A multi-loop adaptive filtration component for fuel and lubricating oil in a turboshaft hybrid engine

Abstract

This utility model discloses a multi-loop adaptive filtration component for fuel and lubricating oil in a turboshaft hybrid engine, including a fuel and lubricating oil tank, a distribution tank, and an accessory housing. The side end of the fuel and lubricating oil tank and the output end of the accessory housing are connected by a multi-loop return oil pipe. A T-shaped slide rod is slidably fitted inside the tank. The top end of the T-shaped slide rod extends out of the tank and is fixedly connected to the bottom surface of a scraper. A second sealing ring is slidably fitted on the vertical rod of the T-shaped slide rod and is located inside the tank and fixedly connected to the top surface of the tank. The output end of the motor drives the scraper to swing on the bottom surface of the filter screen through a push module, cleaning the impurities adhering to the bottom surface of the filter screen to both sides of the filter screen, reducing the effect of fuel and lubricating oil on impurities, and allowing the impurities to fall to the bottom surface of the filter chamber due to their own gravity, increasing the oil output of the filter screen and facilitating the recycling of fuel and lubricating oil.

Description

Technical Field

[0001] This utility model relates to the field of fuel lubricant technology, specifically to a multi-loop adaptive filtration component for fuel lubricant in a turboshaft hybrid engine. Background Technology

[0002] In turboshaft hybrid engines, fuel oil plays a role in lubrication, cooling, cleaning, and some hydraulic functions. The fuel oil is stored in a fuel oil tank, and the oil level sensor monitors the oil level in real time to ensure that the lubrication system has sufficient oil supply.

[0003] The existing turboshaft hybrid engine fuel lubricating oil multi-loop adaptive filtration assembly mainly consists of a filter chamber and a filter screen. The fuel lubricating oil pump pressurizes and draws the fuel lubricating oil from the fuel lubricating oil tank. The oil enters the filter chamber through the oil outlet pipe. After being filtered by the filter screen, the oil enters the oil distribution tank through the oil outlet pipe. Then, through the oil distribution tank, the oil enters the bearings and gearboxes, jet lubrication high-speed bearings, reduction gears and other mechanical parts in the accessory housing for lubrication, cooling and cleaning. Finally, the oil enters the multi-loop return pipe through the output end of the accessory housing and returns to the fuel lubricating oil tank for recycling.

[0004] The operation of mechanical parts leads to wear and tear. Impurities that fall off during wear enter the fuel oil tank through the multi-circuit return oil pipe, and then enter the filter chamber through the fuel oil pump and the oil outlet pipe. The impurities are filtered by the filter screen before being recycled. The high vertical pressure of the fuel oil can easily cause impurities to be pushed against the bottom surface of the filter screen directly above the oil outlet pipe, clogging the filter screen. This reduces the amount of oil that can be discharged from the filter screen and affects the overall circulation of the fuel oil. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a multi-loop adaptive filtration component for fuel and lubricating oil in a turboshaft hybrid engine to overcome the limitations of existing technologies. Existing multi-loop adaptive filtration components for fuel and lubricating oil in turboshaft hybrid engines mainly consist of a filter chamber and a filter screen. The fuel and lubricating oil pump pressurizes and draws fuel and lubricating oil from the fuel and lubricating oil tank, which then enters the filter chamber through the oil outlet pipe. After filtration by the filter screen, the oil enters the oil distribution tank through the oil outlet pipe. From there, it enters the bearings and gearboxes, high-speed bearings, reduction gears, and other mechanical components in the accessory housing for lubrication, cooling, and cleaning. Finally, it returns to the fuel and lubricating oil tank for recycling after passing through the output end of the accessory housing into the multi-loop return pipe.

[0006] The operation of mechanical parts leads to wear and tear. Impurities that fall off during wear enter the fuel oil tank through the multi-circuit return oil pipe, and then enter the filter chamber through the fuel oil pump and the oil outlet pipe. The impurities are filtered by the filter screen before being recycled. The high vertical pressure of the fuel oil can easily cause impurities to be pushed against the bottom surface of the filter screen directly above the oil outlet pipe, clogging the filter screen. This reduces the amount of oil that can be discharged from the filter screen and affects the overall circulation of the fuel oil.

[0007] This utility model is implemented by the following technical solution: A multi-loop adaptive filtration assembly for fuel and lubricating oil in a turboshaft hybrid engine includes a fuel and lubricating oil tank, a distribution tank, and an accessory housing. The side end of the fuel and lubricating oil tank is connected to the output end of the accessory housing via a multi-loop return oil pipe. An oil outlet pipe is connected to the top surface of the fuel and lubricating oil tank, and the input end of the oil outlet pipe is connected to a fuel and lubricating oil pump. An oil outlet pipe is connected to the side end of the distribution tank. The oil outlet pipe and the oil outlet pipe are connected through a filter chamber, and the oil outlet pipe passes through the filter chamber. A filter screen is fixedly connected to the inner side wall of the filter chamber. A scraper is slidably mounted on the bottom surface of the filter screen. A push module is movably connected to the bottom surface of the scraper. The push module can push the scraper to always be in contact with the bottom surface of the filter screen. The bottom end of the push module is fixedly connected to the output end of a motor. The motor extends out of the filter chamber and is fixed to the outer side wall of the filter chamber. The output end of the motor is rotatably connected to the filter chamber. A first sealing ring is fitted and rotatably on the output end of the motor and is fixedly embedded in the inner wall of the filter chamber.

[0008] Preferably, the surface of the filter screen is corrugated, and the bottom surface of the filter screen directly above the oil outlet pipe is an outwardly convex arc surface.

[0009] Preferably, the longitudinal cross-sectional shape of the scraper is teardrop-shaped.

[0010] Preferably, the pushing module includes a barrel fixed to the output end of the motor, a T-shaped slide rod is slidably disposed inside the barrel, the top end of the T-shaped slide rod protrudes from the barrel and is fixedly connected to the bottom surface of the scraper rod, a second sealing ring is slidably sleeved on the vertical rod of the T-shaped slide rod and the second sealing ring is disposed in the barrel and fixedly connected to the top surface of the barrel, and a compression spring is fixedly connected to the bottom surface of the horizontal rod of the T-shaped slide rod and the compression spring is disposed in the barrel.

[0011] Preferably, the inner bottom surface of the filter chamber is inclined, and a drain pipe is fixedly connected to the side wall of the filter chamber. The input end of the drain pipe is located near the lower surface of the inner bottom surface of the filter chamber. A first valve is installed on the side wall of the drain pipe, and a second valve is installed on the side wall of the oil outlet pipe.

[0012] Preferably, two guide plates are fixedly connected to the side wall of the filter chamber away from the motor. The guide plates are arranged on both sides of the oil outlet pipe output end. The inner wall of the filter chamber fixed to the motor does not contact the guide plates, and the distance between the two is greater than the thickness of the barrel.

[0013] Preferably, the top surface of the guide plate is an inclined surface, and the inclined surface is inclined downward along the direction away from the output end of the oil outlet pipe. The cross-sectional shape of the guide plate is V-shaped, and the openings of the two guide plates are arranged facing each other.

[0014] The advantages of this utility model are as follows: A scraper is slidably attached to the bottom surface of the filter screen in the filter chamber. The output end of the motor drives the scraper to swing on the bottom surface of the filter screen through the push module, cleaning the impurities adhering to the bottom surface of the filter screen to both sides of the filter screen. This reduces the effect of the lubricating oil on the impurities, allowing the impurities to fall to the bottom surface of the filter chamber due to their own gravity, thereby increasing the oil output of the filter screen and facilitating the recycling of the lubricating oil. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a rear view of the structure described in this utility model; Figure 3 This is a side view of the structure described in this utility model; Figure 4 This is a partial enlarged view of the structure described in this utility model; Figure 5 This is a schematic diagram of the installation of the structure described in this utility model; Figure 6 The structure described in this utility model Figure 5 A partial side view; Figure 7 The structure described in this utility model Figure 5 A magnified view of a portion of the image.

[0017] In the diagram: 1. Fuel tank; 2. Multi-circuit return oil pipe; 3. Oil outlet pipe; 4. Oil outlet pipe 1; 5. Oil distribution tank; 6. Accessory housing; 7. Filter chamber; 8. Filter screen; 9. Motor; 10. Barrel body; 11. First sealing ring; 12. T-shaped slide bar; 13. Scraper bar; 14. Second sealing ring; 15. Compression spring; 16. Waste discharge pipe; 17. First valve; 18. Second valve; 19. Guide plate. Detailed Implementation

[0018] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0019] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0020] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0021] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] like Figures 1-7 As shown, this utility model provides the following technical solution: a multi-loop adaptive filtration assembly for fuel and lubricating oil in a turboshaft hybrid engine, including a fuel and lubricating oil tank 1, a distribution tank 5, and an accessory housing 6. The side end of the fuel and lubricating oil tank 1 and the output end of the accessory housing 6 are connected through a multi-loop return oil pipe 2. An oil outlet pipe 4 is connected to the top surface of the fuel and lubricating oil tank 1, and the input end of the oil outlet pipe 4 is connected to a fuel and lubricating oil pump. An oil outlet pipe 3 is connected to the side end of the distribution tank 5. The oil outlet pipe 3 and the oil outlet pipe 4 are connected through a filter chamber 7, and the oil outlet pipe 4 passes through the filter chamber 7. A filter screen 8 is fixedly connected to the inner wall of the filter chamber 7. A scraper 13 is slidably attached to the bottom surface of the filter screen 8. A push module is movably connected to the bottom surface of the scraper 13. The push module can push the scraper 13 to always be in contact with the bottom surface of the filter screen 8. The bottom end of the push module is fixedly connected to the output end of the motor 9. The motor 9 passes through the filter chamber 7 and is fixed to the outer wall of the filter chamber 7. The output end of the motor 9 is rotatably connected to the filter chamber 7. A first sealing ring 11 is attached to the output end of the motor 9 and is fixedly embedded in the inner wall of the filter chamber 7.

[0023] The operation of the mechanical parts in the accessory housing 6 causes wear and tear on the parts. The lubricating oil carries the impurities that fall off due to wear into the lubricating oil tank 1 through the multi-circuit return oil pipe 2, and then into the filter chamber 7 through the lubricating oil pump and the oil outlet pipe 4. The impurities are filtered by the filter screen 8 and then recycled. The high pressure of the lubricating oil can easily push the impurities to the bottom surface of the filter screen 8 directly above the oil outlet pipe, clogging the filter screen 8. The operating controller causes the output end of the motor 9 to vibrate. The output end of the motor 9 drives the scraper 13 to vibrate on the bottom surface of the filter screen 8 through the push module, pushing the impurities adhering to the bottom surface of the filter screen 8 to both sides of the filter screen 8. This reduces the force of the lubricating oil pushing the impurities, allowing the impurities pushed to both sides of the filter screen 8 to slide down to the inner bottom surface of the filter chamber 7 due to their own gravity. This cleans the filter screen 8, reduces the clogging of the filter screen 8 by impurities, increases the oil output of the filter screen 8, and facilitates the recycling of the entire lubricating oil.

[0024] The first sealing ring 11 ensures the sealing of the connection between the output end of the motor 9 and the filter chamber 7, preventing oil leakage.

[0025] The surface of the filter screen 8 is corrugated, which increases the filtration area of ​​the filter screen 8 in the fixed space. The bottom surface of the filter screen 8, which is directly above the oil outlet pipe 4, is an outwardly convex arc surface. This makes it easier for the lubricating oil sprayed from the output end of the oil outlet pipe 4 to push the impurities adhering to the bottom surface of the filter screen 8 directly above the oil outlet pipe 4 away from the bottom of the filter screen 8, thereby reducing the vertical thrust of the lubricating oil on the impurities and reducing the adhesion of the impurities.

[0026] The longitudinal cross-sectional shape of the scraper 13 is teardrop-shaped, which changes the flow direction of impurities and prevents the lubricating oil carrying impurities from being sprayed out through the oil outlet 4 from adhering to the bottom surface of the scraper 13, thereby reducing the load on the scraper 13 during swinging.

[0027] In the embodiment of the pushing module, the pushing module includes a barrel 10 fixed to the output end of the motor 9. A T-shaped slide rod 12 is slidably disposed inside the barrel 10. The top end of the T-shaped slide rod 12 extends out of the barrel 10 and is fixedly connected to the bottom surface of the scraper rod 13. A second sealing ring 14 is slidably sleeved on the vertical rod of the T-shaped slide rod 12 and is disposed in the barrel 10 and fixedly connected to the top surface inside the barrel 10. A compression spring 15 is fixedly connected to the bottom surface of the horizontal rod of the T-shaped slide rod 12 and is disposed in the barrel 10.

[0028] The output of motor 9 drives barrel 10 to swing, barrel 10 drives T-shaped slide bar 12 to swing, and T-shaped slide bar 12 drives scraper 13 to swing on the bottom surface of filter screen 8 to clean the bottom surface. The second sealing ring 14 ensures the sealing of the connection between barrel 10 and T-shaped slide bar 12, preventing lubricating oil from entering barrel 10 and affecting the sliding of T-shaped slide bar 12. When scraper 13 works on the bottom surface of filter screen 8 for a long time and becomes worn and can no longer fit with the bottom surface of filter screen 8, compression spring 15 will push T-shaped slide bar 12 to move. T-shaped slide bar 12 drives scraper 13 to move and fit with the bottom surface of filter screen 8 again, extending the service life of scraper 13 and facilitating the cleaning of the bottom surface of filter screen 8.

[0029] When the scraper 13 slides over the convex arc surface of the bottom of the filter screen 8, the convex arc surface of the filter screen 8 will push the scraper 13 to move. The scraper 13 drives the T-shaped slide bar 12 to move, compressing the spring 15 and causing it to deform. When the scraper 13 passes over the concave arc surface of the filter screen 8, the spring 15 will push the scraper 13 to fit against the concave arc surface of the filter screen 8 through the T-shaped slide bar 12. This ensures that the scraper 13 is always in contact with the bottom surface of the filter screen 8, making it easy to clean the bottom surface of the filter screen 8.

[0030] The inner bottom surface of the filter chamber 7 is inclined, and the side wall of the filter chamber 7 is fixedly connected to the discharge pipe 16. The input end of the discharge pipe 16 is located near the lower surface of the inner bottom surface of the filter chamber 7. A first valve 17 is installed on the side wall of the discharge pipe 16, and a second valve 18 is installed on the side wall of the oil outlet pipe 3.

[0031] When it is necessary to clean the impurities on the inner bottom surface of the filter chamber 7, open the first valve 17 and close the second valve 18 at the same time. The oil sprayed from the output end of the oil outlet pipe 4 pushes the impurities that fall onto the inner bottom surface of the filter chamber 7 to flow along the inclined surface of the inner bottom surface of the filter chamber 7 and be discharged along the impurity discharge pipe 16, thereby cleaning the impurities. After cleaning is completed, close the first valve 17 and open the second valve 18 at the same time.

[0032] Two guide plates 19 are fixedly connected to the side wall of the filter chamber 7 away from the motor 9. The guide plates 19 are set on both sides of the output end of the oil outlet pipe 4, which serves to block the thrust of the lubricating oil and facilitate the free fall of impurities pushed to both sides of the filter screen 8. The inner wall of the filter chamber 7 fixed to the motor 9 does not contact the guide plates 19 and the distance between the two is greater than the thickness of the barrel 10, which facilitates the swing of the barrel 10 and prevents the guide plates 19 from hindering the swing of the barrel 10.

[0033] The top surface of the guide plate 19 is inclined and the inclined surface is set downward along the direction away from the output end of the oil outlet pipe 4, so that impurities falling on the top surface of the guide plate 19 can fall down along the inclined surface of the top surface of the guide plate 19. The cross-sectional shape of the guide plate 19 is V-shaped and the openings of the two guide plates 19 are set facing each other, which increases the blocking area of ​​the guide plate 19 against the thrust of the fuel and lubricating oil, and facilitates the falling of impurities.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A turboshaft hybrid engine fuel oil multi-circuit adaptive filtration assembly, characterized by, The system includes a fuel oil tank, a fuel distribution tank, and an accessory housing. The side end of the fuel oil tank is connected to the output end of the accessory housing via a multi-circuit return oil pipe. An oil outlet pipe is connected to the top surface of the fuel oil tank, and the input end of the oil outlet pipe is connected to a fuel oil pump. An oil outlet pipe is connected to the side end of the fuel distribution tank. The oil outlet pipe and the oil outlet pipe are connected through a filter chamber, and the oil outlet pipe passes through the filter chamber. A filter screen is fixedly connected to the inner side wall of the filter chamber. A scraper is slidably mounted on the bottom surface of the filter screen. A push module is movably connected to the bottom surface of the scraper. The push module can push the scraper to always be in contact with the bottom surface of the filter screen. The bottom end of the push module is fixedly connected to the output end of a motor. The motor passes through the filter chamber and is fixed to the outer side wall of the filter chamber. The output end of the motor is rotatably connected to the filter chamber. A first sealing ring is fitted and rotatably on the output end of the motor, and the first sealing ring is fixedly embedded in the inner wall of the filter chamber.

2. The turboshaft hybrid engine fuel-oil multi-circuit adaptive filtration assembly according to claim 1, characterized in that: The surface of the filter screen is corrugated, and the bottom surface of the filter screen located directly above the oil outlet pipe is a convex arc surface.

3. The turboshaft hybrid engine fuel-oil multi-circuit adaptive filtration assembly according to claim 1, characterized in that: The longitudinal cross-sectional shape of the scraper is teardrop-shaped.

4. The turboshaft hybrid engine fuel-oil multi-circuit adaptive filtration assembly of claim 1, wherein: The pushing module includes a barrel fixed to the output end of the motor. A T-shaped slide rod is slidably fitted inside the barrel. The top end of the T-shaped slide rod protrudes from the barrel and is fixedly connected to the bottom surface of the scraper. A second sealing ring is slidably fitted on the vertical rod of the T-shaped slide rod and is disposed inside the barrel and fixedly connected to the top surface inside the barrel. A compression spring is fixedly connected to the bottom surface of the horizontal rod of the T-shaped slide rod and is disposed inside the barrel.

5. The turboshaft hybrid engine fuel-oil multi-circuit adaptive filtration assembly of claim 1, wherein: The inner bottom surface of the filter chamber is inclined, and a drain pipe is fixedly connected to the side wall of the filter chamber. The input end of the drain pipe is located near the lower surface of the inner bottom surface of the filter chamber. A first valve is installed on the side wall of the drain pipe, and a second valve is installed on the side wall of the oil outlet pipe.

6. The multi-loop adaptive filtration assembly for the fuel and lubricating oil of the turboshaft hybrid engine according to claim 4, characterized in that: Two guide plates are fixedly connected to the side wall of the filter chamber away from the motor. The guide plates are set on both sides of the oil outlet pipe output end. The inner wall of the filter chamber fixed to the motor does not contact the guide plates and the distance between the two is greater than the thickness of the barrel.

7. The turboshaft hybrid engine fuel-oil multi-circuit adaptive filtration assembly according to claim 6, characterized in that: The top surface of the guide plate is inclined and the inclined surface is set downward along the direction away from the output end of the oil outlet pipe. The cross-sectional shape of the guide plate is V-shaped and the openings of the two guide plates are set facing each other.

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