CN116220900A - Diesel engine capable of silencing - Google Patents

Diesel engine capable of silencing Download PDF

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Publication number
CN116220900A
CN116220900A CN202310381766.8A CN202310381766A CN116220900A CN 116220900 A CN116220900 A CN 116220900A CN 202310381766 A CN202310381766 A CN 202310381766A CN 116220900 A CN116220900 A CN 116220900A
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CN
China
Prior art keywords
fixedly connected
pipe
water tank
water
wall
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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.)
Pending
Application number
CN202310381766.8A
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Chinese (zh)
Inventor
邹国祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HEFEI CALSION ELECTRIC SYSTEM CO Ltd
Original Assignee
HEFEI CALSION ELECTRIC SYSTEM CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HEFEI CALSION ELECTRIC SYSTEM CO Ltd filed Critical HEFEI CALSION ELECTRIC SYSTEM CO Ltd
Priority to CN202310381766.8A priority Critical patent/CN116220900A/en
Publication of CN116220900A publication Critical patent/CN116220900A/en
Pending legal-status Critical Current

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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
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P9/00—Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00
    • F01P9/04—Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00 by simultaneous or alternative use of direct air-cooling and liquid cooling
    • 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
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/11—Thermal or acoustic insulation
    • F02B77/13—Acoustic insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Thermal Sciences (AREA)
  • Exhaust Silencers (AREA)

Abstract

The invention discloses a silent diesel engine, which belongs to the field of engine equipment, and comprises a protective box and an engine body, wherein a water tank and an exhaust pipe are arranged on the engine body; the side wall of the protective box is fixedly connected with a water tank and a water supply pump, and the input end of the water supply pump is communicated with the interior of the water tank; through the sound-absorbing cotton boards that set up the multiunit in the connecting pipe is inside, when passing between the sound-absorbing cotton boards of multiunit, carry out multistage absorption to sound through the inside cavity of sound-absorbing cotton boards, reduce the sound and follow the inside outgoing of connecting pipe.

Description

Diesel engine capable of silencing
Technical Field
The invention relates to the technical field of engine equipment, in particular to a silent diesel engine.
Background
The diesel engine is an engine for obtaining energy release by combusting diesel, has the advantages of large torque and good economic performance, and can generate larger noise and shake when in operation due to the strong power generated by the large torque, so that the use experience of a user is affected, and meanwhile, a large amount of heat can be generated when the diesel engine unit is in operation, if the diesel engine unit is not cooled in time, the diesel engine unit is easy to burn.
In the prior art, a means for reducing noise of an engine is generally to add a protective cover capable of isolating sound outside the engine, but the use of the protective cover has the following problems: 1. if the protective cover is arranged in a full-sealing way, although the protective cover can provide good noise reduction, the engine is not cooled, the engine can be damaged after long-time work, and meanwhile, if a ventilation cooling hole is formed in the protective cover for cooling, the noise can be transmitted from the ventilation cooling position, the noise reduction effect is reduced, and the noise reduction and the cooling of the engine are mutually influenced; 2. the engine is placed inside the protection casing, and the exhaust end of engine needs to extend from the protection casing inside, if the blast pipe is connected with the protection casing, and the vibrations that the blast pipe produced when the exhaust will drive the protection casing vibrations, produce bigger noise, if clearance setting between blast pipe and the protection casing simultaneously, the blast pipe will collide with the protection casing when vibrations, also can produce vibrations.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a silent diesel engine so as to solve the problems of heat dissipation and exhaust noise caused by noise reduction by arranging a protective cover in the prior art.
The aim of the invention can be achieved by the following technical scheme:
the diesel engine capable of silencing comprises a protective box and an engine body, wherein a water tank and an exhaust pipe are arranged on the engine body, connecting pipes are fixedly connected to two sides of the protective box, a group of radiating fans are arranged inside the connecting pipes, a plurality of groups of sound-absorbing cotton plates are arranged inside the connecting pipes in a staggered mode up and down, a plurality of groups of dampers are fixedly connected to the inner wall of the bottom of the protective box, a mounting plate is fixedly connected to the top of each damper, and a buffer spring is sleeved on the outer wall of each damper; the side wall of the protective box is fixedly connected with a water tank and a water supply pump, the input end of the water supply pump is communicated with the interior of the water tank, the output end of the water supply pump is communicated with a water tank through a water inlet pipe, and the water tank is communicated with the bottom of the water tank through a water outlet pipe.
As a further scheme of the invention: the utility model discloses a protection box, including mounting panel, fixed plate, fixed rod, vibration isolation spring, mounting panel both sides inside fixedly connected with dead lever, mounting panel both ends fixedly connected with fixed plate, the spout has been seted up to the fixed plate inside, dead lever sliding connection is inside the spout, the fixed rod outer wall cover is equipped with vibration isolation spring, vibration isolation spring's both ends offset with the inside and fixed plate lateral wall of protection box respectively.
As a further scheme of the invention: and the inner wall of the protective box is fixedly connected with soundproof cotton.
As a further scheme of the invention: the protection box is characterized in that a through groove is formed in the top of the protection box, the exhaust pipe penetrates through the groove and extends to the outer side of the protection box, an elastic sleeve is fixedly connected to the outer wall of the through groove, a heat dissipation ring is fixedly connected to the top of the elastic sleeve, and the heat dissipation ring is fixedly connected to the outer wall of the exhaust pipe.
As a further scheme of the invention: the two ends of the heat dissipation ring are respectively fixedly connected with a water supply pipe and a water drain pipe, one end of the water supply pipe, which is far away from the heat dissipation ring, is connected with the output end of the water supply pump, and the water drain pipe penetrates through the protective box and is communicated with the water outlet pipe.
As a further scheme of the invention: the inner wall of the bottom of the protection box is provided with an air bag, two ends of the air bag are respectively propped against the inner wall of the bottom of the protection box and the mounting plate, one side of the air bag is fixedly connected with an air supply pipe, and one end, far away from the air bag, of the air supply pipe penetrates through the protection box and is communicated with the water tank.
As a further scheme of the invention: the water tank is internally and fixedly connected with a partition board, one side of the partition board is fixedly connected with an air jet pipe, a plurality of groups of air outlet grooves are formed in the top of the air jet pipe, and the air jet pipe is communicated with the air supply pipe.
As a further scheme of the invention: the utility model discloses a water tank, including basin, slide bar, air supply pipe, slide bar, basin one side fixedly connected with sliding sleeve, the air supply pipe is linked together with the sliding sleeve, the inside sliding connection of sliding sleeve has the slide bar, slide bar one end runs through the sliding sleeve and fixedly connected with movable block, the movable block slides in the baffle both sides, slide bar outer wall cover is equipped with reset spring, reset spring's both ends offset with sliding sleeve and slide bar respectively.
The invention has the beneficial effects that:
according to the invention, the plurality of groups of sound-absorbing cotton plates are arranged in the connecting pipe in a staggered manner, when sound passes through the plurality of groups of sound-absorbing cotton plates, the sound is absorbed in multiple stages through the cavities in the sound-absorbing cotton plates, so that the transmission of the sound from the connecting pipe is reduced, and meanwhile, the elastic sleeve is arranged at the position, extending out of the exhaust pipe from the inside of the protective box, and is connected with the exhaust pipe, so that the noise generated by the contact of the exhaust pipe and the protective box is avoided, and the noise in the protective cover is avoided.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the portion A of FIG. 1 according to the present invention;
FIG. 3 is an enlarged schematic view of the portion B of FIG. 1 according to the present invention;
FIG. 4 is a schematic view of the internal structure of the water tank according to the present invention;
fig. 5 is a schematic view of the internal structure of the connecting pipe according to the present invention.
In the figure: 1. a protective box; 101. a connecting pipe; 1011. a heat dissipation fan; 102. a through groove; 103. soundproof cotton; 2. an engine body; 201. a water tank; 202. an exhaust pipe; 3. a sound absorbing cotton board; 4. a fixed rod; 401. a fixing plate; 402. a vibration isolation spring; 5. a damper; 501. a buffer spring; 502. a mounting plate; 6. a water tank; 601. a water supply pump; 6011. a water supply pipe; 6012. a drain pipe; 602. a water inlet pipe; 603. a water outlet pipe; 7. an elastic sleeve; 701. a heat dissipation ring; 8. a partition plate; 801. a gas lance; 8011. an air outlet groove; 802. a sliding sleeve; 8021. a slide bar; 8022. a moving block; 8023. a return spring; 803. an air bag; 8031. and a gas supply pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described 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 be within the scope of the invention.
As shown in fig. 1-5, a diesel engine capable of silencing comprises a protective box 1 and an engine body 2, wherein a water tank 201 and an exhaust pipe 202 are arranged on the engine body 2, the inner wall of the protective box 1 is fixedly connected with soundproof cotton 103, most of noise inside the protective box 1 is isolated through the soundproof cotton 103, meanwhile, two sides of the protective box 1 are fixedly connected with connecting pipes 101, a group of connecting pipes 101 are internally provided with a heat dissipation fan 1011, the heat dissipation fan 1011 extracts air inside the protective box 1 and discharges heat generated during operation of the engine body 2, a plurality of groups of sound absorbing cotton plates 3 are arranged in the connecting pipes 101 in a staggered manner up and down, when the noise is transmitted through the connecting pipes 101, the noise is filled into a cavity through the sound absorbing cotton plates 3 which are arranged in a staggered manner, so that resonance of the noise is solved, noise is reduced by absorbing high, middle, low frequency noise and low frequency noise is absorbed, a plurality of groups of dampers 5 are fixedly connected with the inner walls of the bottom of the protective box 1, the top of the dampers 5 are fixedly connected with mounting plates 502, and the outer walls of the dampers 5 are sleeved with buffer springs 501; the side wall of the protective box 1 is fixedly connected with a water tank 6 and a water supply pump 601, the input end of the water supply pump 601 is communicated with the interior of the water tank 6, the output end of the water supply pump 601 is communicated with a water tank 201 through a water inlet pipe 602, and the water tank 201 is communicated with the bottom of the water tank 6 through a water outlet pipe 603.
As shown in fig. 1 and 3, fixing rods 4 are fixedly connected to the inside of two sides of the protective box 1, fixing plates 401 are fixedly connected to two ends of the mounting plate 502, sliding grooves are formed in the fixing plates 401, the fixing rods 4 are slidably connected to the inside of the sliding grooves, vibration isolation springs 402 are sleeved on the outer walls of the fixing rods 4, and two ends of each vibration isolation spring 402 respectively abut against the inside of the protective box 1 and the side walls of the fixing plates 401; when the vibration of the engine body 2 drives the mounting plate 502 to shake, the vibration of the mounting plate 502 is buffered through the vibration isolation spring 402, and resonance noise generated by the contact between the mounting plate 502 and the inner wall of the protective box 1 is isolated, so that the noise transmission of the engine body 2 is further reduced.
As shown in fig. 1 and fig. 2, the top of the protective housing 1 is provided with the through groove 102 for exhausting the exhaust pipe 202, the diameter of the through groove 102 is larger than that of the exhaust pipe 202, so that noise generated by the exhaust of the exhaust pipe 202 is prevented from being transmitted to the protective housing 1, meanwhile, the outer wall of the through groove 102 is fixedly connected with the elastic sleeve 7, the top of the elastic sleeve 7 is fixedly connected with the heat dissipation ring 701, the heat dissipation ring 701 is fixedly connected with the outer wall of the exhaust pipe 202, a gap between the through groove 102 and the exhaust pipe 202 is sealed, and the noise in the protective housing 1 is prevented from being transmitted through the gap.
As shown in fig. 1, two ends of the heat dissipation ring 701 are fixedly connected with a water supply pipe 6011 and a water drain pipe 6012 respectively, one end of the water supply pipe 6011 away from the heat dissipation ring 701 is connected with the output end of the water supply pump 601, the water drain pipe 6012 penetrates through the protective box 1 and is communicated with the water outlet pipe 603, a part of cooling liquid pumped by the water supply pump 601 enters the heat dissipation ring 701 through the water supply pipe 6011 to cool the temperature transferred to the heat dissipation ring 701 by the exhaust pipe 202, the high temperature melting of the elastic sleeve 7 of the exhaust pipe 202 is avoided,
as shown in fig. 1, an air bag 803 is disposed on the inner wall of the bottom of the protective case 1, two ends of the air bag 803 respectively support against the inner wall of the bottom of the protective case 1 and the mounting plate 502, vibration of the engine body 2 on the mounting plate 502 can be buffered by the air bag 803, meanwhile, an air supply pipe 8031 is fixedly connected to one side of the air bag 803, one end of the air supply pipe 8031, which is far away from the air bag 803, penetrates through the protective case 1 and is communicated with the water tank 6, compressed air received by the air bag 803 during buffering is sent into the water tank 6, cooling liquid in the water tank 6 is enabled to dissipate heat, and check valves are disposed at air inlet and outlet ends of the air bag 803 for air inlet and outlet during compression and resetting of the air bag 803 (as shown in fig. 1).
As shown in fig. 1 and fig. 4, in order to improve the bubbling effect inside the medium water tank 6, the partition plate 8 is fixedly connected inside the water tank 6, the partition plate 8 divides the inside of the water tank 6 into a water inlet cavity and a water outlet cavity, one side of the water outlet cavity of the partition plate 8 is fixedly connected with a gas spraying pipe 801, a plurality of groups of gas outlet grooves 8011 are formed in the top of the gas spraying pipe 801, the gas spraying pipe 801 is communicated with a gas supply pipe 8031, when the engine body 2 vibrates to drive the mounting plate 502 to move downwards, the air bag 803 is extruded, air inside the air bag 803 enters the gas spraying pipe 801 through the gas supply pipe 8031, and then is sprayed into cooling liquid inside the water tank 6 through the gas outlet grooves 8011, so that air bubbles are generated inside the cooling liquid, heat in the cooling liquid is brought to the upper part of the cooling liquid by the air bubbles to dissipate heat, and the heat dissipation efficiency of the cooling liquid is improved.
As shown in fig. 1 and fig. 4, in order to improve the bubbling effect in the middle water tank 6, the water tank 6 is fixedly connected with the sliding sleeve 802 on one side of the water outlet cavity, meanwhile, the air supply pipe 8031 is communicated with the sliding sleeve 802 for supplying air, the sliding rod 8021 is slidingly connected in the sliding sleeve 802, the air input into the sliding sleeve 802 by the air supply pipe 8031 pushes the sliding rod 8021 to move, one end of the sliding rod 8021 penetrates through the sliding sleeve 802 and is fixedly connected with the moving block 8022, the moving block 8022 slides on two sides of the partition plate 8, the sliding rod 8021 drives the moving block 8022 to move, the moving block 8022 is pushed into the water inlet cavity from the water outlet cavity, the water level in the water inlet cavity is reduced, the cooling liquid in the water inlet cavity overflows into the water outlet cavity from the partition plate 8, the cooling liquid is cooled during flowing, the cooling liquid is further improved in heat dissipation efficiency, meanwhile, two ends of the return spring 8023 are respectively abutted against the sliding sleeve 802 and the sliding rod 8021, and the moving block 8022 on the sliding rod 8021 is driven to reset by the return spring 8023 when the air bag resets.
The working principle of the invention is as follows: when the engine body 2 is started to be used, noise generated by the operation of the engine body 2 is primarily absorbed through the soundproof cotton 103 in the protective box 1, then the noise at the ventilation position of the protective box 1 is further reduced through the soundproof cotton plate 3 in the connecting pipe 101, then the noise at the exhaust pipe 202 at the top of the protective box 1 is isolated through the elastic sleeve 7, meanwhile, when the engine body 2 vibrates, the vibration of the engine body 2 is buffered through the buffer spring 501 at the bottom of the mounting plate 502, and then the vibration is damped through the damper 5, the vibration noise that produces when reducing engine body 2 operation, the both sides of mounting panel 502 are connected with the inner wall of protective housing 1 through dead lever 4 and vibration isolation spring 402 simultaneously, when engine body 2 vibrations drive mounting panel 502 shake, when buffering the vibrations of mounting panel 502 through vibration isolation spring 402, keep apart the resonance noise that mounting panel 502 and the contact of protective housing 1 inner wall produced, further reduce engine body 2's noise transmission, start radiator fan 1011 and working shaft 601 simultaneously, working shaft 601 draws the coolant liquid from basin 6, then send into in the water tank 201 on the engine body 2 through inlet tube 602, heat when engine body 2 operates is absorbed, the rethread outlet pipe 603 sends into basin 6 inside and cools down, then recycle, improve the effect to engine body 2 cooling.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.

Claims (8)

1. The utility model provides a but diesel engine of silence, includes protective housing (1), engine body (2), be provided with water tank (201) and blast pipe (202) on engine body (2), a serial communication port, protective housing (1) both sides fixedly connected with connecting pipe (101), a set of connecting pipe (101) inside is provided with heat dissipation fan (1011), inside the crisscross multiunit of being provided with of connecting pipe (101) is inhaled cotton board (3) from top to bottom, protective housing (1) bottom inner wall fixedly connected with multiunit attenuator (5), attenuator (5) top fixedly connected with mounting panel (502), attenuator (5) outer wall cover is equipped with buffer spring (501);
the water tank is characterized in that a water tank (6) and a water supply pump (601) are fixedly connected to the side wall of the protective box (1), the input end of the water supply pump (601) is communicated with the inside of the water tank (6), the output end of the water supply pump (601) is communicated with a water tank (201) through a water inlet pipe (602), and the water tank (201) is communicated with the bottom of the water tank (6) through a water outlet pipe (603).
2. The silent diesel engine according to claim 1, wherein fixing rods (4) are fixedly connected to the inside of two sides of the protective box (1), fixing plates (401) are fixedly connected to two ends of the mounting plate (502), sliding grooves are formed in the fixing plates (401), the fixing rods (4) are slidably connected to the inside of the sliding grooves, vibration isolation springs (402) are sleeved on the outer walls of the fixing rods (4), and two ends of each vibration isolation spring (402) are respectively abutted to the inside of the protective box (1) and the side walls of the fixing plates (401).
3. A silenced diesel engine according to claim 1, wherein the inner wall of the protective housing (1) is fixedly connected with soundproofing cotton (103).
4. The silent diesel engine according to claim 1, wherein the top of the protective housing (1) is provided with a through groove (102), the exhaust pipe (202) penetrates through the through groove (102) and extends to the outer side of the protective housing (1), an elastic sleeve (7) is fixedly connected to the outer wall of the through groove (102), a heat dissipation ring (701) is fixedly connected to the top of the elastic sleeve (7), and the heat dissipation ring (701) is fixedly connected to the outer wall of the exhaust pipe (202).
5. The silent diesel engine according to claim 4, wherein two ends of the heat dissipation ring (701) are fixedly connected with a water supply pipe (6011) and a water discharge pipe (6012), one end of the water supply pipe (6011) away from the heat dissipation ring (701) is connected with the output end of the water supply pump (601), and the water discharge pipe (6012) penetrates through the protective box (1) and is communicated with the water discharge pipe (603).
6. The silent diesel engine according to claim 1, wherein the inner wall of the bottom of the protective box (1) is provided with an air bag (803), two ends of the air bag (803) are respectively propped against the inner wall of the bottom of the protective box (1) and the mounting plate (502), one side of the air bag (803) is fixedly connected with an air supply pipe (8031), and one end of the air supply pipe (8031) far away from the air bag (803) penetrates through the protective box (1) and is communicated with the water tank (6).
7. The silent diesel engine according to claim 6, wherein a partition plate (8) is fixedly connected inside the water tank (6), an air jet pipe (801) is fixedly connected to one side of the partition plate (8), a plurality of groups of air outlet grooves (8011) are formed in the top of the air jet pipe (801), and the air jet pipe (801) is communicated with an air supply pipe (8031).
8. The silent diesel engine according to claim 6, wherein a sliding sleeve (802) is fixedly connected to one side of the water tank (6), the air supply pipe (8031) is communicated with the sliding sleeve (802), a sliding rod (8021) is slidably connected to the inside of the sliding sleeve (802), one end of the sliding rod (8021) penetrates through the sliding sleeve (802) and is fixedly connected with a moving block (8022), the moving block (8022) slides on two sides of the partition board (8), a return spring (8023) is sleeved on the outer wall of the sliding rod (8021), and two ends of the return spring (8023) respectively abut against the sliding sleeve (802) and the sliding rod (8021).
CN202310381766.8A 2023-04-11 2023-04-11 Diesel engine capable of silencing Pending CN116220900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310381766.8A CN116220900A (en) 2023-04-11 2023-04-11 Diesel engine capable of silencing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310381766.8A CN116220900A (en) 2023-04-11 2023-04-11 Diesel engine capable of silencing

Publications (1)

Publication Number Publication Date
CN116220900A true CN116220900A (en) 2023-06-06

Family

ID=86569625

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310381766.8A Pending CN116220900A (en) 2023-04-11 2023-04-11 Diesel engine capable of silencing

Country Status (1)

Country Link
CN (1) CN116220900A (en)

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