shutter element 8 and said formations 18 slide along said sites 19 during the translational movement of the shutter member 8 under the effect of the rotation of the cam member 9, the flange 16 thus ensuring a locking rota translation and guiding in translation of said shutter element 8.
- the formations 18 and the sites 19 have mutually complementary crenellated shapes, thus ensuring engagement and guidance over the entire circumference.
- the annular flange 16 may comprise, on its outer periphery, a seal 20 for sealing with the inner face 8 "of the cylindrical wall 8 of the shutter element 8 (FIGS. 1A, 1B, 4 and 8B).
- tubular extension 16 'of a single piece of said flange 16 has an internal metal insert 16 "of annular shape, on which it is molded.
- the extension 16 'with the insert 16" constitutes thus a resistant and low clearance rotatable mounting bearing for the cam element 9.
- the securing means 17 may consist of guideways, projecting and / or reentrant, formed in a wall portion 2 'of the pump body 2 surrounding the shutter member 8, extending parallel to the direction of the longitudinal axis AL of the shaft 6 of the turbine 5 and with which come into engagement, with sliding ability, projecting and / or re-entrant formations 17 'present on the outer face 8 "' of the cylindrical wall 8 'of the shutter element 8.
- the guideways 17 consist of rectilinear grooves parallel to the axis AL of the shaft 6 of the turbine 5 and each formed on the internal face of the wall portion 2 'of the pump body 2 (FIG. 10).
- the external formations 17 'of the shutter element 8 consist of ribs adapted to be received in the grooves 17 of the pump body 2.
- a shutter flange 16 (but not axial guide) and a tubular metal insert 16 "forming a rotary mounting bearing for the cam member 9, may be provided.
- the grooves are not machined or formed directly on the pump body 2, but are formed on an insert 21 made of plastic material of PTFE (polytetrafluoroethylene) type, which is, for example, mounted tightly. in the above-mentioned wall portion 2 'of the pump body 2.
- PTFE polytetrafluoroethylene
- an U-shaped annular insert piece 25 may be snap-fitted into the pump body 2, around the cylindrical wall of the housing. receiving housing 7 of the shaft 6 of the turbine 5 and against a wall portion 2 'of the pump body 2. The shutter elements 8 and cam 9 mutually cooperating are then arranged in said insert part 25.
- the wall internal cylindrical member 25 'of said insert member 25 forming a support and rotational guiding surface for the cam member 9 and the cylindrical outer wall 25 “comprises securing means 17 in the form of guideways, projecting or recessing, formed in said wall 25", extending parallel to the direction of the longitudinal axis AL of the shaft 6 of the turbine 5 and with which come into engagement, with sliding ability, protruding formations and / or re-entrant 17 'present on the outer face 8 "' of the cylindrical wall 8 'of the shutter element 8.
- the internal volume of the annular insert part 25 with a U section is closed by an annular flange forming a cover 26 and coming into sealing engagement against the internal face of the cylindrical wall of the shutter element 8.
- Said insert piece 25 with the shutter element 8, the cam member 9 and the annular flange 26 may constitute, if necessary, a pre-assembled subassembly before mounting in the pump body 2.
- the motion transmission kinematic chain from the actuator 10 may comprise, in addition to possible reduction gears 10 ", a pinion or toothed wheel of drive 10 'meshing with a ring gear 23 of the cam member 9 formed integrally therewith and located opposite the front side 14 of the shutter member 8.
- the rolling bearing 6 ' is tightly and sealingly mounted in the support bearing 7 formed in one piece with the main part 2 "of the pump body 2.
- a seal 24 can be mounted between the axis 6 and receiving housing 7.
- the pump body 2 is advantageously constituted by a portion 2 "including the receiving housing 7, and forming a cover or bell, which is mounted on a portion 2" 'of the crankcase, comprising in particular the feed inlet 4 and against which bears the shutter element 8 in the maximum deployed position.
- the water pump device 1 is an independent module and the pump body consists of two parts 2 "and 2"', assembled together in a sealed manner at an assembly plane. , namely a main part (equivalent to 2 ") comprising in particular the receiving housing 7 of the shaft 6 and a secondary portion (equivalent to 2"') comprising the feed inlet 4 and on which supports the shutter element 8 in the maximum overlap position.
- the elements 8 and 9 in particular are advantageously made of a strong and hard plastic material having a low coefficient of friction, such as PPS (polyphenylene sulfide).
- PPS polyphenylene sulfide
- these elements 8 and 9 are in the form of integrally molded parts.
- the latter may furthermore comprise a position sensor (not shown) detecting the translational position of the shutter element 8, for example a magnetic sensor able to record the position of a ferromagnetic marker integrated in the shutter element 8.
- the sensor can be integrated in the actuator 10 in the form of an angular positioning sensor of the output shaft of the actuator 10.
- said shutter element 8 comprises at least one cutout or a passage 27 in its cylindrical wall 8 '(see FIGS. 4B, 8 and 10).
- the invention also relates to a vehicle, in particular an automobile, comprising at least one circulation circuit for a liquid fluid, such as, for example, a cooling liquid circuit, characterized in that said circuit comprises at least one pump device. 1 as described above.
- the circuit may further comprise at least one means for measuring the temperature of the circulating liquid fluid, whose measurement signal is used to control the actuator 10 driving the cam element 9 of the pump device 1.
Landscapes
- 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)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1758627A FR3071278B1 (en) | 2017-09-18 | 2017-09-18 | VARIABLE FLOW PUMP DEVICE AND CIRCUIT COMPRISING SUCH A PUMP |
PCT/FR2018/052241 WO2019053377A1 (en) | 2017-09-18 | 2018-09-13 | Variable-delivery pump device and circuit including such a pump |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3685046A1 true EP3685046A1 (en) | 2020-07-29 |
EP3685046B1 EP3685046B1 (en) | 2021-09-01 |
Family
ID=60138604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18785697.6A Active EP3685046B1 (en) | 2017-09-18 | 2018-09-13 | Variable-delivery pump device and circuit including such a pump |
Country Status (5)
Country | Link |
---|---|
US (1) | US11168694B2 (en) |
EP (1) | EP3685046B1 (en) |
CN (1) | CN111417785A (en) |
FR (1) | FR3071278B1 (en) |
WO (1) | WO2019053377A1 (en) |
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DE102014219565B4 (en) * | 2013-10-07 | 2015-10-15 | Schaeffler Technologies AG & Co. KG | Outer actuator for a runner cover of an adjustable water pump |
ITBS20130174A1 (en) * | 2013-11-22 | 2015-05-23 | Ind Saleri Italo Spa | ADJUSTABLE COOLING PUMP UNIT BY MEANS OF A CAM ELEMENT |
EP2902631B1 (en) * | 2014-02-04 | 2018-10-24 | METELLI S.p.A. | An adjustable centrifugal pump with shutter actuated by means of a roto-translating system of inclined surfaces |
DE102014009367B3 (en) * | 2014-06-21 | 2015-03-05 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Adjustable coolant pump |
US9932885B2 (en) * | 2015-02-04 | 2018-04-03 | Bullseye Power, LLC | Tunable turbocharger compressor cover |
AT517163B1 (en) * | 2015-05-13 | 2019-08-15 | Bitter Eng & Systemtechnik Gmbh | ROTARY PUMP |
DE102015119095B4 (en) * | 2015-11-06 | 2019-03-21 | Pierburg Gmbh | Coolant pump for an internal combustion engine |
DE102015119092B4 (en) * | 2015-11-06 | 2019-03-21 | Pierburg Gmbh | Method for controlling a mechanically controllable coolant pump for an internal combustion engine |
JP2017141850A (en) * | 2016-02-08 | 2017-08-17 | Ntn株式会社 | Linear motion mechanism and clutch mechanism |
-
2017
- 2017-09-18 FR FR1758627A patent/FR3071278B1/en active Active
-
2018
- 2018-09-13 EP EP18785697.6A patent/EP3685046B1/en active Active
- 2018-09-13 US US16/647,400 patent/US11168694B2/en active Active
- 2018-09-13 CN CN201880060551.3A patent/CN111417785A/en active Pending
- 2018-09-13 WO PCT/FR2018/052241 patent/WO2019053377A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN111417785A (en) | 2020-07-14 |
FR3071278A1 (en) | 2019-03-22 |
EP3685046B1 (en) | 2021-09-01 |
WO2019053377A1 (en) | 2019-03-21 |
US11168694B2 (en) | 2021-11-09 |
US20210148367A1 (en) | 2021-05-20 |
FR3071278B1 (en) | 2020-02-21 |
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