CN112696301A - Intermittent soft fault detection system of electronic injection fuel pump - Google Patents
Intermittent soft fault detection system of electronic injection fuel pump Download PDFInfo
- Publication number
- CN112696301A CN112696301A CN202011468966.XA CN202011468966A CN112696301A CN 112696301 A CN112696301 A CN 112696301A CN 202011468966 A CN202011468966 A CN 202011468966A CN 112696301 A CN112696301 A CN 112696301A
- Authority
- CN
- China
- Prior art keywords
- oil
- pump
- flowmeter
- fuel
- buoy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/007—Cleaning
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an intermittent soft fault detection system of an electronic injection fuel pump, which comprises a box body, wherein a detection module and a cleaning module are installed on the box body, the detection module comprises a flow detection module and an oil pressure detection module, the flow detection module comprises a flow meter, an oil return pipe is connected to the pipe wall of the flow meter in a penetrating mode, a buoy is installed inside the flow meter, the size of the buoy is matched with the diameter of the inner wall of the flow meter, the top of the buoy is covered with a magnetic material, the buoy is hollow so that the buoy can float on fuel oil, a through hole is formed in the top of the flow meter, and the through hole can ensure that the pressure difference inside and outside the flow meter is balanced so that the. According to the intermittent soft fault detection system for the electronic injection fuel pump, the detection module and the cleaning module are arranged, so that whether the fuel injection fuel pump is in a soft fault or a hard fault can be determined, the reason for the soft fault is solved, and the working power of the cleaning module is controlled through the result of the detection module.
Description
Technical Field
The invention relates to the field of automobile fault detection, in particular to an intermittent soft fault detection system of an electronic injection fuel pump.
Background
The fuel pump is one of the basic components of the fuel injection system of the electric injection automobile and is positioned in a fuel tank of the automobile, the fuel pump is used for sucking fuel out of the fuel tank, pressurizing the fuel and then conveying the fuel into a fuel supply pipe, a certain fuel pressure is established by matching with a fuel pressure regulator, the fuel pump is composed of an electric motor, a pressure limiter and an inspection valve, the electric motor actually works in the fuel in a fuel pump shell, and the fuel can lubricate and cool the fuel motor because nothing can ignite is arranged in the shell, the inspection valve is arranged at an oil outlet, the pressure limiter is positioned at the pressure side of the fuel pump shell and is provided with a channel leading to an oil inlet, the maximum pump oil pressure of the fuel pump depends on the standard of the pressure limiter, and if the pump pressure of the fuel exceeds a preset pressure limit, the pressure limiter can open a bypass to enable the fuel to flow back to the. Some hard faults (such as incapability of working and the like) of an automobile fuel pump are easy to judge, but some intermittent soft faults are difficult to judge, for example, the output of fuel in the fuel pump cannot meet the standard, possibly due to occasional blockage of impurities, the performance of the fuel pump is usually judged by adopting a method for detecting the working current of the fuel pump by using an automobile digital multimeter, and the soft faults can be detected only by multiple detections, so that the method for judging the faults is inconvenient and inaccurate, and the engine needs to be started for multiple times, so that the service life of the engine is influenced.
Therefore, the intermittent soft fault detection system of the electronic injection fuel pump is provided with the detection module and the cleaning module, can determine whether the fuel pump is in a soft fault or a hard fault and solve the reason of the soft fault, the working power of the cleaning module is controlled through the result of the detection module, and the working module can remove impurities at regular time and avoid the soft fault from happening again.
Disclosure of Invention
The invention mainly aims to provide an intermittent soft fault detection system of an electronic injection fuel pump, which fills the blank that no intermittent soft fault is effectively detected at present and can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides an electricity spouts soft fault detection system of intermittent type nature of fuel pump, includes the box, install detection module and clearance module on the box, detection module includes flow detection module and oil pressure detection module, flow detection module includes the flowmeter, the pipe wall through connection of flowmeter has back oil pipe, the internally mounted of flowmeter has the buoy, the size of buoy and the inner wall diameter phase-match of flowmeter, the top of buoy covers has magnetic material and the inside cavity of buoy makes it float on the fuel, the through-hole has been seted up at the top of flowmeter, the through-hole can ensure that the inside and outside pressure differential balance of flowmeter is convenient for the buoy to move in the flowmeter, flowmeter fixed mounting is at the top of box, the bottom of flowmeter and the top of box all run through and have seted up return oil passageway, return oil passageway's top fixed mounting has the motorised valve, the utility model discloses a flowmeter, including flowmeter, power regulation mechanism, the top fixed mounting of the left box of flowmeter has power regulation mechanism, vertical spout has been seted up to one side that is close to the flowmeter of power regulation mechanism, the inside sliding connection of spout has the slider, one side fixed mounting that is close to the flowmeter of slider has the fixed plate, the one end that is close to the flowmeter of fixed plate uses magnetic material and its radian the same with the radian of flowmeter outer wall, the power size that clearance module can be adjusted to the distance that the buoy passed through magnetic force drive fixed plate and reciprocated, the pipe wall of flowmeter is transparent and be equipped with the scale and be convenient for directly.
Further, the clearance module includes upset lid and clearance mechanism, the bottom at the back of upset lid is rotated and is connected with the pivot, pivot fixed mounting is at the upper surface of box, clearance mechanism fixed mounting is in the bottom of upset lid, the semicircle orifice has been seted up to the bottom of the left and right sides of upset lid and is convenient for its upset not sheltered from, clearance mechanism uses the strong cavitation and the vibration of ultrasonic wave production to peel off the dirt and drop, the bottom of upset lid covers and has the effect that the ultrasonic reflection layer is used for improving the sound wave clearance, power adjustment mechanism can be according to how much the operating power size of adjusting clearance mechanism of fuel backward flow.
Furthermore, an oil storage space is formed in the box body, a pump to be detected is placed in the oil storage space and comprises an electric motor and a pump cover, the pump to be detected is fixedly installed on the box body through the pump cover, an oil outlet and an oil return opening are fixedly connected to the top of the pump cover, and air in the oil storage space can be discharged by keeping fuel oil in the oil storage space at a sufficient level, so that the safety during detection is improved.
Furthermore, the top of oil-out is pegged graft and is had an oil pipe, the one end of keeping away from the oil-out of oil pipe runs through box intercommunication oil storage space, it has back oil pipe to peg graft at the top of oil return opening, the one end intercommunication flowmeter inboard bottom of keeping away from the oil return opening of back oil pipe, oil pipe and oil return passage can make the oil cycle in the testing process use.
Furthermore, the inside fixed mounting of oil-out has the check valve, the check valve can prevent that the fuel from flowing back to the oil storage space, the inside fixed mounting of oil return opening has the relief valve, the relief valve reduces pressure with unnecessary oil discharge when the oil pressure is too high.
Furthermore, a working module is installed on the outer side of the oil outlet and comprises a fixing ring and an ultrasonic sounder, the fixing ring is clamped and fixed on the outer side pipe wall of the oil outlet, the ultrasonic sounder is fixedly installed inside the fixing ring, and the ultrasonic sounder is started regularly to prevent soft faults.
Furthermore, a touch control screen is fixedly installed on the front surface of the box body, and the touch control screen can control the starting of the pump to be detected, the electric valve and the cleaning mechanism.
Further, an intermittent soft fault detection method for an electronic injection fuel pump comprises the following steps:
the method comprises the following steps: the method comprises the following steps that a pump to be detected is installed in a box body, the working part of the pump to be detected is completely immersed into fuel oil in an oil storage space, the fuel oil in the oil storage space is kept sufficient, air in the oil storage space can be discharged, and the safety during detection is improved;
step two: observing whether fuel enters the flowmeter or not, observing the fuel in the flowmeter during each detection, indicating that a hard fault occurs in the pump to be detected and a new fuel pump needs to be replaced, observing the fuel in the flowmeter only occasionally during a plurality of detections, indicating that a soft fault occurs in the pump to be detected and the oil outlet is partially blocked, using a cleaning module to solve the soft fault, turning a turning cover to the pump to be detected through a rotating shaft to cover the pump to be detected, using strong cavitation and vibration generated by ultrasonic waves to strip and drop impurities by a cleaning mechanism at the bottom of the turning cover, improving the effect of sound wave cleaning by an ultrasonic reflection layer covered at the bottom of the turning cover, controlling the working power of the cleaning mechanism by a power adjusting mechanism, enabling a buoy to move upwards by the fuel observed in the flowmeter, driving the fixed plate to move by the buoy through the magnetic action by the fixed plate in the power adjusting mechanism, if more fuel oil flows into the flowmeter, the blockage of the pump to be detected is indicated seriously, the working power of the cleaning mechanism is larger when the buoy drives the fixed plate to move upwards for a larger distance, and if less fuel oil flows into the flowmeter, the blockage degree of the pump to be detected is indicated to be lighter, and the working power of the cleaning mechanism is smaller when the buoy drives the fixed plate to move upwards for a smaller distance;
step three: repeated detection is carried out for a plurality of times after the soft fault is solved, if no fault is generated, the pump to be detected can be continuously used, if the soft fault is generated, the impurity can be gradually accumulated in the using process, a small amount of impurity accumulated at the oil outlet is vibrated down and smashed by periodically starting the working module, meanwhile, the oil pressure in the pump reaches the maximum value of the allowed fuel flow of the one-way valve, the blocked impurity can be removed to the maximum degree by the matching between the impact force of the fuel flowing out of the oil outlet and the ultrasonic vibration, the soft fault can be prevented from being generated again by periodic clearing, and the pump to be detected can be normally used.
Compared with the prior art, the invention has the following beneficial effects:
1. the detection module and the cleaning module are arranged, so that whether the fault is a soft fault or a hard fault can be determined, the reason of the soft fault is solved, the working power of the cleaning module is controlled by the result of the detection module, the pump to be detected is started by the touch control screen, the oil pressure in the pump reaches the maximum value of the fuel flow rate which can be passed through by the one-way valve, the fuel oil does not pass through the oil return port when the pump to be detected normally works, the detection step is repeated for many times, whether the fuel oil enters the flowmeter or not is observed, the fuel oil can be observed in the flowmeter during each detection, the hard fault of the pump to be detected is indicated, the fuel oil can be observed in the flowmeter only occasionally, the soft fault of the pump to be detected is indicated, the cleaning mechanism at the bottom of the turnover cover uses strong cavitation and vibration generated by ultrasonic waves to peel off impurities, and the ultrasonic reflection, the power adjusting mechanism can adjust the working power of the cleaning mechanism according to the amount of fuel oil backflow;
2. through the work module that is equipped with, can regularly clear away impurity, avoid soft trouble to take place once more, carry out a lot of repetition detection again after soft trouble is solved, if still take place soft trouble, it can pile up gradually in the use to explain impurity, will pile up a small amount of impurity shake at the oil-out and smash through work module regular start, meanwhile make the oil pressure in the pump reach the maximum value that the check valve allows to let through the fuel flow, the cooperation between the impact force of fuel outflow oil-out and ultrasonic vibration can the at utmost detach the impurity of jam, regular clear away can avoid soft trouble to take place once more, it can normal use to wait to detect the pump.
Drawings
Fig. 1 is a schematic diagram of an overall structure of an intermittent soft fault detection system of an electronic fuel injection pump according to the present invention.
FIG. 2 is a schematic cross-sectional view of the overall structure of an intermittent soft fault detection system for an electronic fuel injection pump according to the present invention.
FIG. 3 is an enlarged schematic view of A of FIG. 1 of an intermittent soft fault detection system for an electronic fuel injection pump of the present invention.
FIG. 4 is an enlarged schematic view of B in FIG. 2 of an intermittent soft fault detection system for an electronic fuel injection pump of the present invention.
FIG. 5 is a schematic cross-sectional view of a pump cover of an intermittent soft failure detection system of an electronic fuel injection pump according to the present invention.
FIG. 6 is a flowchart of the overall system for an intermittent soft fault detection system for an electric fuel injection pump according to the present invention
FIG. 7 is a block diagram of a detection module of an intermittent soft fault detection system for an electronic fuel injection pump of the present invention.
In the figure: 1. a box body; 2. a pump to be tested; 3. an oil outlet pipe; 4. a rotating shaft; 5. a cleaning module; 6. turning over the cover; 7. a touch control screen; 8. a pump cover; 9. an oil outlet; 10. an oil return port; 11. an oil return pipe; 12. an oil storage space; 13. a flow meter; 14. a float; 15. a power adjustment mechanism; 16. a fixing plate; 17. an oil return passage; 18. an electrically operated valve; 19. a chute; 20. a slider; 21. a one-way valve; 22. a pressure relief valve; 23. a fixing ring; 24. an ultrasonic sound generator; 25. a cleaning mechanism; 26. and a through hole.
Detailed Description
The present invention will be further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are not intended to be limiting, wherein certain elements may be omitted, enlarged or reduced in size, and are not intended to represent the actual dimensions of the product, so as to better illustrate the detailed description of the invention.
Example 1
As shown in fig. 1-7, an intermittent soft fault detection system of an electronic injection fuel pump comprises a tank body (1), wherein a detection module and a cleaning module (5) are installed on the tank body (1), the detection module comprises a flow detection module and an oil pressure detection module, the flow detection module comprises a flow meter (13), a pipe wall of the flow meter (13) is connected with an oil return pipe (11) in a penetrating way, a buoy (14) is installed inside the flow meter (13), the size of the buoy (14) is matched with the diameter of the inner wall of the flow meter (13), the top of the buoy (14) is covered with a magnetic material, the buoy (14) is hollow inside and can float on fuel oil, a through hole (26) is formed in the top of the flow meter (13), the through hole (26) can ensure that the pressure difference between the inside and the outside of the flow meter (13) is balanced, so that the buoy (14) can move inside the, the bottom of flowmeter (13) and the top of box (1) all run through and have seted up oil return channel (17), the top fixed mounting of oil return channel (17) has motorised valve (18), the top fixed mounting of the left box (1) of flowmeter (13) has power adjustment mechanism (15), vertical spout (19) have been seted up to one side that is close to flowmeter (13) of power adjustment mechanism (15), the inside sliding connection of spout (19) has slider (20), one side fixed mounting that is close to flowmeter (13) of slider (20) has fixed plate (16), the one end that is close to flowmeter (13) of fixed plate (16) uses magnetic material and its radian is the same with the radian of flowmeter (13) outer wall, buoy (14) drive the power size that clearance module (5) can be adjusted to the distance that fixed plate (16) reciprocated through magnetic force, the pipe wall of flowmeter (13) is transparent and is equipped with the scale and is convenient for directly observing.
Clearance module (5) are including upset lid (6) and clearance mechanism (25), the bottom rotation at the back of upset lid (6) is connected with pivot (4), pivot (4) fixed mounting is at the upper surface of box (1), clearance mechanism (25) fixed mounting is in the bottom of upset lid (6), the semicircle orifice has been seted up to the bottom of the left and right sides of upset lid (6) and is convenient for its upset not sheltered from, clearance mechanism (25) use the strong cavitation and the vibration that the ultrasonic wave produced to peel off the dirt, the bottom of upset lid (6) covers has the ultrasonic reflection layer to be used for improving the effect of sound wave clearance, power adjustment mechanism (15) can be according to how much the operating power size of adjusting clearance mechanism (25) of fuel backward flow.
Oil storage space (12) have been seted up to the inside of box (1), it waits to detect pump (2) to have placed in oil storage space (12), it includes electric motor and pump cover (8) to detect pump (2), it is fixed with box (1) installation through pump cover (8) to detect pump (2), the top fixedly connected with oil-out (9) and oil return opening (10) of pump cover (8), the fuel in oil storage space (12) keeps sufficient level can discharge the inside air in oil storage space (12) and helps improving the security when detecting.
The top of oil-out (9) is pegged graft and is had oil outlet pipe (3), and the one end of keeping away from oil-out (9) of oil outlet pipe (3) runs through box (1) intercommunication oil storage space (12), and it has back oil pipe (11) to peg graft at the top of oil return opening (10), and the one end intercommunication flowmeter (13) inboard bottom of keeping away from oil return opening (10) of back oil pipe (11), and oil outlet pipe (3) and oil return passageway (17) can make the oil cycle use in the testing process.
The inside of the oil outlet (9) is fixedly provided with a one-way valve (21), the one-way valve (21) can prevent fuel oil from flowing back to the oil storage space (12), the inside of the oil return opening (10) is fixedly provided with a pressure relief valve (22), and the pressure relief valve (22) can discharge redundant oil to reduce pressure when the oil pressure is too high.
The front surface of the box body (1) is fixedly provided with a touch control screen (7), and the touch control screen (7) can control the starting of the pump (2) to be detected, the electric valve (18) and the cleaning mechanism (25).
By adopting the technical scheme: the detection module and the cleaning module (5) are arranged, whether soft failure or hard failure can be determined, the reason of soft failure is solved, the working power of the cleaning module (5) is controlled through the result of the detection module, the pump (2) to be detected is started through the touch control screen (7), the oil pressure in the pump reaches the maximum value of the fuel flow rate which can be passed through by the one-way valve (21), the pump (2) to be detected does not have fuel oil passing through the oil return opening (10) when the pump (2) to be detected normally works, the detection step is repeated for multiple times, whether fuel oil enters the flowmeter (13) or not is observed, the fuel oil can be observed in the flowmeter (13) when the detection is carried out each time, hard failure of the pump (2) to be detected is shown, only occasionally, the fuel oil can be observed in the flowmeter (13), soft failure of the pump (2) to be detected is shown, the cleaning mechanism (25) at the bottom of the turnover cover (6), the ultrasonic reflection layer covered at the bottom of the turnover cover (6) can improve the sound wave cleaning effect, and the power adjusting mechanism (15) can adjust the working power of the cleaning mechanism (25) according to the quantity of fuel oil backflow.
Example 2
As shown in fig. 1-7, an intermittent soft fault detection system of an electronic injection fuel pump comprises a tank body (1), wherein a detection module and a cleaning module (5) are installed on the tank body (1), the detection module comprises a flow detection module and an oil pressure detection module, the flow detection module comprises a flow meter (13), a pipe wall of the flow meter (13) is connected with an oil return pipe (11) in a penetrating way, a buoy (14) is installed inside the flow meter (13), the size of the buoy (14) is matched with the diameter of the inner wall of the flow meter (13), the top of the buoy (14) is covered with a magnetic material, the buoy (14) is hollow inside and can float on fuel oil, a through hole (26) is formed in the top of the flow meter (13), the through hole (26) can ensure that the pressure difference between the inside and the outside of the flow meter (13) is balanced, so that the buoy (14) can move inside the, the bottom of flowmeter (13) and the top of box (1) all run through and have seted up oil return channel (17), the top fixed mounting of oil return channel (17) has motorised valve (18), the top fixed mounting of the left box (1) of flowmeter (13) has power adjustment mechanism (15), vertical spout (19) have been seted up to one side that is close to flowmeter (13) of power adjustment mechanism (15), the inside sliding connection of spout (19) has slider (20), one side fixed mounting that is close to flowmeter (13) of slider (20) has fixed plate (16), the one end that is close to flowmeter (13) of fixed plate (16) uses magnetic material and its radian is the same with the radian of flowmeter (13) outer wall, buoy (14) drive the power size that clearance module (5) can be adjusted to the distance that fixed plate (16) reciprocated through magnetic force, the pipe wall of flowmeter (13) is transparent and is equipped with the scale and is convenient for directly observing.
Clearance module (5) are including upset lid (6) and clearance mechanism (25), the bottom rotation at the back of upset lid (6) is connected with pivot (4), pivot (4) fixed mounting is at the upper surface of box (1), clearance mechanism (25) fixed mounting is in the bottom of upset lid (6), the semicircle orifice has been seted up to the bottom of the left and right sides of upset lid (6) and is convenient for its upset not sheltered from, clearance mechanism (25) use the strong cavitation and the vibration that the ultrasonic wave produced to peel off the dirt, the bottom of upset lid (6) covers has the ultrasonic reflection layer to be used for improving the effect of sound wave clearance, power adjustment mechanism (15) can be according to how much the operating power size of adjusting clearance mechanism (25) of fuel backward flow.
The working module is installed on the outer side of the oil outlet (9) and comprises a fixing ring (23) and an ultrasonic sounder (24), the fixing ring (23) is clamped and fixed on the outer side pipe wall of the oil outlet (9), the ultrasonic sounder (24) is fixedly installed inside the fixing ring (23), and the ultrasonic sounder (24) is started regularly to prevent soft faults.
By adopting the technical scheme: the working module that is equipped with can regularly clear away impurity, avoid soft trouble to take place once more, carry out repeated detection many times again after soft trouble is solved, if still soft trouble takes place, it can be piled up gradually in the use to explain impurity, shake down and smash a small amount of impurity that will pile up at oil-out (9) through the regular start of working module, make the oil pressure in the pump reach check valve (21) and allow the maximum value of permitting through the fuel flow simultaneously, the cooperation between the impact force of fuel outflow oil-out (9) and ultrasonic vibration can the at utmost detach the impurity of jam, regularly clear away can avoid soft trouble to take place once more, it can normal use to detect pump (2).
The intermittent soft fault detection system of the electronic injection fuel pump comprises a tank body (1) and a cable, wherein when the system is used, a pump (2) to be detected is installed in the tank body (1), the working part of the pump (2) to be detected is completely immersed in fuel oil in an oil storage space (12), the fuel oil in the oil storage space (12) is kept sufficient, air in the oil storage space (12) can be discharged, the safety during detection is improved, the cable is connected with the pump (2) to be detected, an oil outlet (9) and an oil return port (10) are respectively connected with an oil outlet pipe (3) and an oil return pipe (11), the pump (2) to be detected is started through a touch control screen (7), the oil pressure in the pump reaches the maximum value that a one-way valve (21) can pass through the flow of the fuel oil, a flow detection module and an oil pressure detection module start to work, the pump (2) to be detected does not normally work, and the fuel oil does not pass through, repeating the detection step for multiple times, secondly, observing whether fuel enters the flow meter (13), observing the fuel in the flow meter (13) when detecting each time, indicating that the pump (2) to be detected has a hard fault and needs to be replaced by a new fuel pump, observing the fuel in the flow meter (13) only occasionally when detecting the pump for multiple times, indicating that the pump (2) to be detected has a soft fault and the oil outlet (9) is partially blocked, using the cleaning module (5) to solve the soft fault, turning the turning cover (6) to the pump (2) to be detected through the rotating shaft (4) to cover the turning cover, using the strong cavitation and vibration generated by ultrasonic waves to strip impurities off the impurities by the cleaning mechanism (25) at the bottom of the turning cover (6), improving the effect of sound wave cleaning by the ultrasonic reflection layer covered at the bottom of the turning cover (6), wherein the working power of the cleaning mechanism (25) is controlled by the power adjusting mechanism (15), the fuel oil observed in the flow meter (13) can enable the buoy (14) to move upwards, the fixed plate (16) in the power adjusting mechanism (15) drives the fixed plate (16) to move through the magnetic action by the buoy (14), if more fuel oil flows into the flow meter (13) indicates that the pump (2) to be detected is seriously blocked, the larger the distance that the buoy (14) drives the fixed plate (16) to move upwards is, the larger the working power of the cleaning mechanism (25) is, if less fuel oil flows into the flow meter (13) indicates that the pump (2) to be detected is lightly blocked, the smaller the distance that the buoy (14) drives the fixed plate (16) to move upwards is, the smaller the working power of the cleaning mechanism (25) is, finally, repeated detection is carried out for many times after the soft fault is solved, if no fault is generated, the pump (2) to be detected can be continuously used, if the soft fault is generated, the situation that impurities are gradually accumulated in, a small amount of impurities accumulated at the oil outlet (9) are vibrated and dropped and smashed by periodically starting the working module, meanwhile, the oil pressure in the pump reaches the maximum value of the flow rate allowed to pass through by the check valve (21), the blocked impurities can be removed to the maximum degree by the matching between the impact force of the fuel oil flowing out of the oil outlet (9) and the ultrasonic vibration, the soft fault can be avoided from happening again by periodically clearing, and the pump (2) to be detected can be normally used.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an electricity spouts soft fault detection system of intermittent type nature of fuel pump, includes the box, install detection module and clearance module on the box, its characterized in that: the detection module comprises a flow detection module and an oil pressure detection module, the flow detection module comprises a flowmeter, the pipe wall of the flowmeter is connected with an oil return pipe in a penetrating way, a buoy is arranged inside the flowmeter, the size of the buoy is matched with the inner wall diameter of the flowmeter, the top of the buoy is covered with a magnetic material, the buoy is hollow inside the buoy so as to float on fuel oil, a through hole is formed in the top of the flowmeter, the through hole can ensure that the pressure difference inside and outside the flowmeter is balanced, so that the buoy can move in the flowmeter, the flowmeter is fixedly arranged at the top of the box body, the bottom of the flowmeter and the top of the box body are both provided with an oil return channel in a penetrating way, an electric valve is fixedly arranged at the top of the oil return channel, a power adjusting mechanism is fixedly arranged at the top of, the inner part of the sliding chute is connected with a sliding block in a sliding manner, one side of the sliding block, which is close to the flowmeter, is fixedly provided with a fixed plate, one end of the fixed plate, which is close to the flowmeter, is made of a magnetic material, the radian of the end of the fixed plate is the same as that of the outer wall of the flowmeter, the power of the cleaning module can be adjusted by the aid of the distance for the buoy to drive the fixed plate to move up and down through magnetic force, and the pipe wall of the;
the clearance module includes upset lid and clearance mechanism, the bottom at the back of upset lid is rotated and is connected with the pivot, pivot fixed mounting is at the upper surface of box, clearance mechanism fixed mounting is in the bottom of upset lid, the semicircle orifice has been seted up to the bottom of the left and right sides of upset lid and its upset of being convenient for is not sheltered from, clearance mechanism uses the strong cavitation and the vibration of ultrasonic wave production to peel off the dirt and drop, the bottom of upset lid covers and has the effect that the ultrasonic reflection layer is used for improving the sound wave clearance, power adjustment mechanism can be according to how much the operating power size of adjusting clearance mechanism of fuel backward flow.
2. An intermittent soft fault detection system for an electronic fuel injection pump according to claim 1, wherein: the oil storage space has been seted up to the inside of box, it has placed in the oil storage space and has waited the pump of waiting to detect, it includes electric motor and pump cover to wait to detect the pump, it is fixed with the box installation through the pump cover to wait to detect the pump, the top fixedly connected with oil-out and the oil return opening of pump cover, the fuel in the oil storage space keeps sufficient level and can discharges the air in the oil storage space and help improving the security when examining.
3. An intermittent soft fault detection system for an electronic fuel injection pump as claimed in claim 2, wherein: the top of oil-out is pegged graft and is had an oil pipe, the one end of keeping away from the oil-out of oil pipe runs through box intercommunication oil storage space, it has back oil pipe to peg graft at the top of oil return opening, the one end intercommunication flowmeter inboard bottom of keeping away from the oil return opening of back oil pipe, oil pipe and oil return passageway can make the oil cycle in the testing process use.
4. An intermittent soft fault detection system for an electronic fuel injection pump as claimed in claim 2, wherein: the oil return port is fixedly provided with a pressure release valve, and the pressure release valve can discharge redundant oil to reduce pressure when the oil pressure is too high.
5. An intermittent soft fault detection system for an electronic fuel injection pump as claimed in claim 2, wherein: the oil-out device is characterized in that a working module is installed on the outer side of the oil-out, the working module comprises a fixing ring and an ultrasonic sounder, the fixing ring is clamped and fixed on the outer side pipe wall of the oil-out, the ultrasonic sounder is fixedly installed inside the fixing ring, and the ultrasonic sounder is started regularly to prevent soft faults.
6. An intermittent soft fault detection system for an electronic fuel injection pump according to claim 1, wherein: and a touch control screen is fixedly arranged on the front surface of the box body, and the touch control screen can control the starting of the pump to be detected, the electric valve and the cleaning mechanism.
7. An intermittent soft fault detection method for an electronic fuel injection pump according to any one of claims 1 to 6, characterized in that: the using steps are as follows:
the method comprises the following steps: the method comprises the following steps that a pump to be detected is installed in a box body, the working part of the pump to be detected is completely immersed into fuel oil in an oil storage space, the fuel oil in the oil storage space is kept sufficient, air in the oil storage space can be discharged, and the safety during detection is improved;
step two: observing whether fuel enters the flowmeter or not, observing the fuel in the flowmeter during each detection, indicating that a hard fault occurs in the pump to be detected and a new fuel pump needs to be replaced, observing the fuel in the flowmeter only occasionally during a plurality of detections, indicating that a soft fault occurs in the pump to be detected and the oil outlet is partially blocked, using a cleaning module to solve the soft fault, turning a turning cover to the pump to be detected through a rotating shaft to cover the pump to be detected, using strong cavitation and vibration generated by ultrasonic waves to strip and drop impurities by a cleaning mechanism at the bottom of the turning cover, improving the effect of sound wave cleaning by an ultrasonic reflection layer covered at the bottom of the turning cover, controlling the working power of the cleaning mechanism by a power adjusting mechanism, enabling a buoy to move upwards by the fuel observed in the flowmeter, driving the fixed plate to move by the buoy through the magnetic action by the fixed plate in the power adjusting mechanism, if more fuel oil flows into the flowmeter, the blockage of the pump to be detected is indicated seriously, the working power of the cleaning mechanism is larger when the buoy drives the fixed plate to move upwards for a larger distance, and if less fuel oil flows into the flowmeter, the blockage degree of the pump to be detected is indicated to be lighter, and the working power of the cleaning mechanism is smaller when the buoy drives the fixed plate to move upwards for a smaller distance;
step three: repeated detection is carried out for a plurality of times after the soft fault is solved, if no fault is generated, the pump to be detected can be continuously used, if the soft fault is generated, the impurity can be gradually accumulated in the using process, a small amount of impurity accumulated at the oil outlet is vibrated down and smashed by periodically starting the working module, meanwhile, the oil pressure in the pump reaches the maximum value of the allowed fuel flow of the one-way valve, the blocked impurity can be removed to the maximum degree by the matching between the impact force of the fuel flowing out of the oil outlet and the ultrasonic vibration, the soft fault can be prevented from being generated again by periodic clearing, and the pump to be detected can be normally used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011468966.XA CN112696301A (en) | 2020-12-15 | 2020-12-15 | Intermittent soft fault detection system of electronic injection fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011468966.XA CN112696301A (en) | 2020-12-15 | 2020-12-15 | Intermittent soft fault detection system of electronic injection fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112696301A true CN112696301A (en) | 2021-04-23 |
Family
ID=75509096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011468966.XA Pending CN112696301A (en) | 2020-12-15 | 2020-12-15 | Intermittent soft fault detection system of electronic injection fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112696301A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113304521A (en) * | 2021-06-23 | 2021-08-27 | 江苏圣泰阀门有限公司 | Novel soft sealing ball valve |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206286274U (en) * | 2016-10-07 | 2017-06-30 | 天津浩康科技发展有限公司 | A kind of new self-cleaning tubing |
| CN206906005U (en) * | 2017-05-04 | 2018-01-19 | 浙江吉利控股集团有限公司 | It is a kind of to be used for fuel pump, the performance test apparatus of fuel filter |
| CN207227365U (en) * | 2017-09-12 | 2018-04-13 | 阜南县胜天新能源开发有限公司 | A kind of stalk granulation device with cleaning function |
| CN109026485A (en) * | 2018-08-14 | 2018-12-18 | 南京双峰油泵油嘴有限公司 | Injection pump quickly detects experimental rig and its test method |
| CN109655274A (en) * | 2017-10-11 | 2019-04-19 | 中国航发西安动力控制科技有限公司 | A kind of environmental tester having failure of pump diagnostic function |
| JP2019163752A (en) * | 2018-03-20 | 2019-09-26 | 三菱電機株式会社 | Inspection device and inspection method of fuel pump |
| CN110500217A (en) * | 2019-07-23 | 2019-11-26 | 南京航空航天大学 | Based on can measured data feature common rail for diesel engine system oil pump fault detection method |
| CN111120173A (en) * | 2019-12-31 | 2020-05-08 | 吉利汽车研究院（宁波）有限公司 | High-pressure oil pump fault detection system, high-pressure oil pump fault detection method and vehicle |
| CN210833786U (en) * | 2019-12-10 | 2020-06-23 | 中电华辰（天津）精密测器股份公司 | Oil liquid level meter |
| CN211204513U (en) * | 2019-07-12 | 2020-08-07 | 东莞市泰丰空调制冷设备有限公司 | Self-cleaning shell and tube type water-cooling single-loop condenser |
-
2020
- 2020-12-15 CN CN202011468966.XA patent/CN112696301A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206286274U (en) * | 2016-10-07 | 2017-06-30 | 天津浩康科技发展有限公司 | A kind of new self-cleaning tubing |
| CN206906005U (en) * | 2017-05-04 | 2018-01-19 | 浙江吉利控股集团有限公司 | It is a kind of to be used for fuel pump, the performance test apparatus of fuel filter |
| CN207227365U (en) * | 2017-09-12 | 2018-04-13 | 阜南县胜天新能源开发有限公司 | A kind of stalk granulation device with cleaning function |
| CN109655274A (en) * | 2017-10-11 | 2019-04-19 | 中国航发西安动力控制科技有限公司 | A kind of environmental tester having failure of pump diagnostic function |
| JP2019163752A (en) * | 2018-03-20 | 2019-09-26 | 三菱電機株式会社 | Inspection device and inspection method of fuel pump |
| CN109026485A (en) * | 2018-08-14 | 2018-12-18 | 南京双峰油泵油嘴有限公司 | Injection pump quickly detects experimental rig and its test method |
| CN211204513U (en) * | 2019-07-12 | 2020-08-07 | 东莞市泰丰空调制冷设备有限公司 | Self-cleaning shell and tube type water-cooling single-loop condenser |
| CN110500217A (en) * | 2019-07-23 | 2019-11-26 | 南京航空航天大学 | Based on can measured data feature common rail for diesel engine system oil pump fault detection method |
| CN210833786U (en) * | 2019-12-10 | 2020-06-23 | 中电华辰（天津）精密测器股份公司 | Oil liquid level meter |
| CN111120173A (en) * | 2019-12-31 | 2020-05-08 | 吉利汽车研究院（宁波）有限公司 | High-pressure oil pump fault detection system, high-pressure oil pump fault detection method and vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113304521A (en) * | 2021-06-23 | 2021-08-27 | 江苏圣泰阀门有限公司 | Novel soft sealing ball valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112696301A (en) | Intermittent soft fault detection system of electronic injection fuel pump | |
| CN207147845U (en) | Water sample preprocessor and water quality monitoring system | |
| CA1192794A (en) | Marine propulsion device including engine housing pump mechanism | |
| WO2018201550A1 (en) | Purification device for centrifuged oil | |
| CN112879280A (en) | Automatic drawing liquid pump of separation waste material | |
| CN218973584U (en) | Oil pumping metering device | |
| US4295781A (en) | Method for operating fluid machines in spinning-in-air mode | |
| JP2008128000A (en) | Pump device | |
| CN207374282U (en) | Automobile hand washing sink control system | |
| CN212777886U (en) | Water pump assembly and air conditioner | |
| CN108150118A (en) | drilling fluid quantitative degasser | |
| CN107952760B (en) | Mud pipeline sediment pulse cleaning system | |
| CN220356470U (en) | Liquid level detection device and slag dragging machine cooling water pool | |
| CN113289399A (en) | High smooth liquid supply pipeline | |
| CN217267804U (en) | Constant-pressure variable-frequency water supply equipment | |
| CN201218209Y (en) | Gas, oil and water separation device for inner-cooling type compressor | |
| CN216645527U (en) | Building engineering water supply and drainage water yield monitoring device | |
| CN216900518U (en) | Multifunctional water quality detection device | |
| CN218816377U (en) | Fine oil reservoir shaft pressure simulation device based on computer | |
| JPH094538A (en) | Fuel pump device | |
| CN220878039U (en) | Anti-blocking structure of slurry recycling device | |
| CN219343075U (en) | But electricity generation formula water conservancy gate | |
| CN218727221U (en) | Flow cell of water quality analyzer | |
| CN218496185U (en) | Bar flowmeter with blow and blow-down functions | |
| CN117046305B (en) | PTFE membrane brine filtration system and filtration method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210423 |