TWI234606B - Structure of cooling water passage of engine cylinder head - Google Patents

Abstract

The present invention provides a structure of a cooling water passage of an engine cylinder head, which mainly includes a gasket inserted between the cylinder body and the cylinder head. A cooling water communication opening is formed on the exhaust passage side of the gasket. The cooling water enters the cylinder head through the cooling water communication opening. Through the restriction of a blocking component, the flow path of the cooling water is lengthened. Furthermore, the cooling water is set to cool the exhaust passage side having a higher temperature first, then the inlet passage side having a lower temperature, thereby uniformly absorbing the heat generated by the cylinder head during operation of an engine and increasing the cooling and heat dissipation performance, in order to achieve the heat dissipation effect on the whole cylinder head and avoiding the occurrence of deformation on the components caused by non-uniform heat dissipation.

Description

1234606 V. Description of the invention α) [Cylinder head of the invention to which the invention belongs [the previous technology is based on the introduction of an external guide into the engine combustion shaft to drive the belt and the engine engine, and the conventional water-cooled 1 1 and the cylinder body 1 have The intake passage has a cooling water passage 1 2 3, and the exhaust valve 1 14 2 during this compression stroke. When the oil and gas enters the explosion, the expanding and reciprocating motion of the mixed oil and gas valve 1 4 2 relates to a cooling water passage. A fresh air explosion of a general vehicle is used to generate a power transmission mechanism to dissipate the cooling water passage. Construction, especially for engine construction. Engine, such as air and fuel, but the drive for different transmission, can be as large as the engine 1, head 1 2, there is 1 2 above the life 1, 1 1 1 row, cylinder head 1 2 instantaneous combustion, 4 2, usually the pressure of the expanded gas in the combustion chamber 15, when the piston 1 enters the combustion chamber and is quickly discharged, as shown in Fig. 1 plug 13 and the cylinder head 1 gas passage 1 car, hybrid piston, divided into vehicles, valve 2 Cylinder head 1 2 Combustion chamber structure 1 4 1 There is a gas inlet valve for the valve. The all-terrain type is reciprocating for oil and gas to reach the air-cooled type. The main system is used. 1 The cylinder is equipped with 15, 4 Diameter vehicles ... After moving, the engine and water-cooled 12-cylinder body cooling water system provided by the cylinder head 4 provides a slightly larger intake valve, etc., which passes oil and gas through the curve. Water-cooled engine, the body is made up, the inside is set up, 1 is set, the oil and gas is set at 14 1 after the exhaust valve, and the ignition member (that is, the ignition force of the spark plug will power to push the piston 13 to move up and down 3, the intake The valve 1 4 1 is opened, and the internal combustion is induced within 15, and the exhaust gas after combustion is actuated by the crankshaft pushing the belt transmission mechanism at the same time.

Page 5 (1234606)), the car is in the process of cooling engine 1 water from the steam, the steam 4 week, but the water through the cooling water valve 1 4 cylinder head 1 1 2 to the cooling engine in the continuous flow of gas due to continuous inconsistency However, the 4 channels of Queshui Channel A were brought in due to heat dissipation. However, the cylinder head cylinder body cylinder head 1 (such as Road 1 1 will be transformed by the cold cooling effect of cold 1 and row 2). At the time, the ground was newly invaded by 50. In addition, the temperature difference between the cylinder head road A and the endothermic effect is not the same. It is known that the high temperature caused by the continuous operation of the vehicle is caused by the water passage 1 of the water passage A. When the cylinder head 1 is cooled, it flows upward. Between the cold 2 3 out of the engine operation V. Description of the invention (2) (not shown here because of the vehicle temperature ', therefore, when the water-cooled rotation is used, the cylinder head 1 2 inside the valve mechanism 1 body 1 1 cold passage A When the water flows to the intake air, the cylinder head is heated up by the steam to reach the temperature at which the pilot valve 1 4 1 will be destroyed by the high temperature and the cooling water A on both sides is the same as the cooling water on the cold side. 1 4 1、1 Engine parts are easy to guide by turning the rear wheel 1 will prevent the machine from cooling due to 1 2 cooling 1 1 2 equipped with cooling arrows) 1 two sides into the water channel A air valve 1 4 2 water outlet 1 ring to absorb 0 is not the overall oil and gas Therefore, when the cooling is flowing in and out of the water-cooled 12 valve, the exhaust channel 1 is uneven, making it too large, which will cause the water-cooled approach of the parts. It will cause high damage, and it ’s used to the engine 1. Yun 1 1 enters the steam, which is set in the cooling water of the cylinder 2 and cooling water passage A, so that the same temperature generated by the cooling water, such as intake air, and the exhaust valve 1 4 2 Air valve 1 4 1, 1 4 2 Engine cooling water passage A Around the mechanism 14, when the cooling water passage located on the side of the intake passage 121 2 2 is accessible, the exhaust valve cooling uniformity is not good, causing deformation. Water-cooled structure of Engine 1

Page 6 1234606 V. Description of the invention (3) Around the cooling water channel 14, when the inlet and exhaust valves of the cooling water channel on the side of the intake channel 1 2 1 are poor, the engine is improved. [Summary of the invention] The main water passage structure of the present invention, the sheet, the gasket is made of cooling water in the drainage system, so that the cooling water flows on the air passage side, and the cylinder is cooled when the engine is running to achieve the deformation of the cylinder head. [Embodiment] In order to achieve the effect of your trial, please refer to the top view of 2 1 first, but the water inlet 2 1 1 Please refer to Figure 3, and enter the cylinder head 12 from the two sides and disperse the cooling water in the valve mechanism. When the cooling water channel A flows upward, the cooling water channel A located on the side and the exhaust channel 1 2 2 A have uneven heat absorption effects on each cooling water, which makes the temperature difference between 1 and 142 excessively large, and it is easy to cool uniform parts. Deformation due to uneven heat dissipation temperature is necessary. The main purpose is to provide a cylinder head for an engine. The main purpose is to provide a cooling water communication port on the side of the air cushion between the cylinder body and the cylinder head. The cooling port enters the cylinder head by a load. The limit path of the components is extended, and the cooling water is first cooled to the side of the higher-temperature exhaust air intake channel, which can evenly absorb the high heat generated by the head, improve the cooling effect, and the heat dissipation effect of the body to avoid the temperature The unevenness makes it easier for the investigators to understand the structure of the present invention and the illustrations with which it can cooperate. Figure 2. The cylinder body of the water-cooled engine of the present invention. The cylinder body 21 has a cooling system for cooling water to enter. A water channel 2 1 2 for cooling water circulation, please refer to the cross-sectional schematic diagram of engine 2, which includes

1234606 V. Description of the invention (4) In addition to the above-mentioned cylinder body 21, there is a cylinder head 2 2 above the cylinder body 21, which has an intake passage 2 2 1 and an exhaust gas for exhaust gas exhaust. Channel 2 2 2, a combustion chamber 2 3 for mixed fuel gas combustion, a piston 2 4 that reciprocates in the cylinder body 21, and a valve mechanism seat 2 5 that houses a valve. The engine 2 is in the cylinder body 2 1 A cymbal 2 6 is provided between the cylinder head 2 2 and the cylinder head 2 2. Among them, the cylinder head 2 2 is provided with a cooling water outlet 2 2 3 (see FIG.

(Shown), the valve mechanism seat 2 5 is an intake valve seat 2 5 1 and an exhaust valve seat 2 5 2, the gasket 2 6 is located on the exhaust passage 2 2 2 side and is provided with a cooling water communication port 2 6 1 ^ Please refer to FIG. 4 again, which is a schematic diagram of the space shape of the cylinder head 22 of the present invention in the internal cooling water passage B space. A blocking element 2 2 4 is provided at the cooling water outlet 2 2 3, and the blocking element 2 2 4 is a and The cooling water outlet 2 2 3 corresponds to the hollow pipe body, and a cutout portion a is provided at one end, and a restriction portion b is formed at the cutout portion a.

Please refer to FIGS. 2 and 3 again, when the engine 2 is running, the cooling water will enter the water channel 2 1 2 of the cylinder body 2 1 from the cooling water inlet 2 1 1 of the cylinder body 21, and when the cooling water enters the water channel 2 1 At 2 o'clock, the cooling water will flow upward from the water channel 2 1 2, and when the cooling water flows to the upper gasket 2 6, the gasket 2 6 is interposed between the cylinder body 21 and the cylinder head 2 2 and is tight. State, at this time, the cooling water will flow into the cylinder head 2 2 through the cooling water communication port 2 6 1 provided on the side of the exhaust passage 2 2 2. Please refer to FIG. 5 again, because the cooling water outlet 2 2 3 of the cylinder head 2 2 The blocking element 2 2 4 is sleeved, so when the cooling water enters the cylinder head through the cooling water communication port 2 6 1

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1234606 V. Description of the invention (5) At 2 2 hours, the cooling forces the cooling water into the lower inlet air passage. Finally, the cooling water communication port 2 2 4 is required to block the exhaust valve seat of the intake valve seat 2 2 2 3 The blocking cooling cycle is produced by the lower temperature inlet head 2 2, and the casting 2 2 4 casting 2 2 completes casting 2 2 3. In summary, with the cylinder 2 2 4, the cold exhaust channel side evenly absorbs the engine's heat dissipation effect, the temperature is uneven, and the water cannot be reached, so it is first routed to the road side. D Figure 5 2 6 1 so that 2 5 2 5 1 at the element 2 cooling water and gas generated by the high-temperature steam in the cylinder, and then block the element 2 temperature exhaust ventilation, and finally cold, six, seven ginseng into the cylinder head cooling water first, Then flow, the pipe body which finally cooled 2 4 first cools the higher side D, and can heat, and reaches the lower cylinder head 2 2 on the head. As shown in the figure, the C side of the blocking element 2 4 is blocked by the water outlet and cooled 2 At 2 o'clock, the effect of uniformly absorbing the temperature by the exhaust gas with the internal outflow temperature through the higher temperature and lower water is shown in Fig. 7, 2 2 4 passing through the solidification part b, and then flowing 2 2 3 flowing water from the pad Since the intake air that blocks the temperature of the exhaust gas passes through the cooling water, the cooling engine on the cooling channel side can be transported directly to the cooling block and can be set to the temperature. The element 6 on the side of the channel 2 is completed with π water, and the steam blocks the water outlet of the head of the cylinder when re-cooling. The cooling water exit of the head 2 2 of the engine of the present invention has a prolonged water flow path. When the cylinder head 2 2 achieves the deformation of the cylinder head's overall parts and can evenly reduce the temperature, the cooling water passage structure 2 2 3 of the cylinder head is provided with a blocking element and the cooling water first cools the higher temperature intake channel side D, And the high heat generated can improve the cooling effect of cooling to avoid heat dissipation. The cooling water passage structure that has been improved is more effective than the conventional one.

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Page ί 1234606 Brief description of the drawings [Explanation of the drawings] Fig. 1 is a schematic partial sectional view of a conventional water-cooled engine. Figure 2 is a top view of the cylinder body of the present invention. Figure 3 is a partial sectional view of the engine of the present invention. Fig. 4 is an exploded schematic view of the space form and blocking element of the cooling water passage inside the cylinder head of the present invention. Fig. 5 is a schematic diagram of the combination of the spatial form of the cooling water passage inside the cylinder head and the blocking element according to the present invention. Figure 6 is a bottom view of the cylinder head of the present invention. Fig. 7 is a schematic view of the section A-A in Fig. 6 and a combination of a gasket and a cylinder body. [Illustration of drawing number] 1 1 cylinder block 1 2 cylinder head 1 2 2 exhaust passage 1 3 piston 1 4 1 intake valve 1 5 combustion chamber 2 1 cylinder body 2 1 2 water channel 2 2 1 intake passage 2 2 3 cooling Water outlet 2 3 Combustion chamber 1 1 1 Cooling water channel 1 2 1 Intake channel 1 2 3 Cooling water outlet 1 4 Valve mechanism 1 4 2 Exhaust valve 2 1 1 Cooling water inlet 2 2 Cylinder head 2 2 2 Exhaust channel 2 2 4 blocking element 2 4 piston. 1 engine 2 engine

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Claims (1)

1234606 VI. Scope of patent application 1 · There is a cylinder. The cylinder body of the engine and the exhaust duct structure of the engine restrict the cooling water from the side of the air passage. 2 · The water passage has a gap 3 · The water passage. 4 · Queshui channel is then fixed between 5 · Queshui channel between the exhaust valve set head, a stream of water burning in the exhaust communication port, the cooling range should be in the first range, the range should be the first, and the outlet. Within the range, the cooling water flowing to the body and the cylinder air passage should be cooled. Finally, if the structure is applied for, the cooling water will be applied for the structure, the seat, and the cylinder head. The gasket burning chamber of the cylinder, the side of the channel enters the steam direction. First, the water is blocked by the steam, and the cooling water is blocked by the steam. It is characterized by a cylinder head passing through the cylinder head. One piece is a cylinder head with a straight passage structure, which forms one piece, one piece is: cooling water, cooling water through the air passage, the engine is hollow, the limiting part, the engine is an engine blocking component described in item 1, It can be located on the side of the cylinder head of the engine described in the cylinder head section after the exhaust passage is cooled. The cooling water flows first through the intake valve on the side of the intake passage. The engine head is provided with an air inlet through the cooling water passage communication port, and the side of the blocking element flows out to the inlet and outlet. The cold pipe body of the cylinder head is provided at one end. The cylinder head is colder than the cylinder head inside the cylinder head. Page 13