CN108757088B - Lubricating oil tank for dry lubrication system - Google Patents
Lubricating oil tank for dry lubrication system Download PDFInfo
- Publication number
- CN108757088B CN108757088B CN201810457104.3A CN201810457104A CN108757088B CN 108757088 B CN108757088 B CN 108757088B CN 201810457104 A CN201810457104 A CN 201810457104A CN 108757088 B CN108757088 B CN 108757088B
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- Prior art keywords
- oil
- oil tank
- pipe joint
- tank body
- outlet pipe
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 115
- 238000005461 lubrication Methods 0.000 title claims abstract description 16
- 239000003921 oil Substances 0.000 claims abstract description 310
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 230000001050 lubricating effect Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 3
- 239000010729 system oil Substances 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 2
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/0004—Oilsumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/0004—Oilsumps
- F01M2011/0029—Oilsumps with oil filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/0004—Oilsumps
- F01M2011/0083—Dry sumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
- F01M2011/031—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means characterised by mounting means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a lubricating oil tank for a dry type lubricating system, which comprises a lubricating oil tank body and an oil outlet pipe joint, wherein the oil outlet pipe joint is detachably connected with the lubricating oil tank body, and a filter screen for filtering lubricating oil is arranged on the oil outlet pipe joint. The oil tank for the dry lubrication system adopts the detachable oil outlet pipe joint of the integrated filter screen, thereby being convenient for subsequent maintenance.
Description
Technical Field
The invention belongs to the technical field of aircrafts, and particularly relates to an oil tank for a dry lubrication system.
Background
At present, a wet oil pan lubricating system is mostly adopted as an oil storage device for a piston engine, and the engine adopting the lubricating system is mainly applied to industries such as automobiles, agricultural vehicles and the like, and has larger arrangement space, so that the weight and the size of the engine are increased, the gravity center position of the engine is improved, and meanwhile, the phenomena such as oil stirring and the like can occur, and the working performance of the engine is influenced. The dry oil pan lubricating system adopts an external oil tank as an oil storage device, so that the gravity center of the engine can be lowered, and the structure of the engine can be flattened. Compared with the traditional automobile industry, the aircraft has higher requirements on the position and angle of the engine, so that the aviation piston engine often adopts a dry oil pan lubrication system.
The existing lubricating oil tank for the dry lubricating system of the aviation piston engine has the problems of inconvenient maintenance and complex structure.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the lubricating oil tank for the dry lubrication system, and aims to facilitate maintenance.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the oil tank for the dry type lubrication system comprises an oil tank body and an oil outlet pipe joint, wherein the oil outlet pipe joint is detachably connected with the oil tank body, and a filter screen for filtering oil is arranged on the oil outlet pipe joint.
The filter screen is inside hollow cylindrical structure, and the filter screen has first tip and second tip, the first tip of filter screen with the oil outlet pipe connects and connects.
The second end of the screen is closed.
The filter screen and the oil outlet pipe joint are coaxially arranged.
The oil outlet pipe joint is connected with the lubricating oil tank body through bolts.
And a sealing ring is arranged between the oil outlet pipe joint and the lubricating oil tank body.
The dry lubricating system oil tank also comprises an oil inlet pipe joint which is arranged on the oil tank body and used for enabling oil from a cylinder body of the aviation piston engine to flow into the oil tank body along the tangential direction of the inner wall surface of the oil tank body, wherein an included angle is formed between the axial direction of the oil inlet pipe joint and the axial direction of the oil tank body, and the included angle is an obtuse angle.
The oil inlet pipe joint and the oil outlet pipe joint are arranged at two opposite ends of the lubricating oil tank body.
The axis of the oil outlet pipe joint is perpendicular to the axis of the lubricating oil tank body.
The dry lubricating system oil tank also comprises an oil drain plug screw and an oil return pipe joint which are arranged on the oil tank body, wherein the oil drain plug screw and the oil outlet pipe joint are arranged at the same end of the oil tank body, and the oil return pipe joint and the oil inlet pipe joint are arranged at the same end of the oil tank body.
The oil tank for the dry lubrication system adopts the detachable oil outlet pipe joint of the integrated filter screen, thereby being convenient for subsequent maintenance.
Drawings
The present specification includes the following drawings, the contents of which are respectively:
FIG. 1 is a schematic view of the structure of a lubricant tank for a dry lubrication system according to the present invention;
FIG. 2 is an exploded schematic view of a lubricant tank for a dry lubrication system of the present invention;
marked in the figure as: 1. an oil drain screw plug; 2. an exhaust pipe joint; 3. an oil return pipe joint; 4. an oil inlet pipe joint; 5. an oil outlet pipe joint body; 6. an oil outlet pipe flange; 7. a bolt; 8. a flat gasket; 9. an oil tank body; 10. a seal ring; 11. a gasket; 12. a fuel tank cap; 13. a lubricating oil scale; 14. extending the neck; 15. and (5) a filter screen.
Detailed Description
The following detailed description of the embodiments of the invention, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate and thorough understanding of the concepts and aspects of the invention, and to aid in its practice, by those skilled in the art.
It should be noted that, in the following embodiments, the "first" and "second" do not represent an absolute distinction between structures and/or functions, and do not represent a sequential order of execution, but are merely for convenience of description.
As shown in fig. 1 to 2, the invention provides a lubricating oil tank for a dry lubrication system, which comprises a lubricating oil tank body 9 and an oil outlet pipe joint, wherein the oil outlet pipe joint is detachably connected with the lubricating oil tank body 9, and a filter screen 15 for filtering lubricating oil is arranged on the oil outlet pipe joint.
Specifically, as shown in fig. 1 and 2, the oil outlet pipe joint is connected with the oil pump through an oil pipe so as to continuously convey the oil in the oil tank to the oil pump, and the oil pump is driven by a crankshaft of the aviation piston engine to operate. The lubricating oil tank body 9 is of a hollow structure in the interior, the lubricating oil tank body 9 is cylindrical, the inner cavity of the lubricating oil tank body 9 is used for storing lubricating oil, and the inner cavity of the lubricating oil tank is a circular cavity arranged at the center of the inner part of the lubricating oil tank. The axis of the oil outlet pipe joint is perpendicular to the axis of the oil tank body 9, and the oil outlet pipe joint extends towards the outer side of the oil tank body 9, so that the oil outlet pipe joint is convenient to connect with an oil pipe.
Preferably, the oil outlet pipe joint is connected with the oil tank body 9 through the bolt 7, and the oil outlet pipe joint is connected with the oil tank body 9 at least through one bolt 7, so that the oil outlet pipe joint is convenient to assemble and disassemble, high in efficiency and convenient to follow-up maintenance. As shown in fig. 1 and 2, the oil outlet pipe joint comprises an oil outlet pipe joint body 5 and an oil outlet pipe flange 6 arranged on the oil outlet pipe joint body 5, the oil outlet pipe joint body 5 is a circular pipe with two open ends and hollow inside, the axis of the oil outlet pipe joint body 5 is perpendicular to the axis of the lubricating oil tank body 9, the diameter of the oil outlet pipe joint body 5 is smaller than that of the lubricating oil tank body 9, one end of the oil outlet pipe joint body 5 is fixedly connected with a filter screen 15, and the other end of the oil outlet pipe joint body 5 is connected with a lubricating oil pump through an oil pipe. The oil outlet pipe flange 6 is fixedly connected with the oil outlet pipe joint body 5 at a position between two ends of the oil outlet pipe joint body 5, the oil outlet pipe flange 6 is provided with a through hole for a bolt 7 to pass through, and the oil tank body 9 is provided with a threaded hole for the bolt 7 to be screwed in. The oil tank body 9 has the mounting hole that gives way the oil pipe joint body 5 male, and this mounting hole is the through-hole that runs through along the radial of oil tank body 9 on the lateral wall of oil tank body 9 and sets up, and the outside diameter of oil pipe joint body 5 equals with the diameter size of this mounting hole, and in the oil pipe joint body 5 inserted the mounting hole, filter screen 15 is located the interior cavity of oil tank body 9.
As shown in fig. 1 and 2, as a preferable mode, a sealing ring 10 is arranged between the oil outlet pipe joint and the lubricating oil tank body 9, the sealing ring 10 plays a role in sealing, lubricating oil leakage is avoided between the oil outlet pipe joint and the lubricating oil tank body 9, and sealing performance is improved. The sealing ring 10 is an O-shaped ring, the sealing ring 10 is sleeved on the oil outlet pipe joint body 5, and the sealing ring 10 is clamped between the oil outlet pipe flange 6 and the lubricating oil tank body 9.
As shown in fig. 1 and 2, the filter screen 15 has a rough filtering function, and the filter screen 15 can filter the lubricating oil flowing out of the lubricating oil tank body 9 so as to filter impurities in the lubricating oil. The filter screen 15 is integrated on the oil outlet pipe joint, so that the structure is compact, the arrangement is convenient, and compared with the traditional wet oil pan, the device can save parts such as a filter collector and the like, and is convenient to repair and maintain. Preferably, the filter screen 15 is of a cylindrical structure with a hollow interior, the filter screen 15 and the oil outlet pipe joint are coaxially arranged, the filter screen 15 has a first end and a second end, and the first end of the filter screen 15 is connected with the oil outlet pipe joint.
As shown in fig. 1 and 2, the diameter of the filter screen 15 is the same as the diameter of the oil outlet pipe joint body 5, the first end is one end of the filter screen 15 in the axial direction, the second end is the other end of the filter screen 15 in the axial direction, the first end of the filter screen 15 is fixedly connected with the end of the oil outlet pipe joint body 5, and the filter screen 15 and the oil outlet pipe joint body 5 are coaxially arranged. The filter screen 15 has a plurality of filter holes for allowing the oil to pass through, wherein the filter holes are through holes which are formed in the annular side wall of the filter screen 15 and penetrate through the filter screen 15 in the radial direction of the filter screen 15 (namely, the filter holes extend from the outer circular surface of the filter screen 15 to the inner circular surface of the filter screen 15 in the radial direction of the filter screen 15), the filter holes are formed in the annular side wall of the filter screen 15, and all the filter holes are uniformly distributed in the axial direction and the circumferential direction of the filter screen 15. The filtering Kong Mibu is arranged on the annular side wall of the filter screen 15, the filtering holes enable the inner cavity of the filter screen 15 to be in a communication state with the inner cavity of the lubricating oil tank body 9, and then lubricating oil in the lubricating oil tank body 9 can flow into the oil outlet pipe joint after being filtered by the filter screen 15. The second end of filter screen 15 is sealed, and the first end of filter screen 15 is the open end, and the second end of filter screen 15 is the blind end, and the second end does not set up the filtration pore, and the lubricating oil in the lubricating oil tank body 9 can not get into in the filter screen 15 through the second end of filter screen 15, and the lubricating oil in the lubricating oil tank body 9 can only get into filter screen 15 through the filtration pore, and the filter effect is good, and the later maintenance is dismantled and is washd conveniently.
As shown in fig. 1 to 2, the oil tank for a dry lubrication system according to the present invention further includes an oil inlet pipe joint 4 provided on the oil tank body 9 for allowing oil from a cylinder block of an aviation piston engine to flow into the oil tank body 9 in a direction tangential to an inner wall surface of the oil tank body 9, and an angle is formed between an axial direction of the oil inlet pipe joint 4 and an axial direction of the oil tank body 9 and is an obtuse angle. One end of the oil inlet pipe joint 4 is fixedly connected with the lubricating oil tank body 9, the other end of the oil inlet pipe joint 4 is positioned at the outer side of the lubricating oil tank body 9, the end of the oil inlet pipe joint 4 is connected with a cylinder body of an aviation piston engine through an oil pipe, the oil inlet pipe joint 4 is obliquely arranged relative to the lubricating oil tank body 9, the oil inlet pipe joint 4 and the lubricating oil tank body 9 form a certain inclined angle, lubricating oil from the cylinder body flows into the lubricating oil tank body 9 in a direction tangential to the inner wall surface (the inner wall surface is a cylindrical surface positioned inside the lubricating oil tank body 9, and the axis of the inner wall surface is the axis of the lubricating oil tank body 9) of the lubricating oil, oil-gas separation is realized through centrifugal movement of the lubricating oil, and meanwhile, bubbles generated by directly and vertically impacting the lubricating oil to flow into the lubricating oil tank body 9 are avoided, and lubricating effects are ensured.
As shown in fig. 1 to 2, the oil inlet pipe joint 4 and the oil outlet pipe joint are provided at opposite ends of the lubricating oil tank body 9. The oil tank body 9 has a first end portion which is one end in the axial direction of the oil tank body 9 (also the upper end portion of the oil tank body 9), and a second end portion which is the other end in the axial direction of the oil tank body 9 (also the lower end portion of the oil tank body 9), and the oil inlet pipe joint 4 is fixedly connected to the end face of the first end portion of the oil tank body 9 (the end face of the first end portion is a plane perpendicular to the axis of the oil tank body 9), and an included angle is provided between the oil inlet pipe joint 4 and the end face of the first end portion of the oil tank body 9, and the included angle is an acute angle, and when the oil tank body is in a vertical state, the oil inlet pipe joint 4 extends obliquely above the end face of the first end portion of the oil tank body 9. The position of the oil inlet pipe joint 4 on the end face of the first end part of the lubricating oil tank body 9 is located at the outer edge of the end face, the position of the oil inlet pipe joint 4 is far away from the axis of the lubricating oil tank body 9, and the axis of the oil inlet pipe joint 4 is tangential to the inner wall surface of the lubricating oil tank body 9, so that lubricating oil from a cylinder body can flow into the lubricating oil tank body 9 according to a set direction.
As shown in fig. 1 to 2, the lubricating oil tank for a dry lubrication system of the present invention further includes an oil drain plug 1 and an oil return pipe joint 3 which are disposed on the lubricating oil tank body 9, the oil drain plug 1 and the oil return pipe joint are disposed at the same end of the lubricating oil tank body 9, and the oil return pipe joint 3 and the oil inlet pipe joint 4 are disposed at the same end of the lubricating oil tank body 9. The oil drain plug screw 1 is arranged on the second end part of the oil tank body 9, the oil drain plug screw 1 is in threaded connection with the oil tank body 9, a threaded hole for installing the oil drain plug screw 1 is formed in the center of the second end part of the oil tank body 9, the oil drain plug screw 1 and the oil tank body 9 are coaxially arranged, the oil drain plug screw 1 is positioned in the center of the bottom of the oil tank body 9, the system is convenient to replace oil, the waste oil is replaced in time, and the normal and stable operation of an engine is ensured. The oil return pipe joint 3 is arranged on the first end part of the oil tank body 9, the axis of the oil return pipe joint 3 is parallel to the axis of the oil tank body 9, the oil return pipe joint 3 is fixedly connected with the end face of the first end part of the oil tank body 9, the oil return pipe joint 3 extends towards the upper part of the oil tank body 9 and is convenient to connect with an oil pipe, and the oil return pipe joint 3 is used for enabling oil from other parts except a cylinder body to flow into the oil tank body 9.
As shown in fig. 1 to 2, the oil tank for a dry lubrication system of the present invention further includes an elongated neck pipe 14 provided on the oil tank body 9, an oil tank cap 12 for closing the elongated neck pipe 14, an oil scale 13 for detecting an amount of oil in the oil tank body 9, and an exhaust pipe joint 2 provided on the elongated neck pipe 14. The extension neck 14 is fixedly connected with the end face of the first end part of the lubricating oil tank body 9, the extension neck 14 extends towards the upper side of the lubricating oil tank body 9, the extension neck 14 is a round tube with an upper end opening and hollow inside, the diameter of the extension neck 14 is smaller than that of the lubricating oil tank body 9, the extension neck 14 and the lubricating oil tank body 9 are coaxially arranged, the lubricating oil tank cover 12 is connected with the extension neck 14 and is used for closing the upper end opening of the extension neck 14, the lubricating oil tank cover 12 is detachable, and the lubricating oil scale 13 is vertically downwards inserted into the lubricating oil tank body 9 through the upper end opening of the extension neck 14. The oil return pipe joint 3 and the oil inlet pipe joint 4 are positioned on the outer side of the extension neck pipe 14, and the exhaust pipe joint 2 is used for discharging exhaust gas from a crankcase of the aviation piston engine in an oil tank into the atmosphere, so that the engine is ensured to work stably and smoothly, and the deterioration and leakage of the lubricating oil are avoided. The exhaust pipe joint 2 enables the inner cavity of the lubricating oil tank body 9 to be in a communication state with the external environment, the axis of the exhaust pipe joint 2 is perpendicular to the axis of the extension neck pipe 14, the exhaust pipe joint 2 extends towards the outer side of the extension neck pipe 14, and the exhaust pipe joint 2 is located above the first end part of the lubricating oil tank body 9, so that lubricating oil leakage is avoided.
The invention is described above by way of example with reference to the accompanying drawings. It will be clear that the invention is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present invention; or the invention is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the invention.
Claims (1)
1. The dry lubricating system oil tank comprises an oil tank body and an oil outlet pipe joint, and is characterized in that: the oil outlet pipe joint is detachably connected with the lubricating oil tank body, and a filter screen for filtering lubricating oil is arranged on the oil outlet pipe joint;
the oil outlet pipe joint is connected with the oil pump through an oil pipe so as to continuously convey the oil in the oil tank to the oil pump, and the oil pump is driven by a crankshaft of the aviation piston engine to operate; the oil tank body is of a hollow structure and is cylindrical, the inner cavity of the oil tank body is used for storing oil, and the inner cavity of the oil tank is a circular cavity arranged at the center of the inner part of the oil tank; the axis of the oil outlet pipe joint is vertical to the axis of the oil tank body, and the oil outlet pipe joint extends towards the outer side of the oil tank body so as to be convenient to connect with an oil pipe;
the oil outlet pipe joint is connected with the oil tank body through a bolt, the oil outlet pipe joint is connected with the oil tank body through at least one bolt, the oil outlet pipe joint comprises an oil outlet pipe joint body and an oil outlet pipe flange arranged on the oil outlet pipe joint body, the oil outlet pipe joint body is a round pipe with two open ends and hollow inside, the axis of the oil outlet pipe joint body is perpendicular to the axis of the oil tank body, the diameter of the oil outlet pipe joint body is smaller than that of the oil tank body, one end of the oil outlet pipe joint body is fixedly connected with the filter screen, and the other end of the oil outlet pipe joint body is connected with the oil pump through an oil pipe; the oil outlet pipe flange is fixedly connected with the oil outlet pipe joint body at a position between two ends of the oil outlet pipe joint body, the oil outlet pipe flange is provided with a through hole for a bolt to pass through, and the oil tank body is provided with a threaded hole for the bolt to be screwed in;
the oil tank body is provided with a mounting hole for allowing the oil outlet pipe joint body to be inserted, the mounting hole is a through hole which is formed in the side wall of the oil tank body in a penetrating manner along the radial direction of the oil tank body, the outer diameter of the oil outlet pipe joint body is equal to the diameter of the mounting hole, the oil outlet pipe joint body is inserted into the mounting hole, and the filter screen is positioned in the inner cavity of the oil tank body;
a sealing ring is arranged between the oil outlet pipe joint and the lubricating oil tank body, and plays a role in sealing, so that lubricating oil leakage between the oil outlet pipe joint and the lubricating oil tank body is avoided, and the sealing performance is improved; the sealing ring is an O-shaped ring, is sleeved on the oil outlet pipe joint body, and is clamped between the oil outlet pipe flange and the lubricating oil tank body;
the filter screen has a rough filtering function, the filter screen filters the lubricating oil flowing out of the lubricating oil tank body, the filter screen is of a cylindrical structure with a hollow inside, the filter screen and the oil outlet pipe joint are coaxially arranged, the filter screen is provided with a first end part and a second end part, and the first end part of the filter screen is connected with the oil outlet pipe joint;
the diameter of the filter screen is the same as the diameter of the oil outlet pipe joint body, the first end is one end of the filter screen in the axial direction, the second end is the other end of the filter screen in the axial direction, the first end of the filter screen is fixedly connected with the end of the oil outlet pipe joint body, and the filter screen and the oil outlet pipe joint body are coaxially arranged; the filter screen is provided with filter holes for allowing the lubricating oil to pass through, the filter holes are through holes which are formed in the annular side wall of the filter screen in a penetrating manner along the radial direction of the filter screen, a plurality of filter holes are formed in the annular side wall of the filter screen, and all the filter holes are uniformly distributed along the axial direction and the circumferential direction of the filter screen; the filtering Kong Mibu is arranged on the annular side wall of the filter screen, the inner cavity of the filter screen is communicated with the inner cavity of the lubricating oil tank body through the filtering holes, and then lubricating oil in the lubricating oil tank body can flow into the oil outlet pipe joint after being filtered by the filter screen;
the second end part of the filter screen is closed, the first end part of the filter screen is an open end, the second end part of the filter screen is a closed end, the second end part is not provided with a filter hole, and the lubricating oil in the lubricating oil tank body cannot enter the filter screen through the second end part of the filter screen;
the oil tank for the dry lubrication system further comprises an oil inlet pipe joint which is arranged on the oil tank body and used for enabling oil from a cylinder body of the aviation piston engine to flow into the oil tank body along a direction tangential to the inner wall surface of the oil tank body, wherein an included angle is formed between the axial direction of the oil inlet pipe joint and the axial direction of the oil tank body, and the included angle is an obtuse angle; one end of the oil inlet pipe joint is fixedly connected with the lubricating oil tank body, the other end of the oil inlet pipe joint is positioned at the outer side of the lubricating oil tank body, the end of the oil inlet pipe joint is connected with a cylinder body of the aviation piston engine through an oil pipe, the oil inlet pipe joint is obliquely arranged relative to the lubricating oil tank body, the oil inlet pipe joint and the lubricating oil tank body form a certain inclination angle, lubricating oil from the cylinder body flows into the lubricating oil tank body in a direction tangential to the inner wall surface of the lubricating oil tank body, oil-gas separation is realized through centrifugal movement of the lubricating oil, and meanwhile, bubbles generated when the lubricating oil directly vertically impacts the lubricating oil flowing into the lubricating oil tank body are avoided, and the lubricating effect is ensured;
the oil inlet pipe joint and the oil outlet pipe joint are arranged at two opposite ends of the lubricating oil tank body; the oil inlet pipe joint is fixedly connected with the end face of the first end part of the oil tank body, an included angle is formed between the oil inlet pipe joint and the end face of the first end part of the oil tank body, the included angle is an acute angle, and when the oil tank body is in a vertical state, the oil inlet pipe joint extends obliquely towards the upper side of the end face of the first end part of the oil tank body; the oil inlet pipe joint is positioned at the outer edge of the end face of the first end part of the lubricating oil tank body, the oil inlet pipe joint is positioned far away from the axis of the lubricating oil tank body, and the axis of the oil inlet pipe joint is tangential to the inner wall surface of the lubricating oil tank body, so that lubricating oil from the cylinder body flows into the lubricating oil tank body according to a set direction;
the oil tank for the dry lubrication system further comprises an oil drain screw plug and an oil return pipe joint which are arranged on the oil tank body, wherein the oil drain screw plug and the oil outlet pipe joint are arranged at the same end of the oil tank body, and the oil return pipe joint and the oil inlet pipe joint are arranged at the same end of the oil tank body; the oil drain screw plug is arranged on the second end part of the oil tank body and is in threaded connection with the oil tank body, a threaded hole for installing the oil drain screw plug is formed in the center of the second end part of the oil tank body, the oil drain screw plug is coaxially arranged with the oil tank body, and the oil drain screw plug is positioned in the center of the bottom of the oil tank body; the oil return pipe joint is arranged on the first end part of the oil tank body, the axis of the oil return pipe joint is parallel to the axis of the oil tank body, the oil return pipe joint is fixedly connected with the end surface of the first end part of the oil tank body, extends towards the upper part of the oil tank body and is convenient to connect with an oil pipe, and the oil return pipe joint is used for enabling oil from other parts except a cylinder body to flow into the oil tank body;
the lubricating oil tank for the dry lubricating system further comprises an elongated neck pipe arranged on the lubricating oil tank body, a lubricating oil tank cover for closing the elongated neck pipe, a lubricating oil scale for detecting the lubricating oil amount in the lubricating oil tank body and an exhaust pipe joint arranged on the elongated neck pipe; the oil tank comprises an oil tank body, an oil tank cover, an oil tank scale, an oil tank cover and an oil tank cover, wherein the oil tank body is provided with an oil tank opening, the oil tank cover is connected with the oil tank opening, the oil tank cover is detachable, and the oil tank scale is vertically downwards inserted into the oil tank body through the oil tank opening;
the oil return pipe joint and the oil inlet pipe joint are positioned at the outer side of the extension neck pipe, and the exhaust pipe joint is used for exhausting the exhaust gas from the crankcase of the aviation piston engine in the lubricating oil tank into the atmosphere; the exhaust pipe joint enables the inner cavity of the lubricating oil tank body to be in a communication state with the external environment, the axis of the exhaust pipe joint is perpendicular to the axis of the extension neck pipe, the exhaust pipe joint extends towards the outer side of the extension neck pipe, and the exhaust pipe joint is located above the first end portion of the lubricating oil tank body, so that lubricating oil leakage is avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457104.3A CN108757088B (en) | 2018-05-14 | 2018-05-14 | Lubricating oil tank for dry lubrication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457104.3A CN108757088B (en) | 2018-05-14 | 2018-05-14 | Lubricating oil tank for dry lubrication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108757088A CN108757088A (en) | 2018-11-06 |
| CN108757088B true CN108757088B (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810457104.3A Active CN108757088B (en) | 2018-05-14 | 2018-05-14 | Lubricating oil tank for dry lubrication system |
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| CN111058917B (en) * | 2019-12-19 | 2022-08-16 | 芜湖航瑞航空动力产业技术研究院有限公司 | Engine ventilation oil return structure |
| CN114857480A (en) * | 2021-02-04 | 2022-08-05 | 中国航发商用航空发动机有限责任公司 | Lubricating oil adding tool for aero-engine |
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| CN203050893U (en) * | 2012-12-27 | 2013-07-10 | 吉林航空维修有限责任公司 | Diesel oil supply device of aeroengine |
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| CN108757088A (en) | 2018-11-06 |
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