CN115370474B - Fastening structure for connecting air cooler and scavenging box and diesel engine - Google Patents
Fastening structure for connecting air cooler and scavenging box and diesel engine Download PDFInfo
- Publication number
- CN115370474B CN115370474B CN202211016721.2A CN202211016721A CN115370474B CN 115370474 B CN115370474 B CN 115370474B CN 202211016721 A CN202211016721 A CN 202211016721A CN 115370474 B CN115370474 B CN 115370474B
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- CN
- China
- Prior art keywords
- air cooler
- scavenging box
- fastening structure
- diesel engine
- scavenging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000002000 scavenging effect Effects 0.000 title claims abstract description 84
- 238000001816 cooling Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 241000237983 Trochidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
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- 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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
- F02B29/0475—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly the intake air cooler being combined with another device, e.g. heater, valve, compressor, filter or EGR cooler, or being assembled on a special engine location
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- 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
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/10—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of charging or scavenging apparatus
-
- 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
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention belongs to the technical field of diesel engines, and discloses a fastening structure for connecting an air cooler and a scavenging box and a diesel engine, wherein the fastening structure comprises a support frame and a fastening bolt, the support frame is fixedly arranged on the side wall of the air cooler, and a threaded hole is formed in the support frame; the fastening bolt comprises a head and a screw rod portion, the screw rod portion penetrates through the threaded hole, the head is arranged at one end of the screw rod portion, a supporting nut is welded at the other end of the screw rod portion, and the fastening bolt is used for driving the supporting nut so that the supporting nut abuts against the inner wall of the scavenging box. The fastening structure can be used for quickly connecting and fixing the air cooler and the scavenging box, so that the air cooler is prevented from vibrating in the scavenging box, and the service performance of the diesel engine is ensured.
Description
Technical Field
The invention relates to the technical field of diesel engines, in particular to a fastening structure for connecting an air cooler and a scavenging box and a diesel engine.
Background
The scavenging box of marine diesel engine is located the drive end, when the air cooler is packed into or is unpick out the scavenging box, can follow same side and go on, owing to do not have fastening structure between scavenging box and the air cooler, the diesel engine is in long-time operation in-process, owing to self vibration and severe vibration under the abominable sea condition, can lead to the air cooler to produce severe vibration in the scavenging box, lead to sealed effect decline, get into the scavenging box after part high temperature gas passes through the clearance between air cooler and the scavenging box, and then make the air temperature in the scavenging box be higher, influence the perfect degree of diesel engine fuel, the air cooler can lead to the inside cooling tube fracture of air cooler or drop because of excessive vibration even, seriously influence cooling efficiency, lead to the performance decline of diesel engine.
Therefore, a fastening structure for connecting an air cooler and a scavenging box and a diesel engine are needed, the air cooler and the scavenging box can be quickly connected and fixed, vibration of the air cooler in the scavenging box is avoided, and the service performance of the diesel engine is guaranteed.
Disclosure of Invention
One object of the present invention is to: the fastening structure for connecting the air cooler and the scavenging box and the diesel engine are provided, the air cooler and the scavenging box can be quickly connected and fixed, the air cooler is prevented from vibrating in the scavenging box, and the service performance of the diesel engine is guaranteed.
To achieve the purpose, the invention adopts the following technical scheme:
a fastening structure for connecting an air cooler and a scavenging box, the fastening structure comprising:
the support frame is fixedly arranged on the side wall of the air cooler and provided with a threaded hole;
The fastening bolt comprises a head and a screw rod portion, the screw rod portion penetrates through the threaded hole, the head is arranged at one end of the screw rod portion, a supporting nut is welded at the other end of the screw rod portion, and the fastening bolt is used for driving the supporting nut to enable the supporting nut to be abutted to the inner wall of the scavenging box.
As an optional technical scheme, the outer periphery thread sleeve of the screw rod portion is provided with a lock nut, and the lock nut is located between the threaded hole and the head portion.
As an optional technical scheme, the support frame includes vertical linkage segment and horizontal support section, vertical linkage segment with the horizontal support section is connected and is formed L type structure, vertical linkage segment fixed mounting in the lateral wall of air cooler, the screw hole is seted up on the horizontal support section.
As an optional technical scheme, the top surface of the horizontal support section is located below the top surface of the air cooler, and the height difference between the top surface of the horizontal support section and the top surface of the air cooler is a first preset value, and the first preset value is greater than the thickness of the support nut.
The diesel engine comprises an air cooler, a scavenging box and the fastening structure, wherein the air cooler is arranged in the scavenging box, and the fastening structure is used for fixing the air cooler in the scavenging box.
As an optional technical scheme, dodging holes are formed in positions, corresponding to the fastening structures, of the scavenging box.
As an optional technical scheme, dodge hole department demountable installation has the apron, the apron is used for shutoff dodge the hole.
As an optional technical scheme, a gasket is arranged between the cover plate and the scavenging box.
As an optional technical scheme, the fastening structure is arranged at the tail end of the air cooler, the fastening structure is used for being abutted against the top shell of the scavenging box, and the avoidance hole is formed in the tail shell of the scavenging box.
As an alternative solution, the cover plate is fixed on the tail housing by a connecting bolt.
The invention has the beneficial effects that:
The invention provides a fastening structure for connecting an air cooler and a scavenging box and a diesel engine, wherein before the air cooler is arranged in the scavenging box, a fastening bolt passes through a threaded hole of a supporting frame, then a supporting nut is welded on a screw rod part of the fastening bolt, the head part and the supporting nut are respectively positioned at two sides of the threaded hole, the air cooler is arranged in the scavenging box, the fastening bolt is screwed down, the fastening bolt and the supporting nut move towards the scavenging box, the supporting nut is abutted against the inner wall of the scavenging box, the stronger the screwing force of the fastening bolt is, the higher the pressure of the supporting nut on the inner wall of the scavenging box is, the higher the installation stability of the air cooler in the scavenging box is, the air cooler is prevented from vibrating in the scavenging box, and the service performance of the diesel engine is ensured; because the contact area between the support nut and the scavenging box is large, the pressure of the support nut on the inner wall of the scavenging box can be kept within a preset range, and the inner wall of the scavenging box is prevented from being crushed; because the support nut can be propped against or separated from the inner wall of the scavenging box by rotating the fastening bolt, the air cooler and the scavenging box can be quickly connected, fixed or detached and separated, and the disassembly and assembly efficiency is high.
Drawings
The invention is described in further detail below with reference to the drawings and examples;
FIG. 1 is a schematic view of a part of a diesel engine according to an embodiment;
FIG. 2 is a cross-sectional view of section A-A of FIG. 1;
Fig. 3 is a partial enlarged view of the position B in fig. 2.
In the figure:
100. A fastening structure; 200. an air cooler; 300. a scavenging box; 301. avoidance holes; 302. a top housing; 303. a tail housing;
1. A support frame; 11. a vertical connection section; 12. a horizontal support section;
2. A fastening bolt; 21. a head; 22. a screw portion;
3. A support nut;
4. A lock nut;
5. A cover plate;
6. a gasket;
7. And (5) connecting bolts.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the operation, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.
In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present embodiment provides a fastening structure 100 for connecting an air cooler 200 and a scavenging air box 300, the fastening structure 100 includes a support frame 1 and a fastening bolt 2, the support frame 1 is fixedly mounted on a side wall of the air cooler 200, and a threaded hole is formed in the support frame 1; the fastening bolt 2 includes a head portion 21 and a screw portion 22, the screw portion 22 penetrates through the screw hole, the head portion 21 is provided at one end of the screw portion 22, the other end of the screw portion 22 is welded with the support nut 3, and the fastening bolt 2 is used for driving the support nut 3 so that the support nut 3 abuts against the inner wall of the scavenging box 300.
Specifically, before the air cooler 200 is installed into the scavenging box 300, the fastening bolt 2 passes through the threaded hole of the supporting frame 1, then the supporting nut 3 is welded on the screw rod part 22 of the fastening bolt 2, the head part 21 and the supporting nut 3 are respectively positioned at two sides of the threaded hole, the air cooler 200 is installed into the scavenging box 300, the fastening bolt 2 is screwed down, the fastening bolt 2 and the supporting nut 3 move towards the scavenging box 300, the supporting nut 3 is abutted against the inner wall of the scavenging box 300, the stronger the screwing force of the fastening bolt 2 is, the higher the pressure of the supporting nut 3 to the inner wall of the scavenging box 300 is, the higher the installation stability of the air cooler 200 in the scavenging box 300 is, the vibration of the air cooler 200 in the scavenging box 300 is avoided, and the use performance of a diesel engine is ensured; because the contact area between the support nut 3 and the scavenging box 300 is large, the pressure of the support nut 3 on the inner wall of the scavenging box 300 can be kept within a preset range, and the inner wall of the scavenging box 300 is prevented from being crushed by the support nut 3 or the fastening bolt 2; the support nut 3 can be pressed against or separated from the inner wall of the scavenging box 300 by rotating the fastening bolt 2, so that the air cooler 200 and the scavenging box 300 can be connected, fixed or detached and separated quickly, and the disassembly and assembly efficiency is high.
Optionally, the screw portion 22 is provided with a lock nut 4 around its outer periphery, and the lock nut 4 is located between the threaded hole and the head 21. Before the air cooler 200 is installed into the scavenging box 300, the locking nut 4 is sleeved on the periphery of the screw rod part 22, then the screw rod part 22 sleeved with the locking nut 4 passes through the threaded hole of the supporting frame 1, after the fastening bolt 2 drives the supporting nut 3 to be abutted against the inner wall of the scavenging box 300, namely after the locking structure locks the air cooler 200 in the scavenging box 300, the locking nut 4 is screwed, the fastening bolt 2 is locked on the supporting frame 1 by the locking nut 4, the fastening bolt 2 cannot rotate continuously in the threaded hole, and vibration of the fastening bolt 2 caused by vibration is prevented; when the air cooler 200 needs to be detached from the scavenging box 300, the lock nut 4 is loosened, the fastening bolt 2 is unlocked, and then the fastening bolt 2 is rotated, so that the fastening bolt 2 drives the supporting nut 3 to be separated from the inner wall of the scavenging box 300.
Optionally, the support frame 1 includes a vertical connection section 11 and a horizontal support section 12, the vertical connection section 11 and the horizontal support section 12 are connected to form an L-shaped structure, the vertical connection section 11 is fixedly mounted on a side wall of the air cooler 200, and a threaded hole is formed in the horizontal support section 12. The vertical connecting section 11 is welded on the support frame 1, so that the connection strength between the support frame 1 and the air cooler 200 is ensured.
Optionally, the top surface of the horizontal support section 12 is located below the top surface of the air cooler 200, and the height difference between the top surface of the horizontal support section 12 and the top surface of the air cooler 200 is a first preset value, where the first preset value is greater than the thickness of the support nut 3. When the fastening bolt 2 drives the support nut 3 to approach the horizontal support section 12, the height of the support nut 3 does not exceed the total height of the air cooler 200, so that the air cooler 200 cannot be installed in the scavenging box 300.
The present embodiment also provides a diesel engine including the air cooler 200, the scavenging box 300, and the fastening structure 100 as above, the air cooler 200 being installed in the scavenging box 300, the fastening structure 100 being used to fix the air cooler 200 in the scavenging box 300. The air cooler 200 is used for cooling air, and the scavenging box 300 can protect the air cooler 200.
Optionally, the scavenging box 300 is provided with a relief hole 301 at a position corresponding to the fastening structure 100, and when the fastening structure 100 needs to be operated, for example, the fastening bolt 2 is screwed or unscrewed, an operator can operate the fastening bolt 2 by passing a tool through the relief hole 301.
Optionally, the fastening structure 100 is disposed at a tail end of the air cooler 200, the fastening structure 100 is used for abutting against a top housing 302 of the scavenging box 300, and the avoiding hole 301 is opened at a tail housing 303 of the scavenging box 300. The fastening structure 100 is disposed at the tail end of the air cooler 200, and the fastening structure 100 fixedly connects the tail end of the air cooler 200 to the scavenging box 300, so that the tail end of the air cooler 200 can be prevented from vibrating in the scavenging box 300.
Optionally, the avoidance hole 301 is detachably provided with a cover plate 5, and the cover plate 5 is used for plugging the avoidance hole 301. When the diesel engine is in operation, the cover plate 5 can seal the avoidance holes 301 so as to prevent high-temperature gas from penetrating through the avoidance holes 301 to enter the inside of the scavenging box 300, so that the temperature in the scavenging box 300 can be kept within a preset range, and the fuel efficiency of the diesel engine is ensured.
Optionally, a gasket 6 is arranged between the cover plate 5 and the scavenging box 300.
Optionally, the cover 5 is fixed to the tail housing 303 by a connecting bolt 7, so as to facilitate the disassembly and assembly of the cover 5.
Furthermore, the foregoing description of the preferred embodiments and the principles of the invention is provided herein. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (7)
1. A fastening structure for connecting an air cooler (200) and a scavenging box (300), characterized in that the fastening structure (100) comprises:
The support frame (1) is fixedly arranged on the side wall of the air cooler (200), and a threaded hole is formed in the support frame (1);
The fastening bolt (2), the fastening bolt (2) comprises a head (21) and a screw rod part (22), the screw rod part (22) penetrates through the threaded hole, the head (21) is arranged at one end of the screw rod part (22), a supporting nut (3) is welded at the other end of the screw rod part (22), and the fastening bolt (2) is used for driving the supporting nut (3) so that the supporting nut (3) is abutted against the inner wall of the scavenging box (300);
The support frame (1) comprises a vertical connecting section (11) and a horizontal supporting section (12), wherein the vertical connecting section (11) and the horizontal supporting section (12) are connected to form an L-shaped structure, the vertical connecting section (11) is fixedly arranged on the side wall of the air cooler (200), and the threaded hole is formed in the horizontal supporting section (12);
a lock nut (4) is sleeved on the outer periphery thread of the screw rod part (22), and the lock nut (4) is positioned between the threaded hole and the head part (21);
the top surface of the horizontal support section (12) is located below the top surface of the air cooler (200), and the height difference between the top surface of the horizontal support section (12) and the top surface of the air cooler (200) is a first preset value, wherein the first preset value is larger than the thickness of the support nut (3).
2. A diesel engine, characterized by comprising an air cooler (200), a scavenging box (300) and a fastening structure (100) according to claim 1, wherein the air cooler (200) is installed in the scavenging box (300), and the fastening structure (100) is used for fixing the air cooler (200) in the scavenging box (300).
3. The diesel engine according to claim 2, characterized in that the scavenging box (300) is provided with a relief hole (301) in a position corresponding to the fastening structure (100).
4. A diesel engine according to claim 3, characterized in that a cover plate (5) is detachably mounted at the relief hole (301), the cover plate (5) being adapted to close the relief hole (301).
5. The diesel engine according to claim 4, characterized in that a gasket (6) is arranged between the cover plate (5) and the scavenging box (300).
6. The diesel engine according to claim 4, wherein the fastening structure (100) is disposed at a tail end of the air cooler (200), the fastening structure (100) is used for abutting against a top casing (302) of the scavenging box (300), and the avoidance hole (301) is opened at a tail casing (303) of the scavenging box (300).
7. A diesel engine according to claim 6, characterized in that the cover plate (5) is fixed to the tail housing (303) by means of connecting bolts (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211016721.2A CN115370474B (en) | 2022-08-24 | 2022-08-24 | Fastening structure for connecting air cooler and scavenging box and diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211016721.2A CN115370474B (en) | 2022-08-24 | 2022-08-24 | Fastening structure for connecting air cooler and scavenging box and diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115370474A CN115370474A (en) | 2022-11-22 |
| CN115370474B true CN115370474B (en) | 2024-05-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211016721.2A Active CN115370474B (en) | 2022-08-24 | 2022-08-24 | Fastening structure for connecting air cooler and scavenging box and diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115370474B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10274093A (en) * | 1997-03-28 | 1998-10-13 | Isuzu Motors Ltd | Engine |
| JP2005172197A (en) * | 2003-12-15 | 2005-06-30 | Isuzu Motors Ltd | Vibration restricting fastening structure |
| CN102562935A (en) * | 2010-12-21 | 2012-07-11 | 珠海格力电器股份有限公司 | Vibration-proof device and fixing device for outdoor unit of air conditioner with same |
| CN107087369A (en) * | 2017-06-30 | 2017-08-22 | 潘承燕 | A kind of antidetonation noise reduction electrical control cabinet |
| CN207634613U (en) * | 2017-10-18 | 2018-07-20 | 新昌县回山镇启迪五金经营部 | A kind of compressor damping device |
| CN110595253A (en) * | 2019-10-12 | 2019-12-20 | 中船动力研究院有限公司 | Diesel engine air cooler seal structure and diesel engine |
| CN215565687U (en) * | 2021-05-10 | 2022-01-18 | 宝鸡嘉诚石油化工机械有限公司 | Mounting structure of drilling power transmission unit |
-
2022
- 2022-08-24 CN CN202211016721.2A patent/CN115370474B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10274093A (en) * | 1997-03-28 | 1998-10-13 | Isuzu Motors Ltd | Engine |
| JP2005172197A (en) * | 2003-12-15 | 2005-06-30 | Isuzu Motors Ltd | Vibration restricting fastening structure |
| CN102562935A (en) * | 2010-12-21 | 2012-07-11 | 珠海格力电器股份有限公司 | Vibration-proof device and fixing device for outdoor unit of air conditioner with same |
| CN107087369A (en) * | 2017-06-30 | 2017-08-22 | 潘承燕 | A kind of antidetonation noise reduction electrical control cabinet |
| CN207634613U (en) * | 2017-10-18 | 2018-07-20 | 新昌县回山镇启迪五金经营部 | A kind of compressor damping device |
| CN110595253A (en) * | 2019-10-12 | 2019-12-20 | 中船动力研究院有限公司 | Diesel engine air cooler seal structure and diesel engine |
| CN215565687U (en) * | 2021-05-10 | 2022-01-18 | 宝鸡嘉诚石油化工机械有限公司 | Mounting structure of drilling power transmission unit |
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| Publication number | Publication date |
|---|---|
| CN115370474A (en) | 2022-11-22 |
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