Silent energy-saving diesel generator

Abstract

The application relates to the technical field of generators, in particular to a mute and energy-saving diesel generator which comprises a generator body and a sound insulation mechanism, the sound insulation mechanism comprises a sound insulation box, the generator body is located in the inside of the sound insulation box, a sound insulation layer is arranged on the inner wall of the sound insulation box, and an air inlet is arranged on the front side of the sound insulation mechanism. A noise reduction mechanism is installed in the inside of the sound insulation box and is used for elastically supporting the generator body. The generator body is fully closed and isolated by the sound insulation box, the sound insulation layer on the inner wall of the sound insulation box can carry out sound insulation treatment on the noise generated by the generator body, noise generated when the generator body works is prevented from being transmitted to the outside, the mute effect of the generator body is improved, meanwhile, the generator body is suspendedly installed in the inside of the sound insulation box through the fixing frame, when the generator body generates vibration, the generator body is prevented from transmitting the vibration to the sound insulation box, and the sound insulation box is prevented from vibrating.

Description

Technical Field

[0001] This invention relates to the field of generator technology, specifically to a quiet and energy-saving diesel generator. Background Technology

[0002] A diesel generator is a small power generation device that uses diesel fuel and a diesel engine as the prime mover to drive a generator to generate electricity. Its principle is as follows: a brushless synchronous AC generator is mounted coaxially with the crankshaft of the diesel engine. The rotation of the diesel engine crankshaft drives the rotor of the generator. Utilizing the principle of electromagnetic induction, the generator outputs an induced electromotive force, which generates current through a closed load circuit.

[0003] Because diesel generators rely on the combustion of fuel inside the cylinder to drive the piston to reciprocate and rotate the crankshaft, the combustion of fuel inside the cylinder, the movement of the piston and crankshaft, and the vibration of the entire machine all generate considerable noise during operation. This noise can damage hearing, causing tinnitus, ear fullness, and hearing loss. Moreover, low- and mid-frequency noise has strong diffraction and penetration capabilities, which is especially noticeable at night. It is very easy to receive complaints in residential areas, office areas, and dormitories. Therefore, a quiet diesel generator is needed. Summary of the Invention

[0004] To address the aforementioned problems, the present invention provides a quiet and energy-saving diesel generator, comprising a generator body and a sound insulation mechanism. The sound insulation mechanism includes a sound insulation box, with the generator body located inside the sound insulation box. A sound insulation layer is provided on the inner wall of the sound insulation box, and an air inlet is provided on the front side of the sound insulation mechanism.

[0005] A noise reduction mechanism is installed inside a soundproof enclosure to provide elastic support for the generator body.

[0006] An air intake mechanism includes a silencer box fixedly installed inside a soundproof box for silencing the air inlet. The silencer box has a labyrinth circuit inside, and an air intake cylinder for drawing gas into the soundproof box is fixedly connected to the rear side of the silencer box.

[0007] The exhaust mechanism includes an air chamber installed on the generator body, the air chamber being connected to the exhaust port of the generator body, an exhaust pipe being fixedly connected to the top of the air chamber, a plurality of exhaust cylinders being connected to the end of the exhaust pipe away from the air chamber, the top of the exhaust cylinders being connected to the top of the soundproof box through a pipe, and a drive mechanism two for controlling the alternate exhaust of the plurality of exhaust cylinders being installed on the inner wall of the soundproof box.

[0008] In one possible implementation, the sound insulation mechanism further includes heat insulation plates fixedly installed inside the sound insulation box and symmetrically distributed on the left and right sides of the generator body. Heat-conducting fins located on the outer side of the heat insulation plates are fixedly connected to the left and right inner walls of the sound insulation box, and a heat dissipation chamber is fixedly installed on the front side of the sound insulation box.

[0009] In one possible implementation, the noise reduction mechanism includes a fixed frame for supporting and fixing the generator body, with suspension springs installed at the four top corners of the fixed frame. The top ends of the suspension springs are fixedly installed on the inner top wall of the soundproof box. Shock absorbers are symmetrically distributed on both the left and right sides of the fixed frame, and the bottom ends of the shock absorbers are installed on the inner bottom wall of the soundproof box.

[0010] In one possible implementation, a one-way valve is fixedly installed between the air intake and the silencer box, a one-way valve is fixedly installed on the top of the air intake, a piston with a rod is slidably installed inside the air intake, the rear end of the piston with the rod extends to the rear of the air intake, and a drive mechanism for driving the piston with the rod to move back and forth is installed inside the silencer box.

[0011] In one possible implementation, the drive mechanism includes a rotating shaft rotatably mounted on a soundproof box via a support. A turntable is fixedly mounted on the left end of the rotating shaft, and a push rod is rotatably mounted on the left edge of the turntable. A sliding frame located behind the intake cylinder is fixedly connected to the rear end of the piston with rod. The push rod is slidably connected to the sliding frame. A push plate is fixedly mounted on the bottom of the generator body. Racks distributed on the left and right sides are fixedly connected to the front and rear sides of the push plate. Two gears are mounted on the right end of the rotating shaft. Both gears are unidirectionally connected to the rotating shaft via a ratchet and pawl mechanism. The two ratchet and pawl mechanisms rotate in opposite directions. The racks mesh with the corresponding gears.

[0012] In one possible implementation, an impeller is rotatably mounted inside the air chamber, and a drive shaft is coaxially fixedly connected to the central axis of the impeller, with both ends of the drive shaft rotatably extending to the outside of the air chamber.

[0013] In one possible implementation, the drive mechanism two includes a rod piston two that is slidably mounted inside the exhaust cylinder, a one-way valve three is installed between the exhaust cylinder and the exhaust pipe, a one-way valve four is installed in the pipe at the top of the exhaust cylinder, the front end of the rod piston two extends through to the front of the exhaust cylinder, a crankshaft is rotatably mounted inside the soundproof box via another support, a connecting rod corresponding to the rod piston two is rotatably mounted on the crankshaft, the end of the connecting rod away from the crankshaft is hinged to the rear end of the rod piston two, and the right end of the drive shaft is connected to the crankshaft via a belt.

[0014] In one possible implementation, a cooling mechanism is also included, comprising a radiator fixedly installed in a heat dissipation chamber. The top and bottom of the radiator are respectively fixedly connected to an inlet pipe and an outlet pipe. The rear end of the inlet pipe is connected to the water inlet of the generator body, and the rear end of the outlet pipe is fixedly connected to a vortex housing. The vortex housing is fixedly installed on the left side of the air chamber, and a turbine is rotatably installed inside the vortex housing. The left end of the drive shaft rotatably passes through the interior of the vortex housing and is connected to the turbine. The top of the vortex housing is connected to the water outlet of the generator body through a water supply pipe.

[0015] The beneficial effects of this invention are as follows: 1. This invention provides a fully enclosed isolation of the generator body through a soundproof box. The sound insulation layer on the inner wall of the soundproof box can insulate the noise generated by the generator body, preventing the noise generated by the generator body during operation from being transmitted to the outside, thus improving the quietness of the generator body. At the same time, the fixed frame suspends the generator body inside the soundproof box. When the generator body vibrates, the suspension springs buffer the generator body, preventing the generator body from transmitting the vibration to the soundproof box and preventing the soundproof box from vibrating. Meanwhile, the shock absorber plays a role in damping the generator body, suppressing the amplitude of the generator body vibration, reducing the impact of vibration, and preventing the soundproof box from generating noise due to vibration, further improving the quietness of the generator.

[0016] 2. This invention controls the spread of noise to the outside by controlling the rhythm of air intake and exhaust. When outside air enters the silencer box from the air intake, the labyrinth circuit in the silencer box continuously reflects and dissipates the energy of the noise. At the same time, the air intake cylinder alternately intakes and exhausts air to prevent the noise generated by the generator body from spreading to the outside from the air intake. When exhausting air, the drive mechanism two controls several exhaust cylinders to alternately intake and exhaust air. When the exhaust cylinder exhausts air, the exhaust pipe is disconnected from the exhaust cylinder, which can prevent the noise generated by the generator body when exhausting air from spreading directly to the outside with the exhaust gas, further improving the quietness of the generator body when it is working. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a cross-sectional view of the rear side of the present invention.

[0019] Figure 3 This is a cross-sectional view of the left side of the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the noise reduction mechanism of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the air intake mechanism of the present invention.

[0022] Figure 6 This is a three-dimensional structural schematic diagram of the driving mechanism of the present invention.

[0023] Figure 7 This is a three-dimensional structural diagram of the impeller and turbine of the present invention.

[0024] Figure 8 This is a three-dimensional structural diagram of the exhaust cylinder of the present invention.

[0025] Figure 9 This is a cross-sectional view of the left side of the exhaust cylinder of the present invention.

[0026] In the diagram: 1. Generator body; 2. Sound insulation mechanism; 21. Sound insulation box; 22. Sound insulation layer; 23. Heat insulation board; 24. Heat-conducting fins; 25. Air inlet; 26. Heat dissipation chamber; 3. Noise reduction mechanism; 31. Fixed frame; 32. Suspension spring; 33. Shock absorber; 4. Air intake mechanism; 41. Silencer box; 42. Labyrinth circuit; 43. Intake cylinder; 44. One-way valve 1; 45. One-way valve 2; 46. Rod piston 1; 47. Drive mechanism 1; 471. Shaft; 472. Turntable; 4 73. Push rod; 474. Slide frame; 475. Push plate; 476. Rack; 477. Gear; 5. Exhaust mechanism; 51. Air chamber; 52. Exhaust pipe; 53. Exhaust cylinder; 54. Drive mechanism two; 541. Piston with rod two; 542. One-way valve three; 543. One-way valve four; 544. Crankshaft; 545. Connecting rod; 55. Impeller; 551. Drive shaft; 6. Cooling mechanism; 61. Radiator; 62. Inlet pipe; 63. Outlet pipe; 64. Volute; 65. Turbine. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Please see Figure 1 - Figure 9 A quiet and energy-saving diesel generator includes a generator body 1 and a sound insulation mechanism 2. The sound insulation mechanism 2 includes a sound insulation box 21. The generator body 1 is located inside the sound insulation box 21. A sound insulation layer 22 is provided on the inner wall of the sound insulation box 21. The sound insulation layer 22 is one or more of sound insulation felt, sound insulation cotton, and rock wool. An air inlet 25 is provided on the front side of the sound insulation mechanism 2.

[0029] Noise reduction mechanism 3 is installed inside the soundproof box 21 to provide elastic support for the generator body 1.

[0030] The air intake mechanism 4 includes a silencer box 41 fixedly installed inside the soundproof box 21 for silencing the air inlet 25. The silencer box 41 has a labyrinth circuit 42 inside, and an air intake cylinder 43 for drawing gas into the soundproof box 21 is fixedly connected to the rear side of the silencer box 41.

[0031] The exhaust mechanism 5 includes an air chamber 51 installed on the generator body 1. The air chamber 51 is connected to the exhaust port of the generator body 1. An exhaust pipe 52 is fixedly connected to the top of the air chamber 51. A number of exhaust cylinders 53 are connected to the end of the exhaust pipe 52 away from the air chamber 51. The top of the exhaust cylinders 53 is connected to the top of the soundproof box 21 through a pipe. A drive mechanism 2 54 for controlling the alternate exhaust of the number of exhaust cylinders 53 is installed on the inner wall of the soundproof box 21.

[0032] In practical use, the generator body 1 is completely enclosed by the soundproof box 21. The sound insulation layer 22 on the inner wall of the soundproof box 21 can insulate the noise generated by the generator body 1, preventing the noise generated by the generator body 1 from being transmitted to the outside when it is working, thus improving the quietness of the generator body 1. At the same time, the noise reduction mechanism 3 provides elastic support for the generator body 1, so that the generator body 1 is suspended inside the soundproof box 21. In this way, the vibration generated by the generator body 1 when it is working cannot be transmitted to the soundproof box 21, thus preventing the soundproof box 21 from generating noise due to shaking, further improving the quietness of the generator body 1 when it is working.

[0033] During operation, outside air enters the silencer box 41 through the air inlet 25, and then the air in the silencer box 41 is transported to the soundproof box 21 by the air intake 43. The labyrinth circuit 42 in the silencer box 41 can continuously reflect and dissipate the energy of noise, preventing the noise generated by the generator body 1 from being transmitted to the outside through the air inlet 25, ensuring the quietness of the generator body 1 during operation, and meeting the oxygen consumption requirements of the generator body 1 during operation.

[0034] When the generator body 1 is working, the exhaust gas is first discharged into the gas chamber 51, and then transported to the exhaust cylinder 53 through the exhaust pipe 52. The drive mechanism 2 54 controls several exhaust cylinders 53 to alternately perform intake and exhaust. When the exhaust cylinder 53 is exhausting, the exhaust pipe 52 and the exhaust cylinder 53 are disconnected, which can prevent the noise generated by the generator body 1 during exhaust from spreading directly to the outside along with the exhaust gas, and further improve the quietness of the generator body 1 during operation.

[0035] Please see Figure 1 , Figure 2 and Figure 3The sound insulation mechanism 2 also includes heat insulation plates 23 that are fixedly installed inside the sound insulation box 21 and symmetrically distributed on the left and right sides of the generator body 1. Heat-conducting fins 24 located on the outside of the heat insulation plates 23 are fixedly connected to the left and right inner walls of the sound insulation box 21. A heat dissipation chamber 26 is fixedly installed on the front side of the sound insulation box 21.

[0036] In practical use, the heat generated when the generator body 1 is working will raise the temperature of the gas between the two heat insulation plates 23, causing the gas between the two heat insulation plates 23 to flow upward. At the same time, the gas located outside the heat insulation plate 23 will transfer heat to the heat-conducting fins 24, and the heat-conducting fins 24 will transfer heat to the soundproof box 21. The soundproof box 21 will then transfer the heat to the external environment, causing the temperature of the gas outside the heat insulation plate 23 to decrease and flow downward. In this way, the gas inside and outside the heat insulation plate 23 will form a circulation, and the flowing gas will continuously carry away the heat generated when the generator body 1 is working, which helps to cool down the generator body 1 and prevent the generator body 1 from overheating in the fully enclosed generator body 1.

[0037] Please see Figure 2 and Figure 4 The noise reduction mechanism 3 includes a fixed frame 31 for supporting and fixing the generator body 1. Suspension springs 32 are installed at the four corners of the top of the fixed frame 31. The top of the suspension springs 32 is fixedly installed on the inner top wall of the soundproof box 21. Shock absorbers 33 are symmetrically distributed on the left and right sides of the fixed frame 31. The bottom of the shock absorbers 33 is installed on the inner bottom wall of the soundproof box 21.

[0038] In practical use, the generator body 1 is suspended and installed inside the soundproof box 21 by the fixed frame 31. When the generator body 1 vibrates, the suspension spring 32 is used to buffer the generator body 1, preventing the generator body 1 from transmitting the vibration to the soundproof box 21 and preventing the soundproof box 21 from vibrating. At the same time, the shock absorber 33 plays a role in damping the generator body 1, suppressing the amplitude of the vibration of the generator body 1, reducing the impact of the vibration, and preventing the soundproof box 21 from generating noise due to vibration, thereby further improving the quietness of the generator.

[0039] Please see Figure 3 , Figure 5 A one-way valve 44 is fixedly installed between the air intake 43 and the silencer box 41. A one-way valve 45 is fixedly installed on the top of the air intake 43. The one-way valve 44 is a one-way air intake valve, and the one-way valve 45 is a one-way air outlet valve. A rod piston 46 is slidably installed inside the air intake 43. The rear end of the rod piston 46 extends to the rear of the air intake 43. A drive mechanism 47 for driving the rod piston 46 to move back and forth is installed inside the soundproof box 21.

[0040] Please see Figure 3 , Figure 5 and Figure 6 The drive mechanism 47 includes a rotating shaft 471 rotatably mounted on the soundproof box 21 via a support. A turntable 472 is fixedly mounted on the left end of the rotating shaft 471. A push rod 473 is rotatably mounted on the left edge of the turntable 472. A sliding frame 474 located behind the intake cylinder 43 is fixedly connected to the rear end of the rod piston 46. The push rod 473 and the sliding frame 474 are slidably connected up and down. A push plate 475 is fixedly mounted on the bottom of the generator body 1. A rack 476 distributed on the left and right sides is fixedly connected to the front and rear sides of the push plate 475. Two gears 477 are mounted on the right end of the rotating shaft 471. Both gears 477 are unidirectionally connected to the rotating shaft 471 through a ratchet and pawl mechanism. The two ratchet and pawl mechanisms rotate in opposite directions. The rack 476 meshes with the corresponding gear 477.

[0041] In practical use, the vibration of the generator body 1 drives the push plate 475 to move up and down. The push plate 475 drives the two racks 476 to move up and down. The racks 476 drive the corresponding gears 477 to rotate in both directions. When the gears 477 rotate clockwise, they can drive the rotating shaft 471 to rotate through the ratchet and pawl mechanism. Conversely, when the gears 477 rotate counterclockwise, they cannot drive the rotating shaft 471 to rotate through the ratchet and pawl mechanism. By setting two gears 477 and the racks 476 to be located on the front and rear sides of the rotating shaft 471 respectively, the rotating shaft 471 can be driven to rotate regardless of whether the push plate 475 moves up or down.

[0042] The rotating shaft 471 drives the turntable 472 to rotate, and the turntable 472 drives the push rod 473 to rotate circumferentially. The push rod 473 pushes the slide frame 474 to move back and forth. The slide frame 474 pulls the rod piston 46 to move back and forth. When the rod piston 46 moves backward, the air in the silencer box 41 is drawn into the intake cylinder 43 through the one-way valve 44. At this time, the one-way valve 45 is closed. When the rod piston 46 moves forward, the one-way valve 44 closes and the one-way valve 45 opens. At this time, the gas in the intake cylinder 43 is transported to the inner cavity of the soundproof box 21, which can cool the generator body 1 and meet the oxygen consumption needs of the generator body 1 during operation.

[0043] Please see Figure 3 and Figure 7 An impeller 55 is rotatably mounted inside the air chamber 51. A drive shaft 551 is coaxially fixedly connected to the central axis of the impeller 55. Both ends of the drive shaft 551 rotatably extend to the outside of the air chamber 51.

[0044] Please see Figure 3 , Figure 7 , Figure 8 and Figure 9The drive mechanism 2 54 includes a rod piston 2 541 that is slidably mounted inside the exhaust cylinder 53. A one-way valve 3 542 is installed between the exhaust cylinder 53 and the exhaust pipe 52. A one-way valve 4 543 is installed in the pipe at the top of the exhaust cylinder 53. The front end of the rod piston 2 541 extends to the front of the exhaust cylinder 53. A crankshaft 544 is rotatably mounted inside the soundproof box 21 via another support. A connecting rod 545 corresponding to the rod piston 2 541 is rotatably mounted on the crankshaft 544. The end of the connecting rod 545 away from the crankshaft 544 is hinged to the rear end of the rod piston 2 541. The movement directions of two adjacent rod pistons 2 541 are opposite. The right end of the drive shaft 551 is connected to the crankshaft 544 via a belt.

[0045] In practical use, the exhaust gas discharged from the generator body 1 drives the impeller 55 to rotate, the impeller 55 drives the drive shaft 551 to rotate, the drive shaft 551 drives the crankshaft 544 to rotate via a belt, and the crankshaft 544 drives the rod piston 541 to move back and forth via the connecting rod 545. When the rod piston 541 moves forward, the one-way valve 542 opens and the one-way valve 543 closes. At this time, the exhaust gas is drawn into the exhaust cylinder 53 through the exhaust pipe 52. When the rod piston 541 moves backward, the one-way valve 542 closes and the one-way valve 543 opens. At this time, the exhaust gas is discharged to the outside of the soundproof box 21 through the pipe at the top of the exhaust cylinder 53. Since the one-way valve 542 is in the closed state when the exhaust gas is discharged, noise can be prevented from spreading out along the exhaust pipe 52 and the exhaust cylinder 53, further providing a quiet effect.

[0046] Since the pistons 541 with rods in the two adjacent exhaust cylinders 53 move in opposite directions, when one exhaust cylinder 53 is in the exhaust state, the other exhaust cylinder 53 is in the intake state. By alternating between intake and exhaust, the rhythm of exhaust gas discharge can be controlled, which can prevent noise from spreading to the outside along with the exhaust gas, and also ensure that the exhaust gas is discharged continuously, avoiding the situation of poor exhaust. Moreover, the entire exhaust process is driven by the power generated when the exhaust gas is discharged, without the need for additional energy consumption, which is more energy-efficient.

[0047] Please see Figure 3 , Figure 4 and Figure 7 It also includes a cooling mechanism 6, which includes a cooling radiator 61 fixedly installed in the heat dissipation chamber 26. The top and bottom of the cooling radiator 61 are respectively fixedly connected to a water inlet pipe 62 and a water outlet pipe 63. The rear end of the water inlet pipe 62 is connected to the water inlet of the generator body 1. The rear end of the water outlet pipe 63 is fixedly connected to a vortex housing 64. The vortex housing 64 is fixedly installed on the left side of the air chamber 51. A turbine 65 is rotatably installed inside the vortex housing 64. The left end of the drive shaft 551 rotatably passes through the inside of the vortex housing 64 and is connected to the turbine 65. The top of the vortex housing 64 is connected to the water outlet of the generator body 1 through a water supply pipe.

[0048] In practical use, the exhaust gas drives the impeller 55 to rotate, and the impeller 55 drives the turbine 65 to rotate through the transmission shaft 551. The turbine 65 drives the coolant to flow into the outlet pipe 63, and the outlet pipe 63 delivers the coolant to the radiator 61 for heat dissipation. The cooled coolant is then delivered to the generator body 1 through the inlet pipe 62, which can cool the generator body 1 and prevent the generator body 1 from overheating during operation. The coolant heated by the generator body 1 flows back into the volute 64 to form a circulation loop, ensuring the cooling effect of the generator body 1 during operation.

[0049] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, or a sliding connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A silent and energy-saving diesel generator, comprising a generator body (1), characterized in that, Also includes: The sound insulation mechanism (2) includes a sound insulation box (21), the generator body (1) is located inside the sound insulation box (21), the inner wall of the sound insulation box (21) is provided with a sound insulation layer (22), and the front side of the sound insulation mechanism (2) is provided with an air inlet (25). Noise reduction mechanism (3), which is installed inside the soundproof box (21) to provide elastic support for the generator body (1); The air intake mechanism (4) includes a silencer box (41) fixedly installed inside the soundproof box (21) for silencing the air inlet (25). The silencer box (41) is provided with a labyrinth circuit (42) inside. An air intake cylinder (43) for drawing gas into the soundproof box (21) is fixedly connected to the rear side of the silencer box (41). The exhaust mechanism (5) includes an air chamber (51) installed on the generator body (1), the air chamber (51) is connected to the exhaust port of the generator body (1), the top of the air chamber (51) is fixedly connected to an exhaust pipe (52), the end of the exhaust pipe (52) away from the air chamber (51) is connected to a number of exhaust cylinders (53), the top of the exhaust cylinders (53) is connected to the top of the soundproof box (21) through a pipe, and a second drive mechanism (54) for controlling the alternate exhaust of the number of exhaust cylinders (53) is installed on the inner wall of the soundproof box (21).

2. The silent and energy-saving diesel generator according to claim 1, characterized in that: The sound insulation mechanism (2) also includes heat insulation plates (23) that are fixedly installed inside the sound insulation box (21) and symmetrically distributed on the left and right sides of the generator body (1). Heat-conducting fins (24) located outside the heat insulation plates (23) are fixedly connected to the left and right inner walls of the sound insulation box (21). A heat dissipation chamber (26) is fixedly installed on the front side of the sound insulation box (21).

3. The silent and energy-saving diesel generator according to claim 1, characterized in that: The noise reduction mechanism (3) includes a fixed frame (31) for supporting and fixing the generator body (1). Suspension springs (32) are installed at the four corners of the top of the fixed frame (31). The top of the suspension springs (32) is fixedly installed on the inner top wall of the soundproof box (21). Shock absorbers (33) are symmetrically distributed on the left and right sides of the fixed frame (31). The bottom of the shock absorbers (33) is installed on the inner bottom wall of the soundproof box (21).

4. A silent and energy-saving diesel generator according to claim 1, characterized in that: A one-way valve (44) is fixedly installed between the air intake (43) and the silencer box (41). A one-way valve (45) is fixedly installed on the top of the air intake (43). A piston with a rod (46) is slidably installed inside the air intake (43). The rear end of the piston with a rod (46) extends to the rear of the air intake (43). A drive mechanism (47) for driving the piston with a rod (46) to move back and forth is installed inside the soundproof box (21).

5. A silent and energy-saving diesel generator according to claim 4, characterized in that: The drive mechanism (47) includes a rotating shaft (471) rotatably mounted on a soundproof box (21) via a support. A turntable (472) is fixedly mounted on the left end of the rotating shaft (471). A push rod (473) is rotatably mounted on the left edge of the turntable (472). A sliding frame (474) located behind the intake cylinder (43) is fixedly connected to the rear end of the piston (46) with a rod. The push rod (473) and the sliding frame (474) are slidably connected up and down. A push plate (475) is fixedly mounted on the bottom of the generator body (1). A rack (476) is fixedly connected to the front and rear sides of the push plate (475) and distributed on the left and right sides. Two gears (477) are mounted on the right end of the rotating shaft (471). Both gears (477) are unidirectionally connected to the rotating shaft (471) through a ratchet and pawl mechanism. The two ratchet and pawl mechanisms rotate in opposite directions. The rack (476) meshes with the corresponding gear (477).

6. A silent and energy-saving diesel generator according to claim 1, characterized in that: An impeller (55) is rotatably mounted inside the air chamber (51). A drive shaft (551) is coaxially fixedly connected to the central axis of the impeller (55). Both ends of the drive shaft (551) rotatably extend to the outside of the air chamber (51).

7. A silent and energy-saving diesel generator according to claim 6, characterized in that: The second drive mechanism (54) includes a second piston with a rod (541) that is slidably mounted inside the exhaust cylinder (53). A third check valve (542) is installed between the exhaust cylinder (53) and the exhaust pipe (52). A fourth check valve (543) is installed in the pipe at the top of the exhaust cylinder (53). The front end of the second piston with a rod (541) extends through to the front of the exhaust cylinder (53). A crankshaft (544) is rotatably mounted inside the soundproof box (21) via another support. A connecting rod (545) corresponding to the second piston with a rod (541) is rotatably mounted on the crankshaft (544). The end of the connecting rod (545) away from the crankshaft (544) is hinged to the rear end of the second piston with a rod (541). The right end of the drive shaft (551) is connected to the crankshaft (544) via a belt.

8. A silent and energy-saving diesel generator according to claim 6, characterized in that: It also includes a cooling mechanism (6), which includes a heat dissipation radiator (61) fixedly installed in the heat dissipation chamber (26). The top and bottom of the heat dissipation radiator (61) are respectively fixedly connected to an inlet pipe (62) and an outlet pipe (63). The rear end of the inlet pipe (62) is connected to the water inlet of the generator body (1). The rear end of the outlet pipe (63) is fixedly connected to a vortex housing (64). The vortex housing (64) is fixedly installed on the left side of the air chamber (51). A turbine (65) is rotatably installed inside the vortex housing (64). The left end of the drive shaft (551) rotatably passes through the inside of the vortex housing (64) and is connected to the turbine (65). The top of the vortex housing (64) is connected to the water outlet of the generator body (1) through a water supply pipe.

Images