CN210049950U

CN210049950U - Sledge exhaust system

Info

Publication number: CN210049950U
Application number: CN201920946941.2U
Authority: CN
Inventors: 曾智勇; 邓爵; 付仕春; 阎琪
Original assignee: Chongqing Wan Di Special Type Vehicle Co Ltd
Current assignee: Chongqing Wan Di Special Type Vehicle Co Ltd
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-02-11
Anticipated expiration: 2029-06-21

Abstract

The utility model discloses a sled vehicle exhaust system, it can reduce the inlet air temperature of silencer, improves noise elimination effect. The utility model provides a sled vehicle exhaust system, includes the frame to and engine, muffler, the steering column of setting on the frame, the one end of blast pipe is connected to the gas vent of engine, the other end of blast pipe extends forward and bypasses the steering column, extends the air inlet of connecting the muffler again backward, forms the blast pipe that is the U-shaped.

Description

Sledge exhaust system

Technical Field

The utility model relates to a sled technical field especially relates to a sled exhaust system.

Background

At present, the sledge vehicle with medium and large displacement mainly uses a two-stroke engine, the noise of the two-stroke engine is large, and in order to reduce the noise and reduce the emission, a set of box type straight-line silencer specially belonging to the two-stroke engine is arranged at present.

However, as the emission requirements are gradually increased, more and more sledges adopt four-stroke engines, the emission temperature of the four-stroke engines is higher, the silencing of the sledges adopting the four-stroke engines usually adopts box-type back-pressure silencers, the volume of the box-type back-pressure silencers is larger, the sledge silencers are arranged on the front side, the installation space is limited, in addition, the increase of the volume of the silencers can increase the weight of the whole sledge, and the increase of the weight can influence the performance of the whole sledge; if the box type straight-line silencer is still adopted to match the four-stroke engine, the silencing effect is poor due to the fact that the air inlet temperature is too high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a sled vehicle exhaust system, it can reduce the inlet air temperature of silencer, improves noise cancelling effect.

The purpose of the utility model is realized like this:

the utility model provides a sled vehicle exhaust system, includes the frame to and engine, muffler, the steering column of setting on the frame, the one end of blast pipe is connected to the gas vent of engine, the other end of blast pipe extends forward and bypasses the steering column, extends the air inlet of connecting the muffler again backward, forms the blast pipe that is the U-shaped.

Preferably, the engine is a four-stroke engine, and the muffler is a cassette inline muffler.

In order to further increase the heat dissipation effect of the exhaust pipe, preferably, the exhaust pipe further comprises a shell of the sledge, wherein an air inlet is formed in the front end of the shell, air outlets are formed in two sides of the rear end of the shell respectively, and the bending portion of the exhaust pipe is located right behind the air inlet. The cold air that the air intake got into can carry out the forced air cooling to the portion of bending of blast pipe.

In order to reduce the intake air temperature of the engine and optimize the working environment of the engine, preferably, the air inlet of the engine is connected with an air filter assembly through a pipeline, and the air filter assembly is positioned between the engine and the silencer and is positioned right behind the exhaust pipe. The cold air entering from the air inlet can cool the air filter assembly, so that the working temperature of the engine is reduced.

Preferably, the outer side of the silencer is provided with a stainless steel thermal baffle. Preventing scald during maintenance or overturning.

Preferably, the exhaust port of the engine and the air inlet of the silencer are respectively provided with a connecting pipe, and the end part of the connecting pipe is provided with a hook lug for fixing the exhaust pipe.

Preferably, an oxygen sensor mounting lug is arranged at one end of the exhaust pipe adjacent to the engine.

Since the technical scheme is used, the utility model discloses prolong the length of blast pipe, increased heat radiating area, can effectively reduce the steam temperature that reachs the muffler at last, and then improved noise elimination effect, can adopt the box-type straight-line muffler to match four-stroke engine.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic right-side view of FIG. 1;

FIG. 3 is a schematic top view of FIG. 1;

FIG. 4 is a schematic top view of the ski vehicle;

FIG. 5 is a schematic view of the air intake of the ski vehicle;

FIG. 6 is a schematic view of the position of the exhaust outlet of the ski vehicle.

Detailed Description

The invention will be further explained with reference to the following reference numerals:

in the attached drawing, 1 is a frame, 2 is an engine, 3 is a silencer, 4 is a steering column, 5 is an exhaust pipe, 6 is a shell, 7 is an air inlet, 8 is an air outlet, 9 is an air filter assembly, 10 is a stainless steel heat insulation board, 11 is a connecting pipe, 12 is a hook support lug, and 13 is an oxygen sensor mounting support lug.

Referring to fig. 1-6, a sledge exhaust system comprises a frame, and an engine, a silencer and a steering column which are arranged on the frame, wherein the engine adopts a four-stroke engine, and the silencer adopts a box type straight-line silencer. The exhaust port of the engine is connected with one end of an exhaust pipe, the other end of the exhaust pipe extends forwards to bypass the steering column and then extends backwards to be connected with the air inlet of the silencer, and the exhaust pipe is in a U shape. The air inlet of the engine is connected with an air filter assembly through a pipeline, and the air filter assembly is located between the engine and the silencer and is located right behind the exhaust pipe. And a stainless steel heat insulation plate is arranged on the outer side of the silencer. The exhaust port of the engine and the air inlet of the silencer are respectively provided with a connecting pipe, and the end part of the connecting pipe is provided with a hook lug for fixing the exhaust pipe. And one end of the exhaust pipe adjacent to the engine is provided with an oxygen sensor mounting lug.

The sledge exhaust system further comprises a sledge shell, an air inlet is formed in the front end of the shell, air outlets are formed in the two sides of the rear end of the shell respectively to form an air duct, and the bending portion of the exhaust pipe is located right behind the air inlet.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a sled vehicle exhaust system, includes the frame to and set up engine, muffler, the steering column on the frame, its characterized in that, the one end of blast pipe is connected to the gas vent of engine, the other end of blast pipe extends forward and bypasses the steering column, extends the air inlet of connecting the muffler again backward, forms the blast pipe that is the U-shaped.

2. The ski lift exhaust system of claim 1, wherein the engine is a four-stroke engine and the muffler is a cartridge inline muffler.

3. The ski lift exhaust system of claim 1, further comprising a shell of the ski lift, wherein an air inlet is formed in the front end of the shell, air outlets are formed in two sides of the rear end of the shell, and the bent portion of the exhaust pipe is located right behind the air inlet.

4. The ski lift exhaust system of claim 1 or 3, wherein the air inlet of the engine is connected to an air filter assembly via a pipe, the air filter assembly being located between the engine and the muffler and directly behind the exhaust pipe.

5. The ski lift exhaust system of claim 1, wherein the muffler is provided with a stainless steel insulation panel on the outside.

6. The exhaust system of claim 1, wherein the exhaust port of the engine and the intake port of the muffler are respectively provided with a connecting pipe, and the end of the connecting pipe is provided with a hook lug for fixing the exhaust pipe.

7. The ski lift exhaust system of claim 1, wherein an oxygen sensor mounting lug is provided at an end of the exhaust pipe adjacent the engine.