TW475966B - Engine cooling device - Google Patents

Abstract

To increase a cooling performance by preventing a thermostat from hunching regardless of an abrupt change in cooling water temperature in an engine cooling device featured with the thermostat formed by supporting a waxed case with wax, movably according to the expansion and contraction of the wax, on a housing installed on an engine body having a water jacket provided therein. The housing 48 of a thermostat 44 is formed into a tubular shape, and disposed so that the outer peripheral surface thereof comes in contact directly with an engine body 5. A waxed case 53 is fitted to the housing 48 in the state of coming in contact directly with the inner peripheral surface of the housing 48.

Description

, Zanhe description (1)

The technical field to which it belongs J "It is composed of a 嶋 device, which can be based on the swelling of a wax: 卞 ::, and is a thermostat. The indentation 仃 is a built-in wax. [Knowledgeable Technology] No. Japanese Patent Laid-open No. Hei [Problems to be Solved by the Invention] In the above-mentioned conventional method, the temperature of the thermostat is reduced to m by the cooling water jacket connected to the thermostat. It is assumed that the flange portion of the branch is held between the cylinder head and the suction branch pipe ... The wax in the wax box that can move freely is located at the position of the flange portion. Therefore, the temperature change of the cylinder head has little effect on the wax. The effect of the expansion and contraction of the cooling water depends on the temperature of the cooling water in contact with the butterfly box. The wax expands and contracts, especially based on cooling during warm-up ... The present invention is made by the creator in view of the above problems, and the object of the present invention is to cool the engine which can prevent the operation of the thermostat even if the temperature of the cooling water changes sharply, and can improve the cooling performance of the engine. Device. [Solve the question Means of the problem] Thermostat Internal support Waxbox Institute -82016 is equipped with ^ vacant The above thermostat case is more responsive so that the water temperature of the engine body provides vibration.

475966

475966 V. Description of the invention (3) The main body and the combination of the engine body ^ ^ ~ The axis of the thermostat case, and the joint surface of the two components is along the body and the above-mentioned members, the root ^ : The beneficial shell is held by the engine, but the water path is shortened, which can further reduce the structure, so that the thermostat is assembled on the cylinder head in a cold state. ^ ^ Road resistance can make the thermostat small [Embodiments of the invention] Hereinafter, one embodiment of the present invention will be described with reference to the drawings. 1 to 5 illustrate one embodiment of the present invention. Figures 1 to 5 are an implementation of the present invention-a vertical and vertical cross-sectional view, Figure 2 is a diagram. Corresponding to :: Enlargement of the main part in the machine state. Figure 4 is a cross-sectional view of the strange state taken along line 4-4 in FIG. 2, and a surface view of the thermostat made on line 5-5 of ^. Figure 5 shows the engine body 5 of the water-cooled engine from 5: = 1, for example, it is equipped with one of the following: it includes: a cylinder member 6, the steam red structure two:; , The piston n ′ and the inner cavity M of the steam cylinder fitted with it; : 7, the A-cylinder head 7 is combined with the cylinder member 6, and the above-mentioned / member: L section Λ between people to form a combustion chamber-13; and a crank case 8, the crank case 8 and the earth cylinder may; r spine From \ σ, the sub-bearing supports the crank shaft 15 connected to the above-mentioned piston 11 via the connecting rod 14; the crank case 8 uses the plane of the line containing the piston η as the joint surface to make the right half of the crank case 9 Combined with the left half crank phase body 10 to form one. One end of the crank shaft 15 protrudes into the generator chamber 丨 7 formed between the right half crank case 9 and the right case cover 丨 6 of the right crank case 9. The generator

W326 \ 2d. \ 90-05 \ 90104637.ptd

Page 6 475966 1. Description of the invention (4) In the room 17, the generator 20 is a rotor 18 constructed by a stator 21 fixed to the right case cover 9 and a rotor 18 5 fixed in the generator room 17. , Yu Qu, 22. On the other hand, between the top cover 23 of the coupled member of the driving sprocket, the cam head 24 for the valve of the cylinder head 7 is supported around the cylinder head 7 The axis line of the reading and exhaust can be freely rotated; the jointless chain = curve: the wheel 15 is parallel to the follower sprocket 25 fixed by the above camshaft 24, and the upper = coiled between 21 and 22 -On the sprocket 21 of the person. In addition, it has the above plate: ff sprocket r # ΙΑ2? ^ ^ 28 ^ ® ^ ϊ ^^ 5; of the generator room Π = 9; no joint-shaped key bar 30, right system + Qubing A follower key wheel 29 fixed by the rotation shaft 27 of the oil pump 28 is hung on a sprocket 22 of one of the two driving sprocket wheels 21 and 22. The other end of the crankshaft 15 protrudes into the gearbox compartment 32 formed between the left half-crank case 10 and the left case cover 31 combined with the half-crank case ο. The money is within 32, the Pising-type drive wheel 3 The 3 series is installed on the other end of the crankshaft. The part of the belt-type stepless speed changer 38, which transfers the rotational power of the crankshaft 15 to the rear of the two-wheeled vehicle (not shown), is constituted by the belt-type drive wheel 33, and the belt-type drive wheel 3 3 is provided with a fixed-side pulley half 3 4 fixed to the crank shaft 15 and a movable-side pulley half 35 that can approach and leave the fixed-side pulley half-34; the movable-side pulley half 35 is connected along the The role of the centrifugal weight 36 that moves radially outward is to obtain the potential energy to make it approach the fixed side pulley half 34 according to the increase in the number of rotations of the crank shaft 5. W326 \ 2d- \ 90-〇5 \ 9〇〇〇4637.ptd Page 7 4 /) y〇o

The thermostat will be used to make the combined sacrifice film 56 of the slidable shell 4 8 provided with the thermostat shell 48, and the above-mentioned denseness and weight will be limited to 4; the cylinder head 7 and the top cover 23 and the outer peripheral surface of the 3 door and the cylinder head 7 Direct contact, V. Description of the invention (6) 4 8 The axis of the thermostat, in other words, the thermostat shell 4 8 is mounted on the cylinder head 7. At one end of the thermostat case 48, a sealing member 50 is installed so as to cover the center portion of the inner surface of the closed end of the covering member 50, and the end reinforcing portion 51 is exposed. In addition, the stop wheel 5 2 is installed in the thermostat and is interspersed in the thermostat shell 4 8 so that the outer side is connected to the thermostat 54 ′ and the main box 54 5 4 and the wax box cover 5 5 The box is held by the box body 5 4 and is fitted in a round box-shaped guide tube 57. One end of the bottomed cylindrical case 48 made of a material is opened at the other end of the front case 48 which is one end of the thermostat case 48 in the sealing structure, and the inner surface of the other end side is open. 4 free box 5 3 freely. The main box body cover 5 5 which is in direct contact with the inner surface of the box 5 3 is formed at the peripheral portion of the main box body. In addition, a wax 58 built into the wax box 53 is slidable inside the main sealing member 50, and is filled between the diaphragm 56 and the wax box cover 55, and expands and contracts according to the temperature change of the wax 58. The diaphragm 56 is deformed. On the other hand, in the guide tube 57, a slidable rod-shaped piston 59, a disc-shaped plate 60 and a rubber piston 61 are sequentially inserted from the opposite side of the diaphragm “, and the rubber piston 61 in the wax box 53. A medium 62 for transmitting the deformation of the diaphragm 56 to the rubber piston 6 is filled between the diaphragm 56 and the wax box 53. A wax box 53 is provided between the wax box 53 and the stopper wheel 52. The impeachment 63 which is forced to the potential energy of the sealing member 50 side, when the temperature of the cooling water is lowered so that the wax 58 is in a contracted state, the wax box 53 is in a sealed state as shown in FIG. 2

4 / ^ 66 Description of the invention (8) __ Bypass hole 71 which allows the passage 66 of the cylinder head 7 to be conducted between the outlet holes 65, which is provided on the side wall of the thermostat case 48: water chamber 70 bypass hole 71 When the wax box 53 is moved to the communication inlet hole 64, and when it is set, the wax box 53 is closed. The connection pipe 72 for conducting the water chamber 70 between the outlet holes 65 is installed on the top cover 23, and is connected to the cooling water pump 41 through the conduit 73. The μ connection officer 72 is the second, and the function of this embodiment will be described. The outer peripheral surface of the thermostat case 48 of 44 is directly connected to the cylinder head 7 and the wax box 53 with the wax 58 is stored in the thermostat. The inner periphery of the thermostat case 48 is slidably fit into the thermostat case 48 Since the butterfly box 53 and the thermostat shell 48 which are in direct contact with each other are embedded in contact with each other, the heat is transferred to the wax μ by the heat conduction of the cylinder head 7 in direct contact with the two 48 into the cooling water even when the engine is warmed up. The temperature changes sharply. ° ° Therefore, it can also be formed to accurately correspond to the temperature of the cylinder head 7, and the vibration of the thermostat 44 of f 8 can be used to improve the cooling performance. The side wall is provided with an outlet hole 64 ′ connected to the cooling water port and an outlet hole 65 communicating with the radiator 45, and is arranged on a diameter line of the thermostatic casing 48; the above is arranged to switch between the inlet miscellaneous outlet holes 65 The communication sliding case 48 is fitted into a freely sliding state. Straight line: ^ is the aperture 64 and outlet aperture 65 so that the cooling water through the thermostat well :: "in the technology, can reduce the passage resistance of the passage. Therefore, the amount of cooling water circulation can be increased at ^ = 41, and in addition, the driving force of the cooling water pump 41, which is driven by the fruit of the crotch, can be expected.

90104637.ptd Page 11 475966 V. Description of the invention (9) In addition, the wax 5 8 can be brought close to the cylinder head 7 to prevent the vibration action of the thermostat 4 4 more effectively, and the cooling performance can be further improved. Also, since the joint surface 4 9 of the cylinder head 7 and the top cover 23 is along the axis of the strange thermostat case 48, and the thermostat case 4 8 is sandwiched between the cylinder head 7 and the top cover 23, it is shortened. The cooling water passage in the thermostat 44 can further reduce the passage resistance, and the thermostat 44 can be miniaturized and assembled on the cylinder head 7. Although the embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments, and various design changes can be made as long as they do not exceed the scope of the patent application described in the present invention. For example, in the above-mentioned embodiment, although the structure in which the thermostat 44 is mounted on the cylinder head 7 of the main body 5 has been described, the cooling of the cylinder member 6 of the main body 5 can be “widely [effect of the invention] according to the above-mentioned application patent A sharp change in the first temperature of the range can also make the engine the first month, even the temperature of the cold water, thus preventing the strange temperature from positively corresponding to the butterfly energy. The dispatch operation can improve the cooling performance according to the above-mentioned patent application The simplification of the cooling water passage in the thermostat in the second item of the scope, and the invention of the war, because the constant force prevents the vibration of the thermostat from reducing the passage resistance performance of the passage. It can be further improved. Cooling The cooling water path shortened according to item 3 of the above-mentioned patent application can shorten the path of the invention.

\\ 326 \ 2d- \ 90-05 \ 90104637.ptd Page 12 475966 V. Description of the invention (ίο) Miniaturized assembly on the cylinder head [Explanation of the component number] 5 Engine body 6 Cylinder components 7 Cylinder head 8 Crankcase 9 Right half crank case 10 Left half crank case 11 Piston 12 Cylinder cavity 13 Combustion chamber 14 Connecting rod 15 Crankshaft 16 Right case cover 17 Generator chamber 18 Rotor 19 Stator 20 Generator 2 22 22 Dynamic sprocket 23 Top cover 24 Camshaft 25 Follower sprocket 26 Chain 27 Rotary shaft

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V. Description of the invention (11) 28 Oil pump 29 Follower sprocket 30 Chain 31 Left cover 32 Gearbox 33 Belt drive wheel 34 Fixed side pulley half 35 Moving side pulley half 36 Centrifugal hammer 37 V-shaped belt 38 Belt-type stepless speed changer 39 Blade section 40 Air filter 41 Cooling water pump 42 Rotating shaft 43 Cooling water jacket 44 Thermostat 45 Radiator 4 8 Thermostat housing 48a, 48? I A pair of convex strips 49 Joint surface 50 Sealing member 51 Front-end reinforcement 52 Stopper 90104637.ptd Page 14 475966 V. Description of the invention (12) 53 Wax box 54 Main box 55 Casing box cover 56 Diaphragm 57 Guide tube 58 Bugs 59 Rod-shaped piston 60 Disc-shaped plate 61 Rubber piston 62 Media 63 Impeachment 64 Inlet L 65 Outlet hole 66 Path 67 Path 68 Connection tube 69 Conduit 69 70 Water chamber 71 Bypass hole 72 Connection tube 73 Conduit

90104637.ptd Page 15 475966 Brief Description of Drawings Figure 1 is a longitudinal section view of the engine. FIG. 2 is an enlarged view of main parts when the engine of FIG. 1 is in a cold state. FIG. 3 is a cross-sectional view corresponding to FIG. 2 when the engine is warmed up. Fig. 4 is a sectional view of the thermostat taken along line 4-4 in Fig. 2. Fig. 5 is a sectional view of the thermostat taken along line 5-5 in Fig. 2.

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Claims (1)

475966 Scope of patent application: It can move and support the built-in soil box (53), which is: = The thermostat shell (48) of the strange thermostat (44) is formed. The engine body (5) is directly connected so that J = 3) is axially aligned with the strange temperature controller (ca) and is embedded. A sliding shape is formed in the thermostat casing (48). 2. As for the cooler of the engine) shell ^ hole (b5) of the patent application, the% box (53) can slide to switch the inlet hole 入口: i: t (moving 65 white). -It is cut off and slides smoothly with the thermostat case 0 ″. The cooling device for the engine of the third nozzle, such as the second item of the patent application, where the engine = (5) and the combined structure body (5 spots x, * f described thermostat shell ( 48) 'Destined to be held by the engine) person Shangyi quilt, ~ the assembly member (2 3).