WO2014058293A1 - Refroidisseur intermédiaire pour moteur de véhicule - Google Patents

Refroidisseur intermédiaire pour moteur de véhicule Download PDF

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Publication number
WO2014058293A1
WO2014058293A1 PCT/MY2012/000300 MY2012000300W WO2014058293A1 WO 2014058293 A1 WO2014058293 A1 WO 2014058293A1 MY 2012000300 W MY2012000300 W MY 2012000300W WO 2014058293 A1 WO2014058293 A1 WO 2014058293A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
intercooler
flow
engine
cycle
Prior art date
Application number
PCT/MY2012/000300
Other languages
English (en)
Inventor
Satryanatha ANTONIUS
Original Assignee
Kineflux Sdn Bhd
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 Kineflux Sdn Bhd filed Critical Kineflux Sdn Bhd
Priority to SG11201502516RA priority Critical patent/SG11201502516RA/en
Priority to CN201280077002.XA priority patent/CN104769249A/zh
Publication of WO2014058293A1 publication Critical patent/WO2014058293A1/fr
Priority to PH12015500797A priority patent/PH12015500797A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/0406—Layout of the intake air cooling or coolant circuit
    • F02B29/0437—Liquid cooled heat exchangers
    • F02B29/0443—Layout of the coolant or refrigerant circuit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00321—Heat exchangers for air-conditioning devices
    • B60H1/00342—Heat exchangers for air-conditioning devices of the liquid-liquid type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to an intercooler.
  • the present invention relates an intercooler that utilizes refrigerant flow from an air conditioning system of a vehicle for providing cold air supply to the engine of the vehicle in order to improve the efficiency of the engine.
  • Automobile engine uses energy from the mixture of burning fuel and air to produce power.
  • a proper mixture will produce efficient combustion for the power generating process and also efficient fuel consumption for the engine.
  • By providing a cold air flow into the engine more oxygen is supplied to burn more fuel that is injected into the engine as cool air has greater density as compared to hot air due to having more oxygen, thereby increasing the combustion and fuel consumption efficiencies, resulting in the generation of greater power.
  • the active type of intercooler is used for heating or cooling gases exiting a compression stage of a turbocharger.
  • the intercooler comprises a chamber for receiving the gases from the turbocharger, having a plurality of tubes through which the gases flow and an antifreeze filling the chamber and surrounding the tubes, a thermoelectric heat pump thermally coupled to the chamber and a temperature control means for controlling the temperature of gases flowing through the chamber
  • U.S. Patent No. 4823868 describes an intercooler on a turbocharged engine that comprises an intercooler core having an inlet, an outlet and a flange peripherally extending therefrom with a plurality of holes spaced around the flange; first and second gaskets positioned on either side of the flange; a housing having a face mateable with the first gasket; an intake manifold having a face mateable with the second gasket; a plurality of cap screws for clamping the housing, gaskets, flange and manifold together to form an air-tight seal therebetween; and a highly compressible intercooler seal positioned about the inlet and outlet and compressed between the intercooler core and an inside surface of the housing about the opening to form a seal therebetween.
  • intercooler that ensures a cold air flow with rich oxygen to be supplied to the engine for complete combustion to occur.
  • intercooler not only improves the efficiency of the engine by generating greater power and reducing fuel uptake but also enhances the durability of the engine.
  • the main aspect of the present invention is to provide an intercooler that utilizes refrigerant flow from an air conditioning system for providing a cold air flow supply to the engine.
  • Yet another aspect of the present invention is to provide an intercooler that contributes to the decrease in consumption of fuel.
  • Another aspect of the present invention is to provide an intercooler which enables regulation of the rate of the cold air flow that is to be transferred to the engine.
  • the present invention also describes a system (200) for providing a cold air flow to an engine (110) of a vehicle.
  • the system comprises an air conditioning cycle having a compressor (107) for compressing a refrigerant flow, a condenser (108) for condensing the compressed refrigerant flow; and an evaporator (109) for evaporating the condensed refrigerant flow into gas; and an intercooler (100) being connected to the cycle for producing the cold air flow through removing heat from ambient air flowing into the intercooler (100) by the refrigerant flow supplied by the cycle; wherein the refrigerant flow continuously passes through the intercooler (100) and back into the cycle.
  • Figure 1 shows a diagram of the system that comprises an intercooler connected to an air conditioning cycle for providing a cold air flow to the engine of a vehicle.
  • Figure 2 shows a diagram of the intercooler.
  • Figure 3 shows a graph of engine speed (RPM) versus time for an engine that receives a cold air flow from a conventional cold air flow producing system and the same engine that receives a cold air flow from the cold air flow producing system of the present invention.
  • Figure 4 shows a graph of car speed versus time of a car which employs an engine that receives a cold air flow from a conventional cold air flow producing system and the same car that uses the same engine which receives a cold air flow from the cold air flow producing system of the present invention.
  • Figure 5 is a graph and table that show the torque and power generated by the engine that receives a cold air flow from a conventional cold air flow producing system and the same engine that receives a cold air flow from the cold air flow producing system of the present invention.
  • the present invention discloses an intercooler (100) connected to an air conditioning cycle of a vehicle comprising a heat exchanger (101) having an array of fins (102) with a plurality of tubes fabricated across the fins (102), an inlet connecting the tubes (103) to an evaporator ( 109) of the cycle for receiving a refrigerant flow from the evaporator (109), a first outlet (104) connecting the tubes to a compressor (107) of the cycle for discharging the refrigerant flow from the heat exchanger (101) back into the cycle through the compressor (107), and an opening (112) for ambient air to flow into the heat exchanger and past the fins (102); and a chamber (105) coupled to the heat exchanger (101) having a second outlet (106) connected to an engine (110) of the vehicle; wherein the refrigerant flow passes through the tubes to remove heat from the ambient air for forming a cold air flow to be continuously transferred to the engine (110) through the second outlet (106) of the chamber (105).
  • the air conditioning cycle typically consists of a compressor (107) for compressing the refrigerant flow, a condenser (108) for condensing the compressed refrigerant flow and an evaporator (109) for evaporating the condensed refrigerant flow into a cold gas.
  • the refrigerant flow is supplied to the compressor (107) in the form of a low pressure cold gas.
  • the compressor (107) compresses the refrigerant flow such that molecules of the fluid become closer, increasing it energy and therefore leads to the rise of temperature of the refrigerant flow.
  • the refrigerant flow then enters the condenser (108) in the form of a high pressure and hot gas whereby the condenser (108) condenses the hot gas and converts the gas into a lower temperature gas.
  • An expansion valve (111) could be included between the condenser (108) and the evaporator (109) for changing the high pressure gas to cold temperature liquid entering the evaporator (109) that is received from the condenser (108).
  • the cold liquid is evaporated into cold gas to be provided into the car cabin by a fan.
  • the main feature of the present invention is that it utilizes refrigerant in the form of a cold gas flow exiting the evaporation stage of the air conditioning cycle to be supplied to the engine (110) upon being subject to further cooling by the intercooler (100).
  • the intercooler (100) By connecting the intercooler (100) to the air conditioning system, two continuous running cycles are formed, with one being the air conditioning cycle and another being the intercooling cycle, whereby both cycles utilize the refrigerant flow to run.
  • the intercooler (100) comprises two main parts which is the heat exchanger (101) and the chamber (105).
  • the heat exchanger (101) has an inlet (103) connected to the evaporator (109) and a first outlet (104) connected to the compressor (107), whereas the chamber (105) has a second outlet (106) connected to the engine (110).
  • a diagram of the system (200) that is formed by the two cycles is illustrated in Figure 1.
  • the system (200) used for providing the cold air flow to the engine (110) of the vehicle could be summarized as having the air conditioning cycle and an intercooler (100) that is being connected to the cycle for producing the cold air flow through removing heat from ambient air flowing into the intercooler (100) by the refrigerant flow supplied by the cycle.
  • the intercooler (100) applied in the system comes in the embodiment as described above and shown in Figure 2, other types of intercooler that allows the application of the refrigeration flow to cool ambient air for forming the cold air flow to be supplied to the vehicular engine could also be employed.
  • the heat exchanger (101) functions by using the refrigerant flow entering the heat exchanger (101) from the evaporator (109) to remove heat from the ambient air
  • the intercooler (100) is preferred to have a front mount heat exchanger in which the heat exchanger (101) is mounted at the front of the vehicle such that ambient air from the outside is forced to flow into the heat exchanger (101) via the opening (112) and through the fins (102).
  • a cross flow heat exchanger would therefore be suitable to be employed in the present invention.
  • the configuration of a cross flow heat exchanger having an array of fins (102) with tubes fabricated through the fins (102) allows the ambient air and the refrigerant flow to pass perpendicular to one another.
  • the ambient air enters the heat exchanger (101) through the gaps between each adjacent fin (102) and flows freely with even distribution across the tubes in which the refrigerant flow flowing inside the tubes removes heat of the ambient air.
  • Examples of such heat exchangers (101) are the finned-tube heat exchanger, plate heat exchanger and plate fin heat exchanger, with the finned-tube heat exchanger being the most preferred heat exchanger (101) to be applied in the present invention.
  • the refrigerant flow passes through the tubes of the heat exchanger (101) and returns to the air conditioning cycle via the first outlet (104) back into the cycle through the compressor (107).
  • Such configuration allows the refrigerant flow to be continuously supplied to the intercooler (100) to cool the ambient air.
  • the ambient air forms a cold air flow with a temperature between - 15°C below ambient temperature and -5°C below ambient temperature that is to be transferred to the engine (110) via the chamber (105) after the heat of the ambient air is removed by the refrigerant flow that passes in a direction transverse to the direction of the ambient air.
  • the intercooler (100) of the present invention saves energy while being able to produce an air flow with very low temperature as it utilizes the refrigerant flow which has a low temperature of about -5°C to 0°C from the air conditioning cycle to cool the ambient air.
  • the cold air flow has high density due to having more oxygen contained in it. This is because the lower the temperature of the air flow, the more oxygen the air flow contains.
  • the cold air flow produced from the intercooler (100) of the present invention is useful in bringing efficient combustion process inside the engine (110).
  • Rate of the air flow is dependable on the size of the chamber (105).
  • the flow rate is inversely proportional to the dimensions of the chamber (105). The larger the chamber (105), the lower the flow rate will be whereas the smaller the chamber (105), the higher the flow rate will result in.
  • the incorporation of the chamber (105) in the intercooler (100) is for regulating the rate of the air flow.
  • a high flow rate of the air flow decreases the efficiency of heat transfer from the chamber (105) into the engine (110) whereas a low flow rate leads to accumulation of more heat in the air flow and thus produces an air flow that is not cold enough to be supply to the engine (110) for generating efficient power. Therefore, to achieve an optimum flow rate for the cold air flow into the engine (110), the size of the chamber (105) plays an important role.
  • the Bernoulli's principle and Reynolds number equation are used to determine the size of the chamber (105).
  • the Reynolds number is defined in Equation 1. Due to the most effective heat transfer for the air flow being a laminar flow, the Reynolds number must be less than 10, 000. A turbulent flow is not desired in the chamber (105) as turbulence causes lose in energy.
  • A cross-sectional area of the chamber (m 2 )
  • v mean velocity of the object relative to the cold air flow (m/s).
  • ⁇ dynamic viscosity of the cold air flow (Pa- s or N- s/m 2 or kg/(m- s)).
  • v kinematic viscosity
  • v ⁇ I p, (m 2 /s).
  • Equation 2 density of the cold air flow (kg/m 3 ) With the chamber (105) being in a square or rectangular shape, the characteristic dimension of the chamber (105) is as represented in Equation 2.
  • A cross-sectional area of the chamber (m 2 )
  • Equation 6 is obtained.
  • Equation 12 could be derived into Equation 12 by substituting Equation 7 and Equation 8 into Equation 6.
  • Equation 12 the dimension of the chamber (105) could be determined in order to obtain a desired or optimum flow rate for the cold air flow that enters from the chamber (105) into the engine (110).
  • the cold air flow is kept low with negligible changes due to engine speed.
  • the rich oxygen content in the cold air flow is retained and fed into the engine air intake (110) via the second outlet (106) of the chamber (105) for burning with the fuel in order to enhance the combustion process in the engine (110) for generating more power for the vehicle.
  • a test is conducted on a car that runs on a 2500 cc Turbo Diesel non commonrail engine to determine the difference in engine speed in the unit of revolution per minute (RPM) of an engine that receives a cold air flow from a conventional cold air flow producing system having an intercooler that lowers the temperature of an air flow compressed by a turbocharger or a supercharger; and an engine that obtains a cold air flow from the cold air flow producing system of the present invention having an intercooler which uses the refrigerant flow from an air conditioning system.
  • RPM revolution per minute
  • Figure 4 shows that the car that is installed with the system of the present invention travels in higher speed than the same car which is installed with the conventional system when the same volume of fuel is applied, indicating that the system of the present invention provides more energy to the car.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

La présente invention concerne un refroidisseur intermédiaire (100) relié à un cycle de climatisation d'un véhicule, comportant un échangeur (101) de chaleur doté d'un alignement d'ailettes (102), une pluralité de tubes étant réalisés en travers des ailettes (102), une entrée reliant les tubes (103) à un évaporateur (109) du cycle pour recevoir un écoulement d'agent frigorigène en provenance de l'évaporateur (109), une première sortie (104) reliant les tubes à un compresseur ( 107) du cycle pour évacuer l'écoulement d'agent frigorigène de l'échangeur (101) de chaleur et le renvoyer dans le cycle à travers le compresseur (107), et une ouverture (112) permettant à de l'air ambiant d'entrer dans l'échangeur de chaleur et de longer les ailettes (102); et une chambre (105) couplée à l'échangeur (101) de chaleur et dotée d'une deuxième sortie (106) reliée à un moteur (110) du véhicule; l'écoulement d'agent frigorigène passant à travers les tubes pour prélever de la chaleur à partir de l'air ambiant afin de former un écoulement d'air froid destiné à être transféré en continu au moteur (110) via la deuxième sortie (106) de la chambre (105).
PCT/MY2012/000300 2012-10-10 2012-12-31 Refroidisseur intermédiaire pour moteur de véhicule WO2014058293A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SG11201502516RA SG11201502516RA (en) 2012-10-10 2012-12-31 Intercooler for vehicular engine
CN201280077002.XA CN104769249A (zh) 2012-10-10 2012-12-31 车辆发动机用中冷器
PH12015500797A PH12015500797A1 (en) 2012-10-10 2015-04-10 Intercooler for vehicular engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI2012700755A MY184031A (en) 2012-10-10 2012-10-10 Intercooler for vehicular engine
MYPI2012700755 2012-10-10

Publications (1)

Publication Number Publication Date
WO2014058293A1 true WO2014058293A1 (fr) 2014-04-17

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ID=47750002

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Application Number Title Priority Date Filing Date
PCT/MY2012/000300 WO2014058293A1 (fr) 2012-10-10 2012-12-31 Refroidisseur intermédiaire pour moteur de véhicule

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CN (1) CN104769249A (fr)
MY (1) MY184031A (fr)
PH (1) PH12015500797A1 (fr)
SG (1) SG11201502516RA (fr)
WO (1) WO2014058293A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10378429B2 (en) * 2015-10-28 2019-08-13 Hyundai Motor Company Hybrid intercooler system and control method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480439A (en) * 1981-01-16 1984-11-06 Nissan Motor Company, Limited Supply-air cooling system for an engine including a turbocharger
US4823868A (en) 1988-05-26 1989-04-25 Deere & Company Intercooler and method of assembling the same
FR2686655A1 (fr) * 1992-01-27 1993-07-30 Peugeot Dispositif d'admission d'air refroidi pour moteur a combustion interne de vehicule automobile equipe d'un systeme de refrigeration de son habitacle.
US5547019A (en) 1994-10-28 1996-08-20 Iacullo; Robert S. Thermoelectric intercooler cooling turbocharged air
EP1342893A2 (fr) * 2002-03-08 2003-09-10 Behr GmbH & Co. Dispositif de refroidissement de l'air suralimenté et procédé pour faire fonctionner un tel dispositif
US20050072169A1 (en) * 2003-10-01 2005-04-07 Tzu-Tang Lin Cooling system with refrigerant for air conditioning and lowering temperature of engine
DE102008028290A1 (de) * 2008-06-16 2009-12-17 Behr Gmbh & Co. Kg Einrichtung zur Kühlung eines Kühlmittels, Kreislauf zur Aufladung einer Brennkraftmaschine und Verfahren zum Kühlen eines zur Aufladung einer Brennkraftmaschine vorgesehenen im Wesentlichen gasförmigen Ladefluids
FR2944324A1 (fr) * 2009-04-10 2010-10-15 Peugeot Citroen Automobiles Sa Systeme d'echange de chaleur entre des gaz de suralimentation d'un moteur thermique et un fluide calorifique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2855605B1 (fr) * 2003-05-27 2007-03-23 Valeo Thermique Moteur Sa Echangeur de chaleur, en particulier refroidisseur d'air de suralimentation pour vehicules automobiles
SE532145C2 (sv) * 2007-03-13 2009-11-03 Titanx Engine Cooling Holding Laddluftkylare samt sätt att framställa denna

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480439A (en) * 1981-01-16 1984-11-06 Nissan Motor Company, Limited Supply-air cooling system for an engine including a turbocharger
US4823868A (en) 1988-05-26 1989-04-25 Deere & Company Intercooler and method of assembling the same
FR2686655A1 (fr) * 1992-01-27 1993-07-30 Peugeot Dispositif d'admission d'air refroidi pour moteur a combustion interne de vehicule automobile equipe d'un systeme de refrigeration de son habitacle.
US5547019A (en) 1994-10-28 1996-08-20 Iacullo; Robert S. Thermoelectric intercooler cooling turbocharged air
EP1342893A2 (fr) * 2002-03-08 2003-09-10 Behr GmbH & Co. Dispositif de refroidissement de l'air suralimenté et procédé pour faire fonctionner un tel dispositif
US20050072169A1 (en) * 2003-10-01 2005-04-07 Tzu-Tang Lin Cooling system with refrigerant for air conditioning and lowering temperature of engine
DE102008028290A1 (de) * 2008-06-16 2009-12-17 Behr Gmbh & Co. Kg Einrichtung zur Kühlung eines Kühlmittels, Kreislauf zur Aufladung einer Brennkraftmaschine und Verfahren zum Kühlen eines zur Aufladung einer Brennkraftmaschine vorgesehenen im Wesentlichen gasförmigen Ladefluids
FR2944324A1 (fr) * 2009-04-10 2010-10-15 Peugeot Citroen Automobiles Sa Systeme d'echange de chaleur entre des gaz de suralimentation d'un moteur thermique et un fluide calorifique

Also Published As

Publication number Publication date
SG11201502516RA (en) 2015-04-29
MY184031A (en) 2021-03-17
PH12015500797B1 (en) 2015-06-08
PH12015500797A1 (en) 2015-06-08
CN104769249A (zh) 2015-07-08

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