KR900002740Y1 - Automatic control device of fuel injection pump - Google Patents

Automatic control device of fuel injection pump Download PDF

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Publication number
KR900002740Y1
KR900002740Y1 KR2019870012740U KR870012740U KR900002740Y1 KR 900002740 Y1 KR900002740 Y1 KR 900002740Y1 KR 2019870012740 U KR2019870012740 U KR 2019870012740U KR 870012740 U KR870012740 U KR 870012740U KR 900002740 Y1 KR900002740 Y1 KR 900002740Y1
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KR
South Korea
Prior art keywords
transistor
base
collector
thermistor
fuel injection
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KR2019870012740U
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Korean (ko)
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KR890002530U (en
Inventor
김준호
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삼성중공업주식회사
최관식
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Priority to KR2019870012740U priority Critical patent/KR900002740Y1/en
Publication of KR890002530U publication Critical patent/KR890002530U/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
    • B60K15/077—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
    • 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
    • B60K2015/03243—Fuel tanks characterised by special pumps, the mounting thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/40—Special vehicles
    • B60Y2200/41—Construction vehicles, e.g. graders, excavators

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

내용 없음.No content.

Description

중장비 연료주입 펌프용 자동조정장치Heavy Duty Fuel Injection Pump Automatic Regulator

제 1 도는 본 고안을 설명하기 위한 연료탱크의 개략도.1 is a schematic view of a fuel tank for explaining the present invention.

제 2 도는 본 고안의 회로도.2 is a circuit diagram of the present invention.

본 고안은 중장비에 적용되는 연료펌프를 작동할때 연료탱크내의 유량 상한선을 감지하여 자동적으로 펌프의 구동을 중지시키는 중장비 연료 주입펌프용 자동 조정장치에 관한 것이다.The present invention relates to an automatic regulator for a heavy-duty fuel injection pump that detects an upper flow rate limit in a fuel tank and automatically stops driving the pump when operating a fuel pump applied to heavy-duty equipment.

종래에 있어서는 연료를 충전시킬때 펌프작용으로 연료탱크에 부족하게 채우거나, 넘쳐흐를때까지 충전될 염려가 있고, 따라서 연료량을 확인하면서 펌프를 작동시켜야 하므로 탱크에 사이트 게이지(SIGHT GAUGE)가 필수적으로 필요한 결함이 지적되고 있다.In the prior art, when filling the fuel, there is a concern that the fuel tank may be insufficiently filled or filled until it overflows. Therefore, the sight gauge is essential for the tank because the pump must be operated while checking the fuel amount. Necessary defects are pointed out.

본 고안은 상기와 같은 결함을 해소하기 위하여, 안출한 것으로, 연료 탱크(T)내상방에 서미스터(TH)를 설치하고, 서미스터(TH)일측에 저항(R1)(R2)을 연결하여 OP앰프(OP)이 반전입력단자(-)에 접속하고 타측 비반전 입력단자(+)측에 저항(R3)을 연결한 다음, OP앰프(OP)의 출력단에 트랜지스터(TR1)의 베이스를 연결하고, 이의 에미터 및 콜렉터 측 각각에 트랜지스터(R2)의 콜렉터 및 트랜지스터(TR3)의 베이스를 각각 접속하며, 상기 트랜지스터(TR2)의 베이스와 트랜지스터(TR3)의 콜렉터측 사이에 트랜지스터(TR4)의 베이스를 연결하되, 트랜지스터(TR4)의 콜렉터측 사이에 트랜지스터(TR4)의 베이스를 연결하되, 트랜지스터(TR4)의 콜렉터측에 릴레이(Ry)를 연결하고, 릴레이 접점(X1)에는 모우터 구동표시 발광다이오드(LED)를, 릴레이 접점(X2)에는 모우터(M)을 각각 접속하여서된 것이다.The present invention is designed to solve the above-described defects, by installing a thermistor (TH) above the fuel tank (T), by connecting a resistor (R 1 ) (R 2 ) to one side of the thermistor (TH) The OP amplifier OP is connected to the inverting input terminal (-), the resistor R 3 is connected to the other non-inverting input terminal (+) side, and the base of the transistor TR 1 is connected to the output terminal of the OP amplifier OP. Is connected to each of its emitter and collector sides, and the collector of transistor R 2 and the base of transistor TR 3 are respectively connected between the base of transistor TR 2 and the collector side of transistor TR 3 . Connect the base of transistor TR 4 to the base of transistor TR 4 between the collector side of transistor TR 4 , and connect the relay Ry to the collector side of transistor TR 4 , the relay contact point (X 1), the Motor driving display light-emitting diode (LED), the relay contact point (X 2) all It is respectively connected to the emitter of hayeoseo (M).

도면중 R4는 저항(R3)와 직렬 연결된 분압저항, R5, R6은 OP앰프(OP)출력단과 트랜지스터(TR1)사이에 개재된 분배저항, R7, R10은 트랜지스터(TR1)의 콜렉터 및 에미터측 저항, R8, R9은 트랜지스터(TR1)의 에미터 측에 접속된 보호저항, R11, R12는 트랜지스터(TR2)의 베이스에 접속된 분배저항, R13은 트랜지스터(TR4)측의 베이스단저항, R14는모우터 구동표시 발광 다이오드(LED)용 보호저항, C는 콘덴서, D는 다이오드, SW는 조작스위치, VCC는 전원, P는 펌프, 2는 연료 주입구, T1은 유량상한선, F는 레벨센더(FUEL, LEVEL SENDER)이다.In the figure, R 4 is a voltage divider connected in series with a resistor (R 3 ), R 5 , R 6 is a distribution resistor interposed between the OP amplifier (OP) output terminal and transistor (TR 1 ), R 7 , R 10 is a transistor (TR) 1 ) collector and emitter side resistors, R 8 , R 9 are protection resistors connected to the emitter side of transistor TR 1 , R 11 , R 12 are distribution resistors connected to the base of transistor TR 2 , R 13 is a base stage resistor on the transistor (TR 4 ) side, R 14 is a protection resistor for a motor driving display light emitting diode (LED), C is a capacitor, D is a diode, SW is an operation switch, VCC is a power supply, P is a pump, 2 is the fuel inlet, T 1 is the upper flow limit, F is the level sender (FUEL, LEVEL SENDER).

이상과 같이 구성된 본 고안의 작용효과는 다음과 같다.Effects of the present invention configured as described above are as follows.

최초연료가 부족하여 조작스위치(SW)를 ON 시키면 서미스터(Th)가 탱크(T)내상방의 공기중에 노출되어 있으므로, 저항(R1)과 서미스터(Th)를 통해 전류가 흐르게 된다. 이때 서미스터(Th) 양단에 걸리는 접압과 OP 앰프(OP)의 비반전 입력단자(+)측에 기준전압을 비교하여 상기 서미스터(Th)측의 전압이 낮아질 경우에 는 OP 앰프(OP)의 출력단에 출력신호가 발생되게 되는데 상기와 같이 준전압보다 서미스터(Th)가 공기중에 노출되어 있으므로 OP 앰프(OP)이 출력단에 출력신호가 발생되어 트랜지스터(TR1)의 베이스에 인가하게 되어 트랜지스터(TR3)가 도통하게 되어 트랜지스터(TR1)의 베이스측 전류가 더욱 많이 흐르게 되므로서 트랜지스터(TR2)의 콜렉터측 전류가 증대되어 트랜지스터(TR3)의 콜렉터측의 전류가 트랜지스터(TR4)에 베이스측에 입력되어 트랜지스터(TR4)가 도통되어진다.When the operation switch SW is turned on because the initial fuel is insufficient, the thermistor Th is exposed to the air above the tank T, so that current flows through the resistor R 1 and the thermistor Th. At this time, the voltage across the thermistor (Th) is lowered by comparing the voltage across the thermistor (Th) with the reference voltage on the non-inverting input terminal (+) of the op amp (OP). The output signal is generated in the air, but since the thermistor Th is exposed to the air rather than the quasi-voltage as described above, the OP amplifier OP generates an output signal at the output terminal and applies the output signal to the base of the transistor TR 1 . 3 ) becomes conductive so that the base side current of the transistor TR 1 flows more, so that the collector side current of the transistor TR 2 increases so that the current on the collector side of the transistor TR 3 flows to the transistor TR 4 . Transistor TR 4 is turned on at the base side.

따라서, 릴레이(Ry)가 여자되고, 이의 접점(X1)(X2)가 온되어 모우터(M)가 작동됨과 동시에 발광다이오드(LED)가 점등하게 된다. 이와같이 모우터(M)가 작동되어 펌프(P)가 구동되면 유량이 탱크(T)내에서 점차 증가하게 되고, 서미스터(Th)가 유중에 잠기기 시작하여 유량 상한선(T1)에 연료가 도달되며, 이때 서미스터(Th)양단의 전압이 점차 상승하게 되어 OP 앰프(OP)이 출력단에는 트랜지스터(TR1)를 도통할 출력 신호가 발생되지 않는다.Accordingly, the relay Ry is excited and its contact point X 1 (X 2 ) is turned on so that the motor M is activated and the light emitting diode LED is turned on. In this way, when the motor M is operated and the pump P is driven, the flow rate gradually increases in the tank T, and the thermistor Th starts to be submerged in oil so that fuel reaches the upper flow limit T 1 . At this time, the voltage across the thermistor Th gradually increases, so that the output signal for the OP amplifier OP to conduct the transistor TR 1 is not generated at the output terminal.

따라서 모우터(M)이 가동은 중지되고 펌프(p)가 정지되게 된다.Therefore, the motor M is stopped and the pump p is stopped.

이상과 같이 본 고안은 중장비에 적용되는 펌프를 작동시켜 연료를 충전시킬때 연료탱크 내의 유량상한선에 도달했을때 자동적으로 펌프의 가동을 중지시켜줌으로서 기름의 낭비를 없애고 관측 게이지등이 필요없는 등 유용하고도 실용적인 고안이다.As described above, the present invention operates when the pump applied to heavy equipment is filled with fuel, and stops the operation of the pump automatically when the upper limit of the flow rate in the fuel tank is reached. And practical design.

Claims (1)

연료 탱크(T)내상방에 서미스터(TH)를 설치하고, 서미스터(TH)일측에 저항(R1)(R2)을 연결하여 OP앰프(OP)이 반전입력단자(-)에 접속하고 타측 비반전 입력단자(+)측에 저항(R3)을 연결한 다음, OP앰프(OP)의 출력단에 트랜지스터(TR1)의 베이스를 연결하고, 이의 에미터 및 콜렉터 측 각각에 트랜지스터(R2)의 콜렉터 및 트랜지스터(TR3)의 베이스를 각각 접속하며, 상기 트랜지스터(TR2)의 베이스와 트랜지스터(TR3)의 콜렉터측 사이에 트랜지스터(TR4)의 베이스를 연결하되, 트랜지스터(TR4)의 콜렉터측 사이에 트랜지스터(TR4)의 베이스를 연결하되, 트랜지스터(TR4)의 콜렉터측에 릴레이(Ry)를 연결하고, 릴레이 접점(X1)에는 모우터 구동표시 발광다이오드(LED)를, 릴레이 접점(X2)에는 모우터(M)을 각각 접속하여서된 중장비 연료주입 펌프용 자동조정장치.The thermistor TH is installed above the fuel tank T, and the resistor R 1 and R 2 are connected to one side of the thermistor TH so that the OP amplifier OP is connected to the inverting input terminal (-). The resistor R 3 is connected to the non-inverting input terminal (+) side, and then the base of the transistor TR 1 is connected to the output terminal of the OP amplifier OP, and the transistor R 2 is connected to the emitter and collector sides thereof. ) and respectively connected to the base of the collector, and the transistor (TR 3), but connected to the base of the transistor (TR 4) between the collector side of the base from the transistor (TR 3) of the transistor (TR 2), the transistor (TR 4 The base of the transistor TR 4 is connected between the collector sides of the circuit), the relay Ry is connected to the collector side of the transistor TR 4 , and the motor contact display light emitting diode LED is connected to the relay contact X 1 . a relay contact (X 2), the Motor automatically jojeongjang for a heavy-duty fuel injection pump hayeoseo respectively connected to (M) .
KR2019870012740U 1987-07-31 1987-07-31 Automatic control device of fuel injection pump KR900002740Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870012740U KR900002740Y1 (en) 1987-07-31 1987-07-31 Automatic control device of fuel injection pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870012740U KR900002740Y1 (en) 1987-07-31 1987-07-31 Automatic control device of fuel injection pump

Publications (2)

Publication Number Publication Date
KR890002530U KR890002530U (en) 1989-04-06
KR900002740Y1 true KR900002740Y1 (en) 1990-03-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870012740U KR900002740Y1 (en) 1987-07-31 1987-07-31 Automatic control device of fuel injection pump

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KR890002530U (en) 1989-04-06

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