CN2702058Y

CN2702058Y - Sound-deadening purifier for motor vehicle

Info

Publication number: CN2702058Y
Application number: CN 03240875
Authority: CN
Inventors: 董曙光
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-18
Filing date: 2003-03-18
Publication date: 2005-05-25
Anticipated expiration: 2013-03-18

Abstract

The utility model provides a sound-deadening purifier of a vehicle, comprising a tubular shell, an admission pipe and an exhaust pipe. The utility model is characterized in that the inner chamber of the shell of the sound-deadening purifier is divided into a first stage oscillating cavity, a second stage oscillating cavity, a shrinking and expanding cavity and an oscillating exhausting cavity by a dividing panel. Filters are arranged in the oscillating cavity and the oscillating exhausting cavity, and the filters are communicated by the admission pipe, a branch pipe and a honeycomb duct. A rotational flow expanding pressing structure is adopted by the technique, the utility model is provided with obvious cooling, purifying and noise reducing effects, and simultaneously sound-deadening purifier of the vehicle can save energy and increase the power of the vehicle. A light metal plate is allocated to be served as a filtering plate to act assisting reducing action, and the residua harmful gas of CO and HC can be eliminated. The cost of the product is low.

Description

Motor vehicle muffler purifier

One, technical field

The utility model relates to the motor car engine auxiliary device, specifically belongs to a kind of silencing and purifying device of automotive vehicle.

Two, background technique

Environmental pollution problem has caused the common concern of countries in the world.Become topmost a kind of environomental pollution source in the modern city by traffic noise and exhaust emissions that various Motor Vehicle produced.Therefore the noise and the exhaust emissions of controller motor-car have become important subject in the environmental improvement.Noise and exhaust emissions also become an important quality index weighing the Motor Vehicle product, and directly have influence on the competitiveness of product in market.

Reduce Motor Vehicle noise and exhaust emissions several different methods is arranged, the method of less expensive is not do under the situation of big change not changing engine performance and vent systems, take some measures and reduce pollution, wherein main, the most effective, the simplest is to adopt silencing purifier.

Silencing apparatus is the requisite parts of Motor Vehicle.Be in order to subdue the exhaust sound of Motor Vehicle, so silencing apparatus by name at the beginning.Along with modern technologies development and environmental protection requirement, the Motor Vehicle silencing apparatus is not only for mute, and must have and can regulate different component intake and exhaust performances, reaches the effect to tail gas clean-up.The silencing apparatus that uses has now: common silencing apparatus, multitube structure explosion-proof type silencing apparatus, multi-section serial, parallel silencing apparatus, purifying muffler and various for subduing the equipped catalytic cleaner of pollution emission, the magnetic purifying muffler, multiple products such as infrared rays purifying muffler, but in application, have following several respects problem.

(1) common silencing apparatus has only the reduction noise contributions, but does not have catharsis, and exhaust emissions exceeds standard, and because noise reduction simple in structure is poor, and decreases because of resistance and to have reduced power performance greatly significantly;

(2) the explosion-proof type silencing apparatus is extraordinary plain edition silencing apparatus, have noise elimination effect preferably and heat dispersion, but purifying property is poor, and it is big that more common silencing apparatus is decreased in resistance, and also big to power performance influence, cost is higher;

(3) multi-section serial, parallel silencing apparatus have good noise reduction, and the tail gas pollution of subduing effect is also arranged, but do not reach purification standard, energy consumption height, cost height;

(4) purifying muffler is a kind of silencing apparatus that loads chemical substance, significant purifying effect is arranged but effectively to purify the phase extremely short, the noise elimination weak effect, and resistance is decreased big, and the energy consumption height has a strong impact on power performance and increase machine and decreases, and the back of losing efficacy produces again pollutes the cost height;

(5) various catalytic cleaners, though the purifying effect to tail gas in the shorter application phase is remarkable, but coupling requirement condition height, promptly require vehicle operating condition functional, Carburetor must be changed into EFI and high standard unleaded gas, and the assembly fee extra-high-speed, transform assembly fee preferably and use up to 3000 yuan-8000 yuan.And the bigger problem that exists is that resistance is decreased greatly, has a strong impact on power performance and increases resistance and decrease, and noise reduction is poor; Acceptable life is short, and the back of losing efficacy produces severe contamination;

(6) magnetic purifier and infrared rays purifier, effective life, is short, and performance is very unstable, and noise reduction is poor, and the expense height is a kind of very inapplicable product;

Above-mentioned domestic and international silencing apparatus, purifier can only be to the gasoline car aseptics, but also do not have a kind of product of well subduing diesel-oil vehicle and miscella car in application.

The purpose of this utility model is to provide a kind of and can not only pollutes and exhaust emissions by mute, and can reduce oil consumption and improve the Motor Vehicle power performance, gasoline car, diesel-oil vehicle and miscella car all there is the noise elimination catharsis, combination property is better than the motor vehicle muffler purifier of domestic and foreign current, and product cost is low, easily applies.

Three, model utility content

The utility model is on the design principle of common silencing apparatus, by the internal structure of optimum organization silencing apparatus, and takes into account and eliminates gas flow and produce new noise and vapour lock, and the reduction power loss reaches the noise elimination effect.Utilize the gas dynamics principle simultaneously, make the inner high-speed rotational that produces of silencing apparatus, the motor available gas is fully burnt, and be equipped with light metal magnesium as oxygenant, (CO HC), reaches the tail gas clean-up effect to eliminate remaining harmful gas.

A kind of motor vehicle muffler purifier that the utility model provides, comprise tubular shell, suction tude and outlet pipe, it is characterized in that described silencing purifier housing inner chamber by demarcation strip be separated into one-level vibration chamber, secondary vibration chamber, expansion cavity and vibration exhaust cavity contract, in one-level vibration chamber, secondary vibration chamber and vibration exhaust cavity, to vertical the wave filter that sheet metal with holes is formed is set, and vibrate chamber, secondary vibration chamber, contract expansion cavity and the exhaust cavity that vibrates of one-level is connected with suction tude, ram's horns and honeycomb duct with housing shaft.Owing to present technique employing eddy flow expansion compression structure, have significant cooling, purification and mute effect, simultaneously can energy-conservation and increase Motor Vehicle power.

Compared with prior art the utlity model has good performance and useful effect.The physics transformant high-efficiency environment friendly silencing purifier that the utility model is made up of the common metal structure.Its principle is to form high-speed rotational by resonance, expansion after the gas of engine emission enters silencing apparatus, produce negative pressure suction effect, again through secondary eddy flow expansion compression and regulating action, make air-flow in silencing apparatus, produce reciprocating vibration, greatly having overcome system's resistance decreases, reached different component intake and exhaust and regulated automatically, and then forcibly made gas reach abundant burning and subdue disposal of pollutants.And be equipped with light metal magnesium as oxygenant, (CO HC), reaches the tail gas clean-up effect to eliminate remaining harmful gas.

Performance index are after testing: noise figure:＜70db (A); Purification value: CO＜0.5%; HC＜150 (ppm); Smoke intensity value: (FSN)＜2.0.

Technique effect: 1, have the effect of the former car power performance of raising; 2, have and be suitable for subduing gasoline, the dirty emission performance of diesel oil, miscella motorcycle tail gas and noise; 3, fuel-economizing 5-12%; 4, Acceptable life is more than 100,000 kilometers; 5, there are not radiation and pollution again; 6, cost is low.

Four, description of drawings

Accompanying drawing 1 is a kind of silencing purifier planing surface of the utility model schematic representation.

Among the figure: 1 shell, 2,3,4 demarcation strips, 5 one-levels vibrations chamber, 6 secondarys vibration chamber, 7 expansion cavities that contract, 8 vibration exhaust cavitys, 9,10 suction tude, 11 outlet pipes, 12,13 ram's hornss, 14,15,16 honeycomb ducts, 17,18,19 wave filter, 20 reducing and expansion are dehisced, 21 splitting rings.

Five, mode of execution

The contrast accompanying drawing further specifies the utility model.A kind of motor vehicle muffler purifier that the utility model provides, comprise tubular shell (1), suction tude (9) and outlet pipe (11), it is characterized in that described suppressor case (1) inner chamber is by demarcation strip (2,3,4) be separated into one-level vibration chamber (5), secondary vibration chamber (6), expansion cavity (7) and vibration exhaust cavity (8) contract, in one-level vibration chamber (5), in the secondary vibration chamber (6) and the exhaust cavity (8) that vibrates with the axially vertical wave filter (17 that is provided with of housing (1), 18,19), and with suction tude (9,10), ram's horns (12,13), honeycomb duct (14,15,16) and outlet pipe (11) pass wave filter, and with the one-level chamber (5) that vibrates, secondary vibration chamber (6), contract expansion cavity (7) and the vibration exhaust cavity (8) be connected.

Described wave filter (17,18,19) is made up of two blocks of above perforated metal plates, and punching rate is not more than 30% on the plate, leaves the space between sheet metal, and the space distance is 20-50MM between the common metal plate, and optimum distance is 25-40MM.In order to eliminate remaining harmful gas CO and HC, reach the tail gas clean-up effect, the light metal magnesium plate of configuration band micropore in the wave filter (19) of vibration exhaust cavity (8), it can rise and help reduction.

The tube wall of described suction tude (9,10), ram's horns (12,13), outlet pipe (11) is smooth, on micropore is set, micro-pore diameter ф 1MM-3.0MM, the best is ф 1MM-1.5MM.

The outlet of described suction tude (9,10), ram's horns (12,13) is provided with reducing and expansion dehisce (20), last embedding splitting ring (21), and dehisce (20) and splitting ring (21) of reducing and expansion is equipped with the micropore of ф 1 MM-1.5MM.

Two-stage or multistage vibration chamber can be arranged to according to vehicle in described vibration chamber.Described ram's horns (12) is two, and their length differences are symmetrically distributed with the axle center.Described honeycomb duct (14,15) can respectively be provided with two, and they and housing (1) axle center are symmetrically distributed.

Claims

1, a kind of motor vehicle muffler purifier comprises tubular shell (1), suction tude (9) and outlet pipe (11), it is characterized in that described silencing purifier housing (1) inner chamber is by demarcation strip (2,3,4) be separated into one-level vibration chamber (5), secondary vibration chamber (6), expansion cavity (7) and vibration exhaust cavity (8) contract, in one-level vibration chamber (5), in the secondary vibration chamber (6) and the exhaust cavity (8) that vibrates with the axially vertical wave filter (17 that is provided with of housing (1), 18,19), and with suction tude (9,10), ram's horns (12,13), honeycomb duct (14,15,16) and outlet pipe (11) pass wave filter separately, and with the one-level chamber (5) that vibrates, secondary vibration chamber (6), contract expansion cavity (7) and the vibration exhaust cavity (8) be connected.

2, according to the described motor vehicle muffler purifier of claim 1, it is characterized in that described wave filter (17,18,19) is made up of two blocks of above perforated metal plates, leave the space between sheet metal.

3,, it is characterized in that the middle configuration of wave filter (19) the light metal magnesium plate of described vibration exhaust cavity (8) according to the described motor vehicle muffler purifier of claim 1.

4,, it is characterized in that on the tube wall of described suction tude (9,10), ram's horns (12,13), outlet pipe (11) micropore being set according to the described motor vehicle muffler purifier of claim 1.

5, according to the described motor vehicle muffler purifier of claim 1, the reducing and expansion that the outlet end that it is characterized in that described suction tude (9,10), ram's horns (12,13) is provided with the band micropore dehisce (20) and splitting ring (21).

6,, it is characterized in that described vibration chamber can be arranged to two-stage or multistage vibration chamber according to the described motor vehicle muffler purifier of claim 1.

7, according to the described motor vehicle muffler purifier of claim 1, it is characterized in that described ram's horns (12) is two, their length differences are symmetrically distributed with the axle center.

8, according to the described motor vehicle muffler purifier of claim 1, it is characterized in that described honeycomb duct (14,15) can respectively be provided with two, they and axle center are symmetrically distributed.