CN115478968A

CN115478968A - Motorcycle oil return valve control system

Info

Publication number: CN115478968A
Application number: CN202211094014.5A
Authority: CN
Inventors: 孟祥涛; 唐会得; 苏枝山; 符浩
Original assignee: SHANGHAI KUNFU VEHICLE FITTINGS CO Ltd
Current assignee: SHANGHAI KUNFU VEHICLE FITTINGS CO Ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2022-12-16

Abstract

The application discloses a motorcycle oil return valve control system, which relates to the field of electronic injection motorcycles, and comprises an oil tank, a high-pressure oil pump and an electronic injection valve body which are sequentially communicated through a pipeline, wherein the whole system is electrically connected with an external control assembly; the oil tank is provided with an oil return valve main body, and the oil return valve main body is provided with an oil return inlet, an oil return outlet and an oil return outlet which are communicated with each other; the high-pressure oil pump is provided with an oil return nozzle, an oil inlet nozzle and an oil outlet nozzle which are communicated with each other, the oil return nozzle is communicated with an oil return outlet, the oil inlet nozzle is communicated with an exhaust port, and the oil outlet nozzle is communicated with the electric injection valve body; the system has the technical key points that the control assembly is designed in the system, the state of oil in the pipeline with the multi-section passages can be detected in real time, when air bubbles exist in the pipeline, the air bubbles can be discharged back to the oil tank in real time, the condition that the air bubbles exist in the oil entering the electric spray valve body is avoided, and the normal work of the system is ensured.

Description

Motorcycle oil return valve control system

Technical Field

The invention belongs to the field of electronic fuel injection motorcycles, and particularly relates to a motorcycle oil return valve control system.

Background

At present, an electronic fuel injection motorcycle is a novel motorcycle, fuel injection nozzles are controlled by a microcomputer to inject fuel to cylinders needing to work according to the load of an engine, and cylinders not working do not supply fuel; compared with the traditional carburetor motorcycle, the electronic fuel injection motorcycle saves more than 20 percent of fuel, compared with the same type carburetor motorcycle; because the digital ignition and oil injection functions are realized, the oil consumption is reduced, the emission is improved, and the device is more environment-friendly than a carburetor vehicle, directly reaches the European No. 11 emission standard, and simultaneously has the characteristic of easy starting and can be triggered at one touch; in addition, the idling stable electric control fuel injection technology is gradually applied; the fuel oil in the fuel tank is conveyed to the fuel oil filter through a pipeline under the pumping of the oil pump, reaches a rated pressure under the action of the fuel oil pressure regulator, is finally conveyed to the fuel oil injector, and the fuel oil after pressure relief returns to the fuel tank through an oil return pipeline.

Referring to fig. 5, a conventional oil return valve is a part for stabilizing pressure in an oil circuit of a diesel engine, and under a normal condition, the valve is closed, diesel oil flows in from a right-end inlet and flows out from a lower outlet; when the oil pressure rises and the pressure on the lower bottom surface of the valve exceeds the tension of the spring, the valve is jacked upwards, a part of diesel oil flows back to the oil tank from the oil return outlet on the left side, the oil pressure in the pipeline is reduced along with the rising of the oil pressure, when the pressure on the bottom surface of the valve is equal to the tension of the spring, the valve is closed, the valve needs to be arranged on the outlet on the bottom end of the oil return valve, and when the oil flows out from the oil return outlet on the left side, the valve needs to be closed

In addition, an oil pump of an oil supply system of an electronic injection motorcycle in the market is divided into a built-in oil pump and an external oil pump, the external oil pump is arranged below an oil tank, and the oil pump is supplied with oil by the gravity of fuel oil.

Disclosure of Invention

The technical problem to be solved is as follows:

aiming at the defects of the prior art, the invention provides a motorcycle oil return valve control system, wherein a control assembly is designed in the system, the oil state in a multi-section passage pipeline can be detected in real time, and when air bubbles are detected to exist in the pipeline, the air bubbles can be discharged back to an oil tank in real time, so that the problems in the background art are solved.

The technical scheme is as follows:

in order to achieve the purpose, the invention is realized by the following technical scheme:

a motorcycle oil return valve control system comprises an oil tank, a high-pressure oil pump and an electronic injection valve body which are sequentially communicated through pipelines, wherein the whole system is electrically connected with an external control assembly;

the oil tank is provided with an oil return valve main body, and the oil return valve main body is provided with an oil return inlet, an oil return outlet and an oil return outlet which are communicated with each other; the high-pressure oil pump is provided with an oil return nozzle, an oil inlet nozzle and an oil outlet nozzle which are communicated with each other, the oil return nozzle is communicated with an oil return outlet, the oil inlet nozzle is communicated with an exhaust port, and the oil outlet nozzle is communicated with the electric injection valve body; the control assembly is arranged on a passage between the oil return nozzle and the oil return outlet and a passage between the oil outlet nozzle and the electric injection valve body.

In one possible implementation, the control assembly comprises an analysis circuit and a detection mechanism;

the analysis circuit is connected with the two groups of detection mechanisms through leads; the detection mechanism comprises a first detection piece and a second detection piece which have the same functions, and the two detection pieces are used for detecting whether air bubbles exist in the corresponding pipelines or not.

The first detection piece comprises a first bubble sensor and a first valve which are connected in series, and the first bubble sensor is clamped on a passage between the oil outlet nozzle and the electric injection valve body; the second detection piece comprises a second bubble sensor and a second valve which are connected in series, and the second bubble sensor is clamped on a passage between the oil return nozzle and the oil return outlet.

Specifically, the control assembly is designed in the system, so that the oil state in the multi-section passage pipeline can be detected in real time, and when air bubbles are detected in the pipeline, the air bubbles can be discharged back to the oil tank in real time.

In a possible implementation manner, a plugging component is installed in the oil return valve main body, and the plugging component includes: an electric control cylinder and a stop block mechanism,

the stop block mechanism is arranged at one end of a piston rod matched with the electric control cylinder; the electric control cylinder is arranged at the top end of the oil return valve main body and used for driving the stop block mechanism to deflect up and down so as to realize switching of the discharge port and the oil return outlet; the electric control cylinder is connected with the analysis circuit through a lead.

In a possible implementation manner, the stop mechanism comprises an upper stop and a lower stop welded on the outer surface of the electric control cylinder;

the upper baffle piece is used for plugging a channel formed between the oil return inlet and the oil return outlet; and the lower baffle piece is used for plugging a channel formed between the oil return inlet and the discharge port.

Specifically, a stop block mechanism is designed in the oil return valve main body in the system, and the stop block mechanism can be driven to move up and down through a single electric control cylinder, so that flexible switching of each outlet can be realized, and multiple groups of passages are formed in the oil return valve main body.

In a possible implementation manner, a pressure gauge is installed on the oil return nozzle, a flow meter is installed on the oil inlet nozzle, and the pressure gauge and the flow meter are respectively used for detecting the pressure and the flow value when oil in the corresponding pipeline passes through.

In a possible implementation mode, the electric injection valve further comprises an overflow valve, the overflow valve is installed on a pipeline externally connected between the oil tank and the electric injection valve body, and the overflow valve is opened only when the oil quantity in the oil tank is over full.

Has the beneficial effects that:

firstly, in the scheme, the control assembly is designed in the system, so that the oil state in the pipeline with the multiple sections of passages can be detected in real time, and when air bubbles are detected in the pipeline, the air bubbles can be discharged back into the oil tank in real time, so that the condition that the air bubbles exist in the oil entering the electric injection valve body is avoided, and the normal work of the system is ensured;

secondly, in this scheme, design dog mechanism in the time oil valve main part in this system, can drive dog mechanism through single automatically controlled cylinder and reciprocate, can realize carrying out the nimble switching to each export for form multiunit passageway in the time oil valve main part, solved still need be equipped with the problem of valve in the traditional time oil valve main part.

Drawings

FIG. 1 is a schematic diagram of the overall control system configuration of the present invention;

FIG. 2 is a schematic view of the connection state of the various elements in the control assembly of the present invention;

FIG. 3 is one of cross-sectional views of the oil return valve body of the present invention;

FIG. 4 is a second cross-sectional view of the body of the oil return valve of the present invention;

fig. 5 is a sectional view showing the entire structure of a prior art oil return valve.

Reference numerals are as follows: 1. an oil tank; 2. a high-pressure oil pump; 21. an oil return nozzle; 22. an oil inlet nozzle; 23. an oil outlet nozzle; 3. an electrojet valve body; 4. an oil return valve body; 41. an oil return inlet; 42. an outlet port; 43. an oil return outlet; 5. an analysis circuit; 6. a first bubble sensor; 7. a first valve; 8. a second bubble sensor; 9. a second valve; 10. a pressure gauge; 11. a flow meter; 12. an overflow valve; 13. an electric control cylinder; 14. an upper stopper; 15. and a lower stopper.

Detailed Description

The embodiment of the application provides a motorcycle return valve control system, designs the control assembly in this system, but the oil state in the real-time detection multistage passageway pipeline, when detecting that there is the air bubble in the pipeline, can arrange this air bubble back to the oil tank in real time in, has solved the problem that mentions in the background art.

In order to solve the above problems, the technical solution in the embodiments of the present application has the following general idea:

example 1:

the specific structure of the whole control system is provided in the embodiment, as shown in fig. 1-4, the motorcycle oil return valve control system comprises an oil tank 1, a high-pressure oil pump 2 and an electronic injection valve body 3 which are sequentially communicated through a pipeline, and the whole system is electrically connected with an external control assembly;

wherein, the oil tank 1 is provided with an oil return valve main body 4, and the oil return valve main body 4 is provided with an oil return inlet 41, an exhaust port 42 and an oil return outlet 43 which are mutually communicated, and the position of each port arranged on the oil return valve main body 4 can be seen by referring to fig. 3;

the high-pressure oil pump 2 is provided with an oil return nozzle 21, an oil inlet nozzle 22 and an oil outlet nozzle 23 which are communicated with each other, the oil return nozzle 21 is communicated with an oil return outlet 43, the oil inlet nozzle 22 is communicated with an outlet 42, the oil outlet nozzle 23 is communicated with the electric injection valve body 3, each port and the oil nozzle are communicated through a rubber pipe, and the rubber pipe is in a sealing state with the connecting end of the corresponding port or the oil nozzle; the control assembly is arranged on a passage between the oil return nozzle 21 and the oil return outlet 43 and a passage between the oil outlet nozzle 23 and the electric injection valve body 3;

meanwhile, the control assembly is used for controlling the whole system, a specific core element is a central processing chip embedded on the analysis circuit 5, and the chip adopts a control chip of a PLC226 model.

In some examples, the control assembly comprises an analysis circuit 5 and a detection mechanism; wherein, the analysis circuit 5 is connected with the two groups of detection mechanisms through leads; the detection mechanism comprises a first detection piece and a second detection piece which have the same function.

In a specific application scene, the first detection part is used for detecting the content of air bubbles in oil at the outlet of the oil outlet 23, when the air bubbles are detected, the analysis circuit 5 judges that air exists in an oil path, the first valve 7 is closed at the moment, the second valve 9 in the second detection part is opened, the second bubble sensor 8 is used for monitoring whether the air bubbles exist in a corresponding pipeline in real time, the high-pressure oil pump 2 pumps the oil back into the oil valve main body 4 at the moment, the second valve 9 is closed until the second bubble sensor 8 cannot detect the air bubbles, the first valve 7 is opened, and the oil path at the moment is pumped into the electric injection valve body 3 by the high-pressure oil pump 2.

The first detection piece comprises a first bubble sensor 6 and a first valve 7 which are mutually connected in series, and the first bubble sensor 6 is clamped on a passage between the oil outlet 23 and the electric injection valve body 3; the second detection element includes a second bubble sensor 8 and a second valve 9 connected in series, and the second bubble sensor 8 is interposed in a passage between the oil return nozzle 21 and the oil return outlet 43.

In a specific application scene, the types of the sensors adopted by the first bubble sensor 6 and the second bubble sensor 8 are the same, and the valves adopted by the first valve 7 and the second valve 9 are both electric control valves.

By adopting the technical scheme:

the control assembly is designed in the system, so that the state of oil in the multi-section channel pipeline can be detected in real time, when air bubbles exist in the pipeline, the air bubbles can be discharged back into the oil tank 1 in real time, the condition that the air bubbles exist in the oil entering the electronic injection valve body 3 is avoided, and the normal work of the system is ensured.

Example 2:

based on embodiment 1, this embodiment provides a specific structure of the entire plugging assembly, as shown in fig. 3 and 4, the plugging assembly is installed in the oil return valve main body 4, and the plugging assembly includes: the electric control cylinder 13 and the stop block mechanism are arranged at one end of a piston rod matched with the electric control cylinder 13; the electric control cylinder 13 is mounted at the top end of the oil return valve body 4 and used for driving the stop block mechanism to shift up and down, so that the discharge port 42 and the oil return outlet 43 are switched.

In a specific application scenario, referring to fig. 3 and 4, the switching process of the discharge port 42 and the oil return outlet 43 can be seen, and the state shown in fig. 3 is that the electric control cylinder 13 drives the stopper mechanism to move down, and the upper stopper 14 is used to complete the plugging of the oil return outlet 43, and the state at this time is the normal oil supply treatment;

fig. 4 shows a state in which the electric control cylinder 13 drives the stopper mechanism to move up, and the lower stopper 15 is used to complete the plugging of the discharge port 42, which is a state in which it is ensured that air exists in the oil path and is discharged back into the oil tank 1, and it is ensured that no air bubbles exist in the whole oil supply system.

In some examples, the electric control cylinder 13 is connected with the analysis circuit 5 through a wire; the stop block mechanism comprises an upper stop piece 14 and a lower stop piece 15 welded on the outer surface of the electric control cylinder 13, the upper stop piece 14 and the lower stop piece 15 are made of the same material, the specific shape can be designed according to the shape of the inner wall in a corresponding passage, the two stop pieces are ensured to be attached to the inner wall of each through hole in the oil return valve main body 4, and the sealing is realized;

unlike conventional scavenge valves: the lower blocking piece 15 is designed below the upper blocking piece 14, the lower blocking piece 15 replaces a traditional valve body, the position of the lower blocking piece 15 can be regulated and controlled at the same time by regulating and controlling the position of the upper blocking piece 14, the lower blocking piece 15 blocks the discharge port 42, the same function as the traditional valve body is achieved, and the cost of the traditional oil return valve is reduced.

The upper stopper 14 is used for blocking a channel formed between the oil return inlet 41 and the oil return outlet 43; the lower stopper 15 is used to block the passage formed between the oil return inlet 41 and the discharge port 42.

In some examples, the oil return nozzle 21 is provided with a pressure gauge 10, the oil inlet nozzle 22 is provided with a flow meter 11, the pressure gauge 10 is used for detecting the oil pressure on the corresponding pipeline, and the flow meter 11 is used for detecting the oil quantity passing through the corresponding pipeline.

In some examples, the fuel injection valve further comprises an overflow valve 12, which is installed on an external pipeline between the fuel tank 1 and the electronic injection valve body 3, and when the fuel in the fuel tank 1 is over-full, the overflow valve 12 can be opened, so that a part of fuel at multiple positions can be temporarily stored in the external pipeline.

By adopting the technical scheme:

the check block mechanism is designed in the oil return valve main body 4 in the system, and the check block mechanism can be driven to move up and down through the single electric control cylinder 13, so that flexible switching of each outlet can be realized, multiple groups of passages are formed in the oil return valve main body 4, and the problem that a valve is required to be equipped in the traditional oil return valve main body 4 is solved.

Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.

Claims

1. A motorcycle oil return valve control system comprises an oil tank (1), a high-pressure oil pump (2) and an electronic injection valve body (3) which are sequentially communicated through pipelines, and is characterized in that the whole system is electrically connected with an external control assembly;

the oil tank (1) is provided with an oil return valve main body (4), and the oil return valve main body (4) is provided with an oil return inlet (41), an oil return outlet (42) and an oil return outlet (43) which are communicated with each other;

the high-pressure oil pump (2) is provided with an oil return nozzle (21), an oil inlet nozzle (22) and an oil outlet nozzle (23) which are communicated with each other, the oil return nozzle (21) is communicated with an oil return outlet (43), the oil inlet nozzle (22) is communicated with a discharge port (42), and the oil outlet nozzle (23) is communicated with the electric injection valve body (3);

the control assembly is arranged on a passage between the oil return nozzle (21) and the oil return outlet (43) and a passage between the oil outlet nozzle (23) and the electric injection valve body (3).

2. A motorcycle spill valve control system as claimed in claim 1, wherein: the control assembly comprises an analysis circuit (5) and a detection mechanism;

the analysis circuit (5) is connected with the two groups of detection mechanisms through leads;

the detection mechanism comprises a first detection piece and a second detection piece with the same functions.

3. A motorcycle spill valve control system as claimed in claim 2, wherein: the first detection piece comprises a first bubble sensor (6) and a first valve (7) which are connected in series, and the first bubble sensor (6) is clamped on a passage between the oil outlet nozzle (23) and the electric injection valve body (3).

4. A motorcycle spill valve control system as claimed in claim 2, wherein: the second detection piece comprises a second bubble sensor (8) and a second valve (9) which are connected in series, and the second bubble sensor (8) is clamped on a passage between the oil return nozzle (21) and the oil return outlet (43).

5. A motorcycle spill valve control system as claimed in claim 1, wherein: install the shutoff subassembly in the time oil return valve main part (4), and the shutoff subassembly contains:

an electrically controlled cylinder (13); and

the stop block mechanism is arranged at one end of a piston rod matched with the electric control cylinder (13);

the electric control cylinder (13) is mounted at the top end of the oil return valve main body (4) and used for driving the stop block mechanism to deflect up and down, and switching between the discharge port (42) and the oil return outlet (43) is achieved.

6. A motorcycle spill valve control system as set forth in claim 5, wherein: the electric control cylinder (13) is connected with the analysis circuit (5) through a lead.

7. A motorcycle spill valve control system as claimed in claim 5, wherein: the stop block mechanism comprises an upper stop piece (14) and a lower stop piece (15) which are welded on the outer surface of the electric control cylinder (13);

the upper stopper (14) is used for blocking a channel formed between the oil return inlet (41) and the oil return outlet (43); the lower stopper (15) is used for blocking a channel formed between the oil return inlet (41) and the discharge opening (42).

8. A motorcycle spill valve control system as claimed in claim 1, wherein: the oil return nozzle (21) is provided with a pressure gauge (10), and the oil inlet nozzle (22) is provided with a flowmeter (11).

9. A motorcycle spill valve control system as set forth in claim 1, wherein: the electric injection valve further comprises an overflow valve (12) which is arranged on a pipeline externally connected between the oil tank (1) and the electric injection valve body (3).