TW200538671A - Pressure-reducing structure of an engine-oil pump for a scooter - Google Patents

Abstract

The present invention is to provide a kind of pressure-reducing structure of an engine-oil pump for a scooter. The pressure-reducing valve is installed on the cover of the engine-oil pump in the crankcase. This configuration can shorten the transmission path of the engine-oil form engine-oil pump to pressure-reducing valve and extend the life of the engine and engine-oil pump. Besides, it can efficiently simplify the manufacture process to install the pressure-reducing valve on the cover of the engine-oil pump in the crankcase because there is no need to fabricate an installment entrance for the pressure-reducing valve on the lubrication duct of the crankcase.

Description

200538671

[Technical field to which the invention belongs] The present invention is to provide a structure that can shorten the oil pressure relief path, & vehicle oil pump pressure relief structure, especially [prior art] 'Generally known speed locomotive,- One has a steering mechanism 1, a frame 2, and a bow. Whatever it is, it is mainly composed. , Seat cushion 4, etc.

The steering mechanism 1 is mainly connected to the handle 1 of the steering head tube holder. The frame 2 is composed of the steering head Λ 1 square 3 and a turn tube 2 1. support tube 2 2. lower tube 2 3. :: up 1 is constituted by installing a main body 25 toward the rear. The reinforcement tube 24 and the rear tube engine 3 are provided on the seat cushion 4 and the crankcase 3 1. The crankcase 3 1 and the 3 1 R are formed. The crankcase is sequentially inclined toward the front of the crankcase 31 on the crankcase 31. status. Below, the engine 3 includes at least a crankshaft 3 14 provided in the left crankcase 3 1 L and the right crankshaft 3 1, and the body 3 3 and the cylinder head 3 3 1 are both seat 塾 4, and the bottom portion is The seat cushion shell made of hard material is made of a soft material and covered with a decorative layer. With the above structure, the driver can sit comfortably on the seat. Please refer to FIG. 1-1 for the description of the engine 3 and the transmission box 32 on the side of the crank case 3 1 > The transmission case 32 is provided with a belt transmission mechanism D. The cylinder head 3 3 1 of the engine 3 includes a combustion chamber 3 1 1 for combustion of mixed oil and gas, and a piston 3 1 2 which reciprocates in a cylinder body 3 3 of the engine 3. The piston 3 1 2 and connected by connecting rod 3 1 3 speed

200538671 V. Description of invention (2) To crankshaft 3 1 4 The belt transmission mechanism T includes a sliding disc 3 2 1 disposed on the crankshaft 3 1 4, a driving disc 3 2 2 disposed on the crankshaft 3 1 4 and positioned on the side of the sliding disc 3 2 1- A swash plate 3 2 3 on the crankshaft 3 1 4 and located on the other side of the sliding plate 3 2 1 A weighted ball 3 restricted to be accommodated between the sliding plate 3 2 1 and the swash plate 3 2 3 2 4. The moon dagger transmits power to the passive shaft of the rear wheel RW 3 2 5. The passive disk 326 provided on the passive shaft 325, a clutch 3 27 fixed to the passive shaft 325 f, a transmission belt 328, and A transmission box cover 329 is provided on the belt and the mechanism. Wherein, the sliding disk 321 ^ = moving disk 3 2 2 forms an active disk of a belt transmission mechanism D. One end of the transmission f ▼ 3 2 8 is located between the driving disk 3 2 2 and the sliding disk t, and the other end is located between the passive disk 3 2 6. When the car and man is in motion, the fresh air and fuel introduced from the outside are mixed together and the macro-milk is 're-injected into the internal combustion engine 3 to generate power, and the ground is connected to π f 1 2 for reciprocating motion' via the crankshaft 3 1 4 Drive belt speed changing mechanism = to drive for the purpose of phase travel. Figure Guangming, see Figure 3 'Figure 3 is a partial cross-sectional view of the conventional engine 3. The balance shaft passive gear 342 can be driven by the teeth 2 ^ 4 1 of the crankshaft 314 to make the balanced vehicle 3 4 in the opposite direction. Rotate and set on the right end of the balance shaft 3 4 of the right curve j 1R, drive the sprocket 3 4 3, move the sprocket 3 4 3 with a chain 3 〇1 and the sprocket 3 set at the oil pump 3 0 3 〇2 link. Therefore, by rotating the crankshaft 3 1 4, the oil pump 3 0 can be operated with the balance shaft 3 4 as a medium.

Page 6 200538671 V. Description of the invention (3) The oil pump 3 0 3 is located on the right crankcase 3 1 R. It is mainly used to pump the oil when the engine 3 is running, so that the internal engine 3 The parts can be lubricated. An oil discharge port 3 0 5 is provided on the left side of the oil pump 3 0 3, and an oil passage 3 is extended to the left crankcase 3 丄 L starting from the oil discharge port 3 05. The oil passage 3 0 6 The left end is bent in a vertical direction to form an oil guide path I 〇7, which can guide the oil to the oil filter 3 0 4 ° provided on the crankcase 3 1 L «oil filter Cleaner 3 〇4 'There are filter elements 3 0 4 a and oil drain passages 3 0 4 b which can filter oil impurities inside. Please refer to Figure 4. Figure 4 is also a partial cross-sectional view of a conventional engine. After reaching the oil filter 3 〇4, after filtering 1 piece 3 0 4 a, it is filtered by the filter element 3 0 4 a, and then flows out of the oil drain passage 3 0 4 b to the internal parts of the engine 3 for lubrication. When the engine 3 is running, the oil pump 3 will be held; the oil will be pumped out continuously for lubrication of the parts, so the pressure in part of the oil circuit will be too high, and the excessive pressure will be released. " u-A pressure relief valve 3 0 8 will be set on the left crankshaft phase 3 1 L. This pressure scourge 3 D «M $ $ & ^^, the oil is discharged to the pressure relief valve 3 0 8 The crankshaft phase 3 is re-used in the bottom of the engine. However, the conventional pressure relief valve 3 008 where the left crankcase 3 χ Ljl :: placed on the right crankcase 3 1 R near the oil filter 'therefore leads to = Engine oil pump 3 0 3 is set at 1. Due to the following shortcomings of engine oil from the engine oil system: The long diameter causes the steam pressure to be too slow, causing the valve 3 0 8 to be connected to the engine oil pump 3 〇3. Reduced life.

Page 7 200538671

2. Due to the long pressure relief path, the pressure relief is too slow, which reduces ^ and the oil durability is poor. Brother 3 3. Must install the 3 0 8 mounting port on the crankcase 3 1 lubricating oil road, which causes the complicated process of the crank case 3 i = Min. So how can we effectively improve the above disadvantages? . Urgent issues for manufacturers. It is a locomotive. [Abstract] The main purpose of the present invention is to provide a pressure locomotive pressure structure, which is mainly to bleed the pump of the oil pump in the crankcase = cover 'II, so as to make the oil The oil delivery path is shortened by the oil pump to improve the life of the engine and oil spring. The second purpose of the present invention for the pressure valve is to provide a speed gram machine pressure structure, which is used to spleen ^ to strike μ ^, early machine: / Covered by Guoguo, the crankshaft lubricant is processed on the road The grommets can effectively reduce the machining process of the crankcase. Female description [Implementation] In order to make it easier for your reviewing committee to understand the effectiveness of the present invention, the drawings are described as follows: The structure of the locomotive is set under the seat cushion. This part is the same as the conventional knowledge, so it is here. Engine Please refer to Figure 5 first, the double-sounding sound R η α moving box 5 2, the transmission = the transmission set on the crankcase 5 1-side. Among them, the engine 5 gas 23 belt transmission mechanism P the gas combustion combustion chamber = Γ 1 inner bag ... for mixing oil in the cylinder body 5 3 of the engine 5 5200538671 V. Description of the invention (5) Reciprocating motion The piston 5 1 2 is connected to the crankshaft 514 through a connecting rod 513. The crankcase 51 is formed by combining left and right crankcases 5 1 L and 5 1R, which are divided left and right. A generator is provided on the right end of the crankshaft 5 1 4 in the horizontal direction in the crankcase 5 1. 5 1 5, the generator 5 1 5 is covered with a crankcase cover 5 1 6 on the outside, and the generator 5 1 5 drives the rotation of the silent chain 5 1 7, and the rotation of the main shaft 518 by the silent chain 5 1 7 . Λ The main shaft 5 1 8 is provided with a belt speed-changing mechanism P through the left crankcase 5 1 L system. The belt speed-changing mechanism P includes one provided on the main shaft 5 i 8; The main shaft 5 1 8 is located on the sliding disk 5 2 1-side of the driving disk 5 2 2, one is disposed on the main shaft 5 1 8 and is located on the other side of the sliding disk 5 2 1 on the other side of the sliding plate 5 2 3. A weighted ball 5 2 4 restricted between the sliding plate 5 2 1 and the inclined plate 5 2 3. A passive shaft 5 2 capable of transmitting power to the rear wheel rw 5. The driven plate 5 2 6 on the shaft 5 2 5, a clutch 527 fixed on the driven shaft 525, a transmission belt 528, and a transmission case cover 5 2 9 provided outside the belt speed change mechanism P. Among them, the sliding disk 5 2 1 and the driving disk 5 2 2 form an active disk of a belt transmission mechanism p. One end of the transmission belt 5 2 8 is located between the driving plate 5 2 2 and the sliding plate = 5 2 1 and the other end is located in the passive plate 5 2 6; After the fresh air and fuel oil introduced from the outside are combined into oil and gas, the oil and gas is input into the internal combustion engine 5 to generate power, and the piston 5 is pushed for reciprocating motion, and the crankshaft 5 i 4 passes through the main shaft 5 =

200538671 V. Description of the invention (6) The belt transmission mechanism P is driven for transmission to achieve-, please refer to Fig. 6. This is the purpose of the engine of the present invention. Partial cross-sectional view, the left crankcase 5 i L is mainly provided with a local valve 56 of engine oil ^ = 1 L, wherein b5 is located at an appropriate distance from the crankshaft 514, the pressure relief and the balance shaft 54 are provided with a balance shaft gear 541 at the end. The crank shaft 54 is provided at its end with a crankshaft 2 = 14-a which can mesh with the balance shaft gear 541. An oil pump drive shaft 5 5 1 4 is provided with an oil pump drive shaft 5 5 1, #, a moving shaft 5 5 1-a passive sprocket 5 5 2 is provided at one end, and a driving sprocket 5 is provided at the balance S ^ = f 7 4 2, the drive sprocket 5 4 9 d end 5 4 3 is set on the oil pump drive shaft 5 5 1 — passive sprocket 5 5 on the end, and «link, and the oil pump 5 5 is on the left crankcase 5 1 L There is an oil pump cover 5 5 3 on the wall. The oil pump cover 5 5 3 is provided with a pressure of $ 5 6. The pressure relief valve 5 6 and the oil pump 5 5 are arranged on the same i side of the left crankcase 5 1 L. And the engine oil fruit 5 5 and the pressure relief valve 56 are located between the left crankcase 5 1 l and the right crankcase 5 1R. Therefore, through the rotation of the crankshaft 5 1 4 and the balance shaft 5 4 as the medium through the driving sprocket 5 4 2, the chain 5 4 3, and the passive sprocket 5 5 2 can make the oil pump drive shaft 5 5 1 rotate. The non-pressure valve 5 6 is mainly composed of a ¾ pressure sleeve 5 6 1, a pressure column 5 6 2 and an elastic element 5 6 3. Among them, the pressure relief 6 5 6 2 and the elastic element 5 6 3 are installed. The pressure relief sleeve 5 6 1 is disposed on the oil pump cover 5 5 3, and the pressure relief sleeve 5 6 1 is provided with a wave pressure hole 5 6 1 on the sleeve wall. a. When the engine oil system 5 is activated, the engine oil is pressurized and pumped out.

Page 10 200538671 1 L and R will first explain the left crank oil of the crankcase oil system from port 5 5 port 5 5 Lubricating steam will enter the oil system crankcase view, 5 8b 5 1 R slightly according to the invention 5 1 R system 5 7 Axle box side oil inlet a enter b pump out Figure 8 is filled with the arrow view 'oil filter遽 Hou Road 5 7 channel 5), a cylinder head 5 right lubricating system 5 8 side into the right, please enter. However, due to the time difference, the left crankshaft oil circuit 糸 5 is shown in the schematic diagram 5 7 a into the oil pump 5, and the oil is located on the right side of the local ring groove 5 7 S. Please refer to Figure is (pictured, flows into left e, Enter 7 f through part of the oil passage 5 in 31, see the schematic diagram, the oil circuit see Figure 15, the description of invention (7) into the left and right crankcase 5 through the left crankcase road system 5 7 left crankshaft eight What's wrong? In Figure 7A-5 1 L, the oil pump 5 5 plus 5 7 b flows out of the oil outlet 5 (see Figure 10, Figure 11 and Figure 1) (the oil is shown in figure 1), and the machine 5 7 d, then Lubrication in the road 5 7e into the cylinder head, and another right crankshaft two 'C oil in Figure 12 and Figure 12 flows into the right crankcase 5 1 L, 5 1 5 1 L, so' right box 5 1 L 7 is a cross-sectional view of the invention A, the oil is derived after the pressure is introduced. Please refer to the machine 11 flowing out of b. Figure 10 of the B — B ring groove 5 7 c The oil will enter the left oil after passing through the oil. (Please cooperate with Figure 5 31, part of the oil is tank 5 1 r is the right-C part of the present invention partially cut the right lubricating oil path The oil flowing into the left and the engine oil will pass through the tank 5 1 L oil system 5 8 〇 Figures 6, 7, and 'The figure 8 is connected to the left crankcase 5, the view from the oil outlet of the engine, from c, then please View, eight, nine, and eleven imaginary line lubricating oil intersections into the left lubricating oil crankshaft 5 1 4 channel 5 7 g rocker and other machines 8 a ° Figures 12 and 10 and Figure 13 series of ports 5 8 a fifteen,

The engine drive shaft 5 5 1 of the present invention will accumulate in 5 7 and 5 8 Please refer to FIG. 5 1 When the oil is in 1 L, the oil pressure column 5 6 2 of the oil pump 5 is pushed out to the crankcase 5 and the force is restored Original position when normal. 200538671 E «, description of invention (8)

Figure 14 is a partial cross-sectional view of Figure 12 according to the direction of the arrow γ @ < is a partial cross-sectional view of Figure 14d ~ d. Fifteen engine oil will follow the oil path _ partly through the passage (please refer to Figure 5 for reference) Double entry :: car: 5 i 4 into the cylinder head 5] 1 hit a ^ ^ p knife through the passage 58d pieces. The head 531 lubricates the sliding path of the rocker arm and the like in the cylinder head 531. As described above, the oil pump 5 5 is driven by the rotation of the oil man, and the oil in the lower part of the oil pump 5 and the crank case 51 is delivered to the oil. Road system house 0 The pressure relief valve 5 6 of the present invention is directly arranged on the oil pump cover 5 5 3 of the left crankshaft to pump 5 5. When the engine 5 is operated, the oil pressure pump is continuously pumped out for lubrication of the parts. When the force is too large, the oil will open the pressure relief sleeve 5 61 > Opening the oil with excessive pressure from the pressure relief hole 5 6 1 a $ 1 in the bottom can immediately release the excessive pressure, which is 'elasticity' The element 5 6 3 will push the pressure column 5 6 2 to β. The pressure relief structure of the oil pump of the present invention, by directly setting the pressure relief valve 5 6; the oil pump cover of the oil pump 5 5 of the left crankcase 5 1 On 5 5 3, at least the following advantages can be achieved: $ 1 · Because the path of the oil output from the oil pump 5 5 to the pressure relief valve 5 6 is large and short, it can immediately release the oil pressure and make the use of the oil pump 5 5 Effective increase of life. 1 β

Page 12 200538671

Pressure Relief, Life of Engine 5 The oil pump 55 does not need to be installed at 56. It is effective 〇 The pressure set at the left crankcase 5 1 is used to quickly release the pressure. The availability between the crankcase 5 1 L and the right curve. The structure, by reducing the pressure relief valve, effectively shorten the line pressure circuit. In addition, the pressure relief valve can straighten the lubricating oil circuit to make a detailed and innovative review of the key review committee. 2 · The pressure relief path is large Shortened, the durability of the oil can be greatly improved. · 3 · Relief valve 5 6 can be directly assembled on the lubricating oil path of the engine crankcase 5 1 to reduce the pressure on the crankcase 5 1 to process the lubricating oil path 4 · Connect the oil pump 5 5 and the pressure relief valve 5 6 L To the right crankcase 5 1 R, it can be too large and flow back to the bottom of the crankcase 5 1, and the space formed by the left crankcase 5 1 R can be lifted up. As mentioned above, the oil pump of the invention The pressure of the oil pump cover diameter of the oil pump placed on the left crankcase, which increases the service life of the oil pump and the engine and is assembled on the oil pump, effectively reducing the crankcase travel. 'Ling filed an application for an invention in accordance with the law, and prayed for the grant of patents, which is of great virtue. 200538671 Brief description of the drawings [Illustration of the drawings] Fig. 1 is a schematic side view of a conventional Scotec locomotive. Figure 2 is a schematic diagram of a conventional engine section. Figure 3 is a schematic diagram of a partial cross section of a conventional engine. Figure 4 is a schematic diagram of a partial cross section of a conventional engine. Figure 5 is a schematic diagram of a cross section of the engine of the present invention. Fig. 6 is a partial sectional view of the left crankcase of the present invention. FIG. 7 is a schematic side view of the left crankcase of the present invention. Fig. 8 is a sectional view of Fig. 7A-A. Figure IX is a partial view on the right side of Figure VIII. FIG. 10 is a view in the direction of arrow S in FIG. 7. Fig. 11 is a partial sectional view of Fig. 10 B-B. FIG. 11 is a schematic side view of the right crankcase of the present invention. Fig. 12 is a partial cross-sectional view of Fig. 12 C-C. Fig. 14 is a partial view of Fig. 12 in the direction of arrow γ. Fig. 15 is a partial sectional view of Fig. 12 D-D. [Illustration of drawing number] 1 1 Steering head socket 2 1 Main pipe 2 3 Down pipe 2 5 Rear pipe 3 1 Crankcase 3 1 R Right-curving car case 3 1 2 Piston 1 Steering mechanism 2 Frame 1 2 Steering handle 2 2 Support tube 2 4 Strengthen tube 3 Engine 333 L Left crankcase 1 Combustion chamber 3 Connecting rod

Page 14 200538671 Simple illustration 3 1 4 Crankshaft T belt drive mechanism 3 3 3 3 3 3 3 3 3 3 3 3 3 4 Seat cushion 5 Engine 5 5 5 5 5 5 5 5 2 Gearbox 2 2 Drive disc 2 4 Counterweight ball 2 6 Passive disk 2 8 Transmission belt 3 Cylinder body 4 Balance shaft 4 2 Passive gear 0 1 Chain 0 3 Oil pump 0 4 a Filter element 0 5 Oil outlet 0 7 Oil guide path 1 Crankcase 1 R Right Crankcase 1 2 Piston 1 4 Crankshaft 1 6 Crankcase cover 1 8 Spindle 2 Gearbox 2 2 Drive disc 3 2 1 Sliding disc 3 2 3 Swash plate 3 2 5 Passive shaft 3 2 7 Clutch 3 2 9 Gearbox cover 3 3 1 Cylinder head 3 4 1 Gear 3 4 3 Drive sprocket 3 0 2 Passive sprocket 3 0 4 Oil filter, cleaner 3 0 4 b Oil drain passage 3 0 6 Oil passage 3 0 8 Pressure relief valve 5 1 L Left crankshaft Box 5 1 1 Combustion chamber 5 1 3 Connecting rod 5 1 5 Generator 5 1 7 Silent chain P belt transmission 5 2 1 Sliding plate 5 2 3 Swash plate

Page 15 200538671 Brief description of the diagram 5 2 4 Counterweight ball 5 2 5 Passive shaft 5 2 6 Passive disc 5 2 7 Clutch 5 2 8 Transmission belt 5 3 Cylinder body 5 3 1 Cylinder head 5 4 Balance shaft 5 4 1 Balance Shaft gear 5 4 2 Horse zone movable sprocket 5 4 3 Chain 5 5 Oil pump 5 5 1 Oil pump horse zone moving shaft 5 5 2 Passive key wheel 5 5 3 Oil pump cover 5 6 Pressure relief valve 5 6 1 Pressure relief sleeve Cylinder 5 6 1 a Pressure relief hole 5 6 2 Pressure relief column 5 6 3 Elastic element 5 7 Oil circuit system 5 7 a Oil inlet a 5 7 b Oil outlet π 5 7 C Ring groove 5 7 d Left lubricating oil port 5 7 e Left lube oil channel 5 7 f Channel 5 7 g Channel 5 8 Oil circuit system 5 8 a Right oil lubrication port 5 8 b Right oil oil channel 5 8 c Channel 5 8 d Channel

Page 16

Claims (1)

200538671 VI. Scope of patent application1. A pressure relief structure of a speed locomotive oil pump. The speed locomotive is provided with an engine under the seat cushion. The engine mainly includes a cylinder head, a FAW red body, and a crankcase. An organic oil pump is provided on the crankcase, which is characterized in that a pressure relief valve is provided on the pump cover of the oil pump, and the pressure relief valve and the oil pump are arranged on the same side of the crankcase. 2 · A pressure relief structure of a speed locomotive oil pump as described in item 1 of the scope of the patent application, wherein the oil pump and pressure relief threshold are set at the left crankcase 3 · As the scope of the patent application, the first oil fruit, rabbit Press the structure far, where the oil is between the right crankcase. A type of speed locomotive locomotive as described in the item, the pressure relief valve is located on the left crankcase and