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US20120325823A1 - Surge Tank - Google Patents

Surge Tank Download PDF

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Publication number
US20120325823A1
US20120325823A1 US13/583,075 US201013583075A US2012325823A1 US 20120325823 A1 US20120325823 A1 US 20120325823A1 US 201013583075 A US201013583075 A US 201013583075A US 2012325823 A1 US2012325823 A1 US 2012325823A1
Authority
US
United States
Prior art keywords
coolant
reservoir
surge tank
objects
engine
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
US13/583,075
Other languages
English (en)
Inventor
Taiung Juan
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.)
International Truck Intellectual Property Co LLC
Original Assignee
International Truck Intellectual Property Co 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 International Truck Intellectual Property Co LLC filed Critical International Truck Intellectual Property Co LLC
Assigned to INTERNATIONAL TRUCK INTELLECTUAL PROPERTY COMPANY, LLC reassignment INTERNATIONAL TRUCK INTELLECTUAL PROPERTY COMPANY, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JUAN, TAIUNG
Publication of US20120325823A1 publication Critical patent/US20120325823A1/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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • F01P2060/045—Lubricant cooler for transmissions

Definitions

  • the present disclosure relates generally to surge tanks for use in vehicles, including surge tanks that receive coolant, deaerates the coolant, and returns the deaerated coolant to the system.
  • a cooling water reservoir tank is provided and is used not only for storing an overflow of cooling water but also for ensuring a recirculation of a part of the cooling water to the reservoir tank, to thereby separate and remove air and vapor from the cooling water in the reservoir tank, to thereby separate and remove air and vapor from the cooling water in the reservoir tank, whereby the cooling efficiency of the cooling system is increased.
  • an independent cooling water passageway connects the reservoir tank to an engine body and a radiator
  • the reservoir tank is provided with a cap equipped with a relief valve which allows air or vapor held in an upper portion of the reservoir tank to be discharged to the atmosphere, when the pressure inside the reservoir tank exceeds a predetermined value, and thus prevents an excessive increase of the pressure in the cooling system.
  • This operation also allows air to be quickly separated from the cooling water: this air is entrained in the cooling system when the cooling water is supplemented, and remains in the cooling system. The separated air is discharged by the relief valve in the reservoir tank, and thus, the cooling efficiency of the system is enhanced.
  • FIG. 1 a schematic diagram of a simplified example of a vehicle (not shown) having a surge tank 110 for de-aerating coolant is illustrated.
  • the vehicle comprises an engine 112 and a radiator 114 through which coolant is circulated, at least at selected times, to cool the coolant for use in removing heat from the engine 112 .
  • Other components may also be cooled by the coolant such as a transmission 116 and an exhaust gas recirculation cooler (e.g. EGR cooler) not shown in this figure.
  • the coolant may also be used to provide energy to or remove energy from an HVAC—heating ventilation and air conditioning—system (not shown) of the vehicle.
  • a vehicle is a truck, such as a heavy duty or medium duty truck (not shown) used in long hauling operations or a truck tractor used for such purposes. Land vehicles are particularly desirable applications in which surge tanks would be used.
  • segments of the coolant recirculation conduits are indicated by the numbers 118 , 120 , 122 .
  • aerated coolant from the engine 112 passes via a conduit 118 to an inlet 124 to a surge tank 110 .
  • aerated coolant passes through a conduit 120 from radiator 114 to an inlet 126 to the surge tank 110 , which may separate from or in common with the inlet 126 that receive aerated fluid from conduit 24 .
  • Air is removed from the coolant as it passes through the surge tank 26 .
  • the deaerated coolant is returned to the engine 112 via a conduit 122 in FIG. 1 .
  • a surge tank is provided according to the embodiment(s) disclosed herein.
  • the surge tank includes a reservoir wherein the reservoir defines a coolant receiving inlet for coupling to the engine.
  • the reservoir also defines a reservoir outlet.
  • the coolant receiving inlet receives a flow of coolant from the engine.
  • the reservoir outlet is the outlet through which the flow of coolant is returned to the engine.
  • the surge tank further includes a plurality of objects disposed within the coolant reservoir. The plurality of objects are operatively configured to float at an upper surface of the coolant in the reservoir and to dampen the momentum of the coolant flowing from the engine.
  • FIG. 1 is a simplified diagram of one example of a vehicle system incorporating a surge tank.
  • FIG. 2A is a perspective, partial view of a prior art surge tank.
  • FIG. 2B is a perspective, partial view of a prior art surge tank where the baffles are shown disposed within the tank.
  • FIG. 2C is a perspective view of one embodiment of a surge tank of the present disclosure.
  • FIG. 3 is a perspective view of one embodiment of a surge tank of the present disclosure.
  • FIG. 4A is a cross-sectional view of an embodiment of a surge tank of the present disclosure.
  • FIG. 4B is an enlarged view of a perforated object.
  • FIG. 4C is an enlarged schematic view of the coolant interacting with the perforations in an object where an increased surface area of the fluid is exposed to air (i.e. straining effect for water).
  • FIG. 4D is an enlarged schematic view of the coolant flowing through a hole in the object.
  • FIG. 5A is a cross sectional view of a second embodiment of a surge tank of the present disclosure where a baffle maintains the plurality of objects in area of the surge tank.
  • FIG. 5B is a cross sectional view of the second embodiment of a surge tank when the tank is in an inclined position.
  • FIG. 5C is a cross sectional view of the second embodiment of a surge tank when the tank is agitated.
  • FIG. 6 is an enlarged, cross-sectional view of the second embodiment of a surge tank when the incoming flow of coolant is dampened by the plurality of objects.
  • a surge tank 10 of the present disclosure provides improved dampening to an incoming flow of coolant 12 .
  • one embodiment of the present disclosure includes a reservoir wherein the reservoir 14 defines a coolant receiving inlet 16 for coupling to the engine.
  • the coolant receiving inlet 16 receives a flow of coolant 12 from the engine (shown as 112 in FIG. 1 ) and a reservoir outlet 19 through which the flow of coolant 12 is returned to the engine.
  • the surge tank 10 further includes a plurality of objects 18 disposed within the coolant reservoir 14 .
  • the plurality of objects 18 are operatively configured to float at an upper surface 20 of the coolant 22 in the reservoir 14 and to dampen the momentum of the coolant flowing from the engine.
  • the plurality of objects 18 may cover a portion (not shown) of the entire upper surface 20 of the coolant 22 disposed within the reservoir 14 or it may cover the entire upper surface 20 of the coolant 22 disposed within the reservoir 14 as shown in FIG. 3 .
  • the plurality of objects 18 may come in a variety of shapes such as, but not limited to spheres, octagons, squares, rectangles, pyramids, and the like.
  • the plurality of objects 18 are formed from polymeric materials.
  • the plurality of objects 18 (which may be spheres, octagons, squares) may be hollow or solid. It is to be understood that it may be more cost effective and lighter weight to have hollow instead of solid objects 18 .
  • FIG. 4A a cross sectional view of the first embodiment of the present disclosure is shown where the plurality of objects 18 form multiple layers 24 , 26 , 28 near the surface 20 of the coolant 22 which is disposed within the reservoir 14 . It is to be understood that a first layer 24 of the plurality of objects 18 may be disposed below the surface 20 of the coolant 22 . A second layer 26 may be disposed at the surface 20 of the coolant 22 and a third layer 28 of objects 18 may be disposed above the surface 20 of the coolant 22 as shown.
  • Each of the objects 18 may be solid, or perforated or both solid and perforated. Referring to FIGS. 4B and 4C , the perforations 30 in the objects 18 increase the surface area of the fluid 32 which would be exposed to air. The exposure of the surface area of the fluid to air causes a straining effect for the water. It is also to be understood that the flow of coolant 12 may pass through the perforations as well as shown in FIG. 4D .
  • the surge tank 10 includes a reservoir 14 wherein the reservoir 14 defines a coolant receiving inlet 16 which is coupled to an engine (not shown).
  • the coolant receiving inlet 16 receives a flow of coolant 12 from the engine.
  • the surge tank 10 further includes a reservoir outlet 19 through which the flow of coolant 12 is returned to the engine.
  • the surge tank 10 further includes a baffle (or grating) 32 and a plurality of objects 18 .
  • the baffle (or grating) 32 may be affixed to the internal surface of the reservoir 14 or may be integral to the reservoir 14 .
  • the baffle (or grating) 32 forces the plurality of objects 18 to remain in the upper portion 34 of the surge tank 10 even when the surge tank 10 is inclined or agitated as shown in FIGS. 5B and 5C respectively. Therefore, as fluid flows from the coolant receiving inlet 16 , there will always be a plurality of objects 18 to dampen the flow of coolant 12 before or as it comes into contact with the coolant 22 that is disposed within the reservoir 14 .
  • FIG. 5B shows the second embodiment of the present disclosure in an inclined position. As shown, the surface 20 of the coolant remains horizontal. The plurality of objects 18 remains in the upper portion 34 of the reservoir 14 due to the baffle (or grating) 32 .
  • FIG. 5C shows the second embodiment of the present disclosure where the reservoir is agitated. Again, the plurality of objects 18 remains in the upper portion 34 of the reservoir 14 due to the baffle (or grating) 32 despite the movement of the reservoir 14 and the flow of coolant 12 will always be dampened under this condition.
  • the plurality of objects 18 are disposed within the coolant reservoir 14 in an upper portion 34 of the surge tank 10 and are operatively configured to float at an upper surface 20 of the coolant 22 in the reservoir 14 .
  • the plurality of objects 18 in conjunction with the baffle 32 are operatively configured to dampen the momentum of the flow of coolant 12 from the engine. Accordingly, air in the form of air bubbles is minimized within the coolant due to the dampened momentum in the flow of coolant 12 from the engine and the dispersing of the air bubbles that are in the coolant.
  • the plurality of objects 18 may be either hollow or solid or semi-sold (perforated) as described above.
  • the plurality of objects 18 may also be formed from a polymeric material or the like.
  • Each object 18 may have a diameter of about 0.5 inches. However, it is to be understood that the diameter may vary depending on the configuration of the surge tank 10 . It is also to be understood that the plurality of objects 18 cover at least a substantial amount of the upper surface 20 of the coolant 22 in the reservoir 14 . The entire upper surface 20 of the coolant 22 in the reservoir 14 may be covered by the plurality of objects 18 or a substantial portion of the coolant 22 in the reservoir 14 may be covered.
  • air bubbles are dispersed due to the plurality of objects.
  • the incoming flow of coolant 12 which enters the reservoir 14 merely needs to be dampened by engaging with the plurality of objects 18 .
  • the air bubbles 36 are dispersed and move up to the surface of the coolant as the air bubbles engage with the plurality of objects 18 .
  • a thin liquid film ( 38 in FIG. 6 ) forms over and around the objects 18 which makes a shorter travel distance for air bubbles 36 to rise up to be exposed to air and to break up.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Body Structure For Vehicles (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US13/583,075 2010-03-08 2010-03-08 Surge Tank Abandoned US20120325823A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2010/026518 WO2011112175A1 (en) 2010-03-08 2010-03-08 Surge tank

Publications (1)

Publication Number Publication Date
US20120325823A1 true US20120325823A1 (en) 2012-12-27

Family

ID=44563748

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/583,075 Abandoned US20120325823A1 (en) 2010-03-08 2010-03-08 Surge Tank

Country Status (8)

Country Link
US (1) US20120325823A1 (es)
CN (1) CN102791984A (es)
AU (1) AU2010347751A1 (es)
BR (1) BR112012022635A2 (es)
DE (1) DE112010005371T5 (es)
MX (1) MX2012009999A (es)
SE (1) SE1251139A1 (es)
WO (1) WO2011112175A1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022149428A (ja) * 2021-03-25 2022-10-06 株式会社Subaru リザーブタンク

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013019494A1 (de) 2013-11-19 2015-05-21 Daimler Ag Kühlvorrichtung zum Kühlen eines Antriebsaggregats, insbesondere einer Verbrennungskraftmaschine, eines Kraftwagens
EP4459111A1 (en) * 2023-05-03 2024-11-06 Volvo Car Corporation Thermal management system for a vehicle, vehicle comprising a thermal management system, use of a thermal management system, method for controlling a thermal management system and computer program element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5111776A (en) * 1989-09-26 1992-05-12 Nippon Soken, Inc. Cooling system for an internal combustion engine
US20090078705A1 (en) * 2007-09-21 2009-03-26 Ramsay Thomas N Floating Absorber Assembly for Reduced Fuel Slosh Noise

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2273505A (en) * 1942-02-17 Container
US2809656A (en) * 1955-12-07 1957-10-15 Dan Kamphausen Toilet flush tank assembly
US5052224A (en) * 1990-10-15 1991-10-01 Betz Laboratories, Inc. Shielded sight gauge for storage tanks
US5067561A (en) * 1990-11-30 1991-11-26 General Motors Corporation Radiator tank oil cooler
US5970928A (en) * 1998-10-28 1999-10-26 Navistar International Transportation Corp Self restricting engine cooling system deaeration line
JP2001276506A (ja) * 2000-03-30 2001-10-09 Ishikawajima Harima Heavy Ind Co Ltd ガス吸収塔における気泡発生抑制方法及びその装置
KR100571223B1 (ko) * 2003-09-26 2006-04-13 현대자동차주식회사 상용차용 냉각수 서지탱크 구조
JP2007277610A (ja) * 2006-04-04 2007-10-25 Nippon Paint Co Ltd 電着塗装における被塗物の洗浄方法および洗浄システム

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5111776A (en) * 1989-09-26 1992-05-12 Nippon Soken, Inc. Cooling system for an internal combustion engine
US20090078705A1 (en) * 2007-09-21 2009-03-26 Ramsay Thomas N Floating Absorber Assembly for Reduced Fuel Slosh Noise

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022149428A (ja) * 2021-03-25 2022-10-06 株式会社Subaru リザーブタンク
JP7633059B2 (ja) 2021-03-25 2025-02-19 株式会社Subaru リザーブタンク

Also Published As

Publication number Publication date
WO2011112175A1 (en) 2011-09-15
DE112010005371T5 (de) 2012-12-27
SE1251139A1 (sv) 2012-10-15
MX2012009999A (es) 2012-10-01
AU2010347751A1 (en) 2012-09-13
CN102791984A (zh) 2012-11-21
BR112012022635A2 (pt) 2017-10-17

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Legal Events

Date Code Title Description
AS Assignment

Owner name: INTERNATIONAL TRUCK INTELLECTUAL PROPERTY COMPANY,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JUAN, TAIUNG;REEL/FRAME:028906/0945

Effective date: 20091223

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION