CN114151182B - Automobile exhaust silencing system - Google Patents

Automobile exhaust silencing system Download PDF

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Publication number
CN114151182B
CN114151182B CN202111288678.0A CN202111288678A CN114151182B CN 114151182 B CN114151182 B CN 114151182B CN 202111288678 A CN202111288678 A CN 202111288678A CN 114151182 B CN114151182 B CN 114151182B
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CN
China
Prior art keywords
assembly
air pipe
hoop
flange
silencer
Prior art date
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Active
Application number
CN202111288678.0A
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Chinese (zh)
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CN114151182A (en
Inventor
秦三元
刘虎
纪辉
张宇翔
张宁
程伟
王元欣
陈纪
吴圣童
张倩茹
沈震宇
陈清华
陈乐乐
陈菲
晏红
陈期高
刘健宇
苑海振
雷冰芬
宋健
吴�灿
杨鑫
黄吉林
赵浩聪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfeng Automobile Co Ltd
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Dongfeng Automobile Co Ltd
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Application filed by Dongfeng Automobile Co Ltd filed Critical Dongfeng Automobile Co Ltd
Priority to CN202111288678.0A priority Critical patent/CN114151182B/en
Publication of CN114151182A publication Critical patent/CN114151182A/en
Application granted granted Critical
Publication of CN114151182B publication Critical patent/CN114151182B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
    • F02D9/06—Exhaust brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2230/00—Combination of silencers and other devices
    • F01N2230/04—Catalytic converters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2230/00—Combination of silencers and other devices
    • F01N2230/06—Spark arresters

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Exhaust Silencers (AREA)

Abstract

The automobile exhaust silencing system comprises a silencer front air pipe assembly, an exhaust brake valve assembly, a silencer rear air pipe assembly and a postprocessor assembly which are sequentially connected, wherein the silencer front air pipe assembly, the exhaust brake valve assembly and the silencer rear air pipe assembly are all arranged on the outer side of a right longitudinal beam, the postprocessor assembly is located below the front cross beam, the silencer front air pipe assembly is connected with an engine exhaust manifold, the upper portion of the silencer front air pipe assembly is installed on the ventral surface of the right longitudinal beam through an upper support assembly, the lower portion of the silencer front air pipe assembly is installed on the ventral surface of the right longitudinal beam through a lower support assembly, the postprocessor assembly is fixed on the lower wing surface of the front cross beam through a left hanging assembly, and the postprocessor assembly is fixed on the lower wing surface of the right longitudinal beam through a right hanging assembly. The design is simple and convenient to arrange, and the damping and noise reduction effects are good.

Description

Automobile exhaust silencing system
Technical Field
The invention relates to the technical field of automobile exhaust systems, in particular to an automobile exhaust silencing system which is mainly suitable for reducing the arrangement difficulty.
Background
In the prior art, a common automobile exhaust silencing system is arranged in a middle or rear manner, an air inlet pipe of a silencer can be conveniently arranged on the inner side of a left longitudinal beam or the inner side of a right longitudinal beam, and the arrangement space is large; for the automobile with the front-mounted exhaust silencing system, due to the influence of a front suspension, a front axle, engine accessories and the like, the arrangement space is small, so that the exhaust silencing system is inconvenient to arrange on the inner side of a left longitudinal beam or the inner side of a right longitudinal beam of the automobile, the arrangement is difficult, and the design structure is complex.
Disclosure of Invention
The invention aims to overcome the defects and problems of difficult arrangement in the prior art and provide an automobile exhaust silencing system with simple and convenient arrangement.
In order to achieve the above purpose, the technical solution of the invention is as follows: the automobile exhaust silencing system comprises a silencer front air pipe assembly, an exhaust brake valve assembly, a silencer rear air pipe assembly and a postprocessor assembly, wherein the silencer front air pipe assembly, the exhaust brake valve assembly and the silencer rear air pipe assembly are all arranged on the outer side of a right longitudinal beam, the postprocessor assembly is located below the front cross beam, one end of the silencer front air pipe assembly is connected with an engine exhaust manifold, the other end of the silencer front air pipe assembly is connected with one end of the exhaust brake valve assembly, the other end of the exhaust brake valve assembly is connected with one end of the silencer rear air pipe assembly, the other end of the silencer rear air pipe assembly is connected with the postprocessor assembly, the upper portion of the silencer front air pipe assembly is mounted on the ventral surface of the right longitudinal beam through an upper bracket assembly, the lower portion of the silencer front air pipe assembly is mounted on the ventral surface of the right longitudinal beam through a lower bracket assembly, the postprocessor assembly is fixed on the lower wing surface of the right longitudinal beam through a left hanging assembly.
The front air pipe assembly of the silencer is connected with an engine exhaust manifold and then is arranged along the upper part of the outer side of the right longitudinal beam to the direction of the front cross beam, then a section is arranged at the fixed point of the upper bracket assembly downwards along the outer side of the right longitudinal beam, and then the front air pipe assembly of the silencer is connected with the rear air pipe assembly of the silencer through an exhaust brake valve assembly.
The front air pipe assembly of the silencer comprises a front air pipe front section, a metal corrugated pipe and a front air pipe rear section, one end of the front air pipe front section is connected with a first flange, the first flange is connected with a flange of an exhaust port of an engine exhaust manifold, the other end of the front air pipe front section is connected with one end of the front air pipe rear section through the metal corrugated pipe, the other end of the front air pipe rear section is connected with a second flange, the second flange is connected with an exhaust brake valve assembly, a first wrapping layer and a second wrapping layer are respectively sleeved at the middle parts of the outer walls of the front air pipe front section and the front air pipe rear section, the part, close to the metal corrugated pipe, of the front air pipe rear section is connected with an upper support assembly, and the part, close to the second flange, of the front air pipe rear section is connected with a lower support assembly.
The upper bracket assembly comprises a hoop, a first L-shaped support, a second L-shaped support and a sleeve, the hoop comprises a hoop body, the hoop body is sleeved on the rear section of a front air inlet pipe, a notch is formed in the hoop body, two sides of the notch are connected with a fixing plate, the vertical part of the first L-shaped support is located between two fixing plates, the vertical part of the first L-shaped support is connected with the fixing plate, a reinforcing rib is connected between the vertical part of the first L-shaped support and the horizontal part of the first L-shaped support, the sleeve is located between the horizontal part of the first L-shaped support and the horizontal part of the second L-shaped support, a fixing bolt sequentially penetrates through the horizontal part of the first L-shaped support, the sleeve and the horizontal part of the second L-shaped support and then is connected with a fixing nut, the outer wall of the sleeve is sleeved with a soft cushion, and the vertical part of the second L-shaped support is connected with the abdominal surface on the right.
The lower support assembly comprises a second hoop, a mounting plate and two second sleeves, the second hoop is sleeved on the rear section of the front air inlet pipe, the second hoop is formed by encircling a first semicircular hoop and a second semicircular hoop which are symmetrically arranged, two second fixed plates are connected between the outer wall of the first semicircular hoop and the mounting plate, a reinforcing plate is connected between the two second fixed plates, the two second sleeves are symmetrically arranged between the mounting plate and the ventral surface of the right longitudinal beam, the second fixed bolts sequentially penetrate through the ventral surfaces of the mounting plate, the second sleeves and the right longitudinal beam and then are connected with the second fixed nuts, and a second soft cushion is sleeved on the outer wall of the second sleeve.
The rear air inlet pipe assembly of the silencer comprises a rear air inlet pipe, one end of the rear air inlet pipe is connected with a third flange, the third flange is connected with an exhaust brake valve assembly, the other end of the rear air inlet pipe is connected with a fourth flange, the fourth flange is connected with a post-processor assembly, and a third wrapping layer is sleeved on the middle of the outer wall of the rear air inlet pipe.
The exhaust brake valve assembly comprises a cylinder body, a valve and a driving execution mechanism, one end of the cylinder body is connected with a second flange through a fifth flange, the other end of the cylinder body is connected with a third flange through a sixth flange, the valve is installed in the cylinder body, and the driving execution mechanism is installed on the cylinder body.
The post-processor assembly comprises a catalytic silencing integrated barrel, an exhaust tail pipe and a spark arrester, one end of the catalytic silencing integrated barrel is connected with one end of a connecting pipe, the other end of the connecting pipe is connected with a seventh flange, the seventh flange is connected with a fourth flange, the other end of the catalytic silencing integrated barrel is connected with one end of the exhaust tail pipe, the other end of the exhaust tail pipe is connected with the spark arrester through a third hoop, the outer wall of the catalytic silencing integrated barrel is fixed on the lower wing surface of the front cross beam through a left hanging assembly, and the outer wall of the catalytic silencing integrated barrel is fixed on the lower wing surface of the right longitudinal beam through a right hanging assembly.
The left side is hung the assembly and is included No. four hoops, a linking bridge and installing support, no. four hoop suit are on the outer wall of catalysis amortization collection bucket, and No. four hoops surround by the third semi-circular hoop, the fourth semi-circular hoop that the symmetry set up and form, a linking bridge is nearly style of calligraphy structure, and a linking bridge includes a diaphragm and a riser that both ends are connected, and the one end that a diaphragm was kept away from to a riser is connected with the arc No. one, and the inner wall of an arc and the outer wall connection of third semi-circular hoop, the installing support is Z style of calligraphy structure, and the installing support includes No. two diaphragms, no. three diaphragms that swash plate and both ends are connected, no. two diaphragms No. three diaphragms, no. two diaphragms that No. two diaphragms are connected with the lower flank of front beam, no. three diaphragms are located directly over a diaphragm, are provided with No. three sleeve pipes between No. three diaphragms and a diaphragm, are provided with No. four sleeves on No. three diaphragms, and No. one opening round pin passes a diaphragm, no. three sleeves, no. four cushions suits are equipped with No. four cushions respectively.
The assembly is hung on the right side and is included No. five hoop, no. two linking bridge and No. five sleeve pipes, no. five hoop suit are on the outer wall of catalysis amortization collecting vessel, and No. five hoop surround by fifth semi-circular hoop, the sixth semi-circular hoop that the symmetry set up and form, no. two linking bridge be nearly style of calligraphy structure, and No. two linking bridge include No. two risers that No. four diaphragms and both ends are connected, and No. two risers are kept away from the one end of No. four diaphragms and are connected with No. two arcs, and the inner wall of No. two arcs and the outer wall connection of fifth semi-circular hoop, be provided with No. five sleeve pipes on No. four diaphragms, no. two split pins pass in proper order behind No. four diaphragms, no. five sleeve pipes, the lower airfoil of right longeron, no. two big gaskets and be connected with No. two slotted nuts, no. five sheathed tube outer wall suit is equipped with No. five cushions.
Compared with the prior art, the invention has the following beneficial effects:
1. in the automobile exhaust silencing system, the front silencer air pipe assembly, the exhaust brake valve assembly and the rear silencer air pipe assembly are arranged on the outer side of the right longitudinal beam, the postprocessor assembly is positioned below the front cross beam, the upper part of the front silencer air pipe assembly is arranged on the ventral surface of the right longitudinal beam through the upper bracket assembly, the lower part of the front silencer air pipe assembly is arranged on the ventral surface of the right longitudinal beam through the lower bracket assembly, the postprocessor assembly is fixed on the lower wing surface of the front cross beam through the left hanging assembly, and the postprocessor assembly is fixed on the lower wing surface of the right longitudinal beam through the right hanging assembly. Therefore, the exhaust silencing system reduces the arrangement difficulty of the exhaust silencing system.
2. In the automobile exhaust silencing system, the front silencer air inlet pipe assembly is connected with the engine exhaust manifold and then is arranged along the upper part of the outer side of the right longitudinal beam to the direction of the front cross beam, then is arranged along the outer side of the right longitudinal beam at the fixing point of the upper bracket assembly, and is connected with the rear silencer air inlet pipe assembly through the exhaust brake valve assembly, and the silencer air inlet pipe assembly is in an L-shaped trend, so that the silencer air inlet pipe assembly is simple and convenient to arrange, and the arrangement difficulty of the exhaust silencing system is further reduced. Therefore, the present invention is simple in arrangement.
3. In the automobile exhaust silencing system, one end of the front section of the front air pipe is connected with a first flange, the first flange is connected with a flange of an exhaust port of an engine exhaust manifold, the other end of the front section of the front air pipe is connected with one end of the rear section of the front air pipe through a metal corrugated pipe, the other end of the rear section of the front air pipe is connected with a second flange, and the second flange is connected with an exhaust brake valve assembly; the middle parts of the outer walls of the front air inlet pipe front section and the front air inlet pipe rear section are respectively sleeved with a first wrapping layer and a second wrapping layer for protecting the front air inlet pipe front section and the front air inlet pipe rear section. Therefore, the invention has the advantages of firm connection, good damping and noise reducing effects, convenient installation and long service life.
4. In the automobile exhaust silencing system, the hoop body is provided with the notch, two sides of the notch are connected with the first fixing plates, the vertical part of the first L-shaped support is positioned between the two first fixing plates, the vertical part of the first L-shaped support is connected with the first fixing plates, the vertical part and the transverse part of the first L-shaped support are connected with the reinforcing ribs, the first sleeve is positioned between the transverse part of the first L-shaped support and the transverse part of the second L-shaped support, the first fixing bolt sequentially penetrates through the transverse part of the first L-shaped support, the first sleeve and the transverse part of the second L-shaped support and then is connected with the first fixing nut, the outer wall of the first sleeve is sleeved with the first cushion, and the upper support assembly with the cushion has high structural strength, simple and convenient installation and disassembly and good supporting effect, has a damping effect in three coordinate directions of X, Y and Z, and can further damp vibration of the exhaust silencing system and vibration brought by a vehicle frame when the vehicle runs; be connected with two No. two fixed plates between the outer wall of No. two hoops and the mounting panel, be connected with the reinforcing plate between two No. two fixed plates, two No. two sleeve pipe symmetries set up between the ventral surface of mounting panel and right longeron, no. two fixing bolt passes the mounting panel in proper order, no. two sleeve pipes, be connected with fixation nut behind the ventral surface of right longeron, no. two sheathed tube outer wall covers are equipped with the cushion No. two, the lower carriage assembly of above-mentioned structure, not only structural strength is high, the installation is simple and convenient with the dismantlement, excellent in support effect, and the lower carriage assembly that has the cushion is at X, Y, the three coordinate direction of Z all has the shock attenuation effect, the vibrations of vibrations and exhaust noise elimination system itself that can further attenuate the engine and bring to and the vibrations that bring through the frame during vehicle operation. Therefore, the invention has the advantages of high structural strength, simple and convenient installation and disassembly, good supporting effect and good damping effect.
5. In the automobile exhaust silencing system, one end of the rear air inlet pipe is connected with the third flange, the third flange is connected with the exhaust brake valve assembly, the other end of the rear air inlet pipe is connected with the fourth flange, the fourth flange is connected with the post-processor assembly, and the middle part of the outer wall of the rear air inlet pipe is sleeved with the third wrapping layer; one end of the cylinder body is connected with the second flange through a fifth flange, the other end of the cylinder body is connected with the third flange through a sixth flange, and the exhaust brake valve assembly with the structure is firmly connected; one end of the catalytic silencing integrated barrel is connected with a seventh flange through a connecting pipe, the seventh flange is connected with a fourth flange, the other end of the catalytic silencing integrated barrel is connected with one end of a tail pipe, the other end of the tail pipe is connected with a spark extinguisher through a third hoop, the outer wall of the catalytic silencing integrated barrel is fixed on the lower wing surface of a front cross beam through a left hanging assembly, the outer wall of the catalytic silencing integrated barrel is fixed on the lower wing surface of a right longitudinal beam through a right hanging assembly, and the postprocessor assembly with the structure is firm in connection and good in silencing effect. Therefore, the invention has the advantages of firm connection, long service life and good noise reduction effect.
6. In the automobile exhaust silencing system, the first connecting support comprises a first transverse plate and a first vertical plate connected with two ends of the first transverse plate, one end of the first vertical plate is connected with the first arc plate, the inner wall of the first arc plate is connected with the outer wall of the fourth hoop, the mounting support comprises an inclined plate and a second transverse plate and a third transverse plate which are connected with two ends of the inclined plate, the second transverse plate is connected with the lower wing surface of the front cross beam, the third transverse plate is positioned right above the first transverse plate, a third sleeve is arranged between the third transverse plate and the first transverse plate, a fourth sleeve is arranged on the third transverse plate, a first split pin sequentially penetrates through the first transverse plate, the third sleeve, the third transverse plate, the fourth sleeve and a first large gasket and then is connected with a first slotted nut, the outer walls of the third sleeve and the fourth sleeve are respectively sleeved with a third cushion and a fourth cushion, the left hanging assembly of the structure has high structural strength, is simple and convenient to mount and dismount and firm to connect, and the left hanging assembly with cushions has a damping effect in three coordinate directions of X, Y and Z, and can effectively damp the exhaust silencing system; no. two linking bridge includes No. four diaphragms and No. two risers of connecting at both ends thereof, no. two riser one end is connected with the arc No. two, the inner wall of No. two arcs and the outer wall connection of No. five hoops, be provided with No. five sleeves on No. four diaphragms, no. two split pins pass No. four diaphragms in proper order, no. five sleeves, the lower airfoil of right longeron, be connected with No. two slotted nuts behind No. two big gaskets, no. five sheathed tube outer wall covers are equipped with No. five cushions, the assembly is hung on the right side of above-mentioned structure, not only structural strength is high, the installation is simple and convenient with the dismantlement, it is firm to connect, and the assembly is hung in X in the right side that has the cushion, Y, the three coordinate direction of Z all has the shock attenuation effect, can effectively attenuate the vibrations of exhaust noise elimination system itself. Therefore, the shock absorber has the advantages of high structural strength, simplicity and convenience in installation and disassembly, firm connection and good shock absorption effect.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic structural view of the front air duct assembly of the muffler of fig. 1.
FIG. 3 is a schematic structural view of the exhaust brake valve assembly of FIG. 1.
Fig. 4 is a schematic view of the rear intake tube assembly of the muffler of fig. 1.
FIG. 5 is a schematic diagram of the structure of the post-processor assembly of FIG. 1.
Fig. 6 is a schematic view of the upper bracket assembly of fig. 1.
Fig. 7 is a schematic structural view of the lower bracket assembly in fig. 1.
FIG. 8 is a schematic view of the left hanger assembly of FIG. 1.
FIG. 9 is a schematic structural view of the right hanger assembly of FIG. 1.
In the figure: the silencer front air pipe assembly 1, the front air pipe front section 11, the metal corrugated pipe 12, the front air pipe rear section 13, the first flange 14, the second flange 15, the first wrapping layer 16, the second wrapping layer 17, the exhaust brake valve assembly 2, the cylinder 21, the valve 22, the driving actuator 23, the fifth flange 24, the sixth flange 25, the silencer rear air pipe assembly 3, the rear air pipe 31, the third flange 32, the fourth flange 33, the third wrapping layer 34, the postprocessor assembly 4, the catalytic silencing integrated barrel 41, the exhaust tail pipe 42, the spark extinguisher 43, the connecting pipe 44, the seventh flange 45, the third hoop 46, the right longitudinal beam 5, the front cross beam 6, the upper bracket assembly 7, the hoop body 71, the notch 72, the first fixing plate 73, the first L-shaped bracket 74, the second L-shaped bracket 75, the reinforcing ribs 76, the first fixing bolts 77 the first cushion 78, the lower bracket assembly 8, the first semicircular hoop 81, the second semicircular hoop 82, the mounting plate 83, the second fixing plate 84, the reinforcing plate 85, the second fixing bolt 86, the second fixing nut 87, the second cushion 88, the left hanging assembly 9, the third semicircular hoop 91, the fourth semicircular hoop 92, the first transverse plate 93, the first vertical plate 94, the first arc-shaped plate 95, the inclined plate 96, the second transverse plate 97, the third transverse plate 98, the first split pin 99, the first large cushion 910, the first slotted nut 911, the third cushion 912, the fourth cushion 913, the right hanging assembly 10, the fifth semicircular hoop 101, the sixth semicircular hoop 102, the fourth transverse plate 103, the second vertical plate 104, the second arc-shaped plate 105, the second split pin 106, the second large cushion 107, the second slotted nut 108, and the fifth cushion 109.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description of the invention.
Referring to fig. 1 to 9, an automobile exhaust silencing system comprises a front silencer air pipe assembly 1, an exhaust brake valve assembly 2, a rear silencer air pipe assembly 3 and a postprocessor assembly 4, wherein the front silencer air pipe assembly 1, the exhaust brake valve assembly 2 and the rear silencer air pipe assembly 3 are all arranged on the outer side of a right longitudinal beam 5, the postprocessor assembly 4 is located below a front cross beam 6, one end of the front silencer air pipe assembly 1 is connected with an engine exhaust manifold, the other end of the front silencer air pipe assembly 1 is connected with one end of the exhaust brake valve assembly 2, the other end of the exhaust brake valve assembly 2 is connected with one end of the rear silencer air pipe assembly 3, the other end of the rear silencer air pipe assembly 3 is connected with the postprocessor assembly 4, the upper portion of the front silencer air pipe assembly 1 is mounted on the ventral surface of the right longitudinal beam 5 through an upper bracket assembly 7, the lower portion of the front silencer air pipe assembly 1 is mounted on the ventral surface of the right longitudinal beam 5 through a lower bracket assembly 8, the postprocessor assembly 4 is fixed on the lower wing surface of the front cross beam 6 through a left hanging assembly 9, and the postprocessor assembly 4 is fixed on the longitudinal beam 5 through the lower wing surface of the right longitudinal beam 5.
The front silencer air pipe assembly 1 is connected with an engine exhaust manifold and then is arranged along the upper part of the outer side of the right longitudinal beam 5 to the direction of the front cross beam 6, then is arranged at the fixed point of the upper bracket assembly 7 downwards along the outer side of the right longitudinal beam 5, and then is connected with the rear silencer air pipe assembly 3 through the exhaust brake valve assembly 2.
The front air pipe assembly 1 of the silencer comprises a front air pipe front section 11, a metal corrugated pipe 12 and a front air pipe rear section 13, one end of the front air pipe front section 11 is connected with a first flange 14, the first flange 14 is connected with a flange of an exhaust port of an engine exhaust manifold, the other end of the front air pipe front section 11 is connected with one end of the front air pipe rear section 13 through the metal corrugated pipe 12, the other end of the front air pipe rear section 13 is connected with a second flange 15, the second flange 15 is connected with an exhaust brake valve assembly 2, a first wrapping layer 16 and a second wrapping layer 17 are respectively sleeved on the middle portions of the outer walls of the front air pipe front section 11 and the front air pipe rear section 13, a portion, close to the metal corrugated pipe 12, of the front air pipe rear section 13 is connected with an upper support assembly 7, and a portion, close to the second flange 15, of the front air pipe rear section 13 is connected with a lower support assembly 8.
Upper bracket assembly 7 includes a hoop, L type support 74, no. two L type supports 75 and a sleeve pipe, a hoop includes hoop body 71, and hoop body 71 suit has seted up breach 72 in the front on intake pipe back end 13, the both sides of breach 72 all are connected with fixed plate 73 No. one, the vertical position of L type support 74 is between two fixed plate 73, and the vertical position of L type support 74 is connected with fixed plate 73 No. one, is connected with strengthening rib 76 between the vertical position of L type support 74 and the horizontal portion of L type support 74, a sleeve pipe is located between the horizontal portion of L type support 74 and the horizontal portion of No. two L type supports 75, and a fixing bolt 77 is connected with a fixation nut after passing the horizontal portion of L type support 74, a sleeve pipe, the horizontal portion of No. two L type supports 75 in proper order, no. one the outer wall cover of a cushion 78, the vertical portion of No. two L type supports 75 and the ventral surface connection of the longeron of right side 5.
Lower carriage assembly 8 includes No. two hoops, mounting panel 83 and No. two sleeves, no. two hoop suits are in the front on intake pipe back end 13, and No. two hoops surround by first semi-circular hoop 81, the semi-circular hoop 82 of second that the symmetry set up and form, be connected with No. two fixed plates 84 between the outer wall of first semi-circular hoop 81 and the mounting panel 83, be connected with reinforcing plate 85 between two fixed plates 84, two No. two sleeve symmetry sets up between the ventral surface of mounting panel 83 and right longeron 5, and No. two fixing bolt 86 is connected with No. two fixation nut 87 after passing mounting panel 83, no. two sleeves, right longeron 5's ventral surface in proper order, no. two sheathed tube outer wall covers are equipped with No. two cushion 88.
The rear muffler intake pipe assembly 3 comprises a rear intake pipe 31, one end of the rear intake pipe 31 is connected with a third flange 32, the third flange 32 is connected with the exhaust brake valve assembly 2, the other end of the rear intake pipe 31 is connected with a fourth flange 33, the fourth flange 33 is connected with the post-processor assembly 4, and a third wrapping layer 34 is sleeved on the middle portion of the outer wall of the rear intake pipe 31.
The exhaust brake valve assembly 2 comprises a cylinder body 21, a valve 22 and a driving execution mechanism 23, one end of the cylinder body 21 is connected with a second flange 15 through a fifth flange 24, the other end of the cylinder body 21 is connected with a third flange 32 through a sixth flange 25, the valve 22 is installed in the cylinder body 21, and the driving execution mechanism 23 is installed on the cylinder body 21.
The post-processor assembly 4 comprises a catalytic silencing integrated barrel 41, a tail pipe 42 and a spark arrester 43, one end of the catalytic silencing integrated barrel 41 is connected with one end of a connecting pipe 44, the other end of the connecting pipe 44 is connected with a seventh flange 45, the seventh flange 45 is connected with a fourth flange 33, the other end of the catalytic silencing integrated barrel 41 is connected with one end of the tail pipe 42, the other end of the tail pipe 42 is connected with the spark arrester 43 through a third hoop 46, the outer wall of the catalytic silencing integrated barrel 41 is fixed on the lower wing surface of the front cross beam 6 through a left hanging assembly 9, and the outer wall of the catalytic silencing integrated barrel 41 is fixed on the lower wing surface of the right longitudinal beam 5 through a right hanging assembly 10.
The left hanging assembly 9 comprises a fourth hoop, a first connecting support and a mounting support, the fourth hoop is sleeved on the outer wall of the catalytic silencing integrated barrel 41, the fourth hoop is formed by surrounding a third semi-circular hoop 91 and a fourth semi-circular hoop 92 which are symmetrically arranged, the first connecting support is of a herringbone structure, the first connecting support comprises a first transverse plate 93 and a first vertical plate 94 connected with the first transverse plate 93 at two ends, one end, far away from the first transverse plate 93, of the first vertical plate 94 is connected with a first arc-shaped plate 95, the inner wall of the first arc-shaped plate 95 is connected with the outer wall of the third semi-circular hoop 91, the mounting support is of a Z-shaped structure, the installing support includes No. two diaphragm 97, no. three diaphragm 98 that swash plate 96 and both ends are connected, no. two diaphragm 97 is connected with the lower flank of front beam 6, no. three diaphragm 98 is located No. one diaphragm 93 directly over, is provided with No. three sleeve pipes between No. three diaphragm 98 and the diaphragm 93, is provided with No. four sleeve pipes on No. three diaphragm 98, and No. one split pin 99 passes behind diaphragm 93, no. three sleeve pipes, no. three diaphragm 98, no. four sleeve pipes, a big gasket 910 in proper order and is connected with a slotted nut 911, no. three sleeve pipes, no. four sheathed tube outer wall are equipped with No. three cushion 912, no. four cushion 913 respectively.
The right hanging assembly 10 comprises a fifth hoop, a second connecting support and a fifth sleeve, the fifth hoop is sleeved on the outer wall of the catalytic silencing integrated barrel 41, the fifth hoop is formed by encircling a fifth semicircular hoop 101 and a sixth semicircular hoop 102 which are symmetrically arranged, the second connecting support is of a structure shaped like a Chinese character 'ji', the second connecting support comprises a fourth transverse plate 103 and a second vertical plate 104 connected with two ends of the fourth transverse plate 103, one end, far away from the fourth transverse plate 103, of the second vertical plate 104 is connected with a second arc-shaped plate 105, the inner wall of the second arc-shaped plate 105 is connected with the outer wall of the fifth semicircular hoop 101, the fourth transverse plate 103 is provided with the fifth sleeve, a second split pin 106 sequentially penetrates through the fourth transverse plate 103, the fifth sleeve, the lower wing surface of the right longitudinal beam 5 and a second large gasket 107 and then is connected with a second slotted nut 108, and the outer wall of the fifth sleeve is sleeved with a fifth cushion 109.
The principle of the invention is illustrated as follows:
when the exhaust silencing system is provided with the exhaust brake valve assembly, the adverse effect of system vibration is increased because of certain vibration during the work of the exhaust brake valve assembly, in addition, the engine can transmit larger vibration to the exhaust silencing system during the work, and certain vibration also exists in the exhaust silencing system during the work, so parts in the exhaust silencing system are easy to break, the work is unreliable, the performance of the whole vehicle is influenced, and the reliability of the whole vehicle is reduced.
The exhaust brake valve assembly has the functions of: when the valve does not work, the valve is in an opening state, namely a normally open state, and plays a role of an exhaust channel at the moment; when the brake valve works, the valve is closed, and a certain vehicle braking effect is achieved.
The exhaust silencing technology principle of the design is as follows: the tail gas of the engine is discharged from the exhaust manifold assembly, enters from the front silencer air inlet pipe assembly, sequentially passes through the front silencer air inlet pipe, the exhaust brake valve assembly and the rear silencer air inlet pipe assembly, enters the post-processor assembly, reaches the emission standard of the state six through a series of chemical reactions and silencing measures in the post-processor assembly, and is finally discharged.
The installation method of the automobile exhaust silencing system on the whole automobile is designed as follows: the post-processor assembly is installed and fixed through the left hanging assembly and the right hanging assembly, the exhaust brake valve assembly, the front silencer air inlet pipe assembly and the rear silencer air inlet pipe assembly which are separately installed are connected, bolts are not tightened, then the upper support assembly and the lower support assembly are installed, and finally the connecting bolts of the rear silencer air inlet pipe assembly and the post-processor assembly, the connecting bolts at two ends of the exhaust brake valve assembly, the connecting bolts of the front silencer air inlet pipe assembly and an engine exhaust manifold, the installing bolts of the upper support assembly and the installing bolts of the lower support assembly are tightened in sequence.
The design adopts a structure convenient to mount and a reasonable arrangement scheme, particularly, the silencer air inlet pipe assembly is arranged at the outer side of the right longitudinal beam, the postprocessor assembly is arranged below the front cross beam, and a reasonable fixing structure is adopted, so that the fixing structure not only plays a role in fixing, but also plays a role in damping vibration and isolating vibration, the reliability of the system is ensured, and the reliability of the whole automobile is further ensured; in addition, the design has short exhaust pipeline, simple structure and low cost. Therefore, the design has the advantages of ingenious arrangement, simple and reliable structure, low cost and easy assembly.
The embodiment is as follows:
referring to fig. 1, an automobile exhaust silencing system comprises a silencer front air pipe assembly 1, an exhaust brake valve assembly 2, a silencer rear air pipe assembly 3 and an aftertreatment device assembly 4, wherein the silencer front air pipe assembly 1, the exhaust brake valve assembly 2 and the silencer rear air pipe assembly 3 are all arranged on the outer side of a right longitudinal beam 5, the aftertreatment device assembly 4 is located below a front cross beam 6, one end of the silencer front air pipe assembly 1 is connected with an engine exhaust manifold, the other end of the silencer front air pipe assembly 1 is connected with one end of the exhaust brake valve assembly 2, the other end of the exhaust brake valve assembly 2 is connected with one end of the silencer rear air pipe assembly 3, the other end of the silencer rear air pipe assembly 3 is connected with the aftertreatment device assembly 4, the upper portion of the silencer front air pipe assembly 1 is mounted on the ventral surface of the right longitudinal beam 5 through an upper bracket assembly 7, the lower portion of the silencer front air pipe assembly 1 is mounted on the ventral surface of the right longitudinal beam 5 through a lower bracket assembly 8, the aftertreatment device assembly 4 is fixed on the lower wing surface of the right longitudinal beam 5 through a left hanging assembly 9; the front muffler air inlet pipe assembly 1 is connected with an engine exhaust manifold, is arranged along the upper part of the outer side of the right longitudinal beam 5 to the direction of the front cross beam 6 for a section, is arranged along the outer side of the right longitudinal beam 5 at the fixing point of the upper bracket assembly 7 for a section, and is connected with the rear muffler air inlet pipe assembly 3 through the exhaust brake valve assembly 2 arranged below the outer side of the right longitudinal beam 5.
Referring to fig. 2, the front air pipe assembly 1 of the muffler comprises a front air pipe front section 11, a metal corrugated pipe 12 and a front air pipe rear section 13, wherein one end of the front air pipe front section 11 is connected with a first flange 14, the first flange 14 is connected with a flange of an exhaust port of an engine exhaust manifold, the other end of the front air pipe front section 11 is connected with one end of the front air pipe rear section 13 through the metal corrugated pipe 12, the other end of the front air pipe rear section 13 is connected with a second flange 15, the second flange 15 is connected with an exhaust brake valve assembly 2, a first wrapping layer 16 and a second wrapping layer 17 are respectively sleeved on the outer walls of the front air pipe front section 11 and the front air pipe rear section 13, a part close to the metal corrugated pipe 12 is connected with an upper bracket assembly 7, and a part close to the second flange 15 on the front air pipe rear section 13 is connected with a lower bracket assembly 8. A sealing gasket is arranged between the first flange 14 and a flange of an exhaust port of an engine exhaust manifold, three through holes are formed in the first flange 14, and after the two flanges are in butt joint, bolts penetrate through the through holes of the two flanges and then are fixedly connected with the two flanges through nuts. And a sealing gasket is arranged between the second flange 15 and the flange of the exhaust brake valve assembly 2.
Referring to fig. 6, the upper bracket assembly 7 includes a hoop, a first L-shaped bracket 74, a second L-shaped bracket 75 and a sleeve, the hoop includes a hoop body 71, the hoop body 71 is sleeved on the front intake pipe rear section 13, a notch 72 is formed in the hoop body 71, both sides of the notch 72 are connected with a first fixing plate 73, a vertical portion of the first L-shaped bracket 74 is located between the two first fixing plates 73, a vertical portion of the first L-shaped bracket 74 is connected with the first fixing plate 73, a reinforcing rib 76 is connected between the vertical portion of the first L-shaped bracket 74 and a horizontal portion of the first L-shaped bracket 74, the sleeve is located between the horizontal portion of the first L-shaped bracket 74 and the horizontal portion of the second L-shaped bracket 75, a first fixing bolt 77 sequentially passes through the horizontal portion of the first L-shaped bracket 74, the first sleeve and the horizontal portion of the second L-shaped bracket 75 and then is connected with a first fixing nut, the outer wall of the first sleeve is sleeved with the first cushion 78, and the vertical portion of the second L-shaped bracket 75 is connected with the web 5. The fixing point of the upper bracket assembly 7 is arranged close to the metal corrugated pipe 12, so that the best supporting effect can be achieved.
Referring to fig. 7, the lower bracket assembly 8 includes a second hoop, a mounting plate 83 and two second sleeves, the second hoop is sleeved on the front intake pipe rear section 13, the second hoop is formed by surrounding a first semicircular hoop 81 and a second semicircular hoop 82 which are symmetrically arranged, two second fixing plates 84 are connected between the outer wall of the first semicircular hoop 81 and the mounting plate 83, a reinforcing plate 85 is connected between the two second fixing plates 84, the two second sleeves are symmetrically arranged between the mounting plate 83 and the ventral surface of the right longitudinal beam 5, a second fixing bolt 86 sequentially penetrates through the mounting plate 83, the second sleeves and the ventral surface of the right longitudinal beam 5 and then is connected with a second fixing nut 87, and a second cushion 88 is sleeved on the outer wall of the second sleeve. The fixing point of the lower bracket assembly 8 is arranged close to the exhaust brake valve assembly 2, so that the best supporting effect can be achieved.
Referring to fig. 4, the muffler rear intake pipe assembly 3 includes a rear intake pipe 31, one end of the rear intake pipe 31 is connected with a third flange 32, the third flange 32 is connected with the exhaust brake valve assembly 2, the other end of the rear intake pipe 31 is connected with a fourth flange 33, the fourth flange 33 is connected with the postprocessor assembly 4, and a third wrapping layer 34 is sleeved on the middle portion of the outer wall of the rear intake pipe 31. And a sealing gasket is arranged between the fourth flange 33 and the seventh flange 45 of the post-processor assembly 4.
Referring to fig. 3, the exhaust brake valve assembly 2 includes a cylinder 21, a valve 22 and a driving actuator 23, wherein one end of the cylinder 21 is connected to a second flange 15 through a fifth flange 24, the other end of the cylinder 21 is connected to a third flange 32 through a sixth flange 25, the valve 22 is installed in the cylinder 21, and the driving actuator 23 is installed on the cylinder 21. A sealing gasket is arranged between the fifth flange 24 and the second flange 15, a sealing gasket is arranged between the sixth flange 25 and the third flange 32, four through holes are formed in the fifth flange 24 and the sixth flange 25, and the two pairs of flanges are fixedly connected through bolts and nuts.
Referring to fig. 5, the post-processor assembly 4 includes a catalytic silencing integrated barrel 41 (for performing chemical reaction and silencing, and meeting the national emission requirements and noise reduction requirements), a tail pipe 42 and a spark arrester 43 (for extinguishing the spark of the engine exhaust and discharging the spark to the atmosphere), one end of the catalytic silencing integrated barrel 41 is connected with one end of a connecting pipe 44 (an intake inlet pipe), the other end of the connecting pipe 44 is connected with a seventh flange 45, the seventh flange 45 is connected with a fourth flange 33, the other end of the catalytic silencing integrated barrel 41 is connected with one end of the tail pipe 42, the other end of the tail pipe 42 is connected with the spark arrester 43 through a third hoop 46, the outer wall of the catalytic silencing integrated barrel 41 is fixed on the lower wing surface of the front cross beam 6 through a left hanging assembly 9, and the outer wall of the catalytic silencing integrated barrel 41 is fixed on the lower wing surface of the right side beam 5 through a right hanging assembly 10. The seventh flange 45 is provided with four through holes, and is connected and fixed in pairs through bolts and nuts after being butted with the fourth flange 33.
Referring to fig. 8, the left hanging assembly 9 comprises a fourth hoop, a first connecting support and a mounting support, the fourth hoop is sleeved on the outer wall of the catalytic silencing integration barrel 41, the fourth hoop is formed by enclosing a third semicircular hoop 91 and a fourth semicircular hoop 92 which are symmetrically arranged, the first connecting support is of a n-shaped structure, the first connecting support comprises a first transverse plate 93 and a first vertical plate 94 connected with two ends of the first transverse plate 93, one end, away from the first transverse plate 93, of the first vertical plate 94 is connected with a first arc-shaped plate 95, the inner wall of the first arc-shaped plate 95 is connected with the outer wall of the third semicircular hoop 91, the mounting support is of a Z-shaped structure, the mounting support comprises a second transverse plate 97 and a third transverse plate 98 which are connected with two ends of a sloping plate 96, the second transverse plate 97 is connected with the lower wing surface of the front cross beam 6, the third transverse plate 98 is positioned right above the first transverse plate 93, a third sleeve is arranged between the third transverse plate 98 and the first transverse plate 93, a fourth transverse plate 912 is arranged on the third transverse plate 98, a third sleeve 912 is arranged on the first sleeve, a third sleeve 912, a third sleeve is sleeved with a fourth sleeve and a fourth sleeve, a fourth sleeve gasket 910, and a fourth sleeve gasket 910, a fourth sleeve.
Referring to fig. 9, the right hanging assembly 10 includes a fifth hoop, a second connecting bracket and a fifth sleeve, the fifth hoop is sleeved on the outer wall of the catalytic silencing integrated barrel 41, the fifth hoop is formed by surrounding a fifth semicircular hoop 101 and a sixth semicircular hoop 102 which are symmetrically arranged, the second connecting bracket is of a structure like a Chinese character 'ji', the second connecting bracket includes a fourth transverse plate 103 and a second vertical plate 104 connected at two ends thereof, one end of the second vertical plate 104 away from the fourth transverse plate 103 is connected with a second arc-shaped plate 105, the inner wall of the second arc-shaped plate 105 is connected with the outer wall of the fifth semicircular hoop 101, the fourth transverse plate 103 is provided with the fifth sleeve, a second cotter pin 106 sequentially penetrates through the fourth transverse plate 103, the fifth sleeve, the lower wing surface of the right longitudinal beam 5 and a second large gasket 107 and then is connected with a second slotted nut 108, and the outer wall of the fifth sleeve is sleeved with a fifth cushion 109.

Claims (6)

1. An automobile exhaust silencing system is characterized by comprising a silencer front air pipe assembly (1), an exhaust brake valve assembly (2), a silencer rear air pipe assembly (3) and a postprocessor assembly (4), the front muffler air pipe assembly (1), the exhaust brake valve assembly (2) and the rear muffler air pipe assembly (3) are arranged on the outer side of the right longitudinal beam (5), the post-processor assembly (4) is positioned below the front cross beam (6), one end of the muffler front air pipe assembly (1) is connected with an engine exhaust manifold, the other end of the muffler front air pipe assembly (1) is connected with one end of the exhaust brake valve assembly (2), the other end of the exhaust brake valve assembly (2) is connected with one end of the muffler rear air pipe assembly (3), the other end of the muffler rear air pipe assembly (3) is connected with the post-processor assembly (4), the upper part of the front air pipe assembly (1) of the silencer is arranged on the ventral surface of the right longitudinal beam (5) through an upper bracket assembly (7), the lower part of the front air pipe assembly (1) of the silencer is arranged on the ventral surface of the right longitudinal beam (5) through a lower bracket assembly (8), the post-processor assembly (4) is fixed on the lower wing surface of the front cross beam (6) through a left hanging assembly (9), and the post-processor assembly (4) is fixed on the lower wing surface of the right longitudinal beam (5) through a right hanging assembly (10);
the front air pipe assembly (1) of the silencer is connected with an engine exhaust manifold, and then is arranged along the upper part of the outer side of the right longitudinal beam (5) to the direction of the front cross beam (6) for a section, then is arranged along the outer side of the right longitudinal beam (5) at the fixing point of the upper bracket assembly (7) for a section, and then is connected with the rear air pipe assembly (3) of the silencer through the exhaust brake valve assembly (2);
the front air pipe assembly (1) of the silencer comprises a front air pipe front section (11), a metal corrugated pipe (12) and a front air pipe rear section (13), one end of the front air pipe front section (11) is connected with a first flange (14), the first flange (14) is connected with a flange of an exhaust port of an engine exhaust manifold, the other end of the front air pipe front section (11) is connected with one end of the front air pipe rear section (13) through the metal corrugated pipe (12), the other end of the front air pipe rear section (13) is connected with a second flange (15), the second flange (15) is connected with an exhaust brake valve assembly (2), the middle parts of the outer walls of the front air pipe front section (11) and the front air pipe rear section (13) are respectively sleeved with a first wrapping layer (16) and a second wrapping layer (17), an upper bracket assembly (7) is connected to a position, close to the metal corrugated pipe (12), of the front air pipe rear section (13) is connected to a lower bracket assembly (8) which is connected to a position, close to the second flange (15);
the upper support assembly (7) comprises a first hoop, a first L-shaped support (74), a second L-shaped support (75) and a first sleeve, the first hoop comprises a hoop body (71), the hoop body (71) is sleeved on a rear section (13) of a front air inlet pipe, a notch (72) is formed in the hoop body (71), two sides of the notch (72) are connected with a first fixing plate (73), a vertical part of the first L-shaped support (74) is located between the two first fixing plates (73), a vertical part of the first L-shaped support (74) is connected with the first fixing plate (73), a reinforcing rib (76) is connected between the vertical part of the first L-shaped support (74) and a transverse part of the first L-shaped support (74), the first sleeve is located between the transverse part of the first L-shaped support (74) and the transverse part of the second L-shaped support (75), a first fixing bolt (77) sequentially penetrates through the transverse part of the first L-shaped support (74), the first sleeve, the second L-shaped support (75) and a transverse part of the first L-shaped support (75), and a right side wall of the first L-shaped support (75) are connected with a nut (78), and a vertical side wall of the first L-shaped support (75) is sleeved with a cushion;
lower carriage assembly (8) are including No. two hoops, mounting panel (83) and No. two sleeves, no. two hoop suits are on intake pipe back end (13) in the front, and No. two hoops surround by first semi-circular hoop (81), the semi-circular hoop (82) of second that the symmetry set up and form, be connected with No. two fixed plates (84) between the outer wall of first semi-circular hoop (81) and mounting panel (83), be connected with reinforcing plate (85) between two fixed plates (84), two sleeve symmetry sets up between the ventral surface of mounting panel (83) and right longeron (5), and No. two fixing bolt (86) pass behind the ventral surface of mounting panel (83), no. two sleeves, right longeron (5) in proper order and are connected with No. two fixation nut (87), no. two sheathed tube outer wall suits are equipped with No. two cushion (88).
2. The automotive exhaust muffler system according to claim 1, wherein: the rear air inlet pipe assembly (3) of the silencer comprises a rear air inlet pipe (31), one end of the rear air inlet pipe (31) is connected with a third flange (32), the third flange (32) is connected with an exhaust brake valve assembly (2), the other end of the rear air inlet pipe (31) is connected with a fourth flange (33), the fourth flange (33) is connected with a post-processor assembly (4), and a third wrapping layer (34) is sleeved in the middle of the outer wall of the rear air inlet pipe (31).
3. The automotive exhaust muffler system according to claim 2, wherein: exhaust brake valve assembly (2) include barrel (21), valve (22) and drive actuating mechanism (23), the one end of barrel (21) is passed through No. five flange (24) and is connected with No. two flanges (15), and the other end of barrel (21) is passed through No. six flange (25) and is connected with No. three flange (32), install in barrel (21) valve (22), drive actuating mechanism (23) are installed on barrel (21).
4. The automotive exhaust muffler system according to claim 2, wherein: the post-processor assembly (4) comprises a catalytic silencing integrated barrel (41), a tail pipe (42) and a spark arrester (43), one end of the catalytic silencing integrated barrel (41) is connected with one end of a connecting pipe (44), the other end of the connecting pipe (44) is connected with a seventh flange (45), the seventh flange (45) is connected with a fourth flange (33), the other end of the catalytic silencing integrated barrel (41) is connected with one end of the tail pipe (42), the other end of the tail pipe (42) is connected with the spark arrester (43) through a third hoop (46), the outer wall of the catalytic silencing integrated barrel (41) is fixed on the lower wing surface of the front cross beam (6) through a left hanging assembly (9), and the outer wall of the catalytic silencing integrated barrel (41) is fixed on the lower wing surface of the right longitudinal beam (5) through a right hanging assembly (10).
5. The automotive exhaust muffler system according to claim 4, wherein: the left hanging assembly (9) comprises a fourth hoop, a first connecting support and a mounting support, the fourth hoop is sleeved on the outer wall of the catalytic silencing integration barrel (41), the fourth hoop is formed by surrounding a third semicircular hoop (91) and a fourth semicircular hoop (92) which are symmetrically arranged, the first connecting support is of a structure shaped like a Chinese character 'ji', the first connecting support comprises a first transverse plate (93) and a first vertical plate (94) connected with the first transverse plate (93), one end, far away from the first transverse plate (93), of the first vertical plate (94) is connected with a first arc-shaped plate (95), the inner wall of the first arc-shaped plate (95) is connected with the outer wall of the third semicircular hoop (91), and the mounting support is of a structure shaped like a Chinese character 'Z', the installing support includes No. two diaphragm (97), no. three diaphragm (98) that swash plate (96) and both ends are connected, no. two diaphragm (97) are connected with the lower flank of front beam (6), no. three diaphragm (98) are located diaphragm (93) directly over, are provided with No. three sleeves between No. three diaphragm (98) and diaphragm (93), are provided with No. four sleeves on No. three diaphragm (98), and split pin (99) pass behind diaphragm (93), no. three sleeves, no. three diaphragm (98), no. four sleeves, a big gasket (910) in proper order and are connected with a slotted nut (911), no. three sleeves, no. four sheathed tube outer walls are equipped with No. three cushion (912) respectively, A fourth cushion (913).
6. The automotive exhaust muffler system according to claim 4, wherein: the right hanging assembly (10) comprises a fifth hoop, a second connecting support and a fifth sleeve, the fifth hoop is sleeved on the outer wall of the catalytic silencing integrated barrel (41), the fifth hoop is formed by encircling a fifth semicircular hoop (101) and a sixth semicircular hoop (102) which are symmetrically arranged, the second connecting support is of a structure shaped like a Chinese character 'ji', the second connecting support comprises a fourth transverse plate (103) and a second vertical plate (104) connected with two ends of the fourth transverse plate (103), one end, far away from the fourth transverse plate (103), of the second vertical plate (104) is connected with a second arc-shaped plate (105), the inner wall of the second arc-shaped plate (105) is connected with the outer wall of the fifth semicircular hoop (101), the fourth transverse plate (103) is provided with the fifth sleeve, a second opening pin (106) sequentially penetrates through the fourth transverse plate (103), the fifth sleeve, the lower wing surface of the right longitudinal beam (5) and a second large gasket (107) and then is connected with a second slotted nut (108), and the outer wall of the fifth sleeve is sleeved with a fifth cushion (109).
CN202111288678.0A 2021-11-02 2021-11-02 Automobile exhaust silencing system Active CN114151182B (en)

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JPH06286642A (en) * 1993-04-02 1994-10-11 Honda Motor Co Ltd Rear part car body structure of vehicle
CN202896282U (en) * 2012-11-16 2013-04-24 东风汽车公司 Double cushion damping device
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