Methanol engine torpedo body vaporization device

Abstract

The application discloses a methanol engine torpedo body vaporizing device, which comprises a cylinder cover, an air inlet pipe and a nozzle, the nozzle is installed on the air inlet pipe, the air inlet pipe is installed on the cylinder cover, the cylinder cover is provided with a plurality of air inlet channels which are communicated with the air inlet pipe, and the device further comprises a heating body, a connecting part of each air inlet channel is provided with the heating body, the heating body is in a torpedo body structure, and the side of the heating body which is directed to the nozzle is conical. The application has the advantages of compact structure, high methanol vaporizing efficiency and the like.

Description

Technical Field

[0001] This invention relates to the field of methanol engine technology, and in particular to a methanol engine torpedo body vaporization device. Background Technology

[0002] Given my country's energy structure characterized by "abundant coal, scarce oil, and limited gas," and the current situation of insufficient methanol production capacity, promoting the use of methanol vehicles to achieve diversified energy development is an important measure to ensure my country's energy security. On the one hand, methanol has a high oxygen content, making it difficult to form soot emissions, and it also possesses high latent heat of vaporization, which has not been rationally utilized in engine combustion. On the other hand, the exhaust gas from traditional engines has a relatively high temperature and pressure, still possessing significant power potential, but the waste heat from engine exhaust is not efficiently utilized. However, existing methanol engines suffer from problems such as low atomization efficiency and difficulty in vaporization.

[0003] Existing patent document CN121251488A discloses a methanol evaporation device, method, and methanol internal combustion engine for achieving efficient heat exchange. It generates high-temperature exhaust gas by igniting a small amount of methanol vapor, rapidly constructing an internal heat source without relying on external electric heating elements, thus improving the system's low-temperature self-starting capability. The gradient porous media layer structure design allows liquid methanol to be fully dispersed during evaporation and efficiently exchange heat with the heat source, effectively avoiding uneven heat exchange or evaporation lag caused by droplet aggregation, thereby improving the overall evaporation rate and uniformity. Simultaneously, this design has excellent heat retention capacity, significantly reducing system heat loss, improving operational stability in low-temperature environments, and enhancing the starting reliability and combustion efficiency of the methanol internal combustion engine under extremely cold conditions. Compared to traditional solutions relying on external heating, it has advantages such as low energy consumption, fast response, and wide temperature adaptability.

[0004] Existing patent document CN120906714A discloses a methanol heating structure and control strategy for a methanol engine. It improves the preheating effect of methanol fuel by heating the intake manifold, thereby enabling the methanol fuel to be fully vaporized. It also proposes an automatic control system that uses an ECU, relays, etc., to automatically control the operation of the heating components to meet the conditions for the full vaporization of methanol fuel.

[0005] The above background information is provided only to aid in understanding the concept and technical solution of this invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Summary of the Invention

[0006] The main objective of this invention is to propose a methanol vaporization device that promotes the heating of methanol solution and improves the vaporization efficiency of methanol solution.

[0007] Therefore, this invention proposes a methanol engine torpedo body vaporization device.

[0008] Preferably, the present invention may also have the following technical features:

[0009] A methanol engine torpedo-body vaporization device includes a cylinder head, an intake pipe, and a nozzle. The nozzle is mounted on the intake pipe, and the intake pipe is mounted on the cylinder head. The cylinder head has a plurality of intake passages communicating with the intake pipe. The device also includes a heating element. Each intake passage has a connecting part for mounting the heating element. The heating element has a torpedo-body structure, and its side facing the nozzle is conical.

[0010] Furthermore, the heating element is electrically heated.

[0011] Furthermore, the working temperature of the conical surface of the heating element is greater than 70°C.

[0012] Furthermore, the working temperature of the conical surface of the heating element is 90-110℃.

[0013] Furthermore, the central axis of the heating element is concentric with the central axis of the nozzle and the air intake.

[0014] Furthermore, the intake duct is a Y-shaped intake duct, which includes a collection chamber, a first intake chamber and a second intake chamber. One end of the collection chamber extends to the intake side of the cylinder head, and the other end branches into the first intake chamber and the second intake chamber. The first intake chamber and the second intake chamber are separated by a transition fillet, which serves as the connecting part of the heating element.

[0015] Furthermore, the front side of the heating element is a conical surface, and the rear side is mounted on the connecting part by an interference fit.

[0016] Furthermore, an assembly hole that mates with the connecting part is machined on the rear side of the heating element, and the heating element is press-fitted onto the connecting part.

[0017] Furthermore, a mounting post is provided on the rear side of the heating element, and a connecting hole is provided on the connecting part to mate with the mounting post, so that the heating element is press-fitted into the connecting hole.

[0018] Furthermore, there are 2-3 heating elements stacked together to form a multi-stage heating element.

[0019] The beneficial effects of this invention compared to existing technologies include: when the methanol solution passes through the heating element, it rapidly vaporizes. Upon contact with the heating element, the methanol solution is heated and partially vaporized, while another portion diffuses through the heating element into the higher-temperature inlet space for further vaporization. Furthermore, the flow rate of the methanol solution is accelerated. As the methanol solution flows along the conical surface, its velocity gradually increases, and it enters the rear section of the inlet behind the heating element along with the air. Thus, the heating element serves to guide and accelerate the flow, as well as heat and vaporize the methanol solution. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of one embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of another embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the third embodiment of the present invention.

[0023] 1. Nozzle; 2. Intake pipe; 3. Methanol solution; 4. Heating element; 5. Connecting part; 51. First intake chamber; 52. Second intake chamber; 53. Combination chamber; 6. Cylinder head. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to specific embodiments and the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope or application of the present invention.

[0025] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein the same reference numerals denote the same parts unless otherwise specifically stated.

[0026] like Figure 1-2The illustrated methanol engine torpedo-shaped vaporization device includes a cylinder head 6, an intake pipe 2, and a nozzle 1. The nozzle 1 is mounted on the intake pipe 2, and the intake pipe 2 is mounted on the cylinder head 6. The cylinder head 6 has several intake passages 7 connected to the intake pipe 2. It also includes a heating element 4, with a connecting part 5 within each intake passage 7 for mounting the heating element 4. The heating element 4 has a torpedo-shaped structure, with a conical shape on the side facing the nozzle 1. In this embodiment, the nozzle 1 sprays methanol solution 3 into the heating element 4 within the intake passage 7. The methanol solution 3 accelerates along the conical surface of the outer wall of the heating element 4. That is, when the methanol solution 3 passes through the heating element 4, it rapidly vaporizes. Upon contact with the heating element 4, the methanol solution 3 is heated and partially vaporized, while another portion diffuses through the heating element 4 into the higher-temperature intake passage 7 space for further vaporization. Simultaneously, the flow rate of the methanol solution 3 is accelerated. As the methanol solution 3 flows along the conical surface, its velocity gradually increases, and it enters the rear section of the intake passage 7 behind the heating element 4 along with the air. In this way, the heating element 4 serves to guide, accelerate, and heat the vaporized methanol solution. During operation, the methanol solution 3 is sprayed in the same direction as the air intake, resulting in low resistance and stable spraying of the methanol solution 3 onto the heating element 4. Moreover, the heating element 4 directly heats the methanol solution spray, resulting in high heating efficiency. Simultaneously, the heating element 4 can rapidly increase the temperature within the air intake, enabling the methanol solution 3 to vaporize quickly and thoroughly.

[0027] Preferably, the heating element 4 is electrically heated. When the engine is running, the conical surface of the heating element 4 is heated to above 70°C, preferably to 90-110°C. The vaporization temperature of the methanol solution 3 is approximately 70°C. When the conical surface of the heating element 4 is heated to 100°C, the methanol solution 3 can be rapidly vaporized when sprayed onto the conical surface of the heating element 4. Furthermore, the central axis of the heating element 4 is concentric with the central axes of the nozzle 1 and the air intake duct 7. In this way, the methanol solution 3 sprayed from the nozzle 1 is evenly sprayed onto the heating element.

[0028] In a preferred embodiment, the intake duct 7 is a Y-shaped intake duct, which includes a converging chamber 53, a first intake chamber 51, and a second intake chamber 52. One end of the converging chamber 53 extends to the intake side of the cylinder head 6, and the other end branches into the first intake chamber 51 and the second intake chamber 52. The Y-shaped intake duct structure is a known structure. The first intake chamber 51 and the second intake chamber 52 are separated by a transition rounded corner, which serves as the connecting part of the heating element 4, resulting in a stable and reliable installation structure.

[0029] Preferably, the front side of the heating element 4 is a tapered surface, and the rear side is mounted on the connecting part 5 by an interference fit. For example, an assembly hole that mates with the connecting part 5 is machined on the rear side of the heating element 4, and the heating element 4 is press-fitted onto the connecting part 5. Alternatively, a mounting post is provided on the rear side of the heating element 4, and a connecting hole that mates with the mounting post is opened in the connecting part 5, and the heating element 4 is press-fitted into the connecting hole.

[0030] In some embodiments, reference is made to Figure 3 Two to three heating elements 4 are stacked together, for example, three heating elements 4 are coaxially stacked and fixed together to form a multi-stage heating structure. The multi-stage heating structure can repeatedly accelerate and heat the methanol solution 3, further improving the vaporization efficiency of the methanol solution 3. In this embodiment, multiple heating elements form a multi-stage acceleration and heating structure, and the heating elements are arranged to meet the heating requirements of different models.

[0031] Those skilled in the art will recognize that numerous variations are possible with respect to the above description, and the embodiments and figures are merely for describing one or more specific implementations.

[0032] Although exemplary embodiments of the invention have been described and illustrated, those skilled in the art will understand that various changes and substitutions can be made thereto without departing from the spirit of the invention. Furthermore, many modifications can be made to adapt specific situations to the doctrine of the invention without departing from the central concepts of the invention described herein. Therefore, the invention is not limited to the specific embodiments disclosed herein, but may include all embodiments and equivalents that fall within the scope of the invention.

Claims

1. A methanol engine torpedo body vaporization device, comprising a cylinder head, an intake pipe, and a nozzle, wherein the nozzle is mounted on the intake pipe, the intake pipe is mounted on the cylinder head, and the cylinder head is provided with a plurality of intake passages communicating with the intake pipe, characterized in that: It also includes a heating element, and each of the air intakes has a connecting part for mounting the heating element. The heating element has a torpedo-shaped structure, and the side facing the nozzle is conical.

2. The methanol engine torpedo body vaporization device as described in claim 1, characterized in that: The heating element is electrically heated.

3. The methanol engine torpedo body vaporization device as described in claim 1, characterized in that: The working temperature of the conical surface of the heating element is greater than 70°C.

4. The methanol engine torpedo body vaporization device as described in claim 3, characterized in that: The working temperature of the conical surface of the heating element is 90-110℃.

5. The methanol engine torpedo body vaporization device as described in claim 1, characterized in that: The central axis of the heating element is concentric with the central axis of the nozzle and the air intake.

6. The methanol engine torpedo body vaporization device as described in claim 1, characterized in that: The intake duct is a Y-shaped intake duct, which includes a collection chamber, a first intake chamber and a second intake chamber. One end of the collection chamber extends to the intake side of the cylinder head, and the other end branches into the first intake chamber and the second intake chamber. The first intake chamber and the second intake chamber are separated by a transition fillet, which serves as the connecting part of the heating element.

7. The methanol engine torpedo body vaporization device as described in claim 6, characterized in that: The front side of the heating element is a conical surface, and the rear side is mounted on the connecting part by an interference fit.

8. The methanol engine torpedo body vaporization device as described in claim 7, characterized in that: The rear side of the heating element is machined with an assembly hole that mates with the connecting part, and the heating element is press-fitted onto the connecting part.

9. The methanol engine torpedo body vaporization device as described in claim 7, characterized in that: A mounting post is provided on the rear side of the heating element, and a connecting hole is provided on the connecting part to fit the mounting post, so that the heating element is pressed into the connecting hole.

10. The methanol engine torpedo body vaporization device as described in claim 1, characterized in that: It has 2-3 heating elements stacked together to form a multi-stage heating element.

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