KR20120136943A - Heater of fuel filter for diesel engine - Google Patents

Heater of fuel filter for diesel engine Download PDF

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Publication number
KR20120136943A
KR20120136943A KR1020110056169A KR20110056169A KR20120136943A KR 20120136943 A KR20120136943 A KR 20120136943A KR 1020110056169 A KR1020110056169 A KR 1020110056169A KR 20110056169 A KR20110056169 A KR 20110056169A KR 20120136943 A KR20120136943 A KR 20120136943A
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KR
South Korea
Prior art keywords
fuel
temperature sensor
heater
fuel filter
diesel engine
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KR1020110056169A
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Korean (ko)
Inventor
서성교
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현대자동차주식회사
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Priority to KR1020110056169A priority Critical patent/KR20120136943A/en
Publication of KR20120136943A publication Critical patent/KR20120136943A/en

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    • 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
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/30—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by heating means
    • 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
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
    • F02M31/125—Fuel
    • 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
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/18—Heating or cooling the filters
    • 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
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M2037/085—Electric circuits therefor

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

PURPOSE: A device for heating a fuel filter in a diesel engine is provided to prevent the damages to an injector as precipitates are not generated under sub-zero temperature. CONSTITUTION: A device for heating a fuel filter in a diesel engine comprises a heater(100), a fuel temperature sensor(105), an air temperature sensor(106). The heater is installed in a fuel filter. The heater comprises a heating wire installed in the fuel filter. The fuel temperature sensor is installed in the fuel filter, and measured the temperature of fuel. The air temperature sensor measures the outside temperature. The fuel temperature sensor and air temperature sensor are connected to a control unit. The control unit is connected to a relay which supplies power to the heater. The control unit operates the relay by receiving the temperatures of the fuel temperature sensor and air temperature sensor. [Reference numerals] (105) Fuel temperature sensor; (106) Air temperature sensor

Description

디젤엔진의 연료필터 가열장치{HEATER OF FUEL FILTER FOR DIESEL ENGINE}Fuel filter heating device of diesel engine {HEATER OF FUEL FILTER FOR DIESEL ENGINE}

본 발명은 디젤엔진의 연료필터 가열장치에 관한 것으로서, 보다 상세하게는 배터리 연료의 이물질을 걸러내는 필터의 내부를 온도에 따라 가열할 수 있는 디젤엔진의 연료필터 가열장치에 관한 것이다.The present invention relates to a fuel filter heating device for a diesel engine, and more particularly, to a fuel filter heating device for a diesel engine capable of heating an interior of a filter for filtering foreign substances of a battery fuel according to temperature.

차량의 연료 탱크에는 탱크로부터 엔진의 인젝터 측으로 연료를 송출하는 연료펌프 모듈이 설치된다.The fuel tank of the vehicle is provided with a fuel pump module for delivering fuel from the tank to the injector side of the engine.

연료펌프 모듈은 펌프를 가동시키는 연료펌프 모터, 탱크로부터 흡입되는 연료를 정제하는 필터부, 연료펌프 모터와 필터부가 내부에 설치되고 탱크에 고정되는 레저버 컵(Reservoir Cup), 및 연료펌프 모터를 레저버 컵에 고정시키는 브라켓을 포함한다.The fuel pump module includes a fuel pump motor for operating a pump, a filter unit for purifying fuel sucked from a tank, a reservoir cup in which the fuel pump motor and the filter unit are installed and fixed to the tank, and a fuel pump motor. And a bracket secured to the reservoir cup.

디젤엔진은 경유와 같이 휘발유보다 점도가 높은 연료를 사용한다. 디젤엔진에 사용되는 연료는 온도가 영하로 떨어지는 경우, 빙결되어 파라핀과 같은 석출 물질이 생성된다.Diesel engines use fuels with higher viscosity than gasoline, such as diesel. The fuel used in diesel engines is frozen when the temperature drops below zero to produce precipitated materials such as paraffin.

연료의 석출물질은 필터를 막히게 하여 연료의 송출을 어렵게 하고, 고압에서 작동되는 인젝터를 파손시켜 시동불량과 같은 문제를 일으킬 수 있었다.Precipitating material of the fuel clogged the filter, making it difficult to deliver the fuel, and damage the injector operated at high pressure could cause problems such as starting failure.

본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 영하의 온도에서 디젤엔진의 연료 필터에 대한 석출 물질의 생성을 방지하여 엔진의 시동불량이나 인젝터의 파손을 방지할 수 있는 디젤엔진의 연료필터 가열장치를 제공함에 그 목적이 있다.The present invention has been made to solve the problems described above, the diesel engine that can prevent the start-up of the engine or breakage of the injector to prevent the generation of precipitated material for the fuel filter of the diesel engine at sub-zero temperature It is an object to provide a fuel filter heating device.

상기한 바와 같은 목적을 달성하기 위한 본 발명에 따른 디젤엔진의 연료필터 가열장치는 연료필터에 설치되는 히터, 연료필터에 설치되어 연료의 온도를 감지하는 연료온도센서, 및 차량 외부의 온도를 감지하는 외기온도센서를 포함할 수 있다.Fuel filter heating device for a diesel engine according to the present invention for achieving the above object is a heater installed on the fuel filter, a fuel temperature sensor installed on the fuel filter for detecting the temperature of the fuel, and the temperature outside the vehicle It may include an outside temperature sensor.

상기 히터는 상기 연료필터의 내부에 설치되는 열선을 포함할 수 있다.The heater may include a heating wire installed inside the fuel filter.

상기 연료온도센서와 상기 외기온도센서는 제어부에 연결되고, 상기 제어부는 상기 히터에 전원을 공급하는 릴레이에 연결되며, 상기 제어부는 상기 연료온도센서와 상기 외기온도센서의 온도를 수집하여 상기 릴레이를 작동시킬 수 있다.The fuel temperature sensor and the outside temperature sensor is connected to a control unit, the control unit is connected to a relay for supplying power to the heater, the control unit collects the temperature of the fuel temperature sensor and the outside temperature sensor to the relay It can work.

상기 제어부는 점화 키가 ON상태에서 상기 연료온도센서와 상기 외기온도센서의 온도를 수집하는 차량의 ECU일 수 있다.The control unit may be an ECU of a vehicle collecting the temperature of the fuel temperature sensor and the outside air temperature sensor when the ignition key is turned on.

상기 제어부는 수집된 연료 온도 O℃ 이하 또는 외기 온도 3 ℃ 이하의 조건 중 적어도 하나를 만족할 때, 상기 히터의 작동을 ON 또는OFF 할 수 있다.The control unit may turn on or off the operation of the heater when at least one of the collected fuel temperature of 0 ° C. or less or outside temperature 3 ° C. or less is satisfied.

상기 제어부는 수집된 연료 온도가 5℃ 이상 또는 외기 온도가 8 ℃ 이상의 조건 중 적어도 하나를 만족할 때, 상기 히터의 작동을 ON 또는 OFF 할 수 있다.The controller may turn on or off the operation of the heater when the collected fuel temperature satisfies at least one of the conditions of 5 ° C. or more or the outdoor temperature is 8 ° C. or more.

상기와 같은 본 발명은, 영하의 온도에서 디젤엔진의 연료 필터에 대한 석출 물질의 생성을 방지하여 연료필터의 막힘을 방지함으로써 엔진의 시동불량을 해결하고, 인젝터의 파손을 방지할 수 있는 효과를 얻을 수 있다.The present invention as described above, by preventing the generation of precipitated material to the fuel filter of the diesel engine at sub-zero temperature to prevent clogging of the fuel filter to solve the engine start failure, and to prevent the damage of the injector You can get it.

또한, ECU가 히터를 직접적으로 제어하고, ECU 소프트웨어의 수정으로 히터 작동 조건에 대한 설정 값을 자유롭게 변경할 수 있어 차량의 주행환경에 맞게 히터 작동 조건의 보정이 용이하다.In addition, the ECU directly controls the heater, and by modifying the ECU software, the setting value of the heater operating condition can be freely changed, thereby easily correcting the heater operating condition according to the driving environment of the vehicle.

또한, 기존의 서모 스위치 제어방식이 연료필터 내부에 서모 스위치가 존재함으로 인해 실제 중요한 연료탱크의 연료 상태에 대한 제어가 어려우나 대기 온도 조건을 추가하여 연료탱크의 연료 상태에 대한 제어가 가능하다.In addition, the conventional thermo switch control method is difficult to control the fuel state of the fuel tank, which is really important due to the presence of the thermo switch inside the fuel filter, it is possible to control the fuel state of the fuel tank by adding the atmospheric temperature conditions.

또한, 두 가지 센서가 적용되어 두 가지 센서에 의한 제어가 가능하므로 작동 조건의 상호 보완이 가능하고 센서 하나가 고장 나더라도 나머지 센서로 제어가 가능하다.In addition, two sensors can be applied to control by two sensors can be complementary to the operating conditions, even if one sensor can be controlled by the remaining sensor.

또한, 소모품인 연료필터에서 서모 스위치를 삭제 함으로써 연료필터 교환에 따른 비용 부담을 경감시킬 수 있다.In addition, by removing the thermoswitch from the fuel filter which is a consumable, it is possible to reduce the cost burden of the fuel filter replacement.

또한, 연료필터에 설치된 히터의 작동이 ECU에 의해 스캔가능하므로 작동의 기록이나 경과를 정확하게 파악할 수 있어 차량의 주행환경에 맞게 히터의 작동 조건을 최적화할 수 있다.In addition, since the operation of the heater installed in the fuel filter can be scanned by the ECU, it is possible to accurately grasp the recording and the progress of the operation, thereby optimizing the operating conditions of the heater according to the driving environment of the vehicle.

도 1은 본 발명의 일 실시예에 따른 디젤엔진의 연료필터 가열장치의 개략적인구성도이다.1 is a schematic configuration diagram of a fuel filter heating apparatus of a diesel engine according to an embodiment of the present invention.

이하, 도 1의 도면부호를 참조하여 실시예를 설명한다.Hereinafter, an embodiment will be described with reference to the reference numerals of FIG. 1.

도 1에 도시된 바와 같이, 본 발명의 일 실시예에 따른 디젤엔진의 연료필터 가열장치는 연료필터에 설치되는 히터(100), 연료필터에 설치되어 연료의 온도를 감지하는 연료온도센서(105), 및 차량 외부의 온도를 감지하는 외기온도센서(106)를 포함할 수 있다.As shown in FIG. 1, a fuel filter heating apparatus of a diesel engine according to an embodiment of the present invention includes a heater 100 installed in a fuel filter, and a fuel temperature sensor 105 installed in the fuel filter to detect a temperature of fuel. ), And an outside temperature sensor 106 for sensing a temperature outside the vehicle.

히터(100)는 연료필터의 내부에 설치되는 열선(미도시)을 포함할 수 있다. 히터(100)는 도시하지는 않았으나, 열선 외에 열선의 과부하를 방지하는 퓨즈(131) 또는 차단 스위치(112) 등을 포함할 수 있다. 또한, 히터(100)는 열선과 별도로 또는 열선을 대체하여 탄소판이 인쇄된 플렉시블 패널(미도시) 등을 포함할 수 있다. 플렉시블 패널은 연료필터의 외부를 감싸도록 적용될 수 있다.The heater 100 may include a heating wire (not shown) installed in the fuel filter. Although not shown, the heater 100 may include a fuse 131 or a blocking switch 112 to prevent overload of the heating wire in addition to the heating wire. In addition, the heater 100 may include a flexible panel (not shown) on which a carbon plate is printed separately from or instead of a hot wire. The flexible panel may be applied to surround the outside of the fuel filter.

연료온도센서(105)와 외기온도센서(106)는 제어부에 연결되고, 제어부는 히터(100)에 전원을 공급하는 릴레이(110)에 연결되며, 제어부는 연료온도센서(105)와 외기온도센서(106)의 온도를 수집하여 릴레이(110)를 작동시킬 수 있다. 이때, 제어부는 점화 키가 ON상태에서 연료온도센서(105)와 외기온도센서(106)의 온도를 수집하는 차량의 ECU(115)이다.Fuel temperature sensor 105 and the outside temperature sensor 106 is connected to the control unit, the control unit is connected to the relay 110 for supplying power to the heater 100, the control unit is the fuel temperature sensor 105 and the outside temperature sensor The temperature of 106 may be collected to actuate the relay 110. At this time, the control unit is the ECU 115 of the vehicle collecting the temperature of the fuel temperature sensor 105 and the outside temperature sensor 106 when the ignition key is ON.

차량의 점화 키(통상적인 차량의 시동 키에 해당함)가 START 전의 ON 상태일 때, 히터(100)에 전원을 공급할 수 있는 IG2 라인(120)에 전기가 공급될 수 있다. ECU(115)는 연료온도센서(105)와 외기온도센서(106)의 온도를 수집한 후, 연료의 파라핀 등이 석출될 수 있는 온도에 이를 때는 IG2 라인(120)을 히터(100)에 연결하여 배터리(125)의 전원을 히터(100)에 공급할 수 있다.When the ignition key of the vehicle (corresponding to a normal vehicle start key) is in an ON state before START, electricity may be supplied to the IG2 line 120 capable of supplying power to the heater 100. The ECU 115 collects the temperatures of the fuel temperature sensor 105 and the outside air temperature sensor 106, and then connects the IG2 line 120 to the heater 100 when the temperature of the fuel paraffin may be deposited. The power of the battery 125 can be supplied to the heater 100.

릴레이(110)는 IG2 라인(120)에 연결된 솔레노이드(111)를 포함하여, IG2 라인(120)에 전기가 공급될 때 솔레노이드(111)에 의해 스위치(112)가 ON 작동될 수 있다. IG2 라인(120)과 솔레노이드(111) 및 배터리(125)와 스위치(112) 사이에는 과부하를 방지할 수 있는 퓨즈(131)가 각각 연결될 수 있다. 퓨즈(131)는 IG2 라인(120)과 배터리(125)의 전류에 따라 다른 용량이 선택될 수 있다.The relay 110 includes a solenoid 111 connected to the IG2 line 120 so that the switch 112 may be turned on by the solenoid 111 when electricity is supplied to the IG2 line 120. A fuse 131 may be connected between the IG2 line 120, the solenoid 111, the battery 125, and the switch 112 to prevent an overload. The fuse 131 may have a different capacity depending on the current of the IG2 line 120 and the battery 125.

ECU(115)가 릴레이(110)를 ON 작동시키는 조건은 연료온도센서(105)에 의해 수집된 연료 온도 O℃ 이하 또는 외기온도센서(106)에 의해 수집된 외기 온도 3 ℃ 이하이다. 릴레이(110)가 ON 상태에서 히터(100)가 작동될 수 있다.The condition under which the ECU 115 operates the relay 110 ON is below the fuel temperature O ° C collected by the fuel temperature sensor 105 or below the ambient temperature 3 ° C collected by the ambient temperature sensor 106. The heater 100 may be operated when the relay 110 is in an ON state.

ECU(115)가 릴레이(110)를 OFF 작동시키는 조건은 연료온도센서(105)에 의해 수집된 연료 온도가 5℃ 이상 또는 외기온도센서(106)에 의해 수집된 외기 온도가 8 ℃ 이상이다. 릴레이(110)가 OFF될 때, 배터리(125)의 전원이 차단되므로 히터(100)의 작동이 중단된다.The condition under which the ECU 115 operates the relay 110 in the OFF state is that the fuel temperature collected by the fuel temperature sensor 105 is 5 ° C or more, or the outside air temperature collected by the outside air temperature sensor 106 is 8 ° C or more. When the relay 110 is turned off, since the power of the battery 125 is cut off, the operation of the heater 100 is stopped.

이와 같이, ECU(115)가 연료온도센서(105)와 외기온도센서(106)의 온도를 모두 참고하므로 연료에 대한 온도 조건이 정확하게 파악되어 연료의 빙결을 보다 좀더 완전하게 방지할 수 있다.As such, since the ECU 115 refers to both the temperatures of the fuel temperature sensor 105 and the outside temperature sensor 106, the temperature conditions for the fuel can be accurately determined, thereby more completely preventing freezing of the fuel.

100: 히터
105: 연료온도센서
106: 외기온도센서
110: 릴레이
111: 솔레노이드
112: 스위치
115: ECU
120: IG2 라인
125: 배터리
131: 퓨즈100: heater
105: fuel temperature sensor
106: outside temperature sensor
110: relay
111: solenoid
112: switch
115: ECU
120: IG2 line
125: battery
131: fuse

Claims (6)

연료필터에 설치되는 히터;
연료필터에 설치되어 연료의 온도를 감지하는 연료온도센서; 및
차량 외부의 온도를 감지하는 외기온도센서를 포함하는 디젤엔진의 연료필터 가열장치.A heater installed in the fuel filter;
A fuel temperature sensor installed at the fuel filter to sense a temperature of the fuel; And
Fuel filter heating device for a diesel engine including an outside temperature sensor for sensing the temperature outside the vehicle. 제1항에 있어서,
상기 히터는 상기 연료필터의 내부에 설치되는 열선을 포함하는 것을 특징으로 하는 디젤엔진의 연료필터 가열장치.The method of claim 1,
The heater is a fuel filter heating device of a diesel engine, characterized in that it comprises a heating wire installed in the fuel filter. 제1항에 있어서,
상기 연료온도센서와 상기 외기온도센서는 제어부에 연결되고, 상기 제어부는 상기 히터에 전원을 공급하는 릴레이에 연결되며, 상기 제어부는 상기 연료온도센서와 상기 외기온도센서의 온도를 수집하여 상기 릴레이를 작동시키는 것을 특징으로 하는 디젤엔진의 연료필터 가열장치.The method of claim 1,
The fuel temperature sensor and the outside temperature sensor is connected to a control unit, the control unit is connected to a relay for supplying power to the heater, the control unit collects the temperature of the fuel temperature sensor and the outside temperature sensor to the relay Fuel filter heating device for a diesel engine, characterized in that the operation. 제3항에 있어서,
상기 제어부는 점화 키가 ON상태에서 상기 연료온도센서와 상기 외기온도센서의 온도를 수집하는 차량의 ECU인 것을 특징으로 하는 디젤엔진의 연료필터 가열장치.The method of claim 3,
The control unit is a fuel filter heating device for a diesel engine, characterized in that the ECU of the vehicle collecting the temperature of the fuel temperature sensor and the outside temperature sensor when the ignition key is ON. 제3항에 있어서,
상기 제어부는 수집된 연료 온도 O℃ 이하 또는 외기 온도 3 ℃ 이하의 조건 중 적어도 하나를 만족할 때, 상기 히터의 작동을 ON 또는OFF 하는 것을 특징으로 하는 디젤엔진의 연료필터 가열장치.The method of claim 3,
The control unit turns on or off the operation of the heater when the fuel satisfies at least one of the conditions of the collected fuel temperature O ℃ or less, outside temperature 3 ℃ or less, characterized in that the fuel filter heating device of the diesel engine. 제3항에 있어서,
상기 제어부는 수집된 연료 온도가 5℃ 이상 또는 외기 온도가 8 ℃ 이상의 조건 중 적어도 하나를 만족할 때, 상기 히터의 작동을 ON 또는 OFF 하는 것을 특징으로 하는 디젤엔진의 연료필터 가열장치.
The method of claim 3,
And the control unit turns on or off the operation of the heater when the collected fuel temperature satisfies at least one of a condition of 5 ° C. or more or an outside temperature of 8 ° C. or more.
KR1020110056169A 2011-06-10 2011-06-10 Heater of fuel filter for diesel engine KR20120136943A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101599152B1 (en) 2014-11-03 2016-03-02 현담산업 주식회사 Fuel apparatus having heater
KR20160136022A (en) * 2015-05-19 2016-11-29 공주대학교 산학협력단 Heating apparatus and method for fuel filter
KR20160147189A (en) 2015-06-12 2016-12-22 현대자동차주식회사 System and method for feedback control of heater of fuel filter
KR101704248B1 (en) * 2015-08-25 2017-02-07 현대자동차주식회사 Device and method for controlling heater of fuel filter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101599152B1 (en) 2014-11-03 2016-03-02 현담산업 주식회사 Fuel apparatus having heater
KR20160136022A (en) * 2015-05-19 2016-11-29 공주대학교 산학협력단 Heating apparatus and method for fuel filter
KR20160147189A (en) 2015-06-12 2016-12-22 현대자동차주식회사 System and method for feedback control of heater of fuel filter
KR101704248B1 (en) * 2015-08-25 2017-02-07 현대자동차주식회사 Device and method for controlling heater of fuel filter
US9879641B2 (en) 2015-08-25 2018-01-30 Hyundai Motor Company Heater control apparatus and heater control method of fuel filter for vehicle

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