KR20040106046A - Gas engine heat pump - Google Patents

Gas engine heat pump Download PDF

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Publication number
KR20040106046A
KR20040106046A KR1020030037227A KR20030037227A KR20040106046A KR 20040106046 A KR20040106046 A KR 20040106046A KR 1020030037227 A KR1020030037227 A KR 1020030037227A KR 20030037227 A KR20030037227 A KR 20030037227A KR 20040106046 A KR20040106046 A KR 20040106046A
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KR
South Korea
Prior art keywords
oil
engine
gas engine
gas
heat pump
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KR1020030037227A
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Korean (ko)
Inventor
김종문
최정철
Original Assignee
삼성전자주식회사
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Priority to KR1020030037227A priority Critical patent/KR20040106046A/en
Publication of KR20040106046A publication Critical patent/KR20040106046A/en

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    • 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
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00557—Details of ducts or cables
    • B60H1/00571—Details of ducts or cables of liquid ducts, e.g. for coolant liquids or refrigerants
    • 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
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/00792—Arrangement of detectors
    • 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
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/025—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from both the cooling liquid and the exhaust gases of the propulsion plant
    • 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
    • B60H1/32—Cooling devices

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

PURPOSE: A gas engine type heat pump is provided to apply an engine used for a vehicle without changing a shape and the size of an oil pan by installing an auxiliary oil tank, and delay change in quality of engine oil due to overheat. CONSTITUTION: A gas engine burns gas for generating power. A lubricating device(50) lubricates the gas engine. The lubricating device includes an oil pan(51) installed under an engine for storing engine oil. An auxiliary oil tank(60) is communicated with the oil pan for forming a storage space of the engine oil together with the oil pan. A bypass pipe(62) bypasses a part of a fluid flowing in a relief pipe(56) to the auxiliary oil tank. A switch valve(63) opens and shuts the bypass pipe according to a temperature of engine oil. A temperature sensor(64) measures a temperature of the engine oil.

Description

가스엔진식 히트펌프{GAS ENGINE HEAT PUMP}Gas Engine Heat Pumps {GAS ENGINE HEAT PUMP}

본 발명은 가스엔진식 히트펌프에 관한 것으로, 더욱 상세하게는 가스엔진을 윤활하기 위한 엔진오일의 열화를 지연시킬 수 있는 가스엔진식 히트펌프에 관한 것이다.The present invention relates to a gas engine type heat pump, and more particularly, to a gas engine type heat pump capable of delaying deterioration of engine oil for lubricating a gas engine.

일반적으로 가스엔진식 히트펌프는 냉매를 압축하는 압축기가 가스를 연소시키며 구동하는 가스엔진에 의해 동작시킬 수 있게 되어 있는 것으로, 하나의 유닛으로 냉방과 난방을 동시에 수행할 수 있도록 되어 있다.In general, a gas engine type heat pump is configured to be operated by a gas engine driven by a compressor that compresses a refrigerant to burn a gas. The gas engine heat pump can simultaneously perform cooling and heating with one unit.

그런데 가스엔진식 히트펌프에 사용되는 가스엔진은 차량에 사용되는 엔진에 비하여 운전시간이 상대적으로 매우 길기 때문에 엔진오일의 교체시기가 매우 짧다. 즉, 차량용 엔진의 엔진오일의 교환주기가 대략 100-160시간 정도라 하면, 가스엔진식 히트펌프에 사용되는 가스엔진의 경우 하루에 대략 8시간 구동한다고 가정하면 12.5-20일의 주기로 엔진오일을 자주 교체해 주어야만 한다.However, the gas engine used in the gas engine type heat pump has a relatively long driving time compared to the engine used in the vehicle, so the replacement time of the engine oil is very short. That is, assuming that the engine engine replacement cycle of a vehicle engine is about 100-160 hours, assuming that the gas engine used for the gas engine heat pump is driven about 8 hours a day, the engine oil is operated every 12.5-20 days. Must be replaced frequently.

따라서, 가스엔진식 히트펌프에 사용되는 가스엔진은 엔진오일의 교체주기를 연장하기 위해 엔진오일을 저장하는 오일팬의 크기가 차량에 사용되는 엔진의 오일팬에 비하여 4-5배 크게 형성되어 있다.Therefore, the gas engine used in the gas engine type heat pump is 4-5 times larger in size than the oil pan of the engine used in the vehicle, in order to extend the replacement period of the engine oil. .

따라서, 가스엔진식 히트펌프에 사용되는 가스엔진에는 오일팬을 별도로 설계, 제작하여 장착하여야만 한다는 문제점이 있다.Therefore, there is a problem in that the gas engine used in the gas engine heat pump must be separately designed, manufactured, and mounted.

본 발명은 이와 같은 문제점을 해결하기 위한 것으로, 본 발명의 목적은 차량에 적용되는 엔진을 형상 변경없이 그대로 사용할 수 있는 가스엔진식 히트펌프에 관한 것이다.The present invention is to solve such a problem, the object of the present invention relates to a gas engine type heat pump that can be used as it is without changing the engine applied to the vehicle.

도 1은 본 발명에 따른 가스엔진식 히트펌프의 개략적인 구성이 도시된 개략도이다.1 is a schematic diagram showing a schematic configuration of a gas engine type heat pump according to the present invention.

도 2는 본 발명에 따른 가스엔진식 히트펌프의 윤활장치의 구성이 개략적으로 도시된 개략도이다.Figure 2 is a schematic diagram schematically showing the configuration of the lubrication apparatus of the gas engine type heat pump according to the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10: 실외기 11: 가스엔진10: Outdoor unit 11: Gas engine

20: 실외기 21: 실외 열교환기20: outdoor unit 21: outdoor heat exchanger

30: 냉매관 40: 수냉식 냉각장치30: refrigerant pipe 40: water cooling chiller

50: 윤활장치 51: 오일팬50: lubricator 51: oil pan

52: 오일안내관 54: 오일펌프52: oil guiding pipe 54: oil pump

55: 릴리프밸브 56: 릴리프관55: relief valve 56: relief tube

60: 보조오일탱크 61: 연통관60: auxiliary oil tank 61: communication tube

62: 바이패스관 63: 개폐밸브62: bypass pipe 63: on-off valve

64: 온도감지센서64: temperature sensor

이와 같은 목적을 달성하기 위한 본 발명에 따른 가스엔진식 히트펌프는, 가스를 연소시키며 동력을 발생시키는 가스엔진과, 상기 가스엔진을 윤활하기 위한 윤활장치를 구비하되, 상기 윤활장치는 상기 가스엔진의 하부에 엔진오일의 저장을 위해 마련된 오일팬과, 상기 오일팬과 연통되어 상기 오일팬과 함께 엔진오일의 저장공간을 형성하는 보조오일탱크가 구비되어 있다.A gas engine heat pump according to the present invention for achieving the above object comprises a gas engine that burns gas and generates power, and a lubrication device for lubricating the gas engine, wherein the lubrication device is the gas engine. An oil pan provided for storing the engine oil at a lower portion thereof, and an auxiliary oil tank communicating with the oil pan to form a storage space of the engine oil together with the oil pan are provided.

또한, 상기 윤활장치에는 상기 오일팬의 엔진오일을 상기 가스엔진으로 안내하는 오일안내관과, 상기 오일안내관의 중도에 배치되어 엔진오일이 오일안내관을 따라 유동하게 하는 오일펌프와, 상기 오일안내관 내의 유압이 일정수준으로 유지되게 하는 릴리프밸브와, 상기 릴리프밸브에 의해 상기 오일안내관으로부터 배출된 엔진오일을 상기 오일팬으로 복귀되게 하는 릴리프관을 구비한다.In addition, the lubrication device includes an oil guide tube for guiding the engine oil of the oil pan to the gas engine, an oil pump disposed in the middle of the oil guide tube to allow the engine oil to flow along the oil guide tube, and the oil And a relief valve for maintaining the hydraulic pressure in the guide pipe at a constant level, and a relief pipe for returning the engine oil discharged from the oil guide pipe by the relief valve to the oil pan.

상기 릴리프관의 중도로부터 분기되어 상기 릴리프관을 따라 유동하는 유체의 일부가 보조오일탱크로 바이패스되게 하는 바이패스관과, 엔진오일의 온도에 따라 상기 바이패스관을 개폐하는 개폐밸브와, 엔진오일의 온도를 측정하는 온도감지센서를 구비한다.A bypass pipe branching from the middle of the relief pipe and allowing a part of the fluid flowing along the relief pipe to be bypassed to the auxiliary oil tank, an on / off valve for opening and closing the bypass pipe according to the temperature of engine oil, and an engine. It is provided with a temperature sensor for measuring the temperature of the oil.

또한, 상기 온도감지센서는 상기 릴리프관의 중도에 설치되어 상기 릴리프관을 따라 흐르는 엔진오일의 온도를 감지한다.In addition, the temperature sensor is installed in the middle of the relief pipe senses the temperature of the engine oil flowing along the relief pipe.

이하에서는 본 발명의 바람직한 하나의 실시예를 도면을 참조하여 상세히 설명한다.Hereinafter, one preferred embodiment of the present invention will be described in detail with reference to the drawings.

본 발명에 따른 가스엔진식 히트펌프는 도 1에 도시되어 있는 바와 같이, 실외에 배치되는 실외기(10)와 실내에 배치되는 실내기(20) 내에 히트펌프 사이클의 구성요소를 구비하여 이루어진다.As shown in FIG. 1, the gas engine heat pump according to the present invention includes components of a heat pump cycle in an outdoor unit 10 arranged outdoors and an indoor unit 20 arranged indoors.

즉, 실외기(10)에는 가스를 연소시키며 회전력을 발생시키는 가스엔진(11)과, 가스엔진(11)으로부터 회전력을 전달받아 저온저압의 냉매를 흡입 압축하여 고온 고압상태로 토출하는 압축기(12)와, 실외공기와 열교환 하는 실외 열교환기(13)와, 송풍력을 발생시켜 실외공기가 실외 열교환기(13)와 열교환 하게 하는 실외팬(14)과, 압축기(12) 의해 압축된 냉매를 감압 팽창되게 하는 팽창장치(15)가 내장되며, 실내기(20)에는 실내공기와 열교환하는 실내 열교환기(21)와 송풍력을 발생시켜 실내 공기가 실내 열교환기(21)와 열교환하게 하는 실내팬(22)이 내장된다.That is, in the outdoor unit 10, a gas engine 11 which burns gas and generates rotational force, and a compressor 12 that receives rotational force from the gas engine 11, sucks and compresses refrigerant of low temperature and low pressure, and discharges the refrigerant at a high temperature and high pressure. And an outdoor heat exchanger (13) for exchanging heat with the outdoor air, an outdoor fan (14) for generating a blowing force to exchange heat with the outdoor heat exchanger (13), and a refrigerant compressed by the compressor (12). An expansion device 15 to be expanded is built in, and the indoor unit 20 has an indoor heat exchanger 21 for exchanging heat with the indoor air and an indoor fan for generating a blowing force to allow the indoor air to exchange heat with the indoor heat exchanger 21 ( 22) is built in.

이러한 가스엔진식 히트펌프의 구성요소들은 냉매관(30)들을 통해 폐회로로 연계되도록 되어 있으며, 압축기(12)의 출구측 냉매관(30)에는 난방운전 또는 냉방운전에 따라 냉매가 흐르는 방향을 전환하는 4-웨이밸브(16)가 설치된다.The components of the gas engine type heat pump are connected to the closed circuit through the refrigerant pipes 30, and the refrigerant pipe 30 of the compressor 12 changes the direction in which the refrigerant flows according to the heating operation or the cooling operation. 4-way valve 16 is installed.

따라서 난방운전시에는 4-웨이밸브(16)가 압축기(12)에서 토출된 고온 고압을 냉매를 실내 열교환기(21)로 안내하여 실내 열교환기(21)는 응축기의 역할을 수행하게 하고 실외 열교환기(13)는 증발기의 역할을 수행하게 하다가, 냉방운전시에는 4-웨이밸브(16)가 압축기(12)에서 토출된 고온 고압의 냉매를 실외 열교환기(13)로 안내하여 실외 열교환기(13)는 응축기의 역할을 수행하게 하고 실내 열교환기(21)는 증발기의 역할을 수행하게 하는 것이다.Therefore, during the heating operation, the 4-way valve 16 guides the refrigerant to the indoor heat exchanger 21 at a high temperature and high pressure discharged from the compressor 12 so that the indoor heat exchanger 21 serves as a condenser and performs outdoor heat exchange. In the air conditioner 13, the four-way valve 16 guides the high temperature and high pressure refrigerant discharged from the compressor 12 to the outdoor heat exchanger 13 during the cooling operation. 13) to serve as a condenser and the indoor heat exchanger 21 to serve as an evaporator.

또한, 가스엔진(11)을 냉각하기 위하여 수냉식 냉각장치(40)가 구비되는데, 수냉식 냉각장치는(40) 일측은 가스엔진(11)에 설치되고 타측은 실외 열교환기(13)에 설치되어 냉각수가 가스엔진(11)과 실외 열교환기(13)를 순환하게 하는 냉각수관(41)과, 냉각수관(41)의 중도에 설치되며 펌핑력을 발생시켜 냉각수가 순환하게 하는 냉각수 펌프(42)를 구비하여 형성된다. 미설명부터 43은 난방운전시 가스엔진(11)에서 발생한 열로 냉매를 가열하기 위한 히팅장치(43)이다.In addition, a water-cooled cooling device 40 is provided to cool the gas engine 11, wherein the water-cooled cooling device 40 is installed at one side of the gas engine 11 and the other side is installed at the outdoor heat exchanger 13. A coolant pipe 41 for circulating the gas engine 11 and the outdoor heat exchanger 13 and a coolant pump 42 installed in the middle of the coolant pipe 41 to generate a pumping force to circulate the coolant. It is provided with. 43 is a heating device 43 for heating the refrigerant with heat generated from the gas engine 11 during the heating operation.

또한, 본 발명에 따른 가스엔진식 히트펌프에는 가스엔진의 구동부, 즉, 크랭크축, 캠축, 실린더 및 피스톤 등의 윤활 및 냉각을 위한 윤활장치(50)가 구비되어 있다.In addition, the gas engine type heat pump according to the present invention is provided with a lubrication device 50 for lubricating and cooling the driving unit of the gas engine, that is, a crank shaft, a cam shaft, a cylinder, and a piston.

윤활장치(50)는 도 2에 도시되어 있는 바와 같이, 가스엔진(11)의 하부에 장착되어 엔진오일을 저장하는 오일팬(51)과, 엔진오일이 오일팬(51)으로부터 가스엔진(11)의 구동부, 즉, 크랭크축, 캠축, 실린더 및 피스톤 등에 도달하도록 안내하는 오일안내관(52)과, 오일안내관(52)의 오일팬(51)측 끝단에 장착되며 엔진오일로부터 불순물을 분리하는 오일스트레이너(53)와, 오일안내관(52)의 중도에 장착되어 엔진오일이 오일안내관(52)을 따라 이동하게 하는 오일펌프(54)와, 오일안내관(52) 내의 유압이 일정압 이하로 유지되게 하기 위한 릴리프밸브(55)와 릴리프밸브(55)에 의해 오일안내관(52)으로부터 배출된 엔진오일을 다시 오일팬(51)으로 안내하는 릴리프관(56)이 마련되어 있다.As shown in FIG. 2, the lubrication device 50 is mounted on the lower part of the gas engine 11 to store an oil of the engine oil, and the engine oil is stored in the gas engine 11 from the oil pan 51. Oil guide pipe 52 for guiding the crankshaft, camshaft, cylinder and piston, and the oil pan 51 side end of the oil guide pipe 52 to separate impurities from the engine oil. The oil strainer 53 and the oil guide pipe 52 are installed in the middle of the oil guide pipe 52 to move the engine oil along the oil guide pipe 52, and the oil pressure in the oil guide pipe 52 is constant A relief pipe 56 for guiding the engine oil discharged from the oil guide pipe 52 by the relief valve 55 and the relief valve 55 for maintaining the pressure or less back to the oil pan 51 is provided.

또한, 본 발명에 따른 가스엔진식 히트펌프에는 저장되는 엔진오일의 양을 대폭 늘리면서도 차량에 사용되는 엔진을 그대로 가스엔진식 히트펌프에 적용할 수있게 하기 위해 보조오일탱크(60)가 마련되어 있다.In addition, the gas engine heat pump according to the present invention is provided with an auxiliary oil tank 60 so that the engine used in the vehicle can be applied to the gas engine heat pump as it is, while greatly increasing the amount of engine oil stored. .

보조오일탱크(60)는 오일팬(51)과 마찬가지로 엔진오일이 저장되는 저장공간을 형성하는 것으로, 오일팬(51)에 비하여 대략 4-5배의 용적을 갖도록 형성되어 엔진오일의 교체시기를 연장시킬 수 있게 함으로써, 차량에 사용되는 엔진을 오일팬(51)의 크기 및 형상 변경없이 가스엔진식 히트펌프에 그대로 사용할 수 있게 한다.The auxiliary oil tank 60, like the oil pan 51, forms a storage space in which engine oil is stored. The auxiliary oil tank 60 is formed to have a volume of about 4-5 times larger than the oil pan 51, so that the engine oil can be replaced. By being able to extend, the engine used for a vehicle can be used as it is for a gas engine type heat pump without changing the size and shape of the oil pan 51.

이러한 보조오일탱크(60)와 오일팬(51)은 그 내부에 저장된 엔진오일의 유면 높이가 실질적으로 서로 동일하도록 그 하부를 서로 연통시키는 연통관(61)이 마련되어, 오일펌프(54)에 의해 오일팬(51) 내의 엔진오일이 펌핑되면 유압차에 의해 보조오일탱크(60)의 엔진오일이 연통관(61)을 통해 오일팬(51)에 공급될 수 있게 된다.The auxiliary oil tank 60 and the oil pan 51 are provided with a communication tube 61 for communicating the lower part with each other such that the oil level of the engine oil stored therein is substantially the same, and the oil is pumped by the oil pump 54. When the engine oil in the fan 51 is pumped, the engine oil of the auxiliary oil tank 60 can be supplied to the oil pan 51 through the communication pipe 61 by the hydraulic vehicle.

또한, 릴리프관(56)의 중도에는 릴리프관(56)을 통과하는 엔진오일의 일부가 보조오일탱크(60)로 바이패스되게 하는 바이패스관(62)과, 릴리프관(56)을 통과하는 엔진오일의 온도에 따라 바이패스관(62)을 개폐하는 개폐밸브(63)가 구비되어 있으며, 릴리프관(56)의 중도에는 릴리프관(56)을 통과하는 엔진오일의 온도를 감지하여 그 온도에 따라 개폐밸브(63)가 개폐되게 하는 온도감지센서(64)가 구비된다.In the middle of the relief tube 56, a portion of the engine oil passing through the relief tube 56 is bypassed to the auxiliary oil tank 60 and the relief tube 56 passes through the relief tube 56. Opening and closing valve 63 for opening and closing the bypass pipe 62 according to the temperature of the engine oil is provided, the middle of the relief pipe 56 senses the temperature of the engine oil passing through the relief pipe 56 and the temperature In accordance with the on-off valve 63 is provided with a temperature sensor 64 to open and close.

따라서, 온도감지센서(64)에 의해 릴리프관(56)을 흐르는 엔진오일의 온도가 일정 이상으로 상승한 것이 감지되면 개폐밸브(63)가 동작하여 바이패스관(62)을 개방하여 과열된 엔진오일이 바이패스관(62)을 따라 보조오일탱크(60)로 유입되게함으로써 과열에 의한 엔진오일의 변질을 지연시킬 수 있게 되는 것이다.Therefore, when it is detected by the temperature sensor 64 that the temperature of the engine oil flowing through the relief pipe 56 rises above a certain level, the shut-off valve 63 operates to open the bypass pipe 62 to overheat the engine oil. By allowing the auxiliary oil tank 60 to flow along the bypass pipe 62, it is possible to delay deterioration of the engine oil due to overheating.

본 실시예에서 온도감지센서(64)는 릴리프관(56)의 중도에 설치되도록 되어 있으나 이에 한정하지 않고 오일팬(51) 등 다양한 위치에 설치되어질 수 있다.In this embodiment, the temperature sensor 64 is to be installed in the middle of the relief tube 56, but is not limited to this may be installed in various positions such as the oil pan (51).

다음은 이와 같이 구성된 본 발명에 따른 가스엔진 히트펌프의 동작 및 작용효과를 상세히 설명한다.Next will be described in detail the operation and effect of the gas engine heat pump according to the present invention configured as described above.

본 발명에 따른 가스엔진(11)을 구동시키면 가스가 연소하면서 회전력이 발생되어 압축기(12)에 전달되고, 그에 따라 압축기(12)에서 냉매가 고온 고압으로 압축된다. 실외 열교환기(13)에서 실외 공기와 열교환하며 열을 방출 또는 흡수하여 실내공간의 냉방 또는 난방을 수행한다.When the gas engine 11 according to the present invention is driven, a rotational force is generated while the gas is burned and transmitted to the compressor 12, whereby the refrigerant is compressed to high temperature and high pressure in the compressor 12. The outdoor heat exchanger 13 exchanges heat with outdoor air and emits or absorbs heat to perform cooling or heating of the indoor space.

이와 같이 냉방 및 난방을 수행하는 과정에서 가스엔진(11)에는 가스엔진(11)의 구동부의 윤활 및 냉각을 위해 엔진오일이 공급된다. 즉, 오일펌프(54)가 작동하여 펌핑력을 발생시키면 오일안내관(52)을 따라 엔진오일이 가스엔진(11)의 구동부에 전달되어 윤활 및 냉각이 수행된다.In this process of cooling and heating, the engine oil is supplied to the gas engine 11 for lubrication and cooling of the driving unit of the gas engine 11. That is, when the oil pump 54 operates to generate a pumping force, the engine oil is transferred to the driving unit of the gas engine 11 along the oil guide pipe 52 to perform lubrication and cooling.

또한, 이와 같이 오일안내관(52)을 따라 이동하는 엔진오일의 일부는 오일안내관(52) 내의 유압이 일정수준 이하로 유지되게 하는 릴리프밸브(55) 및 릴리프관(56)에 의해 오일팬(51)으로 복귀된다.In addition, the part of the engine oil moving along the oil guide pipe 52 as described above is the oil pan by the relief valve 55 and the relief pipe 56 to maintain the hydraulic pressure in the oil guide pipe 52 below a certain level. It returns to 51.

이 때, 가스엔진(11)의 지속적인 사용에 의해 릴리프관(56)을 통과하는 엔진오일의 온도가 일정수준 이상으로 과열된 것이 온도감지센서(64)에 의해 감지되면, 개폐밸브(63)가 바이패스관(62)을 개방하고, 그에 따라 엔진오일이 바이패스관(62)을 따라 보조오일탱크(60)로 바이패스된다. 따라서 과열된 엔진오일은 보조오일탱크(60)로 바이패스되는 과정에서 냉각된 후, 연통관(61)을 통해 다시 오일팬(51)으로 공급된다.At this time, when the temperature sensor 64 detects that the temperature of the engine oil passing through the relief pipe 56 by the continuous use of the gas engine 11 is over a predetermined level, the shutoff valve 63 is closed. The bypass pipe 62 is opened, whereby the engine oil is bypassed along the bypass pipe 62 to the auxiliary oil tank 60. Therefore, the superheated engine oil is cooled in the process of bypassing the auxiliary oil tank 60, and then supplied to the oil pan 51 again through the communication pipe 61.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 가스엔진식 히트펌프는 보조오일탱크를 구비하여 차량에 사용되는 엔진을 오일팬의 형상 및 크기를 변경할 필요 없이 그대로 적용하여 사용할 수 있게 되는 작용효과가 있다.As described in detail above, the gas engine type heat pump according to the present invention has an effect of being able to be applied to an engine used in a vehicle by using an auxiliary oil tank without changing the shape and size of an oil pan. .

또한, 본 발명에 따른 가스엔진식 히트펌프는 릴리프관을 통과하는 엔진오일의 온도가 일정이상 과열된 것이 온도감지센서에 의해 감지되면 릴리프관을 통과하는 엔진오일의 일부가 바이패스관을 통해 보조오일탱크로 바이패스되며 냉각되도록 되어 있으므로 과열에 따른 엔진오일의 변질을 지연시킬 수 있게 되는 작용효과가 있다.In addition, in the gas engine type heat pump according to the present invention, when a temperature sensor detects that the temperature of the engine oil passing through the relief pipe is over a certain level, a part of the engine oil passing through the relief pipe is assisted through the bypass pipe. Since the oil tank is bypassed and cooled, there is an effect of delaying the deterioration of engine oil due to overheating.

Claims (4)

가스를 연소시키며 동력을 발생시키는 가스엔진과, 상기 가스엔진을 윤활하기 위한 윤활장치를 구비하되,It is provided with a gas engine that burns gas and generates power, and a lubrication device for lubricating the gas engine, 상기 윤활장치는 상기 가스엔진의 하부에 엔진오일의 저장을 위해 마련된 오일팬과, 상기 오일팬과 연통되어 상기 오일팬과 함께 엔진오일의 저장공간을 형성하는 보조오일탱크가 구비되어 있는 것을 특징으로 하는 가스엔진식 히트펌프.The lubrication device is characterized in that the lower portion of the gas engine is provided with an oil pan provided for storing the engine oil, and the auxiliary oil tank in communication with the oil pan to form a storage space of the engine oil with the oil pan. Gas engine type heat pump. 제 1항에 있어서,The method of claim 1, 상기 윤활장치에는 상기 오일팬의 엔진오일을 상기 가스엔진으로 안내하는 오일안내관과, 상기 오일안내관의 중도에 배치되어 엔진오일이 오일안내관을 따라 유동하게 하는 오일펌프와, 상기 오일안내관 내의 유압이 일정수준으로 유지되게 하는 릴리프밸브와, 상기 릴리프밸브에 의해 상기 오일안내관으로부터 배출된 엔진오일을 상기 오일팬으로 복귀되게 하는 릴리프관을 구비하는 것을 특징으로 하는 가스엔진식 히트펌프.The lubrication apparatus includes an oil guide tube for guiding the engine oil of the oil pan to the gas engine, an oil pump disposed in the middle of the oil guide tube to allow the engine oil to flow along the oil guide tube, and the oil guide tube. And a relief valve for returning the engine oil discharged from the oil guide pipe by the relief valve to the oil pan. 제 2항에 있어서,The method of claim 2, 상기 릴리프관의 중도로부터 분기되어 상기 릴리프관을 따라 유동하는 유체의 일부가 보조오일탱크로 바이패스되게 하는 바이패스관과, 엔진오일의 온도에 따라 상기 바이패스관을 개폐하는 개폐밸브와, 엔진오일의 온도를 측정하는 온도감지센서를 구비한 것을 특징으로 하는 가스엔진식 히트펌프.A bypass pipe branching from the middle of the relief pipe and allowing a part of the fluid flowing along the relief pipe to be bypassed to the auxiliary oil tank, an on / off valve for opening and closing the bypass pipe according to the temperature of engine oil, and an engine. Gas engine type heat pump comprising a temperature sensor for measuring the temperature of the oil. 제 3항에 있어서,The method of claim 3, wherein 상기 온도감지센서는 상기 릴리프관의 중도에 설치되어 상기 릴리프관을 따라 흐르는 엔진오일의 온도를 감지하는 것을 특징으로 하는 가스엔진식 히트펌프.The temperature sensor is installed in the middle of the relief pipe gas engine type heat pump, characterized in that for detecting the temperature of the engine oil flowing along the relief pipe.
KR1020030037227A 2003-06-10 2003-06-10 Gas engine heat pump KR20040106046A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100398918C (en) * 2005-03-23 2008-07-02 爱信精机株式会社 Engine-driven air conditioning machine
CN105987546A (en) * 2015-02-05 2016-10-05 佛山市禾才科技服务有限公司 Device for rapidly checking oil quality of air conditioning system
KR20190072949A (en) * 2017-12-18 2019-06-26 대우조선해양 주식회사 Back up oil overheating preventing apparatus of engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100398918C (en) * 2005-03-23 2008-07-02 爱信精机株式会社 Engine-driven air conditioning machine
CN105987546A (en) * 2015-02-05 2016-10-05 佛山市禾才科技服务有限公司 Device for rapidly checking oil quality of air conditioning system
KR20190072949A (en) * 2017-12-18 2019-06-26 대우조선해양 주식회사 Back up oil overheating preventing apparatus of engine

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