CN207145048U - Engine exhaust - Google Patents
Engine exhaust Download PDFInfo
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- CN207145048U CN207145048U CN201720962857.0U CN201720962857U CN207145048U CN 207145048 U CN207145048 U CN 207145048U CN 201720962857 U CN201720962857 U CN 201720962857U CN 207145048 U CN207145048 U CN 207145048U
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- engine
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- water jacket
- branch pipe
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Abstract
The utility model discloses a kind of engine exhaust, including body, inlet flange, exhaust flange and multiple exhaust branch pipes, the air inlet of each exhaust branch pipe is arranged on the inlet flange, the gas outlet of each exhaust branch pipe converges to the exhaust flange, also include water jacket, each exhaust branch pipe is each equipped with the corresponding water jacket, and the water inlet of the water jacket is arranged on the inlet flange, and the delivery port of the water jacket converges to the exhaust flange.A kind of engine thermal management system is also disclosed in the utility model.Because each exhaust branch pipe is each equipped with corresponding water jacket in the utility model, coolant is passed through in water jacket, independent cooling is carried out to each exhaust branch pipe, cooling effect is uniform.Can effectively the row of reduction temperature, cooling manifold body, reduce the heat radiation to surrounding components, avoid fuel oil from wasting, save energy consumption.
Description
Technical field
It the utility model is related to the technical field of car combustion engine, more particularly to a kind of engine exhaust.
Background technology
The effect of enmgine exhaust is to collect each cylinder burning waste gas, and uniformly introducing ternary catalyzing unit after mixing is given up
Gas post-processes.Determined by its working characteristics, exhaust manifold need to be by the heat radiation of high-temp waste gas, in high speed high load working condition, discrimination
Tube body temperature is one of part that thermic load is maximum on engine up to 600 DEG C.In order to slow down high temperature to surrounding engine machine and
The heat radiation of vehicle part, exhaust manifold surface are generally equipped with plating aluminium heat dissipator.Exhaust manifold material is mainly on the market at present
Cast iron and stainless steel, 950 DEG C of delivery temperatures of highest can be born.When row's temperature exceedes the resistance to extreme temperature of exhaust manifold material, hair
Motivation can be using increase distributive value, the row of reduction be warm by the way of enriching combustion mixture.But the waste of fuel oil can be so caused,
Increase energy consumption.
Therefore, it is necessary to design a kind of effectively row of reduction temperature, cooling manifold body, the heat radiation to surrounding components is reduced,
Avoid fuel oil from wasting, save the engine exhaust of energy consumption.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of effectively row of reduction temperature, cooling manifold
Body, the heat radiation to surrounding components is reduced, avoids fuel oil from wasting, save the engine exhaust of energy consumption.
The utility model provides a kind of engine exhaust, including body, inlet flange, exhaust flange and multiple exhausts
Branch pipe, the air inlet of each exhaust branch pipe are arranged on the inlet flange, and the gas outlet of each exhaust branch pipe is converged
Gather the exhaust flange, in addition to water jacket, each exhaust branch pipe is each equipped with the corresponding water jacket, the water jacket
Water inlet is arranged on the inlet flange, and the delivery port of the water jacket converges to the exhaust flange.
Further, the water jacket is to be opened in the hollow cavity that the exhaust branch pipe is at least partly surrounded in the body
Body, the hollow cavity are used to be passed through coolant.
Further, the water jacket corresponding to each exhaust branch pipe includes upper water sleeve and lower water jacket, the water inlet
Including upper water inlet and lower water inlet.
Further, the upper half of branch pipe is drained described in the upper water sleeve encirclement, the lower water jacket surrounds the exhaust branch
The lower half of pipe.
Further, the corner of the water jacket uses Rouno Cormer Pregrinding Wheel transition.
Further, engine exhaust is made up of aluminium alloy monoblock cast.
The utility model also provides a kind of engine thermal management system, including engine-cooling system, in addition to above-mentioned
A kind of engine exhaust, coolant flow into the water inlet from the engine-cooling system, and the delivery port returns
Water flows into the engine-cooling system.
Further, in addition to discharge manifold outlet pipe, the delivery port by the discharge manifold outlet pipe with it is described
Engine-cooling system connects.
Further, in addition to electronic thermostat, the engine-cooling system includes systemic circulation water return pipeline and small followed
Loopback water lines；Engine electronic control unit controls the opening and closing of the electronic thermostat, backwater is flowed into the systemic circulation
Water return pipeline or partial circulating water return pipeline.
Further, the engine electronic control unit controls the electronics section according to delivery temperature and manifold temperature
The opening and closing of warm device.
After adopting the above technical scheme, have the advantages that：
Because each exhaust branch pipe is each equipped with corresponding water jacket in the utility model, coolant is passed through in water jacket, to every
Individual exhaust branch pipe carries out independent cooling, and cooling effect is uniform.Can effectively the row of reduction temperature, cooling manifold body, reduce to surrounding
The heat radiation of part, avoids fuel oil from wasting, and saves energy consumption.
Brief description of the drawings
Referring to accompanying drawing, disclosure of the present utility model will be easier to understand.It should be understood that：These accompanying drawings are used only for
The purpose of explanation, and be not intended to and the scope of protection of the utility model is construed as limiting.In figure：
Fig. 1 is the front view of engine exhaust in the embodiment of the utility model one；
Fig. 2 is the left view of engine exhaust in the embodiment of the utility model one；
Fig. 3 is the stereogram of the water jacket of engine exhaust in the embodiment of the utility model one；
Fig. 4 is the exploded view of engine thermal management system in another embodiment of the utility model.
The reference table of comparisons：
10- engine exhaust 20- discharge manifold outlet pipe 30- electronic thermostats
40- systemic circulation water return pipeline 50- partial circulating water return pipeline 60- cylinder caps
70- pad 41- systemic circulation water inlets
1- body 2- inlet flange 3- exhaust flanges
4- air inlet 5- gas outlets 6- upper water sleeves
Water inlet on 7- lower water jacket 8- delivery ports 61-
Water inlet under 71-
Embodiment
Further illustrate specific embodiment of the present utility model below in conjunction with the accompanying drawings.
It is readily appreciated that, according to the technical solution of the utility model, in the case where not changing the utility model in essence spirit, this area
Those skilled in the art the various structures mode and implementation that can mutually replace.Therefore, detailed description below and
Accompanying drawing is only the exemplary illustration to the technical solution of the utility model, and is not to be construed as whole of the present utility model or is considered as
Utility model technical scheme is defined or limited.
Mention in this manual or may mention up, down, left, right, before and after, front, the back side, top, bottom etc.
Orientation term is defined relative to the construction shown in each accompanying drawing, and they are relative concepts, and it is therefore possible to can root
Correspondingly changed according to its residing diverse location, different use states.So also should not be by these or others side
Position term is construed to restricted term.
As shown in Figure 1-2, engine exhaust 10, including body 1, inlet flange 2, exhaust flange 3 and multiple exhausts
Branch pipe, the air inlet 4 of each exhaust branch pipe are arranged on inlet flange 2, and the gas outlet 5 of each exhaust branch pipe converges to degassing method
Orchid 3, in addition to water jacket, each exhaust branch pipe are each equipped with corresponding water jacket, and the water inlet of water jacket is arranged on inlet flange 2,
The delivery port 8 of water jacket converges to exhaust flange 3.
In the present embodiment, as shown in figure 3, water jacket corresponding to each exhaust branch pipe includes upper water sleeve 6 and lower water jacket 7, intake
Mouth includes upper water inlet 61 and lower water inlet 71.
Specifically, exhaust branch pipe and water jacket are arranged in body 1, offered on inlet flange 2 four air inlets 4, on
Water inlet 61 and lower water inlet 71, upper water inlet 61 are located at the top of air inlet 4, and lower water inlet 71 is located at the lower section of air inlet 4.
The outlet side of four exhaust branch pipes pools a gas outlet 5, and four upper water inlets 61 and lower water inlet 71 go out
Water end (W.E.) pools a delivery port 8.
Burning waste gas is passed through in air intake branch, is passed through coolant in water jacket, the coolant in water jacket carries out cold to body 1
But, prevent the temperature of engine exhaust 10 from exceeding the resistance to extreme temperature of menifold material.Engine exhaust 10 is to around zero
Part heat radiation significantly reduces, without reassembling exhaust manifold thermal shield.Also, each air intake branch is each equipped with a set of independent water
Set, is independently cooled down, cooling effect is uniform to each air intake branch.In addition, engine need not carry out oil spout enriching for the row's of reduction temperature,
Combustion mixture keeps chemically correct fuel, high combustion efficiency, and HC discharges significantly reduce.
In the present embodiment, as shown in figure 3, water jacket is to be opened in the hollow cavity that exhaust branch pipe is at least partly surrounded in body 1
Body, hollow cavity are used to be passed through coolant.Upper water sleeve 6 surrounds the upper half for draining branch pipe, and lower water jacket 7 is surrounded under exhaust branch pipe
Half cycle.
Upper water sleeve 6 and lower water jacket 7 can uniformly, quickly absorb exhaust branch to being cooled down around exhaust branch pipe
The temperature of burning waste gas in pipe.
Alternatively, each exhaust branch pipe can also only configure a water jacket, and the cross section of water jacket can be annular, or more
Semi-circular shape, around exhaust branch pipe.In addition, each exhaust branch pipe can also configure more than two water jackets.
It is preferred that the corner of water jacket uses Rouno Cormer Pregrinding Wheel transition, avoid producing current dead band, influence cooling effect.
Preferably, engine exhaust is made up of aluminium alloy monoblock cast.Aluminium alloy it is in light weight, be easy to be cast as
Type.
As shown in figure 4, engine thermal management system, including engine-cooling system, in addition to any of the above-described kind is started
Machine discharge manifold 10, coolant flow into water inlet from engine-cooling system, and the backwater of delivery port 8 flows into engine cool system
System.
Wherein, engine-cooling system arrangement within the engine, is mainly responsible for the cooling of the cylinder cap 60 of engine.Engine
The inlet flange 2 of discharge manifold 10 is connected by pad 70 with cylinder cap 60, and the waste gas docked with air inlet 4 is provided with cylinder cap 60
Gas outlet, the burning waste gas in cylinder cap 60 are passed through air inlet 4；Coolant water outlet corresponding with water inlet is provided with cylinder cap 60
Mouthful, coolant flows into water inlet.
After burning waste gas cools down in engine exhaust 10, discharge, entered in catalyst converter from gas outlet 5, with urging
Change device inlet gas uniformly to mix.
Due to introducing coolant from cylinder cap 60, the high-temperature water after cooling is returned directly to engine-cooling system, will not be extra
Increase cylinder cap thermic load.
Further, as shown in figure 4, also including discharge manifold outlet pipe 20, delivery port 8 passes through discharge manifold outlet pipe 20
Connected with engine-cooling system.
The backwater of delivery port 8 is flowed out by discharge manifold outlet pipe 20, enters engine-cooling system connection return pipe
Lu Zhong.The air flue and water jacket of cylinder cap need not be redesigned, make use of the existing engine-cooling system of engine, only increases by one
Discharge manifold outlet pipe 20 is compact-sized, simple.
Further, in addition to electronic thermostat 30, engine-cooling system includes systemic circulation water return pipeline 40 and small followed
Loopback water lines 50；Engine electronic control unit controls the opening and closing of electronic thermostat 30, backwater is flowed into systemic circulation backwater
Pipeline 40 or partial circulating water return pipeline 50.
In cold start-up operating mode, engine electronic control unit control electronic thermostat 30 closes systemic circulation water return pipeline 40,
Backwater returns to water pump via partial circulating water return pipeline 50.High-temp waste gas in engine exhaust 10 makes coolant quickly rise
Temperature, coolant walk partial circulating radiating less, can reduce cold start emission with acceleration motor warming-up.
In high load working condition, engine electronic control unit control electronic thermostat 30 opens systemic circulation water return pipeline 40,
Backwater enters systemic circulation water inlet 41, and after cooling by engine-cooling system, water pump is returned to by systemic circulation water return pipeline 40.
Because exhaust is well cooled down, without carrying out oil spout enriching for the row's of reduction temperature, discharge significantly reduces engine.
Further, engine electronic control unit controls opening for electronic thermostat according to delivery temperature and manifold temperature
Close.
In middle small load condition, the keying of electronic thermostat is controlled by delivery temperature and collector temperature common feedback, in discrimination
On the premise of pipe is no more than allowable temperature, water-cooled effect is adjusted, reaches optimization burning, improve the purpose of discharge.
Because burning quality is closely bound up with delivery temperature, delivery temperature and collector temperature have Sensor monitoring respectively, instead
It is fed to engine electronic control unit (ECU, Electronic Control Uni t).Calibration engineer can be according to feedback letter
Number, the keying of electronic thermostat is controlled, obtains desired delivery temperature, and then optimize burning.In simple terms, control is exactly passed through
The keying of electronic thermostat, engine thermal management system is set to be toggled between systemic circulation and partial circulating.
The utility model has advantages below：
1. for engine without carrying out oil spout enriching for the row's of reduction temperature, combustion mixture keeps chemically correct fuel, burning effect
Rate is high, and HC discharges significantly reduce；
2. delivery temperature and collector temperature controllable precise, it can be ensured that be not in that manifold overtemperature loses in engine operation process
Effect；
3. each exhaust branch pipe independently cools down, cooling effect is uniform, is advantageous to catalyst converter inlet gas and uniformly mixes；
4. drawing coolant from cylinder cap, the high-temperature water after cooling is returned directly to engine-cooling system, will not additionally increase cylinder
Lid thermic load；
5. the utility model need not redesign performance and water jacket；Whole engine thermal management system, only increases by one
Root water return pipeline is compact-sized, simple；
6. enmgine exhaust surface temperature significantly reduces not over 200 DEG C to surrounding components heat radiation.Without again
Assemble exhaust manifold thermal shield.
Above-described is only principle and preferred embodiment of the present utility model.It should be pointed out that for the general of this area
For logical technical staff, on the basis of the utility model principle, some other modifications can also be made, also should be regarded as this practicality
New protection domain.
Claims (10)
1. a kind of engine exhaust, including body, inlet flange, exhaust flange and multiple exhaust branch pipes, each row
The air inlet of gas branch pipe is arranged on the inlet flange, and the gas outlet of each exhaust branch pipe converges to the degassing method
It is blue, it is characterised in that to be also each equipped with the corresponding water jacket including water jacket, each exhaust branch pipe, the water jacket enters
The mouth of a river is arranged on the inlet flange, and the delivery port of the water jacket converges to the exhaust flange.
2. engine exhaust according to claim 1, it is characterised in that the water jacket is to be opened in the body
The hollow cavity of the exhaust branch pipe is at least partly surrounded, the hollow cavity is used to be passed through coolant.
3. engine exhaust according to claim 2, it is characterised in that described corresponding to each exhaust branch pipe
Water jacket includes upper water sleeve and lower water jacket, and the water inlet includes upper water inlet and lower water inlet.
4. engine exhaust according to claim 3, it is characterised in that the upper water sleeve surrounds the exhaust branch pipe
Upper half, the lower water jacket surrounds the lower half of the exhaust branch pipe.
5. according to the engine exhaust described in claim any one of 1-4, it is characterised in that the corner of the water jacket adopts
With Rouno Cormer Pregrinding Wheel transition.
6. according to the engine exhaust described in claim any one of 1-4, it is characterised in that engine exhaust is by aluminium
Alloy monoblock cast is made.
7. a kind of engine thermal management system, including engine-cooling system, it is characterised in that also appoint including claim 1-6
Engine exhaust described in one, coolant flow into the water inlet, the delivery port from the engine-cooling system
Backwater flow into the engine-cooling system.
8. engine thermal management system according to claim 7, it is characterised in that also including discharge manifold outlet pipe, institute
Delivery port is stated to connect with the engine-cooling system by the discharge manifold outlet pipe.
9. engine thermal management system according to claim 7, it is characterised in that also including electronic thermostat, the hair
Motivation cooling system includes systemic circulation water return pipeline and partial circulating water return pipeline；Engine electronic control unit controls the electronics
The opening and closing of thermostat, backwater is set to be flowed into the systemic circulation water return pipeline or partial circulating water return pipeline.
10. engine thermal management system according to claim 9, it is characterised in that the engine electronic control unit
The opening and closing of the electronic thermostat is controlled according to delivery temperature and manifold temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720962857.0U CN207145048U (en) | 2017-08-03 | 2017-08-03 | Engine exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720962857.0U CN207145048U (en) | 2017-08-03 | 2017-08-03 | Engine exhaust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207145048U true CN207145048U (en) | 2018-03-27 |
Family
ID=61674029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720962857.0U Active CN207145048U (en) | 2017-08-03 | 2017-08-03 | Engine exhaust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207145048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112601878A (en) * | 2018-08-30 | 2021-04-02 | 斯柯达汽车股份公司 | Exhaust manifold supplemental cooling system |
-
2017
- 2017-08-03 CN CN201720962857.0U patent/CN207145048U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112601878A (en) * | 2018-08-30 | 2021-04-02 | 斯柯达汽车股份公司 | Exhaust manifold supplemental cooling system |
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