CN114135415A - Method and structure for monitoring water leakage and air leakage inside cylinder cover in real time during operation - Google Patents
Method and structure for monitoring water leakage and air leakage inside cylinder cover in real time during operation Download PDFInfo
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- CN114135415A CN114135415A CN202111446822.9A CN202111446822A CN114135415A CN 114135415 A CN114135415 A CN 114135415A CN 202111446822 A CN202111446822 A CN 202111446822A CN 114135415 A CN114135415 A CN 114135415A
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- oil sprayer
- connecting rod
- oil
- leakage
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 238000012544 monitoring process Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000003921 oil Substances 0.000 claims abstract description 169
- 238000007789 sealing Methods 0.000 claims abstract description 92
- 239000010705 motor oil Substances 0.000 claims abstract description 15
- 239000000295 fuel oil Substances 0.000 claims abstract description 12
- 239000000446 fuel Substances 0.000 claims description 42
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 19
- 229910052802 copper Inorganic materials 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- 239000002737 fuel gas Substances 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 238000010790 dilution Methods 0.000 abstract description 16
- 239000012895 dilution Substances 0.000 abstract description 16
- 239000000498 cooling water Substances 0.000 abstract description 10
- 238000002485 combustion reaction Methods 0.000 abstract description 7
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/242—Arrangement of spark plugs or injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/085—Safety, indicating, or supervising devices with sensors measuring combustion processes, e.g. knocking, pressure, ionization, combustion flame
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/002—Arrangements of sealings in combustion engines involving cylinder heads
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a method and a structure for monitoring water leakage and air leakage inside a cylinder cover in real time during operation, and belongs to the technical field of real-time monitoring. Problems such as fuel oil dilution, engine oil dilution, abnormal abrasion of moving parts, high crankcase pressure, insufficient output power and the like can be caused by water leakage and air leakage in the cylinder cover, and a large amount of cooling water can enter a combustion chamber to cause water hammer; due to serious faults of cylinder pulling, tile rolling and the like caused by insufficient viscosity after engine oil dilution, the conditions of water leakage caused by sealing failure of an oil sprayer sheath and a cylinder cover and gas leakage caused by sealing failure of the oil sprayer and the cylinder cover are found as soon as possible in real time, a user is reminded to maintain and repair as soon as possible, the problem that the diesel engine is damaged greatly due to the conditions of water leakage and gas leakage of the cylinder cover is reduced, and the great property loss of the user is avoided.
Description
Technical Field
The invention relates to the technical field of real-time monitoring, in particular to a method and a structure for monitoring water leakage and air leakage in a cylinder cover in real time during operation.
Background
The cylinder head is one of the important parts of the diesel engine, and the main function of the cylinder head is to form a working space of a piston by matching with a cylinder, and meanwhile, the cylinder head needs to provide a seating position for cooling, lubricating, air intake and exhaust of the diesel engine and a fuel injector. Because the cooling water cavity has a complex structure and is heated extremely unevenly in the working process, the leakage of cooling water of the cylinder cover and the leakage of gas in the combustion chamber occur sometimes. The water leakage of the cylinder cover can cause the problems of white smoke emission, too fast cooling water drop, engine oil dilution, fuel oil dilution and the like of the diesel engine, and serious accidents such as water hammer and the like caused by a large amount of cooling water entering a combustion chamber can also occur seriously; the problems of corrosion of the oil sprayer, damage of a sealing ring of a protective sleeve of the oil sprayer, insufficient power of a diesel engine and the like can be caused by air leakage of the cylinder cover. In the water leakage and air leakage faults of the cylinder cover, the water leakage caused by the sealing failure of the oil sprayer sheath and the cylinder cover and the gas leakage caused by the sealing failure of the oil sprayer and the cylinder cover are the most common, so that the water leakage and air leakage conditions are found as early as possible and in real time, and the method is very important.
Because the structure of the cooling water cavity of the cylinder cover is complex and the heating is extremely uneven in the working process, the leakage of the cooling water of the cylinder cover and the leakage of the gas in the combustion chamber occur sometimes. In the water leakage and air leakage faults of the cylinder cover, the water leakage caused by the sealing failure of the oil sprayer sheath and the cylinder cover and the gas leakage caused by the sealing failure of the oil sprayer and the cylinder cover are the most common faults. If the complaint problem can not be found in time, the problems such as fuel oil dilution, engine oil dilution, abnormal abrasion of a moving part, insufficient output power and the like can be caused, and a large amount of cooling water can enter a combustion chamber to generate water hammer; serious faults such as cylinder pulling, tile rolling and the like caused by insufficient viscosity after engine oil dilution.
According to the method and the structure for monitoring water leakage and air leakage in the cylinder cover in real time during operation, the water leakage and air leakage conditions are found as early as possible in real time, so that a user can conveniently maintain and repair the cylinder cover as soon as possible, and the problem that the diesel engine is damaged greatly due to the water leakage and air leakage conditions of the cylinder cover is reduced.
Disclosure of Invention
A method for monitoring water leakage and air leakage in a cylinder cover in real time during operation comprises an oil sprayer, the cylinder cover, an O-shaped sealing ring, an oil sprayer sheath, a sealing copper gasket and an oil sprayer connecting rod;
preferably, an oil injector connecting rod is inserted into one side of the cylinder cover, an inner cavity of the oil injector connecting rod penetrates through the side end of the oil injector, an O-shaped sealing ring is arranged on one side of the cylinder cover, a sealing copper gasket is arranged at the bottom end of the oil injector, and an oil injector connecting rod is arranged on one side of the oil injector.
Preferably, the oil injector connecting rod is of a double-layer tubular structure and is a connecting rod inner tube and a connecting rod outer tube respectively, the connecting rod inner tube penetrates through an inner cavity of the oil injector, and the connecting rod outer tube is a channel for guiding oil returned by the oil injector out of the cylinder cover.
Preferably, the oil injector, the cylinder cover, the oil injector O-shaped sealing ring, the oil injector sheath and the oil injector connecting rod form a collecting cavity for water leakage and air leakage of the cylinder cover, and the outer end of the cylinder cover is provided with an inner cavity which penetrates through the cylinder cover in an open state.
Preferably, the lower end of the cylinder cover is provided with an O-shaped sealing ring, the other side of the O-shaped sealing ring is attached to a fuel injector jacket, the upper end of the fuel injector jacket is provided with two groups of O-shaped sealing rings, and the lower part of the fuel injector jacket is sealed through threads.
Preferably, two groups of O-shaped sealing rings are arranged between the extension rod inner pipe and the extension rod outer pipe.
Preferably, the fuel injector connecting rod is arranged on one side of the fuel injector, and four groups of long round holes are processed on the circumference of the outer pipe of the connecting rod at positions corresponding to the fuel injector oil return holes.
Preferably, four groups of long round holes are processed on the circumferences of the oil sprayer connecting rod and the connecting rod outer pipe, and hinged joints are installed at positions corresponding to the long round holes.
Preferably, an oil injector connecting rod is installed on the side end face of the oil injector and the side end face of the cylinder cover, the upper end of the oil injector is sealed through an O-shaped sealing ring), the lower end of the oil injector is sealed through a sealing copper gasket), and the oil injector connecting rod is connected with the cylinder cover through a connecting rod sealing ring).
Preferably, two groups of hinged sealing rings are used for sealing between the outer pipe of the connecting rod and the hinged joint, and the clamping ring is used for fixing the hinged joint at the axial position of the oil injector connecting rod.
In order to better show a method for monitoring water leakage and air leakage inside a cylinder cover in real time during operation, the embodiment provides a method for monitoring water leakage and air leakage inside a cylinder cover in real time during operation, which comprises the following steps:
the invention provides another technical scheme that: the method for monitoring water leakage and air leakage in the cylinder cover in real time during operation comprises the following steps:
s1: when the cylinder cover is cast, a casting hole which can be inserted into a connecting rod of an oil sprayer is reserved and is directly communicated with an oil sprayer mounting hole;
s2: the oil injector connecting rod is actually a double-layer oil pipe structure, the inner layer pipe is a channel for leading fuel oil conveyed by an external oil injection pump to an oil injector, and the outer layer pipe is a channel for leading the return oil of the oil injector out of a cylinder cover. The oil injector, the cylinder cover, the oil injector O-shaped sealing ring, the oil injector sheath and the oil injector connecting rod form a collecting cavity for water leakage and air leakage of the cylinder cover, namely a part indicated by a grid line in the figure;
s3: the outer part of the cylinder cover is provided with a detection hole or an alarm hole which is always in an open state and is communicated with a collecting cavity for water leakage and air leakage of the cylinder cover. The monitoring hole is not required to be connected with any sensor, and the problem of water leakage or air leakage in the cylinder head can be judged only by observing whether fluid liquid or air leaks out of the cylinder head;
s4: when the diesel engine runs, the water leakage and air leakage monitoring holes of the cylinder cover are observed by eye, if no fluid leaks, the normal sealing of the cylinder cover fuel injector sheath and the fuel injector sealing copper gasket is indicated; if water or fuel gas leaks from the monitoring hole, the problem of sealing failure of an oil sprayer protective sleeve or an oil sprayer sealing copper gasket 5 appears in the cylinder cover, if engine oil leaks from the monitoring hole, an O-shaped sealing ring on the upper part of the oil sprayer is damaged, and the engine oil on the lubricating valve system and other parts on the upper part of the cylinder cover flows into a collecting cavity.
Compared with the prior art, the invention has the advantages that:
in the operation of the diesel engine, whether a monitoring hole (or an alarm hole) outside a cylinder head of the diesel engine leaks or not can be observed visually, and the water leakage caused by the sealing failure of an oil sprayer sheath and the cylinder head inside the cylinder head and the air leakage caused by the sealing failure of the oil sprayer and the cylinder head can be monitored indirectly in real time.
And casting a mounting hole of the connecting rod of the oil sprayer in the cylinder cover, and communicating the mounting hole of the oil sprayer with the mounting hole of the oil sprayer. The hole integrates two functions, is used for installing the connecting rod of the oil injector, and can form a structure of a leakage collecting cavity.
The connecting rod of the oil sprayer is of a double-layer pipe structure, integrates a fuel oil inlet and return oil passage, is completely isolated from an external cylinder cover after being inserted into the oil sprayer, and can avoid the problems of fuel oil dilution, fuel tank pollution and the like caused by the fact that external media are mixed into the oil sprayer for returning oil.
Problems such as fuel oil dilution, engine oil dilution, abnormal abrasion of moving parts, high crankcase pressure, insufficient output power and the like can be caused by water leakage and air leakage in the cylinder cover, and a large amount of cooling water can enter a combustion chamber to cause water hammer; due to serious faults of cylinder pulling, tile rolling and the like caused by insufficient viscosity after engine oil dilution, the conditions of water leakage caused by sealing failure of an oil sprayer sheath and a cylinder cover and gas leakage caused by sealing failure of the oil sprayer and the cylinder cover are found as soon as possible in real time, a user is reminded to maintain and repair as soon as possible, the problem that the diesel engine is damaged greatly due to the conditions of water leakage and gas leakage of the cylinder cover is reduced, and the great property loss of the user is avoided.
Drawings
FIG. 1 is a schematic structural diagram of the present invention for real-time monitoring of water and gas leakage inside a cylinder head during operation;
FIG. 2 is a schematic view of an assembly of a fuel injector and a connecting rod of a structure for monitoring water leakage and gas leakage inside a cylinder head in real time during operation according to the present invention;
FIG. 3 is a schematic view of the assembly of the fuel injector and the connecting rod of the structure for monitoring water leakage and gas leakage inside the cylinder head in real time during operation according to the present invention;
FIG. 4 is a partial enlarged view of a structure fuel injector and a connecting rod for monitoring water leakage and gas leakage inside a cylinder head in real time during operation according to the present invention;
FIG. 5 is a schematic sealing diagram of the cylinder head assembly and the fuel injector assembly according to the present invention, which is used for monitoring water leakage and gas leakage inside the cylinder head in real time during operation.
The reference numbers in the figures illustrate: 1. an oil injector; 2. a cylinder head; 3. an O-shaped sealing ring; 4. a fuel injector jacket; 5. sealing the copper gasket; 6. a fuel injector extension rod; 61. connecting the rod inner pipe; 62. connecting the outer pipe; 7. sealing the copper gasket; 8. a hinge joint; 9. the sealing ring is hinged; 10. a snap ring.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through an intermediary, or the communication between the two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-5, the present invention provides a technical solution:
a method for monitoring water leakage and air leakage inside a cylinder cover in real time during operation comprises an oil sprayer 1, a cylinder cover 2, an O-shaped sealing ring 3, an oil sprayer sheath 4, a sealing copper gasket 5 and an oil sprayer connecting rod 6, wherein the oil sprayer connecting rod 6 is arranged on one side of the cylinder cover 2 in an inserting mode, the inner cavity of the oil sprayer connecting rod 6 penetrates through the side end of the oil sprayer 1, the O-shaped sealing ring 3 is arranged on one side of the cylinder cover 2, the sealing copper gasket 5 is arranged at the bottom end of the oil sprayer 1, the oil sprayer connecting rod 6 is arranged on one side of the oil sprayer 1, the oil sprayer connecting rod 6 is of a double-layer tubular structure and is respectively a connecting rod inner pipe 61 and an outer pipe 62, the connecting rod inner pipe 61 penetrates through the inner cavity of the oil sprayer 1, the connecting rod outer pipe 62 is a channel for guiding oil return of the oil sprayer 1 out of the cylinder cover 2, and the oil sprayer 1, the cylinder cover 2, the oil sprayer O-shaped sealing ring 3, the oil sprayer sheath 4 and the oil sprayer connecting rod 6 form a water leakage and air cylinder cover together, The gas leakage collecting cavity is characterized in that the outer end of the cylinder cover 2 is provided with an inner cavity which penetrates through the cylinder cover 2 in an open state, the lower end of the cylinder cover 1 is provided with an O-shaped sealing ring 2, the other side of the O-shaped sealing ring 2 is attached to a fuel injector jacket 4, the upper end of the fuel injector jacket 4 is provided with two groups of O-shaped sealing rings 2, the lower part of the fuel injector jacket 4 is sealed in a threaded manner, the two groups of O-shaped sealing rings 2 are arranged between a connecting rod inner pipe 61 and a connecting rod outer pipe 62, a fuel injector connecting rod 6 is arranged on one side of the fuel injector 1, four groups of long round holes are processed on the circumference of the connecting rod outer pipe 62 corresponding to oil return holes of the fuel injector 1, four groups of long round holes are processed on the circumference of the fuel injector connecting rod 6 and the connecting rod outer pipe 62, a hinge joint 8 is arranged on the position corresponding to the long round holes, the fuel injector connecting rod 6 is arranged on the side end surface of the fuel injector 2 and the cylinder cover 2, and the upper end of the fuel injector 1 is sealed through the O-shaped sealing ring 3), the lower end of the oil sprayer 1 is sealed by a sealing copper gasket 7), the oil sprayer connecting rod 6 is connected with the cylinder cover 1 through a connecting rod sealing ring 5), two groups of hinged sealing rings 9 are used for sealing between the connecting rod outer pipe 62 and the hinged joint 8, and the hinged joint 8 is fixed at the axial position of the oil sprayer connecting rod 6 by the clamping ring 10.
As shown in fig. 2, the cylinder head assembly is mainly composed of a cylinder head 1, an injector jacket O-ring 2 and an injector jacket 3. When the cylinder cover 1 is cast, a mounting hole of a connecting rod of an oil sprayer is reserved and is directly connected with a mounting hole of the oil sprayer. The sealing mode of cylinder head and sprayer sheath is diversified, and what this scheme adopted is: two O-shaped sealing rings are arranged on the upper portion of the sheath, and the lower portion of the sheath is sealed by adding a sealant through threads.
As shown in fig. 3, the fuel injector connecting rod is a double-layer pipe design and is divided into a connecting rod inner pipe 61 and a connecting rod outer pipe 62; 2 sealing rings 2 are arranged between the inner pipe of the extension rod and the outer pipe of the extension rod to play a role in supporting and sealing; 4-6 long round holes are processed on the circumference of the outer pipe at positions corresponding to oil return holes of the oil injector at the side of the connecting rod close to the oil injector, so that the oil return of the oil injector can flow into a space between the inner pipe and the outer pipe of the connecting rod; connecting the oil inlet side of the oil injection pump with a rod, machining 4-6 long round holes on the circumference of the outer pipe, and installing a hinge joint 8 at a position corresponding to the long round holes; 2 sealing rings 7 are used for sealing between the outer pipe and the hinged joint; finally, the axial position of the hinged joint on the extension rod is fixed by using a clamping ring 6. And the connecting rod is provided with threads on the side of the oil sprayer and is in threaded connection with the oil sprayer. Thus, the connecting rod inner pipe is used for conveying oil from the oil injector to the oil injector; the return oil in the oil sprayer can be discharged through the gap between the two layers of pipes of the connecting rod and the hinged joint finally.
As shown in fig. 4, after the fuel injector 2 is installed, the fuel injector connecting rod 6 is installed from the side surface of the cylinder head 1, the upper part of the fuel injector is sealed by the fuel injector O-shaped sealing ring 2, and the lower part of the fuel injector is sealed by the sealing copper gasket 4; the connecting rod sealing ring 5 is used for sealing the assembly space of the connecting rod and the cylinder cover, a cavity is formed between the cylinder cover assembly and the fuel injector and connecting rod assembly, and a hole (a cylinder cover water leakage and gas leakage monitoring hole) which is always in an open state is formed outside the cylinder cover and is communicated with the cavity. When the diesel engine runs, if water or fuel gas leaks from the hole, the hole indicates that the hole is inside the cylinder cover, the problem of sealing failure of an oil injector sheath or an oil injector sealing copper gasket occurs.
In order to better show a method for monitoring water leakage and air leakage inside a cylinder cover in real time during operation, the embodiment provides a method for monitoring water leakage and air leakage inside a cylinder cover in real time during operation, which comprises the following steps:
s1: when the cylinder cover 2 is cast, a casting hole which can be inserted into the oil sprayer connecting rod 6 is reserved and is directly communicated with an oil sprayer mounting hole;
s2: the oil injector connecting rod 6 is actually a double-layer oil pipe structure, the inner layer pipe is a channel for leading fuel oil conveyed by an external oil injection pump to an oil injector, and the outer layer pipe is a channel for leading the return oil of the oil injector out of a cylinder cover. The oil injector 1, the cylinder cover 2, the oil injector O-shaped sealing ring 3, the oil injector sheath 4 and the oil injector connecting rod 6 together form a collecting cavity for water leakage and air leakage of the cylinder cover, namely a part indicated by a grid line in fig. 4;
s3: the outer part of the cylinder cover is provided with a detection hole or an alarm hole which is always in an open state and is communicated with a collecting cavity for water leakage and air leakage of the cylinder cover. The monitoring hole is not required to be connected with any sensor, and the problem of water leakage or air leakage in the cylinder head can be judged only by observing whether fluid liquid or air leaks out of the cylinder head;
s4: when the diesel engine runs, the water leakage and air leakage monitoring holes of the cylinder cover are observed by eye, if no fluid leaks, the normal sealing of the cylinder cover fuel injector sheath and the fuel injector sealing copper gasket is indicated; if water or fuel gas leaks from the monitoring hole, the problem of sealing failure of the oil injector protective sleeve 4 or the oil injector sealing copper gasket 5 appears in the cylinder head, if engine oil leaks from the monitoring hole, the O-shaped sealing ring 3 on the upper part of the oil injector is damaged, and the engine oil on the lubricating valve system and the like on the upper part of the cylinder head flows into the collecting cavity.
In the operation of the diesel engine, whether a monitoring hole (or an alarm hole) outside a cylinder head of the diesel engine leaks or not can be observed visually, the water leakage caused by the sealing failure of an oil sprayer sheath and the cylinder head inside the cylinder head and the air leakage caused by the sealing failure of the oil sprayer and the cylinder head can be monitored indirectly in real time, and a mounting hole of a connecting rod of the oil sprayer is cast in the cylinder head and is communicated with the mounting hole of the oil sprayer. The hole integrates two functions, is used for installing an oil sprayer connecting rod and can form a structure of a leakage collecting cavity, the oil sprayer connecting rod is of a double-layer pipe structure, integrates a fuel oil inlet and return passage and is completely isolated from an external cylinder cover after being inserted into an oil sprayer, the problems of fuel oil dilution, fuel tank pollution and the like caused by the fact that external media are mixed into the oil sprayer for returning oil can not occur, the problems of fuel oil dilution, engine oil dilution, abnormal abrasion of moving parts, high crankcase pressure, insufficient output power and the like caused by the situation of water leakage and air leakage in the cylinder cover can occur, and a large amount of cooling water can enter a combustion chamber to generate water hammer seriously; due to serious faults of cylinder pulling, tile rolling and the like caused by insufficient viscosity after engine oil dilution, the conditions of water leakage caused by sealing failure of an oil sprayer sheath and a cylinder cover and gas leakage caused by sealing failure of the oil sprayer and the cylinder cover are found as soon as possible in real time, a user is reminded to maintain and repair as soon as possible, the problem that the diesel engine is damaged greatly due to the conditions of water leakage and gas leakage of the cylinder cover is reduced, and the great property loss of the user is avoided.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a structure that inside water leakage of real-time supervision cylinder head in service, gas leakage which characterized in that: the oil sprayer comprises an oil sprayer (1), a cylinder cover (2), an O-shaped sealing ring (3), an oil sprayer sheath (4), a sealing copper gasket (5) and an oil sprayer connecting rod (6);
the oil sprayer is characterized in that an oil sprayer connecting rod (6) is arranged on one side of the cylinder cover (2) in a penetrating mode, the inner cavity of the oil sprayer connecting rod (6) penetrates through the side end of the oil sprayer (1), an O-shaped sealing ring (3) is arranged on one side of the cylinder cover (2), a sealing copper gasket (5) is arranged at the bottom end of the oil sprayer (1), and the oil sprayer connecting rod (6) is arranged on one side of the oil sprayer (1).
2. The structure for monitoring water leakage and air leakage in the cylinder cover in real time during operation according to claim 1, wherein: the oil sprayer connecting rod (6) is of a double-layer tubular structure and is respectively a connecting rod inner tube (61) and a connecting rod outer tube (62), the connecting rod inner tube (61) penetrates through an inner cavity of the oil sprayer (1), and the connecting rod outer tube (62) is a channel for guiding oil returned by the oil sprayer (1) out of the cylinder cover (2).
3. The structure for monitoring water leakage and air leakage in the cylinder cover in real time during operation according to claim 1, wherein: the oil sprayer (1), the cylinder cover (2), the oil sprayer O-shaped sealing ring (3), the oil sprayer protective sleeve (4) and the oil sprayer connecting rod (6) jointly form a collecting cavity for water leakage and air leakage of the cylinder cover, and the outer end of the cylinder cover (2) is provided with an inner cavity which penetrates through the cylinder cover (2) in an open state.
4. The structure for monitoring water leakage and air leakage in the cylinder cover in real time during operation according to claim 1, wherein: the lower end of the cylinder cover (1) is provided with O-shaped sealing rings (2), the other sides of the O-shaped sealing rings (2) are attached to a fuel injector jacket (4), the upper end of the fuel injector jacket (4) is provided with two groups of O-shaped sealing rings (2), and the lower portion of the fuel injector jacket (4) is sealed through threads.
5. The structure for monitoring water leakage and air leakage in the cylinder cover in real time during operation according to claim 1, wherein: two groups of O-shaped sealing rings (2) are arranged between the extension rod inner pipe (61) and the extension rod outer pipe (62).
6. The structure for monitoring water leakage and air leakage in the cylinder cover in real time during operation according to claim 1, wherein: the fuel injector connecting rod (6) is arranged on one side of the fuel injector (1), and four groups of long round holes are processed on the circumference of the connecting rod outer pipe (62) at positions corresponding to the oil return holes of the fuel injector (1).
7. The structure for monitoring water leakage and air leakage in the cylinder cover in real time during operation according to claim 1, wherein: four groups of long round holes are processed on the circumferences of the oil sprayer connecting rod (6) and the connecting rod outer pipe (62), and a hinged joint (8) is installed at the position corresponding to the long round holes.
8. The structure for monitoring water leakage and air leakage in the cylinder cover in real time during operation according to claim 1, wherein: an oil sprayer connecting rod (6) is installed on the side end faces of the oil sprayer (2) and the cylinder cover (2), the upper end of the oil sprayer (1) is sealed through an O-shaped sealing ring (3), the lower end of the oil sprayer (1) is sealed through a sealing copper gasket (7), and the oil sprayer connecting rod (6) is connected with the cylinder cover (1) through a connecting rod sealing ring (5).
9. The structure for monitoring water leakage and air leakage in the cylinder cover in real time during operation according to claim 2, wherein: two groups of hinged sealing rings (9) are used for sealing between the connecting rod outer pipe (62) and the hinged joint (8), and the clamping ring (10) is used for fixing the axial position of the hinged joint (8) on the oil injector connecting rod (6).
10. A method for monitoring water leakage and air leakage inside a cylinder head in real time during operation according to any one of claims 1 to 9, wherein: the method comprises the following steps:
s1: when the cylinder cover (2) is cast, a casting hole which can be inserted into a connecting rod (6) of an oil sprayer is reserved and is directly communicated with an oil sprayer mounting hole;
s2: the oil sprayer connecting rod (6) is actually a double-layer oil pipe structure, the inner layer pipe is a channel for leading fuel oil conveyed by an external oil spraying pump to an oil sprayer, the outer layer pipe is a channel for leading the return oil of the oil sprayer out of a cylinder cover, and the oil sprayer (1), the cylinder cover (2), an oil sprayer O-shaped sealing ring (3), an oil sprayer sheath (4) and the oil sprayer connecting rod (6) jointly form a collecting cavity for water leakage and air leakage of the cylinder cover, namely a part indicated by a grid line in figure 4;
s3: the cylinder head is provided with a detection hole (or an alarm hole) which is always in an open state and is communicated with a collecting cavity of water leakage and air leakage of the cylinder head, the monitoring hole is not required to be connected with any sensor, and the problem of water leakage or air leakage in the cylinder head can be judged only by observing whether fluid (liquid and gas) leaks out of the cylinder head;
s4: when the diesel engine runs, the water leakage and air leakage monitoring holes of the cylinder cover are observed by eye, if no fluid leaks, the normal sealing of the cylinder cover fuel injector sheath and the fuel injector sealing copper gasket is indicated; if water or fuel gas leaks from the monitoring hole, the problem of sealing failure of an oil sprayer protective sleeve (4) or an oil sprayer sealing copper gasket (5) is shown in the cylinder cover, if engine oil leaks from the monitoring hole, an O-shaped sealing ring (3) on the upper portion of the oil sprayer is damaged, and the engine oil on the lubricating valve system and the like on the upper portion of the cylinder cover flows into a collecting cavity.
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Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1166868A (en) * | 1995-06-30 | 1997-12-03 | 卡明斯发动机公司 | High-pressure oil pipe connecting device |
| JPH11280539A (en) * | 1998-03-30 | 1999-10-12 | Niigata Eng Co Ltd | Cylinder head and internal combustion engine |
| US6279540B1 (en) * | 1998-07-24 | 2001-08-28 | Lucas Industries Plc | Connector |
| US6293245B1 (en) * | 2000-01-12 | 2001-09-25 | Caterpillar Inc. | Sealing-fail safe leakage control in a cylinder head joint |
| JP2002188547A (en) * | 2000-12-20 | 2002-07-05 | Mitsubishi Heavy Ind Ltd | Structure and method for mounting seal tube |
| US20040200457A1 (en) * | 2003-04-08 | 2004-10-14 | Paul Gottemoller | Diesel injection system with dual flow fuel line |
| JP3119741U (en) * | 2005-12-19 | 2006-03-09 | 日本パッキング工業株式会社 | Cylinder head gasket |
| JP2006177345A (en) * | 2004-11-25 | 2006-07-06 | Nissan Motor Co Ltd | Combustion chamber cooling structure of engine |
| WO2008019415A1 (en) * | 2006-08-17 | 2008-02-21 | Robert Bosch Gmbh | Apparatus for injecting fuel into the combustion chamber of an internal combustion engine |
| WO2009116063A2 (en) * | 2008-01-08 | 2009-09-24 | Tata Motors Limited | Cylinder head for two cylinder ic engine |
| US20100288018A1 (en) * | 2007-07-04 | 2010-11-18 | Ulrich Hopmann | Fuel system for a combustion engine having local leakage detection |
| CN201891520U (en) * | 2010-12-10 | 2011-07-06 | 中国重汽集团济南动力有限公司 | Fuel oil return structure for air cylinder cover |
| CN103352783A (en) * | 2013-07-31 | 2013-10-16 | 山东鑫亚工业股份有限公司 | Oil injector oil-return device matched with diesel engine |
| CN204163877U (en) * | 2014-08-28 | 2015-02-18 | 河南柴油机重工有限责任公司 | Double sealing structure between diesel injector pillar and cylinder head |
| CN204646447U (en) * | 2015-05-13 | 2015-09-16 | 中国第一汽车股份有限公司 | A kind of high pressure of explosion engine fuel injector cover sealing configuration |
| CN205532972U (en) * | 2016-02-15 | 2016-08-31 | 东风朝阳朝柴动力环保科技有限公司 | Mounting structure of diesel engine cylinder lid sprayer |
| WO2021210649A1 (en) * | 2020-04-16 | 2021-10-21 | 三菱重工エンジン＆ターボチャージャ株式会社 | Cylinder head, cylinder block, internal combustion engine, and method for manufacturing cylinder head |
-
2021
- 2021-11-30 CN CN202111446822.9A patent/CN114135415B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1166868A (en) * | 1995-06-30 | 1997-12-03 | 卡明斯发动机公司 | High-pressure oil pipe connecting device |
| JPH11280539A (en) * | 1998-03-30 | 1999-10-12 | Niigata Eng Co Ltd | Cylinder head and internal combustion engine |
| US6279540B1 (en) * | 1998-07-24 | 2001-08-28 | Lucas Industries Plc | Connector |
| US6293245B1 (en) * | 2000-01-12 | 2001-09-25 | Caterpillar Inc. | Sealing-fail safe leakage control in a cylinder head joint |
| JP2002188547A (en) * | 2000-12-20 | 2002-07-05 | Mitsubishi Heavy Ind Ltd | Structure and method for mounting seal tube |
| US20040200457A1 (en) * | 2003-04-08 | 2004-10-14 | Paul Gottemoller | Diesel injection system with dual flow fuel line |
| JP2006177345A (en) * | 2004-11-25 | 2006-07-06 | Nissan Motor Co Ltd | Combustion chamber cooling structure of engine |
| JP3119741U (en) * | 2005-12-19 | 2006-03-09 | 日本パッキング工業株式会社 | Cylinder head gasket |
| WO2008019415A1 (en) * | 2006-08-17 | 2008-02-21 | Robert Bosch Gmbh | Apparatus for injecting fuel into the combustion chamber of an internal combustion engine |
| US20100288018A1 (en) * | 2007-07-04 | 2010-11-18 | Ulrich Hopmann | Fuel system for a combustion engine having local leakage detection |
| WO2009116063A2 (en) * | 2008-01-08 | 2009-09-24 | Tata Motors Limited | Cylinder head for two cylinder ic engine |
| CN201891520U (en) * | 2010-12-10 | 2011-07-06 | 中国重汽集团济南动力有限公司 | Fuel oil return structure for air cylinder cover |
| CN103352783A (en) * | 2013-07-31 | 2013-10-16 | 山东鑫亚工业股份有限公司 | Oil injector oil-return device matched with diesel engine |
| CN204163877U (en) * | 2014-08-28 | 2015-02-18 | 河南柴油机重工有限责任公司 | Double sealing structure between diesel injector pillar and cylinder head |
| CN204646447U (en) * | 2015-05-13 | 2015-09-16 | 中国第一汽车股份有限公司 | A kind of high pressure of explosion engine fuel injector cover sealing configuration |
| CN205532972U (en) * | 2016-02-15 | 2016-08-31 | 东风朝阳朝柴动力环保科技有限公司 | Mounting structure of diesel engine cylinder lid sprayer |
| WO2021210649A1 (en) * | 2020-04-16 | 2021-10-21 | 三菱重工エンジン＆ターボチャージャ株式会社 | Cylinder head, cylinder block, internal combustion engine, and method for manufacturing cylinder head |
Non-Patent Citations (1)
| Title |
|---|
| 曹德阳: "CDD5B1型内燃机车漏水故障分析", 《内燃机与配件》 * |
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