An integrated engine air intake pipe

Abstract

The utility model discloses an integrated engine air intake pipe, which belongs to the technical field of engine air intake, and solves the problem of low integration of existing engine air intake pipes. It includes an air intake pipe body, on which a plurality of air inlets are arranged, and on the air intake pipe body corresponding to the top of each air inlet, two methanol nozzle mounting holes for mounting a methanol nozzle are provided, and on the air intake pipe body corresponding to the bottom of each air inlet, a gasoline nozzle mounting hole for mounting a gasoline nozzle is provided, and a heater is detachably installed in each of the air inlets. The engine air intake pipe of the utility model integrates two fuel nozzles and a heater on the air intake pipe at the same time, has a high degree of integration, and effectively improves the heating effect on the air.

Description

Technical Field

[0001] The utility model relates to the technical field of engine air intake, and more specifically, to an integrated engine air intake pipe. Background Art

[0002] Most dual-fuel natural gas engines are another working mode of traditional diesel engines. The compression ratio of the original engine is not changed. Compared with dual-fuel engines, dual-fuel engines are more flexible to use and do not require major changes to the engine. Its working principle is to use a small amount of pilot diesel to inject into the cylinder, and then wait for it to be compressed and ignited to ignite the mixture of natural gas and air injected into the cylinder.

[0003] The existing engine intake pipe, such as patent number: CN 211623578 U, discloses an intake pipe structure for intake port injection of a 4-cylinder alcohol fuel engine, including a fixed sleeve block, the surface of the fixed sleeve block is symmetrically fixedly sleeved with the first cylinder body, the second cylinder body and the third cylinder body, and the fourth cylinder body, the surface of the cylinder body is fixedly provided with a methanol nozzle hole, the cylinder bodies are fixedly connected with a guide groove, and the surface of the fixed sleeve block is symmetrically fixedly sleeved with gasoline spray holes. The utility model relates to the technical field of vehicle engines. By using one gasoline nozzle for every two cylinders, the structure is simple and the cost is saved. The intake pipe structure is suitable for alcohol fuel or other dual-fuel engines that need to introduce gasoline to solve cold start. A high-pressure liquid column can be sprayed in through the gasoline spray hole and the guide groove under the condition of designing a certain angle, and the liquid column is atomized by using the narrow guide groove to make its negative pressure suction greater, the oil and gas mixing is faster and more complete, the switching of fuel mode is simple and smooth, and the combustion effect is better.

[0004] The existing engine intake pipe usually only integrates the nozzles of two fuels, and a heater needs to be added far away from the engine cylinder to heat the air, such as near the supercharger. The integration level is not high and the air heating effect is not good.

[0005] Therefore, it is urgent to design a new integrated engine intake pipe to solve the above-mentioned problems. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide an integrated engine air intake pipe in view of the above-mentioned deficiencies in the prior art, in which two fuel nozzles and a heater are integrated on the air intake pipe at the same time, with a high degree of integration, and the heating effect on the air is effectively improved.

[0007] The technical solution of the utility model is as follows: an integrated engine air intake pipe, including an air intake pipe body, on which a plurality of air inlets are arranged, and the air intake pipe body corresponding to the top of each of the air inlets is provided with two methanol nozzle mounting holes for mounting a methanol nozzle, and the air intake pipe body corresponding to the bottom of each of the air inlets is provided with a gasoline nozzle mounting hole for mounting a gasoline nozzle, and a heater is detachably installed in each of the air inlets.

[0008] As a further improvement, the heater is connected to the side wall of the air inlet via a first fastening bolt.

[0009] Furthermore, the heater is also connected to the side wall of the air inlet via a second fastening bolt, and the second fastening bolt is perpendicular to the first fastening bolt.

[0010] Furthermore, bolt holes are provided on the air intake pipe body corresponding to the top and bottom of each air intake port.

[0011] Furthermore, a process hole is provided on the air intake pipe body between two adjacent air intake ports.

[0012] Furthermore, a fixing bracket is provided at the bottom of the air intake pipe body between two adjacent air intake ports.

[0013] Furthermore, the axis lines of the two methanol nozzle mounting holes are parallel, and the intersection point of the axis line of the methanol nozzle mounting hole and the axis line of the gasoline nozzle mounting hole is located on the axis line of the air inlet.

[0014] Beneficial Effects

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The engine air intake pipe of the utility model integrates two kinds of fuel nozzles and a heater on the air intake pipe at the same time, thereby shortening the distance between the heater and the engine combustion chamber. When the fuel sprayed by the methanol nozzle or the gasoline nozzle reaches the engine combustion chamber, the air heated by the heater also quickly enters the engine combustion chamber, thereby reducing the distance of the hot air and thus ensuring the temperature of the hot air. The engine air intake pipe has a high degree of integration and effectively improves the heating effect on the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a side cross-sectional structural schematic diagram of the utility model.

[0019] Among them: 1-intake pipe body, 2-intake port, 3-methanol nozzle mounting hole, 4-gasoline nozzle mounting hole, 5-heater, 6-first fastening bolt, 7-second fastening bolt, 8-bolt hole, 9-process hole, 10-fixing bracket. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0021] See also Figure 1-2 The utility model discloses an integrated engine air intake pipe, comprising an air intake pipe body 1, on which a plurality of air intake ports 2 are arranged, each air intake port 2 corresponding to a cylinder of the engine, and the air intake pipe body 1 corresponding to the top of each air intake port 2 is provided with two methanol nozzle mounting holes 3 for mounting a methanol nozzle, and the air intake pipe body 1 corresponding to the bottom of each air intake port 2 is provided with a gasoline nozzle mounting hole 4 for mounting a gasoline nozzle, so as to realize the installation of dual-fuel nozzles, and a heater 5 is detachably installed in each air intake port 2, and the heater 5 is a product in the prior art, and is used for heating air, which will not be described in detail here.

[0022] The engine air intake pipe of the utility model integrates two kinds of fuel nozzles and the heater 5 on the air intake pipe at the same time, thereby shortening the distance between the heater 5 and the engine combustion chamber. When the fuel sprayed from the methanol nozzle or the gasoline nozzle reaches the engine combustion chamber, the air heated by the heater also quickly enters the engine combustion chamber, thereby reducing the distance of the hot air and thus ensuring the temperature of the hot air. The engine air intake pipe has a high degree of integration and effectively improves the heating effect on the air.

[0023] Preferably, the heater 5 is connected to the side wall of the air inlet 2 through the first fastening bolt 6. Specifically, the first fastening bolt 6 passes through the side wall of the air inlet 2 and is threadedly connected to the heater 5, so as to realize the detachable installation of the heater 5. Furthermore, the heater 5 is also connected to the side wall of the air inlet 2 through the second fastening bolt 7. Specifically, the nut of the second fastening bolt 7 is movably clamped on the heater 5. After the heater 5 is placed in the air inlet 2, the second fastening bolt 7 is pushed out and passed through to the outside of the air inlet 2, and then locked with the fastening nut. The heater 5 is reinforced by two fastening bolts, which further improves the installation stability of the heater. The second fastening bolt 7 is perpendicular to the first fastening bolt 6, so that the force on the heater 5 is more uniform.

[0024] Preferably, bolt holes 8 are provided on the air intake pipe body 1 corresponding to the top and bottom of each air intake port 2 to facilitate connection of the air intake pipe with the engine.

[0025] Preferably, process holes 9 are provided on the air intake pipe body 1 between two adjacent air intake ports 2, which can not only reduce the weight of the air intake pipe and facilitate installation, but also avoid interference with other parts of the engine.

[0026] Preferably, a fixing bracket 10 is provided at the bottom of the air intake pipe body 1 between two adjacent air intake ports 2 to facilitate the installation of other components and make the air intake pipe more integrated.

[0027] Preferably, the axes of the two methanol nozzle mounting holes 3 are parallel, and the intersection of the axis of the methanol nozzle mounting hole 3 and the axis of the gasoline nozzle mounting hole 4 is located on the axis of the air inlet 2, which can effectively increase the mixing effect of fuel and air in the engine combustion chamber.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. An integrated engine air intake pipe, comprising an air intake pipe body (1), wherein the air intake pipe body (1) is provided with a plurality of air intake ports (2), characterized in that: Two methanol nozzle mounting holes (3) for mounting a methanol nozzle are provided on the air intake pipe body (1) corresponding to the top of each air intake port (2), and a gasoline nozzle mounting hole (4) for mounting a gasoline nozzle is provided on the air intake pipe body (1) corresponding to the bottom of each air intake port (2), and a heater (5) is detachably installed in each air intake port (2).

2. The integrated engine air intake pipe according to claim 1, characterized in that: The heater (5) is connected to the side wall of the air inlet (2) via a first fastening bolt (6).

3. The integrated engine air intake pipe according to claim 2, characterized in that: The heater (5) is also connected to the side wall of the air inlet (2) via a second fastening bolt (7), and the second fastening bolt (7) is perpendicular to the first fastening bolt (6).

4. The integrated engine air intake pipe according to claim 1, characterized in that: Bolt holes (8) are provided on the air intake pipe body (1) corresponding to the top and bottom of each air intake port (2).

5. The integrated engine air intake pipe according to claim 1, characterized in that: A process hole (9) is provided on the air intake pipe body (1) between two adjacent air intake ports (2).

6. The integrated engine air intake pipe according to claim 1, characterized in that: A fixing bracket (10) is provided at the bottom of the air intake pipe body (1) between two adjacent air intake ports (2).

7. An integrated engine air intake pipe according to any one of claims 1 to 6, characterized in that: The axis centers of the two methanol nozzle mounting holes (3) are parallel, and the intersection of the axis center lines of the methanol nozzle mounting holes (3) and the gasoline nozzle mounting holes (4) is located on the axis center line of the air inlet (2).

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