WO2022145897A1 - Cylinder block and engine comprising same - Google Patents

Cylinder block and engine comprising same Download PDF

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Publication number
WO2022145897A1
WO2022145897A1 PCT/KR2021/019842 KR2021019842W WO2022145897A1 WO 2022145897 A1 WO2022145897 A1 WO 2022145897A1 KR 2021019842 W KR2021019842 W KR 2021019842W WO 2022145897 A1 WO2022145897 A1 WO 2022145897A1
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Prior art keywords
water
cylinder block
water jacket
cylinders
engine
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PCT/KR2021/019842
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French (fr)
Korean (ko)
Inventor
성하경
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현대두산인프라코어 주식회사
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Publication of WO2022145897A1 publication Critical patent/WO2022145897A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant 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
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/021—Cooling cylinders
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to a cylinder block having a water jacket and an engine having the same.
  • An engine is an internal combustion engine that converts thermal energy into mechanical work by burning fossil fuel and air in a cylinder to generate power. When a mixture of fuel and air is ignited in the cylinder and exploded, the piston reciprocates. And the crankshaft of the engine converts the reciprocating motion of the piston into rotational motion.
  • the engine of a vehicle has a thermal efficiency of about 15% to about 35%, and about 60% or more of the total thermal energy is consumed due to thermal energy and exhaust gas emitted from the engine to the outside.
  • maximizing the cooling characteristics of the cylinder block and cylinder head is important to increase the thermal efficiency of the engine and improve the durability of the engine.
  • a water jacket is formed inside the engine, and the coolant supplied by the water pump is supplied to the water jacket through the oil cooler.
  • the coolant that has passed through the oil cooler is connected to a specific point of the water jacket, the coolant flowing into the water jacket is evenly spread at the same flow rate inside the water jacket, so that it is not possible to uniformly cool the plurality of cylinders.
  • An embodiment of the present invention provides a cylinder block in which coolant uniformly flows and an engine having the same.
  • the cylinder block includes a plurality of cylinders, a water jacket surrounding each of the plurality of cylinders, and a water chamber connected to the water jacket.
  • the water jacket may be divided into a plurality of zones by the number of the plurality of cylinders, and one water chamber may be connected to the plurality of zones of the water jacket, respectively.
  • the water jacket and the water chamber may be connected through a plurality of water holes.
  • an area through which the coolant passes may be set in various ways according to positions so that the flow rate of the coolant moving from the water chamber to the plurality of zones of the water jacket is uniform.
  • the engine includes a cylinder block including a plurality of cylinders, a water jacket surrounding each of the plurality of cylinders, and a water chamber connected to the water jacket, and coolant to the water chamber of the cylinder block. and an oil cooler mounted in the water chamber of the cylinder block to cool the engine oil with the coolant introduced into the water chamber.
  • One side of the water jacket of the cylinder block may be connected to one side of the water chamber of the cylinder block, and the other side of the water jacket opposite to one side of the water jacket may be connected to the cylinder head.
  • the water jacket of the cylinder block may be divided into a plurality of zones by the number of the plurality of cylinders, and one of the water chambers may be connected to the plurality of zones of the water jacket, respectively.
  • the water jacket of the cylinder block and the water chamber may be connected through a plurality of water holes.
  • an area through which the coolant passes may be set in various ways according to positions so that the flow rate of the coolant moving from the water chamber to the plurality of zones of the water jacket is uniform.
  • the cylinder block may uniformly flow the coolant.
  • the engine may include a cylinder block capable of uniformly flowing the coolant.
  • FIG. 1 is a front view of an engine having a cylinder block according to an embodiment of the present invention.
  • FIG. 2 is a perspective view illustrating a water jacket and a water chamber formed inside the cylinder block of FIG. 1, an oil cooler connected thereto, and a water pump;
  • FIG. 3 is a cross-sectional view of the engine taken along line III-III of FIG. 1 .
  • FIG. 4 is a cross-sectional view of the engine taken along line IV-IV of FIG. 3 .
  • the embodiment of the present invention specifically represents an ideal embodiment of the present invention. As a result, various modifications of the diagram are expected. Therefore, the embodiment is not limited to a specific shape of the illustrated area, and includes, for example, a shape modification by manufacturing.
  • FIGS. 1 to 4 a cylinder block and an engine 101 having the same according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4 .
  • the engine 101 includes a cylinder block 201 , a water pump 300 , and an oil cooler 400 .
  • the engine 101 may further include an oil pan 800 coupled to a lower portion of the cylinder block 201 and a cylinder head coupled to an upper portion of the cylinder block 201, although not shown.
  • the cylinder block 201 according to an embodiment of the present invention, as shown in FIGS. 2 and 3, a plurality of cylinders 220 and a water jacket 230 surrounding each of the plurality of cylinders 220, and a water chamber 250 connected to the water jacket 230 .
  • the water jacket 230 surrounds each of the plurality of cylinders 220 to cool the cylinders 220 .
  • the water jacket 230 may be divided into a plurality of zones by the number of the plurality of cylinders 220 .
  • One side of the water chamber 250 is connected to one side of the water jacket 230 .
  • one water chamber 250 may be connected to a plurality of regions of the water jacket 230 , respectively.
  • the other side of the water jacket 230 opposite to one side of the water jacket 230 connected to the water chamber 250 may be connected to the cylinder head. That is, the coolant moves from the water chamber 250 to the cylinder head through the water jacket 230 .
  • the water chamber 250 may be positioned below the water jacket 230 , and the cylinder head may be positioned above the water jacket 230 .
  • the water jacket 230 and the water chamber 250 may be connected through a plurality of water holes 240 .
  • the area through which the coolant passes may be set in various ways depending on the location so that the flow rate of the coolant moving from the water chamber 250 to the plurality of zones of the water jacket 230 is uniform.
  • cooling water can be evenly supplied to the entire water jacket 230 through one water chamber 250 and a plurality of water holes 240 , the cooling performance of the plurality of cylinders 220 can be uniformly maintained. .
  • the cooling efficiency of the specific cylinder 220 is lowered due to a decrease in the flow rate of the coolant toward the water jacket 230 surrounding the specific cylinder 220 , and the specific cylinder 220 is overheated and cracks occur or to prevent damage.
  • the cooling water passage area of the plurality of water holes 240 is not formed to be the same, and the specific coolant passage area for each location of the water hole 240 is determined by the size of the engine 101 and the It may be set in various ways according to the number of cylinders 220 and the distribution shape of the cylinders 220 .
  • the water pump 300 supplies cooling water to the water chamber 250 of the cylinder block 201 .
  • the oil cooler 400 is mounted in the water chamber 250 of the cylinder block 201 to cool the engine oil with the coolant introduced into the water chamber 250 . That is, at least a portion of the oil cooler 400 may be inserted into the water chamber 250 .
  • the coolant when the water pump 300 supplies the coolant to the water chamber 250 of the cylinder block 201 , the coolant is installed in the water chamber 250 by the oil cooler 400 . After being cooled by the water, it is distributed to a plurality of zones of the water jacket 230 through a plurality of water holes 240 .
  • the cooling water may be uniformly supplied to the plurality of regions of the water jacket 230 at the same flow rate by adjusting the cooling water passage area of the water hole 240 .
  • the oil pan 800 is coupled to the lower portion of the cylinder block 201 .
  • the oil pan 800 collects coolant discharged or leaked from the cylinder head and cylinder block 201 .
  • the cylinder block 201 and the engine 101 having the same may uniformly flow coolant therein to improve cooling efficiency.
  • the cooling water cooled by the oil cooler 400 using the water chamber 250 can be distributed to a plurality of zones of the water jacket 230 , and the cooling water passage area of the water hole 240 is adjusted to control the water jacket ( 230), it is possible to evenly supply the cooling water to the plurality of zones at the same flow rate.
  • the cylinder block can be used to uniformly flow the coolant of the engine.

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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

The present invention relates to a cylinder block and an engine comprising same. The cylinder block according to an embodiment of the present invention comprises: a plurality of cylinders; a water jacket which surrounds each of the plurality of cylinders; and a water chamber which is connected to the water jacket.

Description

실린더 블록 및 이를 구비한 엔진Cylinder block and engine having same
본 발명은 워터 자켓을 갖는 실린더 블록 및 이를 구비한 엔진에 관한 것이다.The present invention relates to a cylinder block having a water jacket and an engine having the same.
엔진은 화석 연료와 공기를 실린더 내에서 연소시켜 열에너지를 기계적인 일로 바꾸어 동력을 얻는 내연기관이다. 실린더 내에서 연료와 공기의 혼합 기체를 점화시켜 폭발되면 피스톤이 왕복운동을 하게 된다. 그리고 엔진의 크랭크축은 피스톤의 왕복 운동을 회전 운동으로 바꿔준다.An engine is an internal combustion engine that converts thermal energy into mechanical work by burning fossil fuel and air in a cylinder to generate power. When a mixture of fuel and air is ignited in the cylinder and exploded, the piston reciprocates. And the crankshaft of the engine converts the reciprocating motion of the piston into rotational motion.
통상적으로 차량의 엔진은 15% 내지 35% 내외의 열효율을 갖는 것으로 알려져 있으며, 엔진에서 외부로 방출되는 열에너지와 배기가스 등으로 인하여 전체 열에너지 중 약 60% 이상이 소모되고 있다. 이러한 엔진에서 실린더 블록 및 실린더 헤드의 냉각 특성을 극대화하는 것은 엔진의 열효율을 높이고 엔진의 내구성을 향상시키기 위해 중요하다.In general, it is known that the engine of a vehicle has a thermal efficiency of about 15% to about 35%, and about 60% or more of the total thermal energy is consumed due to thermal energy and exhaust gas emitted from the engine to the outside. In such an engine, maximizing the cooling characteristics of the cylinder block and cylinder head is important to increase the thermal efficiency of the engine and improve the durability of the engine.
엔진을 효율적으로 냉각시키기 위해서 엔진 내부에 워터 자켓을 형성하고 있으며, 워터 펌프가 공급하는 냉각수가 오일 쿨러를 거쳐 워터 자켓으로 공급되고 있다.In order to efficiently cool the engine, a water jacket is formed inside the engine, and the coolant supplied by the water pump is supplied to the water jacket through the oil cooler.
그런데, 오일 쿨러를 거친 냉각수는 워터 자켓의 특정 지점과 연결되므로, 워터 자켓에 유입된 냉각수가 워터 자켓의 내부에서 동일한 유량으로 고르게 확산되어 복수의 실린더를 균일하게 냉각시키지 못하고 있다.However, since the coolant that has passed through the oil cooler is connected to a specific point of the water jacket, the coolant flowing into the water jacket is evenly spread at the same flow rate inside the water jacket, so that it is not possible to uniformly cool the plurality of cylinders.
이에, 냉각수가 유입되는 워터 자켓의 특정 지점에서 멀리 떨어질수록 냉각수의 유동이 상대적으로 약해져 냉각 효율이 저하될 수밖에 없으므로, 복수의 실린더 중 일부는 과열되어 크랙 및 파손 등의 하자가 발생되기 쉽다.Accordingly, as the distance from the specific point of the water jacket into which the cooling water is introduced is, the flow of the cooling water becomes relatively weak and the cooling efficiency is inevitably reduced.
또한, 냉각수가 유입되는 워터 자켓의 특정 지점에서 가까울수록 냉각수의 유동이 상대적으로 빨라져 빠른 유속에 의한 캐비테이션(cavitation)이 발생될 수 있으며, 이로 인해 엔진이 손상되는 문제점이 있다.In addition, the closer to the specific point of the water jacket where the coolant is introduced, the faster the flow of the coolant may be, which may cause cavitation due to the high flow rate, which may damage the engine.
본 발명의 실시예는 냉각수가 균일하게 유동하는 실린더 블록 및 이를 구비한 엔진을 제공한다.An embodiment of the present invention provides a cylinder block in which coolant uniformly flows and an engine having the same.
본 발명의 실시예에 따르면, 실린더 블록은 복수의 실린더와 상기 복수의 실린더를 각각 둘러싸는 워터 자켓 그리고 상기 워터 자켓에 연결된 워터 챔버를 포함한다.According to an embodiment of the present invention, the cylinder block includes a plurality of cylinders, a water jacket surrounding each of the plurality of cylinders, and a water chamber connected to the water jacket.
상기 워터 자켓은 상기 복수의 실린더의 수만큼 복수 구역으로 구획되고, 하나의 상기 워터 챔버가 상기 워터 자켓의 상기 복수 구역과 각각 연결될 수 있다.The water jacket may be divided into a plurality of zones by the number of the plurality of cylinders, and one water chamber may be connected to the plurality of zones of the water jacket, respectively.
상기 워터 자켓과 상기 워터 챔버는 복수의 워터 홀을 통해 연결될 수 있다.The water jacket and the water chamber may be connected through a plurality of water holes.
상기 복수의 워터 홀은 상기 워터 챔버에서 상기 워터 자켓의 상기 복수 구역으로 이동하는 냉각수의 유량이 균일하도록 냉각수가 통과하는 면적이 위치에 따라 다양하게 설정될 수 있다.In the plurality of water holes, an area through which the coolant passes may be set in various ways according to positions so that the flow rate of the coolant moving from the water chamber to the plurality of zones of the water jacket is uniform.
또한, 본 발명의 실시예에 따르면, 엔진은 복수의 실린더와 상기 복수의 실린더를 각각 둘러싸는 워터 자켓 그리고 상기 워터 자켓에 연결된 워터 챔버를 포함하는 실린더 블록과, 상기 실린더 블록의 상기 워터 챔버로 냉각수를 공급하는 워터 펌프, 그리고 상기 실린더 블록의 상기 워터 챔버에 장착되어 상기 워터 챔버에 유입된 냉각수로 엔진의 오일을 냉각시키는 오일 쿨러를 포함한다.In addition, according to an embodiment of the present invention, the engine includes a cylinder block including a plurality of cylinders, a water jacket surrounding each of the plurality of cylinders, and a water chamber connected to the water jacket, and coolant to the water chamber of the cylinder block. and an oil cooler mounted in the water chamber of the cylinder block to cool the engine oil with the coolant introduced into the water chamber.
상기 실린더 블록의 상기 워터 자켓의 일측은 상기 실린더 블록의 상기 워터 챔버의 일측에 연결되고, 상기 워터 자켓의 일측에 반대되는 상기 워터 자켓의 타측은 실린더 헤드와 연결될 수 있다.One side of the water jacket of the cylinder block may be connected to one side of the water chamber of the cylinder block, and the other side of the water jacket opposite to one side of the water jacket may be connected to the cylinder head.
상기 실린더 블록의 상기 워터 자켓은 상기 복수의 실린더의 수만큼 복수 구역으로 구획되고, 하나의 상기 워터 챔버가 상기 워터 자켓의 상기 복수 구역과 각각 연결될 수 있다.The water jacket of the cylinder block may be divided into a plurality of zones by the number of the plurality of cylinders, and one of the water chambers may be connected to the plurality of zones of the water jacket, respectively.
상기 실린더 블록의 상기 워터 자켓과 상기 워터 챔버는 복수의 워터 홀을 통해 연결될 수 있다.The water jacket of the cylinder block and the water chamber may be connected through a plurality of water holes.
상기 복수의 워터 홀은 상기 워터 챔버에서 상기 워터 자켓의 상기 복수 구역으로 이동하는 냉각수의 유량이 균일하도록 냉각수가 통과하는 면적이 위치에 따라 다양하게 설정될 수 있다.In the plurality of water holes, an area through which the coolant passes may be set in various ways according to positions so that the flow rate of the coolant moving from the water chamber to the plurality of zones of the water jacket is uniform.
본 발명의 실시예에 따르면, 실린더 블록은 냉각수를 균일하게 유동시킬 수 있다.According to an embodiment of the present invention, the cylinder block may uniformly flow the coolant.
또한, 본 발명의 실시예에 따르면, 엔진은 냉각수를 균일하게 유동시킬 수 있는 실린더 블록을 포함할 수 있다.In addition, according to an embodiment of the present invention, the engine may include a cylinder block capable of uniformly flowing the coolant.
도 1은 본 발명의 일 실시예에 따른 실린더 블록을 구비한 엔진의 정면도이다.1 is a front view of an engine having a cylinder block according to an embodiment of the present invention.
도 2는 도 1의 실린더 블록의 내부에 형성된 워터 자켓 및 워터 챔버와 이들과 연결된 오일 쿨러, 및 워터 펌프를 나타낸 사시도이다.FIG. 2 is a perspective view illustrating a water jacket and a water chamber formed inside the cylinder block of FIG. 1, an oil cooler connected thereto, and a water pump;
도 3은 도 1의 III-III선에 엔진의 따른 단면도이다.3 is a cross-sectional view of the engine taken along line III-III of FIG. 1 .
도 4는 도 3의 IV-IV선에 따른 엔진의 단면도이다.4 is a cross-sectional view of the engine taken along line IV-IV of FIG. 3 .
이하, 첨부한 도면을 참고로 하여 본 발명의 실시예에 대하여 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세히 설명한다. 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시예에 한정되지 않는다.Hereinafter, with reference to the accompanying drawings, the embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.
도면들은 개략적이고 축척에 맞게 도시되지 않았다는 것을 일러둔다. 도면에 있는 부분들의 상대적인 치수 및 비율은 도면에서의 명확성 및 편의를 위해 그 크기에 있어 과장되거나 축소되어 도시되었으며 임의의 치수는 단지 예시적인 것이지 한정적인 것은 아니다. 그리고 둘 이상의 도면에 나타나는 동일한 구조물, 요소 또는 부품에는 동일한 참조 부호가 유사한 특징을 나타내기 위해 사용된다.It is noted that the drawings are schematic and not drawn to scale. Relative dimensions and proportions of parts in the drawings are shown exaggerated or reduced in size for clarity and convenience in the drawings, and any dimensions are illustrative only and not limiting. In addition, the same reference numerals are used to indicate like features to the same structure, element, or part appearing in two or more drawings.
본 발명의 실시예는 본 발명의 이상적인 실시예를 구체적으로 나타낸다. 그 결과, 도해의 다양한 변형이 예상된다. 따라서 실시예는 도시한 영역의 특정 형태에 국한되지 않으며, 예를 들면 제조에 의한 형태의 변형도 포함한다.The embodiment of the present invention specifically represents an ideal embodiment of the present invention. As a result, various modifications of the diagram are expected. Therefore, the embodiment is not limited to a specific shape of the illustrated area, and includes, for example, a shape modification by manufacturing.
이하, 도 1 내지 도 4를 참조하여 본 발명의 일 실시예에 따른 실린더 블록 및 이를 구비한 엔진(101)을 설명한다.Hereinafter, a cylinder block and an engine 101 having the same according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4 .
도 1에 도시한 바와 같이, 엔진(101)은 실린더 블록(201), 워터 펌프(300), 및 오일 쿨러(400)를 포함한다.As shown in FIG. 1 , the engine 101 includes a cylinder block 201 , a water pump 300 , and an oil cooler 400 .
또한, 엔진(101)은 실린더 블록(201)의 하부에 결합된 오일팬(800)과, 도시하지는 않았으나 실린더 블록(201)의 상부에 결합되는 실린더 헤드를 더 포함할 수 있다.Also, the engine 101 may further include an oil pan 800 coupled to a lower portion of the cylinder block 201 and a cylinder head coupled to an upper portion of the cylinder block 201, although not shown.
본 발명의 일 실시예에 따른 실린더 블록(201)은, 도 2 및 도 3에 도시한 바와 같이, 복수의 실린더(220)와, 복수의 실린더(220)를 각각 둘러싸는 워터 자켓(230), 그리고 워터 자켓(230)에 연결된 워터 챔버(250)를 포함한다.The cylinder block 201 according to an embodiment of the present invention, as shown in FIGS. 2 and 3, a plurality of cylinders 220 and a water jacket 230 surrounding each of the plurality of cylinders 220, and a water chamber 250 connected to the water jacket 230 .
복수의 실린더(220) 내에서 연료와 공기가 혼합된 기체를 점화시켜 폭발되면 그 폭발력으로 피스톤이 왕복운동을 하게 된다. 이때, 실린더(220)에서는 많은 열에너지가 방출된다.When a gas in which fuel and air are mixed in the plurality of cylinders 220 is ignited and exploded, the piston reciprocates with the explosive force. At this time, a lot of thermal energy is emitted from the cylinder 220 .
워터 자켓(230)은 복수의 실린더(220)를 각각 둘러싸 실린더(220)를 냉각시킨다. 이때, 워터 자켓(230)은 복수의 실린더(220)의 수만큼 복수 구역으로 구획될 수 있다.The water jacket 230 surrounds each of the plurality of cylinders 220 to cool the cylinders 220 . In this case, the water jacket 230 may be divided into a plurality of zones by the number of the plurality of cylinders 220 .
워터 챔버(250)의 일측은 워터 자켓(230)의 일측에 연결된다. 구체적으로, 하나의 워터 챔버(250)가 워터 자켓(230)의 복수 구역과 각각 연결될 수 있다.One side of the water chamber 250 is connected to one side of the water jacket 230 . Specifically, one water chamber 250 may be connected to a plurality of regions of the water jacket 230 , respectively.
그리고 워터 챔버(250)와 연결된 워터 자켓(230)의 일측에 반대되는 워터 자켓(230)의 타측은 실린더 헤드와 연결될 수 있다. 즉, 냉각수는 워터 챔버(250)에서 워터 자켓(230)을 거쳐 실린더 헤드로 이동하게 된다.In addition, the other side of the water jacket 230 opposite to one side of the water jacket 230 connected to the water chamber 250 may be connected to the cylinder head. That is, the coolant moves from the water chamber 250 to the cylinder head through the water jacket 230 .
전술한 바와 같이, 워터 자켓(230)의 하방에는 워터 챔버(250)가 위치하고, 워터 자켓(230)의 상방에는 실린더 헤드가 위치할 수 있다.As described above, the water chamber 250 may be positioned below the water jacket 230 , and the cylinder head may be positioned above the water jacket 230 .
또한, 도 4에 도시한 바와 같이, 워터 자켓(230)과 워터 챔버(250)는 복수의 워터 홀(240)을 통해 연결될 수 있다.Also, as shown in FIG. 4 , the water jacket 230 and the water chamber 250 may be connected through a plurality of water holes 240 .
특히, 복수의 워터 홀(240)은 워터 챔버(250)에서 워터 자켓(230)의 복수 구역으로 이동하는 냉각수의 유량이 균일하도록 냉각수가 통과하는 면적이 위치에 따라 다양하게 설정될 수 있다.In particular, in the plurality of water holes 240 , the area through which the coolant passes may be set in various ways depending on the location so that the flow rate of the coolant moving from the water chamber 250 to the plurality of zones of the water jacket 230 is uniform.
이와 같이, 하나의 워터 챔버(250)와 복수의 워터 홀(240)을 통해 워터 자켓(230) 전체에 냉각수를 고르게 공급할 수 있으므로, 복수의 실린더(220)에 대한 냉각 성능을 균일하게 유지할 수 있다.In this way, since cooling water can be evenly supplied to the entire water jacket 230 through one water chamber 250 and a plurality of water holes 240 , the cooling performance of the plurality of cylinders 220 can be uniformly maintained. .
즉. 복수의 실린더(220) 중 특정 실린더(220)를 둘러싸는 워터 자켓(230)으로 향하는 냉각수의 유속 저하로 인해 특정 실린더(220)의 냉각 효율이 저하되어 특정 실린더(220)가 과열되어 크랙이 발생하거나 파손되는 것을 방지할 수 있다.In other words. Among the plurality of cylinders 220 , the cooling efficiency of the specific cylinder 220 is lowered due to a decrease in the flow rate of the coolant toward the water jacket 230 surrounding the specific cylinder 220 , and the specific cylinder 220 is overheated and cracks occur or to prevent damage.
본 발명의 일 실시예에서, 복수의 워터 홀(240)은 냉각수 통과 면적이 모두 동일하게 형성되지 않는 것이 특징이며, 구체적인 워터 홀(240)의 위치별 냉각수 통과 면적은 엔진(101)의 크기와 실린더(220)의 수 그리고 실린더(220)의 분포 형태 등에 따라 다양하게 설정될 수 있다.In one embodiment of the present invention, the cooling water passage area of the plurality of water holes 240 is not formed to be the same, and the specific coolant passage area for each location of the water hole 240 is determined by the size of the engine 101 and the It may be set in various ways according to the number of cylinders 220 and the distribution shape of the cylinders 220 .
워터 펌프(300)는 실린더 블록(201)의 워터 챔버(250)로 냉각수를 공급한다.The water pump 300 supplies cooling water to the water chamber 250 of the cylinder block 201 .
오일 쿨러(400)는 실린더 블록(201)의 워터 챔버(250)에 장착되어 워터 챔버(250)에 유입된 냉각수로 엔진의 오일을 냉각시킨다. 즉, 오일 쿨러(400)의 적어도 일부는 워터 챔버(250)의 내부에 삽입될 수 있다.The oil cooler 400 is mounted in the water chamber 250 of the cylinder block 201 to cool the engine oil with the coolant introduced into the water chamber 250 . That is, at least a portion of the oil cooler 400 may be inserted into the water chamber 250 .
이와 같이, 본 발명의 일 실시예에 따르면, 워터 펌프(300)가 냉각수를 실린더 블록(201)의 워터 챔버(250)로 공급하면, 냉각수가 워터 챔버(250)에 장착된 오일 쿨러(400)에 의해 냉각된 후 복수의 워터 홀(240)을 통해 워터 자켓(230)의 복수의 구역으로 분배된다. 이때, 본 발명의 일 실시예에서는, 워터 홀(240)의 냉각수 통과 면적을 조절하여 워터 자켓(230)의 복수의 구역에 냉각수가 동일한 유량으로 고르게 공급될 수 있다.As described above, according to an embodiment of the present invention, when the water pump 300 supplies the coolant to the water chamber 250 of the cylinder block 201 , the coolant is installed in the water chamber 250 by the oil cooler 400 . After being cooled by the water, it is distributed to a plurality of zones of the water jacket 230 through a plurality of water holes 240 . In this case, according to an embodiment of the present invention, the cooling water may be uniformly supplied to the plurality of regions of the water jacket 230 at the same flow rate by adjusting the cooling water passage area of the water hole 240 .
오일팬(800)은 실린더 블록(201)의 하부에 결합된다. 오일팬(800)은 실린더 헤드 및 실린더 블록(201)에서 배출 또는 누수된 냉각수를 수집한다.The oil pan 800 is coupled to the lower portion of the cylinder block 201 . The oil pan 800 collects coolant discharged or leaked from the cylinder head and cylinder block 201 .
이와 같은 구성에 의하여, 본 발명의 일 실시예에 따른 실린더 블록(201)과 이를 구비한 엔진(101)은 내부에서 냉각수를 균일하게 유동시켜 냉각 효율을 향상시킬 수 있다.With such a configuration, the cylinder block 201 and the engine 101 having the same according to an embodiment of the present invention may uniformly flow coolant therein to improve cooling efficiency.
즉, 워터 챔버(250)를 사용하여 오일 쿨러(400)가 냉각시킨 냉각수를 워터 자켓(230)의 복수의 구역으로 분배할 수 있으며, 워터 홀(240)의 냉각수 통과 면적을 조절하여 워터 자켓(230)의 복수의 구역에 냉각수를 동일한 유량으로 고르게 공급할 수 있다.That is, the cooling water cooled by the oil cooler 400 using the water chamber 250 can be distributed to a plurality of zones of the water jacket 230 , and the cooling water passage area of the water hole 240 is adjusted to control the water jacket ( 230), it is possible to evenly supply the cooling water to the plurality of zones at the same flow rate.
이에, 워터 자켓(230)의 특정 위치에 공급되는 냉각수의 유량이 부족하여 복수의 실린더(200) 중 특정 실린더(200)가 과열되는 것을 방지할 수 있을 뿐만 아니라 워터 자켓(230)의 다른 특정 위치에 유입된 냉각수의 유속이 지나치게 빨라 캐비테이션(cavitation)이 발생되는 것도 방지할 수 있다.Accordingly, it is possible to prevent the specific cylinder 200 from being overheated among the plurality of cylinders 200 due to insufficient flow rate of the cooling water supplied to the specific position of the water jacket 230 as well as other specific positions of the water jacket 230 . It is also possible to prevent cavitation from occurring because the flow rate of the cooling water introduced into the system is too high.
이상 첨부된 도면을 참조하여 본 발명의 실시예를 설명하였지만, 본 발명이 속하는 기술분야의 당업자는 본 발명이 그 기술적 사상이나 필수적 특징을 변경하지 않고 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다.Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential characteristics thereof. will be.
그러므로 이상에서 기술한 실시예는 모든 면에서 예시적인 것이며 한정적인 것이 아닌 것으로서 이해되어야 하고, 본 발명의 범위는 상기 상세한 설명은 후술하는 특허청구범위에 의하여 나타내어지며, 특허청구범위의 의미 및 범위 그리고 그 등가개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims, the meaning and scope of the claims, and All changes or modifications derived from the equivalent concept should be construed as being included in the scope of the present invention.
< 부호의 설명 >< Explanation of symbols >
101: 엔진101: engine
201: 실린더 블록201: cylinder block
220: 실린더220: cylinder
230: 워터 자켓230: water jacket
240: 워터 홀240: water hole
250: 워터 챔버250: water chamber
300: 워터 펌프300: water pump
400: 오일 쿨러400: oil cooler
800: 오일팬800: oil pan
본 발명의 실시예에 따르면, 실린더 블록은 엔진의 냉각수를 균일하게 유동시키는데 사용될 수 있다.According to an embodiment of the present invention, the cylinder block can be used to uniformly flow the coolant of the engine.

Claims (9)

  1. 복수의 실린더와 상기 복수의 실린더를 각각 둘러싸는 워터 자켓 그리고 상기 워터 자켓에 연결된 워터 챔버를 포함하는 실린더 블록.A cylinder block comprising a plurality of cylinders, a water jacket surrounding each of the plurality of cylinders, and a water chamber connected to the water jacket.
  2. 제1항에 있어서,The method of claim 1,
    상기 워터 자켓은 상기 복수의 실린더의 수만큼 복수 구역으로 구획되고,The water jacket is divided into a plurality of zones by the number of the plurality of cylinders,
    하나의 상기 워터 챔버가 상기 워터 자켓의 상기 복수 구역과 각각 연결되는 것을 특징으로 하는 실린더 블록.A cylinder block, characterized in that one said water chamber is respectively connected to said plurality of zones of said water jacket.
  3. 제2항에 있어서,3. The method of claim 2,
    상기 워터 자켓과 상기 워터 챔버는 복수의 워터 홀을 통해 연결된 것을 특징으로 하는 실린더 블록.The cylinder block, characterized in that the water jacket and the water chamber is connected through a plurality of water holes.
  4. 제3항에 있어서,4. The method of claim 3,
    상기 복수의 워터 홀은 상기 워터 챔버에서 상기 워터 자켓의 상기 복수 구역으로 이동하는 냉각수의 유량이 균일하도록 냉각수가 통과하는 면적이 위치에 따라 다양하게 설정된 것을 특징으로 하는 실린더 블록.In the plurality of water holes, an area through which the coolant passes is set in various ways according to positions so that the flow rate of the coolant moving from the water chamber to the plurality of zones of the water jacket is uniform.
  5. 복수의 실린더와 상기 복수의 실린더를 각각 둘러싸는 워터 자켓 그리고 상기 워터 자켓에 연결된 워터 챔버를 포함하는 실린더 블록;a cylinder block including a plurality of cylinders, a water jacket surrounding the plurality of cylinders, respectively, and a water chamber connected to the water jacket;
    상기 실린더 블록의 상기 워터 챔버로 냉각수를 공급하는 워터 펌프; 및a water pump for supplying cooling water to the water chamber of the cylinder block; and
    상기 실린더 블록의 상기 워터 챔버에 장착되어 상기 워터 챔버에 유입된 냉각수로 엔진의 오일을 냉각시키는 오일 쿨러An oil cooler installed in the water chamber of the cylinder block to cool the engine oil with the coolant introduced into the water chamber
    를 포함하는 엔진.engine containing
  6. 제5항에 있어서,6. The method of claim 5,
    상기 실린더 블록의 상기 워터 자켓의 일측은 상기 실린더 블록의 상기 워터 챔버의 일측에 연결되고, 상기 워터 자켓의 일측에 반대되는 상기 워터 자켓의 타측은 실린더 헤드와 연결되는 것을 특징으로 하는 엔진.One side of the water jacket of the cylinder block is connected to one side of the water chamber of the cylinder block, and the other side of the water jacket opposite to one side of the water jacket is connected to the cylinder head.
  7. 제5항에 있어서,6. The method of claim 5,
    상기 실린더 블록의 상기 워터 자켓은 상기 복수의 실린더의 수만큼 복수 구역으로 구획되고,The water jacket of the cylinder block is divided into a plurality of zones by the number of the plurality of cylinders,
    하나의 상기 워터 챔버가 상기 워터 자켓의 상기 복수 구역과 각각 연결되는 것을 특징으로 하는 엔진.and one said water chamber is each connected to said plurality of zones of said water jacket.
  8. 제7항에 있어서,8. The method of claim 7,
    상기 실린더 블록의 상기 워터 자켓과 상기 워터 챔버는 복수의 워터 홀을 통해 연결된 것을 특징으로 하는 엔진.The engine according to claim 1, wherein the water jacket of the cylinder block and the water chamber are connected through a plurality of water holes.
  9. 제7항에 있어서,8. The method of claim 7,
    상기 복수의 워터 홀은 상기 워터 챔버에서 상기 워터 자켓의 상기 복수 구역으로 이동하는 냉각수의 유량이 균일하도록 냉각수가 통과하는 면적이 위치에 따라 다양하게 설정된 것을 특징으로 하는 엔진.In the plurality of water holes, an area through which coolant flows is set to be various according to positions so that the flow rate of coolant moving from the water chamber to the plurality of zones of the water jacket is uniform.
PCT/KR2021/019842 2020-12-30 2021-12-24 Cylinder block and engine comprising same WO2022145897A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009091978A (en) * 2007-10-09 2009-04-30 Yanmar Co Ltd Engine
KR20090049809A (en) * 2007-11-14 2009-05-19 현대자동차주식회사 Engine equipped with cooling water chamber
JP2009257227A (en) * 2008-04-17 2009-11-05 Toyota Motor Corp Internal combustion engine
KR20200048578A (en) * 2018-10-30 2020-05-08 현대자동차주식회사 Cooling system for engine
KR20200049982A (en) * 2018-10-30 2020-05-11 현대자동차주식회사 Cooling system for engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009091978A (en) * 2007-10-09 2009-04-30 Yanmar Co Ltd Engine
KR20090049809A (en) * 2007-11-14 2009-05-19 현대자동차주식회사 Engine equipped with cooling water chamber
JP2009257227A (en) * 2008-04-17 2009-11-05 Toyota Motor Corp Internal combustion engine
KR20200048578A (en) * 2018-10-30 2020-05-08 현대자동차주식회사 Cooling system for engine
KR20200049982A (en) * 2018-10-30 2020-05-11 현대자동차주식회사 Cooling system for engine

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