CN114964813A - A anti-pollution device is changed to fuel for evaporation test - Google Patents
A anti-pollution device is changed to fuel for evaporation test Download PDFInfo
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- CN114964813A CN114964813A CN202210589924.4A CN202210589924A CN114964813A CN 114964813 A CN114964813 A CN 114964813A CN 202210589924 A CN202210589924 A CN 202210589924A CN 114964813 A CN114964813 A CN 114964813A
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- oil
- oil gas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/021—T- or cross-pieces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The application relates to an anti-pollution device is changed to fuel for evaporation test relates to fuel car quality test technical field, includes: the fuel connector comprises a fuel rail joint used for being connected with a fuel rail, an oil pipe joint used for being connected with an oil pipe, and a self-locking quick-connection male joint communicated with the fuel rail joint and the oil pipe joint; the oil gas collector comprises an oil gas collecting cavity, the oil gas collecting cavity is internally connected with a self-locking quick-connection female connector, and one end of the oil gas collecting cavity is provided with a plug-in port inserted into the self-locking quick-connection male connector; the vacuum generator is provided with a gas outlet on the oil gas collecting cavity, the vacuum generator is communicated with the gas outlet through a gas circuit, and the vacuum generator adsorbs oil gas residues in the oil gas collecting cavity through the gas circuit. When this application is at the fuel of evacuation fuel tank, vacuum generator and oil gas collection cavity intercommunication to adsorb the oil gas residue in the oil gas collection cavity through the gas circuit. The test result error caused by fuel volatilization and scattering in the fuel replacement process in the evaporation test is avoided.
Description
Technical Field
The application relates to the technical field of fuel vehicle quality testing, in particular to a fuel replacement anti-pollution device for an evaporation test.
Background
As legislation becomes more stringent with regard to vehicle emissions, the operating requirements of vehicles in the course of relevant tests are also increasing. When the vehicle is used for a fuel evaporation emission test, the fuel is required to be replaced after a series of tests are carried out in a standard environment, and then the test is continued. The fuel oil in the oil tank is emptied at the quick insertion position of the engine oil rail, and the fuel oil in the engine oil rail and the atmospheric environment always have pressure difference, so that the fuel oil cannot be prevented from spilling in an engine compartment during relevant operation. In subsequent evaporation tests, adsorbed fuel residues in the cabin can increase the test error.
Disclosure of Invention
The embodiment of the application provides an anti-pollution device is changed to fuel for evaporation test to fuel easily spills in the engine compartment when solving among the correlation technique when the engine oil rail inserts the department soon and carries out the oil drainage in the oil tank, in the evaporation test, the problem that the adsorbed fuel residue can increase the test error in the cabin.
The embodiment of the application provides an anti-pollution device is changed to fuel for evaporation test, includes:
the fuel connector comprises a fuel rail joint for connecting with a fuel rail, an oil pipe joint for connecting with an oil pipe, and a self-locking quick-connection male joint for communicating the fuel rail joint and the oil pipe joint;
the oil gas collector comprises an oil gas collecting cavity, a self-locking quick-connection female connector is coaxially and movably connected in the oil gas collecting cavity, and one end of the oil gas collecting cavity is provided with a plug-in port inserted into the self-locking quick-connection male connector;
the vacuum generator is provided with a gas outlet on the oil gas collecting cavity and communicated with the gas outlet through a gas circuit, and the vacuum generator adsorbs oil gas residues in the oil gas collecting cavity through the gas circuit.
In some embodiments: the oil gas collector further comprises an oil drainage pipeline coaxially connected with the self-locking quick-connection female head, the oil drainage pipeline extends towards the outside of the oil gas collecting cavity, and a through hole connected with the oil drainage pipeline in a sliding mode is formed in one end, far away from the insertion port, of the oil gas collecting cavity.
In some embodiments: an annular groove is formed in the wall of the through hole, and a first rubber ring which is hermetically connected with the outer wall of the oil drain pipeline is arranged in the annular groove;
an annular groove is formed in the hole wall of the inserting port, and a second rubber ring in sealing connection with the outer wall of the self-locking quick-connection male connector is arranged in the annular groove.
In some embodiments: the oil gas collecting cavity comprises an air inlet cover and an air outlet cover which are coaxially connected with each other, and the air inlet cover and the air outlet cover are both of pipe body structures with two ends penetrating through;
the inserting port is positioned on the air inlet cover and at one end far away from the air outlet cover, and the through hole is positioned on the air outlet cover and at one end far away from the air inlet cover;
the gas outlet is positioned on the side wall of the gas outlet cover, and a gas pipe joint connected with a gas circuit is fixedly arranged on the gas outlet.
In some embodiments: the air inlet cover is provided with a plurality of air inlet holes at one end far away from the air outlet cover, the air inlet holes surround the periphery of the plug interface, the inner wall of the air inlet cover is provided with a plurality of air guide grooves, and the air guide grooves are respectively communicated with the air inlet holes.
In some embodiments: the inner diameter of the air outlet cover is larger than the outer diameter of the self-locking quick-connection female head, and an annular exhaust gap communicated with the air outlet is formed between the air outlet cover and the self-locking quick-connection female head.
In some embodiments: the inner wall of the air inlet cover is provided with a boss, the boss is positioned on one side far away from the air outlet cover, and the boss is used for pushing a movable sleeve of the self-locking quick-connection female head to unlock the self-locking quick-connection male head.
In some embodiments: the outer diameter of the air outlet cover is larger than that of the air inlet cover, one end of the air inlet cover is positioned in the air outlet cover, and the air outlet cover is connected with the air inlet cover in a sealing mode through threads.
In some embodiments: the oil discharge pipeline is connected with a fuel oil collecting container used for collecting fuel oil, and the vacuum generator is provided with an oil gas collecting container used for collecting oil gas.
In some embodiments: the self-locking quick-connection male head and the self-locking quick-connection female head are both provided with self-resetting plugs, and when the self-locking quick-connection male head and the self-locking quick-connection female head are disconnected, the self-resetting plugs are used for respectively plugging the self-locking quick-connection male head and the self-locking quick-connection female head.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a fuel replacement anti-pollution device for an evaporation test, which is provided with a fuel connector, wherein the fuel connector comprises a fuel rail joint for being connected with a fuel rail, a fuel pipe joint for being connected with a fuel pipe and a self-locking quick-connection male joint for communicating the fuel rail joint with the fuel pipe joint; the oil gas collector comprises an oil gas collecting cavity, a self-locking quick-connection female connector is coaxially and movably connected in the oil gas collecting cavity, and one end of the oil gas collecting cavity is provided with a plug-in port inserted into the self-locking quick-connection male connector; and the vacuum generator is provided with a gas outlet on the oil gas collecting cavity, is communicated with the gas outlet through a gas circuit and adsorbs oil gas residues in the oil gas collecting cavity through the gas circuit.
Therefore, the anti-pollution device is changed to fuel of this application utilizes the oil rail to connect with the oil rail, utilizes oil pipe joint and oil pipe connection, utilizes the auto-lock to connect soon male joint and oil gas collector's auto-lock to connect soon female joint, and the auto-lock connects soon female joint to be located oil gas collector's oil gas collection cavity. The self-locking quick-connection male head is inserted into the oil gas collecting cavity through the inserting port and connected with the self-locking quick-connection female head, and the self-locking quick-connection male head and the self-locking quick-connection female head are both located in the oil gas collector. When fuel is needed to be replaced, the fuel pump in the fuel tank can discharge the fuel to the fuel collecting container through the self-locking quick-connection male head and the self-locking quick-connection female head in sequence. When the fuel in the fuel tank is emptied, the vacuum generator is communicated with the oil gas collecting cavity and adsorbs oil gas residues in the oil gas collecting cavity through the gas path. The test result error caused by fuel volatilization and scattering in the fuel replacement process in the evaporation test is avoided.
The oil gas collector of anti-pollution device is changed to fuel still includes the oil drain pipeline with auto-lock quick-connect female head coaxial coupling, and the oil drain pipeline extends to the outside of oil gas collection cavity, and the one end that the interface was kept away from to the oil gas collection cavity is equipped with the through-hole of sliding connection oil drain pipeline, and the oil drain pipeline is arranged in discharging the fuel in the oil tank to the fuel collection container. The oil discharge pipeline is in sealing connection with the through hole of the oil gas collector through the first rubber ring, and the self-locking quick-connection male connector is in sealing connection with the plug-in port of the oil gas collector through the second rubber ring, so that a closed cavity is formed between the oil gas collection cavity and the oil discharge pipeline and between the self-locking quick-connection male connector, oil gas in the cavity is prevented from leaking, and the authenticity mixing accuracy of evaporation test data is improved.
The gas collection cavity of the anti-pollution device for replacing fuel oil in the embodiment of the application comprises an air inlet cover and an air outlet cover which are coaxially connected with each other, wherein the air inlet cover and the air outlet cover are both of pipe body structures with two ends penetrating through; the inserting port is positioned on the air inlet cover and positioned at one end far away from the air outlet cover, and the through hole is positioned on the air outlet cover and positioned at one end far away from the air inlet cover; the gas outlet is positioned on the side wall of the gas outlet cover, and a gas pipe joint connected with the gas circuit is fixedly arranged on the gas outlet. The oil gas collection cavity is composed of an air inlet cover and an air outlet cover which are of a split structure, the air inlet cover and the air outlet cover are detachably connected with each other, and the self-locking quick-connection female head is conveniently arranged in the cavity of the oil gas collection cavity. The gas outlet is positioned on the side wall of the gas outlet cover, a gas pipe connector connected with the gas circuit is fixedly arranged on the gas outlet, and the gas pipe connector is convenient to be connected with the gas circuit.
The anti-pollution device is changed to fuel's one end of keeping away from the air outlet cover on the air inlet cover of this application embodiment has seted up a plurality of inlet ports, and a plurality of inlet ports encircle around the interface, have seted up a plurality of air guide grooves on the inner wall of air inlet cover, and a plurality of air guide grooves communicate with each other with a plurality of inlet ports respectively. The inner diameter of the air outlet cover is larger than the outer diameter of the self-locking quick-connection female head, and an annular exhaust gap communicated with the air outlet is formed between the air outlet cover and the self-locking quick-connection female head. A plurality of air inlet holes on the air inlet cover and a plurality of air guide grooves are formed in the inner wall of the air inlet cover, an annular exhaust gap communicated with the air outlet is formed between the air outlet cover and the self-locking quick-connection female head, an air passage for adsorbing oil gas residues in the oil gas collection cavity is formed jointly, and oil gas in the oil gas collection cavity is adsorbed through the air passage and enters the vacuum generator.
The inner wall of the air inlet cover of the anti-pollution device for fuel oil replacement is provided with the boss, the boss is located on one side away from the air outlet cover, and the boss is used for pushing the movable sleeve of the self-locking quick-connection female head to unlock the self-locking quick-connection male head. The boss on the inner wall of the air inlet cover is used for pushing the movable sleeve of the self-locking quick-connection female head to unlock and lock the self-locking quick-connection male head, when the self-locking quick-connection male head needs to be unlocked and locked, the air inlet cover pushes the movable sleeve of the self-locking quick-connection female head along the axis direction of the self-locking quick-connection female head and towards the direction of the self-locking quick-connection female head, and the movable sleeve is convenient to insert the self-locking quick-connection male head into the self-locking quick-connection female head or separate the self-locking quick-connection male head from the self-locking quick-connection female head after being opened. One end of the air inlet cover is positioned in the air outlet cover, and the air outlet cover is connected with the air inlet cover in a sealing manner through threads, so that the air tightness between the air outlet cover and the air inlet cover is improved.
The anti-pollution device is changed to fuel's auto-lock meets public head and auto-lock and meets female head soon all be equipped with from the dead head, and after auto-lock meets public head and auto-lock and meets female head disconnection soon, from the dead head be used for respectively shutoff auto-lock connects public head and auto-lock and meets female head soon. The self-locking quick-connection male head and the self-locking quick-connection female head are both provided with self-resetting plugs, and when the self-locking quick-connection male head and the self-locking quick-connection female head are connected with each other, the self-locking quick-connection male head and the self-locking quick-connection female head are communicated with each other; after the self-locking quick-connection male head and the self-locking quick-connection female head are disconnected, the self-resetting plug is used for respectively plugging the self-locking quick-connection male head and the self-locking quick-connection female head, oil or oil gas in the self-locking quick-connection male head and the self-locking quick-connection female head is prevented from leaking out after the self-locking quick-connection male head and the self-locking quick-connection female head are disconnected, and the authenticity mixing accuracy of evaporation test data is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of a fuel connector according to an embodiment of the present application;
FIG. 2 is a schematic structural view of an oil and gas collector according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a vacuum generator according to an embodiment of the present application;
FIG. 4 is a cross-sectional structural view of an oil and gas collector of an embodiment of the present application;
fig. 5 is a structural sectional view of a fuel connector according to an embodiment of the present application.
Reference numerals:
1. a fuel connector; 2. an oil gas collector; 3. a vacuum generator; 4. an air inlet; 5. a gas guide groove; 6. an air intake cover; 7. an air outlet cover; 8. a self-locking quick-connection female head; 9. an oil discharge pipeline; 10. a gas pipe joint; 11. an oil rail joint; 12. an oil pipe joint; 13. self-locking quick-connecting male joint.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides an anti-pollution device is changed to fuel for evaporation test, and it can solve among the prior art when the engine oil rail inserts the department soon and carries out the oil in the oil tank fuel when the oil discharges the fuel easily unrestrained in the engine compartment, and in the evaporation test, the adsorbed fuel residue can increase the problem of test error in the cabin.
Referring to fig. 1 to 5, an embodiment of the present application provides a fuel replacement contamination prevention device for an evaporation test, including:
the fuel connector 1 comprises a fuel rail joint 11 used for being connected with a fuel rail, a fuel pipe joint 12 used for being connected with a fuel pipe and a self-locking quick-connection male joint 13 communicated with the fuel rail joint 11 and the fuel pipe joint 12, wherein the fuel rail joint 11, the fuel pipe joint 12 and the self-locking quick-connection male joint 13 form a three-way joint. The oil pipe joint 12 is communicated with an oil tank through an oil pipe, and fuel oil in the oil tank is injected into the oil pipe and the oil pipe joint 12 through an oil pump so as to supply oil to the oil rail joint 11 or the self-locking quick-connection male joint 13. When fuel oil needs to be replaced, the fuel oil in the oil tank is discharged into the fuel oil collecting container through the self-locking quick-connection male connector 13, and the risk of fuel oil spilling is avoided.
The oil gas collector 2, this oil gas collector 2 includes the oil gas collection cavity, and coaxial swing joint has the female head 8 of auto-lock fast joint in the oil gas collection cavity, offers the interface that inserts the male head 13 of auto-lock fast joint in the one end of oil gas collection cavity, and the male head 13 of auto-lock fast joint gets into in the oil gas collection cavity from the interface in order to dock with the female head 8 of auto-lock fast joint. The oil gas collecting cavity is coated on the peripheries of the self-locking quick-connection female head 8 and the self-locking quick-connection male head 13 so as to prevent oil gas at the joint of the self-locking quick-connection female head 8 and the self-locking quick-connection male head 13 from leaking to an evaporation test site.
The anti-pollution device is changed to fuel of this application embodiment utilizes oil rail joint 11 and oil rail to be connected, utilizes oil pipe joint 12 and oil pipe connection, utilizes auto-lock to connect soon male joint 13 and is connected with the auto-lock of oil gas collector 2 and connects soon female joint 8, and auto-lock connects soon female joint 8 to be located the oil gas collection cavity of oil gas collector 2. The self-locking quick-connection male head 13 is inserted into the oil gas collecting cavity through the inserting port and is connected with the self-locking quick-connection female head 8, and the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8 are both located in the oil gas collector 2.
When fuel is needed to be replaced, the fuel pump in the fuel tank can discharge the fuel to the fuel collecting container through the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8 in sequence. When the fuel in the fuel tank is emptied, the vacuum generator 3 is communicated with the oil gas collecting cavity and adsorbs oil gas residues in the oil gas collecting cavity through the gas path. The test result error caused by fuel volatilization and scattering in the fuel replacement process in the evaporation test is avoided.
In some alternative embodiments: referring to fig. 4, the embodiment of the application provides a fuel oil replacement anti-pollution device for an evaporation test, the oil gas collector 2 of the fuel oil replacement anti-pollution device further comprises an oil drainage pipeline 9 coaxially connected with a self-locking quick-connection female connector 8, the oil drainage pipeline 9 extends to the outside of the oil gas collection cavity, and one end, far away from a plugging port, of the oil gas collection cavity is provided with a through hole connected with the oil drainage pipeline 9 in a sliding mode. The drain line 9 is connected to a fuel collection container (not shown) for collecting fuel. An annular groove is formed in the wall of the through hole, and a first rubber ring which is connected with the outer wall of the oil drain pipeline 9 in a sealing mode is arranged in the annular groove. An annular groove is formed in the hole wall of the inserting port, and a second rubber ring which is in sealing connection with the outer wall of the self-locking quick-connection male connector 13 is arranged in the annular groove.
The oil gas collector of anti-pollution device is changed to fuel still includes and connects female head 8 coaxial coupling's oil drain line 9 soon with the auto-lock, and oil drain line 9 extends to the outside of oil gas collection cavity, and the one end that the interface was kept away from to the oil gas collection cavity is equipped with the through-hole of sliding connection oil drain line 9, and oil drain line 9 is used for discharging the fuel in the oil tank to the fuel collection container in. Through first rubber circle sealing connection between the through-hole of oil drain pipeline 9 and oil gas collector, through second rubber circle sealing connection between the bayonet socket of auto-lock quick-connect public head 13 and oil gas collector to form inclosed cavity between messenger's oil gas collection cavity and oil drain pipeline 9 and the auto-lock quick-connect public head 13, prevent that the oil gas in the cavity from leaking, improve the authenticity mixed accuracy of evaporation test data.
In some alternative embodiments: referring to fig. 4, the embodiment of the application provides a fuel replacement anti-pollution device for an evaporation test, an oil gas collection cavity of the fuel replacement anti-pollution device comprises an air inlet cover 6 and an air outlet cover 7 which are coaxially connected with each other, and the air inlet cover 6 and the air outlet cover 7 are both of pipe body structures with two ends penetrating through. The interface is located inlet cover 6 and is located the one end of keeping away from air outlet cover 7, and the through-hole is located outlet cover 7 and is located the one end of keeping away from inlet cover 6. The air outlet is positioned on the side wall of the air outlet cover 7, and an air pipe joint 10 connected with an air passage is fixedly arranged on the air outlet.
The gas collection cavity of the anti-pollution device for replacing fuel oil in the embodiment of the application comprises an air inlet cover 6 and an air outlet cover 7 which are coaxially connected with each other, wherein the air inlet cover 6 and the air outlet cover 7 are both of pipe body structures with two ends penetrating through; the interface is located inlet cover 6 and is located the one end of keeping away from air outlet cover 7, and the through-hole is located outlet cover 7 and is located the one end of keeping away from inlet cover 6. The air outlet is positioned on the side wall of the air outlet cover 7, and an air pipe joint 10 connected with an air passage is fixedly arranged on the air outlet. The oil gas collection cavity is composed of an air inlet cover 6 and an air outlet cover 7 which are of a split structure, the air inlet cover 6 and the air outlet cover 7 are detachably connected with each other, and a self-locking quick-connection female head 8 is conveniently arranged in the cavity of the oil gas collection cavity. The air outlet is positioned on the side wall of the air outlet cover 7, an air pipe joint 10 connected with the air passage is fixedly arranged on the air outlet, and the air pipe joint 10 is convenient to be connected with the air passage.
In some alternative embodiments: referring to fig. 4, the embodiment of the application provides a fuel replacement anti-pollution device for an evaporation test, a plurality of air inlets 4 are formed in one end, away from an air outlet cover 7, of an air inlet cover 6 of the fuel replacement anti-pollution device, and the plurality of air inlets 4 surround the periphery of an insertion port. A plurality of air guide grooves 5 are formed in the inner wall of the air inlet cover 6, the axis of each air guide groove 5 is parallel to the axis of the air inlet cover 6, and the air guide grooves 5 are communicated with the air inlet holes 4 respectively. The inner diameter of the air outlet cover 7 is larger than the outer diameter of the self-locking quick-connection female head 8, and an annular exhaust gap communicated with an air outlet is formed between the air outlet cover 7 and the self-locking quick-connection female head 8.
The one end of keeping away from air outlet cover 7 on air inlet cover 6 of anti-pollution device is changed to fuel of this application embodiment has seted up a plurality of inlet ports 4, and a plurality of inlet ports 4 encircle around the interface, have seted up a plurality of air guide grooves 5 on the inner wall of air inlet cover 6, and a plurality of air guide grooves 5 communicate with each other with a plurality of inlet ports 4 respectively. The inner diameter of the air outlet cover 7 is larger than the outer diameter of the self-locking quick-connection female head 8, and an annular exhaust gap communicated with the air outlet is formed between the air outlet cover 7 and the self-locking quick-connection female head 8. A plurality of air guide grooves 5 are formed in the inner walls of a plurality of air inlet holes 4 in the air inlet cover 6 and the air inlet cover 6, an air passage which absorbs oil gas residues in the oil gas collection cavity is formed between the air outlet cover 7 and the self-locking quick-connection female head 8 and forms an annular exhaust gap together, and oil gas in the oil gas collection cavity is absorbed into the vacuum generator 3 through the air passage.
In some alternative embodiments: referring to fig. 4, the embodiment of the present application provides a fuel replacement anti-pollution device for an evaporation test, a boss is arranged on an inner wall of an air inlet cover 6 of the fuel replacement anti-pollution device, the boss is located on one side away from an air outlet cover 7, and the boss is used for pushing a movable sleeve of a self-locking quick-connection female head 8 to unlock a self-locking quick-connection male head 13. The outer diameter of the air outlet cover 7 is larger than that of the air inlet cover 6, one end of the air inlet cover 6 is positioned in the air outlet cover 7, and the air outlet cover 7 is in sealing connection with the air inlet cover 6 through threads.
The inner wall of the air inlet cover 6 of the anti-pollution device for fuel oil replacement is provided with a boss, the boss is located on one side away from the air outlet cover 7, and the boss is used for pushing a movable sleeve of the self-locking quick-connection female head 8 to unlock the self-locking quick-connection male head 13. The boss on the inner wall of the air inlet cover 6 is used for pushing a movable sleeve of the self-locking quick-connection female head 8 to unlock and lock the self-locking quick-connection male head 13, when the self-locking quick-connection male head 13 needs to be unlocked and locked, the air inlet cover 6 pushes the movable sleeve of the self-locking quick-connection female head 8 along the axis direction of the self-locking quick-connection female head 8 and towards the direction of the self-locking quick-connection female head 8, the self-locking quick-connection male head 13 is conveniently inserted into the self-locking quick-connection female head 8 after the movable sleeve is opened, or the self-locking quick-connection male head 13 is separated from the self-locking quick-connection female head 8. One end of the air inlet cover 6 is positioned in the air outlet cover 7, and the air outlet cover 7 is in threaded sealing connection with the air inlet cover 6, so that the air tightness between the air outlet cover 7 and the air inlet cover 6 is improved.
In some alternative embodiments: referring to fig. 4 and 5, the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8 of the anti-pollution device for fuel replacement are provided with self-resetting plugs (not shown in the figures), and after the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8 are disconnected, the self-resetting plugs are used for respectively plugging the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8.
The self-locking quick-connection male head 13 and the self-locking quick-connection female head 8 of the anti-pollution device for replacing fuel oil are provided with self-resetting plugs, and when the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8 are disconnected, the self-resetting plugs are used for respectively plugging the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8. The self-locking quick-connection male head 13 and the self-locking quick-connection female head 8 are both provided with self-resetting plugs, and when the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8 are connected with each other, the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8 are communicated with each other.
After the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8 are disconnected, the self-resetting plug is used for respectively plugging the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8, so that oil or oil gas in the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8 is prevented from leaking out after the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8 are disconnected, and the authenticity mixing accuracy of evaporation test data is improved.
Principle of operation
The embodiment of the application provides a fuel replacement anti-pollution device for an evaporation test, and the fuel replacement anti-pollution device is provided with a fuel connector 1, wherein the fuel connector 1 comprises a fuel rail joint 11 for being connected with a fuel rail, a fuel pipe joint 12 for being connected with a fuel pipe, and a self-locking quick-connection male joint 13 for communicating the fuel rail joint and the fuel pipe joint; the oil gas collector 2 comprises an oil gas collecting cavity, a self-locking quick-connection female joint 8 is coaxially and movably connected in the oil gas collecting cavity, and one end of the oil gas collecting cavity is provided with a plug-in port inserted into the self-locking quick-connection male joint 13; and the vacuum generator 3 is provided with a gas outlet on the oil gas collecting cavity, the vacuum generator 3 is communicated with the gas outlet through a gas circuit, and the vacuum generator 3 adsorbs oil gas residues in the oil gas collecting cavity through the gas circuit.
Therefore, the anti-pollution device is changed to fuel of this application utilizes oil rail joint 11 to be connected with the oil rail, utilizes oil pipe joint 12 and oil pipe connection, utilizes auto-lock to connect soon male joint 13 and is connected with oil gas collector's auto-lock and connects soon female joint 8, and auto-lock connects soon female joint 8 to be located oil gas collector's oil gas collection cavity. The self-locking quick-connection male head 13 is inserted into the oil gas collecting cavity through the inserting port and is connected with the self-locking quick-connection female head 8, and the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8 are both located in the oil gas collector.
When fuel is needed to be replaced, the fuel pump in the fuel tank can discharge the fuel to the fuel collecting container through the self-locking quick-connection male head 13 and the self-locking quick-connection female head 8 in sequence. When the fuel in the fuel tank is emptied, the vacuum generator 3 is communicated with the oil gas collection cavity and adsorbs oil gas residues in the oil gas collection cavity through the gas path. The test result error caused by fuel volatilization and scattering in the fuel replacement process in the evaporation test is avoided.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description is only an example of the present application, and is provided to enable any person skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A fuel replacement anti-pollution device for evaporation test, its characterized in that includes:
the fuel connector (1) comprises a fuel rail joint (11) connected with a fuel rail, a fuel pipe joint (12) connected with a fuel pipe and a self-locking quick-connection male joint (13) communicated with the fuel rail joint (11) and the fuel pipe joint (12);
the oil gas collector (2) comprises an oil gas collecting cavity, a self-locking quick-connection female head (8) is coaxially and movably connected in the oil gas collecting cavity, and one end of the oil gas collecting cavity is provided with a plug-in port inserted into a self-locking quick-connection male head (13);
the oil gas collecting cavity is provided with a gas outlet, the vacuum generator (3) is communicated with the gas outlet through a gas circuit, and the vacuum generator (3) adsorbs oil gas residues in the oil gas collecting cavity through a gas circuit.
2. The fuel replacement contamination prevention device for evaporation test according to claim 1, wherein:
the oil gas collector further comprises an oil drainage pipeline (9) coaxially connected with the self-locking quick-connection female head (8), the oil drainage pipeline (9) extends to the outside of the oil gas collecting cavity, and a through hole connected with the oil drainage pipeline (9) in a sliding mode is formed in one end, far away from the insertion port, of the oil gas collecting cavity.
3. The fuel replacement contamination prevention device for evaporation test according to claim 2, wherein:
an annular groove is formed in the wall of the through hole, and a first rubber ring which is hermetically connected with the outer wall of the oil drain pipeline (9) is arranged in the annular groove;
an annular groove is formed in the hole wall of the inserting port, and a second rubber ring which is connected with the outer wall of the self-locking quick-connection male connector (13) in a sealing mode is arranged in the annular groove.
4. A fuel replacement contamination prevention device for evaporation test according to claim 2, wherein:
the oil gas collection cavity comprises an air inlet cover (6) and an air outlet cover (7) which are coaxially connected with each other, and the air inlet cover (6) and the air outlet cover (7) are both of pipe body structures with two ends penetrating through;
the inserting port is positioned on the air inlet cover (6) and at one end far away from the air outlet cover (7), and the through hole is positioned on the air outlet cover (7) and at one end far away from the air inlet cover (6);
the air outlet is positioned on the side wall of the air outlet cover (7), and an air pipe joint (10) connected with an air passage is fixedly arranged on the air outlet.
5. A fuel replacement contamination prevention device for evaporation test according to claim 4, wherein:
a plurality of air inlet holes (4) are formed in one end, far away from the air outlet cover (7), of the air inlet cover (6), the air inlet holes (4) are surrounded on the periphery of the inserting port, a plurality of air guide grooves (5) are formed in the inner wall of the air inlet cover (6), and the air guide grooves (5) are communicated with the air inlet holes (4) respectively.
6. A fuel replacement contamination prevention device for evaporation test according to claim 4, wherein:
the inner diameter of the air outlet cover (7) is larger than the outer diameter of the self-locking quick-connection female head (8), and an annular exhaust gap communicated with the air outlet is formed between the air outlet cover (7) and the self-locking quick-connection female head (8).
7. A fuel replacement contamination prevention device for evaporation test according to claim 4, wherein:
the inner wall of the air inlet cover (6) is provided with a boss, the boss is positioned on one side far away from the air outlet cover (7), and the boss is used for pushing a movable sleeve of the self-locking quick-connection female head (8) to unlock the self-locking quick-connection male head (13).
8. A fuel replacement contamination prevention device for evaporation test according to claim 4, wherein:
the outer diameter of the air outlet cover (7) is larger than that of the air inlet cover (6), one end of the air inlet cover (6) is located in the air outlet cover (7), and the air outlet cover (7) is connected with the air inlet cover (6) in a sealing mode through threads.
9. A fuel replacement contamination prevention device for evaporation test according to claim 2, wherein:
the oil discharge pipeline (9) is connected with a fuel oil collecting container for collecting fuel oil, and the vacuum generator (3) is provided with an oil gas collecting container for collecting oil gas.
10. A fuel replacement contamination prevention device for evaporation test according to claim 1, wherein:
the self-locking quick-connection male head (13) and the self-locking quick-connection female head (8) are both provided with self-resetting plugs, and when the self-locking quick-connection male head (13) and the self-locking quick-connection female head (8) are disconnected, the self-resetting plugs are used for respectively plugging the self-locking quick-connection male head (13) and the self-locking quick-connection female head (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210589924.4A CN114964813A (en) | 2022-05-26 | 2022-05-26 | A anti-pollution device is changed to fuel for evaporation test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210589924.4A CN114964813A (en) | 2022-05-26 | 2022-05-26 | A anti-pollution device is changed to fuel for evaporation test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114964813A true CN114964813A (en) | 2022-08-30 |
Family
ID=82955205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210589924.4A Pending CN114964813A (en) | 2022-05-26 | 2022-05-26 | A anti-pollution device is changed to fuel for evaporation test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114964813A (en) |
-
2022
- 2022-05-26 CN CN202210589924.4A patent/CN114964813A/en active Pending
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