CN114151192A

CN114151192A - Cleaning device

Info

Publication number: CN114151192A
Application number: CN202111545277.9A
Authority: CN
Inventors: 李海军; 张学艳; 张东明; 何郭靖; 方强; 周洲
Original assignee: Shanghai Marine Diesel Engine Research Institute
Current assignee: Shanghai Marine Diesel Engine Research Institute
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-03-08

Abstract

The invention aims to provide a cleaning device which comprises a suction component, a cleaning component and a storage component. The suction assembly is provided with a first end and a second end, the first end is used for being in transmission connection with the driving unit, and the second end can extend into the oil sprayer seat hole. The cleaning assembly is arranged at the second end, can extend into the oil injector seat hole, is in contact with the seat hole plane in the oil injector seat hole and is used for cleaning carbon deposit on the seat hole plane. The storage assembly is communicated with the suction assembly, wherein the carbon deposit cleaned by the cleaning assembly is sucked out of the oil sprayer seat hole by the suction assembly and then is contained in the storage assembly. This cleaning device has integrateed to inhale and has taken out subassembly, clearance subassembly and accomodate the subassembly, can realize that same device clears up, suction and retrieve the step to the carbon deposit on the seat hole plane, has realized the integration operation, has improved the cleaning efficiency to the carbon deposit.

Description

Cleaning device

Technical Field

The invention relates to the field of marine diesel engines, in particular to a cleaning device.

Background

The plane sealing of the gasket is generally adopted between the marine diesel injector and the cylinder cover injector hole, and carbon deposition is easily generated on the plane of the cylinder cover injector seat hole under the action of high temperature and combustion products in a cylinder due to slight leakage, vibration and the like of a sealing surface. Before a common oil sprayer is disassembled and assembled, carbon deposition on a seat hole plane needs to be cleaned, otherwise the problems of seizure of the oil sprayer and a cylinder sleeve water seal sleeve, overheating of the oil sprayer and the like are easily caused, serious faults such as cylinder cover water leakage, oil sprayer failure and the like are caused in serious cases, and the reliability of a diesel engine is seriously influenced.

At present, for the carbon deposit on the plane of the oil sprayer seat hole of the marine diesel engine cylinder cover, manual cleaning is usually carried out by manually using tools such as a steel wire brush, a scraper, a rag and the like. However, the manual cleaning method has the problems of low cleaning efficiency, easy damage to parts and the like.

Disclosure of Invention

The invention aims to provide a cleaning device which can improve the cleaning efficiency and the cleaning effect of carbon deposition in an oil sprayer seat hole.

The cleaning device for solving the problems comprises a suction component, a cleaning component and a storage component. The suction assembly is provided with a first end and a second end, the first end is used for being in transmission connection with the driving unit, and the second end can extend into the oil injector seat hole. The cleaning assembly is arranged at the second end, can extend into the oil injector seat hole, is in contact with a seat hole plane in the oil injector seat hole, and is used for cleaning carbon deposition on the seat hole plane. And the storage assembly is communicated with the suction assembly, and carbon deposit cleaned by the cleaning assembly is sucked out of the oil sprayer seat hole by the suction assembly and then contained in the storage assembly. This cleaning device has integrateed to inhale and has taken out subassembly, clearance subassembly and accomodate the subassembly, can realize utilizing same device to clear up, suction and retrieve the step to the carbon deposit on the seat hole plane, has realized the integration operation, has improved the cleaning efficiency to the carbon deposit.

In one or more embodiments, the suction assembly includes an outer housing, a drive shaft, and a plurality of impellers. The transmission shaft penetrates through the outer shell and is provided with the first end, and the impellers are arranged on the transmission shaft at intervals along the extension direction of the transmission shaft; the transmission shaft can be driven by the driving unit to rotate so as to drive the impeller to rotate and generate suction wind power. A plurality of coaxial series-connected impellers are used as a driving source to drive gas to flow in the outer shell, so that large suction force can be generated, and the carbon deposition suction effect is good.

In one or more embodiments, the outer housing is cylindrical, having a first end face and a second end face, the second end face having an opening to allow passage of carbon soot; the transmission shaft penetrating through the outer shell is connected with the first end face and the second end face through bearings respectively. Through the bearing connection, when the transmission shaft rotates, only the outer ring and the inner ring of the bearing rotate relatively, and the outer shell cannot rotate along with the transmission shaft.

In one or more embodiments, the injector seat bore has a first section and a second section, the first section having an inner diameter greater than an inner diameter of the second section to form a shoulder between the first section and the second section; the suction assembly further comprises an elastic supporting unit, the elastic supporting unit is arranged on the outer side of the second end face, the outer shell is elastically supported on the shoulder, and the shoulder and the second end face are sealed. Through configuration elastic support unit for the flexible volume that this cleaning device that has can satisfy this cleaning device is applicable to the cylinder cap of different structural style, reaches sealed effect simultaneously, has promoted this cleaning device's range of application and cleaning efficiency.

In one or more embodiments, the cleaning assembly includes a wiper that extends into and contacts a seat bore plane within the injector seat bore; the transmission shaft is provided with the second end, the scraping blade is in transmission connection with the second end, and when the transmission shaft rotates, the impeller and the scraping blade can be driven to rotate simultaneously. And when the scraping piece rotates, the carbon deposit can be scraped from the plane of the seat hole. The scraping blade and the impeller are configured to be driven by the transmission shaft to rotate simultaneously, so that the suction and the cleaning steps in the cleaning device can be driven by one driving source, and the carbon deposition cleaning efficiency is further improved.

In one or more embodiments, the cleaning fuel injector seat hole further includes a through hole, and the cleaning assembly further includes a plug, which may be disposed at the through hole and plugs the through hole; and the plug is connected with the second end through a bearing. The through hole is plugged by the plug, so that the carbon deposit removed by cleaning can be effectively prevented from falling into the cylinder, or the carbon deposit removed by cleaning is prevented from remaining between the piston ring and the cylinder wall or between the air valve and the valve seat to cause failure, and secondary pollution is avoided.

In one or more embodiments, the drive shafts include a first drive shaft, a second drive shaft, and a connection joint drivingly connecting the first drive shaft with the second drive shaft; wherein the first drive shaft has the first end and the second drive shaft has the second end. By configuring the drive shaft as two connectable segments: first transmission shaft, second transmission shaft to change second transmission shaft and doctor-bar and end cap that connect, thereby can select to join in marriage according to different model cylinder cap structural style, with further promotion this cleaning device's application scope.

In one or more embodiments, the receiving assembly is located near the first end and is disposed to the side of the housing, and a baffle is also provided within the housing for directing the airflow into the receiving assembly.

In one or more embodiments, the receiving assembly includes a receiving container, a communication passage, and a check damper. The receiving container is provided with an air outlet; the communication channel is communicated with the outer shell and the containing container, the check baffle is rotatably arranged in the communication channel and can move between a closed position and an open position, the check baffle is opened at the open position, and the communication channel is closed at the closed position; wherein when the air flow flows from the communication passage toward the container, the check damper is movable from the closed position to the open position, otherwise, the check damper returns to the closed position under the action of gravity. Through the non-return baffle that sets up only to open in the air inlet direction, can play the carbon deposit refluence effect that prevents in the receiver.

In one or more embodiments, the drive unit is an external power source that is drivingly connected to the first end. By means of an external power source as a driving force, the cleaning device has the characteristics of simple structure, low cost, low failure rate, easiness in maintenance and convenience in carrying.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:

FIG. 1 is a schematic view of a cleaning apparatus according to some embodiments of the present application;

FIG. 2 is a schematic view of a suction assembly according to some embodiments of the present application;

FIG. 3 is a schematic view of a cleaning assembly according to some embodiments of the present application;

fig. 4 is a schematic view of a receiving assembly according to some embodiments of the present application.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

At present, with the wide application of marine diesel engines, the cleaning of carbon deposits at the injection hole in the diesel engine becomes an important part in daily maintenance. At present, the mode of manual cleaning is mostly adopted for cleaning the oil spray hole, however, the existing manual cleaning mode has the following defects:

1) the cleaning efficiency is low: because the carbon deposit is a black coke-like substance generated by incomplete combustion of fuel oil and engine oil, the carbon deposit has high hardness and strong adsorption force, and the cleaning efficiency is low by manual grinding;

2) the secondary pollution phenomenon exists: during the manual polishing and cleaning process, carbon deposition often splashes everywhere, and after polishing, the carbon deposition is only taken out for cleaning through a cleaning cloth, so that the carbon deposition is difficult to clean, and secondary pollution is easily caused to generate mechanical faults;

3) the fuel injector is easy to damage: in the existing method, the polishing material is mostly metal, the polishing force is mainly controlled by manual experience, and the parts are easily damaged due to poor control.

The inventor notices that the problem that the oil injector fails due to poor sealing between the oil injector and the matching surface of the cylinder cover after the oil injector is installed and high-temperature gas cross-ventilation when a diesel engine runs because the carbon deposition at the plane of the oil injector seat hole cannot be cleaned completely by the cylinder cover. In view of the problems of low manual cleaning efficiency and unsatisfactory cleaning effect, it is urgently needed to provide a cleaning device capable of improving the cleaning efficiency of the fuel injector.

According to some embodiments of the application, a cleaning device is provided, which can effectively improve the cleaning efficiency and cleaning effect of a fuel injector seat hole. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1, fig. 1 is a schematic view of a cleaning apparatus according to some embodiments of the present disclosure, the cleaning apparatus including a suction assembly 1, a cleaning assembly 2, and a receiving assembly 3. The suction assembly 1 has a first end 11 and a second end 12, the first end 11 being adapted to be drivingly connected to the drive unit 4, and the second end 12 being adapted to extend into the injector seat bore 9. The cleaning assembly 2 is disposed at the second end 12, and may extend into the injector seat hole 9 and contact the seat hole plane 90 in the injector seat hole 9 for cleaning carbon deposits on the seat hole plane 90. The storage component 3 is communicated with the suction component 1, wherein the carbon deposit cleaned by the cleaning component 2 is sucked out from the oil sprayer seat hole 9 by the suction component 1 and then is contained in the storage component 3.

In the description of the embodiments of the present application, the technical terms "first", "second", such as "first end 11", "second end 12", etc., are used only to distinguish different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order or primary-secondary relationship of the indicated technical features.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations. For example, the first end 11 is used for being in transmission connection with the driving unit 4, which means that the driving unit 4 can be mechanically connected to the first end 11, so that when the driving unit 4 acts, power can be transmitted to the first end 11, thereby driving the suction assembly 1 to operate.

The suction assembly 1 generates a suction force in an operating state, and the suction assembly can extend into the injector seat hole 9 so that the suction force can act on the carbon deposit to suck the carbon deposit out of the injector seat hole 9 from the suction assembly 1, and the specific structure and the operation mode of the suction assembly 1 will be described in detail later.

When the cleaning assembly 2 works, carbon deposits on the seat hole plane 90 can be cleaned, and the cleaning means that the carbon deposits attached to the seat hole plane 90 are removed from the seat hole plane 90 under the action of external force by adopting modes including but not limited to scraping and the like, so that the carbon deposits fall off from the seat hole plane 90. The specific structure and operation of the cleaning assembly 2 will be described in detail later.

Accomodate subassembly 3 and inhale and take out subassembly 1 and be linked together to after inhaling the work of taking out subassembly 1 and producing suction, can inhale the carbon deposit under the clearance wherein, thereby realize handling the collection of carbon deposit.

This cleaning device has integrateed to inhale and has taken out subassembly 1, clearance subassembly 2 and storage assembly 3, can realize that same device clears up, suction and retrieve the step to the carbon deposit on seat hole plane 90, has realized the integration operation, has improved the cleaning efficiency to the carbon deposit.

According to some embodiments of the present application, referring to fig. 2, fig. 2 is a schematic view of a suction assembly according to some embodiments of the present application. The suction assembly 1 includes an outer casing 10, a drive shaft 13, and a plurality of impellers 14, and in the description of the embodiments of the present application, "a plurality" means two or more. The transmission shaft 13 penetrates through the outer shell 10 and is provided with a first end 11, and the impellers 14 are arranged on the transmission shaft 13 at intervals along the extending direction of the transmission shaft 13. The transmission shaft 13 can be driven by the driving unit 4 to rotate, so as to drive the impeller 14 to rotate and generate suction wind.

The impeller 14 is a bladed wheel that, when rotated, drives the fluid in motion, thereby creating a suction force on the soot in the outer casing 10.

The impeller 14 is a plurality of impellers, each impeller 14 is arranged on the periphery of the transmission shaft 13 in a sleeved mode, and when the transmission shaft rotates, the impeller 14 can follow the rotation of the transmission shaft 13. The impellers 14 are arranged at intervals along the extending direction of the transmission shaft 13, the extending direction of the transmission shaft 13 can be understood as the axial direction of the transmission shaft 13, and the intervals are arranged along the axial direction of the transmission shaft 13, and every two adjacent impellers 14 are arranged at a distance from each other in a serial mode, so that when the impellers 14 rotate along with the transmission shaft 13, air can be driven to flow in the direction of arrows shown in the drawing, and carbon deposition can be sucked out.

The plurality of coaxial impellers 14 connected in series are used as a driving source to drive the gas to flow in the outer shell 10, so that large suction force can be generated, and the carbon deposition suction effect is good.

Alternatively, in some embodiments, the impeller 14 is made of a lightweight composite material, which has the effect of being lightweight and low cost.

Alternatively, in some other embodiments, the suction assembly 1 may also be driven by other suitable structures, such as a suction pump.

According to some embodiments of the present application, please continue to refer to fig. 2, the outer housing 10 is cylindrical and has a first end surface 101 and a second end surface 102, and the second end surface 102 has an opening 100 for allowing carbon deposition to pass through. The transmission shaft 13 penetrating the outer housing 10 is connected to the first end surface 101 and the second end surface 102 through bearings 15, respectively.

The first end face 101 and the second end face 102 substantially close the outer casing 10, a space for air to flow is defined inside the cylindrical outer casing 10, the opening 100 may be a hole formed in the second end face 102, and when the impeller 14 is driven to rotate, the impeller can drive air flow to flow in from the opening 100 and then flow in the outer casing 10, so that the air flow drives carbon deposition to flow in from the opening 100 to the outer casing 10, and then the carbon deposition flows to the storage component 3 communicated with the suction component 1 and is stored.

During the penetration, the outer ring of the bearing 15 is fixedly connected with the first end face 101 and the second end face 102, and the inner ring of the bearing 15 is fixedly connected with the transmission shaft 13, so that when the transmission shaft 13 rotates, only the outer ring and the inner ring of the bearing 15 rotate relatively, and the outer shell 10 cannot rotate along with the transmission shaft 13.

According to some embodiments of the present application, continuing to refer to FIG. 2, the injector seat bore 9 has a first section 91 and a second section 92, the first section 91 having an inner diameter greater than an inner diameter of the second section 92 to form a shoulder 93 between the first and

second sections

91, 92. The suction assembly 1 further comprises an elastic support unit 16, wherein the elastic support unit 16 is disposed outside the second end surface 102, elastically supports the outer casing 10 on the shoulder 13, and seals between the shoulder 13 and the second end surface 102.

The elastic supporting unit 16 may be a member made of a material with certain elasticity and sealing property, such as rubber, and is disposed outside the second end surface 102, and may be integrally formed with the second end surface 102 or connected thereto by a fastening member, an adhesive, or the like. In the supported state, the elastic support unit 16 is in contact with the shoulder 93, and when the outer housing 10 moves toward the direction close to the seating plane 90, the elastic support unit 16 may be compressively deformed to provide a movement margin of the outer housing 10. Meanwhile, the elastic support unit 16 seals between the shoulder 13 and the second end face 102, that is, the air flow does not escape from the joint of the elastic support unit 16 and the second end face 102 or the shoulder 13, so that the suction efficiency of the suction assembly 1 is ensured, and meanwhile, the carbon deposition can be prevented from escaping and being difficult to collect.

The resilient support unit 16 has a spring-like profile in the configuration shown in fig. 2 to facilitate telescoping, although in some other suitable embodiments the resilient support unit 16 may take other suitable configurations, such as corrugated.

Through configuration elastic support unit 16 for the flexible volume that it had can satisfy this cleaning device and be applicable to the cylinder cap of different structural style, reaches sealed effect simultaneously, has promoted this cleaning device's range of application and cleaning efficiency.

Referring to fig. 3, fig. 3 is a schematic view of a cleaning assembly according to some embodiments of the present application. The cleaning assembly 2 includes a wiper blade 21, the wiper blade 21 being extendable into contact with a seat bore plane 90 in the injector seat bore 9. The transmission shaft 13 has a second end 12, and the scraping blade 21 is in transmission connection with the second end 12, and when the transmission shaft 13 rotates, the impeller 14 and the scraping blade 21 are driven to rotate simultaneously. Wherein, when the scraping blade 21 rotates, the carbon deposit can be scraped off from the seat hole plane 90.

The scraping blade 21 is a scraping unit fixedly arranged on the periphery of the transmission shaft 13, when the scraping blade 21 contacts the seat hole plane 90, the transmission shaft 13 transmits torque to the scraping blade 21, so that the scraping blade 21 can rotate and rub the seat hole plane 90, and carbon deposition is scraped from the seat hole plane 90.

The scraping blade 21 and the impeller 14 are configured to be driven by the transmission shaft 13 to rotate at the same time, so that the suction and the cleaning steps in the cleaning device can be driven by one driving source, and the cleaning efficiency of the carbon deposit is further improved.

Optionally, according to some embodiments of the present application, the scraping blade 21 is made of a non-metal composite material, which has the advantage of high hardness without damaging the surface of the components, so that the components are not damaged when carbon deposition on the seat hole plane 90 is scraped.

According to some embodiments of the present application, with continued reference to FIG. 3, the cleaning injector seat bore 9 further includes a through bore 94, and the cleaning assembly 2 further includes a plug 22, the plug 22 being positionable at the through bore 94 and plugging the through bore 94. The plug 22 is connected to the second end 12 by a bearing 15.

The plug 22 can be made of a material such as rubber, plastic, etc., and can be inserted into the through hole 94, when the plug is connected to the second end 12 of the transmission shaft 13, the outer ring of the bearing 15 is fixedly disposed in the plug 22, and the inner ring of the bearing 15 is fixedly connected to the second end 12, so that when the transmission shaft 13 rotates, only the outer ring and the inner ring of the bearing 15 rotate relatively, and the plug 22 does not rotate along with the transmission shaft 13.

Through setting up end cap 22 and carrying out the shutoff to through-hole 94, can effectively block that the carbon deposit that the clearance got off drops in the cylinder, or avoid causing the carbon deposit that drops to remain to lead to the trouble between piston ring and cylinder wall or pneumatic valve and the disk seat to the secondary pollution has been avoided causing.

According to some embodiments of the present application, please refer to fig. 2 and fig. 3 in combination, the transmission shaft 13 includes a first transmission shaft 131, a second transmission shaft 132, and a connection joint 130, wherein the connection joint 130 drivingly connects the first transmission shaft 131 and the second transmission shaft 132. The first transmission shaft 131 has the first end 11, and the second transmission shaft 132 has the second end 12.

The connection joint 130 connects the first transmission shaft 131 and the second transmission shaft 132 to be rotated in synchronization with each other without being disengaged in a normal state. In one particular embodiment, the connection joint 130 is a shaft coupling.

By configuring the drive shaft 13 as two connectable segments: the first transmission shaft 131 and the second transmission shaft 132 are convenient for replacing the second transmission shaft 132, the scraping blade 21 connected with the second transmission shaft, and the plug 22 connected with the second transmission shaft, so that the second transmission shaft 132, the scraping blade 21 connected with the second transmission shaft, and the plug 22 can be selected and matched according to different types of cylinder cover structure types, and the application range of the cleaning device is further widened.

According to some embodiments of the present application, please refer to fig. 2, the receiving assembly 3 is located near the first end 11 and is disposed at a side of the outer casing 10, the outer casing 10 further has a baffle plate 103 therein, and the baffle plate 103 is used for guiding the airflow into the receiving assembly 3.

The guide plate 103 is a plate-shaped member arranged in the outer shell 10, and when the air flow is sucked to the guide plate 103, the air flow flows along the extending direction of the guide plate 103, so that the flow guiding effect is realized.

Further, according to some specific embodiments, guide plate 103 is as shown in the figure, set up the arc in shell body 10, and this arc line board is the arc from shell body 10's inner wall, extends towards storage assembly 3, adopts the arc structure to change in guiding the carbon deposit that the drive air current carried, and the carbon deposit of being convenient for enters into storage assembly 3 along with the curved surface, has promoted the smooth degree of guide.

Further, according to some embodiments, the transmission shaft 13 penetrates through the baffle 103 and a shaft seal is disposed between the transmission shaft and the baffle 103.

By arranging the guide plate 103, the carbon deposition can be guided into the accommodating component 3 even after the accommodating component 3 is arranged on the side surface of the outer shell 10. Meanwhile, by disposing the housing assembly 3 on the side surface of the outer case 10, the end surface of the outer case 10 can be made free, and a space for installation or transmission connection with the driving unit can be reserved.

According to some embodiments of the present application, referring to fig. 4, fig. 4 is a schematic view of a receiving assembly according to some embodiments of the present application. The accommodation assembly 3 includes an accommodation container 30, a communication passage 31, and a check damper 32. The storage container 30 has an air outlet 301, a communication passage 31 communicating the outer case 10 and the storage container 31, a check shutter 32 rotatably provided in the communication passage to be movable between a closed position and an open position, the check shutter 32 being open in the open position and closing the communication passage 31 in the closed position. Wherein the check flap 32 is movable from the closed position to the open position when the air flow is flowing from the communication channel 31 towards the receiving container 30, otherwise the check flap 32 returns to the closed position under the influence of gravity.

The communicating channel 31 extends outward from the outer peripheral side of the outer shell 10 to form an airflow channel communicated between the outer shell 10 and the container 31, and the guide plate 103 extends to an inlet of the communicating channel 31 communicated with the outer shell 10 for one section, so as to guide the carbon deposit to the container 30 through the communicating channel 31 for collection, and meanwhile, the airflow is discharged from the air outlet 301.

The check damper 32 is a plate-shaped member, and optionally, the check damper 32 is fixed in the communication passage 31 by a pin, and the position of the check damper 32 may be, as shown in the figure, fixed at the outlet of the end of the communication passage 31 connected to the receiving container 30. The fixed check flap 32 is pivotable about the pin to move from the closed position to the open position. In the closed position, the check baffle 32 covers the outlet of the communication channel 31 and is in contact with the outer edge of the outlet of the communication channel 31 for limiting. In other suitable embodiments, a check flap 32 may also be provided in the communication channel 31, with a raised portion provided in the communication channel 31 to retain the check flap 32 in the closed position.

Through the non-return baffle 32 that sets up only to open in the air inlet direction, can play the carbon deposit refluence effect in preventing the receiver.

Optionally, according to some embodiments of the present application, a filter screen 302 is disposed at the air outlet 301 to filter the flowing air, so as to prevent carbon deposition from being dissipated from the air outlet 301 to the outside air. The whole process comprises carbon deposition interception and storage and gas discharge to form a smooth flow field, and then the carbon deposition can be continuously pumped out for storage.

Alternatively, according to some embodiments of the present disclosure, the storage container 30 has a cover plate 303, the cover plate 303 is detachably disposed in the storage container 30 by a connection method such as a screw connection, and by detaching the cover plate 303, the carbon deposition in the storage container 30 can be rapidly collected.

According to some embodiments of the present application, referring to fig. 1, the drive unit 4 is an external power source, which is in driving connection with said first end 11.

The external power source is a power source which is not arranged in the cleaning device and needs to be in transmission connection with the cleaning device through a joint or a connecting part. Optionally, the external power source is a pneumatic motor or an electric tool commonly used in ships or laboratories, and the external power source is in transmission connection with the first end 11, so that the external power source can play a role in providing high-speed rotation driving force for the whole cleaning device. By means of an external power source as a driving force, the cleaning device has the characteristics of simple structure, low cost, low failure rate, easiness in maintenance and convenience in carrying.

Optionally, according to some embodiments of the present application, a driving unit 4 may be further integrated into the cleaning device, and the driving unit is in transmission connection with the first end 11. Alternatively, the drive unit 4 may be a motor arranged in the cleaning device, an output shaft of the motor being in driving connection with the first end 11 of the drive shaft 13 via a component such as a coupling.

The fuel injector seat hole 9 is cleaned by the cleaning device described in one or more of the embodiments described above as follows:

1) cleaning Assembly 2 Assembly

Selecting a proper cleaning assembly 2 according to the diameter requirement of the injector seat hole 90 to be cleaned, then plugging a plug 22 in the cleaning assembly 2 into the hole, fully contacting a scraping blade 21 with a cleaning surface, and driving a second transmission shaft 132 to rotate flexibly through a hand-rotating connecting joint 130;

2) suction assembly 1 Assembly

Taking out the module of the suction assembly 1, inserting the module into a fuel injector hole, aligning the first transmission shaft 131 with the connecting joint 130 on the cleaning assembly 2, driving the first transmission shaft 131 by manually rotating the first end 11 at the connecting position of the driving source anticlockwise, and connecting the first transmission shaft 131 with the connecting joint 130 through threads;

3) storage module 3 assembly

The storage assembly 3 is connected with the suction assembly 1 through a thread, and finally, the external driving source is connected through the first end 11.

4) Cleaning operation

After the driving unit 4 is connected with the device, the driving unit 4 is opened and pressed to transmit the acting force between the cleaning scraping sheet 21 and the seat hole plane 90, the driving source is closed after 10 seconds of operation, the device is taken out of the cylinder cover, and one-time cleaning of carbon deposits in the seat hole plane of the oil sprayer is completed.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims

1. A cleaning device for cleaning a fuel injector seat bore, comprising:

the suction assembly is provided with a first end and a second end, the first end is in transmission connection with the driving unit, and the second end can extend into the oil injector seat hole;

the cleaning assembly is arranged at the second end, can extend into the oil injector seat hole, is in contact with a seat hole plane in the oil injector seat hole and is used for cleaning carbon deposition on the seat hole plane; and

the storage assembly is communicated with the suction assembly;

and carbon deposit cleaned by the cleaning assembly is sucked out of the oil sprayer seat hole by the suction assembly and then contained in the containing assembly.

2. The cleaning apparatus defined in claim 1, wherein the suction assembly comprises:

an outer housing;

the transmission shaft penetrates through the outer shell and is provided with the first end; and

the impellers are arranged on the transmission shaft at intervals along the extension direction of the transmission shaft;

the transmission shaft can be driven by the driving unit to rotate so as to drive the impeller to rotate and generate suction wind power.

3. The cleaning apparatus defined in claim 2, wherein the outer housing is cylindrical having a first end face and a second end face, the second end face having an opening to allow passage of carbon deposits;

the transmission shaft penetrating through the outer shell is connected with the first end face and the second end face through bearings respectively.

4. The cleaning apparatus as defined in claim 3, wherein the injector seat bore has a first section and a second section, the first section having an inner diameter greater than an inner diameter of the second section to form a shoulder between the first section and the second section;

the suction assembly further comprises an elastic supporting unit, the elastic supporting unit is arranged on the outer side of the second end face, the outer shell is elastically supported on the shoulder, and the shoulder and the second end face are sealed.

5. The cleaning apparatus defined in claim 2, wherein the cleaning assembly includes a wiper that extends into and contacts a seat bore plane in the injector seat bore; the transmission shaft is provided with the second end, the scraping blade is in transmission connection with the second end, and when the transmission shaft rotates, the impeller and the scraping blade can be driven to rotate simultaneously;

and when the scraping piece rotates, the carbon deposit can be scraped from the plane of the seat hole.

6. The cleaning device of claim 5, wherein the cleaning injector seat bore further comprises a through bore, and the cleaning assembly further comprises a plug positionable at the through bore and plugging the through bore;

and the plug is connected with the second end through a bearing.

7. The cleaning apparatus defined in claim 5, wherein the drive shaft comprises a first drive shaft, a second drive shaft, and a connection joint drivingly connecting the first drive shaft with the second drive shaft;

wherein the first drive shaft has the first end and the second drive shaft has the second end.

8. The cleaning apparatus defined in claim 2, wherein the receptacle assembly is located adjacent the first end and is disposed to the side of the housing, and a baffle is provided within the housing for directing airflow into the receptacle assembly.

9. The cleaning apparatus defined in claim 8, wherein the receptacle assembly comprises:

a storage container having an air outlet;

a communication passage for communicating the outer case and the storage container; and

a check damper rotatably disposed in the communication passage to be movable between a closed position and an open position, the check damper being open in the open position and closing the communication passage in the closed position;

wherein when the air flow flows from the communication passage toward the container, the check damper is movable from the closed position to the open position, otherwise, the check damper returns to the closed position under the action of gravity.

10. The cleaning apparatus defined in claim 1, wherein the drive unit is an external power source drivingly connected to the first end.