CN116624255A

CN116624255A - V-shaped engine exhaust pipe

Info

Publication number: CN116624255A
Application number: CN202310797858.4A
Authority: CN
Inventors: 苏异新; 卢雁; 唐克远
Original assignee: Guangxi Yuchai Marine and Genset Power Co Ltd
Current assignee: Guangxi Yuchai Marine and Genset Power Co Ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-08-22

Abstract

The invention discloses a V-shaped engine exhaust pipe, belongs to the field of engine accessories, and solves the problem that potential safety hazards exist due to the single-layer structure of the existing multi-section exhaust pipe. The exhaust pipe comprises a plurality of sections of unit pipe bodies, two adjacent sections of unit pipe bodies are connected through corrugated pipes, the outer wall of each section of unit pipe body is wrapped with a heat insulation layer, and a protecting shell which covers the plurality of sections of unit pipe bodies and the corrugated pipes simultaneously is arranged at the top of the exhaust pipe. The V-shaped engine exhaust pipe meets the requirement of convenience in installation, can make up for assembly errors, effectively reduces surface temperature, improves use safety, and further prevents heat from radiating peripheral parts.

Description

V-shaped engine exhaust pipe

Technical Field

The invention relates to the field of engine accessories, in particular to a V-shaped engine exhaust pipe.

Background

The exhaust system mainly comprises an exhaust manifold, an exhaust pipe and a silencer, wherein the exhaust pipe is an important part of the engine exhaust system. The traditional engine exhaust pipe is an integral pipeline, two ends of the pipeline are connected with other pipelines through end flanges, and the middle of the pipeline is connected with an engine air outlet through a middle flange. Along with the structure continuous upgrading change of blast pipe, for the installation of convenient blast pipe, make up for assembly error, if the patent number is: CN202022723794.8 is a connection structure of a sectional exhaust pipe. The existing exhaust pipes are also made into sectional structures, particularly the V-shaped engine exhaust pipes are large in length and weight, and the problem of assembly errors can be well solved by adopting the sectional structures.

However, the existing sectional exhaust pipe is generally of a single-layer structure, the surface temperature of the exhaust pipe is generally high, potential safety hazards exist, and meanwhile, radiation heating is also caused to peripheral parts. Therefore, there is a need to design a new V-type engine exhaust pipe.

Disclosure of Invention

The invention aims to solve the technical problems of the prior art, and provides the V-shaped engine exhaust pipe which meets the requirement of convenience in installation, can make up for assembly errors, effectively reduces surface temperature, improves use safety and further prevents heat from radiating peripheral parts.

The technical scheme of the invention is as follows: the utility model provides a V type engine blast pipe, includes a plurality of sections unit body, adjacent two sections the unit body between connect through the bellows, every section the outer wall of unit body all wraps up there is the insulating layer, blast pipe top be equipped with the protecting crust with multistage unit body and bellows cover simultaneously.

As a further improvement, the two ends of the corrugated pipe are connected with the unit pipe body through hoops.

Further, the protecting shell is detachably connected with the exhaust pipe.

Further, each section of the unit pipe body is provided with at least one fixed lug, and the protective shell is connected with the fixed lug through a screw.

Further, a long waist-shaped hole is formed in the position, corresponding to the position of the fixed lug, of the protective shell, and the screw penetrates through the long waist-shaped hole to be connected with the fixed lug.

Further, the fixed lugs are bosses protruding to the outer wall of the unit pipe body, and the protective shell and the heat insulation layer are arranged at intervals.

Further, the protective shell is of a U-shaped structure, one end of an opening of the protective shell faces downwards, and the end face of one end of the opening of the protective shell is located above the end face of the middle flange of the exhaust pipe.

Further, the protecting shell comprises a plurality of unit shells and a connecting shell, wherein the unit shells are arranged in a split mode, two adjacent unit shells are detachably connected through the connecting shell, the unit shells are in one-to-one correspondence with the positions of the multi-section unit pipe bodies, and the connecting shells are in one-to-one correspondence with the positions of the multi-section corrugated pipes.

Further, the two ends of the connecting shell are provided with long strip-shaped holes axially arranged along the connecting shell, connecting bolts are movably inserted into the long strip-shaped holes, and the connecting bolts penetrate through the long strip-shaped holes to be in threaded connection with the unit shell.

Further, a plurality of reinforcing ribs are arranged on each unit shell.

Advantageous effects

Compared with the prior art, the invention has the following advantages:

1. the V-shaped engine exhaust pipe adopts a sectional design structure, the middle part of the V-shaped engine exhaust pipe is connected by the corrugated pipe, the requirement of convenience in installation is met, assembly errors can be made up, the surface temperature of the exhaust pipe is effectively reduced through the arrangement of the heat insulation layer, the use safety is improved, meanwhile, through the arrangement of the protective shell, peripheral parts are further prevented from radiating by heat, the protection effect on the exhaust pipe is achieved, and the service life of the exhaust pipe is prolonged.

2. The V-shaped engine exhaust pipe adopts the sectional structure of the unit shell and the connecting shell, so that the connecting shell or the unit shell is convenient to be disassembled and assembled independently, a certain section of unit pipe body or corrugated pipe is maintained, the use is more convenient, meanwhile, the connecting shell and the unit shell can slide relatively axially, and the corrugated pipe can expand or stretch in the actual use process of the exhaust pipe, so that the vibration between the unit pipe bodies is absorbed, and the problem that the connecting shell and the unit shell are rigidly connected to cause vibration interference to the connection of the protecting shell and the exhaust pipe is prevented.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the structure of the present invention with the protective shell removed;

FIG. 3 is a schematic view of the structure of the present invention after removal of the protective shell and insulation;

fig. 4 is an enlarged schematic view of a partial structure of a connection portion between a unit pipe body and a bellows in the present invention.

Wherein: 1-unit pipe body, 2-corrugated pipe, 3-clamp, 4-heat insulation layer and 5-protective shell; 6-fixed lugs, 7-middle flanges, 51-unit shells, 52-connecting shells, 53-long strip-shaped holes, 54-connecting bolts and 55-reinforcing ribs.

Detailed Description

The invention will be further described with reference to specific embodiments in the drawings.

Referring to fig. 1-4, the V-shaped engine exhaust pipe comprises a plurality of sections of unit pipe bodies 1, two adjacent sections of unit pipe bodies 1 are connected through a corrugated pipe 2, the outer wall of each section of unit pipe body 1 is wrapped with a heat insulation layer 4, the heat insulation layer 4 can be heat insulation cotton and plays a role in heat insulation of the exhaust pipe.

The V-shaped engine exhaust pipe adopts a sectional design structure, the middle part of the V-shaped engine exhaust pipe is connected by the corrugated pipe, the requirement of convenience in installation is met, assembly errors can be made up, the surface temperature of the exhaust pipe is effectively reduced through the arrangement of the heat insulation layer, the use safety is improved, meanwhile, through the arrangement of the protective shell, peripheral parts are further prevented from radiating by heat, the protection effect on the exhaust pipe is achieved, and the service life of the exhaust pipe is prolonged.

Preferably, both ends of the corrugated pipe 2 are connected with the unit pipe body 1 through the clamp 3, and the mode of the clamp 3 connection is adopted, so that the corrugated pipe is more convenient to assemble and disassemble.

Preferably, the protecting shell 5 is detachably connected with the exhaust pipe, so that the protecting shell is convenient to disassemble, assemble and maintain. Further, each section of unit pipe body 1 is provided with at least one fixed lug 6, and the protective shell 5 is connected with the fixed lug 6 through a screw, so that the detachable connection of the protective shell 5 is realized. The long waist-shaped hole is formed in the position, corresponding to the position of the fixed lug 6, of the protective shell 5, the screw penetrates through the long waist-shaped hole to be connected with the fixed lug 6, and when the protective shell is installed, the position of the screw in the long waist-shaped hole can be adjusted, so that the screw can be quickly aligned with the threaded hole of the fixed lug 6, and the protective shell can be quickly installed. Furthermore, the fixing lugs 6 are bosses protruding from the outer wall of the unit pipe body 1, and the protecting shell 5 and the heat insulation layer 4 are arranged at intervals, so that the protecting shell 5 and the heat insulation layer 4 are in a non-contact state, the problem that the protecting shell 5 rubs the heat insulation layer 4 along with engine vibration is prevented, the service life of the heat insulation layer 4 is effectively prolonged, gaps exist between the protecting shell 5 and the heat insulation layer 4, and the effect of ventilation between the protecting shell 5 and the heat insulation layer 4 is achieved.

Preferably, the protecting shell 5 is of a U-shaped structure, one end of the opening of the protecting shell 5 is downward, and the end face of one end of the opening of the protecting shell 5 is located above the end face of the middle flange 7 of the exhaust pipe, so that the protecting shell 5 is not contacted with the engine, the problem that the protecting shell 5 is damaged due to friction generated when the protecting shell vibrates along with the engine is prevented, and ventilation inside the protecting shell 5 is facilitated.

Preferably, the protecting shell 2 comprises a plurality of unit shells 51 and a connecting shell 52 which are arranged in a split mode, wherein two adjacent unit shells 51 are detachably connected through the connecting shell 52, the plurality of unit shells 51 are in one-to-one correspondence with the positions of the multi-section unit pipe body 1, and the plurality of connecting shells 52 are in one-to-one correspondence with the positions of the multi-section corrugated pipe 2. The two ends of the connecting shell 52 are provided with elongated holes 53 which are axially arranged along the connecting shell, each elongated hole 53 is movably inserted with a connecting bolt 54, and the connecting bolts 54 penetrate through the elongated holes 53 to be in threaded connection with the unit shell 51, so that the unit shell 51 is detachably connected with the connecting shell 52.

The V-shaped engine exhaust pipe adopts the sectional structure of the unit shell and the connecting shell, so that the connecting shell or the unit shell is convenient to be disassembled and assembled independently, a certain section of unit pipe body or corrugated pipe is maintained, the use is more convenient, meanwhile, the connecting shell and the unit shell can slide relatively axially, and the corrugated pipe can expand or stretch in the actual use process of the exhaust pipe, so that the vibration between the unit pipe bodies is absorbed, and the problem that the connecting shell and the unit shell are rigidly connected to cause vibration interference to the connection of the protecting shell and the exhaust pipe is prevented.

Preferably, each unit housing 51 is provided with a plurality of reinforcing ribs 55, and the plurality of reinforcing ribs 55 are axially arranged along the unit housing 51 to enhance the structural strength of the unit housing 51.

While only the preferred embodiments of the present invention have been described above, it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these do not affect the effect of the implementation of the present invention and the utility of the patent.

Claims

1. The utility model provides a V type engine blast pipe, includes a plurality of sections unit body (1), adjacent two sections unit body (1) between connect through bellows (2), its characterized in that, every section the outer wall of unit body (1) all wraps up has insulating layer (4), the blast pipe top be equipped with multistage unit body (1) and bellows (2) cover protecting crust (5) simultaneously.

2. A V-type engine exhaust pipe according to claim 1, wherein both ends of the bellows (2) are connected to the unit pipe body (1) by clips (3).

3. A V-type engine exhaust pipe according to claim 1, characterized in that the protective casing (5) is detachably connected to the exhaust pipe.

4. A V-shaped engine exhaust pipe according to claim 3, wherein each section of the unit pipe body (1) is provided with at least one fixing lug (6), and the protecting shell (5) is connected with the fixing lug (6) through a screw.

5. The exhaust pipe of the V-shaped engine according to claim 4, wherein the protecting shell (5) is provided with a long waist-shaped hole at a position corresponding to the fixed lug (6), and the screw penetrates through the long waist-shaped hole to be connected with the fixed lug (6).

6. The V-shaped engine exhaust pipe according to claim 4, wherein the fixing lugs (6) are bosses protruding from the outer wall of the unit pipe body (1), and the protecting shell (5) and the heat insulating layer (4) are arranged at intervals.

7. The exhaust pipe of the V-type engine according to claim 1, wherein the protecting shell (5) has a U-shaped structure, an opening end of the protecting shell (5) is disposed downward, and an opening end face of the protecting shell (5) is located above an end face of the intermediate flange (7) of the exhaust pipe.

8. A V-shaped engine exhaust pipe according to any one of claims 1-7, wherein the protecting shell (2) comprises a plurality of unit shells (51) and a connecting shell (52) which are arranged in a split mode, two adjacent unit shells (51) are detachably connected through the connecting shell (52), the plurality of unit shells (51) are in one-to-one correspondence with the positions of the multi-section unit pipe body (1), and the plurality of connecting shells (52) are in one-to-one correspondence with the positions of the multi-section corrugated pipe (2).

9. The exhaust pipe of the V-shaped engine according to claim 8, wherein the two ends of the connecting shell (52) are provided with long strip-shaped holes (53) which are axially arranged along the connecting shell, connecting bolts (54) are movably inserted into the long strip-shaped holes (53), and the connecting bolts (54) penetrate through the long strip-shaped holes (53) to be in threaded connection with the unit shell (51).

10. A V-type engine exhaust pipe according to claim 8, wherein a plurality of reinforcing ribs (55) are provided on each of said unit cases (51).