KR20040050303A - A cooling system of v-type engine - Google Patents

A cooling system of v-type engine Download PDF

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Publication number
KR20040050303A
KR20040050303A KR1020020078095A KR20020078095A KR20040050303A KR 20040050303 A KR20040050303 A KR 20040050303A KR 1020020078095 A KR1020020078095 A KR 1020020078095A KR 20020078095 A KR20020078095 A KR 20020078095A KR 20040050303 A KR20040050303 A KR 20040050303A
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KR
South Korea
Prior art keywords
cooling water
pipe
type engine
relief
cooling
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KR1020020078095A
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Korean (ko)
Inventor
홍순일
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현대자동차주식회사
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Priority to KR1020020078095A priority Critical patent/KR20040050303A/en
Publication of KR20040050303A publication Critical patent/KR20040050303A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/161—Controlling of coolant flow the coolant being liquid by thermostatic control by bypassing pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/0204—Filling
    • F01P11/0209—Closure caps
    • F01P11/0238—Closure caps with overpressure valves or vent valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/04—Arrangements of liquid pipes or hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/167—Controlling of coolant flow the coolant being liquid by thermostatic control by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed

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

Abstract

PURPOSE: A cooling system of a V-type engine is provided to prevent the overheating or overcooling of one cooling water bank by equalizing the cooling performance of a left cylinder and a right cylinder and to realize quiet traveling by making engine output uniform. CONSTITUTION: A left pressure-compensating valve(31) and a right pressure-compensating valve(33) are installed on a left cooling water supply pipe(7) and a right cooling water supply pipe(9) connecting a water pump(11) with a left cooling water bank(3) and a right cooling water bank(5). The left and right pressure-compensating valves are connected via a bypass pipe(35). Both ends of the bypass pipe are connected to one sides of relief pipes(41,42), and return pipes(37,39) are connected to the other sides of the relief pipes. Elastic members(45,46) support relief pistons(43,44) placed in the relief pipes.

Description

Ｖ형 엔진의 냉각 시스템{A COOLING SYSTEM OF V-TYPE ENGINE}Cooling system of fan type engine {A COOLING SYSTEM OF V-TYPE ENGINE}

본 발명은 V형 엔진의 냉각 시스템에 관한 것으로, 보다 상세하게는 워터펌프의 좌,우측 냉각수 통로의 상호간 압력을 일정하게 맞추도록 상호 바이패스 관로로 연결되는 압력보상밸브를 좌,우측 냉각수 통로 상에 각각 설치하고, V형 엔진의 실린더 블록에 형성되는 좌,우측 냉각수 뱅크로 공급되는 냉각수의 압력차를 해소할 수 있도록 하는 V형 엔진의 냉각 시스템에 관한 것이다.The present invention relates to a cooling system of a V-type engine, and more particularly, a pressure compensation valve connected to a mutual bypass pipe so as to uniformly adjust pressure between the left and right cooling water passages of a water pump on the left and right cooling water passages. And a cooling system of the V-type engine, each of which is installed at the upper and lower sides of the cylinder block of the V-type engine, to solve the pressure difference of the cooling water supplied to the left and right cooling water banks.

일반적으로, 실린더 블록의 실린더가 일렬로 배열된 인라인(IN-LINE)엔진의 경우, 워터펌프에서 직접적으로 실린더 블록에 냉각수를 공급하기 때문에 균일한량의 냉각수가 공급되고 있지만, 실린더의 배열이 V형으로 배치된 V형 엔진 또는 수평 대향형 엔진의 경우 실린더 블록의 좌측 및 우측 냉각수 뱅크에 균일한 유량의 냉각수를 공급하기는 어려운 부분이다.In general, in the case of an IN-LINE engine in which cylinders of a cylinder block are arranged in a line, a uniform amount of cooling water is supplied because the water pump directly supplies the cooling water to the cylinder block. In the case of the V-type engine or the horizontally opposed engine arranged in the above, it is difficult to supply the cooling water with a uniform flow rate to the left and right cooling water banks of the cylinder block.

한 개의 워터펌프에서 토출되는 냉각수를 좌,우측의 실린더를 냉각시키기 위하여 좌,우측 냉각수 뱅크로 동일한 압력과 유량을 공급하기 위해서는 좌,우측 냉각수 뱅크의 냉각수 압력과 냉각수 방향에 관한 어려운 튜닝작업이 필요하며, 실제 생산시, 생산편차에 의해서도 좌,우측 냉각수 뱅크에 공급되는 냉각수의 량의 차가 발생하게 된다.In order to supply the same pressure and flow rate to the left and right cooling water banks in order to cool the left and right cylinders with the coolant discharged from one water pump, it is necessary to perform difficult tuning on the cooling water pressure and the cooling water direction of the left and right cooling water banks. In actual production, a difference in the amount of cooling water supplied to the left and right cooling water banks occurs due to the production deviation.

도 3은 종래 기술에 따른 V형 엔진의 냉각 시스템의 구성도로써, 종래 V형 엔진의 냉각 시스템은 V형 엔진의 실린더 블록(51)에 형성되는 좌,우측 냉각수 뱅크(53,55)와, 상기 좌,우측 냉각수 뱅크(53,55)에 냉각수를 공급하기 위하여 좌,우측 냉각수 공급관(57,59)을 통하여 설치되는 워터펌프(61)와, 상기 좌,우측 냉각수 뱅크(53,55)과 냉각수 배출관(63)을 통하여 연결되어 실린더 블록(51)을 냉각시키고 가열된 냉각수를 다시 냉각시켜 냉각수 유입관(65)을 통하여 상기 워터펌프(61)로 냉각수를 공급하여 주는 라디에이터(67)와, 상기 냉각수의 초기 온도조절을 위하여 상기 냉각수 유입관(65)의 일측에 장착되는 서모스탯(69)을 포함하여 이루어진다.3 is a configuration diagram of a cooling system of a V-type engine according to the prior art, the cooling system of a conventional V-type engine is left and right coolant banks (53, 55) formed in the cylinder block 51 of the V-type engine, Water pumps 61 installed through the left and right cooling water supply pipes 57 and 59 to supply cooling water to the left and right cooling water banks 53 and 55, and the left and right cooling water banks 53 and 55. A radiator 67 connected through a coolant discharge pipe 63 to cool the cylinder block 51 and cooling the heated coolant again to supply coolant to the water pump 61 through a coolant inlet pipe 65; It comprises a thermostat (69) mounted on one side of the coolant inlet pipe (65) for the initial temperature control of the coolant.

그리고 상기 냉각수 배출관(63)의 일측으로부터 분기되는 분기 공급관(71)과 연결되어 냉각수를 공급받아 공조 시스템용 난방공기를 데운 후, 상기 냉각수 유입관(65)의 일측으로 연결되는 분기 배출관(73)을 통하여 상기 냉각수를 배출하는 히터(75)를 포함한다.And connected to the branch supply pipe 71 branched from one side of the cooling water discharge pipe 63 receives the cooling water to warm the heating air for the air conditioning system, branch discharge pipe 73 connected to one side of the cooling water inlet pipe (65) It includes a heater 75 for discharging the cooling water through.

이러한 V형 엔진의 냉각 시스템에서, 도 4에서 도시한 바와 같이, 상기 워터펌프(61)의 좌,우측 냉각수 토출측(P1,P2)의 형상은 워터펌프(61)의 형상이나 엔진 및 엔진부품들과의 간섭에 의한 장착위치 등에 의해 상호 대칭적으로 형성하기 어려우며, 이에 따른 좌,우측 냉각수 토출측(P1,P2)은 상호 냉각수량의 편차가 발생한 상태로 공급되며, 이는 좌,우측 기통간의 냉각 성능차를 발생시켜 일측의 냉각수 뱅크에 오버 히트 문제가 발생하거나, 오버 쿨링 현상이 발생할 수가 있다.In the cooling system of the V-type engine, as shown in FIG. 4, the shapes of the left and right cooling water discharge sides P1 and P2 of the water pump 61 are the shape of the water pump 61 or the engine and engine parts. It is difficult to form symmetrically with each other due to the mounting position due to interference with each other, and thus the left and right cooling water discharge sides P1 and P2 are supplied in a state where the mutual coolant amount is varied, which is the difference in cooling performance between the left and right cylinders. May generate an overheat problem in the cooling water bank on one side, or an overcooling phenomenon may occur.

또한, 실린더 블록내 좌,우측 실린더간 냉각편차에 의한 성능차가 발생하게 되어 엔진의 출력 불균일로 인한 진동이 발생하기도 한다In addition, the performance difference is caused by the cooling deviation between the left and right cylinders in the cylinder block, and the vibration may be generated due to uneven output of the engine.

이를 극복하기 위하여 V형 엔진에서 좌,우측 냉각수 뱅크에 동일한 유량의 냉각수를 공급하기 위하여, 좌,우측 냉각수 뱅크에 각각 독립된 워터펌프를 갖출 수는 있으나, 이는 엔진의 전체 크기가 커지게 되고, 비용측면에도 문제점이 지적되고 있다.In order to overcome this problem, in order to supply coolant with the same flow rate to the left and right coolant banks in the V-type engine, independent water pumps may be provided in the left and right coolant banks, but this increases the overall size of the engine and the cost. Problems have also been pointed out.

또한, 가장 간단한 개선안으로 헤드 가스켓의 물구멍 크기를 수정함으로써, 좌,우측 냉각수 뱅크의 저항을 조절하여 밸런스를 맞추고 있으나, 많은 노력이 필요하며 생산편차에 의한 실린더 블록의 저항이 변하게 되면, 문제가 발생하는 경우가 많다.In addition, by adjusting the water hole size of the head gasket as the simplest improvement, the balance of the left and right cooling water banks is adjusted to balance the balance, but much effort is required, and if the resistance of the cylinder block is changed due to production deviation, a problem occurs. Many times.

따라서, 본 발명은 상기한 바와 같은 문제점을 해소하기 위하여 발명된 것으로써, 본 발명의 목적은 워터펌프의 좌,우측 냉각수 통로의 상호간 압력을 일정하게 맞추도록 상호 바이패스 관로로 연결되는 압력보상밸브를 좌,우측 냉각수 통로 상에 각각 설치하고, V형 엔진의 실린더 블록에 형성되는 좌,우측 냉각수 뱅크로 공급되는 냉각수의 압력차를 해소할 수 있도록 하는 V형 엔진의 냉각 시스템을 제공하는 것이다.Therefore, the present invention has been invented to solve the problems as described above, an object of the present invention is to provide a pressure compensation valve connected to the mutual bypass pipe to constantly match the pressure between the left and right cooling water passages of the water pump It is to provide a cooling system of the V-type engine which is installed on the left and right cooling water passage, respectively, and can solve the pressure difference of the cooling water supplied to the left and right cooling water bank formed in the cylinder block of the V-type engine.

도 1은 본 발명의 실시예에 따른 V형 엔진의 냉각 시스템의 구성도이다.1 is a configuration diagram of a cooling system of a V-type engine according to an embodiment of the present invention.

도 2는 본 발명의 실시예에 따른 V형 엔진의 냉각 시스템의 작동 상태도이다.2 is an operating state diagram of a cooling system of a V-type engine according to an embodiment of the present invention.

도 3은 종래 기술에 따른 V형 엔진의 냉각 시스템의 구성도이다.3 is a configuration diagram of a cooling system of a V-type engine according to the prior art.

도 4는 종래 기술에 따른 V형 엔진의 냉각 시스템의 워터펌프 토출측의 구성도이다.4 is a configuration diagram of a water pump discharge side of a cooling system of a V engine according to the prior art.

상기의 목적을 달성하기 위한 본 발명은, V형 엔진의 실린더 블록에 형성되는 좌,우측 냉각수 뱅크와; 상기 좌,우측 냉각수 뱅크에 냉각수를 공급하기 위하여 좌,우측 냉각수 공급관을 통하여 설치되는 워터펌프와; 상기 좌,우측 냉각수 뱅크와 냉각수 배출관을 통하여 연결되어 실린더 블록을 냉각시키고 가열된 냉각수를 다시 냉각시켜 냉각수 유입관을 통하여 상기 워터펌프로 냉각수를 공급하여 주는 라디에이터와, 상기 냉각수의 초기 온도조절을 위하여 상기 냉각수 유입관의 일측에 장착되는 서모스탯을 포함하는 V형 엔진의 냉각 시스템에서,The present invention for achieving the above object, the left and right coolant banks formed in the cylinder block of the V-type engine; A water pump installed through left and right cooling water supply pipes to supply cooling water to the left and right cooling water banks; A radiator connected through the left and right cooling water banks and a cooling water discharge pipe to cool a cylinder block, cooling the heated cooling water again, and supplying the cooling water to the water pump through a cooling water inlet pipe, and for adjusting the initial temperature of the cooling water. In the cooling system of the V-type engine including a thermostat mounted on one side of the coolant inlet pipe,

상기 워터펌프와 상기 좌,우측 냉각수 뱅크를 연결하는 좌,우측 냉각수 공급관 상에 각각 설치되는 좌,우측 압력보상밸브와; 상기 좌,우측 압력보상밸브를 연결하는 바이패스 관과; 상기 좌,우측 압력보상밸브와 상기 좌,우측 냉각수 공급관을 각각 연결하는 좌,우측 리턴관을 포함하는 것을 특징으로 하며,Left and right pressure compensation valves respectively installed on left and right cooling water supply pipes connecting the water pump and the left and right cooling water banks; A bypass pipe connecting the left and right pressure compensation valves; And a left and right return pipe connecting the left and right pressure compensation valves to the left and right cooling water supply pipes, respectively.

상기 좌,우측 압력보상밸브는 상기 좌,우측 냉각수 공급관 상에 각각 형성되며, 일측에 상기 바이패스 관이 연결되고, 타측에는 상기 리턴관이 연결되는 릴리프 관과; 상기 릴리프 관 내에 구성되는 릴리프 피스톤과; 상기 릴리프 관내에서 상기 릴리프 피스톤을 지지하는 탄성부재로 이루어지는 것을 특징으로 한다.The left and right pressure compensation valves are respectively formed on the left and right cooling water supply pipe, the relief pipe is connected to the bypass pipe on one side, the return pipe is connected to the other side; A relief piston configured in the relief pipe; And an elastic member for supporting the relief piston in the relief tube.

이하, 상기의 목적을 구체적으로 실현할 수 있는 본 발명의 실시예를 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings an embodiment of the present invention that can specifically realize the above object will be described.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 보다 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

도 1은 본 발명의 실시예에 따른 V형 엔진의 냉각 시스템의 구성도로써, 본 발명의 V형 엔진의 냉각 시스템은, V형 엔진의 실린더 블록(1)에는 좌,우측 냉각수 뱅크(3,5)가 각각 형성되고, 상기 좌,우측 냉각수 뱅크(3,5)는 냉각수를 공급받기 위하여 좌,우측 냉각수 공급관(7,9)을 통하여 워터펌프(11)와 연결된다.1 is a configuration diagram of a cooling system of a V-type engine according to an embodiment of the present invention. In the cooling system of the V-type engine of the present invention, the left and right cooling water banks 3, 5) are respectively formed, and the left and right cooling water banks 3 and 5 are connected to the water pump 11 through the left and right cooling water supply pipes 7 and 9 to receive the cooling water.

상기 좌,우측 냉각수 뱅크(3,5)는 냉각수 배출관(13)을 통하여 라디에이터(17)와 연결되어 실린더 블록(1)을 냉각시키고 가열된 냉각수를 다시 팬(18)이나 외부 공기에 의해 냉각시키게 된다.The left and right coolant banks 3 and 5 are connected to the radiator 17 through the coolant discharge pipe 13 to cool the cylinder block 1 and to cool the heated coolant again by the fan 18 or the outside air. do.

그리고 상기 라디에이터(17)은 다시 냉각수 유입관(15)을 통하여 상기 워터펌프(11)와 연결되어 냉각된 냉각수를 워터펌프(11)로 공급하여 주게 된다.In addition, the radiator 17 is connected to the water pump 11 through the coolant inlet pipe 15 to supply the cooled coolant to the water pump 11.

또한, 상기 냉각수의 초기 온도조절을 위하여 상기 냉각수 유입관(15)의 일측에는 서모스탯(19)이 장착된다.In addition, a thermostat 19 is mounted at one side of the coolant inlet pipe 15 to adjust the initial temperature of the coolant.

한편, 상기 냉각수 배출관(13)의 일측으로부터 분기되는 분기 공급관(21)과 연결되어 냉각수를 공급받아 공조 시스템용 난방공기를 데운 후, 상기 냉각수 유입관(15)의 일측으로 연결되는 분기 배출관(23)을 통하여 상기 냉각수를 배출하는 히터(25)를 구비한다.Meanwhile, the branch discharge pipe 23 connected to the branch supply pipe 21 branched from one side of the cooling water discharge pipe 13 to receive the cooling water to warm the heating air for the air conditioning system, and connected to one side of the cooling water inlet pipe 15. Heater 25 for discharging the cooling water through).

이러한 V형 엔진의 냉각 시스템에서, 상기 워터펌프(11)와 상기 좌,우측 냉각수 뱅크(3,5)를 연결하는 좌,우측 냉각수 공급관(7,9) 상에는 각각 좌,우측 압력보상밸브(31,33)가 설치되고, 상기 좌,우측 압력보상밸브(31,33)는 상호간의 일측이 바이패스 관(35)을 통하여 연결된다.In the cooling system of such a V-type engine, the left and right pressure compensation valves 31 are connected to the left and right cooling water supply pipes 7 and 9 connecting the water pump 11 and the left and right cooling water banks 3 and 5, respectively. (33) is installed, and the left and right pressure compensation valves (31, 33) are connected to each other through the bypass pipe (35).

그리고 상기 좌,우측 압력보상밸브(31,33)는 상기 좌,우측 냉각수 공급관(7,9)의 일측에 각각 좌,우측 리턴관(37,39)을 통하여 연결된다.The left and right pressure compensation valves 31 and 33 are connected to one side of the left and right cooling water supply pipes 7 and 9 through left and right return pipes 37 and 39, respectively.

즉, 상기 좌,우측 압력보상밸브(31,33)는, 도 2에서 도시한 바와 같이, 상기 좌,우측 냉각수 공급관(7,9) 상에 각각 릴리프 관(41,42)을 형성하며, 상기 릴리프 관(41,42)의 일측에는 상기 바이패스 관(35)의 양단이 각각 연결되고, 상기 릴리프 관(41,42)의 타측에는 상기 리턴관(37,39)이 각각 연결된다.That is, the left and right pressure compensation valves 31 and 33 form relief pipes 41 and 42 on the left and right cooling water supply pipes 7 and 9, respectively, as shown in FIG. 2. Both ends of the bypass pipe 35 are connected to one side of the relief pipes 41 and 42, respectively, and the return pipes 37 and 39 are connected to the other side of the relief pipes 41 and 42, respectively.

그리고 상기 릴리프 관(41,42) 내에는 릴리프 피스톤(43,44)이 각각 배치되며, 상기 릴리프 관(41,42)내에서 상기 릴리프 피스톤(43,44)을 탄성적으로 지지하는 탄성부재(45,46)가 각각 연결되어 이루어진다.Relief pistons 43 and 44 are disposed in the relief pipes 41 and 42, respectively, and elastic members for elastically supporting the relief pistons 43 and 44 in the relief pipes 41 and 42. 45 and 46 are respectively connected.

여기서, 상기 탄성부재(45,46)는 코일 스프링 등으로 이루어지는 것이 바람직하나, 이에 한정되는 것은 아니다.Here, the elastic members 45 and 46 are preferably made of a coil spring or the like, but is not limited thereto.

따라서, 상기한 바와 같은 구성을 갖는 V형 엔진의 냉각 시스템의 작동은, 도 2에서 도시한 바와 같이, 상기 워터펌프(11)의 좌,우측 냉각수 토출측의 형상이 엔진 및 엔진부품들과의 간섭 및 장착위치 등에 의해 상호 대칭적으로 형성되지 않은 상태로, 상기 워터펌프(11)가 구동하여 좌,우측 냉각수 공급관(7,9)을 통하여 좌,우측 냉각수 뱅크(3,5)로 각각 냉각수를 공급하는 과정에서, 상기 좌,우측 냉각수 토출측(P1,P2; 도 4참조)에는 냉각수량의 편차가 발생하게 되는데, 상기 도 2에서와 같이, 좌측 냉각수 공급관(7)의 냉각수 토출압(P1)이 우측 냉각수 공급관(9)의 냉각수 토출압(P2)보다 큰 경우(P1>P2)를 예로 하여 설명한다.Therefore, the operation of the cooling system of the V-type engine having the configuration as described above, as shown in Figure 2, the shape of the left and right cooling water discharge side of the water pump 11 interferes with the engine and engine parts And the water pump 11 is driven to the left and right cooling water banks 3 and 5 through the left and right cooling water supply pipes 7 and 9 without being formed symmetrically with each other by the mounting position and the like. In the process of supplying, the left and right cooling water discharge side (P1, P2; see Figure 4) deviation of the amount of cooling water occurs, as shown in Figure 2, the cooling water discharge pressure (P1) of the left cooling water supply pipe (7) The case where P1> P2 is larger than the cooling water discharge pressure P2 of this right cooling water supply pipe 9 is demonstrated as an example.

즉, 상기 좌측 냉각수 공급관(7)내의 냉각수 토출압(P1)은 좌측 압력보상밸브(31)의 릴리프 관(41)을 통하여 릴리프 피스톤(43)에 작용하여 그 탄성부재(45)의 탄성력을 극복하면서, 좌측 릴리프 피스톤(43)을 후방으로 밀어 상기 바이패스 관(35)을 개방시키게 된다.That is, the cooling water discharge pressure P1 in the left cooling water supply pipe 7 acts on the relief piston 43 through the relief pipe 41 of the left pressure compensation valve 31 to overcome the elastic force of the elastic member 45. While pushing the left relief piston 43 backward, the bypass pipe 35 is opened.

그러면, 상기 좌측 냉각수 공급관(7)내의 냉각수는 상기 바이패스 관(35)과 우측 리턴관(39)을 통하여 상대적으로 저압측인 우측 냉각수 공급관(9)으로 흐르게되어 상기 좌,우측 냉각수 공급관(7,9)내의 냉각수 공급압의 압력 밸런스를 이루게 되는 것이다.Then, the coolant in the left cooling water supply pipe (7) flows through the bypass pipe (35) and the right return pipe (39) to the right cooling water supply pipe (9), which is a relatively low pressure side, so that the left and right cooling water supply pipes (7) And pressure balance of the cooling water supply pressure in (9).

반대로, 우측 냉각수 공급관(9)의 냉각수 토출압이 좌측 냉각수 공급관(7)의 냉각수 토출압보다 큰 경우에는 상기 도 2에서 도시한 작동에 대하여 반대로 작동하여 좌,우측 냉각수 공급관(7,9)내의 냉각수 공급압의 압력 밸런스를 이루게 되는 것으로, 그 상세한 설명은 생략한다.On the contrary, when the cooling water discharge pressure of the right cooling water supply pipe 9 is greater than the cooling water discharge pressure of the left cooling water supply pipe 7, the operation is reversed to the operation shown in FIG. The pressure balance of the cooling water supply pressure is achieved, and a detailed description thereof is omitted.

상술한 바와 같이, 본 발명의 V형 엔진의 냉각 시스템에 의하면, 워터펌프의 좌,우측 냉각수 통로의 상호간 압력을 일정하게 맞추도록 상호 바이패스 관로로 연결되는 압력보상밸브를 좌,우측 냉각수 통로 상에 각각 설치하고, V형 엔진의 실린더 블록에 형성되는 좌,우측 냉각수 뱅크로 공급되는 냉각수의 압력차를 해소할 수 있도록 함으로써, 좌,우측 실린더의 냉각 성능을 동일하게 하며, 이에 따른 일측냉각수 뱅크내의 오버 히트 또는 오버 쿨링 현상을 방지할 수 있는 효과가 있다.As described above, according to the cooling system of the V-type engine of the present invention, the pressure compensation valve connected to the mutual bypass pipe to the pressure between the left and right cooling water passages of the water pump to be uniformly arranged on the left and right cooling water passages. Respectively installed in the cylinder block of the V-type engine, so that the pressure difference between the coolant supplied to the left and right coolant banks formed in the cylinder block of the V-type engine can be eliminated, thereby making the cooling performance of the left and right cylinders the same, and thus the one coolant bank There is an effect that can prevent overheating or overcooling phenomenon in the interior.

또한, 실린더 블록내 좌,우측 실린더간 냉각편차를 해소하여 엔진의 출력을 균일하게 함으로써, 정숙한 운행이 가능하게 하는 등의 효과가 있다.In addition, by reducing the cooling deviation between the left and right cylinders in the cylinder block and making the output of the engine uniform, there is an effect such as enabling quiet operation.

Claims (2)

V형 엔진의 실린더 블록에 형성되는 좌,우측 냉각수 뱅크와; 상기 좌,우측 냉각수 뱅크에 냉각수를 공급하기 위하여 좌,우측 냉각수 공급관을 통하여 설치되는 워터펌프와; 상기 좌,우측 냉각수 뱅크와 냉각수 배출관을 통하여 연결되어 실린더 블록을 냉각시키고 가열된 냉각수를 다시 냉각시켜 냉각수 유입관을 통하여 상기 워터펌프로 냉각수를 공급하여 주는 라디에이터와, 상기 냉각수의 초기 온도조절을 위하여 상기 냉각수 유입관의 일측에 장착되는 서모스탯을 포함하는 V형 엔진의 냉각 시스템에 있어서,Left and right cooling water banks formed in the cylinder block of the V-type engine; A water pump installed through left and right cooling water supply pipes to supply cooling water to the left and right cooling water banks; A radiator connected through the left and right cooling water banks and a cooling water discharge pipe to cool a cylinder block, cooling the heated cooling water again, and supplying the cooling water to the water pump through a cooling water inlet pipe, and for adjusting the initial temperature of the cooling water. In the cooling system of the V-type engine including a thermostat mounted on one side of the cooling water inlet pipe, 상기 워터펌프와 상기 좌,우측 냉각수 뱅크를 연결하는 좌,우측 냉각수 공급관 상에 각각 설치되는 좌,우측 압력보상밸브와;Left and right pressure compensation valves respectively installed on left and right cooling water supply pipes connecting the water pump and the left and right cooling water banks; 상기 좌,우측 압력보상밸브를 연결하는 바이패스 관과;A bypass pipe connecting the left and right pressure compensation valves; 상기 좌,우측 압력보상밸브와 상기 좌,우측 냉각수 공급관을 각각 연결하는 좌,우측 리턴관;Left and right return pipes connecting the left and right pressure compensation valves and the left and right cooling water supply pipes, respectively; 을 포함하는 것을 특징으로 하는 V형 엔진의 냉각 시스템.Cooling system of the V-type engine comprising a. 청구항 1에 있어서, 상기 좌,우측 압력보상밸브는The method of claim 1, wherein the left and right pressure compensation valve 상기 좌,우측 냉각수 공급관 상에 각각 형성되며, 일측에 상기 바이패스 관이 연결되고, 타측에는 상기 리턴관이 연결되는 릴리프 관과;Relief pipes respectively formed on the left and right cooling water supply pipes, the bypass pipe is connected to one side, and the return pipe is connected to the other side; 상기 릴리프 관 내에 구성되는 릴리프 피스톤과;A relief piston configured in the relief pipe; 상기 릴리프 관내에서 상기 릴리프 피스톤을 지지하는 탄성부재;An elastic member for supporting the relief piston in the relief pipe; 로 이루어지는 것을 특징으로 하는 V형 엔진의 냉각 시스템.Cooling system of the V-type engine, characterized in that consisting of.
KR1020020078095A 2002-12-10 2002-12-10 A cooling system of v-type engine KR20040050303A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100445158C (en) * 2004-11-26 2008-12-24 雅马哈发动机株式会社 Vehicle
KR101500391B1 (en) * 2013-12-20 2015-03-09 현대자동차 주식회사 Engine having multi flow rate control valve
CN107023373A (en) * 2016-02-01 2017-08-08 丰田自动车株式会社 Engine cooling apparatus

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JPH02140413A (en) * 1988-11-21 1990-05-30 Mazda Motor Corp Cooling device for v type engine
JPH03271517A (en) * 1990-03-20 1991-12-03 Mazda Motor Corp Cooling water circulating system
KR19980010860U (en) * 1996-08-13 1998-05-15 추호석 Water pump with pressure compensation valve
JP2000356131A (en) * 1999-06-14 2000-12-26 Isuzu Motors Ltd Cooling device of vee-engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02140413A (en) * 1988-11-21 1990-05-30 Mazda Motor Corp Cooling device for v type engine
JPH03271517A (en) * 1990-03-20 1991-12-03 Mazda Motor Corp Cooling water circulating system
KR19980010860U (en) * 1996-08-13 1998-05-15 추호석 Water pump with pressure compensation valve
JP2000356131A (en) * 1999-06-14 2000-12-26 Isuzu Motors Ltd Cooling device of vee-engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100445158C (en) * 2004-11-26 2008-12-24 雅马哈发动机株式会社 Vehicle
KR101500391B1 (en) * 2013-12-20 2015-03-09 현대자동차 주식회사 Engine having multi flow rate control valve
CN107023373A (en) * 2016-02-01 2017-08-08 丰田自动车株式会社 Engine cooling apparatus

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