WO2003036145A1 - Soupape de commande de liquide de refroidissement pour moteur electrique - Google Patents

Soupape de commande de liquide de refroidissement pour moteur electrique Download PDF

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Publication number
WO2003036145A1
WO2003036145A1 PCT/US2002/033828 US0233828W WO03036145A1 WO 2003036145 A1 WO2003036145 A1 WO 2003036145A1 US 0233828 W US0233828 W US 0233828W WO 03036145 A1 WO03036145 A1 WO 03036145A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
fluid passage
engine
outlet
fluid
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.)
Ceased
Application number
PCT/US2002/033828
Other languages
English (en)
Inventor
James Carson Hawkins
Brian Graichen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cooper Technology Services LLC
Original Assignee
Cooper Technology Services LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cooper Technology Services LLC filed Critical Cooper Technology Services LLC
Publication of WO2003036145A1 publication Critical patent/WO2003036145A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
    • F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages

Definitions

  • the present invention relates to an electric engine coolant control valve assembly including a pivoting valve which controls the flow of an engine coolant.
  • Engine coolant flows around the engine to cool the engine.
  • a valve assembly opens and the coolant flows into the radiator for cooling. After heat in the coolant is removed in the radiator, the cooled engine coolant is recirculated back to the engine.
  • a prior art valve assembly is operated by a linear valve.
  • the linear valve moves between two positions: a fully opened position and a fully closed position.
  • the valve is driven away from the valve seat, allowing engine coolant to flow from the engine and into the radiator.
  • the valve slides towards the valve seat to stop the flow of coolant to the radiator.
  • the valve moves linearly towards and away from the valve seat.
  • One drawback to the prior art valve assembly is the lack of control of the valve. Since the valve only moves between two positions, the control of the coolant flow through the valve seat is reduced. Hence, there is a need in the art for a valve assembly for refined control the flow of an engine coolant from an engine to a radiator.
  • a valve assembly controls the flow of engine coolant between an engine and a radiator. After the heated coolant exits the engine, the valve assembly directs the coolant either through a bypass port for return to the engine or through a radiator port for direction to a radiator for cooling.
  • a water pump pumps the coolant exiting both the bypass port and the radiator back and to the engine.
  • the valve assembly includes a valve pivotable over a larger radiator hole and a smaller bypass hole.
  • the larger radiator hole leads to the radiator, and the smaller bypass hole leads back to the engine.
  • the valve When the valve is in the live position, the radiator hole is covered by the valve, and the coolant flows through the bypass hole for recirculation back to the engine.
  • the valve pivots towards the dead position, the bypass hole is covered by the valve, exposing the radiator hole. The coolant flows through the radiator hole to the radiator for cooling. The coolant is then recirculated back to the engine.
  • a temperature detecting sensor proximate to the engine detects coolant temperature and sends a signal to an engine control unit.
  • the valve pivots away from the live position and towards the dead position.
  • the valve covers the bypass hole, exposing the radiator hole and allowing coolant to enter the radiator for cooling.
  • the position of the valve depends on the value detected by the temperature sensor.
  • a position sensor provides feedback to the engine control unit to confirm the valve is positioned at the desired position.
  • the valve can be positioned at any of an infinite number of positions between the live position and dead position depending on engine requirements.
  • a spring member positioned around the pivot point biases the valve to the dead position, allowing coolant to flow to the radiator.
  • Figure 1 schematically illustrates a system employing the valve assembly of the present invention
  • FIG. 2 illustrates a prior art valve assembly
  • Figure 3 illustrates a perspective view of the valve assembly of the present invention
  • Figure 4 illustrates a perspective view of the housing of the valve assembly of the present invention in a dead position with the cover removed
  • Figure 5 illustrates a perspective view of the housing of the valve assembly of the present invention in a live position with the cover removed
  • Figure 6 illustrates a cross-sectional view of the valve assembly of the present invention
  • FIG. 1 illustrates a cooling system 20 employing the valve assembly 22 of the present invention. Coolant exits the engine 24 having a temperature sensor 36.
  • the valve assembly 22 directs coolant either through a bypass port 26 for return to the engine 24 or through a radiator port 28 for direction to the radiator 30 for cooling prior to returning to the engine 24.
  • a water pump 32 pumps the coolant exiting from both the bypass port 26 and the radiator 30 back and to the engine 24.
  • the system 20 further includes a heating core 34 which draws hot coolant from the engine 24 and returns the coolant to the water pump 32 which operates continuously.
  • the system 20 further includes an engine control unit 38 which sends a signal 40 to the valve assembly 22 and to the water pump 32.
  • FIG. 2 illustrates a prior art valve assembly 100.
  • a valve assembly 100 includes a valve 102 slidable in the X direction over a valve seat 104 between an open and closed position. As the temperature of the coolant in the engine 108 increases, the valve 102 is driven away from the valve seat 104, allowing the heated coolant to enter the radiator 106 for cooling. When the temperature of the coolant decreases, the valve 102 is driven towards the valve seat 104, preventing or reducing the amount of coolant from flowing through the valve seat 104.
  • the valve assembly 22 of the present invention is illustrated in Figure 3.
  • the valve assembly 22 includes a cover 44 having an inlet 46 which is secured to a housing 42 by a plurality of attachment members 48 which pass though aligned holes 50 and 52 in the housing 42 and cover 44, respectfully (shown in Figure 6).
  • the valve assembly 22 includes a ceramic surface which is durable and provides low leakage, improving emissions and heater performance.
  • Figures 4 and 5 illustrate the valve assembly 22 with the cover 44 removed.
  • the valve assembly 22 includes a valve 54 pivotable about pivot point 58 and driven by a motor 36 which provides high efficiency and torque.
  • the valve 54 is a paddle valve.
  • the valve 54 pivots over a plate 60 including a larger radiator hole 62 and a smaller bypass hole 64.
  • the larger radiator hole 62 aligns with a larger radiator port 28 leading to the radiator 30, and the smaller bypass hole 64 aligns with the smaller bypass port 26 leading back to the engine 24.
  • the cover 44 is attached to the housing 42, the inlet 46 aligns with the radiator port 28, allowing the coolant to flow straight through the valve assembly 22. This allows for high flow rates, low flow resistance, and a low pressure drop.
  • Seals 70 are positioned between the aligned holes 62, 64 and ports 26, 28 to prevent leakage of the coolant.
  • the cover 44 includes an extended shoulder portion 72 which presses against the valve 54 during operation to prevent the valve 54 from lifting from the plate 60.
  • FIG 5 illustrates the electrically controlled valve assembly 22 in the live position in which the radiator hole 62 and is covered by the valve 54. h the live position, coolant from the engine 24 flows through the bypass hole 64 and the bypass port 26, recirculating back to the engine 24. As the valve 54 pivots towards the dead position illustrated in Figure 4, the bypass hole 64 is covered by the valve 54, exposing the radiator hole 62 and radiator port 28. The coolant flows through the radiator hole 62 and the radiator port 28 to the radiator 30. In the radiator 30, heat is removed from the coolant and released to the atmosphere. The coolant is then recirculated back to the engine 24 after passing through the water pump 32.
  • the temperature sensor 36 proximate to the engine 24 detects temperature in the coolant and sends a signal to the engine control unit 38.
  • a controller 74 When the engine control unit 38 determines that the coolant needs to be cooled, a controller 74 generates an external electric signal 40 to electrically activate and pivot the valve 54 towards the dead position, h the dead position, the valve 54 covers the bypass hole 64 and exposes the radiator hole 62, allowing a desired amount of coolant to enter the radiator 30.
  • the position of the valve 54 is dependent on the value detected by the temperature sensor 36.
  • a position sensor 76 provides feedback to the engine control unit 38 to confirm that the valve 54 is positioned at the desired position.
  • the valve 54 can be positioned at any of an infinite number of positions between the live position and dead position depending on engine requirements. For example, if the valve 54 is positioned midway between the dead position and the live position, coolant will flows through both the bypass hole 64 and the radiator hole 62. By positioning the valve 54 at a desired location, the flow of the coolant can be controlled. Efficiency and response time can be increased, and emissions can be reduced.
  • the valve assembly 22 further includes a spring member 78 positioned around the pivot point 58 which biases the valve 54 to the dead position.
  • One end 80 of the spring member 78 is attached to the valve assembly 22 by a connector 82.
  • the spring member 78 biases the valve 54 to the dead position, allowing coolant to flow to the radiator 30.
  • the spring member 78 acts as a fail-safe mechanism to allow engine cooling to continue in the event of a power loss.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

L'invention concerne un système de soupape dirigeant un liquide de refroidissement soit à travers un orifice de dérivation pour le renvoyer à un moteur, soit à travers un orifice de radiateur, pour le renvoyer à un radiateur, à des fins de refroidissement. Le système de soupape comprend une soupape pouvant pivoter sur un grand orifice du radiateur et un orifice de dérivation plus réduit. Lorsque la soupape est en position ouverte, l'orifice du radiateur est recouvert par la soupape et le liquide de refroidissement passe à travers l'orifice de dérivation afin de retourner au moteur. Lorsque la soupape pivote en position fermée, l'orifice de dérivation est recouvert et l'orifice du radiateur est alors exposé. Le liquide de refroidissement s'écoule à travers l'orifice du radiateur, jusqu'au radiateur, à des fins de refroidissement. La position de la soupape dépend de la valeur détectée par un capteur de température.
PCT/US2002/033828 2001-10-22 2002-10-22 Soupape de commande de liquide de refroidissement pour moteur electrique Ceased WO2003036145A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33754601P 2001-10-22 2001-10-22
US60/337,546 2001-10-22

Publications (1)

Publication Number Publication Date
WO2003036145A1 true WO2003036145A1 (fr) 2003-05-01

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Application Number Title Priority Date Filing Date
PCT/US2002/033828 Ceased WO2003036145A1 (fr) 2001-10-22 2002-10-22 Soupape de commande de liquide de refroidissement pour moteur electrique

Country Status (1)

Country Link
WO (1) WO2003036145A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2299084A1 (fr) * 2009-09-16 2011-03-23 Pierburg Pump Technology GmbH Pompe de refroidissement
WO2014177456A1 (fr) * 2013-05-03 2014-11-06 Behr Gmbh & Co. Kg Vanne à commande électrique destinée à régler des débits volumétriques dans un système de chauffage et/ou de refroidissement d'un véhicule automobile
WO2015070955A1 (fr) * 2013-11-16 2015-05-21 Brose Fahrzeugteile Gmbh & Co Kommanditgesellschaft, Würzburg Pompe à réfrigérant électromotrice
WO2018071321A1 (fr) * 2016-10-11 2018-04-19 Shell Oil Company Vannes-portes rotatives sous-marines
WO2019162656A1 (fr) * 2018-02-22 2019-08-29 Aker Solutions Limited Soupape de commande directionnelle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440382A (en) * 1980-10-17 1984-04-03 Commissariat A L'energie Atomique Valve with a direct passage and rotary control
EP0795703A1 (fr) * 1996-03-15 1997-09-17 Fleck Controls Inc. Vanne de régulation à disque rotatif pour un système de conditionnement d'eau
DE10000772A1 (de) * 1999-01-11 2000-07-13 Elbi Int Spa Hydraulikverteiler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440382A (en) * 1980-10-17 1984-04-03 Commissariat A L'energie Atomique Valve with a direct passage and rotary control
EP0795703A1 (fr) * 1996-03-15 1997-09-17 Fleck Controls Inc. Vanne de régulation à disque rotatif pour un système de conditionnement d'eau
DE10000772A1 (de) * 1999-01-11 2000-07-13 Elbi Int Spa Hydraulikverteiler

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8955471B2 (en) 2009-09-16 2015-02-17 Pierburg Pump Technology Gmbh Mechanical coolant pump
WO2011032808A1 (fr) * 2009-09-16 2011-03-24 Pierburg Pump Technology Gmbh Pompe mécanique à liquide de refroidissement
CN102022174A (zh) * 2009-09-16 2011-04-20 皮尔伯格泵技术有限责任公司 机械式冷却剂泵
EP2299084A1 (fr) * 2009-09-16 2011-03-23 Pierburg Pump Technology GmbH Pompe de refroidissement
US20160053911A1 (en) * 2013-05-03 2016-02-25 Mahle International Gmbh Electrically drivable valve for controlling volumetric flows in a heating and/or cooling system of a motor vehicle
WO2014177456A1 (fr) * 2013-05-03 2014-11-06 Behr Gmbh & Co. Kg Vanne à commande électrique destinée à régler des débits volumétriques dans un système de chauffage et/ou de refroidissement d'un véhicule automobile
US10539249B2 (en) 2013-05-03 2020-01-21 Mahle International Gmbh Electrically drivable valve for controlling volumetric flows in a heating and/or cooling system of a motor vehicle
WO2015070955A1 (fr) * 2013-11-16 2015-05-21 Brose Fahrzeugteile Gmbh & Co Kommanditgesellschaft, Würzburg Pompe à réfrigérant électromotrice
CN105745450A (zh) * 2013-11-16 2016-07-06 博泽沃尔兹堡汽车零部件有限公司 电动冷却剂泵
CN105745450B (zh) * 2013-11-16 2017-10-24 博泽沃尔兹堡汽车零部件有限公司 电动冷却剂泵
US9890686B2 (en) 2013-11-16 2018-02-13 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Wuerzburg Electromotive coolant pump
WO2018071321A1 (fr) * 2016-10-11 2018-04-19 Shell Oil Company Vannes-portes rotatives sous-marines
WO2019162656A1 (fr) * 2018-02-22 2019-08-29 Aker Solutions Limited Soupape de commande directionnelle

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