Inlet air preheating structure for cold start of diesel engine

Abstract

The utility model relates to the technical field of diesel engine starting, and discloses an air inlet preheating structure for diesel engine cold start, which comprises a diesel engine set body, an air inlet pipe is arranged on the front side face of the diesel engine set body, a preheating structure is arranged on the surface of the air inlet pipe, and a filtering mechanism is arranged on the front end face of the air inlet pipe. The preheating structure is arranged on the surface of the air inlet pipe in a sleeving mode through a rotating handle in the adjusting part, the rotating handle is rotated, the rotating handle drives a bidirectional threaded rod, the bidirectional threaded rod drives a threaded block, the threaded block drives a side plate and the preheating part to slide on the surface of a sliding rod under the action of the sliding block, and therefore the air inlet pipe is clamped and fixed; and after fixing, the heat insulation clamping plate and the heat conduction plate are attached to the surface of the air inlet pipe, so that the power supply connecting wire and the power line are connected for electrification, heating is conducted, quick disassembly and replacement are supported, and diesel engine set bodies of different types are adapted.

Description

Technical Field

[0001] This utility model relates to the field of diesel engine starting technology, specifically to an intake preheating structure for cold starting of a diesel engine. 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 produce electricity. A complete unit typically consists of a diesel engine, generator, control box, fuel tank, starting and control batteries, protection devices, and emergency cabinet. It can be used for daily power generation and emergency power generation in various homes, offices, and businesses of all sizes.

[0003] Compared with existing technologies: If the preheating structure cannot be adapted to the diesel engine body of different models, it may not be able to perfectly match the intake system, combustion system, etc. of the engine. This will result in poor intake preheating effect, affect fuel combustion efficiency, and make the power output of the diesel engine unstable.

[0004] Therefore, an intake preheating structure for cold starting of diesel engines is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an intake preheating structure for cold start of diesel engines, which solves the technical problem that if the preheating structure cannot be adapted to different types of diesel engine units, it may not be able to perfectly match the intake system, combustion system, etc. of the unit, which will lead to poor intake preheating effect. This achieves the purpose of adapting to different diesel engine units.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an intake preheating structure for cold starting of a diesel engine, comprising a diesel engine body, an intake pipe provided on the front side of the diesel engine body, a preheating structure provided on the surface of the intake pipe, and a filter mechanism provided on the front end face of the intake pipe.

[0007] The preheating structure includes an adjustment section and a preheating section;

[0008] The preheating section is located on the inner side of the adjusting section;

[0009] The filtration mechanism includes a filtration section and a cleaning section;

[0010] The cleaning section is located on the inner side of the filter section.

[0011] Preferably, the adjusting part includes a C-shaped plate, the inner side of which is provided with a through groove and a mounting groove. A handle is provided on the top surface of the C-shaped plate, and a bidirectional threaded rod is provided on the bottom surface of the handle. The bidirectional threaded rod is fixedly connected to the handle and extends through to the inner side of the through groove. The bidirectional threaded rod is threadedly connected to the inner wall of the C-shaped plate, and the bottom surface of the bidirectional threaded rod is rotatably connected to the inner side of the through groove through a bearing seat.

[0012] Preferably, each of the two-way threaded rods is fitted with a threaded block, the threaded block is threadedly connected to the two-way threaded rod, and each of the threaded blocks has a side plate on its right side, the side plate being fixedly connected to the threaded block.

[0013] Preferably, the preheating section includes a slider located on the inner side of the placement groove. The slider is fixedly connected to the side plate. A sliding rod is provided through the inner wall of the slider. The sliding rod is slidably connected to the slider and fixedly connected to the inner side of the placement groove.

[0014] Preferably, each slide bar has a support plate on its front side, which is fixedly connected to the side plate. Each support plate has a heat-insulating clamping plate on its inner side, which is fixedly connected to the support plate. The inner side of the heat-insulating clamping plate has an installation groove, and each heat-insulating clamping plate has a heating wire on its inner side. A heat-conducting plate is provided on the outer side of each heating wire. The heat-conducting plate is fixedly connected to the inner side of the installation groove. A power connection wire is provided on the left side of the heat-conducting plate and is connected to the heating wire. The power connection wire extends through to the left side of the heat-insulating clamping plate. Through the adjustment and preheating sections in the preheating structure, the system can adapt to different diesel engines.

[0015] Preferably, the filter section includes a filter box, an air inlet pipe is connected to the front end of the filter box, a threaded pipe is provided on the rear side of the air inlet pipe, the threaded pipe is connected to the filter box, and a threaded sleeve is threadedly connected to the surface of the threaded pipe, the threaded sleeve is fitted on the surface of the air inlet pipe.

[0016] Preferably, the cleaning part includes a chute, which is fixedly connected to the inner side of the filter box. A filter screen is provided on each inner side of the chute. The filter screen is slidably connected to the chute and extends through to the top of the filter box. The filter screen is slidably connected to the inner wall of the filter box. A handle is fixedly connected to the top surface of the filter screen. Through the filtration part and the cleaning part in the filtration mechanism, the air filtration effect is achieved.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This is an intake air preheating structure for cold starting of a diesel engine.

[0018] (1) Through the preheating structure, the preheating structure is fitted onto the surface of the intake pipe by using the handle in the adjustment part. The handle is rotated, and the handle drives the double-threaded rod. The double-threaded rod drives the threaded block, so that the threaded block drives the side plate and the preheating part to slide on the surface of the sliding rod under the action of the slider, thereby clamping and fixing the intake pipe. After fixing, the heat insulation clamping plate and the heat conduction plate are attached to the surface of the intake pipe, thereby connecting the power connection line to the power line to conduct electricity, thereby heating, thus supporting quick disassembly and replacement, and adapting to the diesel engine body of different models.

[0019] (2) Through the filter mechanism, the threaded sleeve in the filter section is used to select a threaded sleeve that is compatible with the intake pipe of the diesel engine unit and put it on the surface of the intake pipe, thereby connecting the threaded pipe and the threaded sleeve. The threaded pipe fixes the filter mechanism to the front side of the intake pipe. When the intake is carried out, the air enters the filter box through the intake pipe and is filtered by the filter screen. When the filter screen is blocked, the handle is pulled, and the handle drives the filter screen to be pulled out of the slide groove and away from the filter box, thereby performing air extraction and cleaning, thereby preventing dust from entering and damaging the diesel engine unit. Attached Figure Description

[0020] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 3 This is a three-dimensional schematic diagram of the preheating structure of this utility model;

[0023] Figure 4 This is a three-dimensional cross-sectional view of the preheating structure of this utility model;

[0024] Figure 5 This is a three-dimensional cross-sectional view of the filter structure of this utility model.

[0025] In the diagram: 1. Diesel engine body; 2. Preheating structure; 21. Adjustment section; 22. Preheating section; 211. C-shaped plate; 212. Handle; 213. Two-way threaded rod; 214. Threaded block; 215. Side plate; 221. Slider; 222. Sliding rod; 223. Support plate; 224. Heat insulation clamping plate; 225. Heating wire; 226. Heat conducting plate; 227. Power connection line; 3. Filtration mechanism; 31. Filtration section; 32. Cleaning section; 311. Filtration box; 312. Intake pipe; 313. Threaded pipe; 314. Threaded sleeve; 321. Slide groove; 322. Filter screen; 323. Handle; 4. Intake pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1:

[0028] Given the current issue that if the preheating structure is not compatible with different diesel engine models, it may not perfectly match the engine's intake and combustion systems, leading to poor intake preheating performance, please refer to [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model provides a technical solution: an intake preheating structure for cold start of a diesel engine, including a diesel engine body 1, an intake pipe 4 is provided on the front side of the diesel engine body 1, a preheating structure 2 is provided on the surface of the intake pipe 4, and a filter mechanism 3 is provided on the front end face of the intake pipe 4.

[0029] The preheating structure 2 includes an adjustment section 21 and a preheating section 22;

[0030] The preheating section 22 is located on the inner side of the adjusting section 21;

[0031] The filtration mechanism 3 includes a filtration section 31 and a cleaning section 32;

[0032] The cleaning section 32 is located on the inner side of the filter section 31.

[0033] The adjustment part 21 includes a C-shaped plate 211. The inner side of the C-shaped plate 211 is provided with a through groove and a mounting groove. A handle 212 is provided on the top surface of the C-shaped plate 211. A bidirectional threaded rod 213 is provided on the bottom surface of the handle 212. The bidirectional threaded rod 213 is fixedly connected to the handle 212. The bidirectional threaded rod 213 extends through to the inner side of the through groove. The bidirectional threaded rod 213 is threadedly connected to the inner wall of the C-shaped plate 211. The bottom surface of the bidirectional threaded rod 213 is rotatably connected to the inner side of the through groove through a bearing seat.

[0034] The surface of the bidirectional threaded rod 213 is fitted with threaded blocks 214, which are threadedly connected to the bidirectional threaded rod 213. The right side of the threaded block 214 is provided with a side plate 215, which is fixedly connected to the threaded block 214.

[0035] The preheating section 22 includes a slider 221, which is located on the inner side of the placement groove. The slider 221 is fixedly connected to the side plate 215. The inner wall of the slider 221 is provided with a sliding rod 222, which is slidably connected to the slider 221 and fixedly connected to the inner side of the placement groove.

[0036] Each slide bar 222 has a support plate 223 on its front side, which is fixedly connected to the side plate 215. Each support plate 223 has a heat insulation clamping plate 224 on its inner side, which is fixedly connected to the support plate 223. Each heat insulation clamping plate 224 has an installation groove on its inner side, and each heat insulation clamping plate 224 has a heating wire 225 on its inner side. Each heating wire 225 has a heat-conducting plate 226 on its outer side. The heat-conducting plate 226 is fixedly connected to the inner side of the installation groove. Each heat-conducting plate 226 has a power connection line 227 on its left side, which is connected to the heating wire 225 and extends through to the left side of the heat insulation clamping plate 224.

[0037] Furthermore, in this embodiment, the preheating structure 2 is initially fitted onto the surface of the intake pipe 4 using the handle 212 in the adjustment part 21. Rotating the handle 212 causes the connected bidirectional threaded rod 213 to rotate. The rotation of the bidirectional threaded rod 213 further causes the threaded block 214 on it to move. The movement of the threaded block 214 pushes the side plate 215 and the preheating part 22 to slide along the surface of the slide rod 222 under the guidance of the slider 221, so that the preheating structure 2 gradually clamps the intake pipe 4. After clamping and fixing, the heat insulation clamping plate 224 and the heat conduction plate 226 in the preheating structure 2 are tightly attached to the surface of the intake pipe 4. The power connection line 227 of the preheating structure 2 is connected to the power line. After power is turned on, the heating wire 225 starts to work, generates heat and transfers it to the intake pipe 4 through the heat conduction plate 226, thereby realizing the preheating of the intake air.

[0038] Furthermore, in this embodiment, the preheating structure 2 is fitted onto the surface of the intake pipe 4 by using the handle 212 in the adjustment part 21. Rotating the handle 212 drives the bidirectional threaded rod 213, which in turn drives the threaded block 214. This causes the threaded block 214 to drive the side plate 215 and the preheating part 22 to slide on the surface of the slide rod 222 under the action of the slider 221, thereby clamping and fixing the intake pipe 4. After fixing, the heat insulation clamping plate 224 and the heat conduction plate 226 are attached to the surface of the intake pipe 4, thereby connecting the power connection line 227 to the power line to conduct electricity and heat up. This supports quick disassembly and replacement and is compatible with different models of diesel engine body 1.

[0039] Example 2:

[0040] Please see Figure 1 , Figure 2 , Figure 5Furthermore, based on Embodiment 1, the following is obtained: the filter section 31 includes a filter box 311, an air inlet pipe 312 is connected to the front end of the filter box 311, a threaded pipe 313 is provided on the rear side of the air inlet pipe 312, the threaded pipe 313 is connected to the filter box 311, and a threaded sleeve 314 is threadedly connected to the surface of the threaded pipe 313, and the threaded sleeve 314 is fitted on the surface of the air inlet pipe 4.

[0041] The cleaning unit 32 includes a chute 321, which is fixedly connected to the inner side of the filter box 311. A filter screen 322 is provided on the inner side of the chute 321. The filter screen 322 is slidably connected to the chute 321. The filter screen 322 extends through to the top of the filter box 311 and is slidably connected to the inner wall of the filter box 311. A handle 323 is fixedly connected to the top surface of the filter screen 322.

[0042] Furthermore, in this embodiment, the specifications and dimensions of the intake pipe 4 of the diesel engine unit body 1 are determined by the filter mechanism 3 and the threaded sleeve 314 in the filter section 31, so as to select a suitable threaded sleeve 314. The selected threaded sleeve 314 is fitted onto the surface of the intake pipe 4, ensuring that the threaded sleeve 314 fits tightly with the intake pipe 4 without any looseness. The threaded tube 313 is then threadedly connected to the threaded sleeve 314 already installed on the intake pipe 4. By rotating the threaded tube 313, it is gradually tightened onto the threaded sleeve 314 until the filter mechanism 3 is securely fixed to the intake pipe. At the front of pipe 4, when the diesel engine unit 1 is intake, the air first enters the filter box 311 through the intake pipe 312. Inside the filter box 311, the air is filtered by the filter screen 322 to remove dust, impurities and other pollutants. The filtered clean air then enters the intake pipe 4 and is supplied to the diesel engine unit 1. When the filter screen 322 becomes clogged due to long-term use, the handle 323 is pulled. The handle 323 drives the filter screen 322 to be pulled out of the filter box 311 along the slide groove 321 and the pulled-out filter screen 322 is cleaned.

[0043] Furthermore, in this embodiment, the filter mechanism 3 utilizes the threaded sleeve 314 in the filter section 31 to select a threaded sleeve 314 that is compatible with the intake pipe 4 of the diesel engine unit body 1 and fits it onto the surface of the intake pipe 4, thereby threading the threaded pipe 313 and the threaded sleeve 314 together. Thus, the threaded pipe 313 fixes the filter mechanism 3 to the front side of the intake pipe 4. When air is being intaked, air enters the filter box 311 through the intake pipe 312 and is filtered by the filter screen 322. When the filter screen 322 is blocked, the handle 323 is pulled, and the handle 323 drives the filter screen 322 to be pulled out of the slide groove 321 and away from the filter box 311, thereby performing air extraction and cleaning, thus preventing dust from entering and damaging the diesel engine unit body 1.

[0044] In use, the specifications and dimensions of the intake pipe 4 of the diesel engine unit body 1 are determined by the threaded sleeve 314 in the filter section 31 through the filter mechanism 3, so as to select a suitable threaded sleeve 314. The selected threaded sleeve 314 is then fitted onto the surface of the intake pipe 4, ensuring that the threaded sleeve 314 fits tightly against the intake pipe 4 without any looseness. The threaded tube 313 is then threadedly connected to the threaded sleeve 314 already installed on the intake pipe 4. By rotating the threaded tube 313, it is gradually tightened onto the threaded sleeve 314 until the filter mechanism 3 is securely fixed to the front side of the intake pipe 4. Through the preheating structure 2, the preheating structure 2 is initially fitted onto the surface of the intake pipe 4 using the handle 212 in the adjustment section 21. Rotating the handle 212 causes the connected bidirectional threaded rod 213 to rotate, and the rotation of the bidirectional threaded rod 213 further drives the threaded block 21 on it. 4. Movement: The movement of the threaded block 214 pushes the side plate 215 and the preheating part 22 to slide along the surface of the slide rod 222 under the guidance of the slider 221, so that the preheating structure 2 gradually clamps the intake pipe 4. After clamping and fixing, the heat insulation clamping plate 224 and the heat conduction plate 226 in the preheating structure 2 are tightly attached to the surface of the intake pipe 4. The power connection line 227 of the preheating structure 2 is connected to the power line. After power is turned on, the heating wire 225 starts to work, generates heat and transfers it to the intake pipe 4 through the heat conduction plate 226, thereby realizing the preheating of the intake air. When the diesel engine body 1 is intake, the air first enters the filter box 311 through the intake pipe 312. In the filter box 311, the air is filtered by the filter screen 322 to remove dust, impurities and other pollutants, and then enters the preheated intake pipe 4 to supply the diesel engine body 1. When the filter screen 322 becomes clogged due to prolonged use, pull the handle 323. The handle 323 will pull the filter screen 322 out of the filter box 311 along the slide groove 321, and the removed filter screen 322 can be cleaned.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intake air preheating structure for cold starting of a diesel engine, comprising a diesel engine body (1), characterized in that: The diesel engine body (1) is provided with an intake pipe (4) on the front side, the surface of the intake pipe (4) is provided with a preheating structure (2), and the front end face of the intake pipe (4) is provided with a filter mechanism (3). The preheating structure (2) includes an adjustment section (21) and a preheating section (22); The preheating section (22) is located on the inner side of the adjusting section (21); The filtration mechanism (3) includes a filtration section (31) and a cleaning section (32). The cleaning section (32) is located on the inner side of the filter section (31); The adjustment part (21) includes a C-shaped plate (211). The inner side of the C-shaped plate (211) is provided with a through groove and a mounting groove. The top surface of the C-shaped plate (211) is provided with a handle (212). The bottom surface of the handle (212) is provided with a bidirectional threaded rod (213). The bidirectional threaded rod (213) is fixedly connected to the handle (212). The bidirectional threaded rod (213) extends through to the inner side of the through groove. The bidirectional threaded rod (213) is threadedly connected to the inner wall of the C-shaped plate (211). The bottom surface of the bidirectional threaded rod (213) is rotatably connected to the inner side of the through groove through a bearing seat. The surface of the bidirectional threaded rod (213) is provided with a threaded block (214). The threaded block (214) is threadedly connected to the bidirectional threaded rod (213). The right side of the threaded block (214) is provided with a side plate (215). The side plate (215) is fixedly connected to the threaded block (214). The preheating section (22) includes a slider (221), which is located on the inner side of the placement groove. The slider (221) is fixedly connected to the side plate (215). A sliding rod (222) is provided through the inner wall of the slider (221). The sliding rod (222) is slidably connected to the slider (221), and the sliding rod (222) is fixedly connected to the inner side of the placement groove. The filter section (31) includes a filter box (311), an air inlet pipe (312) is connected to the front end of the filter box (311), a threaded pipe (313) is provided on the rear side of the air inlet pipe (312), the threaded pipe (313) is connected to the filter box (311), and a threaded sleeve (314) is threadedly connected to the surface of the threaded pipe (313), and the threaded sleeve (314) is fitted on the surface of the air inlet pipe (4); The cleaning section (32) includes a chute (321), which is fixedly connected to the inner side of the filter box (311). A filter screen (322) is provided on the inner side of the chute (321). The filter screen (322) is slidably connected to the chute (321). The filter screen (322) extends through to the top of the filter box (311). The filter screen (322) is slidably connected to the inner wall of the filter box (311). A handle (323) is fixedly connected to the top surface of the filter screen (322).

2. The intake air preheating structure for cold starting of a diesel engine according to claim 1, characterized in that: Each of the slide rods (222) is provided with a support plate (223) on its front side. The support plate (223) is fixedly connected to the side plate (215). Each of the inner sides of the support plate (223) is provided with a heat insulation clamping plate (224). The heat insulation clamping plate (224) is fixedly connected to the support plate (223). An installation groove is provided on the inner side of the heat insulation clamping plate (224). Each of the inner sides of the heat insulation clamping plate (224) is provided with a heating wire (225). Each of the outer sides of the heating wire (225) is provided with a heat-conducting plate (226). The heat-conducting plate (226) is fixedly connected to the inner side of the installation groove. A power connection line (227) is provided on the left side of the heat-conducting plate (226). The power connection line (227) is connected to the heating wire (225). The power connection line (227) extends through to the left side of the heat insulation clamping plate (224).

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