KR100757137B1 - A cooler for vehicle's fuel tank by using acoustic refrigeration - Google Patents

A cooler for vehicle's fuel tank by using acoustic refrigeration Download PDF

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KR100757137B1
KR100757137B1 KR1020060052027A KR20060052027A KR100757137B1 KR 100757137 B1 KR100757137 B1 KR 100757137B1 KR 1020060052027 A KR1020060052027 A KR 1020060052027A KR 20060052027 A KR20060052027 A KR 20060052027A KR 100757137 B1 KR100757137 B1 KR 100757137B1
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fuel tank
temperature
heat exchanger
acoustic
fuel
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KR1020060052027A
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Korean (ko)
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신준식
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현대자동차주식회사
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Priority to KR1020060052027A priority Critical patent/KR100757137B1/en
Priority to US11/540,813 priority patent/US20070284014A1/en
Priority to CNA2006101605346A priority patent/CN101085599A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0076—Details of the fuel feeding system related to the fuel tank
    • F02M37/0082—Devices inside the fuel tank other than fuel pumps or filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03072—Arrangements for reducing evaporation

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

A fuel tank cooler of a vehicle using an acoustic refrigeration method is provided to cool a fuel stored in a fuel tank and to reduce the generation of the evaporation gas by operating an acoustic cooler and cooling the fuel by a low temperature heat exchanger. Indoor temperature of a fuel tank(10) is measured by a temperature sensor(30) installed in the fuel tank to output a signal to a control part(40) and to converse the indoor temperature of the fuel tank by the signal of the temperature signal inputted from the control part. A cooling control signal is outputted to operate an acoustic cooler(50) if the temperature exceeds the reference value. The fuel is cooled by a low temperature heat exchanger(60) installed in the fuel tank. The evaporation gas is heated by a high temperature heat exchanger(70) mounted in the canister.

Description

음향 냉각 기법을 이용한 차량 연료 탱크 냉각 장치{A cooler for vehicle's fuel tank by using acoustic refrigeration} A cooler for vehicle's fuel tank by using acoustic refrigeration

도 1은 음향 냉각 기법을 설명하는 도면. 1 illustrates an acoustic cooling technique.

도 2는 본 발명에 의한 음향 냉각 기법을 이용한 차량 연료 탱크 냉각 장치의 일실시예의 구성을 나타내는 도면.2 is a view showing the configuration of an embodiment of a vehicle fuel tank cooling device using the acoustic cooling technique according to the present invention.

도 3은 본 발명의 사용에 의해 퍼지 유량 증가를 나타내는 그래프. 3 is a graph showing purge flow rate increase by use of the present invention.

- 도면의 주요부분에 대한 부호의 설명 --Explanation of symbols for the main parts of the drawings-

10 : 연료 탱크 20 : 캐니스터10: fuel tank 20: canister

30 : 온도 센서 40 : 제어부30: temperature sensor 40: control unit

50 : 음향 냉각기 60 : 저온 열교환기50: acoustic cooler 60: low temperature heat exchanger

70 : 고온 열교환기70: high temperature heat exchanger

본 발명은 차량의 연료 탱크에 관한 것으로서, 특히 차량의 음향 냉각 장치에 의해 낮은 온도를 갖게 된 냉매를 차량의 연료 탱크 측으로 보내어 연료 탱크에 저장되어 있는 연료가 냉각되도록 하여 증발 가스의 발생이 감소되도록 하는 음향 냉각 기법을 이용한 차량 연료 탱크 냉각 장치에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel tank of a vehicle, and in particular, sends a refrigerant having a low temperature by the acoustic cooling device of the vehicle to the fuel tank side of the vehicle to cool the fuel stored in the fuel tank so that the generation of evaporation gas is reduced. The present invention relates to a vehicle fuel tank cooling device using an acoustic cooling technique.

음향 냉각기법(acoustic refrigeration)의 기본구성은 도 1a에 나타낸 것과 같이 음파발생장치(스피커시스템)(1), 스택(2), 공명관(3), 고온 열교환기(4) 및 저온 열교환기(5) 등의 부품으로 구성된다. The basic configuration of the acoustic refrigeration is an acoustic generator (speaker system) 1, a stack 2, a resonance tube 3, a high temperature heat exchanger 4 and a low temperature heat exchanger 5 as shown in FIG. 1A. ), Etc.

음향 냉각기법의 기본원리는 전원(6)에서 음향발생장치(1)의 진동판을 진동시켜 공명관(3) 내부에 있는 기체 혹은 유체에 압력의 맥동을 야기시켜 정상파를 형성시킨다. 이 때 스피커시스템(1)에서 구동되는 음파의 주파수와 공명관의 길이 및 반경은 밀접한 관계를 가진다. The basic principle of the acoustic cooling method is to vibrate the diaphragm of the acoustic generator 1 in the power source 6 to cause pulsation of pressure in the gas or fluid inside the resonance tube 3 to form standing waves. At this time, the frequency of the sound wave driven in the speaker system 1 and the length and radius of the resonance tube have a close relationship.

공명관 내부의 정상파의 맥동은 관 내부 기체의 단열 압축 및 팽창에 따른 온도변화를 수반하게 된다. 이러한 온도변화 과정에서 기체가 보유하고 있는 열은 공명관(3) 내부에 존재하는 다공성 매질인 스택(2)으로 전달된다. 이때 사용되는 기체는 헬륨, 아르곤 또는 크세논과 같은 특수한 가스이다. The pulsation of standing waves inside the resonance tube is accompanied by temperature changes due to adiabatic compression and expansion of the gas inside the tube. The heat retained by the gas during this temperature change is transferred to the stack 2, which is a porous medium existing inside the resonance tube 3. The gas used at this time is a special gas such as helium, argon or xenon.

음향 냉각기법의 스택은 공명관내의 불활성 기체의 이동이 자유롭게 구형, 슬릿형, 원통형, 혹은 사각 기둥형의 다공성 매질로 구성된다. 또한 스택은 열전도가 낮은 매질로 구성되어 스택의 길이 방향으로 온도의 기울기를 가지게 된다. 따라서 스택은 기체로부터 열의 흡수와 방출을 통하여 열을 양쪽의 고온 열교환기(4)와 저온 열교환기(5)로 전달하는 역할을 하게 된다. The stack of the acoustic cooling technique consists of a porous medium of spherical, slit, cylindrical, or square column shape in which the inert gas in the resonance tube is free to move. In addition, the stack is composed of a low thermal conductivity medium to have a temperature gradient in the length direction of the stack. Therefore, the stack serves to transfer heat to both the high temperature heat exchanger 4 and the low temperature heat exchanger 5 through absorption and release of heat from the gas.

이렇게 전달된 고온 열교환기(4)의 열은 주위의 냉각수 등을 이용하여 식혀주게 되며, 저온 열교환기(5)에서는 물 또는 글리콜과 같은 냉각수를 순환시켜 공명관(3) 외부로 방출하여 냉각 효과를 얻게 된다. The heat of the high temperature heat exchanger (4) thus transferred is cooled by using the surrounding cooling water, etc. In the low temperature heat exchanger (5), cooling water such as water or glycol is circulated to be discharged to the outside of the resonance tube (3) to provide a cooling effect. You get

음향 냉각기법은 열전 냉각기법과 마찬가지로 압축식 냉각기법과 비교할 경우 냉매를 사용하지 않기 때문에 환경친화적이며, 압축기가 없어 각 부품의 유지비용이 작고 윤활유가 필요 없으며, 소음 및 진동이 작고, 미세한 온도 조절이 용이하며, 가동을 위한 소비전력이 작은 장점을 갖고 있다. Like the thermoelectric cooler method, the acoustic cooler method is environmentally friendly because it does not use refrigerant when compared to the compressed cooler method. Since there is no compressor, the maintenance cost of each part is small, no lubricating oil is required, noise and vibration are small, and fine temperature control is easy. It has the advantage of low power consumption for operation.

한편, 차량의 연료탱크 내의 연료의 온도가 상승하게 되면, 연료 가스가 발생하며, 이 연료 가스는 주로 탄화수소(HC)로 연료탱크 내부의 빈 공간을 다 채우고 나면, 연료탱크 밖으로 빠져나온다. On the other hand, when the temperature of the fuel in the fuel tank of the vehicle rises, fuel gas is generated, and the fuel gas exits the fuel tank after the empty space inside the fuel tank is filled with mainly hydrocarbon (HC).

현재의 자동차 배출가스 규제는 이렇게 차량 외부로 방출되는 탄화수소의 양도 엄격하게 제한하고 있다. 한편, 연료의 소모 측면에서도 연료 탱크에서의 연료 가스 방출은 제한되어야 하므로 차량에는 캐니스터(Canister)가 장착되어 있다. Current vehicle emissions regulations also severely limit the amount of hydrocarbons emitted outside the vehicle. On the other hand, the vehicle is equipped with a canister because the fuel gas discharge from the fuel tank should be limited in terms of fuel consumption.

이 캐니스터는 연료탱크에서 생성되는 연료 가스를 모아두는 저장소의 기능을 하며, 이렇게 모아진 연료 가스는 엔진이 작동할 때 적절한 시점에 엔진으로 보내져서 엔진에서 연소된다. The canister acts as a reservoir for collecting fuel gas from the fuel tank, which is then sent to the engine at the appropriate time when the engine is running and combusted in the engine.

고속 주행시 연료 온도 증가로 다량의 증발가스가 발생하여, 차량 주차 후 재 출발시 고농도 퍼지 가스 유입으로 인한 엔진 스톨과 같은 현상이 발생하는 문제점이 있으므로, 증발 가스의 발생을 억제할 필요성이 있었다. Since a large amount of boil-off gas is generated due to an increase in fuel temperature during high-speed driving, there is a problem that a phenomenon such as engine stall due to high concentration purge gas inflow occurs when the vehicle is restarted. Therefore, there is a need to suppress generation of the boil-off gas.

본 발명은 상기와 같은 문제점을 해결하고자 창안된 것으로서, 음향 냉각 장치에 의해 낮은 온도를 갖게 된 냉매를 차량의 연료 탱크 측으로 보내어 연료 탱크에 저장되어 있는 연료가 냉각되도록 하여 증발 가스의 발생이 감소되도록 하는 음 향 냉각 기법을 이용한 차량 연료 탱크 냉각 장치를 제공하는 것을 목적으로 한다. The present invention has been made to solve the above problems, by sending a refrigerant having a low temperature by the acoustic cooling device to the fuel tank side of the vehicle to cool the fuel stored in the fuel tank to reduce the generation of evaporated gas An object of the present invention is to provide a vehicle fuel tank cooling device using an acoustic cooling technique.

도 2는 본 발명에 의한 음향 냉각 기법을 이용한 차량 연료 탱크 냉각 장치의 일실시예의 구성을 나타내는 도면으로서, 스피커에서 발생된 음향에 의해 기제 매질의 진동 전달 방향에 따라 음원쪽으로의 열의 흡수와 방출이 이루어지도록 하는 고온 열교환기와 저온 열교환기를 통해 열교환이 이루어지도록 하는 음향 냉각 장치에 있어서, 연료 탱크(10)의 내부에 설치된 온도 센서(30)에 의해 연료 탱크의 내부 온도를 측정하여 해당하는 신호를 제어부(40)로 출력하고 제어부(40)에 입력된 상기 온도 센서(30)의 신호에 의해 연료 탱크(10) 내부의 온도를 환산하여 온도가 과다한 것으로 판단되면 냉각 제어 신호를 출력하여 음향 냉각기(50)가 동작되도록 하며 연료 탱크(10)의 내부에 설치된 저온 열교환기(60)에 의해 연료를 냉각하고 캐니스터(20)에 설치되는 고온 열교환기(70)에 의해 증발 가스가 가열되도록 구성되어 있음을 도시하고 있다. 2 is a view showing a configuration of an embodiment of a vehicle fuel tank cooling apparatus using an acoustic cooling technique according to the present invention, the absorption and release of heat toward the sound source according to the vibration transmission direction of the base medium by the sound generated from the speaker In the acoustic cooling device to perform heat exchange through the high temperature heat exchanger and the low temperature heat exchanger to be made, by measuring the internal temperature of the fuel tank by the temperature sensor 30 installed inside the fuel tank 10 to control the corresponding signal And outputs a cooling control signal when the temperature is determined to be excessive by converting the temperature inside the fuel tank 10 by the signal of the temperature sensor 30 input to the controller 40 and outputting the signal to the controller 40. ) Is operated and the fuel is cooled by the low temperature heat exchanger (60) installed inside the fuel tank (10) and installed in the canister (20). By turning on the heat exchanger 70 it is shown that is configured to heat the boil-off gas.

상기와 같이 구성된 본 발명의 실시예를 도면을 참조하여 설명하면 다음과 같다.When explaining the embodiment of the present invention configured as described above with reference to the drawings as follows.

차량의 연료 탱크(10)에 저장되어 있는 연료는 주위의 온도에 따라 연료의 증발이 발생하게 된다. 이때 주위의 온도가 높은 경우에는 연료의 증발량도 많아지게 되므로, 연료 탱크 내부의 온도를 측정하여 연료의 증발량을 환산할 수 있다. The fuel stored in the fuel tank 10 of the vehicle causes the fuel to evaporate according to the ambient temperature. At this time, when the ambient temperature is high, the amount of fuel evaporates also increases, so that the amount of fuel evaporated can be converted by measuring the temperature inside the fuel tank.

따라서, 연료 탱크(10)의 내부에 온도 센서(30)를 설치하여 연료 탱크(10) 내부의 온도를 측정한 후, 측정된 온도에 해당하는 신호를 출력하여 제어부(40)로 입력되도록 한다. Therefore, the temperature sensor 30 is installed inside the fuel tank 10 to measure the temperature inside the fuel tank 10, and then outputs a signal corresponding to the measured temperature to be input to the controller 40.

제어부(40)는 입력되는 온도 신호를 이용하여 연료 탱크(10) 내부의 온도가 일정 이상 상승되어 있는 것으로 판단되는 경우에는 냉각 제어 신호를 출력하도록 한다. The controller 40 outputs a cooling control signal when it is determined that the temperature inside the fuel tank 10 is raised by a predetermined level or more by using the input temperature signal.

제어부(40)에서 출력되는 냉각 제어 신호는 음향 냉각기(50)로 입력되어 음향 냉각기(50)의 동작이 개시되도록 한다. The cooling control signal output from the controller 40 is input to the acoustic cooler 50 to start the operation of the acoustic cooler 50.

우선, 음향 냉각기(50)의 스피커가 동작하여 음향이 발생되면 냉매로 사용되는 헬륨, 아르곤 또는 크세논과 같은 기체가 팽창된다. First, when the speaker of the acoustic cooler 50 operates to generate sound, a gas such as helium, argon, or xenon used as a refrigerant is expanded.

냉매가 팽창하면서 온도가 저하되고, 온도가 저하된 냉매는 연료 탱크(10)의 내부에 설치되어 있는 저온 열교환기(60)으로 유입되도록 한다. As the refrigerant expands, the temperature decreases, and the refrigerant having the lowered temperature flows into the low temperature heat exchanger 60 installed in the fuel tank 10.

저온 열교환기(60)에 유입된 냉매는 연료 탱크(10)의 내부 온도가 저하되도록 하여 연료의 증발량이 감소되도록 한 후, 유출된다. The refrigerant introduced into the low temperature heat exchanger 60 is discharged after the internal temperature of the fuel tank 10 is lowered to reduce the evaporation amount of the fuel.

냉매에 의해 연료 탱크(10)에 저장되어 있는 연료의 증발량이 감소되었으나, 증발이 완전히 멈춰지지 않고 감소되므로, 발생된 증발 가스는 이전의 기술과 동일하게 캐니스터(20)로 유출된다. Although the amount of evaporation of the fuel stored in the fuel tank 10 is reduced by the refrigerant, since the evaporation is reduced without stopping completely, the generated evaporated gas is discharged to the canister 20 as in the previous technique.

이때, 저온 열교환기(60)에서 연료의 냉각에 사용된 냉매는 온도가 상승되어 있으므로, 가열된 냉매는 음향 냉각기(50)로 보내지고, 열교환에 의해 고온 열교환기(70)로 유출되도록 한다. At this time, since the temperature of the refrigerant used for cooling the fuel in the low temperature heat exchanger 60 is elevated, the heated refrigerant is sent to the acoustic cooler 50 and is allowed to flow out to the high temperature heat exchanger 70 by heat exchange.

고온 열교환기(70)는 캐니스터(20)의 표면에 설치되어 있어, 가열된 냉매를 이용하여 캐니스터(20) 내부의 증발 가스의 온도가 상승되도록 한다. The high temperature heat exchanger 70 is installed on the surface of the canister 20 so that the temperature of the evaporated gas inside the canister 20 is increased by using the heated refrigerant.

캐니스터(20) 내부의 증발 가스 온도가 상승된 상태에서 차량 엔진으로 공급되면, 도 3에 도시되어 있는 바와 같이 엔진의 퍼지량이 증대되어 엔진 동작에 도움을 주게 됨을 알 수 있다. When the evaporative gas temperature inside the canister 20 is increased to the vehicle engine, as shown in FIG. 3, the amount of purge of the engine is increased to assist the engine operation.

고온 열교환기(70)로 유입되어 캐니스터(20) 내부의 증발 가스 온도가 상승되도록 한 냉매는 음향 냉각기(50)로 순환된 후 다시 냉각되고, 냉각이 이루어진 후에는 저온 열교환기(60)로 보내어져 연료가 냉각되도록 한다 .The refrigerant introduced into the high temperature heat exchanger 70 to increase the temperature of the evaporated gas inside the canister 20 is circulated to the acoustic cooler 50 and then cooled again, and after cooling, the refrigerant is sent to the low temperature heat exchanger 60. To allow fuel to cool.

이상에서는 본 발명을 특정의 바람직한 실시예에 대하여 도시하고 설명하였으나, 본 발명은 이러한 실시예에 한정되지 않으며, 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 특허청구범위에서 청구하는 본 발명의 기술적 사상을 벗어나지 않는 범위내에서 실시할 수 있는 다양한 형태의 실시예들을 모두 포함한다.While the invention has been shown and described with respect to certain preferred embodiments thereof, the invention is not limited to these embodiments, and has been claimed by those of ordinary skill in the art to which the invention pertains. It includes all the various forms of embodiments that can be carried out without departing from the spirit.

상기와 같이 구성된 본 발명은, 음향 냉각 장치에 의해 낮은 온도를 갖게 된 냉매를 차량의 연료 탱크 측으로 보내어 연료 탱크에 저장되어 있는 연료가 냉각되도록 하여 증발 가스의 발생이 감소되도록 하고 캐니스터 내부의 증발 가스는 가열하여 퍼지량이 증대되도록 하는 효과가 있다. The present invention configured as described above, the refrigerant having a low temperature by the acoustic cooling device to the fuel tank side of the vehicle to cool the fuel stored in the fuel tank to reduce the generation of evaporated gas and the evaporation gas inside the canister Has the effect of increasing the purge amount by heating.

Claims (1)

스피커에서 발생된 음향에 의해 기제 매질의 진동 전달 방향에 따라 음원쪽으로의 열의 흡수와 방출이 이루어지도록 하는 고온 열교환기와 저온 열교환기를 통해 열교환이 이루어지도록 하는 음향 냉각 장치에 있어서, In the acoustic cooling device for heat exchange through the high temperature heat exchanger and the low temperature heat exchanger to allow the sound generated from the speaker to absorb and release heat toward the sound source in accordance with the vibration transmission direction of the base medium, 연료 탱크(10)의 내부에 설치된 온도 센서(30)에 의해 연료 탱크의 내부 온도를 측정하여 해당하는 신호를 제어부(40)로 출력하고 제어부(40)에 입력된 상기 온도 센서(30)의 신호에 의해 연료 탱크(10) 내부의 온도를 환산하여 온도가 과다한 것으로 판단되면 냉각 제어 신호를 출력하여 음향 냉각기(50)가 동작되도록 하며 연료 탱크(10)의 내부에 설치된 저온 열교환기(60)에 의해 연료를 냉각하고 캐니스터(20)에 설치되는 고온 열교환기(70)에 의해 증발 가스가 가열되도록 구성되는 것을 특징으로 하는 음향 냉각 기법을 이용한 차량 연료 탱크 냉각 장치.The internal temperature of the fuel tank is measured by the temperature sensor 30 installed in the fuel tank 10, and a corresponding signal is output to the controller 40, and the signal of the temperature sensor 30 input to the controller 40 is measured. When it is determined that the temperature is excessive by converting the temperature inside the fuel tank 10 by outputting a cooling control signal to operate the acoustic cooler 50 and to the low temperature heat exchanger 60 installed inside the fuel tank 10. By cooling the fuel by the high-temperature heat exchanger (70) installed in the canister (20) is a vehicle fuel tank cooling device using an acoustic cooling technique, characterized in that configured to be heated.
KR1020060052027A 2006-06-09 2006-06-09 A cooler for vehicle's fuel tank by using acoustic refrigeration KR100757137B1 (en)

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KR1020060052027A KR100757137B1 (en) 2006-06-09 2006-06-09 A cooler for vehicle's fuel tank by using acoustic refrigeration
US11/540,813 US20070284014A1 (en) 2006-06-09 2006-09-29 Temperature control system for a fuel tank and a canister of a vehicle using an acoustic refrigerator
CNA2006101605346A CN101085599A (en) 2006-06-09 2006-11-28 Temperature control system for a fuel tank and a canister of a vehicle using an acoustic refrigerator

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