Air inlet pipe of single-cylinder diesel engine

Abstract

The utility model discloses an air inlet pipe of a single-cylinder diesel engine. The air inlet pipe comprises a steel pipe, a sleeve, a welding pipe, a first fixing flange, a blind hole flange, a second fixing flange and a connecting flange, one end of the sleeve is inserted into the steel pipe, the sleeve is detachably connected with the steel pipe, a first fixing flange is fixed to the other end of the steel pipe, one end of the first fixing flange is connected with the blind hole flange through a bolt, and a second fixing flange is fixed to the other end of the sleeve. One end of the second fixing flange is connected with a connecting flange through a bolt, the welding pipe is fixed to the outer side face of the steel pipe, the welding pipe is communicated with the interior of the steel pipe, the air inlet pipe of the single-cylinder diesel engine is convenient to disassemble and assemble, sufficient air is provided for a combustion chamber of the single-cylinder diesel engine, and it is guaranteed that combustion of the single-cylinder diesel engine is conducted smoothly.

Description

Technical Field

[0001] This utility model relates to the field of diesel engine testing technology, specifically to an intake manifold for a single-cylinder diesel engine. Background Technology

[0002] Single-cylinder diesel engines simulate the working process of multi-cylinder engines, gradually improving the accuracy of this simulation. Accurate simulation of the multi-cylinder engine's working process can significantly reduce the workload of multi-cylinder engine testing, thereby greatly shortening product development cycles and lowering development costs.

[0003] As a component that supplies air, the intake manifold directly affects the entire combustion process of a single-cylinder diesel engine. Therefore, designing an intake manifold for a single-cylinder diesel engine is essential. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an intake pipe for a single-cylinder diesel engine, which provides sufficient air to the combustion chamber of the single-cylinder diesel engine, ensuring smooth combustion of the single-cylinder diesel engine, and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a single-cylinder diesel engine intake pipe, comprising a steel pipe, a sleeve, a welded pipe, a first fixed flange, a blind hole flange, a second fixed flange, and a connecting flange;

[0006] One end of the sleeve is inserted into the steel pipe, and the sleeve and the steel pipe are detachably connected. The other end of the steel pipe is fixed with a first fixing flange. One end of the first fixing flange is connected to a blind hole flange by bolts. The other end of the sleeve is fixed with a second fixing flange. One end of the second fixing flange is connected to a connecting flange by bolts. The welded pipe is fixed to the outer side of the steel pipe and is connected to the inside of the steel pipe.

[0007] As a preferred embodiment of this utility model, a second welding plate is evenly distributed on the outer side of one end of the sleeve, and a first welding plate is fixed on the outer side of one end of the steel pipe at a position corresponding to the second welding plate. The first welding plate and the second welding plate are fixedly connected by connecting bolts.

[0008] As a preferred embodiment of this utility model, a stepped hole is machined inside one end of the steel pipe, one end of the sleeve is fitted with the stepped surface of the stepped hole, and a third sealing gasket is provided between the sleeve and the stepped surface of the stepped hole.

[0009] As a preferred embodiment of this utility model, a first sealing gasket is provided between the first fixed flange and the blind hole flange, and a second sealing gasket is provided between the second fixed flange and the connecting flange.

[0010] As a preferred embodiment of this utility model, double-ended studs pass through the blind hole flange, the first fixed flange, the second fixed flange, and the connecting flange. The double-ended studs are evenly distributed around the central axis of the steel pipe, and both ends of the double-ended studs are tightened and fixed by lock nuts.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The intake pipe of this single-cylinder diesel engine forms an intake channel by inserting a sleeve into the inside of a steel pipe, and the two are fixedly connected by a first welding plate, a second welding plate and connecting bolts, which facilitates installation. By setting a first fixed flange and a blind hole flange at one end of the steel pipe, air can only enter the single-cylinder diesel engine from the welded pipe on the outside of the steel pipe, ensuring the air intake volume. By setting a second fixed flange and a connecting flange at one end of the sleeve, air can easily enter, ensuring smooth combustion of the single-cylinder diesel engine. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a main sectional view of the present invention.

[0014] In the diagram: 1. Steel pipe, 2. Sleeve, 3. Welded pipe, 4. First fixed flange, 5. Blind hole flange, 6. First sealing gasket, 7. Second fixed flange, 8. Connecting flange, 9. Second sealing gasket, 10. Third sealing gasket, 11. First welding plate, 12. Second welding plate, 13. Connecting bolt, 14. Double-ended stud, 15. Locking nut. Detailed Implementation

[0015] 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 scope of protection of the present utility model.

[0016] Please see Figure 1-2 This utility model provides a technical solution: a single-cylinder diesel engine intake pipe, including a steel pipe 1, a sleeve 2, a welded pipe 3, a first fixed flange 4, a blind hole flange 5, a second fixed flange 7, and a connecting flange 8;

[0017] One end of the sleeve 2 is inserted into the steel pipe 1, and the sleeve 2 and the steel pipe 1 form an intake pipe assembly. The sleeve 2 and the steel pipe 1 are detachably connected for easy installation and disassembly. The central axes of the sleeve 2 and the steel pipe 1 coincide. The other end of the steel pipe 1 is fixed with a first fixed flange 4. One end of the first fixed flange 4 is connected to a blind hole flange 5 by bolts, forming a closed intake passage. The other end of the sleeve 2 is fixed with a second fixed flange 7. One end of the second fixed flange 7 is connected to a connecting flange 8 by bolts, so that air can enter the intake passage formed by the sleeve 2 and the steel pipe 1 from the center hole of the connecting flange 8 and the second fixed flange 7. The welded pipe 3 is fixed on the outer side of the steel pipe 1 and is connected to the inside of the steel pipe 1. Air enters the welded pipe 3 from the intake passage and then enters the single-cylinder diesel engine from the welded pipe 3, providing sufficient air to the combustion chamber of the single-cylinder diesel engine.

[0018] Furthermore, in order to facilitate the rapid assembly of the sleeve 2 and the steel pipe 1, a second welding plate 12 is evenly distributed on the outer side of one end of the sleeve 2, and a first welding plate 11 is fixed on the outer side of one end of the steel pipe 1 at the position corresponding to the second welding plate 12. The first welding plate 11 and the second welding plate 12 are fixedly connected by connecting bolts 13, and the threaded end of the connecting bolts 13 is tightened by nuts.

[0019] To facilitate the insertion of the sleeve 2 into the steel pipe 1, a stepped hole is machined inside one end of the steel pipe 1. One end of the sleeve 2 fits against the stepped surface of the stepped hole, and a third sealing gasket 10 is provided between the sleeve 2 and the stepped surface of the stepped hole to prevent air leakage.

[0020] To further ensure air intake and prevent air leakage, a first sealing gasket 6 is provided between the first fixed flange 4 and the blind flange 5, and a second sealing gasket 9 is provided between the second fixed flange 7 and the connecting flange 8.

[0021] Furthermore, in order to ensure the connection stability of the entire intake pipe assembly, double-ended studs 14 are passed through the blind flange 5, the first fixed flange 4, the second fixed flange 7 and the connecting flange 8. The double-ended studs 14 are evenly distributed around the central axis of the steel pipe 1, and both ends of the double-ended studs 14 are tightened and fixed by lock nuts 15.

[0022] In use: Fix the first fixed flange 4 and blind hole flange 5 at one end of the steel pipe 1 with bolts, and fix the second fixed flange 7 and connecting flange 8 at one end of the sleeve 2 with bolts. At the same time, ensure that the holes around the outer perimeter of the first fixed flange 4, blind hole flange 5, second fixed flange 7 and connecting flange 8 are aligned. Then insert the other end of the sleeve 2 into the steel pipe 1, so that the second welding plate 12 on the sleeve 2 is aligned with the first welding plate 11 on the steel pipe 1. Fix the first welding plate 11 and the second welding plate 12 by passing the connecting bolt 13 through them and tightening the nuts. Finally, pass the double-ended bolt 14 through the first fixed flange 4, blind hole flange 5, second fixed flange 7 and connecting flange 8 in sequence. Tighten the two ends of the double-ended bolt 14 with lock nuts 15. Finally, install the welded pipe 3 inside the single-cylinder diesel engine.

[0023] The parts of the utility model not described in detail are prior art. Although embodiments of the utility model 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 these embodiments without departing from the principles and spirit of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An intake manifold for a single-cylinder diesel engine, characterized in that: It includes a steel pipe (1), a sleeve (2), a welded pipe (3), a first fixed flange (4), a blind hole flange (5), a second fixed flange (7), and a connecting flange (8); One end of the sleeve (2) is inserted into the steel pipe (1), and the sleeve (2) and the steel pipe (1) are detachably connected. The other end of the steel pipe (1) is fixed with a first fixing flange (4). One end of the first fixing flange (4) is connected to a blind hole flange (5) by bolts. The other end of the sleeve (2) is fixed with a second fixing flange (7). One end of the second fixing flange (7) is connected to a connecting flange (8) by bolts. The welded pipe (3) is fixed on the outer side of the steel pipe (1), and the welded pipe (3) is connected to the inside of the steel pipe (1).

2. The intake manifold for a single-cylinder diesel engine according to claim 1, characterized in that: The outer side of one end of the sleeve (2) is evenly distributed with second welding plates (12), and the outer side of one end of the steel pipe (1) is fixed with a first welding plate (11) at a position corresponding to the second welding plate (12). The first welding plate (11) and the second welding plate (12) are fixedly connected by connecting bolts (13).

3. The intake manifold for a single-cylinder diesel engine according to claim 1, characterized in that: The steel pipe (1) has a stepped hole machined inside one end, and one end of the sleeve (2) is in contact with the stepped surface of the stepped hole, and a third sealing gasket (10) is provided between the sleeve (2) and the stepped surface of the stepped hole.

4. The intake manifold for a single-cylinder diesel engine according to claim 1, characterized in that: A first sealing gasket (6) is provided between the first fixed flange (4) and the blind hole flange (5), and a second sealing gasket (9) is provided between the second fixed flange (7) and the connecting flange (8).

5. The intake manifold for a single-cylinder diesel engine according to claim 1, characterized in that: Double-ended studs (14) pass through the blind hole flange (5), the first fixed flange (4), the second fixed flange (7) and the connecting flange (8). The double-ended studs (14) are evenly distributed around the central axis of the steel pipe (1), and both ends of the double-ended studs (14) are tightened and fixed by lock nuts (15).

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