EP3149304B1 - A degassing system - Google Patents

A degassing system Download PDF

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Publication number
EP3149304B1
EP3149304B1 EP15739360.4A EP15739360A EP3149304B1 EP 3149304 B1 EP3149304 B1 EP 3149304B1 EP 15739360 A EP15739360 A EP 15739360A EP 3149304 B1 EP3149304 B1 EP 3149304B1
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EP
European Patent Office
Prior art keywords
slot
gases
degassing system
collection chamber
degassing
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.)
Active
Application number
EP15739360.4A
Other languages
German (de)
French (fr)
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EP3149304A1 (en
Inventor
Omer CEYHUN
Baris Bulut
Bulent UNUVAR
Ibrahim TURGUT
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.)
Ford Otomotiv Sanayi AS
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Ford Otomotiv Sanayi AS
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.)
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Publication date
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Publication of EP3149304A1 publication Critical patent/EP3149304A1/en
Application granted granted Critical
Publication of EP3149304B1 publication Critical patent/EP3149304B1/en
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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
    • F01P11/0285—Venting 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
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control

Definitions

  • the present invention relates to a degassing system which enables to discharge the gas accumulating particularly in internal combustion engine cooling systems.
  • Cooling systems are developed in order to maintain the engine at the most suitable operation temperature.
  • the said cooling systems generally carry the heat they receive from the engine to the radiator by means of a coolant. This way, the excessive heat in the engine is transferred to the environment.
  • the engine is cold at the initial startup of the engine. The engine should run for a while in order to reach the most suitable operation temperature. If the said cooling system is operational during the time in which the engine reaches from the initial startup to the most suitable operation temperature, the time for the engine to reach the most suitable operation temperature will increase. This in turn will cause engine wear-out, failure to burn the fuel efficiently, and thus increase of both the fuel consumption and the unburned fuel discharged through the exhaust.
  • thermostats are used in order to ensure that the cooling system is not operational until the engine reaches the most suitable temperature. If the temperature of the coolant is lower than a predetermined temperature, the thermostat prevents the coolant from going to the radiator. As the temperature of the coolant rises, the thermostat is opened and thus enables the coolant to go to the radiator. Air may be accumulated in the said cooling system from time to time. In this case, efficiency of the cooling system declines.
  • the said thermostats are below the highest coolant level; thus it is not possible to discharge the gases accumulating in the cooling system.
  • Degassing in poppet type thermostats is generally carried out via a discharge valve provided on the thermostat in by-pass positions. For this reason, degassing is carried out more easily in comparison to the sleeve type thermostats.
  • United States patent document no. US4300718 an application in the state of the art, discloses a housing comprised of a poppet type thermostat and degassing passage placed at the cooling system outlet of the engine.
  • the upstream side thermostat is arranged on a predetermined angle position on a circumference relative to a virtual straight line where a central position of an opening start area of the first valve passes through centers of the two communication holes.
  • the objective of the present invention is to provide a degassing system according to claim 1, which enables to discharge the gas accumulating particularly in internal combustion engine cooling systems, especially at every position of the thermostat.
  • the degassing system (1) of the present invention comprises
  • the degassing system (1) of the present invention basically comprises at least one body (2) which is in the form of a cover whose sides are higher than its middle part, A tray which is flat in the middle having sides that curve upwards can be given as an example for the form of the body (2).
  • the said slots (3) are preferably circular in compliance with the upper section of the thermostats that will be disposed therein.
  • the said circular shape forms a cylinder by rising from the middle part of the body (2) in the same direction with the sides of the body (2).
  • the degassing system (1) of the present invention comprises at least one collection chamber (6) in which the air carried by the delivery channels (5) accumulate.
  • the degassing system (1) of the present invention also comprises at least one collection channel (7), which is located on the collection chamber (6), and which enables the gases that may have accumulated in the body (2) to be discharged from the body (2) and the said gases to be taken into the collection chamber (6).
  • the collection chamber (6) comprises at least one discharge channel (8) which enables the air accumulating in the chamber to be discharged.
  • the said discharge channel (8) enables the gases; which accumulate in the cooling system, to which the degassing system (1) of the present invention is connected; and which are collected by the degassing system (1); to be discharged from the said cooling system.
  • the bodies of the thermostats installed in the degassing system (1) of the present invention are positioned at a higher point than the coolant provided in the cooling system to which the degassing system (1) is connected.
  • the slot openings (4) enable degassing at the semi-open, fully-open and by-pass positions of the thermostats that are connected to the degassing system (1) of the present invention.
  • the collection channel (7) enables degassing at the semi-open and by-pass positions of the said thermostats. Thus degassing can be enabled for each position of the said thermostats.
  • the slot openings (4) and the delivery channels (5) are circular having a diameter of 4 mm.
  • the discharge channel (8) is circular having a diameter of 1.5 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Temperature-Responsive Valves (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Sampling And Sample Adjustment (AREA)

Description

    Field of the Invention
  • The present invention relates to a degassing system which enables to discharge the gas accumulating particularly in internal combustion engine cooling systems.
    • Background of the Invention
  • As the operation time of the internal combustion engines increase, their temperatures rise. Cooling systems are developed in order to maintain the engine at the most suitable operation temperature. The said cooling systems generally carry the heat they receive from the engine to the radiator by means of a coolant. This way, the excessive heat in the engine is transferred to the environment. However, the engine is cold at the initial startup of the engine. The engine should run for a while in order to reach the most suitable operation temperature. If the said cooling system is operational during the time in which the engine reaches from the initial startup to the most suitable operation temperature, the time for the engine to reach the most suitable operation temperature will increase. This in turn will cause engine wear-out, failure to burn the fuel efficiently, and thus increase of both the fuel consumption and the unburned fuel discharged through the exhaust. For this reason, thermostats are used in order to ensure that the cooling system is not operational until the engine reaches the most suitable temperature. If the temperature of the coolant is lower than a predetermined temperature, the thermostat prevents the coolant from going to the radiator. As the temperature of the coolant rises, the thermostat is opened and thus enables the coolant to go to the radiator. Air may be accumulated in the said cooling system from time to time. In this case, efficiency of the cooling system declines.
  • Particularly in the engines of heavy commercial vehicles comprising two sleeve-type thermostats, the said thermostats are below the highest coolant level; thus it is not possible to discharge the gases accumulating in the cooling system. Degassing in poppet type thermostats is generally carried out via a discharge valve provided on the thermostat in by-pass positions. For this reason, degassing is carried out more easily in comparison to the sleeve type thermostats.
  • International patent document no. WO9713059 , an application in the state of the art, discloses a poppet type thermostatic valve which is installed to an internal combustion engine coolant circuit and which controls the flow.
  • United States Patent document no. US6045051 , an application known in the state of the art, discloses an improved known thermostat cover having certain form.
  • United States patent document no. US4300718 , an application in the state of the art, discloses a housing comprised of a poppet type thermostat and degassing passage placed at the cooling system outlet of the engine.
  • Japan Patent document no. JP2012026279 (A ) an application in the state of the art, discloses the two thermostats close communication holes of a partition in first valves when a temperature of the refrigerant in an upper chamber is less than a predetermined temperature and simultaneously open a second inlet in second valves. While, when the temperature of the refrigerant is the predetermined temperature of higher, the thermostats open the communication holes and simultaneously close the second inlet. The upstream side thermostat is arranged on a predetermined angle position on a circumference relative to a virtual straight line where a central position of an opening start area of the first valve passes through centers of the two communication holes.
    • Summary of the Invention
  • The objective of the present invention is to provide a degassing system according to claim 1, which enables to discharge the gas accumulating particularly in internal combustion engine cooling systems, especially at every position of the thermostat.
    • Detailed Description of the Invention
  • A degassing system developed to fulfill the objective of the present invention is illustrated in the accompanying figures, in which
    • Figure 1 is a schematic view of the degassing system.
    • Figure 2 is another view of the degassing system.
  • The components in the figures are given reference numbers as follows:
    1. 1. Degassing system
    2. 2. Body
    3. 3. Slot
    4. 4. Slot opening
    5. 5. Delivery channel
    6. 6. Collection chamber
    7. 7. Collection channel
    8. 8. Discharge channel
  • The degassing system (1) of the present invention comprises
    • at least one body (2) which is in the form of a cover whose sides are higher than its middle part,
    • at least two slots (3), each one of which can cover at least one part of a thermostat, and which preferably rise from the middle part of the body (2) in the same direction with the sides of the body (2),
    • at least two slot openings (4), of which there is one provided in each slot (3), and which enable the gases accumulating in the slot (3) to be discharged from the slot (3),
    • at least two delivery channels (5), of which there is one provided at each slot opening (4), and which enable to carry the gases arriving at the slot opening (4),
    • at least one collection chamber (6) in which the gases carried by the delivery channels (5) accumulate,
    • at least one collection channel (7), which is located on the collection chamber (6), and which enables the gases that may have accumulated in the body (2) to be discharged from the body (2) and the said gases to be taken into the collection chamber (6),
    • at least one discharge channel (8) which enables the air accumulating in the collection chamber (6) to be discharged.
  • The degassing system (1) of the present invention basically comprises at least one body (2) which is in the form of a cover whose sides are higher than its middle part, A tray which is flat in the middle having sides that curve upwards can be given as an example for the form of the body (2). There are at least two slots (3) on the flat part of the body (2), each one of which can cover at least one part of a thermostat. The said slots (3) are preferably circular in compliance with the upper section of the thermostats that will be disposed therein. The said circular shape forms a cylinder by rising from the middle part of the body (2) in the same direction with the sides of the body (2). There are at least two slot openings (4), of which there is one provided in each of the said slots (3) in order to enable the gases accumulating in the slot (3) to be discharged from the slot (3). The said slot openings (4) are connected to at least two delivery channels (5), of which there is one provided at each slot opening (4), and which enable to carry the gases arriving at the said slot openings (4). The degassing system (1) of the present invention comprises at least one collection chamber (6) in which the air carried by the delivery channels (5) accumulate. The degassing system (1) of the present invention also comprises at least one collection channel (7), which is located on the collection chamber (6), and which enables the gases that may have accumulated in the body (2) to be discharged from the body (2) and the said gases to be taken into the collection chamber (6). The collection chamber (6) comprises at least one discharge channel (8) which enables the air accumulating in the chamber to be discharged. The said discharge channel (8) enables the gases; which accumulate in the cooling system, to which the degassing system (1) of the present invention is connected; and which are collected by the degassing system (1); to be discharged from the said cooling system.
  • In the preferred embodiment of the invention, the bodies of the thermostats installed in the degassing system (1) of the present invention are positioned at a higher point than the coolant provided in the cooling system to which the degassing system (1) is connected.
  • In the preferred embodiment of the invention, the slot openings (4) enable degassing at the semi-open, fully-open and by-pass positions of the thermostats that are connected to the degassing system (1) of the present invention. In this embodiment, the collection channel (7) enables degassing at the semi-open and by-pass positions of the said thermostats. Thus degassing can be enabled for each position of the said thermostats.
  • In the preferred embodiment of the invention, the slot openings (4) and the delivery channels (5) are circular having a diameter of 4 mm. In this embodiment, the discharge channel (8) is circular having a diameter of 1.5 mm. These values are given for the present embodiment; however these values can be different for different embodiments.

Claims (4)

  1. A degassing system (1) comprising
    - at least one body (2) which is in the form of a cover whose sides are higher than its middle part,
    - at least two slots (3), each one of which being adapted for covering at least one part of a thermostat, and which preferably rise from the middle part of the body (2) in the same direction with the sides of the body (2), and characterized by
    - at least two slot openings (4), of which there is one provided in each slot (3), and which enable the gases accumulating in the slot (3) to be discharged from the slot (3),
    - at least two delivery channels (5), of which there is one provided at each slot opening (4), and which enable to carry the gases arriving at the slot opening (4),
    - at least one collection chamber (6) in which the gases carried by the delivery channels (5) accumulate,
    - at least one collection channel (7), which is located on the collection chamber (6), and which enables the gases that may have accumulated in the body (2) to be discharged from the body (2) and the said gases to be taken into the collection chamber (6),
    - at least one discharge channel (8) which enables the air accumulating in the collection chamber (6) to be discharged.
  2. A degassing system (1) according to claim 1, characterized by the slot openings (4) which are circular having a diameter of 4 mm.
  3. A degassing system (1) according to any one of the preceding claims, characterized by the delivery channels (5) which are circular having a diameter of 4 mm.
  4. A degassing system (1) according to any one of the preceding claims, characterized by the discharge channel (8) which is circular having a diameter of 1.5 mm.
EP15739360.4A 2014-05-29 2015-05-28 A degassing system Active EP3149304B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201406100 2014-05-29
PCT/TR2015/000221 WO2015183222A1 (en) 2014-05-29 2015-05-28 A degassing system

Publications (2)

Publication Number Publication Date
EP3149304A1 EP3149304A1 (en) 2017-04-05
EP3149304B1 true EP3149304B1 (en) 2018-04-25

Family

ID=53682774

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Application Number Title Priority Date Filing Date
EP15739360.4A Active EP3149304B1 (en) 2014-05-29 2015-05-28 A degassing system

Country Status (6)

Country Link
EP (1) EP3149304B1 (en)
CN (1) CN106414942B (en)
BR (1) BR112016028053B1 (en)
RU (1) RU2649165C1 (en)
TR (1) TR201616748T1 (en)
WO (1) WO2015183222A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110529280A (en) * 2019-07-31 2019-12-03 上海中船三井造船柴油机有限公司 The ventilative pipeline structure of diesel engine cylinder lid for ship/jacket-cooling water

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2314301C3 (en) * 1973-03-22 1978-07-20 Bayerische Motoren Werke Ag, 8000 Muenchen Uni-running cooling device for piston internal combustion engines
US4300718A (en) * 1980-04-10 1981-11-17 Ford Motor Company Engine cooling system air venting arrangement
SU1373838A2 (en) * 1986-06-13 1988-02-15 Московский автомобильный завод им.И.А.Лихачева Liquid-type cooling system of internal combustion engine
US5497734A (en) * 1993-12-22 1996-03-12 Nissan Motor Co., Ltd. Cooling system for liquid-cooled engine
FR2739432B1 (en) * 1995-09-29 1997-10-31 Renault THERMOSTATIC VALVE FOR INTERNAL COMBUSTION ENGINE
JP3819681B2 (en) * 2000-07-03 2006-09-13 本田技研工業株式会社 Water cooling engine cooling system
JP5672808B2 (en) * 2010-07-20 2015-02-18 トヨタ自動車株式会社 Engine cooling system
JP2013068161A (en) * 2011-09-22 2013-04-18 Yamaha Motor Co Ltd Saddle-type vehicle
US8967091B2 (en) * 2011-12-14 2015-03-03 Cummins Inc. Thermostat housing which provides optimized coolant flow

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
BR112016028053A2 (en) 2018-06-19
BR112016028053B1 (en) 2021-11-03
WO2015183222A1 (en) 2015-12-03
EP3149304A1 (en) 2017-04-05
CN106414942B (en) 2019-04-12
TR201616748T1 (en) 2017-08-21
RU2649165C1 (en) 2018-03-30
CN106414942A (en) 2017-02-15

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