Methanol engine methanol track pipe structure

Abstract

The utility model relates to a kind of methanol engine methanol rail pipe structure, belong to methanol engine field, including methanol cavity (1) and water cavity (2), the water cavity (2) is equipped in methanol cavity (1) bottom, the first alcohol pass (3) and the second alcohol pass (4) are equipped in methanol cavity (1), the first alcohol pass (3) is equipped with first nozzle mounting sleeve (5), the first nozzle mounting sleeve (5) is connected with first nozzle, the second alcohol pass (4) is equipped with second nozzle mounting sleeve (6), the second nozzle mounting sleeve (6) is connected with second nozzle. By setting two nozzles on methanol cavity, improve injection flow, simple structure, low in cost, methanol cavity and water cavity are set together, small space occupation, water cavity introduces coolant, methanol steady point is increased, and methanol atomization capacity is improved, methanol droplet diameter is reduced, and knock risk is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of methanol engines, specifically, it relates to a methanol rail structure for a methanol engine. Background Technology

[0002] A methanol engine is an internal combustion engine that uses methanol (CH3OH) as its primary fuel. It generates power by burning methanol and is widely used in shipbuilding, mining machinery, automobiles, and construction machinery. Existing methanol engines generally employ intake manifold + multi-point intake injection technology. However, single-nozzle engines suffer from insufficient flow and long injection pulse widths, resulting in limited power and low fuel economy.

[0003] A search revealed that Chinese patent CN213082912U, published on April 30, 2021, discloses a gasoline-methanol dual-fuel tank. This utility model relates to a gasoline-methanol dual-fuel tank, where a gasoline chamber and a methanol chamber are connected by connecting ribs. One or more shock-absorbing pads are provided on the upper and lower end faces of both the gasoline and methanol chambers. The methanol chamber has a methanol filler port on its outer side, and a methanol pump interface, a methanol vent nozzle, a sensor seat, and a methanol GVV valve seat on its upper end face. The gasoline chamber has a gasoline filler port on its outer side, and a gasoline electric pump interface, a gasoline vent nozzle, and a gasoline GVV valve seat on its upper end face. Multiple perforated pipe clamps for mounting evaporator tubes are sequentially arranged from back to front on the upper end faces of both the gasoline and methanol chambers. However, its complex structure makes it difficult to simply increase the methanol injection flow rate. Utility Model Content

[0004] The present invention aims to provide a methanol rail structure for a methanol engine with high injection flow and simple structure.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A methanol rail structure for a methanol engine, characterized in that it includes a methanol chamber and a water chamber, the water chamber being located at the bottom of the methanol chamber, the methanol chamber having a first methanol inlet and a second methanol inlet, the first methanol inlet having a first nozzle mounting sleeve connected to the first nozzle mounting sleeve, and the second methanol inlet having a second nozzle mounting sleeve connected to the second nozzle mounting sleeve.

[0007] The bottom of the methanol chamber is provided with a third methanol inlet, and the third methanol inlet is provided with a methanol inlet connector.

[0008] The water chamber is provided with a water inlet connector at one end, and a water inlet is provided at the bottom of the water inlet connector. The water inlet is connected to the coolant pipeline of the methanol engine.

[0009] The other end of the water chamber is provided with a return water connector, and the bottom of the return water connector is provided with a return water inlet, which is connected to the water pump front pipeline of the methanol engine.

[0010] The methanol chamber is equipped with a mounting bracket, which is connected to the bottom of the water chamber.

[0011] The mounting bracket is L-shaped, and the top of the mounting bracket is provided with mounting holes.

[0012] The mounting brackets are configured in multiple sets.

[0013] The methanol chamber is L-shaped, and the water chamber is U-shaped.

[0014] The methanol chamber is chamfered.

[0015] The technical advantages of this invention are as follows: by setting two nozzles on the methanol chamber, the injection flow rate is increased. The structure is simple and the cost is low. The methanol rail pipe includes a methanol chamber and a water chamber, which occupies little space. The water chamber introduces coolant, and the methanol atomization ability is improved after the methanol stabilization point is raised, which reduces the methanol droplet diameter and reduces the risk of knocking. Attached Figure Description

[0016] This manual includes the following figures, which illustrate the following:

[0017] Figure 1 This is a cross-sectional view of a methanol rail pipe structure for a methanol engine.

[0018] Figure 2 This is a schematic diagram of a methanol rail structure for a methanol engine.

[0019] The following are marked in the diagram: 1. Methanol chamber; 2. Water chamber; 3. First methanol inlet; 4. Second methanol inlet; 5. First nozzle mounting sleeve; 6. Second nozzle mounting sleeve; 7. Third methanol inlet; 8. Methanol inlet connector; 9. Water inlet connector; 10. Water inlet; 11. Water return connector; 12. Water return outlet; 13. Mounting bracket; 14. Mounting hole; 15. Methanol inlet. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0021] like Figure 1 and Figure 2As shown, a methanol engine methanol rail structure includes a methanol chamber 1 and a water chamber 2. The water chamber 2 is located at the bottom of the methanol chamber 1. The methanol chamber 1 has a first methanol inlet 3 and a second methanol inlet 4. The first methanol inlet 3 has a first nozzle mounting sleeve 5, which is connected to a first nozzle. The second methanol inlet 4 has a second nozzle mounting sleeve 6, which is connected to a second nozzle. The methanol chamber 1 is made of stainless steel after stamping and bending, and the joints are laser welded to ensure excellent welding and sealing. The overall shape is L-shaped. The first methanol inlet 3, the second methanol inlet 4, and the third methanol inlet 7 are all laser-cut before stamping. The first methanol inlet 3 is welded to the first nozzle mounting sleeve 5, and the second methanol inlet 4 is welded to the second nozzle mounting sleeve 6. By setting two nozzles on the methanol chamber 1, the injection flow rate is increased. The methanol chamber 1 is relatively long, so multiple sets of first and second nozzles can be set. The stainless steel plate is bent into a U-shaped structure, and the water chamber 2 is formed at the bottom of the methanol chamber 1 by laser welding.

[0022] The methanol chamber 1 has a third methanol inlet 7 at the bottom, and a methanol inlet connector 8 is provided on the third methanol inlet 7. The methanol inlet connector 8 has a methanol inlet 15 at the bottom. During the operation of the methanol engine, methanol enters the methanol chamber 1 through the methanol inlet 15 via the methanol pump.

[0023] One end of the water chamber 2 is equipped with a water inlet connector 9, and the bottom of the water inlet connector 9 is equipped with a water inlet 10, which is connected to the coolant pipeline of the methanol engine. The coolant in the coolant pipeline enters the water chamber 2 through the water inlet, and the heat of the engine coolant is used to heat the methanol. After the methanol temperature rises, the methanol atomization ability can be improved and the methanol droplet diameter can be reduced, thus reducing the risk of knocking.

[0024] The other end of the water chamber 2 is provided with a return water connector 11, and the bottom of the return water connector 11 is provided with a return water port 12, which is connected to the water pump front pipeline of the methanol engine. The coolant of the water chamber 2 returns to the water pump front pipeline of the methanol engine from the return water port 12 at the bottom of the return water connector 11.

[0025] A mounting bracket 13 is provided on the methanol chamber 1, and the mounting bracket 13 is connected to the bottom of the water chamber 2. The mounting bracket 13 is connected to one side of the methanol chamber 1 and the bottom of the water chamber 2 respectively.

[0026] The mounting bracket 13 is L-shaped, and the top of the mounting bracket 13 is provided with mounting holes 14. The mounting bracket 13 is used to install the methanol chamber 1 and the water chamber 2. The L-shape allows for better fixation. The mounting bracket 13 is provided with mounting holes 14, which can be used to fix the entire methanol rail pipe.

[0027] Multiple sets of mounting brackets 13 are provided. In this embodiment, three sets of mounting brackets 13 are provided, and multiple sets of mounting brackets 13 provide better fixation.

[0028] The methanol chamber 1 is L-shaped, and the water chamber 2 is U-shaped. The methanol chamber 1 is stamped into an L-shape, and the water chamber 2 is bent into a U-shape, which is simple in structure and low in cost.

[0029] The methanol chamber 1 is chamfered. The chamfer on the methanol chamber 1 can disperse stress concentration in mechanical parts and extend their service life.

[0030] The working principle of this utility model is as follows: the methanol chamber 1 is made of stainless steel through punching and bending. Before punching, the first methanol inlet 3, the second methanol inlet 4, and the third methanol inlet 7 are formed by laser cutting. The joints are laser welded to ensure excellent welding and sealing. The first methanol inlet 3 is welded to the first nozzle mounting sleeve 5, and the second methanol inlet 4 is welded to the second nozzle mounting sleeve 6. By setting two nozzles on the methanol chamber 1, the injection flow rate is increased. The structure is simple and the cost is low. The stainless steel plate is bent into a U-shaped structure, and the water chamber 2 is formed at the bottom of the methanol chamber 1 by laser welding. Multiple sets of mounting brackets 13 fix one side of the methanol chamber 1 and the bottom of the water chamber 2. The methanol chamber 1 is provided with a third methanol inlet. The methanol inlet 7 is equipped with an inlet connector 8, and an inlet 15 at the bottom of the inlet connector 8. During methanol engine operation, methanol enters the methanol chamber 1 through the inlet 15 via the methanol pump. The water chamber 2 has an inlet connector 9 at one end, with an inlet 10 at the bottom, connected to the methanol engine's coolant pipeline. The water chamber 2 also has a return connector 11 at the other end, with a return port 12 at the bottom, connected to the methanol engine's water pump pre-pipeline. Coolant from the coolant pipeline enters the water chamber 2 through the inlet, and coolant from the water chamber 2 returns to the methanol engine's water pump pre-pipeline through the return port 12 at the bottom of the return connector 11. The heat from the engine coolant heats the methanol, increasing its temperature and improving its atomization ability, as well as reducing the droplet diameter and lowering the risk of knocking.

[0031] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A methanol rail structure for a methanol engine, characterized in that: It includes a methanol chamber (1) and a water chamber (2). The water chamber (2) is located at the bottom of the methanol chamber (1). The methanol chamber (1) is provided with a first methanol inlet (3) and a second methanol inlet (4). The first methanol inlet (3) is provided with a first nozzle mounting sleeve (5) and a first nozzle is connected to the first nozzle mounting sleeve (5). The second methanol inlet (4) is provided with a second nozzle mounting sleeve (6) and a second nozzle is connected to the second nozzle.

2. The methanol rail structure for a methanol engine according to claim 1, characterized in that: The bottom of the methanol chamber (1) is provided with a third methanol inlet (7), and the third methanol inlet (7) is provided with a methanol inlet connector (8).

3. The methanol rail structure for a methanol engine according to claim 2, characterized in that: The water chamber (2) is provided with a water inlet connector (9) at one end, and a water inlet (10) is provided at the bottom of the water inlet connector (9). The water inlet (10) is connected to the coolant pipeline of the methanol engine.

4. The methanol rail structure for a methanol engine according to claim 3, characterized in that: The other end of the water chamber (2) is provided with a return water connector (11), and the bottom of the return water connector (11) is provided with a return water port (12), which is connected to the water pump front pipeline of the methanol engine.

5. The methanol rail structure for a methanol engine according to claim 4, characterized in that: The methanol chamber (1) is provided with a mounting bracket (13), which is connected to the bottom of the water chamber (2).

6. The methanol rail structure for a methanol engine according to claim 5, characterized in that: The mounting bracket (13) is L-shaped, and the top of the mounting bracket (13) is provided with mounting holes (14).

7. The methanol rail structure for a methanol engine according to claim 6, characterized in that: The mounting bracket (13) is configured in multiple sets.

8. A methanol rail structure for a methanol engine according to any one of claims 1-7, characterized in that: The methanol chamber (1) is L-shaped, and the water chamber (2) is U-shaped.

9. A methanol rail structure for a methanol engine according to claim 8, characterized in that: The methanol chamber (1) is chamfered.

Images