A high-power single-cylinder diesel silent generator set
By installing a flywheel fan and cooling holes in a single-cylinder diesel silent generator set, the heat dissipation path is optimized, solving the problem of insufficient heat dissipation during high-power operation and achieving efficient heat dissipation and improved power generation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN EVERSTRONG LEGA POWER EQUIP CO LTD
- Filing Date
- 2025-09-24
- Publication Date
- 2026-07-07
AI Technical Summary
Existing single-cylinder diesel silent generator sets have insufficient heat dissipation capacity when operating at high power, resulting in heat accumulation and affecting operational stability and power generation efficiency.
A flywheel fan is used as the active heat dissipation source, and heat dissipation holes are opened on the front sealing plate, rear sealing plate and soundproof door plate to construct a forced convection air duct. Combined with the reasonable arrangement of the oil tank and motor, the heat dissipation path is optimized to improve heat dissipation performance.
It effectively solves the problem of heat accumulation under high power operation, improves the heat dissipation performance of generator sets, extends the life of electronic components, and improves power generation efficiency.
Smart Images

Figure CN224469216U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diesel generator technology, and in particular to a high-power single-cylinder diesel silent generator set. Background Technology
[0002] Traditional single-cylinder diesel silent generator sets typically range in power from 2 to 7 kW. With continuous advancements in single-cylinder diesel engine technology, generator set output power has steadily increased, with models now exceeding 9 kW. However, this increased power has also led to a significant increase in heat generated during operation.
[0003] Currently, most single-cylinder diesel silent generator sets have a compact outer casing and limited internal space, often employing a closed-loop exhaust duct design. This structure is insufficient for heat dissipation when generating high power, making it difficult to effectively dissipate the large amounts of heat generated by the power unit. High-temperature exhaust gases accumulate inside the engine cavity and cannot dissipate in time, easily leading to heat buildup. This not only affects the generator set's operational stability but also reduces power generation efficiency.
[0004] In summary, the existing casing structure of silent generator sets is insufficient to meet the heat dissipation requirements of high-power single-cylinder diesel generator sets. Therefore, how to provide a high-power single-cylinder diesel silent generator set that improves the heat dissipation performance has become an urgent technical problem to be solved. Summary of the Invention
[0005] The technical problem to be solved by this utility model is to provide a high-power single-cylinder diesel silent generator set to improve the heat dissipation performance of the generator set.
[0006] This utility model is implemented as follows: A high-power single-cylinder diesel silent generator set, comprising:
[0007] A chassis;
[0008] A front sealing plate is vertically installed at the front of the top of the chassis, and a power end maintenance plate is provided thereon;
[0009] A rear end plate is vertically installed at the rear of the top of the chassis, and a motor end maintenance plate is provided thereon;
[0010] Two soundproof door panels are vertically installed on the side of the top of the chassis, located between the front sealing plate and the rear sealing plate, and are rotatably connected to the rear sealing plate;
[0011] A top cover plate is provided at the top of the front sealing plate, the rear sealing plate and the soundproof door panel, and a top cover maintenance plate is provided;
[0012] A motor partition is vertically mounted on the top of the chassis and matches the rear cover plate;
[0013] A control panel is located on the front cover plate;
[0014] A motor is located at the center of the top of the chassis, is limited by the motor partition, and is connected to the control panel;
[0015] An engine is located at the center of the top of the chassis, with its power output end connected to the motor and its control end connected to the control panel;
[0016] An oil tank is located inside the front sealing plate, and its oil outlet is connected to the oil inlet of the engine.
[0017] A flywheel fan is located at the end of the engine and connected to the control panel;
[0018] A muffler is located inside the rear cover and connected to the control panel.
[0019] Furthermore, the front sealing plate, rear sealing plate, and soundproof door panel are all provided with several heat dissipation holes.
[0020] Furthermore, the chassis is equipped with four rollers at its bottom.
[0021] The advantages of this utility model are:
[0022] 1. By setting a flywheel fan as an active heat dissipation source and opening heat dissipation holes on the front end plate, rear end plate and soundproof door plate, a forced convection air duct is constructed: external cold air is drawn in from the front and side, flows through the motor and engine to carry away heat, and is then forced out from the rear by the fan, thus efficiently solving the problem of heat accumulation under high power operation and greatly improving the heat dissipation performance of the generator set.
[0023] 2. By placing the fuel tank and control panel in the air intake area (cavity), the low ambient temperature helps maintain fuel temperature and improves the lifespan of electronic components. By placing the motor and engine in the middle of the top of the chassis (intermediate cavity), the fuel tank and sealed exhaust box are eliminated, making the intermediate cavity more spacious and allowing the flywheel fan's cooling airflow to exit more smoothly. By separately arranging the motor's stator and rotor in the lower part of the rear end plate (limited by the motor partition), the negative impact of heat sources such as the engine, muffler, and cooling airflow is effectively prevented, significantly reducing motor temperature rise and improving motor power generation efficiency and motor lifespan. Attached Figure Description
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] Figure 1 This is one of the structural schematic diagrams of a high-power single-cylinder diesel silent generator set according to this utility model.
[0026] Figure 2 This is the second structural schematic diagram of a high-power single-cylinder diesel silent generator set according to this utility model.
[0027] Figure 3 This is a perspective view of a high-power single-cylinder diesel silent generator set according to this utility model.
[0028] Figure 4 This is an exploded view of a high-power single-cylinder diesel silent generator set according to this utility model.
[0029] Marker explanation:
[0030] 100-A high-power single-cylinder diesel silent generator set, 1-chassis, 2-front end plate, 3-rear end plate, 4-soundproof door plate, 5-top cover plate, 6-motor partition plate, 7-control panel, 8-motor, 9-engine, 10-fuel tank, 20-flywheel fan, 30-muffler, 11-roller, 21-power end maintenance plate, 31-motor end maintenance plate, 41-heat dissipation hole, 51-top cover maintenance plate. Detailed Implementation
[0031] This utility model provides a high-power single-cylinder diesel silent generator set, which solves the technical problem that existing single-cylinder diesel silent generator sets have a relatively compact outer shell structure, small internal space, and mostly adopt a closed heat exhaust duct design, resulting in insufficient heat dissipation capacity when facing high-power power generation. It achieves a technical effect of greatly improving the heat dissipation performance of the generator set.
[0032] The technical solution in this embodiment of the utility model is to solve the above problems. The overall idea is as follows: a flywheel fan 20 is set as an active heat dissipation source, and heat dissipation holes 41 are opened on the front sealing plate 2, the rear sealing plate 3 and the soundproof door plate 4 to jointly construct a forced convection air duct; the oil tank 10 and the control panel 7 are set on the front sealing plate 2 where the ambient temperature is low, and the motor 8 and the engine 9 are set on the top center of the chassis 1. The oil tank 10 and the sealed heat exhaust box are removed from the middle cavity, so that the heat dissipation airflow of the flywheel fan 20 can be discharged more smoothly from here; the main body of the motor 8, such as the stator and rotor, is arranged separately on the lower part of the rear sealing plate 3 to effectively prevent the negative impact of heat sources such as the engine 9, the muffler 30 and the heat dissipation airflow, so as to improve the heat dissipation performance.
[0033] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0034] Please refer to Figures 1 to 4 As shown, a preferred embodiment of the high-power single-cylinder diesel silent generator set 100 of this utility model includes:
[0035] A chassis 1 is used to support the generator set 100;
[0036] A front sealing plate 2 is vertically disposed at the front of the top of the chassis 1, and a power end maintenance plate 21 is provided thereon;
[0037] A rear sealing plate 3 is vertically installed at the rear of the top of the chassis 1, and a motor end maintenance plate 31 is provided thereon;
[0038] Two soundproof door panels 4 are vertically installed on the side of the top of the chassis 1, located between the front sealing plate 2 and the rear sealing plate 3, and are rotatably connected to the rear sealing plate 3; the soundproof door panels 4 are used to improve the noise reduction performance of the generator set 100.
[0039] A top cover plate 5 is provided at the top of the front sealing plate 2, the rear sealing plate 3 and the soundproof door plate 4, and a top cover maintenance plate 51 is provided;
[0040] A motor partition 6 is vertically mounted on the top of the chassis 1 and matches the rear sealing plate 3;
[0041] A control panel 7 is located on the front cover plate 2 and is used to control the operation of the generator set 100;
[0042] A motor 8 is located at the center of the top of the chassis 1, is limited by the motor partition 6, and is connected to the control panel 7;
[0043] An engine 9 is located at the center of the top of the chassis 1, with its power output end connected to the motor 8 and its control end connected to the control panel 7;
[0044] An oil tank 10 is located inside the front sealing plate 2, and its oil outlet (not shown) is connected to the oil inlet (not shown) of the engine 9.
[0045] A flywheel fan 20 is located at the end of the engine 9 and connected to the control panel 7 for active cooling of the generator set 100;
[0046] A muffler 30 is disposed inside the rear cover plate 3 and connected to the control panel 7 for reducing the noise of the generator set 100.
[0047] The front sealing plate 2, the rear sealing plate 3, and the soundproof door plate 4 are all provided with a number of heat dissipation holes 41 to improve the overall heat dissipation performance.
[0048] The bottom of the chassis 1 is provided with four rollers 11 for transplanting the generator set 100.
[0049] Working principle of this utility model:
[0050] The generator set 100 is started via the control panel 7. The engine 9 receives diesel fuel from the fuel tank 10, burns the diesel fuel to convert thermal energy into mechanical energy, and drives the motor 8 to generate electricity. During the power generation process, the flywheel fan 20 provides active cooling, and the muffler 30 reduces noise.
[0051] In summary, the advantages of this utility model are as follows:
[0052] 1. By setting a flywheel fan as an active heat dissipation source and opening heat dissipation holes on the front end plate, rear end plate and soundproof door plate, a forced convection air duct is constructed: external cold air is drawn in from the front and side, flows through the motor and engine to carry away heat, and is then forced out from the rear by the fan, thus efficiently solving the problem of heat accumulation under high power operation and greatly improving the heat dissipation performance of the generator set.
[0053] 2. By placing the fuel tank and control panel in the air intake area (cavity), the low ambient temperature helps maintain fuel temperature and improves the lifespan of electronic components. By placing the motor and engine in the middle of the top of the chassis (intermediate cavity), the fuel tank and sealed exhaust box are eliminated, making the intermediate cavity more spacious and allowing the flywheel fan's cooling airflow to exit more smoothly. By separately arranging the motor's stator and rotor in the lower part of the rear end plate (limited by the motor partition), the negative impact of heat sources such as the engine, muffler, and cooling airflow is effectively prevented, significantly reducing motor temperature rise and improving motor power generation efficiency and motor lifespan.
[0054] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.
Claims
1. A high-power single-cylinder diesel silent generator set, characterized in that: include: A chassis; A front sealing plate is vertically installed at the front of the top of the chassis, and a power end maintenance plate is provided thereon; A rear end plate is vertically installed at the rear of the top of the chassis, and a motor end maintenance plate is provided thereon; Two soundproof door panels are vertically installed on the side of the top of the chassis, located between the front sealing plate and the rear sealing plate, and are rotatably connected to the rear sealing plate; A top cover plate is provided at the top of the front sealing plate, the rear sealing plate and the soundproof door panel, and a top cover maintenance plate is provided; A motor partition is vertically mounted on the top of the chassis and matches the rear cover plate; A control panel is located on the front cover plate; A motor is located at the center of the top of the chassis, is limited by the motor partition, and is connected to the control panel; An engine is located at the center of the top of the chassis, with its power output end connected to the motor and its control end connected to the control panel; An oil tank is located inside the front sealing plate, and its oil outlet is connected to the oil inlet of the engine. A flywheel fan is located at the end of the engine and connected to the control panel; A muffler is located inside the rear cover and connected to the control panel.
2. The high-power single-cylinder diesel silent generator set as described in claim 1, characterized in that: The front sealing plate, rear sealing plate, and soundproof door panel are all provided with several heat dissipation holes.
3. The high-power single-cylinder diesel silent generator set as described in claim 1, characterized in that: The chassis has four rollers at the bottom.