CN111878389A - Internal combustion type swinging scraper pump - Google Patents
Internal combustion type swinging scraper pump Download PDFInfo
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- CN111878389A CN111878389A CN202010934585.XA CN202010934585A CN111878389A CN 111878389 A CN111878389 A CN 111878389A CN 202010934585 A CN202010934585 A CN 202010934585A CN 111878389 A CN111878389 A CN 111878389A
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- flywheel
- pump
- internal combustion
- fluid
- scraper
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/40—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member
- F04C2/46—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member with vanes hinged to the outer member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/06—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
Abstract
The invention belongs to the technical field of internal combustion engines and heat energy conversion, and relates to an internal combustion type swing scraper pump, which utilizes a swing scraper to replace a reciprocating blade of a traditional blade pump and realizes high-pressure output through pressure self-sealing; meanwhile, the flywheel of the internal combustion engine is used as a rotor, a main pumping fluid structure is integrated into the flywheel to reduce the volume of the system, and the internal combustion pump which is free of a distributing valve, high in pressure, compact in structure, high in speed and efficient is formed.
Description
The technical field is as follows:
the invention belongs to the technical field of internal combustion engines and heat energy conversion, relates to a power device for converting fuel combustion heat energy into fluid pressure energy, and particularly relates to an internal combustion type swinging scraper pump.
Background art:
the device for converting heat energy into fluid pressure energy has a plurality of application occasions, the most widely applied and mature technology at present is that the internal combustion engine drives the fluid pump system, but the device has the defects of large volume, difficult optimal matching between the internal combustion engine and the pump and the like; the hydraulic free piston engine and the hydraulic constraint piston engine overcome the defects of a fluid pump system driven by an internal combustion engine, but have the defects of unreliable work, large vibration impact and the like, and have no industrialized popularization and application so far.
The existing vane pump or rotor pump has a plurality of patents, and has relatively compact structure and acceptable efficiency under medium speed and pressure because of no need of a distributing valve, so the vane pump or rotor pump has wide application. However, in the conventional single-acting or double-acting vane pump, since the vane is required to reciprocate in the mounting groove of the pump, the vane body in the groove is required to have enough length for guiding all the time, the structure is loose, the friction force between the vane and the groove wall is increased along with the rise of pressure, the reciprocating movement of the vane is delayed, the internal leakage is increased, and the limit working pressure is reduced, for example, the conventional roots pump, the sealless rotor industrial pump disclosed by ZL200420052193.7 comprises a sealless sliding vane pump, a sealless flexible vane pump, a sealless rotary piston pump, a sealless roots pump and the like, no sealing device is arranged at a gap formed between a driven shaft and a driving shaft of the end face of a rotor cavity of the pump and a pump body, fluid leaking from the gap enters a bleeding cavity and then flows back to a low-pressure cavity or a fluid inlet pipeline, the inner side of the bleeding cavity is adjacent to the rotor cavity, and the outer side of the bleeding; the outer side of the effusion cavity adopts a conventional sealing element; the driven shaft and the driving shaft of the rotor cavity are made into an extending beam or a simply supported beam structure; the return port is directly communicated with the low-pressure cavity through the inside of the pump body or is communicated with the fluid inlet pipeline through an external pipeline of the pump body. The double-cam rotor vane pump disclosed in ZL97210597.2 is characterized in that a pump cover and a transmission shaft in a pump body are sequentially provided with a pressure side plate, two cam rotors which form an angle of 90 degrees with each other and rotate along with the shaft in an inner hole of a stator, a partition plate and an oil distribution disc, and two groups of vanes are respectively arranged in a straight groove of the stator. ZL00245048.8 discloses a cam rotor vane pump, which comprises a pump case and a cam rotor sleeved in the pump case, wherein the two ends of the pump case are respectively provided with a left end cover and a right end cover, the rotating shaft of the cam rotor is supported by the left end cover and the right end cover, the pump case is provided with a fluid inlet and a fluid outlet which are communicated with the inner cavity of the pump case, the inner wall of the pump case is provided with a vane sliding groove, a vane is arranged in the vane sliding groove, the front end of the vane extends out of the vane sliding groove and is contacted with the surface of the cam rotor, a spring which applies elastic force pointing to the front end of the vane to the vane is arranged in the vane sliding groove. The scraper pump for the constant-current dust sampler disclosed by ZL201610893753.4 comprises a pump body, wherein a pump body cylinder sleeve is arranged in a pump body cavity, a cavity of the pump body cylinder sleeve is formed into a pump cavity, a left pump body cover is fixed at the left end of the pump body, a right pump body cover is fixed at the right end of the pump body, a pump body air inlet joint is arranged at the upper part of the pump body, a pump body air outlet joint is arranged at the lower part of the pump body, and the pump body air inlet joint and the pump body air outlet joint are; the motor is fixed on the motor base, the motor base is fixed with the left pump body cover, and a motor shaft of the motor extends into the pump cavity; and a rotor which is arranged in the pump chamber and fixed with the motor shaft, wherein a group of scraper chutes are arranged on the rotor and along the length direction of the rotor at equal intervals around the circumference direction of the rotor, and scrapers are respectively inserted in a sliding manner at positions corresponding to the group of scraper chutes. The upper end surface and the lower end surface of a single-blade impeller disclosed by ZL201920947626.1 are end convex arc surfaces attached to an inner cavity arc surface of a pump body of a rotor pump, transition convex arc surfaces are respectively formed on the end convex arc surfaces and two sides of the double-blade impeller, a pair of convex arc surfaces are arranged on the end convex arc surfaces in a face-to-face mode, concave arc surfaces attached to and matched with the transition convex arc surfaces are formed between the pair of convex arc surfaces and the transition convex arc surfaces, and smooth transition is achieved between the intersected convex arc surfaces and the concave arc surfaces. The upper end surface and the lower end surface of the double-blade impeller disclosed by ZL201920946772.2 are end convex arc surfaces attached to an inner cavity arc surface of a pump body of a rotor pump, transition convex arc surfaces are respectively formed on the end convex arc surfaces and two sides of the double-blade impeller, a section of middle convex arc surface is arranged in the middle of the left side and the right side of the double-blade impeller, concave arc surfaces attached to and matched with the transition convex arc surfaces are formed between the middle convex arc surfaces and the transition convex arc surfaces, and the convex arc surfaces and the concave arc surfaces which are intersected are in smooth transition. Although the volume utilization rate of the vane pump or the rotor pump is high, the vane pump or the rotor pump does not have reliable self-sealing performance, is difficult to build higher pressure, and has a complex structure and high processing and assembling difficulty. Therefore, an internal combustion pump with a novel structure needs to be designed, a swinging scraper plate is used for replacing a reciprocating blade, and pressure self-sealing is realized at the same time; the flywheel of the internal combustion engine is used as a rotor, and the main fluid pumping structure is integrated into the flywheel to reduce the volume of the system, so that the internal combustion pump which is free of a distributing valve, high in pressure, compact in structure, high in speed and high in efficiency is formed.
The invention content is as follows:
the invention aims to overcome the defects in the prior art, and designs and provides an internal combustion type swinging scraper pump for converting fuel combustion heat energy into fluid pressure energy, wherein a swinging scraper is used for replacing reciprocating moving blades of a traditional blade pump, and high-pressure output is realized through pressure self-sealing; meanwhile, a flywheel of the internal combustion engine is used as a rotor, and a main fluid pumping structure is integrated into the flywheel to reduce the volume of the system, so that the internal combustion pump which is free of a distributing valve, high in pressure, compact in structure, high in speed and high in efficiency is formed.
In order to achieve the purpose, the main body structure of the internal combustion type swinging scraper pump comprises an internal combustion engine main body, a flywheel shell, a stator flow distribution shaft, a fluid inlet pipeline, a fluid outlet pipeline, a compression spring, a swinging scraper, a pin shaft, a fastening bolt, a transmission key, a crankshaft and a sealing ring; the flywheel is arranged in a flywheel shell, an inner cavity is arranged on the flywheel, a concave hole is formed in the center of the outer part of the cavity wall close to one side of the internal combustion engine main body, a key groove is formed in the key groove, a transmission key is arranged in the key groove, the crankshaft is arranged in the concave hole, the flywheel is connected with the rear end of the crankshaft through the transmission key and rotates together with the crankshaft, a round hole coaxial with the flywheel is formed in the cavity wall of one side of the flywheel away from the internal combustion engine main body, a sealing ring is embedded in a groove in the inner wall of the; the stator flow distribution shaft is arranged in the inner cavity part of the flywheel and is coaxial with the flywheel, a flange structure arranged on the periphery of the middle part of the stator flow distribution shaft is fixedly connected to one side of a flywheel shell through a fastening bolt, and the other side of the flywheel shell is fixed on the internal combustion engine main body; the stator flow distribution shaft is internally divided into two cavities of a fluid inlet pipeline and a fluid outlet pipeline through a partition plate, openings communicated with a fluid inlet pump cavity and a fluid outlet pump cavity on two sides of a swing scraper are respectively arranged on the fluid inlet pipeline and the fluid outlet pipeline, the end part of the swing scraper is hinged on the partition plate between the fluid inlet pipeline and the fluid outlet pipeline through a pin shaft, a compression spring is arranged between the swing scraper and the wall of the fluid outlet pipeline, and the compression spring presses the swing scraper against the wall of an inner cavity of a flywheel all the time.
The fluid outlet pump cavity is a space surrounded by the swinging scraper, the outer wall of the fluid outlet pipeline and the inner cavity wall of the flywheel, and the fluid inlet pump cavity is a space surrounded by the swinging scraper, the outer wall of the fluid inlet pipeline and the inner cavity wall of the flywheel.
The main body of the internal combustion engine is the same as that of the traditional piston type internal combustion engine, but the structures of a flywheel shell, a flywheel and the like of the internal combustion engine are locally changed, so that the fluid pumping structural member is convenient to fix and assemble.
The outer peripheral wall of the inner cavity of the flywheel is in an inner cam structure and is a smooth combination of various types or profiles such as an ellipse and a semi-ellipse, the shape and the size of a pump cavity are determined by the distance between each point on the profile and the rotation axis of the flywheel, and the discharge capacity of the internal combustion type swinging scraper pump is determined by the outer diameters of the flywheel and the inner section of the stator port shaft.
The periphery of the stator flow distribution shaft is cylindrical, and the periphery of the stator flow distribution shaft is in small clearance fit with the minimum radius part of the inner cavity of the flywheel, so that a better sealing effect is ensured, and internal leakage is reduced; the shape of the end wall surface is matched with the shape of the cavity wall of one side of the flywheel close to the internal combustion engine main body, and the end wall surface and the cavity wall are in micro clearance fit, so that friction is prevented from being generated during mutual rotation, and meanwhile, a sealing effect is achieved.
The compression spring is one of various forms such as a spiral spring, a torsion spring and the like.
The periphery of one end of the swinging scraper is locally cylindrical and is in small clearance fit with a partition plate between the fluid inlet pipeline and the fluid outlet pipeline, and when the swinging scraper swings around a pin shaft, the leakage between the swinging scraper and the partition plate is reduced as much as possible; the other end is a pointed top, the inclination direction is opposite to the rotation direction of the flywheel, and the other end is perfectly attached to the wall of the inner cavity of the flywheel so as to ensure the sealing effect; the length of the swing scraper is greater than the difference between the maximum radius and the minimum radius of the molded line of the inner cavity wall of the flywheel, and the flywheel can slide relative to the flywheel all the time when rotating and cannot be self-locked.
The radius of the flywheel inner cavity wall molded line indicates the distance from a point on the molded line to a rotation center.
When the internal combustion type swinging scraper pump works, the internal combustion type swinging scraper pump converts the combustion heat energy of fuel into fluid pressure energy and outputs the fluid pressure energy, and the specific process comprises the following steps: the main body of the internal combustion engine converts heat energy generated by fuel combustion into mechanical energy to realize crankshaft rotation, then drives the flywheel to synchronously rotate through the transmission key, the tip of the swinging scraper blade is attached to the inner cavity wall of the flywheel and generates scraping under the action of the compression spring, the compression spring and the cavity of the discharge fluid pump are positioned at the same side, the high-pressure fluid cavity becomes small along with the rotation of the flywheel, the high-pressure fluid in the cavity of the discharge fluid pump is output from the discharge fluid pipeline, the swinging scraper blade is further pressed to the inner cavity wall of the flywheel, and the higher the pressure is, the better the sealing effect is between the swinging scraper blade and the inner cavity wall of the flywheel; because the radius of the inner cavity wall of the flywheel changes, when the flywheel rotates, the swinging scraper blade swings around the pin shaft, the other side of the swinging scraper blade and the inner cavity wall of the flywheel form a fluid inlet pump cavity, as the rotating volume of the flywheel becomes larger, low-pressure fluid in the fluid inlet pipeline enters the fluid inlet pump cavity, the flywheel continuously rotates, the output of fluid pressure energy is realized, and the conversion of fuel combustion heat energy to the fluid pressure energy is completed.
Compared with the prior art, the invention has the advantages of high efficiency conversion of fuel combustion heat energy into fluid pressure energy, simple and compact structure, stable work, good technical inheritance, self-sealing property, high output pressure of more than 70MPa, greatly reduced cost compared with the current internal combustion engine driving plunger pump system, and better popularization and application values.
Description of the drawings:
fig. 1 is a schematic diagram of the cross-sectional structure of the internal combustion type swing scraper pump of the present invention.
Fig. 2 is a cut-away right side view of the internal combustion oscillating flighted pump of the present invention.
Fig. 3 is a cut-away top view of the internal combustion oscillating flighted pump of the present invention.
The specific implementation mode is as follows:
the following is a further description by way of example and with reference to the accompanying drawings.
Example (b):
the main structure of the internal combustion type swinging scraper pump in the embodiment comprises an internal combustion engine main body 1, a flywheel 2, a flywheel shell 3, a stator flow distribution shaft 4, a fluid inlet pipeline 5, a fluid outlet pipeline 6, a compression spring 7, a swinging scraper 8, a pin shaft 9, a fastening bolt 10, a transmission key 11, a crankshaft 12 and a sealing ring 13; the flywheel 2 is arranged in the flywheel shell 3, an inner cavity is arranged on the flywheel 2, a concave hole is formed in the center of the outer portion of the cavity wall on one side close to the internal combustion engine main body 1, a key groove is formed in the center of the cavity wall, a transmission key 11 is arranged in the key groove, a crankshaft 12 is arranged in the concave hole, the flywheel 2 is connected with the rear end of the crankshaft 12 through the transmission key 11 and rotates together with the crankshaft 12, a circular hole coaxial with the flywheel 2 is formed in the cavity wall on one side, away from the internal combustion engine main body 1, of the flywheel 2, a sealing ring 13 is embedded in a groove formed in the; the stator flow distribution shaft 4 is arranged in the inner cavity part of the flywheel 2 and is coaxial with the flywheel 2, a flange structure arranged on the periphery of the middle part of the stator flow distribution shaft 4 is fixedly connected to one side of the flywheel shell 3 through a fastening bolt 10, and the other side of the flywheel shell 3 is fixed on the internal combustion engine main body 1; the stator flow distribution shaft 4 is internally divided into two cavities of a fluid inlet pipeline 5 and a fluid outlet pipeline 6 through a partition plate, openings communicated with a fluid inlet pump cavity and a fluid outlet pump cavity on two sides of a swinging scraper 8 are respectively arranged on the fluid inlet pipeline 5 and the fluid outlet pipeline 6, the end part of the swinging scraper 8 is hinged on the partition plate between the fluid inlet pipeline 5 and the fluid outlet pipeline 6 through a pin shaft 9, a compression spring 7 is arranged between the swinging scraper 8 and the wall of the fluid outlet pipeline 6, and the compression spring 7 presses the swinging scraper 8 against the inner cavity wall of the flywheel 2 all the time.
In this embodiment, the discharge fluid pump cavity is a space surrounded by the swing scraper 8, the outer wall of the discharge fluid pipe 6 and the inner cavity wall of the flywheel 2, and the inlet fluid pump cavity is a space surrounded by the swing scraper 8, the outer wall of the inlet fluid pipe 5 and the inner cavity wall of the flywheel 2.
The internal combustion engine main body 1 has the same structure as that of a traditional piston type internal combustion engine, but the structures of a flywheel shell 3, a flywheel 2 and the like of the internal combustion engine are locally changed, so that a fluid pumping structural member is convenient to fix and assemble.
In this embodiment, the shape of the outer peripheral wall of the inner cavity of the flywheel 2 is an inner cam structure and is a combination of various types or profiles such as a smooth ellipse and a semi-ellipse, the shape and the size of the pump cavity are determined by the distance between each point on the profile and the rotation axis of the flywheel 2, and the discharge capacity of the internal combustion type oscillating scraper pump is determined by the outer diameters of the flywheel 2 and the built-in section of the stator port shaft 4.
The periphery of the stator port shaft 4 is cylindrical, and the periphery is in small clearance fit with the minimum radius part of the inner cavity of the flywheel 2, so that a better sealing effect is ensured, and internal leakage is reduced; the shape of the end wall surface is adapted to the shape of the cavity wall of the flywheel 2 at one side close to the internal combustion engine main body 1, and the end wall surface and the cavity wall are in micro clearance fit, so that friction is prevented from generating during mutual rotation, and meanwhile, a sealing effect is achieved.
The hold-down spring 7 in this embodiment is in one of various forms such as a coil spring, a torsion spring, and the like.
In this embodiment, the periphery of one end of the swinging scraper 8 is partially cylindrical, and is in small clearance fit with a partition plate between the influent fluid pipeline 5 and the effluent fluid pipeline 6, so that when the swinging scraper swings around the pin shaft 9, the leakage between the swinging scraper 8 and the partition plate is reduced as much as possible; the other end is a pointed top, the inclination direction is opposite to the rotation direction of the flywheel 2, and the other end is perfectly attached to the inner cavity wall of the flywheel 2 so as to ensure the sealing effect; the length of the swinging scraper 8 is greater than the difference between the maximum radius and the minimum radius of the molded line of the inner cavity wall of the flywheel 2, and the flywheel 2 can slide relatively all the time and cannot be self-locked when rotating.
The radius of the cavity wall profile in the flywheel 2 described in this embodiment refers to the distance from a point on the profile to the center of rotation.
This embodiment internal combustion type swing scraper pump during operation, convert fuel burning heat energy output to fluid pressure energy, the concrete process is: the internal combustion engine main body 1 firstly converts heat energy generated by fuel combustion into mechanical energy, a crankshaft 12 is rotated, then a transmission key 11 drives a flywheel 2 to synchronously rotate (anticlockwise rotation in the attached drawing 1), a tip of a swinging scraper 8 is attached to the inner cavity wall of the flywheel 2 and generates scraping under the action of a compression spring 7, the compression spring 7 and an effluent pump cavity are positioned at the same side, a high-pressure fluid cavity becomes small along with the rotation of the flywheel 2, the high-pressure fluid in the effluent pump cavity is output from an effluent pipeline 6, the swinging scraper 8 is further pressed to the inner cavity wall of the flywheel 2, and the higher the pressure is, the better the sealing effect between the swinging scraper 8 and the inner cavity wall of the flywheel 2 is; because the radius of the inner cavity wall of the flywheel 1 changes, when the flywheel 2 rotates, the swinging scraper 8 swings around the pin shaft 9, the other side of the swinging scraper 8 and the inner cavity wall of the flywheel 2 form a fluid inlet pump cavity, as the rotating volume of the flywheel 2 becomes larger, low-pressure fluid in the fluid inlet pipeline 5 enters the fluid inlet pump cavity, the flywheel 2 continuously rotates, the output of fluid pressure energy is realized, and the conversion of fuel combustion heat energy to fluid pressure energy is completed.
Claims (7)
1. An internal combustion type swinging scraper pump is characterized in that the main body structure comprises an internal combustion engine main body, a flywheel shell, a stator flow distribution shaft, a fluid inlet pipeline, a fluid outlet pipeline, a compression spring, a swinging scraper, a pin shaft, a fastening bolt, a transmission key, a crankshaft and a sealing ring; the flywheel is arranged in a flywheel shell, an inner cavity is arranged on the flywheel, a concave hole is formed in the center of the outer part of the cavity wall close to one side of the internal combustion engine main body, a key groove is formed in the key groove, a transmission key is arranged in the key groove, the crankshaft is arranged in the concave hole, the flywheel is connected with the rear end of the crankshaft through the transmission key and rotates together with the crankshaft, a round hole coaxial with the flywheel is formed in the cavity wall of one side of the flywheel away from the internal combustion engine main body, a sealing ring is embedded in a groove in the inner wall of the; the stator flow distribution shaft is arranged in the inner cavity part of the flywheel and is coaxial with the flywheel, a flange structure arranged on the periphery of the middle part of the stator flow distribution shaft is fixedly connected to one side of a flywheel shell through a fastening bolt, and the other side of the flywheel shell is fixed on the internal combustion engine main body; the stator flow distribution shaft is internally divided into two cavities of a fluid inlet pipeline and a fluid outlet pipeline through a partition plate, openings communicated with a fluid inlet pump cavity and a fluid outlet pump cavity on two sides of a swing scraper are respectively arranged on the fluid inlet pipeline and the fluid outlet pipeline, the end part of the swing scraper is hinged on the partition plate between the fluid inlet pipeline and the fluid outlet pipeline through a pin shaft, a compression spring is arranged between the swing scraper and the wall of the fluid outlet pipeline, and the compression spring presses the swing scraper against the wall of an inner cavity of a flywheel all the time.
2. The internal combustion type oscillating scraper pump according to claim 1, characterized in that the discharge fluid pump cavity is a space surrounded by the oscillating scraper, the outer wall of the discharge fluid pipe and the inner cavity wall of the flywheel, and the intake fluid pump cavity is a space surrounded by the oscillating scraper, the outer wall of the intake fluid pipe and the inner cavity wall of the flywheel.
3. The internal combustion type oscillating scraper pump according to claim 1, characterized in that the shape of the outer peripheral wall of the inner cavity of the flywheel is an inner cam structure and is a smooth ellipse, a semi-ellipse or a combination of various molded lines, the shape and the size of the pump cavity are determined by the distance between each point on the molded line and the rotation axis of the flywheel, and the displacement of the internal combustion type oscillating scraper pump is determined by the outer diameters of the flywheel and the inner section of the stator port shaft.
4. The internal combustion type oscillating scraper pump according to claim 1, characterized in that the outer periphery of the stator port shaft is cylindrical, and the outer periphery is in close clearance fit with the minimum radius of the flywheel inner cavity, thereby ensuring the sealing effect and reducing the internal leakage; the shape of the end wall surface is matched with the shape of the cavity wall of one side of the flywheel close to the internal combustion engine main body, and the end wall surface and the cavity wall are in micro clearance fit, so that friction is prevented from being generated during mutual rotation, and meanwhile, a sealing effect is achieved.
5. The internal combustion oscillating flighted pump according to claim 1, wherein the compression spring is a helical or torsion spring.
6. The internal combustion type oscillating scraper pump according to claim 1, wherein the outer periphery of one end of the oscillating scraper is partially cylindrical and is in close clearance fit with a partition plate between the fluid inlet pipe and the fluid outlet pipe, so that leakage between the oscillating scraper and the partition plate is reduced when the oscillating scraper oscillates around the pin shaft; the other end is a pointed top, the inclination direction is opposite to the rotation direction of the flywheel, and the other end is perfectly attached to the wall of the inner cavity of the flywheel so as to ensure the sealing effect; the length of the swing scraper is greater than the difference between the maximum radius and the minimum radius of the molded line of the inner cavity wall of the flywheel, and the flywheel can slide relative to the flywheel all the time and cannot be self-locked when rotating; wherein the radius of the flywheel cavity wall profile indicates the distance from a point on the profile to the center of rotation.
7. The internal combustion type oscillating scraper pump according to claim 1, characterized in that when the internal combustion type oscillating scraper pump works, the internal combustion type oscillating scraper pump converts the combustion heat energy of the fuel into fluid pressure energy and outputs the fluid pressure energy by the specific process: the main body of the internal combustion engine converts heat energy generated by fuel combustion into mechanical energy to realize crankshaft rotation, then drives the flywheel to synchronously rotate through the transmission key, the tip of the swinging scraper blade is attached to the inner cavity wall of the flywheel and generates scraping under the action of the compression spring, the compression spring and the cavity of the discharge fluid pump are positioned at the same side, the high-pressure fluid cavity becomes small along with the rotation of the flywheel, the high-pressure fluid in the cavity of the discharge fluid pump is output from the discharge fluid pipeline, the swinging scraper blade is further pressed to the inner cavity wall of the flywheel, and the higher the pressure is, the better the sealing effect is between the swinging scraper blade and the inner cavity wall of the flywheel; because the radius of the inner cavity wall of the flywheel changes, when the flywheel rotates, the swinging scraper blade swings around the pin shaft, the other side of the swinging scraper blade and the inner cavity wall of the flywheel form a fluid inlet pump cavity, as the rotating volume of the flywheel becomes larger, low-pressure fluid in the fluid inlet pipeline enters the fluid inlet pump cavity, the flywheel continuously rotates, the output of fluid pressure energy is realized, and the conversion of fuel combustion heat energy to the fluid pressure energy is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010934585.XA CN111878389A (en) | 2020-09-08 | 2020-09-08 | Internal combustion type swinging scraper pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010934585.XA CN111878389A (en) | 2020-09-08 | 2020-09-08 | Internal combustion type swinging scraper pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111878389A true CN111878389A (en) | 2020-11-03 |
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| CN202010934585.XA Pending CN111878389A (en) | 2020-09-08 | 2020-09-08 | Internal combustion type swinging scraper pump |
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Citations (10)
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|---|---|---|---|---|
| US4563137A (en) * | 1983-02-17 | 1986-01-07 | Rineer Arthur E | Rotary hydraulic energy-conversion device with two dams engaging a rotatable ring |
| US4772185A (en) * | 1985-11-27 | 1988-09-20 | Barmag Ag | Rotary vane pump having a plurality of inlet and outlet slots in a rotating sleeve |
| CN1482362A (en) * | 2003-02-12 | 2004-03-17 | Rotary pump | |
| CN102733942A (en) * | 2012-07-09 | 2012-10-17 | 青岛大学 | Single-side crankshaft connecting rod hydraulic engine |
| CN103233891A (en) * | 2011-12-21 | 2013-08-07 | 株式会社富石 | Rotary cam ring fluid machine |
| CN103603813A (en) * | 2013-11-11 | 2014-02-26 | 南昌尊荣泵业有限公司 | Turbocharging borehole immersed pump |
| CN104100299A (en) * | 2013-04-12 | 2014-10-15 | 北京星旋世纪科技有限公司 | Rotating device, fluid motor, engine, compressor and pump using same |
| CN104612963A (en) * | 2014-12-15 | 2015-05-13 | 姚镇 | Rotating device suitable for high pressure scene and mechanical device using rotating device |
| CN204371658U (en) * | 2014-12-20 | 2015-06-03 | 重庆交联电缆有限公司 | A kind of stator bimorph transducer pump structure |
| CN105471172A (en) * | 2015-11-20 | 2016-04-06 | 西安交通大学 | High-speed dual-inclined-plate axial-plunger switch reluctance synchronization motor pump for airplane |
-
2020
- 2020-09-08 CN CN202010934585.XA patent/CN111878389A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4563137A (en) * | 1983-02-17 | 1986-01-07 | Rineer Arthur E | Rotary hydraulic energy-conversion device with two dams engaging a rotatable ring |
| US4772185A (en) * | 1985-11-27 | 1988-09-20 | Barmag Ag | Rotary vane pump having a plurality of inlet and outlet slots in a rotating sleeve |
| CN1482362A (en) * | 2003-02-12 | 2004-03-17 | Rotary pump | |
| CN103233891A (en) * | 2011-12-21 | 2013-08-07 | 株式会社富石 | Rotary cam ring fluid machine |
| CN102733942A (en) * | 2012-07-09 | 2012-10-17 | 青岛大学 | Single-side crankshaft connecting rod hydraulic engine |
| CN104100299A (en) * | 2013-04-12 | 2014-10-15 | 北京星旋世纪科技有限公司 | Rotating device, fluid motor, engine, compressor and pump using same |
| CN103603813A (en) * | 2013-11-11 | 2014-02-26 | 南昌尊荣泵业有限公司 | Turbocharging borehole immersed pump |
| CN104612963A (en) * | 2014-12-15 | 2015-05-13 | 姚镇 | Rotating device suitable for high pressure scene and mechanical device using rotating device |
| CN204371658U (en) * | 2014-12-20 | 2015-06-03 | 重庆交联电缆有限公司 | A kind of stator bimorph transducer pump structure |
| CN105471172A (en) * | 2015-11-20 | 2016-04-06 | 西安交通大学 | High-speed dual-inclined-plate axial-plunger switch reluctance synchronization motor pump for airplane |
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