CN2890367Y

CN2890367Y - Exhaust accelerating unit of exhaust pipe

Info

Publication number: CN2890367Y
Application number: CN 200620050231
Authority: CN
Inventors: 张仁本
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-08
Filing date: 2006-03-08
Publication date: 2007-04-18
Anticipated expiration: 2016-03-08

Abstract

The utility model discloses an exhaust accelerating unit of exhaust pipe. An air current channel is arranged in the center of a shunt component. Two ends of the air current channel are respectively provided with an air intake end and a discharge end, and the middle part of the air current channel shows the nozzle part with gradually reducing inner diameter. A plurality of shunt air holes communicated with the nozzle part of the air current channel are arranged on the middle part edge of the shunt component, and an airflow hole is interpenetrated in the center of a cohesive seat. One end of the airflow hole is connected with the air intake end of the shunt component, and the other end of the airflow hole is provided with a bell mouth extending outward which can be located on the surface of a silencer and make the airflow hole communicated with outside. The shunt component is arranged in gas chamber inside the silencer, and an airway is connected with the discharge end of the shunt component, making the other end of the airway extend to the tail pipe of the silencer and toward the discharge end. The utility model is simple in structure, convenient in assembly, can effectively increase the exhaust emission velocity of the exhaust pipe, and improves the efficiency and fluency of exhaust so as to improve engine running efficiency.

Description

The exhaust accelerating unit of outlet pipe

Technical field:

The utility model relates to a kind of outlet pipe, is meant a kind of flow rate of quickening air-flow especially, promotes the exhaust accelerating unit of the outlet pipe of toxic emission effect.

Background technique:

The exhaust pipe structure of having seen, have as shown in Figure 1, its terminal outer circumferential side that mainly lies in outlet pipe 8 is provided with a baffler 70, and be provided with a pipe internal partition 82 with respect to this position, baffler 70 stage casing in this outlet pipe 8, and this outlet pipe 8 also is provided with the preceding pore 81 of several adjacent inlet ends and the posterior spiracle 83 of several adjacent exhaust ends in two other peripheries of this pipe internal partition 82, then be located at the preceding pore 81 stage casing outer periphery of this outlet pipe 8 in this baffler 70 with a baffler 701, be located at the posterior spiracle 83 stage casing outer periphery of this outlet pipe 8 in addition with the demarcation strip 702 of several vents 7021 of a tool, make in this baffler 70 and intercept air chamber 7011 and two air chambers 703 that are communicated with by being separated into one behind the forward direction, 704, and this outlet pipe 8 convexedly stretches in outside the baffler 70 with a tail pipe 84 in addition; In the said structure, after the inlet end importing of waste gas by outlet pipe 8 of engine emissions, can make waste gas by preceding pore 81 ejections owing to be subjected to managing the obstruct of internal partition 82, wherein a part of waste gas can enter and intercept air chamber 7011 and be subjected to great resistance, all the other waste gas then enter air chamber 703, and the waste gas in this air chamber 703 can be subjected to continue the exhaust gas pressure that enters finally and have part to be got back in the outlet pipe 8 by posterior spiracle 83, all the other waste gas then flow into air chamber 704 by vent 7021, again by air chamber 704 in posterior spiracle 83 flows back to outlet pipe 8, at last, all waste gas are all flowed out by tail pipe 84.

Other has structure as shown in Figure 2, its terminal outer circumferential side that lies in an outlet pipe 80 is provided with a baffler 7, in this baffler 7 with a baffler 71, two compartment plate 72,73 by being separated into an air chamber 74 that intercepts air chamber 711 and be connected behind the forward direction one by one, 75,76, this outlet pipe 80 directly is inserted in this air chamber 74 by intercepting air chamber 711, and intercept air chamber 711 position peripheries in the neighbour and be provided with several pores 801, and the demarcation strip 72 of this baffler 7 is to be communicated in terminal air chamber 76 with a breathing pipe 721, middle air chamber 75 then is communicated with this air chamber 76 with a breathing pipe 731, at last, externally be communicated with at least one tail pipe 77 by this air chamber 75; After the inlet end importing of waste gas by outlet pipe 80 of engine emissions, part waste gas can be entered by pore 801 and intercept air chamber 711 and be subjected to great resistance, all the other waste gas then enter air chamber 74, and the waste gas in the air chamber 74 can import air chamber 76 via breathing pipe 721, import air chamber 75 by breathing pipe 731 again, at last, all waste gas are all derived by tail pipe 77.

The structure of said two devices, it all increases exhaust-gas flow by circuitous mode stroke reduces its flow velocity and consumes the energy of waste gas, makes it reach the default effect that reduces noise; Yet the exhaust to engine that this kind noise-reducing structure is also relative forms resistance, inevitably influences the smooth and easy of exhaust.

The model utility content:

Technical problem to be solved in the utility model is at the deficiencies in the prior art, to provide a kind of toxic emission speed that can effectively increase outlet pipe, the efficient and the smoothness of lifting exhaust, and then the exhaust accelerating unit of enhancement engine running efficient.

In order to solve the problems of the technologies described above, the technological scheme that the utility model adopted is: a kind of exhaust accelerating unit of outlet pipe, at least comprise: at least one shunting acceleration component, the central authorities of this shunting acceleration component provide an air-flow path, these air-flow path two ends are arranged with an inlet end and an exhaust end, and provided plural number shunting pore on the shunting acceleration component near inlet end, made the inside and outside perforation of air-flow path; The inlet end of air-flow path is through with one can and make the inner and outer airflow hole that is communicated with of this air-flow path for the surface that is positioned baffler, and exhaust end then is connected near the tail end place with the discharge pipe of a baffler; This shunting acceleration component just can be placed in the air chamber of this baffler inside, and this inlet end inside is established and an internal diameter is housed by the outer acceleration nozzle of convergent inwardly.

In the such scheme: the inlet end of described air-flow path is provided with outwardly a horn mouth that is used to be positioned the baffler surface.Described shunting acceleration component is provided with a filter screen at the inlet end place.Described air-flow path is laid with plural number shunting pore near the inlet end place, and this acceleration nozzle is towards the inner screen-wall that forms a relative shunting pore of air-flow path.

The utility model compared with prior art, its beneficial effect is: utilize the spray nozzle part of the waste gas of baffler inner plenum by the shunting pore inlet air flow stream passage of shunt assembly, can quicken the flow velocity of this position air-flow, and form a high low pressure pumping action, be beneficial to introduce outside air naturally via the airflow hole of connecting base, and the tail pipe of guiding baffler discharges and forms a forced draft, reaches an effect of quickening exhaust.

As for detailed construction of the present utility model, application principle, effect and effect, then the explanation of doing with reference to following adjoint can be understood completely.

Description of drawings:

Fig. 1 one has seen outlet pipe and relevant muffler structure schematic representation.

Fig. 2 is that another has seen outlet pipe and relevant muffler structure schematic representation.

Fig. 3 is the structure decomposition map of the utility model one preferred embodiment.

Fig. 3 A is the three-dimensional combination figure of Fig. 3.

Fig. 4 is the structure section schematic representation of the utility model embodiment and first kind of feasible baffler.

Fig. 4 A is the stereo appearance figure of Fig. 4.

Fig. 5 is the combination generalized section of the utility model embodiment and second kind of feasible baffler.

Fig. 5 A is the stereo appearance figure of Fig. 5.

Fig. 6 is the combination generalized section of the utility model embodiment and the third feasible baffler.

Fig. 6 A is the stereo appearance figure of Fig. 6.

Label declaration:

1..... shunting acceleration component 11.... air-flow path

111... inlet end 112... exhaust end

113... acceleration nozzle 13... shunts pore

14.... filter screen 21.... horn mouth

7,70,9,90.... baffler 71,701,91... baffler

711,7011,94... intercepts air chamber 72,73,702... demarcation strip

721,731... breathing pipe 77,85... tail pipe

74,75,76,703,704,95,96,904,905,906... air chamber

7021,911,921,9011,9021.. vent

8, pore before the 80.... outlet pipe 81....

82.... pipe internal partition 83.... posterior spiracle

84.... pipe tail 801... pore

92,901... demarcation strip

Embodiment:

Fig. 3 and 3A are that the utility model first embodiment's structure decomposes and constitutional diagram, by it structure outward appearance and the sectional view of relevant baffler 9 are arranged with reference to Fig. 4 to Fig. 6, structure of the present utility model as can be known comprises: shunting acceleration component 1, its central authorities provide an air-flow path 11, these air-flow path 11 2 ends are arranged with an inlet end 111 and exhaust end 112, and be through with an airflow hole at this inlet end 111, and be provided with the acceleration nozzle 113 of an internal diameter convergent in this airflow hole place; This shunting acceleration component 1 can be equipped with a filter screen 14 in the airflow hole place of inlet end 111 again, and periphery has provided plural number shunting pore 13 and is connected with air-flow path 11; Inlet end 111 can be provided with a horn mouth that expands outwardly 21 again, and is incorporated into the surface of baffler 9 with this horn mouth 21, makes this air-flow path 11 utilize inlet end 111 to communicate with the external world; Again and the exhaust end 112 of this air-flow path 11 then is connected near the tail end place mutually with the discharge pipe of baffler.

In relevant baffler 9 then with baffler 91, and the demarcation strip 92 with vent 921 intercepts air chamber 94 and the plural air chamber 95 and 96 that is connected by being separated into one by one behind the forward direction, make this outlet pipe 80 directly connect baffler 91 and demarcation strip 92 and stretch into each air chamber 94,95 and 96, and in outlet pipe 80 corresponding each gas difference position, if tool pore 801 is to be communicated in each air chamber 94,95 and 96, and making this horn mouth 21 be positioned at baffler 9 front end surface, 11 of air-flow paths extand rearward in the air chamber 96 of rear.

In the utility model said structure, after the waste gas of engine emissions imported air chamber 95,96 by outlet pipe 80, a part of waste gas can be entered by the shunting pore 13 of shunting acceleration component 1 among the air-flow path 11; In addition, because this acceleration nozzle 113 forms internal diameter convergent kenel in the inlet end 111 of air-flow path 11, ambient air produces flow velocity (venturi-effect) faster during by this acceleration nozzle 113, in addition above-mentioned part waste gas is flow to by shunting pore 13, this air pressure near acceleration nozzle 113 positions is increased, and whole air-flow flows to exhaust end 112 sooner; Thus, will be to forming the additional-air inlet effect of a suction between this horn mouth 21 inside and outside, not only can more quicken to introduce outside air, also can quicken to draw the waste gas that intercepts air chamber 94 inside by shunting pore 13, discharge by exhaust end 112 again, and then form the effect of quickening discharging waste gas, and can force band to draw the effect of this toxic emission by outside air at its pipe tail (tail end discharge pipe) 84; Need benly to be, when the length of acceleration nozzle 113, extend inwardly past the position that is laid with shunting pore 13, then more can further produce and prevent to enter near the nozzle air by the external world, 13 places produce reverse shielding action of backwashing at the shunting pore.

Fig. 5 and 5A are the constitutional diagrams of the utility model and another form baffler 90, shown in this figure, it is separated into the air chamber 904,905,906 that plural number is connected with the demarcation strip 901 of tool vent 9011 after by forward direction one by one in relevant baffler 90, make this outlet pipe 80 stretch to leading portion air chamber 904, and in the air chamber 906 than rear, then there is a tail pipe 85 to extend in addition and is communicated with to the external world; During assembling, make this horn mouth 21 of shunting acceleration component 1 be fixed in the front-end table side of baffler 90, the air-flow path 11 of shunting acceleration component 1 inside is connected with the external world, and make its air-flow path 11 hold air chamber 906 to extend in addition towards rear, seal within this tail pipe 85 to exhaust end 112, utilize as hereinbefore action and principle, can reach identical acceleration discharging waste gas function.

Fig. 6 and 6A are the utility model and the constitutional diagram of a kenel baffler 7 again, shown in this figure, it is the front-end table side that is fixed in baffler 7 with two horn mouths 21, the air-flow path 11 of shunting acceleration component 1 inside is in communication with the outside, and its two air-flow path 11 is extanded rearward in the two default tail pipes 77, use the acceleration discharging waste gas effect that reaches better.

Claims

1. the exhaust accelerating unit of an outlet pipe is characterized in which comprises at least:

At least one shunting acceleration component, the central authorities of this shunting acceleration component provide an air-flow path, these air-flow path two ends are arranged with an inlet end and an exhaust end, and have provided plural number shunting pore on the shunting acceleration component near inlet end, make the inside and outside perforation of air-flow path;

The inlet end of air-flow path is through with one can and make the inner and outer airflow hole that is communicated with of this air-flow path for the surface that is positioned baffler, and exhaust end then is connected near the tail end place with the discharge pipe of a baffler; This shunting acceleration component just can be placed in the air chamber of this baffler inside, and this inlet end inside is established and an internal diameter is housed by the outer acceleration nozzle of convergent inwardly.

2. the exhaust accelerating unit of outlet pipe according to claim 1 is characterized in that: the inlet end of described air-flow path is provided with outwardly a horn mouth that is used to be positioned the baffler surface.

3. the exhaust accelerating unit of outlet pipe according to claim 1 and 2, it is characterized in that: described shunting acceleration component is provided with a filter screen at the inlet end place.

4. the exhaust accelerating unit of outlet pipe according to claim 1 and 2 is characterized in that: described air-flow path is laid with plural number shunting pore near the inlet end place, and this acceleration nozzle is towards the inner screen-wall of shunting pore relatively that forms of air-flow path.

5. the exhaust accelerating unit of outlet pipe according to claim 3 is characterized in that: described air-flow path is laid with plural number shunting pore near the inlet end place, and this acceleration nozzle is towards the inner screen-wall of shunting pore relatively that forms of air-flow path.