US20100206882A1 - Multi chamber coolant tank - Google Patents

Multi chamber coolant tank Download PDF

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Publication number
US20100206882A1
US20100206882A1 US12/371,223 US37122309A US2010206882A1 US 20100206882 A1 US20100206882 A1 US 20100206882A1 US 37122309 A US37122309 A US 37122309A US 2010206882 A1 US2010206882 A1 US 2010206882A1
Authority
US
United States
Prior art keywords
reservoir
overflow
pressurized
fluid
tank
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
Application number
US12/371,223
Other languages
English (en)
Inventor
Timothy J. Wessels
Ryan J. Dotzenrod
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.)
Thermo King Corp
Original Assignee
Thermo King Corp
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 Thermo King Corp filed Critical Thermo King Corp
Priority to US12/371,223 priority Critical patent/US20100206882A1/en
Assigned to THERMO KING CORPORATION reassignment THERMO KING CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DOTZENROD, RYAN J., Wessels, Timothy J.
Priority to EP10250121A priority patent/EP2221462A1/en
Priority to CN201010118627A priority patent/CN101806239A/zh
Priority to JP2010030539A priority patent/JP2010190219A/ja
Publication of US20100206882A1 publication Critical patent/US20100206882A1/en
Abandoned legal-status Critical Current

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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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/029—Expansion reservoirs
    • 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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • 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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/0204—Filling
    • 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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/0204—Filling
    • F01P11/0209—Closure caps
    • F01P11/0238—Closure caps with overpressure valves or vent 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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/0276—Draining or purging

Definitions

  • the present invention relates to coolant tanks for receiving fluid from a cooling system, such as an internal combustion engine cooling system.
  • the invention provides a coolant tank for receiving a fluid from the cooling system of an internal combustion engine.
  • the coolant tank includes a pressurized tank having a pressurized reservoir configured to contain the fluid, an inlet port in fluid communication with the pressurized reservoir and configured to direct fluid from the from the cooling system and into the pressurized reservoir, an outlet port in fluid communication with the pressurized reservoir and configured to direct the fluid from the pressurized reservoir to the cooling system, a fill neck in fluid communication with the pressurized reservoir, and a pressure cap removably coupled to the fill neck.
  • the coolant tank also includes an overflow tank integrated with the pressurized tank.
  • the overflow tank includes an overflow reservoir maintained at atmospheric pressure and configured to receive overflow fluid from the pressurized reservoir when the liquid of the cooling system expands, and at least a portion of the fill neck is positioned within the overflow reservoir.
  • the invention provides a coolant tank for receiving a fluid from the cooling system of an internal combustion engine.
  • the coolant tank includes a pressurized tank having a pressurized reservoir configured to contain the fluid, an inlet port in fluid communication with the pressurized reservoir and configured to direct fluid from the from the cooling system and into the pressurized reservoir, an outlet port in fluid communication with the pressurized reservoir and configured to direct the fluid from the pressurized reservoir to the cooling system, a fill neck in fluid communication with the pressurized reservoir, and a pressure cap removably coupled to the fill neck.
  • the coolant tank also includes an overflow tank integrated with the pressurized tank.
  • the overflow tank includes an overflow reservoir maintained at atmospheric pressure and configured to receive overflow fluid from the pressurized chamber when the liquid of the cooling system expands, and a fill cap removably coupled to the overflow reservoir.
  • the position of the fill cap relative to the overflow reservoir and the position of the pressure cap relative to the pressure reservoir define an upward direction, and at least a portion of the overflow reservoir is positioned above the pressurized reservoir.
  • the invention provides a coolant tank for receiving a fluid from the cooling system of an internal combustion engine.
  • the coolant tank includes an overflow tank including an overflow reservoir maintained at atmospheric pressure, and an overflow duct in fluid communication with the overflow reservoir.
  • the coolant tank also includes a pressurized tank integrated with the overflow tank.
  • the pressurized tank includes a pressurized reservoir configured to contain the fluid, an inlet port in fluid communication with the pressurized reservoir and configured to direct fluid from the cooling system and into the pressurized reservoir, an outlet port in fluid communication with the pressurized reservoir and configured to direct the fluid from the pressurized reservoir to the cooling system, a fill neck in fluid communication with the pressurized reservoir, and a pressure cap removably coupled to the fill neck.
  • the overflow duct is integrated with the fill neck.
  • the pressure cap includes a pressure limiting valve configured to allow the fluid to flow from the pressurized reservoir, through the fill neck, and through the overflow duct to the overflow reservoir when the pressurized reservoir reaches a first predetermined pressure, and a check valve configured to allow the fluid to flow from the overflow reservoir, through the overflow duct, and through the fill neck to the pressurized reservoir when the pressure in the pressurized reservoir drops below a second predetermined pressure.
  • FIG. 1 is a schematic view of a cooling system and coolant tank according to the present invention.
  • FIG. 2 is an exploded view of the coolant tank of FIG. 1 .
  • FIG. 3 is a rear perspective view of the coolant tank of FIG. 1 .
  • FIG. 4 is a cross section view taken along line 4 - 4 of FIG. 3 .
  • FIG. 1 shows a schematic of a cooling system 10 including the coolant tank 14 according to the present invention.
  • the coolant tank 14 receives a fluid from the cooling system 10 , such as the cooling system of an internal combustion engine.
  • FIGS. 2-4 show one construction of the coolant tank 14 . It is to be understood that other constructions are possible within the scope of the invention, as described herein.
  • the coolant tank 14 includes a first body portion 16 , a second body portion 20 , and a third body portion, or divider 24 , coupled between the first and second body portions.
  • the body portions 16 , 20 and the divider 24 are each plastic and made from a plastic-injection-molding process.
  • the coolant tank 14 could be defined by a single body portion, two body portions, or more than three body portions.
  • the body portions 16 , 20 and the divider 24 are hot-plate welded together such that they are integrated together to define the coolant tank 14 .
  • other welding or fastening means may be employed.
  • the assembled coolant tank 14 includes a pressurized tank 36 and an overflow tank 40 integrated with each other, or formed as a single unit or piece.
  • the body portions 16 , 20 and divider 24 define features of the pressurized tank 36 , the overflow tank 40 , or both the pressurized tank 36 and overflow tank 40 , the structure of the coolant tank 14 will be described with reference to its association with either the pressurized tank 36 or the overflow tank 40 .
  • the pressurized tank 36 includes a pressurized reservoir 18 that is in fluid communication with the cooling system 10 and is a part of the cooling system circuit.
  • the pressurized tank 36 also includes a fill neck 26 in direct fluid communication with the pressurized reservoir 18 , and a pressure cap 30 removably coupled to the fill neck 26 , preferably by way of a threaded engagement.
  • the pressure cap 30 includes a pressure limiting valve 34 and a check valve 38 , best depicted in the schematic of FIG. 1 .
  • the coolant tank 14 shown FIG. 1 is a schematic version of the cross section of the coolant tank 14 shown in FIG. 4 . Particularly, a cross section of the pressure cap 30 is shown schematically in FIG. 1 .
  • the pressure limiting valve 34 and the check valve 38 will be described in greater detail below.
  • the fill neck 26 is fluidly separated from the overflow tank 40 by the pressure limiting valve 34 when the pressure limiting valve 34 is closed.
  • the fill neck 26 includes a substantially cylindrical wall that extends vertically upward from an opening 28 in the divider 24 at the top of the pressurized reservoir 18 , although the fill neck 26 may be non-vertical and non-cylindrical in other constructions.
  • the fill neck 26 is substantially surrounded by the overflow tank 40 .
  • the fill neck 26 may be integrated with a side wall of the second body portion 20 , such that a portion of the fill neck 26 is surrounded by the overflow tank 40 .
  • the fill neck 26 is at least partially positioned within the overflow tank 40 ; and most preferably, the fill neck 26 is positioned substantially within the overflow tank 40 .
  • the pressurized tank 36 includes an inlet port 42 in fluid communication with the cooling system 10 and the pressurized reservoir 18 .
  • the inlet port 42 is positioned proximate the top of the fill neck 26 and provides an inlet for the inflow of fluid to the pressurized reservoir 18 from the cooling system 10 .
  • the inlet port 42 is positioned at or near a high point in the cooling system and, likewise, at or near the top of the pressurized tank 36 and the coolant tank 14 .
  • the pressurized tank 36 also includes an outlet port 46 in fluid communication with the pressurized reservoir 18 and the cooling system 10 .
  • the outlet port 46 is positioned proximate the bottom of the pressurized reservoir 18 and provides an outlet for the outflow of fluid from the pressurized reservoir 18 to the cooling system 10 .
  • the outlet port 46 is positioned low on the pressurized tank 36 to receive fluid from a low point of the pressurized reservoir 18 and to discharge fluid to the cooling system 10 .
  • the pressurized tank 36 includes a threaded port 48 and a float switch 52 threaded into the threaded port 48 .
  • the float switch 52 generates a warning signal when the fluid level in the pressurized reservoir 18 drops below the level of the float switch 52 .
  • the overflow tank 40 includes an overflow reservoir 22 that is maintained at atmospheric pressure and that receives fluid from the pressurized reservoir 18 when the fluid in the pressurized reservoir 18 expands, as will be described in greater detail below.
  • the overflow tank 40 includes an overflow duct 50 that is in fluid communication with the overflow reservoir 22 .
  • the overflow duct 50 is integrated with the fill neck 26 , and shares a portion of the cylindrical wall of the fill neck 26 .
  • the overflow duct 50 is also defined by a U-shaped channel extending out from the shared portion of the fill neck 26 .
  • the overflow duct 50 provides a passageway, parallel to the fill neck 26 , for fluid passing from the pressurized reservoir 18 through the fill neck 26 to the overflow reservoir 22 .
  • the overflow duct 50 also provides a passageway for fluid passing from the overflow reservoir 22 through the overflow duct 50 to the fill neck 26 and to the pressurized reservoir 18 .
  • the overflow tank 40 includes an overflow port 54 positioned near the top of the overflow reservoir 22 , providing fluid communication with the atmosphere to maintain the overflow reservoir 22 at atmospheric pressure.
  • the overflow port 54 discharges fluid that reaches the height of the overflow port 54 within the overflow reservoir 22 .
  • the overflow tank 40 also includes a non-pressurized fill neck 58 and a fill cap 62 removably coupled thereto, preferably by way of a threaded engagement.
  • the position of the fill cap 62 relative to the overflow reservoir 22 and the position of the pressure cap 30 relative to the pressurized reservoir 18 define an upward direction.
  • the pressurized reservoir 18 is positioned entirely below the overflow reservoir 22 . In other constructions, the pressurized reservoir 18 is positioned substantially below the overflow reservoir 22 .
  • the coolant tank 14 includes bosses 66 for receiving fasteners to secure the tank 14 within the enclosure.
  • the bosses 66 are formed as a part of the pressurized tank 36 ; however, in other constructions, the bosses 66 may be located on any part of the tank 14 .
  • the coolant tank 14 is made of a transparent or semi-transparent material so that the fluid level can be easily monitored, such as by markings 32 or indicia on the overflow tank 40 .
  • the tank 14 can be made of a non-transparent material and fluid level can be monitored using a sight glass or other suitable apparatus.
  • the divider 24 , the outlet port 46 , and the threaded port 48 are integrally formed with or coupled to the first body portion 16 .
  • the divider 24 , the fill neck 26 , the inlet port 42 , the overflow duct 50 , the overflow port 54 , and the non-pressurized fill neck 58 are integrally formed with or coupled to the second body portion 20 .
  • the coolant tank 14 de-aerates coolant and provides a compact one-piece multi-chamber structure.
  • the compact multi-chamber design having the tank inlet port 42 positioned at or near the top of the coolant tank 14 is especially useful in applications where there is relatively little vertical distance between the highest point in the engine's cooling circuit (e.g., cooling system 10 ) and the top of the enclosure in which the engine and cooling system 10 are housed.
  • coolant and air entrained within the coolant enter the pressurized reservoir 18 by way of the inlet port 42 and fill neck 26 .
  • Coolant collects below in the pressurized reservoir 18 and exits to the lowest point of the cooling system 10 by way of the outlet port at the bottom of the pressurized reservoir 18 , as indicated by the arrows in FIG. 1 .
  • the air is released through the pressure limiting valve 34 in the pressure cap 30 , i.e., the pressure limiting valve 34 opens allowing fluid to pass from the pressurized reservoir 18 and the fill neck 26 , through the pressure limiting valve 34 , and through the overflow duct 50 to the bottom of the overflow reservoir 22 as indicated by arrows in FIG. 1 . Since the overflow reservoir 22 is open to the atmosphere, the air is purged from the system by way of the open overflow port 54 , also indicated by an arrow in FIG. 1 .
  • the overflow reservoir 22 contains additional coolant, which can be added by way of the non-pressurized fill neck 58 when the fill cap 62 is removed.
  • the coolant cools and contracts creating a vacuum in the cooling system 10 .
  • the check valve 38 opens allowing fluid to pass from the overflow reservoir 22 through the overflow duct 50 to the fill neck 26 and to the pressurized reservoir 18 , as indicated by arrows in FIG. 1 .
  • the cooling system 10 can also be filled by way of the fill neck 26 when the system 10 is shut down.
  • the pressure cap 30 can be removed and coolant can be added directly to the pressurized reservoir 18 by way of the fill neck 26 . This is useful, for example, during the initial fill, when extreme low fluid is detected (e.g., when the float switch is tripped), and when the coolant is replaced for maintenance.
  • the invention provides, among other things, a compact multi-chamber coolant tank.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US12/371,223 2009-02-13 2009-02-13 Multi chamber coolant tank Abandoned US20100206882A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/371,223 US20100206882A1 (en) 2009-02-13 2009-02-13 Multi chamber coolant tank
EP10250121A EP2221462A1 (en) 2009-02-13 2010-01-25 Multi chamber coolant tank
CN201010118627A CN101806239A (zh) 2009-02-13 2010-02-12 多腔室冷却剂箱
JP2010030539A JP2010190219A (ja) 2009-02-13 2010-02-15 多チャンバ冷却液タンク

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/371,223 US20100206882A1 (en) 2009-02-13 2009-02-13 Multi chamber coolant tank

Publications (1)

Publication Number Publication Date
US20100206882A1 true US20100206882A1 (en) 2010-08-19

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US12/371,223 Abandoned US20100206882A1 (en) 2009-02-13 2009-02-13 Multi chamber coolant tank

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US (1) US20100206882A1 (zh)
EP (1) EP2221462A1 (zh)
JP (1) JP2010190219A (zh)
CN (1) CN101806239A (zh)

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US20140226687A1 (en) * 2011-09-05 2014-08-14 Alltec Angewandte Laserlicht Technologie Gmbh Laser Device with a Laser Unit and a Fluid Container for a Cooling Means of Said Laser
US20150345368A1 (en) * 2013-01-15 2015-12-03 Tristone Flowtech Solutions Liquid container and device for adjusting the liquid phase of a cooling circuit of a heat engine having such a container built-in
US9348026B2 (en) 2011-09-05 2016-05-24 Alltec Angewandte Laserlicht Technologie Gmbh Device and method for determination of a position of an object by means of ultrasonic waves
US20160160740A1 (en) * 2014-12-08 2016-06-09 Toledo Molding & Die, Inc. Dual Chamber Coolant Reservoir
US20160208678A1 (en) * 2015-01-20 2016-07-21 Ford Global Technologies, Llc Degas bottle having centrifugal air separator for use in engine cooling system
US9577399B2 (en) 2011-09-05 2017-02-21 Alltec Angew Andte Laserlicht Technologie Gmbh Marking apparatus with a plurality of lasers and individually adjustable sets of deflection means
US9573223B2 (en) 2011-09-05 2017-02-21 Alltec Angewandte Laserlicht Technologie Gmbh Marking apparatus with a plurality of gas lasers with resonator tubes and individually adjustable deflection means
US9573227B2 (en) 2011-09-05 2017-02-21 Alltec Angewandte Laserlight Technologie GmbH Marking apparatus with a plurality of lasers, deflection means, and telescopic means for each laser beam
US9595801B2 (en) 2011-09-05 2017-03-14 Alltec Angewandte Laserlicht Technologie Gmbh Marking apparatus with a plurality of lasers and a combining deflection device
US9664898B2 (en) 2011-09-05 2017-05-30 Alltec Angewandte Laserlicht Technologie Gmbh Laser device and method for marking an object
CN106762093A (zh) * 2017-02-28 2017-05-31 安徽江淮汽车集团股份有限公司 一种膨胀水壶及处理方法
CN106837515A (zh) * 2017-02-28 2017-06-13 安徽江淮汽车集团股份有限公司 一种膨胀水壶及处理方法
CN106837513A (zh) * 2017-02-28 2017-06-13 安徽江淮汽车集团股份有限公司 一种膨胀水壶及处理方法
CN108252793A (zh) * 2016-12-28 2018-07-06 深圳光启飞行包科技有限公司 散热水箱
US10236654B2 (en) 2011-09-05 2019-03-19 Alltec Angewandte Laserlight Technologie GmbH Marking apparatus with at least one gas laser and heat dissipator
US20190225386A1 (en) * 2018-01-19 2019-07-25 Ford Global Technologies, Llc Coolant cap mix-up prevention system for motor vehicle
US10794264B2 (en) * 2018-02-13 2020-10-06 Toyota Jidosha Kabushiki Kaisha Coolant tank
US11401857B2 (en) * 2018-04-19 2022-08-02 Jing-Jin Electric Technologies Co., Ltd. Gradient-type expansion tank for automobile
US11584191B2 (en) * 2018-07-09 2023-02-21 Ford Global Technologies, Llc Methods and system for a degas bottle
US20240077015A1 (en) * 2022-09-02 2024-03-07 Honda Motor Co., Ltd. Reservoir tank for coolant
US12000323B2 (en) * 2022-10-07 2024-06-04 Harley-Davidson Motor Company, Inc. Coolant filler neck assembly having integrated coolant overflow reservoir

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DE202011052170U1 (de) * 2011-12-02 2013-03-04 Brinkmann Pumpen K.H. Brinkmann Gmbh & Co. Kg Kühlmittelsystem für Werkzeugmaschinen
FR3011306B1 (fr) * 2013-10-01 2016-02-05 Illinois Tool Works Soupape, ensemble de degazage d'un liquide de refroidissement et procede de degazage du liquide de refroidissement
CN104632351B (zh) * 2013-11-06 2017-01-04 北汽福田汽车股份有限公司 用于液气分离的腔室结构、副水箱及发动机冷却系统
CN105386850B (zh) * 2015-12-19 2017-12-01 北京北方车辆集团有限公司 一种具有防溢流自除气功能的整体式散热装置
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JP2020007953A (ja) * 2018-07-06 2020-01-16 株式会社デンソー リザーブタンク装置
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CN101806239A (zh) 2010-08-18
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