KR20100008470A - Cooling structure of hybrid transmission - Google Patents

Cooling structure of hybrid transmission Download PDF

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KR20100008470A
KR20100008470A KR1020080068965A KR20080068965A KR20100008470A KR 20100008470 A KR20100008470 A KR 20100008470A KR 1020080068965 A KR1020080068965 A KR 1020080068965A KR 20080068965 A KR20080068965 A KR 20080068965A KR 20100008470 A KR20100008470 A KR 20100008470A
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South Korea
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rotor shaft
retainer
hybrid transmission
cooling structure
discharge port
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KR1020080068965A
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Korean (ko)
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KR101428081B1 (en
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김경하
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현대자동차주식회사
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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
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

PURPOSE: A cooling structure of a hybrid transmission is provided to prevent the damage of an engine clutch and to prevent the performance degradation of a hybrid transmission. CONSTITUTION: A cooling structure of a hybrid transmission is composed of a rotor shaft(3), an engine clutch(7), and a centrifugal outlet(9). A rotor(1) of a motor assembly is connected to the rotor shaft. The engine clutch is inserted so that the outer side of a retainer(5) is spaced from the inner side of the rotor shaft. The centrifugal outlet connects a space formed between the outer side of the retainer and the inner side of the rotor shaft toward the radial outside of the rotor shaft.

Description

하이브리드 변속기의 냉각구조{Cooling Structure of Hybrid Transmission}Cooling Structure of Hybrid Transmission

본 발명은 차량에 탑재되는 하이브리드 변속기의 냉각구조에 관한 것으로서, 보다 상세하게는 변속기어셈블리에 엔진 및 모터의 동력을 전달하도록 구비된 엔진클러치를 냉각하는 기술에 관련한 것이다.The present invention relates to a cooling structure of a hybrid transmission mounted on a vehicle, and more particularly, to a technology for cooling an engine clutch provided to transmit power of an engine and a motor to a transmission assembly.

도 1은 종래의 하이브리드 변속기의 냉각구조를 설명한 도면이다.1 is a view illustrating a cooling structure of a conventional hybrid transmission.

엔진클러치(500)는 엔진과 연결되는 허브(502)와 변속기어셈블리의 기어열에 연결되는 리테이너(504) 사이에 다판클러치(506)가 구비되어, 유압에 의해 피스톤이 작동하여 동력을 가변하여 전달할 수 있도록 되어 있으며, 상기 리테이너(504)는 모터어셈블리의 로터축(508)에 스플라인으로 결합되어 모터로부터의 동력을 상기 변속기어셈블리로 전달할 수 있도록 되어 있다.The engine clutch 500 is provided with a multi-plate clutch 506 between the hub 502 connected to the engine and the retainer 504 connected to the gear train of the transmission assembly, and the piston is operated by hydraulic pressure to transmit the variable power. The retainer 504 is splined to the rotor shaft 508 of the motor assembly to transfer power from the motor to the transmission assembly.

도시되지 않은 변속기어셈블리의 입력축은 상기 리테이너(504)의 리테이너보스(510)와 결합되고, 상기 변속기어셈블리의 입력축 내부를 통해 공급된 오일은 상기 리테이너보스(510)의 내부로부터 반경방향으로 진행하여 화살표로 표시한 바와 같은 경로를 통해 상기 다판클러치(506)를 냉각시킨 후, 상기 리테이너(504)에 형 성된 구멍을 통해 빠져나가도록 되어 있다.The input shaft of the transmission assembly (not shown) is coupled to the retainer boss 510 of the retainer 504, and the oil supplied through the input shaft interior of the transmission assembly travels radially from the inside of the retainer boss 510 to be arrowed. After cooling the multi-plate clutch 506 through a path as indicated by, it exits through the hole formed in the retainer 504.

상기 리테이너(504)를 빠져 나온 오일은 상기 로터축(508)에 의해 진행 경로가 90도 가까이 변환되어 흘러나가도록 되어 있고, 이후 오일의 배출을 위한 별다른 구성은 구비되어 있지 않다.The oil exiting the retainer 504 is made to flow out by 90 degrees by the rotor shaft 508, and there is no configuration for discharging oil thereafter.

따라서, 상기와 같이 리테이너(504)를 빠져 나온 오일은 상기 리테이너(504)와 로터축(508) 사이의 공간에서 비교적 장시간 머무르면서 서서히 빠져나가게 되는데, 이와 같이 상기 리테이너(504)를 빠져 나온 오일이 보다 원활히 유동하지 못하고 머무르게 되면, 상기 엔진클러치(500)의 냉각성능을 떨어뜨리게 되어 엔진클러치(500)의 소손 및 나아가 하이브리드 변속기 전체의 성능저하를 초래하게 될 염려가 있다.Therefore, the oil exiting the retainer 504 as described above is gradually escaped while staying in the space between the retainer 504 and the rotor shaft 508 for a relatively long time, and thus the oil exiting the retainer 504 If it does not flow smoothly, there is a risk that the cooling performance of the engine clutch 500 is lowered, causing burnout of the engine clutch 500 and further degrading the performance of the entire hybrid transmission.

본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 하이브리드 변속기에서 엔진으로부터의 동력을 변속기어셈블리의 입력축으로 전달하는 엔진클러치의 냉각작용이 더욱 원활하게 이루어지도록 하여, 엔진클러치의 손상을 방지하고 나아가 하이브리드 변속기 전체의 성능 저하를 방지함으로써, 내구성을 향상시키고 보다 안정된 작동성을 제공할 수 있도록 한 하이브리드 변속기의 냉각구조를 제공함에 그 목적이 있다.The present invention has been made in order to solve the above problems, in the hybrid transmission to ensure that the engine clutch which transmits the power from the engine to the input shaft of the transmission assembly more smoothly, preventing damage to the engine clutch Furthermore, it is an object of the present invention to provide a cooling structure of the hybrid transmission that can prevent the performance degradation of the entire hybrid transmission, thereby improving durability and providing more stable operability.

상기한 바와 같은 목적을 달성하기 위하여 안출된 본 발명 하이브리드 변속 기의 냉각구조는The cooling structure of the present invention the hybrid transmission devised to achieve the object as described above

모터어셈블리의 로터가 연결된 로터축과;A rotor shaft to which a rotor of the motor assembly is connected;

상기 로터축의 내측에 리테이너의 외측면이 이격되게 삽입되고 상기 리테이너가 상기 로터축과 상호 회전 구속되도록 연결되는 엔진클러치와;An engine clutch in which the outer surface of the retainer is spaced apart from the inside of the rotor shaft and connected to the retainer so as to be rotationally constrained with the rotor shaft;

상기 리테이너의 외측면과 상기 로터축의 내측 사이에 형성되는 공간을 상기 로터축의 반경방향 외측으로 연통시키도록 형성된 원심배출구;A centrifugal discharge port configured to communicate a space formed between an outer surface of the retainer and an inner side of the rotor shaft radially outward of the rotor shaft;

를 포함하여 구성된 것을 특징으로 한다.Characterized in that configured to include.

상기 원심배출구는 상기 리테이너의 외측면과 상기 로터축의 내측 사이에 형성되는 공간의 일측단에서 상기 로터축의 반경방향으로 연결되어 형성되는 구조로 할 수 있다.The centrifugal discharge port may be configured to be connected in the radial direction of the rotor shaft at one end of the space formed between the outer surface of the retainer and the inner side of the rotor shaft.

상기 원심배출구는 상기 로터축의 원주면을 따라 다수개가 규칙적으로 형성된 구조로 할 수 있다.The centrifugal discharge port may have a structure in which a plurality of centrifugal discharge ports are regularly formed along the circumferential surface of the rotor shaft.

상기 원심배출구는 상기 로터축의 단부에 축방향을 따라 돌출된 다수의 요철 형상으로 형성된 크라운부와, 상기 크라운부의 요철에 삽입되도록 상기 엔진클러치의 리테이너에서 반경방향을 따라 일체로 연장되는 다수의 상대요철 형상의 방사돌출부에 의해 형성되는 구조로 할 수 있다.The centrifugal discharge port has a crown portion formed in a plurality of irregularities protruding in the axial direction at the end of the rotor shaft, and a plurality of relative irregularities extending integrally along the radial direction from the retainer of the engine clutch so as to be inserted into the irregularities of the crown portion. It can be set as a structure formed by the radial projection part of shape.

상기 크라운부에는 상기 리테이너가 축방향으로 삽입되는 깊이를 제한하여 상기 원심배출구가 안정되게 형성되도록 하는 축방향제한부가 다수 구비되고;The crown portion is provided with a plurality of axial limiting portion for limiting the depth to which the retainer is inserted in the axial direction so that the centrifugal discharge port is formed stably;

상기 방사돌출부에는 상기 로터축의 내측에서 상기 리테이너의 반경방향으로 상기 로터축을 지지하는 반경지지부가 다수 구비된 구조로 할 수 있다.The radial protrusion may have a structure in which a plurality of radial supports are provided to support the rotor shaft in the radial direction of the retainer inside the rotor shaft.

본 발명은 하이브리드 변속기에서 엔진으로부터의 동력을 변속기어셈블리의 입력축으로 전달하는 엔진클러치의 냉각작용이 더욱 원활하게 이루어지도록 하여, 엔진클러치의 손상을 방지하고 나아가 하이브리드 변속기 전체의 성능 저하를 방지함으로써, 내구성을 향상시키고 보다 안정된 작동성을 제공할 수 있도록 한다.The present invention provides a more smooth cooling operation of the engine clutch which transmits power from the engine to the input shaft of the transmission assembly in the hybrid transmission, thereby preventing damage to the engine clutch and further preventing degradation of the performance of the entire hybrid transmission. To improve the performance and provide more stable operation.

도 2와 도 3을 참조하면, 본 발명 실시예는 모터어셈블리의 로터(1)가 연결된 로터축(3)과; 상기 로터축(3)의 내측에 리테이너(5)의 외측면이 이격되게 삽입되고 상기 리테이너(5)가 상기 로터축(3)과 상호 회전 구속되도록 연결되는 엔진클러치(7)와; 상기 리테이너(5)의 외측면과 상기 로터축(3)의 내측 사이에 형성되는 공간을 상기 로터축(3)의 반경방향 외측으로 연통시키도록 형성된 원심배출구(9)를 포함하여 구성된다.2 and 3, an embodiment of the present invention includes: a rotor shaft 3 to which a rotor 1 of a motor assembly is connected; An engine clutch (7) connected to the inner side of the rotor shaft (3) so that the outer surface of the retainer (5) is spaced apart and the retainer (5) is connected to the rotor shaft (3) to be rotationally constrained; It comprises a centrifugal discharge port (9) formed so as to communicate a space formed between the outer surface of the retainer (5) and the inner side of the rotor shaft (3) radially outward of the rotor shaft (3).

상기 로터축(3)에는 상기 엔진클러치(7)가 내부에 삽입되도록 원통형으로 형성된 부분이 구비되어 있어서, 상기 로터축(3)의 내부에 상기 엔진클러치(7)가 삽입되는데, 상기 엔진클러치(7)의 리테이너(5) 외측면과 상기 로터축(3)의 내부 사이는 서로 이격되어 상기 엔진클러치(7)를 냉각시키는 오일의 유동이 가능하도록 되어 있다.The rotor shaft (3) is provided with a portion formed in a cylindrical shape so that the engine clutch (7) is inserted therein, the engine clutch (7) is inserted into the rotor shaft (3), the engine clutch ( The outer surface of the retainer 5 of 7) and the inside of the rotor shaft 3 are spaced apart from each other to allow the flow of oil for cooling the engine clutch 7.

상기 원심배출구(9)는 상기 리테이너(5)의 외측면과 상기 로터축(3)의 내측 사이에 형성되는 공간의 일측단에서 상기 로터축(3)의 반경방향으로 연결되어 형성된다.The centrifugal discharge port 9 is formed in a radial direction of the rotor shaft 3 at one end of the space formed between the outer surface of the retainer 5 and the inner side of the rotor shaft 3.

즉, 상기 엔진클러치(7)가 삽입될 수 있도록 상기 로터축(3)의 개구된 단부에 상기 원심배출구(9)가 형성되도록 하는 것이다.That is, the centrifugal discharge port 9 is formed at the open end of the rotor shaft 3 so that the engine clutch 7 can be inserted.

상기 원심배출구(9)는 상기 로터축(3)의 원주면을 따라 다수개가 규칙적으로 형성되는데, 상기 로터축(3)의 단부에 축방향을 따라 돌출된 다수의 요철 형상으로 형성된 크라운부(11)와, 상기 크라운부(11)의 요철에 삽입되도록 상기 엔진클러치(7)의 리테이너(5)에서 반경방향을 따라 일체로 연장되는 다수의 상대요철 형상의 방사돌출부(13)에 의해 형성된다.The centrifugal discharge port (9) is regularly formed along the circumferential surface of the rotor shaft (3), the crown portion 11 formed in a plurality of irregularities protruding in the axial direction at the end of the rotor shaft (3) ) And a plurality of radially projecting portions 13 having a relative uneven shape extending integrally along the radial direction from the retainer 5 of the engine clutch 7 so as to be inserted into the unevenness of the crown portion 11.

상기 크라운부(11)에는 상기 리테이너(5)가 축방향으로 삽입되는 깊이를 제한하여 상기 원심배출구(9)가 안정되게 형성되도록 하는 축방향제한부(15)가 다수 구비되고, 상기 방사돌출부(13)에는 상기 로터축(3)의 내측에서 상기 리테이너(5)의 반경방향으로 상기 로터축(3)을 지지하는 반경지지부(17)가 다수 구비된다.The crown portion 11 is provided with a plurality of axial limiting portion 15 for limiting the depth to which the retainer 5 is inserted in the axial direction so that the centrifugal discharge port 9 is stably formed, the radial projection ( 13 is provided with a plurality of radial supports 17 for supporting the rotor shaft 3 in the radial direction of the retainer 5 inside the rotor shaft 3.

따라서, 상기 로터축(3)과 엔진클러치(7)는 상기 축방향제한부(15) 및 반경지지부(17)에 의해 축방향과 반경방향으로 서로 견고한 결합상태를 구비하면서 상기 원심배출구(9)를 상기 로터축(3)의 원주방향에 고르게 배치한 상태를 형성하게 된다.Accordingly, the rotor shaft 3 and the engine clutch 7 have a state in which the rotor shaft 3 and the engine clutch 7 are firmly coupled to each other in the axial direction and the radial direction by the axial limiting part 15 and the radial support part 17. Is formed evenly arranged in the circumferential direction of the rotor shaft (3).

상기한 바와 같이 구성된 하이브리드 변속기의 냉각구조에서는, 상기 엔진클 러치(7)의 리테이너보스(19)에 결합되는 변속기어셈블리의 입력축 내부로 공급되는 오일이 도 2에 화살표로 도시된 경로를 따라 이동하면서 상기 엔진클러치(7)를 냉각시키게 된다.In the cooling structure of the hybrid transmission configured as described above, the oil supplied into the input shaft of the transmission assembly coupled to the retainer boss 19 of the engine clutch 7 moves along the path shown by the arrow in FIG. The engine clutch 7 is cooled.

즉, 변속기어셈블리의 입력축으로부터 공급된 오일은 상기 리테이너보스(19)를 통해 허브(21)와 피스톤스프링시트(23) 사이를 반경방향으로 이동하여, 다판클러치(25)를 냉각시킨 후 리테이너(5)의 외주면으로 이동하게 된다.That is, the oil supplied from the input shaft of the transmission assembly moves radially between the hub 21 and the piston spring seat 23 through the retainer boss 19, cools the multi-plate clutch 25, and retains the retainer 5. ) Will move to the outer circumferential surface.

상기와 같이 이동된 오일은 상기 리테이너(5)와 로터축(3)의 회전에 의한 원심력으로 상기 원심배출구(9)를 통해 배출되게 된다.The oil moved as described above is discharged through the centrifugal discharge port 9 by centrifugal force by the rotation of the retainer 5 and the rotor shaft 3.

따라서, 상기 리테이너(5)와 로터축(3) 사이의 오일은 상기한 바와 같은 원심배출구(9)를 향한 일정한 흐름이 형성되어 원활하게 이동하면서, 상기 엔진클러치(7)의 외측을 냉각시키고 상기 원심배출구(9)로 배출되게 된다.Accordingly, the oil between the retainer 5 and the rotor shaft 3 forms a constant flow toward the centrifugal discharge port 9 as described above to smoothly move, while cooling the outside of the engine clutch 7 and It is discharged to the centrifugal discharge port (9).

결과적으로 상기 엔진클러치(7)는 보다 원활한 오일의 흐름에 의해 효과적인 냉각상태를 보장 받을 수 있어서, 엔진클러치(7)의 소손 등이 방지되므로 그 내구성이 향상되게 되고 나아가 하이브리드 변속기의 안정된 작동성에 기여하게 된다.As a result, the engine clutch 7 can be guaranteed an effective cooling state by a smoother flow of oil, the burnout of the engine clutch 7 is prevented, so that its durability is improved and further contributes to the stable operability of the hybrid transmission. Done.

또한, 상기한 바와 같이 상기 원심배출구(9)를 통해 배출되는 오일은 반경방향으로 비산되면서 모터어셈블리의 스테이터(27)를 효과적으로 냉각시킴으로써, 모터의 효율을 향상시킬 수 있어서, 하이브리드 변속기의 작동 효율 향상에도 기여하게 된다.In addition, as described above, the oil discharged through the centrifugal discharge port 9 is scattered in the radial direction to effectively cool the stator 27 of the motor assembly, thereby improving the efficiency of the motor, thereby improving the operating efficiency of the hybrid transmission. Will contribute to.

도 1은 종래 기술에 의한 하이브리드 변속기의 냉각구조를 설명한 도면,1 is a view illustrating a cooling structure of a hybrid transmission according to the prior art,

도 2와 도 3은 본 발명에 따른 하이브리드 변속기의 냉각구조를 설명한 도면이다.2 and 3 are views illustrating a cooling structure of the hybrid transmission according to the present invention.

<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>

1; 로터 3; 로터축One; Rotor 3; Rotor shaft

5; 리테이너 7; 엔진클러치5; Retainer 7; Engine clutch

9; 원심배출구 11; 크라운부9; Centrifugal outlet 11; Crown part

13; 방사돌출부 15; 축방향제한부13; Radiation projection 15; Axial Limit

17; 반경지지부 19; 리테이너보스17; Radial support 19; Retainer Boss

21; 허브 23; 피스톤스프링시트21; Hub 23; Piston Spring Seat

25; 다판클러치 27; 스테이터25; Multi-plate clutch 27; Stator

Claims (5)

모터어셈블리의 로터가 연결된 로터축과;A rotor shaft to which a rotor of the motor assembly is connected; 상기 로터축의 내측에 리테이너의 외측면이 이격되게 삽입되고 상기 리테이너가 상기 로터축과 상호 회전 구속되도록 연결되는 엔진클러치와;An engine clutch in which the outer surface of the retainer is spaced apart from the inside of the rotor shaft and connected to the retainer so as to be rotationally constrained with the rotor shaft; 상기 리테이너의 외측면과 상기 로터축의 내측 사이에 형성되는 공간을 상기 로터축의 반경방향 외측으로 연통시키도록 형성된 원심배출구;A centrifugal discharge port configured to communicate a space formed between an outer surface of the retainer and an inner side of the rotor shaft radially outward of the rotor shaft; 를 포함하여 구성된 것을 특징으로 하는 하이브리드 변속기의 냉각구조.Cooling structure of the hybrid transmission, characterized in that configured to include. 청구항 1에 있어서,The method according to claim 1, 상기 원심배출구는 상기 리테이너의 외측면과 상기 로터축의 내측 사이에 형성되는 공간의 일측단에서 상기 로터축의 반경방향으로 연결되어 형성되는 것The centrifugal discharge port is formed to be connected in the radial direction of the rotor shaft at one end of the space formed between the outer surface of the retainer and the inner side of the rotor shaft 을 특징으로 하는 하이브리드 변속기의 냉각구조.Cooling structure of the hybrid transmission characterized in that. 청구항 2에 있어서,The method according to claim 2, 상기 원심배출구는 상기 로터축의 원주면을 따라 다수개가 규칙적으로 형성된 것The plurality of centrifugal discharge port is formed regularly along the circumferential surface of the rotor shaft 을 특징으로 하는 하이브리드 변속기의 냉각구조.Cooling structure of the hybrid transmission characterized in that. 청구항 3에 있어서, The method according to claim 3, 상기 원심배출구는 상기 로터축의 단부에 축방향을 따라 돌출된 다수의 요철 형상으로 형성된 크라운부와, 상기 크라운부의 요철에 삽입되도록 상기 엔진클러치의 리테이너에서 반경방향을 따라 일체로 연장되는 다수의 상대요철 형상의 방사돌출부에 의해 형성되는 것The centrifugal discharge port has a crown portion formed in a plurality of irregularities protruding in the axial direction at the end of the rotor shaft, and a plurality of relative irregularities extending integrally along the radial direction from the retainer of the engine clutch so as to be inserted into the irregularities of the crown portion. Formed by radial projections 을 특징으로 하는 하이브리드 변속기의 냉각구조.Cooling structure of the hybrid transmission characterized in that. 청구항 4에 있어서,The method according to claim 4, 상기 크라운부에는 상기 리테이너가 축방향으로 삽입되는 깊이를 제한하여 상기 원심배출구가 안정되게 형성되도록 하는 축방향제한부가 다수 구비되고;The crown portion is provided with a plurality of axial limiting portion for limiting the depth to which the retainer is inserted in the axial direction so that the centrifugal discharge port is formed stably; 상기 방사돌출부에는 상기 로터축의 내측에서 상기 리테이너의 반경방향으로 상기 로터축을 지지하는 반경지지부가 다수 구비된 것The radial projection portion is provided with a plurality of radial support portion for supporting the rotor shaft in the radial direction of the retainer from the inside of the rotor shaft 을 특징으로 하는 하이브리드 변속기의 냉각구조.Cooling structure of the hybrid transmission characterized in that.
KR1020080068965A 2008-07-16 2008-07-16 Cooling Structure of Hybrid Transmission KR101428081B1 (en)

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