TWI356122B - Vehicular radiator - Google Patents

Description

(3) 6122 IX. Description of the invention: [Technical field to which the invention pertains]. . The present invention relates to a radiator for a vehicle in a water-cooled internal combustion engine and relates to a water-cooled internal combustion: a cooling water passage structure of the machine. [Prior Art] A It is known that a radiator is fixed to a water-cooled internal combustion engine via a shroud separate from the radiator. The radiator fan is disposed on the back of the radiator, and the radiator has a shroud, and the shroud is formed as a strip exhaust passage around the radiator fan, and the radiator fan is inserted between the internal combustion engine and the radiator . For example, Japanese Patent No. 36965〇8 can be referred to. In Japanese Patent No. 3696508, the radiator is disposed on the f side of the internal machine, and the internal combustion engine is located in front of the oscillating power unit installed in the motorcycle. The =AC generator is placed at the right end, which protrudes from the side of the internal combustion engine to the right crankcase of the horizontal crankshaft to the right, and the heat exchanger is integrally formed with the rotor of the AC generator. The month is held around the radiator fan' and the radiator is adjacent to the radiator fan via the side cover. Two 3 heats: one end on one side is fixed to the heat dissipation to the one end on the right side of the right side by the rivet, and the problem that the heat sink is heavy is attached by the screw inspection. Therefore, the hardness of the shroud must be increased. Therefore, due to the thickening of the shield, the protection of 96110706 6 I3D01Z2 is added, and one end of the end of the end has a rim for attaching to the radiator, and when the wheel is attached to the crankcase, the following ask? 4 ′ is the design of the wheeled garden. From the (four) complex, and reduce the profile of the drag / owe has gone to the cooling water channel structure, where 'a strange temperature =: strip: path' in this water path, the cooling water discharged in the water system k ¥ to After 4 pieces of water jacket, 'cooling water flows from the water jacket into the heat sink' and returns to the water chestnut via this thermostat. It is known that there is a cylinder 顼 of an internal combustion engine in which the strip of water purely includes cooling water, and the water-storing jacket directly flows through the bypass passage and returns to the water pump according to the temperature of the cooling water. For example, refer to Japanese Patent Publication No. 2 < 2996 nickname. The embodiment disclosed in Japanese Patent Publication No. 2002_12996 discloses that the first conduit extends from the water jacket of the a cylinder block and is connected to the upper groove of the radiator. The fourth conduit extends from the water jacket of the steam red head via a carburetor and is coupled to the thermostat. A fifth conduit for venting the water pump, and a common sixth conduit having a plurality of conduits for venting the water jacket therein are connected to the upper tank of the heat sink. SUMMARY OF THE INVENTION According to an embodiment of the present invention, an object of the present invention is to provide a radiator for a vehicle in which the weight of the shield is reduced, the outline thereof is simplified, and design freedom is increased. According to an embodiment of the present invention, there is provided a radiator for a vehicle disposed on a crankcase side of a water-cooled internal combustion engine having a shroud, the shroud 96150706 7 1356122 being provided with a cooling air for discharging through the radiator The exhaust vent is provided between the heat sink and the crankcase. This vehicle radiator is directly attached to the crankcase. ^ -·. According to an embodiment of the present invention, such a radiator for a radiator for a vehicle is mounted on a heat sink. According to an embodiment of the invention, a radiator fan is disposed on the rear side of the radiator so that its periphery is surrounded by the shroud, and a radiator mounting boss protrudes from the crank case around the shroud. According to an embodiment of the invention, a plurality of rectifying plates are formed in the exhaust enthalpy. According to an embodiment of the invention, the shield is disposed between the heat sink and the crankcase. However, since the heat sink is directly fixed to the crankcase, the weight of the heavy heat sink is not applied to the shroud. Therefore, the sheath can be made thin and light in weight, simplifying the contour of the shield, and increasing the degree of freedom in design. According to the embodiment of the present invention, since the shield is attached to the heat sink, the heat exchanger can be attached to the crank case, so that the heat sink and the shield can be assembled in advance, and the stacking operation can be simplified. According to an embodiment of the present invention, since the heat sink mounting boss protrudes from the crank case around the shroud, and the shroud surrounds the periphery of the heat sink fan, it is separated from the crank case and the shroud is interposed between the heat sink and the heat sink. The heat sink between the crankcases can be fixed by the crankshaft and supported by the crankshaft by the heat sink mounting bumps without the need to increase the size of the crankcase. According to an embodiment of the present invention, since the rectifying plates are formed in the exhaust dam of the shroud, the shroud having a high design freedom by designing the exhaust enthalpy, the 96150706 8 1356122 has a large opening area, and is provided with rectification. The board 'supplied with the gas volume of the radiator and improved cooling performance. • As described above, 'the two conduits are protruded from the water jacket of the internal combustion engine, and the cooling water is included. Also, the three conduits of the sixth conduit, which are used to ventilate the water pump and the water jacket, are It is disposed within the circumference of the internal combustion engine, so many components are required. Therefore, the 'water passage and the venting passage constitute an intricate structure. According to an embodiment of the present invention, a cooling water passage structure is provided in which, • only a small number of components are required, and the water passage and the deflation passage have a water-cooled internal combustion engine of a simple structure. According to an embodiment of the present invention, a cooling water passage structure of a water-cooled internal combustion engine is provided, wherein a thermostat switches a water path in which the cooling water discharged from the water pump is introduced into the water jacket of the cylinder block. And after the cylinder head of the internal combustion engine, the cooling water flows from the water jacket into the radiator, and returns to the water pump via the thermostat; and, a water path is switched, in which the cooling water system directly passes through the water jacket The bypass passage flows into the thermostat and returns to the water pump according to the temperature of the cooling water. According to an embodiment of the present invention, a cooling water passage structure of a water-cooled internal combustion engine is disclosed, wherein a bypass branch pipe and a venting branch pipe are branched from a main pipe connecting the pipe connecting pipe from the cylinder head. One of the connecting parts of the main pipe is directly connected to the water jacket, and the other connecting component is connected to the radiator through a diffuser. The inflow branch pipe is connected to the i-temperature device, and the connecting pipe is connected to the i-temperature device. The gas branch pipe is connected to the water chestnut. According to an embodiment of the invention, a connection portion 96150706 9 1356122 of the main branch of the branch connection pipe is connected to the uppermost part of the water protection in a state in which the internal combustion engine is worn in the vehicle. • The branch connecting pipe according to the embodiment of the present invention is disposed at the same position on the vehicle side up to the thermostat. 〃 According to an embodiment of the present invention, the branch connecting pipe is disposed at the same position of the vehicle side I water system. According to an embodiment of the invention, the branch connecting pipe is disposed between the water pump and the thermostat in the longitudinal direction of the vehicle. According to an embodiment of the invention, the radiator flow person hose extends from the branch connection pipe toward the radiator groove of the radiator, so that the radiator inflow pipe is inclined upward, and the internal combustion engine is mounted on the rudder and connected to the radiator groove. status. According to the present invention, the cooling water passage knot of the water-cooled internal combustion engine of the embodiment is precisely branched from the cylinder head and has a simple configuration, and the cooling water of the water jacket can be branched to make the cooling water from the main pipe... The water flow path of the thief is sent to the radiator 8G, and the water path from the 4 branch pipe to the thermostat 130, and the square branch pipe and it is far away from the gentleman 5 > stone and 'by setting the venting structure . ,. The water venting passage of the 7'' water spring can also be simply rooted: the water-cooled structure of the embodiment of the present invention is connected to the 5 parts due to the condition that the cold water passage of the branch pipe is installed in the vehicle. In the internal combustion engine, the cooling water wheel is sent to the upper part of the heat sink 2, and the air in the water jacket of the internal combustion engine is removed, '°, and the IL enters the soft official, which can be effectively used to remove the internal combustion engine. The dedicated channel does not require a 96150706 and simplifies the connection of cooling water to the heat sink, reducing the number of component channels.

The branching pipe of the cooling water passage of the water-cooled internal combustion engine according to the embodiment of the present invention is disposed in the lateral direction of the vehicle and is disposed in the thermostat: the lateral expansion of the internal combustion engine can be suppressed and becomes compact. The structure 'and' can reduce the length of the cooling water passage. The cooling water passage knot of the water-cooled internal combustion engine according to the embodiment of the present invention is arranged in the lateral direction of the vehicle in the lateral direction of the vehicle, and the lateral expansion of the internal combustion engine can be suppressed, thereby becoming a compact configuration. Moreover, the length of the deflation passage can be reduced. According to the cooling water passage structure of the water-cooled internal combustion engine according to the embodiment of the present invention, since the branch connecting pipe is disposed between the water chestnuts in the direction of the vehicle, the interconnecting pipe between the branch connecting pipes can be further reduced. k, water pump, and strange temperature device, these three can be arranged centrally along the cylinder head, and the structure of the cooling water passage can be simplified.

According to the cooling water passage mechanism of the water-cooled internal combustion engine according to the embodiment of the present invention, since the radiator inflow hose extends from the branch connecting pipe toward the radiator: the heat sink n-flow hose is installed in the vehicle and connected to the radiator The condition of the groove is inclined upward, so that the air generated in the heat-dissipating man hose m inclined from the branch connecting pipe and the air in the water jacket can be efficiently moved into the radiator groove and can be moved. except. Further scope and applicability of the present invention will become apparent from the following detailed description. However, it is to be understood that the detailed description and specific examples of the preferred embodiments of the present invention are intended to be illustrative only, and the scope of the invention may be Previously, different changes and modifications can still be made. The present invention will be more clearly understood from the following detailed description of the drawings, which are not to be construed as limiting. x Referring to Figures 1 through 9, an embodiment of the present invention will be described. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a side view showing a Scooter two-wheeled locomotive motorcycle 1 equivalent to the embodiment to which the present invention is applied. In the history of this embodiment, the front portion If and the rear portion lr of the body are described in terms of the state in which the vehicle is facing forward, and the body frame is coupled via a lower floor plate 1 c and a body frame. The body is formed as a skeleton, and the skeleton is substantially constructed by the lower tube 3 and the main tube 4.

More precisely, lower; I* 3 extends downward from the head tube 2 in the front part lf of the body; this lower tube 3 is bent horizontally at the lower end, and under the bottom plate u: backward:: - right The left main pipe 4 is joined to the lower end at the rear end of the lower pipe. The main officer 4 is obliquely raised from its joint portion, bent horizontally at a predetermined height, and extended rearward. The fuel tank 5 and other components are supported by the main pipe 4, and one seat 6 is disposed above the fuel tank. At the same time, in front of the body, if inward, a handle 11 is placed on the head tube 2 96150706 12 This 'front and 12 extension front wheel 13 is journaled to the front fork = head == journaling to the head tube Lower end. The tray 15 protrudes from the lower end of the upper portion σρ of the upper portion of the main pipe 4, and the power unit 20 is swingably coupled to and supported by the bracket via the link ig. A single-cylinder four-stroke water-cooled internal combustion engine 30 is mounted to the front of the power unit 20, has a cylinder block 32' that is substantially horizontally and slanted toward the front, and a hang-up that protrudes forward from the lower end of the crankcase 31. The tail end of the frame 18 is coupled to the connecting rod 16 via a pivot 19. The power unit 20 includes a belt-type continuously changing transmission mechanism 46 which is disposed from the internal combustion engine 30 to the rear portion, and a rear wheel 21 is disposed on the rear axle 21a, and thereafter the shaft 2ia is journaled to one A reduction gear set 38 disposed at the rear thereof. A rear shock absorber 22 is disposed between the upper end of the reduction gear set 38 and the upper portion of the main pipe 4. A throttle body 25 connected to the intake pipe 23 extends from the upper portion of the cylinder head 33, the cylinder head being substantially tilted 'before the internal combustion engine 3' and coupled to the throttle body 25 The air cleaner 26 is disposed above the power unit 20. An injector 24 for injecting fuel into the intake port is mounted to the inlet pipe 23 (Fig. 4). At the same time, the 'exhaust pipe 27 extends from the lower part of the cylinder head 33 and extends downward so that the exhaust pipe is offset to the right side. The exhaust pipe is bent backwards (including the right side inside the exhaust pipe of 96150706 13 1356122). The suspension bracket 18) extends rearwardly to a heat sink 80 disposed on the right side of the component equivalent to the crankcase and is coupled to a muffler 28. The muffler 28 is suspended from the crankcase 31 by the bracket 29 and is located on the right side of the rear wheel 21. The body part 1 f of the main body is covered by the front cover 9a from the front side, the leg support plate 9b is covered from the rear side, and the front lower cover 9c is covered from the right side and the left side, and the center of the handle 11 is held by the hand. Cover the cover. The bottom plate 1C is covered by the side sills, and the rear portion lr of the body is covered by the right side and the left side of each of the body covers 10. FIG. 2 is a longitudinal cross-sectional view showing the power unit 20. In the inner 1, the machine 30, the connecting rod 43 is coupled to a piston 42 which reciprocates in the cylinder inner view 44 of the cylinder block, and a crank pin 40a which is engaged with a crank shaft 4. The handle box 31 is obtained by coupling the left crank case 3U and the right crank case 3ir to obtain a right crank case 31R to form one half of the crank case, and the crank f mesh 31L is a longitudinally elongated front crank case member, ^ The central transmission case shown in Figure 、, and a rear reduction gear box 31 c. j The left opening of the crank phase 31L is covered by a transmission case cover %, and the cover 36 is a part of the transmission case; the belt-type continuously changing transmission is placed inside the transmission case; the rear reduction gear set box is driven by a reduction gear The group box 37 is covered; moreover, the reduction gear set 38 is placed therein. 96150706 1356122 The crankcase t includes a crankcase member 31a and a right crankcase 31R, which allows the 'curve (four) 40 to be rotatably supported by the right and left main bearings 4, 41, and has a cam chain drive sprocket 55a and One oil pump drives the tooth - the wheel 55b. An AC generator 72 is disposed on the right side, partially extending over a • a horizontally extending member H, a continuously changing transmission mechanism Μ a centrifugal weight 47 and a drive pulley 48a are provided to the left extension member . By attaching a v-belt 49 between the drive pulley 48a and the input shaft 38 of the reduction gear set 38 & the driven pulley 48b provided by the heat-reducing gear 48, the belt-type continuously changing transmission mechanism 46 can transmit power. The gear ratio can be automatically changed because the V-belt 49 is wound around the driving pulley 4^ to the centrifugal weight that moves according to the engine speed and changes 'and the same _, V-belt roll The diameter around the driven pulley is also changed, thus achieving a continuously changing transmission. The four-lamp internal combustion engine 30 adopts a SOHC type valve system, and the valve block 5〇 is disposed in the cylinder head cover 34; the cam chain 5" that transmits power to the valve block 5〇 is mounted between the cam shaft 53 and the crank shaft 4〇 . The cams #M52c, 52S, 52h^^UM31R, > tM32 and the steam head 33 for the cam chain are in communication with the cam chain chambers. That is, the 'cam chain 51 is mounted between the driven chain 54 and the drive sprocket 55a', wherein the driven sprocket 54 is fitted to the right end of the horizontally directed cam shaft 53, and the drive sprocket 55a passes The cam chain chambers 52c, 52s, 52h are fitted to the crankshaft 4''. As shown in FIG. 3, the pump drive shaft 62 is rotatably mounted between the right crank case 96150706 15 1356122 31R and one of the following frame blocks 7; an oil pump 61 is provided; and, it is assembled to the pump drive unit 62. A driven gear 63 is meshed with an oil pump drive gear 55b integrally formed with the cam. chain drive sprocket 55a. -._ In the right crank case 31R, the oil passage 65 5 a extends downward from the oil system 61, • the oil passage 65b extends horizontally from a portion of the oil passage 65a to the left crank case 31L to the left side, and reaches the oil Filter 66. The oil groove 65c is placed above the oil filter 66. Therefore, when the oil pump 61 is driven by the engagement of the drive gear 55b and the driven gear 63 by the rotation of the crank shaft 40, the oil is pumped from the oil groove 65c via the oil filter 66, and is supplied to the desired one. The location you want. In the cylinder head 33, the spark plug 45 is inserted into the cam chain chamber 52 from the opposite side (left side) and enters the combustion chamber 33a. As shown in Fig. 4, the intake port 33i extends from the combustion chamber 33a' of the cylinder head 33 and is largely tilted forward so that the intake port is bent upward, and = is connected to the milk officer 23. The exhaust port 33e extends from the combustion chamber 33a, causes the discharge to be bent downward, and is coupled to the exhaust pipe 27. , =4 shows that the valve block 5 () in the cylinder head cover 34, because the cylinder is large, the ground is tilted forward to become a substantially horizontal state, so it is used to open and close the intake air _ 33i to the combustion chamber "It is disposed on the upper side of the camshaft 53, and the inlet valve 561 ' 埠 33e to the dam 33atnD6A of the day J is used to open and close the lower exhaust shaft 53: the open exhaust chamber 56e is An inner wall 33c 5 6 , 5 6 disposed on the left wall of the projection 33 is pivotally coupled to the cam shaft 53 via the bearing 96150706 16 by forming the cylinder master and cam chain chamber 52h: end: and 'driven sprocket The 54 series is assembled to a protrusion from the right bearing 56. • As shown in Fig. 4/f, it is respectively disposed on the camshaft 53 front rocker shaft 57 and the exhaust rocker 2. On the left wall of 33 Between the inner wall 33c (Fig. &, the broken text mounting rocker shaft 57 and the exhaust rocker shaft 59 are located above and below, the κ wheel 58r is abutted against the cam shaft 53 and the roller 58r is η ϋ 'wheel 53ι上' wheel 5 以 is journaled to a = ' and this intake rocker arm 58 can be (4) ground =: fast against the air intake One of the adjustment screws on one end... Similarly, the 'roller 6Gr' is close to the exhaust cam of the camshaft 53:: Roll = 〇r is journaled to the top of an exhaust rocker arm, and this row The air rocker arm 60 is a swinging rocker shaft 59 that is swingably mounted on the side; and the screw 60s screwed to the other end abuts against one end of the shank of the exhaust valve. And the exhaust cam 53e opens and closes the intake valve 56i and the exhaust valve 56e by rotating 'shake the intake rocker arm 58 and the exhaust rocker arm 6'. The preview is as shown in Figs. 2 and 3' An opening through which the crank shaft 4〇 passes is disposed in the inner wall right wall of the cam chain chamber constituting the right crank case 31R; the main bearing 轴 journaled to the crank pump 4G is assembled to the opening of the inner wall 31RC Within σ; the large opening of the right wall 31Rj_ is closed from the right side by a frame 7〇 assembled with bolts 71; and, the crank shaft 96150706 17 1356122 40 passes through a cylindrical member 7〇a of the frame 70. A generator 72, a bowl-shaped outer rotor 74 is fixed to the right end of the crankshaft 40, and the crankshaft is The cylindrical member 7Qa of the frame 7G is passed by a bump; and the inner stator 76 wound by the sub-coil 77 is fixed to the cylindrical member 70a of the frame 7 () of the inner side of the magnet 75. The magnet is disposed on the inner side surface of the outer rotor μ in the circumferential direction. A centrally-expanded disc-shaped radiator wind Wei 78a is attached to the outer side: the right side of the sub-four' and the plurality of radiator fans 78 are Formed on the radiator fan plate 78a, the radiator fan protrudes to the right. The periphery of the rotor 74 outside the AC generator 72 is substantially surrounded by a circumferential wall 31Rs, and the circumferential wall 31Rs is from the right crank case 3ir The right wall 31Rr extends to the right; the periphery of the radiator fan 78 is surrounded by the shroud 90 described below; and the 'heat sink 8' is closely disposed on the right side of the 78. Fig. 4 is a side view showing the internal combustion engine with the radiator 8 移除 and the shroud 9 移除 removed. The circumferential wall 31RS is slightly longer in the longitudinal direction of the right crank case 31R to cover the periphery of the rotor 74 outside the AC generator 72. The radiator mounting projections 31Rb are individually formed in the four extension members, and the extension members extend from the upper side of the circumferential wall 31Rs and the front and rear positions of the lower side thereof to the peripheral sides, so that m Mount the bumps from the end of the circle (four) 31Rs to the right end to the right ~ then 96150706 18 1356122 four heat sink mounting bumps 31Rb face. Each of the right end faces is located in the same level, and the heat sink 80 has such a structure. [10] As shown in FIG. 5, the rectangular heat sink core 81 is held in the upper heat sink groove 82 and a lower heat sink groove. Between 83 (see also item 3). Regarding the upper radiator groove, a crucible 82a for supplying cooling water extends upward, the oil filler cap 85 closes the eight openings, and the cooling water inlet 82b protrudes from the front (left side) of the front side of the upper radiator groove 82.

The mounting brackets 82c, 82c are formed with respective mounting holes at the front end and the rear end of the upper heat sink groove 82 in the longitudinal direction. At this time, with respect to the lower radiator groove 83, the drain cock 83a is disposed to be close to the rear, and the cooling water outlet 83b protrudes forward at the front end. The women's brackets 83c and 83c are formed with respective mounting holes near the lower and rear ends of the front portion. The mounting brackets 82c, 82c and the front and rear mounting brackets 83c, 83c in front of and behind the upper heat sink groove 82 correspond to the four heat sink mounting projections 31Rb, protruding On the right side on the circumferential side of the circumferential wall 31 Rs of the right crank case 31R. The four ampoule racks and the four economizer mounting lugs are fixed and assembled by bolts 86, and the heat sink 80 is directly fixed to the right crank case 31R (Fig. 3). Further, as shown in FIG. 5, in the heat sink slot above the heat sink 80, the cover mounting bracket 82d is formed with a mounting hole in front of the front mounting bracket 82c, and the shield mounting bracket 82d is in one The shroud mounting bracket is also formed with a mounting hole from an upper portion of the rear of the upper radiator groove 82 and at an upwardly inclined position of the rear mounting bracket 82c to the 96150706 1356122. In the lower radiator groove 83, the shroud mounting bracket 83d is also formed with a mounting hole under the center bottom. _ ^ The shroud 90 surrounding the periphery of the radiator fan 78 is attached to the three shroud mounting brackets 82d, 82d, 83d formed in the radiator 8 from the back of the radiator 80, respectively. As for the shroud 9G, as shown in Figs. 6 to 8, 'a rectangular plate 91 having a large circular opening 91a at the center (the lower edge thereof is partially downwardly swollen)* is formed, and one is before the circular opening 91a. A circumferential wall 92' that is laterally upward and further curved rearward protrudes from the back (left side) of the rectangular plate 91. The circumferential wall 92 corresponds to the above-mentioned circumferential wall 3iRs of the right crank case 31R, and the common trailing end surfaces are assembled together. Moreover, the circumferential wall 92 surrounds: the circumference of the radiator fan 78. A cutting portion at the lower portion of the circumferential wall 92 is used as the exhaust port 93' and is located in the exhaust port 93. A plurality of rectifying plates protrude from the rectangular plate 91, and a plurality of rectifying plates are disposed in a direction in which the radiating air is smoothly discharged. - the front and rear side panels 95, 95 are projected on the top side (right side), are formed on the front side and the rear side edge of the rectangular plate, and the heat sink 8() is assembled to face in the longitudinal direction. Between the side panels 95, 95. The cover attaching piece 9 projects forward with the upper end surface of the front side panel 95 and the lower end surface of the lower side, and similarly, the cover attaching piece 96 projects rearward along the right end surface on the upper side and the lower side of the rear side panel 95. Each of the screw holes 96a is formed on the four cover pieces 96. 96150706 20 1356122 A mounting bracket 97 for mounting a shield to the heat sink 80 is formed at the front end of the upper portion of the rectangular plate 91 such that the mounting bracket extends upward. • A mounting bracket 98 is extended from the upper side of the circumferential wall 92 toward the rear and obliquely upwards, and is flexed on the top side (right side), and a mounting bracket 99.. from the rectangular plate The center of the lower part of 91 extends downward. The three mounting brackets 97, 98, 99 are provided with respective mounting holes 97a, 98a, 99a. A shield 90 having the above configuration is attached to the back surface of the heat sink 80. The top side of the rectangular plate 91 of the shield 90 is overlapped by the back surface of the heat sink core 81 such that the front and rear side edges of the heat sink core 81 of the heat sink 80 are held before the rectangular plate 91 of the shield 90. Between 95 and 95, the two mounting brackets 97, 98, 99 of the cover 90 are assembled to the respective three cover mounting brackets 82d, 82d, 83 of the heat sink 8 (1, and each rivet 100 passes through the common mounting hole and fixes the heat sink and the shroud. φ As described above, the heat sink 80 overlapped by the shroud 90 is directly fixed to the right crank case 31R by the bolt 86 as shown in FIG. On the right side, the shroud is mounted on the back surface of the heat sink 80. The four radiator ampoules 31Rb protrude from the periphery of the circumferential wall 31Rs of the right crank case 31R to the right side, and extend to the mounting brackets 97, 98, Extending from the circumference of the circumferential wall 92 of the shield 90. Therefore, the heat sink 8G away from the right crank case 31R can be directly fixed to the four heat sink mounting projections (10) by the protection I 90 The crankshaft 31 is supported by it without the need to increase the size of the crankcase 31. 96150706 21 1356122 Right song The box 31R substantially surrounds the circumference of the AC generator 72, and the circumferential wall .92' of the shroud 90 coupled to the circumferential wall 31Rs of the right crank case 31R substantially surrounds the periphery of the radiator fan 78 (refer to FIG. 3). Fig. 5 is a right side view 'showing that the heat sink 80 is attached to the right side of the internal combustion engine 30. and a radiator cover 1〇5 covers the surface (right side) of the heat sink 80. The 105 includes: a core cover i 〇 5c covering the heat sink core 81 of the heat sink 80 from the right side, and a louver 16 6 formed on the inner side thereof, and an upper cover cover 1 〇 5 u covering the core cover 1 〇 5c, the right side, the top surface, and the front and rear surfaces of the upper heat sink slot 82; and a lower slot cover 1051 covering the right side, the bottom surface of the lower heat sink slot 83 on the lower side of the core cover i〇5c, and Front and rear two surfaces. The mounting bracket 107 protrudes from the front side and the lower side of the front side edge of the core cover 1 〇 5c, and the core cover 〇5c is attached to each of the four cover mounting pieces of the shield 90 with each mounting hole 96. φ Therefore 'the radiator cap is assembled to the surface of the radiator 80 (on the right side) The mounting bracket 107 is fitted to the four cover mounting pieces 96 of the shield 90, and the screws 1 〇 8 are inserted into the respective mounting holes, and the screws are screwed into the screw holes 96a of the cover mounting piece 96 (Fig. 2). Further, the radiator cover 1〇5 is assembled to the shroud 90 (FIG. 1). As described above, the radiator 80 and the radiator cover 105 are assembled to the right crank case 31R of the internal combustion engine 30 via the shroud 9〇. Since the heat sink 80 is attached to the back surface of the heat sink 80 by the bolts 86 via the shield 90, the heat sink 80 is directly fixed to the right 96150706 22 1356122.

The right side of the crankcase 31R' is such that the weight of the heavy heat sink 80 is not applied to the shield 90; therefore, the shield 90 can be made thin and V. The weight can be reduced, and the contour of the shield 90 can be simplified. And increase the design, * degrees of freedom. 9 • Since the shield 90 is assembled to the heat sink 80, the heat sink 80 is assembled in advance with the heat sink 80 and the 3 cover 90 (sub-assembly, attached to the right crankcase) 31R, therefore, assembly can be simplified. δ When the Ludang crankshaft 40 is rotated by the driving of the internal combustion engine 30, the rotor 74 outside the ac power generator 72 rotates together with the radiator fan 2, and, due to the radiator fan The rotation of 78 takes air from the right side of the internal combustion engine through the louver 1〇6 of the radiator cover 105, and causes the air to pass through the radiator core 81 of the radiator 80, so that the cooling water in the radiator 8〇 can be cooled. The air for cooling the radiator 80 is discharged in the centrifugal direction by the rotation of the radiator fan 78, flows in the direction of rotation along the peripheral wall 92 of the spring cover 90 outside the radiator fan 78, and is subjected to a plurality of The correction of the rectifying plate 4 and the exhaust enthalpy 93 formed in the notch portion of the lower portion of the circumferential wall 92 are efficiently discharged to the outside (Fig. 3). The phase 2 is assembled to a conventional type of crankcase. Fixed shield In different ways, the radiator (10) is directly mounted to the tank 31R'. Moreover, the shroud, = this exhaust manifold 93 has a large opening area, which is further increased by the rectifying plate 94 to the large exhaust dam 93' The gas volume of the radiator is 'and the cooling performance is improved. 96150706 23 1356122 Next, a system for circulating cooling water will be explained. As shown in Fig. 2 and Fig. 5, the water pump 120 is attached to the right side of the cylinder head 33. The water pump body 121 includes an elongated cylindrical member i2ia which is elongated in the axial direction and is rotatably journaled to the pump drive shaft 123 via a bearing bore 25. Further, a short cylindrical member 126b extends in the radial direction and Extending axially, this is achieved by radially extending an open end of the elongated cylindrical member and partially storing an impeller 124 that is coupled to the pump drive shaft 。 23. The pump drive shaft 123 is coupled to the axle 53 coaxial, long cylindrical member 1213 is assembled and fixed to the right side wall of the cylinder head 33, the left end of the pump drive shaft 123 is fitted into a fitting hole drilled on the right end surface of the cam shaft μ, and the pump The moving shaft system rotates coaxially and integrally with the cam shaft. The water pump cover 122 for covering the right opening of the short cylindrical member 121b of the water pump body 121 and storing the impeller 124 together with the short cylindrical member 121b is a short cylindrical member The opening end faces of 121b overlap and are fixed to the short cylindrical member by a bolt 126. 曰 About the water chestnut cover 122' - a water inlet circle (four) member 丨 22b is from the intake member 122a along the right side of the cylinder head 33 Extending and expanding in the direction of the crankshaft on the right side of the water drive shaft 123. The discharge member extends/toward to the rear and extends in a tangential direction from the portion of the impeller 124, and The rr 199 ^ ^ discharge connecting pipe 127 it-step protrudes from the discharge member 122c (Fig. 5). Further, a venting portion 122d is formed on the side of the impeller 124 on the side of the 96150706 24 and a venting connecting pipe 128 extends obliquely to the rear and extends upward from the venting portion 122d. The joint flange 122bb is formed at the upstream end (rear end) of the water inlet cylindrical member 22b and the thermostat 13 is assembled to the joint flange via a joint flange. I22bb. A bypass connecting pipe 131 extends upward from the upper portion of the radiator 13 and an inflow connecting pipe 132 extends downward from the lower portion of the thermostat. The branch connecting pipe 135 which is directly connected to the uppermost surface portion 2 of the inner water jacket (4) as shown in Fig. 5 and Fig. 9 protrudes from the upper right side of the cylinder head 33 to the right side. The main pipe 135a of the branch connecting pipe 135 is bent rearward after it protrudes to the right. Since the branch connecting pipe 135 protrudes from the cylinder head 33, it can be easily configured and positioned. A bypass branch pipe 136 starts to branch from a lateral horizontal portion on the upstream side of the main pipe of the branch pipe 135, and protrudes rearward. Further, a small-diameter deflation branch f 137 protrudes downward from a longitudinal horizontal portion on the downstream side of the main pipe 135 & and is bent forward. More specifically, the 'bypass branch* 136 and the deflated branch pipe 137 are branched from the main pipe 135a of the branch pipe 135, and 135 has a total of four joints. Further, as shown in FIG. 5, the main f-center of the branch connecting pipe 135 is connected to the cooling water dead port 82b, and the heat sink groove 82 from the heat sink 8A flows into the hose 140 via a heat dissipation and faces backward ( On the left side, the protrusion 136 is connected via a bypass hose 1 to the temperature Itugt bypass connection 96150706 25 1356122 tube 131; and the deflation branch pipe 137 is connected to the water pump 120 via the deflation connection hose 142. The venting connection pipe 128. • The cooling water outlet 83b protrudes forward from the radiator groove 83 below the radiator 80. The inflow connection pipe 132 of the thermostat 130 is connected via a radiator. The hose 143 and the discharge connection pipe 127 of the water pump 120 are connected, wherein the discharge connection pipe 127 of the water pump 120 is connected to a piece via the connection hose 144. The inflow connection pipe 138 communicates with the water jacket 32w of the steam red block 32. As shown in FIG. 5, the cooling water cooled in the radiator 80 is guided from the lower radiator groove 83 to the cooler 130 by the diffuser outflow hose 143, and is guided to the cooling of the thermostat 130. The water is sucked into the water pump 12 from the thermostat 13 through the water inflow cylindrical member 122b, and is supplied to the water jacket 32w of the cylinder block 32 from the drain member 122c of the water pump 120 via the joint hose 144. The water jacket 32w of the cylinder block 32 is flushed with the water jacket 33w of the cylinder head 33, and a water path is formed there, wherein each water jacket 32w, 33w flows into and cools the cylinder head 32 and the cylinder head 33. The cooling water is returned from the branch connecting pipe 135 protruding from the upper right side of the cylinder head 33 to the hose 140 via the radiator, and returns to the upper groove 82 of the radiator 8 . Further, a water path is formed in which the cooling water flowing into the water block 32w, 33w of the cylinder block 32 and the cylinder head 33 reaches the thermostat 13A, and - does not pass from the bypass branch pipe 36 through the radiator 80 The bypass branch pipe is branched from the branch connecting pipe 135 via the bypass hose 141. During the warm-up preparation of the internal combustion engine 30 that has not been warmed up, the thermostat 13 〇 96150706 26 ^ 00122 closes the water path for cooling water from the radiator 8 to the cylinder head 33, and warms up; moving: waterway & 'opens the bypass ΜAccelerate; when the warming machine does not pass the radiator of the radiator 8 (four) to close the water path around the cylinder head 33, open the radiator " (four) starting flow of the forest path, so that the towel is cooled The cooling water from the red block 3 2 to the province 々 55 55 Q < 3 ^ with the cylinder head I head I and cool the air in the cylinder block 32 water pump 120, from the ventilation part (10) in the upper part of the fruit cover 122 The gas is connected to the soft f 142 and enters the upper branch connector 135, passes through the radiator which is slightly inclined upward in the back direction, flows into the hose 140, reaches the radiator groove 82 above the radiator 8〇, and further reaches an oil filling The cover 85 is disposed along the upper portion of the inclined upper wall of the upper radiator groove 82 and can be carried away from the water path. As described above, the cooling water flowing out of the water jacket can be branched to a water path for transporting the cold water from the main 135a through the radiator into the hose 14 〇 to the radiator 80, and the other to make the cooling water The water path of the thermostat 13 is transported from the bypass structure 136 of the simple structure by the branch connecting pipe 135 attached to the upper right portion of the steam red head 33. Further, by providing the deflation branch pipe 137 and connecting it to the water pump 12, the venting passage of the water pump 12 can also be constructed with a relatively simple structure. Moreover, since the branch connecting pipe 35 is directly connected to the uppermost portion of the water block 32w, 33w of the cylinder block 32 and the cylinder head 33, the radiator inflow hose 140 is used to transport the cooling water to the radiator 8〇. The air in the water jacket of the internal combustion engine can be effectively released. Therefore, a passage for discharging the air in the internal 96150706 27 1356122 gas turbine does not need to be individually connected to the radiator groove 82 above the radiator 80, which can reduce the number of components and can simplify the cooling passage structure. • The heat sink in the cooling water circulation system is attached to the right side of the right crank case 31R with the cover 90 attached to the back surface of the heat sink 8 as described above. Therefore, the weight of the heat sink 8 is not applied to the shield 90. Therefore, the shield 9 can be made thin and light in weight, which simplifies the contour of the shield 9 and can increase the degree of design freedom. 9 Since the shield 90 is attached to the heat sink 8〇, the heat sink 8〇 can be assembled to the right crank case 31R with the heat sink 80 and the shield 90 assembled in advance, thereby simplifying assembly. operation. Since the heat sink mounting projection 31Rb protrudes from the right crank case 311^ around the periphery of the shroud 90, and the shroud surrounds the periphery of the radiator fan 78, it is away from the right crank case 31R via the shroud 90. The heat sink 80 can be fixed to and supported by the right crank case 31R by the heat sink mounting bump 31Rb without increasing the size of the crank case 31. Since the heat exchanger 80 is directly attached to the right crank case 31R, and the s leaves of the shield 90 have a large degree of freedom, the gas volume of the heat sink can be increased, and by designing the exhaust port 93 With a large open area and a rectifying plate 94 provided in the large exhaust port 93, the cooling performance can be improved. As described above, regardless of the simple structure of the branch connecting pipe 135, the air in the internal combustion engine and the air in the water pump 12〇 can be removed, and the cooling performance can be improved. 96150706 28 1356122 ♦ As shown in FIG. 9, since the branch connecting pipe 135 protruding from the right side of the cylinder head 33 is disposed on the side of the vehicle in the same direction as the water pump 120 similarly fitted to the right side of the cylinder head 33 In addition, the thermostat. 130 is connected to the water pump 12A and is disposed along the right side of the cylinder block 32. Therefore, the lateral expansion of the internal combustion engine 3 can be suppressed, and the structure is compact. Therefore, the length of the cooling water passage and the length of the deflation passage can be reduced. In addition, since the branch connecting pipe 135 is disposed between the climbing water 20 and the stranger 130 in the longitudinal direction of the vehicle, the branch connecting pipe 135, the water pump 12〇, and the thermostat 13〇 can be further reduced. The pipes are interconnected, and both are disposed centrally along the cylinder head 33, and the structure of the water channel of the simple north can be cooled. Since the deflation branch pipe 137 of the branch connecting pipe 135 is branched from the main raft 135a on a longitudinal horizontal P piece, the longitudinal horizontal member is branched in the horizontal horizontal member on the upstream side of the main f 135a. The downstream branch of the bypass branch is bent upward, so that the air generated by the water chestnut can be continuously moved toward the radiator without moving upward, and then enters the bypass branch pipe 136 and circulates in the water path. Since the branch connecting pipe 135 is fitted to the upper right side of the cylinder head 33, the branch connecting pipe is directly connected to the uppermost portion of the inner water jacket 33w, so the branch connecting pipe 135 can be easily fixed to the cylinder head & The present invention has been described above, however, it is apparent that the present invention can be modified in many ways. Changes in the & class should not be considered to deviate from the spirit of the present invention 96150706 29 1356122 and the scope of the contrary, on the contrary, the changes to the skill of the person who knows the skill of the art should be included in the attached BRIEF DESCRIPTION OF THE DRAWINGS [Brief Description] FIG. 1 is a side view showing a Scooton II motorcycle equivalent to an embodiment of the present invention. Figure 2 is a cross-sectional view showing a power unit taken along a line n_u in the figure. Figure 3 is a cross-sectional view showing the front half of the power unit, taken by line 111 _ 111 in Fig. 1. Fig. 4 is a right side view partially showing a cross section of the front half of the power unit and partially omitted. Figure 5 shows a right side view of the front half of the power unit with the radiator cap removed. Figure 6A shows a right side view of the top side of the shield. Figure 7 is a left side view showing the back of the shield.

LslY Q g Θ 剖面 A cross-sectional view taken along line V111 - V111 in Fig. 7. Figure 9 shows a top view of the cylindrical head, the branch connecting tube, and other components in its periphery. [Description of main component symbols] Motorcycle C Baseplate Front Rear Head Tube Lower Tube 96150706 30 1356122

4 Supervisor 5 Fuel tank 6 Seat 9a Front cover 9b Leg baffle 9c Front lower cover 9d Handle cover 9e Side cover 10 Body cover 11 Handle 12 Front fork 13 Front wheel 15 Bracket 16 Connecting rod 18 Hanging bracket 19 Pivot 20 Power unit 21 Rear wheel 21a Rear axle 22 Rear shock absorber 23 Intake pipe 24 Injector 25 Throttle body 26 Air cleaner 96150706 1356122 27 Exhaust pipe 28 Silencer • 29 Bracket-·· 30 Internal combustion engine... 31 crankcase 31a (front) crankcase part 31b (central) gearbox 31c (rear) reduction gearbox box 31L (left) crankcase 31R (right) crankcase 31Rb radiator mounting lug 31Rc inner wall 31Rr right wall 31Rs circumference Wall 32 Cylinder block 32w Water jacket 33 Cylinder head 33a Combustion chamber 33c Inner wall 33e Exhaust 埠i 33i Intake 埠 33w Water jacket 34 Cylinder head cover 36 Transmission case cover 96150706 32 1356122

37 Reduction gearbox 38 Reduction gear set 38a Input shaft 40 Crank Han 40a Crank pin 41 Main bearing 42 Piston 43 Connecting rod 44 Cylinder liner 45 Mars plug 46 Transmission 47 Centrifugal weight 48a Drive pulley 48b Drive pulley 49 V-shaped Belt 50 valve block 51 cam chain 52 cam chain chamber 52c cam chain chamber 52h cam chain chamber 52s cam chain chamber 53 cam shaft 53e exhaust cam 53i intake cam 96150706 33 1356122 54 driven sprocket 55a (cam chain) drive sprocket -55b (oil pump) drive gear • ·· 56 bearing.56e exhaust valve 56i intake valve 57 (for intake) rocker shaft 58 (intake) rocker arm • 58r roller 58s adjustment screw 59 (for exhaust) Rocker shaft 60 (exhaust) rocker arm 60r roller 60s adjustment screw 61 oil pump • 62 spring drive shaft 63 driven gear 65a oil passage 65b oil passage 65c oil groove 66 oil filter 70 partition 70a cylindrical member 71 bolt 96150706 34 AC generator ACG bump outer rotor magnet inner stator stator coil (heat sink) fan (heat sink) fan plate radiator Heater core (top) radiator slot; upper slot (cooling water supply) 埠 (cooling water) inlet mounting bracket guard mounting bracket (bottom) radiator slot drain cock (cooling water) outlet mounting bracket shield mounting Bracket oil cap bolt guard rectangular plate 35 1356122 91a opening 92 circumferential wall • 93 exhaust 埠 ·. 94 rectifying plate .95 side piece 96 cover mounting piece 96a screw hole 97 mounting bracket • 97a mounting hole 98 mounting bracket 98a Mounting hole 99 Mounting bracket 99a Mounting hole 100 Rivet 105 Radiator cover ^ 105c Core cover 1051 Lower cover 105u Upper cover 106 Blinds 107 Mounting bracket 108 Screw 120 Water pump 121 Water pump body 121a (long) Cylindrical part 96150706 36 1356122 121b (short) cylindrical part 122 water record cover 122a intake 埠 part: 122b water inlet cylindrical part .122bb joint flange 122c discharge 埠 part 122d ventilation part 123 (water) pump drive shaft • 124 impeller 125 bearing 126 Bolt 127 discharge connection pipe 128 bleed connection pipe 130 thermostat 130a connection flange • 131 bypass connection pipe 132 inflow connection 135 branch pipe 135a connected to the bypass branch pipe competent 136 137 deflated branch pipe 138 into the connection pipe 140 flows into the radiator bypass hose hose 141 96,150,706 371,356,122

142 bleed connection hose 143 radiator outlet hose 144 connection hose 96150706 38

Claims (1)

1356122 ____ Month day fine JUL i 9 20i1 X. Patent application scope: Replacement 1. A two-engine radiator unit is equipped with a radiator (80) on one side of the handle of the water-cooled internal combustion engine. ; in the above-mentioned radiator (8 〇) ... crank box (3U side is provided with a radiator fan (78); between the above radiator (8 〇) • and the above crankcase (31), the shield (90 Provided to surround the diffuser fan (78), the shroud (90) is provided with an exhaust vent that is attracted by the radiator fan (78) and passes through the cooling air of the radiator (80) 93) wherein a plurality of first mounting brackets (82c, 83c) are formed in the heat sink (8〇); a plurality of heat sink mounting bumps (31Rb) are corresponding to the first position at position I Mounting brackets (82c, 83c) protruding from the circumferential wall (31Rs) of the crankcase (31) toward the heat sink (80), and protruding around the outer periphery of the shield (90); The first mounting bracket (82c, 83c) is attached to the heat sink mounting bump (31Rb) of the crankcase (31), and the heat sink (8〇) is It is directly fixed to the crank case (31); • The second mounting bracket (82d, 83d) is provided in the heat sink (80) so as to extend outward, and the cover (90) is attached to The second mounting bracket (82d, 83d). 2. The heat sink device for a motor vehicle according to the first aspect of the patent application, wherein 'the shroud (90) extends upward and downward The third mounting bracket (97, 98, 99) is provided, and the third mounting bracket (97, 98, 99) is fixed to the second mounting bracket (82 (1, 83d). The radiant heat exchanger device for a motor vehicle according to the first or second aspect of the patent, wherein the shield (90) is repaired by the second mounting bracket (82d, 8°3^96150706 39 1356122 1()^July 11 ( Further, the replacement page is being replaced from the back side of the above-mentioned heat sink (80). ' 4. The heat sink assembly for a motor vehicle according to claim 1 or 2, wherein the radiator (80) The upper mounting slot (82) and the lower heat sink: the slot (83), the upper radiator slot (82) and the lower radiator slot (83) are formed with the first mounting bracket (82c, 83) c) 5. As claimed in claim 3, the heat sink device for a turbine of a motor vehicle, wherein the heat sink (80) has an upper radiator groove (82) and a lower radiator groove (83) for heat dissipation The first (1) mounting brackets (82c, 83c) are formed in the tank (82) and the lower radiator (83). 96150706 40