Preheating device for cold start of gasoline engine

Abstract

The utility model discloses a cold start preheating device for a gasoline engine. The cold start preheating device comprises a preheater shell, the top of the preheater shell is communicated with an air inlet pipe, and the bottom end of the preheater shell is communicated with an air outlet pipe; a preheating assembly is arranged at an end opening of the air inlet pipe, the preheating assembly is composed of an installation piece and a heating piece, the installation piece is arranged at the end of the air inlet pipe in a sleeving mode, and a gap is reserved between the installation piece and the end face of the air inlet pipe. The heating piece is arranged in the mounting piece, and the heating piece is spirally arranged outside the air inlet pipe in a surrounding manner; in order to overcome the defect that an existing gasoline engine cold start preheating device is insufficient in preheating efficiency, the preheating assembly is additionally arranged, the preheating assembly can conduct preheating treatment in advance before gas enters the preheating device officially, and therefore the time needed by overall preheating is greatly shortened; specifically, the preheating assembly can utilize an external heat source to preliminarily heat gas about to enter the preheating device.

Description

Technical Field

[0001] This utility model belongs to the field of gasoline engine technology, specifically relating to a gasoline engine cold start preheating device. Background Technology

[0002] A gasoline engine cold start preheating device is an auxiliary starting system, particularly suitable for low-temperature environments. It raises the engine temperature by preheating the intake air or coolant, thereby reducing frictional resistance during cold starts, accelerating fuel evaporation, and ensuring the gasoline engine can start quickly and reliably at lower temperatures. This device effectively shortens start-up time, reduces engine wear, and improves fuel efficiency and driving safety.

[0003] Existing cold-start preheating devices for gasoline engines suffer from a significant efficiency bottleneck during the air introduction process. Specifically, the preheating mechanism only activates after all the air has entered its internal space. This design limits the flexibility of the preheating process, resulting in relatively low overall efficiency. Ideally, the preheating process should begin before the gas enters the device to more effectively raise the gas temperature, thereby optimizing the cold-start performance of the gasoline engine.

[0004] However, current technologies have not yet achieved this goal, resulting in gasoline engines requiring a longer time to reach a stable operating state during cold starts. This not only prolongs start-up time but may also cause additional wear and tear on the engine, reducing its lifespan. Therefore, developing a novel gasoline engine cold-start preheating device that can preheat the engine before the gas enters is of great significance for improving engine performance and extending its service life. Utility Model Content

[0005] The purpose of this invention is to provide a gasoline engine cold start preheating device to solve the problem of insufficient preheating efficiency of existing preheating devices mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gasoline engine cold start preheating device, comprising a preheater housing; an intake pipe connected to the top of the preheater housing, and an outlet pipe connected to the bottom of the preheater housing; a preheating component is provided at the port of the intake pipe, the preheating component consisting of a mounting component and a heating component, wherein: the mounting component is sleeved on the end of the intake pipe, and a gap is left between the mounting component and the end face of the intake pipe to ensure that the normal installation of the intake pipe is not affected; the heating component is disposed inside the mounting component, and the heating component is spirally arranged around the outside of the intake pipe, thereby raising the internal temperature of the mounting component through the heating component, and then transferring heat to the intake pipe through the heat conduction effect, causing the temperature of the intake pipe to rise. At this time, the gas passing through the intake pipe will be heated, thereby achieving the purpose of preheating.

[0007] Preferably, the mounting component is a collar with an inner ring groove on its top surface. The heating element is placed inside the inner ring groove, and the temperature of the space inside the inner ring groove is raised by the heating element. At this time, the inner ring groove heats the intake pipe through heat conduction.

[0008] Preferably, the heating element is a heating wire, which is attached to the inner sidewall of the inner annular groove to achieve a better heat conduction effect.

[0009] Preferably, the top surface of the collar is also provided with heat-insulating cotton, which is arranged concentrically with the inner ring groove. The heat-insulating cotton is located near the outer sidewall of the inner ring groove. The inner sidewall of the heat-insulating cotton is also filled with a ring groove. The ring groove keeps the inside of the inner ring groove warm and prevents the temperature inside the inner ring groove from being transferred to the outside of the collar, thus avoiding affecting other external objects.

[0010] Preferably, the top surface of the collar is provided with a placement groove, which is located near the inner side wall of the inner ring groove. A magnetic block is bonded inside the placement groove. A cover ring is also placed on the top surface of the collar, which is magnetically connected to the magnetic block. The cover ring seals the ring groove formed at the top of the collar, preventing the entry of external impurities.

[0011] Preferably, a connecting wire is provided through the side of the collar, one end of which is connected to the heating wire. A mounting base is also fixed on the bottom surface of the preheater shell, and a transmission harness is provided at the bottom of the mounting base. The transmission harness is connected to the internal structure of the preheater shell. The bottom of the collar and the transmission harness are both connected to an external power source. Power is supplied to the preheater shell through the transmission harness to achieve preheating. Since this structure and principle are existing technologies, they will not be described in detail here. The connecting wire supplies power to the heating wire to achieve heating.

[0012] Preferably, the cross-section of the mounting base is larger than the cross-section of the preheater shell, and the surface of the mounting base is provided with screw holes, through which the entire device is installed by external bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] To overcome the shortcomings of existing gasoline engine cold start preheating devices in terms of preheating efficiency, this invention adds a preheating component. This component preheats the gas before it officially enters the preheating device, thus significantly shortening the overall preheating time. Specifically, the preheating component utilizes an external heat source to preheat the gas before it enters the preheating device. As a result, when the gas actually enters the device, its temperature has already been significantly increased, reducing the time and energy consumption required for the internal preheating process. This improvement not only enhances preheating efficiency but also helps reduce wear on the gasoline engine during cold starts, extending its service life. Simultaneously, the reduced preheating time also improves the engine's starting speed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a bottom view of the present invention;

[0017] Figure 3 This is a top view of the present invention with the cover ring removed;

[0018] Figure 4 This utility model Figure 3 An enlarged schematic diagram of region A in the middle.

[0019] In the picture:

[0020] 100. Preheater housing; 101. Inlet pipe; 102. Outlet pipe; 103. Mounting base; 104. Transmission harness;

[0021] 200. Ring; 201. Connecting wire; 202. Cover ring; 203. Ring groove; 204. Insulation cotton; 205. Inner ring groove; 206. Heating wire; 207. Placement groove; 208. Magnetic block. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1 to 4 This utility model provides a technical solution: a gasoline engine cold start preheating device, comprising...

[0024] The preheater housing 100 has an air inlet pipe 101 connected to the top of the preheater housing 100 and an air outlet pipe 102 connected to the bottom of the preheater housing 100.

[0025] The intake pipe 101 is equipped with a preheating component at its port, which consists of a mounting component and a heating component, wherein:

[0026] The mounting component is fitted onto the end of the intake pipe 101, and a gap is left between the mounting component and the end face of the intake pipe 101 to ensure that the normal installation of the intake pipe 101 is not affected.

[0027] The heating element is located inside the mounting component and is spirally arranged around the outside of the intake pipe 101. The heating element raises the internal temperature of the mounting component and then transfers the heat to the intake pipe 101 through thermal conduction, causing the temperature of the intake pipe 101 to rise. At this time, the gas passing through the intake pipe 101 will be heated, thereby achieving the purpose of preheating.

[0028] In this embodiment, preferably, the mounting component is a collar 200, the top surface of which has an inner ring groove 205. The heating element is placed in the inner ring groove 205, and the temperature of the internal space of the inner ring groove 205 is raised by the heating element. At this time, the inner ring groove 205 heats the intake pipe 101 through heat conduction.

[0029] In this embodiment, preferably, the heating element is a heating wire 206, which is attached to the inner sidewall of the inner ring groove 205 to achieve a better heat conduction effect.

[0030] In this embodiment, preferably, the top surface of the collar 200 is also provided with heat insulation cotton 204. The heat insulation cotton 204 and the inner ring groove 205 are arranged in a concentric circle. The heat insulation cotton 204 is located near the outer sidewall of the inner ring groove 205. The inside of the heat insulation cotton 204 is also filled with a ring groove 203. The ring groove 203 insulates the inside of the inner ring groove 205 and prevents the temperature inside the inner ring groove 205 from being transferred to the outside of the collar 200, so as to avoid affecting other external objects.

[0031] In this embodiment, preferably, the top surface of the collar 200 is provided with a placement groove 207, which is located near the inner side wall of the inner ring groove 205. A magnetic block 208 is bonded inside the placement groove 207. A cover ring 202 is also placed on the top surface of the collar 200. The cover ring 202 is magnetically connected to the magnetic block 208. The cover ring 202 seals the ring groove formed at the top of the collar 200 to prevent the entry of external impurities.

[0032] In this embodiment, preferably, a connecting wire 201 is provided through the side of the collar 200, and one end of the connecting wire 201 is connected to the heating wire 206. A mounting base 103 is also fixed on the bottom surface of the preheater housing 100. A transmission harness 104 is provided at the bottom of the mounting base 103. The transmission harness 104 is connected to the internal structure of the preheater housing 100. The bottom end of the collar 200 and the transmission harness 104 are both connected to an external power source. Power is supplied to the preheater housing 100 through the transmission harness 104 to achieve preheating. Since this structure and principle are existing technologies, they will not be described in detail here. The connecting wire 201 supplies power to the heating wire 206 to achieve heating.

[0033] In this embodiment, preferably, the cross-section of the mounting base 103 is larger than the cross-section of the preheater shell 100, and the surface of the mounting base 103 is provided with screw holes, and the entire device is installed by external bolts passing through the screw holes.

[0034] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these 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. A gasoline engine cold start preheating device, comprising a preheater shell (100); an air inlet pipe (101) is communicated at the top of the preheater shell (100), and an air outlet pipe (102) is communicated at the bottom end of the preheater shell (100); characterized in that: a preheating assembly is arranged at the port of the air inlet pipe (101), which is composed of a mounting member and a heating member, wherein: the mounting member is sleeved at the end of the air inlet pipe (101), and a space is left between the mounting member and the end face of the air inlet pipe (101); the heating member is arranged inside the mounting member, and the heating member is spirally arranged outside the air inlet pipe (101).

2. A cold start preheating device for a gasoline engine according to claim 1, characterized in that: the mounting member is a sleeve ring (200), and an inner ring groove (205) is formed at the top end face of the sleeve ring (200), and the heating member is arranged in the inner ring groove (205).

3. A cold start preheating device for a gasoline engine according to claim 2, characterized in that: the heating member is a heating wire (206), which is attached to the inner side wall of the inner ring groove (205).

4. A cold start preheating device for a gasoline engine according to claim 3, characterized in that: the top end face of the sleeve ring (200) is also provided with thermal insulation cotton (204), which is arranged in a concentric circle with the inner ring groove (205), and the thermal insulation cotton (204) is adjacent to the outer side wall of the inner ring groove (205), and a ring groove (203) is filled inside the thermal insulation cotton (204).

5. A cold start preheating device for a gasoline engine according to claim 2, characterized in that: the top end face of the sleeve ring (200) is provided with a placement groove (207) adjacent to the inner side wall of the inner ring groove (205), and a magnetic block (208) is bonded inside the placement groove (207), and a cover ring (202) is arranged at the top end face of the sleeve ring (200), which is magnetically connected with the magnetic block (208).

6. A cold start preheating device for a gasoline engine according to claim 3, characterized in that: the side edge of the sleeve ring (200) is provided with a connecting wire (201), one end of the connecting wire (201) is communicated with the heating wire (206), and a mounting seat (103) is fixedly arranged at the bottom end face of the preheater shell (100), the bottom end of the mounting seat (103) is provided with a transmission wire harness (104), which is connected with the internal structure of the preheater shell (100), and the bottom end of the sleeve ring (200) and the transmission wire harness (104) are connected with an external power supply.

7. A cold start preheating device for a gasoline engine according to claim 6, characterized in that: the cross section of the mounting seat (103) is larger than the cross section of the preheater shell (100), and screw holes are formed on the surface of the mounting seat (103).

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