CN109026361A - A kind of New type gland cover used in turbocharger - Google Patents
A kind of New type gland cover used in turbocharger Download PDFInfo
- Publication number
- CN109026361A CN109026361A CN201811089194.1A CN201811089194A CN109026361A CN 109026361 A CN109026361 A CN 109026361A CN 201811089194 A CN201811089194 A CN 201811089194A CN 109026361 A CN109026361 A CN 109026361A
- Authority
- CN
- China
- Prior art keywords
- turbocharger
- sealing shroud
- closure gasket
- gasket groove
- disc
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/14—Lubrication of pumps; Safety measures therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
Abstract
A kind of New type gland cover used in turbocharger disclosed by the invention, wherein the end A of the sealing shroud is close to TC bearings body oil pocket, the end B of sealing shroud is contacted with compressor impeller, it is characterized in that, it is equipped with disc at the end A of the sealing shroud, the first closure gasket groove is provided in the outer circle of the disc；The second closure gasket groove is provided in the end the B outer circle of the sealing shroud.In addition labyrinth type annular groove is provided between the end A of the sealing shroud and the end B.Sealing nested structure of the invention was not only simple, cost is relatively low but also can effectively improve the anti-negative pressure ability of turbocharger.The sealing shroud of the invention is suitable for diesel oil, gas and the gasoline engine turbocharger of motor etc. of high air-intake negative-pressure.
Description
Technical field
The present invention relates to turbo-charger technical field, especially a kind of novel seal used in turbocharger
Set.
Background technique
With internal combustion engine reinforcing degree continuous improvement and discharge standard it is increasingly strict, turbocharging technology become mentions
One of the measure that high internal combustion engine is economical, dynamic property and discharge standard are the most key.With oil and gasoline machine and nobody
The development of the turbocharging technology of aircraft, the air-intake negative-pressure born is also continuously increased, since sealing shroud is turbocharger pressure
Key components and parts in the sealing structure of mechanism of qi end have ten to the reliability of the sealability of booster, even booster
Divide important influence.The structure of sealing shroud determines turbocharger air compressor terminal tool sealability.Seal nested structure design
The unreasonable booster anti-negative pressure ability under low speed and load operating condition that will lead to is poor, so as to cause booster oil leak and gas blowby.
In order to improve the anti-negative pressure ability of turbocharger, reduce the oil leakage fault of booster, each booster manufacturer into
Extensive research is gone.
Have an oblique angle disc and intermediate disc as patent ZL201520888694.7 provides one kind, oblique angle disc and
The sealing shroud for getting rid of oil groove is equipped between intermediate disc, this structure can effectively improve booster high speed sealing effect, but not
It can solve booster Leakage under the slow-speed of revolution and running on the lower load.
Also as patent ZL201621450748.2 provides a kind of double discs, double sealings for getting rid of oil groove and twin nuclei
Set, this structure can improve the sealing effect of booster to a certain extent, but outside the disc diameter of this structure and closure gasket groove
Diameter is in the same size, and disc diameter is too small, and to get rid of oily effect undesirable, and the structure gets rid of oil groove and closure gasket groove designed closely, lubricates
Oil is easy to be sucked out by negative pressure, eventually leads to booster oil leak.
Summary of the invention
The purpose of the present invention is being to overcome the shortcomings of above-mentioned technology, and it is anti-to provide a kind of turbocharger that can effectively improve
Negative pressure ability, solve turbocharger under low speed and running on the lower load Leakage used in turbocharger it is novel
Sealing shroud.
In order to achieve the above-mentioned object of the invention, the technical scheme adopted by the invention is that:
A kind of New type gland cover used in turbocharger, wherein the end A of the sealing shroud is close to TC bearings
The end B of body oil pocket, sealing shroud is contacted with compressor impeller, disc is equipped at the end A of the sealing shroud, in the disc
Outer circle on be provided with the first closure gasket groove；The second closure gasket groove is provided in the end the B outer circle of the sealing shroud.
In a preferred embodiment of the invention, labyrinth type annular is provided between the end A of the sealing shroud and the end B
Groove.
In a preferred embodiment of the invention, the quantity of first closure gasket groove be 1 or two, described second
The quantity of closure gasket groove is 1 or two.
In a preferred embodiment of the invention, the disc close on the end face of second closure gasket groove with it is described
The edge that second closure gasket groove closes on the disc is concordant.
In a preferred embodiment of the invention, the outer diameter of first closure gasket groove is greater than second closure gasket groove
Outer diameter, and the difference of the two is in 12mm or more.
In a preferred embodiment of the invention, chamfering is equipped in the end face of the disc.
Due to using technical solution as above, compared with the prior art, the invention has the following features:
When booster work, six seal structures of the sealing shroud can effectively improve the anti-negative pressure energy of turbocharger
Power.
When starting to work normally, lubricating oil is got rid of the oil back chamber into bearing body by the first disc under the influence of centrifugal force
First of sealing function is inside played, the sealing ring engaged therewith of the first closure gasket groove together on the first disc constitutes second
It seals, the sealing ring engaged therewith of the first closure gasket groove of another road on the first disc constitutes three seals.
When engine is in low speed and running on the lower load work, and air-intake negative-pressure is excessive, the 4th is sealed into labyrinth type
Annular groove, it increases the first closure gasket groove of another road on the first disc and the second sealing together on the second disc
The distance between annular groove is difficult to be drawn onto lubricating oil, effectively increases the anti-negative of booster when impeller wheel back row is at negative pressure
Pressure energy power.Even if after thering is a small amount of lubricating oil to flow into labyrinth type annular groove, 2 second closure gasket grooves and matched
Sealing has been gone in ring to be sealed at the 5th and the 6th, the bicyclic double flute knot that the second closure gasket groove of twice on the second disc is constituted
Structure can be completely by lubrication oil catch a small amount of in labyrinth type annular groove in labyrinth type annular groove.
Sealing nested structure of the invention was not only simple, cost is relatively low but also can effectively improve the anti-negative pressure ability of turbocharger.
The sealing shroud of the invention is suitable for diesel oil, gas and the gasoline engine turbocharger of motor etc. of high air-intake negative-pressure.
Detailed description of the invention
Fig. 1 is the New type gland cover structural schematic diagram of the invention used in turbocharger.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Specific embodiment
Detailed construction of the invention is further described below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, a kind of New type gland cover used in turbocharger shown in figure, the wherein end A of sealing shroud
Close to TC bearings body oil pocket, the end B of sealing shroud is contacted with compressor impeller, is equipped with disc 1 at the end A of sealing shroud,
Chamfering 8 is equipped in the end face of disc 1.The first closure gasket groove is provided in the outer circle of disc 1；First closure gasket groove can be with
For together, two seals annular groove 2 and 3 can also be divided into.
The second seal groove is provided in the outer circle at the end B of sealing shroud.Second closure gasket groove can also divide for together
For two seals annular groove 5 and 6.The edge that disc 1 closes on the end face 7 of closure gasket groove 5 and closure gasket groove 5 closes on disc 1 is flat
Together.The outer diameter of two seals annular groove 2 and 3 be greater than two seals annular groove 5 and 6 outer diameter, and the difference of the two 12mm and with
On.
Labyrinth type annular groove 4 is provided between the end A and the end B of sealing shroud.
When starting to work normally, disc 1 under the influence of centrifugal force gets rid of lubricating oil in the oil back chamber of bearing body
First of sealing function is played, the sealing ring engaged therewith of closure gasket groove 2 constitutes second sealing, and closure gasket groove 3 cooperates with it
Sealing ring constitute three seals.
When engine is in low speed and running on the lower load work, and air-intake negative-pressure is excessive, the 4th is sealed into labyrinth type
Annular groove 4, it increases the distance between closure gasket groove 3 and closure gasket groove 5, even if impeller wheel back row at negative pressure when be difficult
It is drawn onto lubricating oil, effectively increases the anti-negative pressure ability of booster.Even if recessed when there is a small amount of lubricating oil to flow into labyrinth type annular
After slot 4, closure gasket groove 5 and closure gasket groove 6 and matched sealing have gone in ring into the 5th and the 6th sealing, closure gasket groove
5 and closure gasket groove 6 constitute bicyclic dual-slot structure can be completely by lubrication oil catch a small amount of in labyrinth type annular groove 4 in labyrinth type
In annular groove 4.
Claims (6)
1. a kind of New type gland cover used in turbocharger, wherein the end A of the sealing shroud is close to TC bearings body
The end B of oil pocket, sealing shroud is contacted with compressor impeller, which is characterized in that it is equipped with disc at the end A of the sealing shroud,
The first closure gasket groove is provided in the outer circle of the disc；The second sealing ring is provided in the end the B outer circle of the sealing shroud
Slot.
2. a kind of New type gland cover used in turbocharger as described in claim 1, which is characterized in that described close
Labyrinth type annular groove is provided between the end A and the end B of big envelope.
3. a kind of New type gland cover used in turbocharger as described in claim 1, which is characterized in that described first
The quantity of closure gasket groove is 1 or two, and the quantity of second closure gasket groove is 1 or two.
4. a kind of New type gland cover used in turbocharger as described in claim 1, which is characterized in that described to get rid of oil
The end face that disk closes on second closure gasket groove is concordant with the edge that second closure gasket groove closes on the disc.
5. a kind of New type gland cover used in turbocharger as described in claim 1, which is characterized in that described first
The outer diameter of closure gasket groove is greater than the outer diameter of second closure gasket groove, and the difference of the two is in 12mm or more.
6. a kind of New type gland cover used in turbocharger as described in claim 1, which is characterized in that got rid of described
The end face of food tray is equipped with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811089194.1A CN109026361A (en) | 2018-09-18 | 2018-09-18 | A kind of New type gland cover used in turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811089194.1A CN109026361A (en) | 2018-09-18 | 2018-09-18 | A kind of New type gland cover used in turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109026361A true CN109026361A (en) | 2018-12-18 |
Family
ID=64616785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811089194.1A Pending CN109026361A (en) | 2018-09-18 | 2018-09-18 | A kind of New type gland cover used in turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109026361A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201610786U (en) * | 2010-02-02 | 2010-10-20 | 高密市天缘精密机械制造有限公司 | Gland cover of turbo-charger |
| CN104594961A (en) * | 2014-04-24 | 2015-05-06 | 宁波摩多汽车零部件有限公司 | Gas compressor end sealing structure of turbocharger |
| CN205101283U (en) * | 2015-10-28 | 2016-03-23 | 长城汽车股份有限公司 | Turbo charger's compressor end seal structure , turbo charger and car |
| CN209671071U (en) * | 2018-09-18 | 2019-11-22 | 湖南天雁机械有限责任公司 | A kind of New type gland cover used in turbocharger |
-
2018
- 2018-09-18 CN CN201811089194.1A patent/CN109026361A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201610786U (en) * | 2010-02-02 | 2010-10-20 | 高密市天缘精密机械制造有限公司 | Gland cover of turbo-charger |
| CN104594961A (en) * | 2014-04-24 | 2015-05-06 | 宁波摩多汽车零部件有限公司 | Gas compressor end sealing structure of turbocharger |
| CN205101283U (en) * | 2015-10-28 | 2016-03-23 | 长城汽车股份有限公司 | Turbo charger's compressor end seal structure , turbo charger and car |
| CN209671071U (en) * | 2018-09-18 | 2019-11-22 | 湖南天雁机械有限责任公司 | A kind of New type gland cover used in turbocharger |
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