Composite base and diesel engine power plant

By integrating the functions of the diesel engine oil pan and the vibration isolator into a composite base, the problems of heavy weight and vibration transmission in diesel engine power units are solved, achieving the effects of lightweighting, compactness, and noise reduction.

CN116753400BActive Publication Date: 2026-06-26THE 711TH RES INST OF CHINA STATE SHIPBUILDING CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
THE 711TH RES INST OF CHINA STATE SHIPBUILDING CORP
Filing Date
2023-05-18
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing diesel engine power unit's common base is heavy and has a single function, making it difficult to meet the requirements of compactness and lightweighting. At the same time, vibration transmission affects the comfort of the hull.

Method used

The composite base, including a base plate, web plate, sealing plate and mounting panel, integrates the function of a diesel engine oil pan. Combined with sealing strips and vibration isolators, it reduces overall weight and noise. The generator is connected by pad blocks, resulting in a compact structure that reduces vibration.

Benefits of technology

It reduces the overall weight and noise of the diesel engine power unit, saves installation space and cost, has a compact structure, is easy to maintain, and mitigates the effects of vibration.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116753400B_ABST
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Abstract

The application provides a composite base and a diesel engine power device. The diesel engine power device comprises a diesel engine and a generator. The composite base comprises a bottom plate, two web plates, two sealing plates, two mounting panels, a sealing strip and a cushion block. The bottom edges of the web plates are connected to the parallel-to-length edges of the bottom plate. The bottom edges of the sealing plates are connected to the bottom plate, and the two side edges of the sealing plates are connected to the web plates. The bottom plate, the web plates and the sealing plates are arranged and limited to form an oil tank groove for serving as an oil sump of the diesel engine. The mounting panels are connected to the top edges of the web plates, and the mounting panels are provided with first mounting interfaces for being connected to the engine feet of the diesel engine. The bottom of the mounting panel is provided with a vibration isolator. The sealing strip is connected to the top edges of the sealing plates for being sealingly connected to the engine feet of the diesel engine. The cushion block is provided with second mounting interfaces for being connected to the generator. The composite base of the application is compact in structure, integrates the oil sump function of the diesel engine, and is beneficial to reducing the noise of the diesel engine.
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Description

Technical Field

[0001] This application relates generally to the field of diesel engine technology, and more specifically to a composite base and a diesel engine power unit. Background Technology

[0002] The common base is a crucial component of the diesel engine power unit, used to support and rigidly connect the diesel engine, generator (power generation unit), intermediate support (propulsion unit), auxiliary equipment, and most other components. The common base needs sufficient strength and rigidity to ensure stable and safe operation of the system. Simultaneously, vibrations generated by the diesel engine during operation are transmitted to the hull structure through the common base and then diffused into the water. Therefore, the common base also plays a key role in reducing hull vibrations and improving comfort.

[0003] Currently, the commonly used common base for the device is a rectangular slatted structure welded from steel plates, which is large, heavy, and has a single function. As diesel power units continue to develop towards compactness, lightweighting, and modularity, more stringent requirements are being placed on the size and weight of the common base.

[0004] Therefore, there is a need to provide a composite base and a diesel engine power unit to at least partially solve the above problems. Summary of the Invention

[0005] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, a first aspect of this application provides a composite base for mounting a diesel engine power unit, the diesel engine power unit including a diesel engine and a generator, the composite base comprising:

[0007] Base plate;

[0008] Two webs, the two webs being spaced apart along the width direction of the base plate, the webs extending along the length direction of the base plate, and the bottom edge of the webs being connected to the edge of the base plate parallel to the length direction;

[0009] Two sealing plates are provided, with the bottom edge of the sealing plate connected to the bottom plate and the two sides of the sealing plate connected to the web plate respectively. The two sealing plates are spaced apart along the length direction. The bottom plate, the web plate and the sealing plates are arranged around and define an oil pan groove for serving as the oil pan of the diesel engine.

[0010] Two mounting panels are spaced apart from the base plate along the height direction and spaced apart along the width direction. The mounting panels are connected to the top edge of the web plate. The mounting panels are provided with a first mounting interface for connecting to the diesel engine mount, and a vibration isolator is provided at the bottom of the mounting panels.

[0011] A sealing strip, connected to the top edge of the sealing plate, for sealing connection with the diesel engine mount; and

[0012] A pad, the pad being provided with a second mounting interface for connection to the generator.

[0013] According to the composite base of the first aspect of this application, a base plate, a web plate, and a sealing plate surround and restrict an oil pan groove, which serves as the oil pan of the diesel engine. The oil pan is connected to the diesel engine mount via a first mounting interface on the mounting panel. Combined with a sealing strip, the diesel engine and the composite base are sealed together, thus integrating the oil pan function of the diesel engine into the composite base. This reduces the overall weight and height of the diesel engine power unit, saving installation space and manufacturing costs, and facilitating diesel engine maintenance. Compared to existing diesel engine oil pans, this composite base has greater weight, strength, and rigidity, which helps reduce diesel engine noise. Furthermore, the composite base integrating the diesel engine oil pan function is connected to the generator via a second mounting interface on a pad, integrating the generator and diesel engine onto the composite base for a compact structure. The mounting panel is mounted on the hull or other structures via vibration isolators, which helps to reduce diesel engine vibration.

[0014] Optionally, the top surface of the mounting panel is provided with a sealing groove, which communicates with the oil pan groove, and the inner bottom surface of the sealing groove is used to mate with the bottom surface of the diesel engine mount.

[0015] Optionally, the end of the sealing strip extends into the sealing groove.

[0016] Optionally, the oil tank is provided with a plurality of transverse partitions, which are spaced apart along the length direction; the side of the transverse partition is connected to the web plate, and the bottom edge of the transverse partition is connected to the bottom plate.

[0017] Optionally, the oil sump is provided with an oil pipe for drawing lubricating oil from the oil sump to the diesel engine for lubrication; the sealing plate includes a first sealing plate located at one end of the base plate and a second sealing plate located in the middle of the base plate; the first sealing plate is provided with an oil pump interface for connecting to the diesel engine oil pump, and the oil pipe is connected to the oil pump interface.

[0018] Optionally, the lubricating oil pipe is provided with a filter; and / or

[0019] The first sealing plate is provided with a separator interface for connection to the separator and an oil filling port.

[0020] Optionally, a first reinforcing rib is provided in the oil tank groove. The first reinforcing rib is connected to the web plate and the bottom plate respectively, and the first reinforcing rib is spaced apart along the length direction.

[0021] Optionally, it also includes two reinforcing members, the reinforcing members having a T-shaped cross-section along the width direction; the ends of the reinforcing members are connected to the web plate, the bottom of the reinforcing members are connected to the base plate, and the two reinforcing members are located at both ends of the generator when the generator is installed on the composite base.

[0022] Optionally, a second reinforcing rib is further provided between the reinforcing members, the second reinforcing rib being spaced apart along the length direction, and the second reinforcing rib being respectively connected to the web plate and the bottom plate.

[0023] Optionally, the outer wall of the web is provided with ribs arranged at intervals along the length direction, and the ribs are connected to the bottom surface of the mounting panel.

[0024] Optionally, the web is provided with a maintenance hole; and / or

[0025] The web is equipped with a drain hole and a level gauge.

[0026] Optionally, the mounting panel is provided with a third mounting interface for connecting the lifting lug.

[0027] A second aspect of this application provides a diesel engine power unit, comprising:

[0028] Based on the aforementioned composite base;

[0029] A diesel engine, wherein the engine mount is connected to the mounting panel via the first mounting interface, and the engine mount is sealed to the sealing strip to close the oil pan groove; and

[0030] A generator, which is connected to the pad.

[0031] The diesel engine power unit according to the second aspect of this application has a compact structure, reduces overall weight, facilitates maintenance, and has low operating noise. Attached Figure Description

[0032] The following drawings, illustrating embodiments of this application, are incorporated herein by reference and are used to understand this application. The drawings illustrate embodiments of this application and their descriptions, serving to explain the principles of this application. In the drawings,

[0033] Figure 1This is a perspective view of a composite base according to a preferred embodiment of this application;

[0034] Figure 2 This is a schematic diagram illustrating the installation of a composite base and a diesel engine power unit according to a preferred embodiment of this application.

[0035] Figure 3 for Figure 1 A top view of the composite base in the image;

[0036] Figure 4 for Figure 1 A side view of the composite base along its width; and

[0037] Figure 5 for Figure 1 A side view of the composite base along its length.

[0038] Explanation of reference numerals in the attached figures

[0039] 100: Diesel engine; 101: Engine mount

[0040] 102: Lubricating oil pump; 103: Vibration isolator

[0041] 104: Lifting lugs; 120: Generator

[0042] 130: Base plate; 131: Oil tank

[0043] 132: diaphragm; 133: lubricating oil pipe

[0044] 134: Filter; 135: First reinforcing rib

[0045] 140: Web plate 141: Rib plate

[0046] 142: Maintenance hole; 143: Drain hole

[0047] 144: Level gauge; 150: First sealing plate

[0048] 151: Second sealing plate; 152: Oil pump interface

[0049] 153: Separator interface; 154: Oil filler port

[0050] 160: Mounting panel 161: First mounting interface

[0051] 162: Sealing groove; 163: Third mounting interface

[0052] 170: Sealing strip; 180: Gasket

[0053] 181: Second mounting interface; 190: Reinforcing component

[0054] 191: Reinforcing plate; 192: Connecting plate

[0055] 193: Second stiffener X: Length direction

[0056] Y: Width direction Z: Height direction Detailed Implementation

[0057] In the following description, numerous specific details are set forth to provide a more thorough understanding of this application. However, it will be apparent to those skilled in the art that embodiments of this application may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with embodiments of this application.

[0058] In this document, ordinal numbers such as “first” and “second” used in this application are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term “first component” does not imply the existence of a “second component”, and the term “second component” does not imply the existence of a “first component”.

[0059] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0060] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0061] Unless otherwise stated, the numerical ranges in this document include not only the entire range within its two endpoints, but also the subranges contained therein.

[0062] Figures 1 to 5 A composite base according to this application is shown for mounting a diesel engine power unit, which includes a diesel engine 100 and a generator 120.

[0063] Reference Figure 1 The composite base includes a base plate 130, two web plates 140, two sealing plates, two mounting panels 160, a sealing strip 170, and a pad 180.

[0064] The web plate 140 is spaced apart along the width direction Y of the base plate 130 and extends along the length direction X of the base plate 130. The bottom edge of the web plate 140 is connected to the edge of the base plate 130 parallel to the length direction X. The bottom edge of the sealing plate is connected to the base plate 130, and the two sides of the sealing plate are respectively connected to the web plate 140. The two sealing plates are spaced apart along the length direction X. The base plate 130, the web plate 140 and the sealing plate surround and define an oil pan groove 131 for use as the oil pan of the diesel engine 100.

[0065] Combination Figure 2 As shown, the mounting panel 160 and the base plate 130 are spaced apart along the height direction Z, and the two mounting panels 160 are spaced apart along the width direction Y. The mounting panel 160 is connected to the top edge of the web plate 140. The mounting panel 160 is provided with a first mounting interface 161 for connecting to the diesel engine 100's engine mount 101, and a vibration isolator 103 is provided at the bottom of the mounting panel 160. The sealing strip 170 is connected to the top edge of the sealing plate for sealing connection with the diesel engine 100's engine mount 101. The pad block 180 is provided with a second mounting interface 181 for connecting to the generator 120.

[0066] According to the composite base of this application, a base plate 130, a web plate 140, and a sealing plate surround and restrict an oil pan groove 131, which serves as the oil pan of the diesel engine 100. It is connected to the diesel engine 100's engine mount 101 via the first mounting interface 161 of the mounting panel 160. Combined with the sealing strip 170, the diesel engine 100 is sealed to the composite base, thus integrating the oil pan function of the diesel engine 100 into the composite base. This reduces the overall weight and height of the diesel engine power unit, saving installation space and manufacturing costs, and facilitating the maintenance of the diesel engine 100. Compared to existing diesel engine 100 oil pans, this composite base has greater weight, strength, and rigidity, which helps reduce the noise of the diesel engine 100. Furthermore, the composite base integrating the diesel engine 100's oil pan function is connected to the generator 120 via the second mounting interface 181 of the pad block 180, integrating the generator 120 and the diesel engine 100 onto the composite base, resulting in a compact structure. The mounting panel 160 is mounted on the hull or other structure via the vibration isolator 103, which helps to reduce the vibration of the diesel engine 100.

[0067] Reference Figure 1 and Figure 2The top surface of the mounting panel 160 is provided with a sealing groove 162, which communicates with the oil pan groove 131. The inner bottom surface of the sealing groove 162 is used to mate with the bottom surface of the engine mount 101 of the diesel engine 100. The end of the sealing strip 170 extends into the sealing groove 162. After the diesel engine 100 is installed, the bottom surface of the engine mount 101 of the diesel engine 100 is embedded in the top surface of the mounting panel 160, and the sealing strip 170 is located at both ends of the engine mount 101 of the diesel engine 100 and is connected to the engine mount 101 by an adhesive (such as glue), thereby sealing the diesel engine 100 and the oil pan groove 131 and preventing lubricating oil from leaking between the diesel engine 100 and the composite base.

[0068] Reference Figure 1 and Figure 3 Multiple transverse baffles 132 are provided inside the oil tank 131, and the multiple transverse baffles 132 are spaced apart along the length direction X. The sides of the transverse baffles 132 are connected to the web plate 140, and the bottom edge of the transverse baffles 132 is connected to the base plate 130. The arrangement of the transverse baffles 132 separates the lubricating oil in the oil tank 131, reduces the fluctuation of the lubricating oil when the composite base shakes, and thus reduces noise.

[0069] Reference Figure 3 An oil pan 131 is provided with an oil pipe 133 for drawing lubricating oil from the oil pan 131 to the diesel engine 100 for lubrication. The sealing plates include a first sealing plate 150 located at one end of the base plate 130 and a second sealing plate 151 located in the middle of the base plate 130. (Combined) Figure 2 As shown, the first sealing plate 150 is provided with an oil pump interface 152 for connecting to the oil pump 102 of the diesel engine 100, and the oil pipe 133 is connected to the oil pump interface 152. When the diesel engine 100 starts, the oil pump 102 draws lubricating oil from the oil pan 131 through the oil pipe 133 into the diesel engine 100, thereby lubricating the power components inside the diesel engine 100. Then, the lubricating oil flows back into the oil pan 131 under the action of gravity. Therefore, the composite base according to this application integrates the oil pan and lubrication system of the diesel engine 100, with a compact structure, simplified lubrication system, reduced cost, and reduced failures.

[0070] Reference Figure 3 The lubricating oil pipe 133 is equipped with a filter 134 to filter the lubricating oil in the oil sump 131, preventing impurities such as metal shavings from entering the lubricating oil system. Furthermore, the first sealing plate 150 is provided with a separator interface 153 for connection to a separator and a filler port 154. During maintenance of the diesel engine 100, personnel connect the separator to the separator interface 153 to separate impurities from the lubricating oil in the oil sump 131. (Refer to...) Figure 4The web plate 140 is provided with a drain hole 143 to facilitate the discharge of waste oil. The staff can then add lubricating oil to the oil tank 131 through the filler port 154 to replace the lubricating oil and complete the maintenance of the diesel engine 100.

[0071] Optionally, refer to Figure 4 The web plate 140 is provided with a maintenance hole 142, which facilitates the maintenance of diesel engine 100 components and the cleaning of oil tank 131 by the staff. The web plate 140 is also provided with a level gauge 144 to help the staff determine the lubricating oil level in the oil tank 131.

[0072] Reference Figure 1 and Figure 3 The oil tank 131 is provided with a first reinforcing rib 135, which is connected to the web plate 140 and the bottom plate 130 respectively, and the first reinforcing rib 135 is spaced apart along the length direction X. Specifically, the side edges of the first reinforcing rib 135 are connected to the inner walls of the two web plates 140 respectively, and the bottom edge of the first reinforcing rib 135 is connected to the bottom plate 130. The provision of the first reinforcing rib 135 strengthens the connection between the bottom plate 130 and the web plate 140, enhances the structural strength of the oil tank 131, and helps reduce noise.

[0073] The composite base according to this application also includes two reinforcing members 190. Each reinforcing member 190 includes a reinforcing plate 191 and a connecting plate 192. The reinforcing plate 191 is parallel to the width direction Y, and its two sides are respectively connected to the inner walls of the two web plates 140. The bottom edge of the reinforcing plate 191 is connected to the bottom plate 130. The connecting plate 192 is horizontally arranged, with both ends connected to the inner walls of the two web plates 140, and its bottom surface connected to the top edge of the reinforcing plate 191. The arrangement of the connecting plate 192 and the reinforcing plate 191 results in a T-shaped cross-section of the reinforcing member 190 along the width direction Y, further strengthening the connection between the web plates 140 and the bottom plate 130, as well as between the web plates 140 themselves. Furthermore, the two reinforcing members 190 are respectively located in the middle of the bottom plate 130 and at the end furthest from the first sealing plate 150. In other words, the two reinforcing members 190 are located at both ends of the generator 120 when the generator 120 is mounted on the composite base. Therefore, the reinforcement members 190 enhance the structural strength of the portion of the composite base below the generator 120 according to this application, so as to meet the load-bearing requirements of the generator 120 on the composite base according to this application.

[0074] To further enhance the structural strength of the composite base located below the generator 120 during installation, a second reinforcing rib 193 is provided between the two reinforcing members 190. The second reinforcing ribs 193 are spaced apart along the length direction X, and are respectively connected to the web plate 140 and the base plate 130. Specifically, the side edges of the second reinforcing ribs 193 are respectively connected to the inner walls of the two web plates 140, and the bottom edge of the second reinforcing ribs 193 is connected to the top surface of the base plate 130.

[0075] Furthermore, refer to Figure 4 The outer wall of the web 140 is provided with ribs 141 arranged at X intervals along the length direction. The ribs 141 are connected to the bottom surface of the mounting panel 160, thereby improving the connection strength between the web 140 and the mounting panel 160 and improving the load-bearing capacity of the composite base according to this application for the diesel engine power unit.

[0076] Optionally, refer to Figures 1 to 3 The mounting panel 160 is provided with a third mounting interface 163 for connecting the lifting lug 104, which facilitates the installation of the lifting lug 104 for hoisting the composite base according to this application.

[0077] Figure 2 A diesel engine power unit according to this application is shown, including the aforementioned composite base, a diesel engine 100, and a generator 120. The diesel engine 100's foot 101 is connected to a mounting panel 160 via a first mounting interface 161, and the foot 101 is sealed to a sealing strip 170 to seal the oil pan 131. The generator 120 is connected to a pad 180. The diesel engine power unit according to this application saves space between the diesel engine 1 and the composite base, has a compact structure, reduces the overall weight of the diesel engine power unit, facilitates maintenance, and has low operating noise.

[0078] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Terms such as “setup” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0079] This application has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this application to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this application, and all such variations and modifications fall within the scope of protection claimed in this application.

Claims

1. A composite base for mounting a diesel engine power unit, the diesel engine power unit comprising a diesel engine and a generator, characterized in that, The composite base includes: Base plate; Two webs, the two webs being spaced apart along the width direction of the base plate, the webs extending along the length direction of the base plate, and the bottom edge of the webs being connected to the edge of the base plate parallel to the length direction; Two sealing plates are provided, with the bottom edge of the sealing plate connected to the bottom plate. The two sides of the sealing plate along the width direction are respectively connected to the two web plates, and the two sealing plates are spaced apart along the length direction. The bottom plate, the web plates and the sealing plates are arranged around and define an oil pan groove for serving as the oil pan of the diesel engine. Two mounting panels are spaced apart from the base plate along the height direction and spaced apart along the width direction. The mounting panels are connected to the top edge of the web plate. The mounting panels are provided with a first mounting interface for connecting to the diesel engine mount, and a vibration isolator is provided at the bottom of the mounting panels. Two sealing strips are provided, each connected to the top edge of one of the two sealing plates and extending along the width direction, for sealing connection with both ends of the diesel engine mounts when the diesel engine is mounted on the mounting panel; and A spacer block is disposed on the mounting panel, and the spacer block is provided with a second mounting interface for connecting to the generator. The mounting panel has a sealing groove on its top surface, which is connected to the oil pan groove. The inner bottom surface of the sealing groove is used to mate with the bottom surface of the diesel engine mount. The first mounting interface is located on the inner bottom surface of the sealing groove, and the end of the sealing strip extends into the sealing groove.

2. The composite base according to claim 1, characterized in that, The oil tank is provided with a plurality of transverse partitions, which are spaced apart along the length direction; the side of the transverse partition is connected to the web plate, and the bottom edge of the transverse partition is connected to the bottom plate.

3. The composite base according to claim 1, characterized in that, The oil sump is provided with an oil pipe for drawing lubricating oil from the oil sump to the diesel engine for lubrication; the sealing plate includes a first sealing plate located at one end of the base plate and a second sealing plate located in the middle of the base plate; the first sealing plate is provided with an oil pump interface for connecting to the diesel engine oil pump, and the oil pipe is connected to the oil pump interface.

4. The composite base according to claim 3, characterized in that, The lubricating pipe is equipped with a filter; and / or The first sealing plate is provided with a separator interface for connection to the separator and an oil filling port.

5. The composite base according to claim 1, characterized in that, The oil tank groove is provided with a first reinforcing rib, which is connected to the web plate and the bottom plate respectively, and the first reinforcing rib is spaced apart along the length direction.

6. The composite base according to claim 1, characterized in that, It also includes two reinforcing members, the cross-section of which is T-shaped along the width direction; the ends of the reinforcing members are connected to the web plate, the bottom of the reinforcing members are connected to the base plate, and the two reinforcing members are located at both ends of the generator when the generator is installed on the composite base.

7. The composite base according to claim 6, characterized in that, A second reinforcing rib is also provided between the reinforcing members. The second reinforcing rib is spaced apart along the length direction and is respectively connected to the web and the bottom plate.

8. The composite base according to claim 1, characterized in that, The outer wall of the web is provided with ribs arranged at intervals along the length direction, and the ribs are connected to the bottom surface of the mounting panel.

9. The composite base according to claim 1, characterized in that, The web is provided with maintenance holes; and / or The web is equipped with a drain hole and a level gauge.

10. The composite base according to claim 1, characterized in that, The mounting panel is provided with a third mounting interface for connecting the lifting lugs.

11. A diesel engine power unit, characterized in that, include: Composite base according to any one of claims 1 to 10; The diesel engine has its engine mount connected to the mounting panel via the first mounting interface, and the engine mount is sealed to the sealing strip to close the oil pan groove. as well as A generator, which is connected to the pad.