CN203452887U - Exhaust drainage valve for diesel engine - Google Patents
Exhaust drainage valve for diesel engine Download PDFInfo
- Publication number
- CN203452887U CN203452887U CN201320465159.1U CN201320465159U CN203452887U CN 203452887 U CN203452887 U CN 203452887U CN 201320465159 U CN201320465159 U CN 201320465159U CN 203452887 U CN203452887 U CN 203452887U
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- outer sleeve
- inner sleeve
- drain valve
- diesel engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses an exhaust drainage valve for a diesel engine. The exhaust drainage valve for the diesel engine comprises a drainage valve outer sleeve pipe, wherein the drainage valve outer sleeve pipe is provided with an outer sleeve pipe air inlet and an outer sleeve pipe air outlet, a drainage valve inner sleeve pipe is sleeved with the drainage valve outer sleeve pipe and provided with an inner sleeve pipe air inlet and an inner sleeve pipe air outlet, the inner sleeve pipe air inlet is located in the drainage valve outer sleeve pipe, a one-way valve piece used for enabling air flow to only flow from the inner sleeve pipe air inlet to the outer sleeve pipe air outlet is arranged inside the drainage valve outer sleeve pipe, and the one-way valve piece is installed inside the drainage valve outer sleeve pipe in a hinged mode and abuts against the end surface of the inner sleeve pipe air outlet. The exhaust drainage valve for the diesel engine is simple in structure, low in production cost, low in opening pressure of the valve piece, good in air circulating performance, and capable of guaranteeing that guided air flow passes in an unimpeded mode in one direction, and well resolves the phenomenon of exhaust suck-back of the diesel engine.
Description
Technical field
The utility model relates to Diesel Engine Technique Field, especially relates to a kind of use for diesel engine exhaust drain valve.
Background technique
Engineering machinery is if bulldozer etc. is due to work under bad environment, and some larger particles are inhaled in air-strainer, as eliminating meeting not in time causes damage to diesel engine.As shown in Figure 1, in prior art, conventional method is to utilize the drainage of diesel engine high speed exhaust, after the larger particles in air filter being introduced to outlet pipe by the drainage tube 8 between outlet pipe 7 and air filter, with exhaust, discharge, this technique device is simple, with low cost, supporting convenience is installed and does not take up room, by most engineering machinery, adopted, in actual use, often outlet pipe is made to reducing shape to guarantee exhaust drainage effect, but also bring uttering long and high-pitched sounds that high back pressure loss and gas shock cause simultaneously, part tailpipe has been cancelled reducing device at present, result declines drainage effect, the negative pressure that the siphon particularly causing because diesel engine is air-breathing when diesel engine Part load produces is more lower than diesel exhaust gas drainage negative pressure, high-temperature exhaust air is poured in down a chimney into air filter through drainage tube, filter paper ignites, cause danger.
Through actual tests test, find; Diesel Engine Exhaust Pipe and air filter pressure difference value are less; really the negative pressure that there will be air filter negative pressure to cause lower than exhaust drainage during diesel air load; there is exhaust and pour in down a chimney phenomenon; therefore design and installation one one-way valve between outlet pipe and air filter, blocks and pours in down a chimney high-temperature exhaust air, can well protect filter paper; but require that this one-way valve has low cracking pressure, simple in structure, the way flow general character is good, and the effect of reply naturally having had when pressure at both sides equates.Conventional one-way valve majority is controlled by spring at present, and cracking pressure is high, and circulation is poor, cannot use as waste gas drainage one-way valve.
Model utility content
Technical problem to be solved in the utility model is: a kind of use for diesel engine exhaust drain valve is provided, and simple in structure, cost of production is low, valve block cracking pressure is low, the gas flow general character is good, can guarantee that drainage gas unidirectional is without hindrance to pass through the fine diesel exhaust gas suck-back phenomenon that solved.
For solving the problems of the technologies described above, the technical solution of the utility model is: use for diesel engine exhaust drain valve, comprise drain valve outer sleeve, described drain valve outer sleeve has outer sleeve suction port and outer sleeve air outlet, in described drain valve outer sleeve, be arranged with drain valve inner sleeve, described drain valve inner sleeve has inner sleeve suction port and inner sleeve air outlet, described inner sleeve suction port is positioned at described drain valve outer sleeve, in described drain valve outer sleeve, be provided with one for making air-flow can only be flowed to by described inner sleeve suction port the check valve sheet of described outer sleeve air outlet, described check valve sheet is hinged to be installed in described drain valve outer sleeve and to offset with the end face of described inner sleeve air outlet.
Preferably, the end face of described inner sleeve air outlet and the axis shape of described drain valve inner sleeve have angle, and the shape of the end face of described check valve sheet and described inner sleeve air outlet is suitable.
Preferably, the internal surface of described drain valve outer sleeve is provided with inner stopper, and the outer surface of described drain valve inner sleeve is provided with the outer stopper suitable with described inner stopper.
Adopted technique scheme, the beneficial effects of the utility model are: because use for diesel engine exhaust drain valve comprises drain valve outer sleeve, in drain valve outer sleeve, be arranged with drain valve inner sleeve, inner sleeve suction port is positioned at drain valve outer sleeve, in drain valve outer sleeve, be provided with one for making air-flow can only be flowed to by inner sleeve suction port the check valve sheet of outer sleeve air outlet, hinged being installed on drain valve inner sleeve and with the end face of inner sleeve air outlet of check valve sheet offsets, during diesel engine work, the drainage causing due to exhaust produces pressure difference value before and after one-way valve, after reaching certain amplitude, pressure difference value overcomes check valve sheet self gravitation, check valve sheet is backed down, gas by one-way valve one effluent to opposite side, if diesel engine condition changes, load declines, one-way valve pressure at both sides is poor to be reduced, check valve sheet is because self gravitation effect is closed voluntarily, in addition, when diesel engine is during in running no load, exhaust lateral pressure is higher than air filter side, use this drain valve can avoid the refluence of high-temperature gas.This exhaust drain valve is simple in structure, and cost of production is low, and valve block cracking pressure is low, and the gas flow general character is good, can guarantee that drainage gas unidirectional is without hindrance to pass through.
Because the end face of inner sleeve air outlet and the axis shape of drain valve inner sleeve have angle, make the natural return of check valve sheet effective, the shape of the end face of check valve sheet and inner sleeve air outlet is suitable, when guaranteeing sealing when check valve sheet is closed and opening without resistive.
Accompanying drawing explanation
Fig. 1 is diesel exhaust gas flow guiding structure of the prior art;
Fig. 2 is the utility model embodiment's structural representation;
Fig. 3 is that Fig. 2 is at the sectional view at A-A place;
Wherein: 1, drain valve outer sleeve; 2, drain valve inner sleeve; 3, check valve sheet; 4, rotating shaft; 5, inner stopper; 6, outer stopper; 7, outlet pipe; 8, drainage tube; 11, outer sleeve suction port; 12, outer sleeve air outlet; 21, inner sleeve suction port; 22, inner sleeve air outlet.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Fig. 2 and Fig. 3 are common, use for diesel engine exhaust drain valve, comprise drain valve outer sleeve 1, drain valve outer sleeve 1 has outer sleeve suction port 11 and outer sleeve air outlet 12, in drain valve outer sleeve 1, be arranged with drain valve inner sleeve 2, drain valve inner sleeve 2 has inner sleeve suction port 21 and inner sleeve air outlet 22, inner sleeve suction port 21 is positioned at drain valve outer sleeve 1, is provided with one for making air-flow can only be flowed to by inner sleeve suction port 21 check valve sheet 3 of outer sleeve air outlet 12 in drain valve outer sleeve 1.In the present embodiment, check valve sheet 3 offsets by hinged being installed on drain valve inner sleeve 2 and with the end face of inner sleeve air outlet 22 of a rotating shaft 4.
In addition, the axis shape of the end face of inner sleeve air outlet 22 and drain valve inner sleeve 2 has angle, make the natural return of check valve sheet 3 effective, check valve sheet 3 is suitable with the shape of the end face of inner sleeve air outlet 22, when guaranteeing sealing when check valve sheet 3 is closed and opening without resistive.
Fixation for the ease of drain valve outer sleeve 1 with drain valve inner sleeve 2, the internal surface of drain valve outer sleeve 1 is provided with inner stopper 5, and the outer surface of drain valve inner sleeve 2 is provided with the outer stopper 6 suitable with inner stopper 5.
Its working principle is as follows:
During diesel engine work, the drainage causing due to exhaust produces pressure difference value before and after valve, after reaching certain amplitude, pressure difference value overcomes check valve sheet 3 self gravitations, check valve sheet 3 is backed down, gas flows to outer sleeve air outlet 12 by inner sleeve suction port 21, if diesel engine condition changes, load declines, poor the reducing of check valve sheet 3 pressure at both sides, check valve sheet 3 is because self gravitation effect is closed voluntarily, in addition, and when diesel engine is during in running no load, exhaust lateral pressure, higher than air filter side, is used this drain valve can avoid the refluence of high-temperature gas.
In sum, this exhaust drain valve is simple in structure, and cost of production is low, and check valve sheet 3 cracking pressures are low, and the gas flow general character is good, can guarantee that drainage gas unidirectional is without hindrance to pass through.
The utility model is not limited to above-mentioned concrete mode of execution, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done, within all dropping on protection domain of the present utility model.
Claims (4)
1. use for diesel engine exhaust drain valve, it is characterized in that, comprise drain valve outer sleeve, described drain valve outer sleeve has outer sleeve suction port and outer sleeve air outlet, in described drain valve outer sleeve, be arranged with drain valve inner sleeve, described drain valve inner sleeve has inner sleeve suction port and inner sleeve air outlet, described inner sleeve suction port is positioned at described drain valve outer sleeve, is provided with one for making air-flow can only be flowed to by described inner sleeve suction port the check valve sheet of described outer sleeve air outlet in described drain valve outer sleeve.
2. use for diesel engine exhaust drain valve as claimed in claim 1, is characterized in that, hinged being installed on described drain valve inner sleeve and with the end face of described inner sleeve air outlet of described check valve sheet offsets.
3. use for diesel engine exhaust drain valve as claimed in claim 1 or 2, is characterized in that, the end face of described inner sleeve air outlet and the axis shape of described drain valve inner sleeve have angle, and the shape of the end face of described check valve sheet and described inner sleeve air outlet is suitable.
4. use for diesel engine exhaust drain valve as claimed in claim 1, is characterized in that, the internal surface of described drain valve outer sleeve is provided with inner stopper, and the outer surface of described drain valve inner sleeve is provided with the outer stopper suitable with described inner stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320465159.1U CN203452887U (en) | 2013-07-31 | 2013-07-31 | Exhaust drainage valve for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320465159.1U CN203452887U (en) | 2013-07-31 | 2013-07-31 | Exhaust drainage valve for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203452887U true CN203452887U (en) | 2014-02-26 |
Family
ID=50132771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320465159.1U Expired - Lifetime CN203452887U (en) | 2013-07-31 | 2013-07-31 | Exhaust drainage valve for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203452887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106273353A (en) * | 2016-08-31 | 2017-01-04 | 芜湖恒耀汽车零部件有限公司 | The preparation method of reverse-filling automobile exhaust pipe device splash guard |
-
2013
- 2013-07-31 CN CN201320465159.1U patent/CN203452887U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106273353A (en) * | 2016-08-31 | 2017-01-04 | 芜湖恒耀汽车零部件有限公司 | The preparation method of reverse-filling automobile exhaust pipe device splash guard |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203452887U (en) | Exhaust drainage valve for diesel engine | |
| CN206972989U (en) | A kind of drainage pipeline anti-backflow device | |
| CN109139425A (en) | Electric bus anti-spraying oil intake valve used for air compressor | |
| CN204716350U (en) | A kind of high efficiency filter sterilization cooling tube | |
| CN202117746U (en) | Muffler structure with automatic drainage function | |
| CN204200326U (en) | A kind of diesel exhaust gas bend pipe | |
| CN104847994A (en) | Eddy-current type solid-liquid separation bidirectional blowdown apparatus | |
| CN205135752U (en) | Motorcycle silencer | |
| CN103939198A (en) | Diesel engine waste gas purification structure | |
| CN205910032U (en) | Sewage detection sampling equipment | |
| CN204716371U (en) | A kind of exhaust gases of internal combustion engines sterilization cooling tube | |
| CN208982245U (en) | Electric bus anti-spraying oil intake valve used for air compressor | |
| CN208919500U (en) | A kind of pipeline vacuum non-return drainage skew T valve | |
| CN204041185U (en) | A kind of silencing apparatus | |
| CN203532852U (en) | Swing type three-way check valve with both side filter screens | |
| CN209012494U (en) | A kind of unit flame proof valve | |
| CN208416758U (en) | A kind of denoising device of engine of boat and ship | |
| CN205400796U (en) | Automatic ware that drains of gas drainage under suction | |
| CN202532678U (en) | Silencer air-return inlet system with sound absorption wedges | |
| CN204716369U (en) | A kind of internal-combustion engine sterilization heat radiation outlet pipe | |
| CN204312750U (en) | A kind of built-in bend anti-backflow ball valve | |
| CN204716355U (en) | A kind of internal-combustion engine sterilization venting gas appliance | |
| CN203240264U (en) | Backwash steam trap set with filter | |
| CN203929326U (en) | A kind of gasoline engine water pump test device for air tightness | |
| CN204419413U (en) | A kind of S495 diesel engine suction tude modified node method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |
|
| CX01 | Expiry of patent term |