CN205958208U - Engine combustion chamber gas tightness detection device - Google Patents
Engine combustion chamber gas tightness detection device Download PDFInfo
- Publication number
- CN205958208U CN205958208U CN201620807638.0U CN201620807638U CN205958208U CN 205958208 U CN205958208 U CN 205958208U CN 201620807638 U CN201620807638 U CN 201620807638U CN 205958208 U CN205958208 U CN 205958208U
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- pipe
- steel pipe
- tee
- detection device
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Abstract
The utility model discloses an engine combustion chamber gas tightness detection device, including tee pipe coupling, first intake pipe, second intake pipe and manometer pipeline, a tee pipe coupling side and an intake -tube connection, first intake pipe includes first steel pipe, ball valve and the second steel pipe that concatenates in proper order, and first steel pipe one end is connected with the tee pipe coupling side, and second steel pipe one end is passed through the pipeline and is connected with the compressed air air supply, tee pipe coupling upper end and manometer tube coupling, manometer pipeline include third steel pipe, return bend and manometer, and third steel pipe lower extreme is connected with the tee pipe coupling upper end, is connected with the return bend lower extreme on the third steel pipe, is connected with the manometer on the return bend, tee pipe coupling lower extreme and second intake pipe upper end is connected, and second intake pipe lower extreme is connected with the engine combustion chamber. The utility model discloses simple structure, it is with low costs, operation convenient to use, application scope is extensive, and the commonality is strong. Each junction good seal guarantees that the testing result is accurate, and the error is little.
Description
Technical field
This utility model is related to a kind of detection means, especially a kind of air-tightness detection device easy to use, belongs to inspection
Survey technical field of tools.
Background technology
Burning chamber of diesel engine is made up of piston, cylinder jacket, water jacket, flame ring, cylinder gasket and cylinder head, is ensureing to live
Under the premise of plug ring is unspoiled, diesel combustion chamber air-tightness is mainly determined by the air valve in cylinder head.Due to air valve and valve seat
Frustoconical bevel angle tolerance range is different, adds the mismachining tolerance that the course of processing produces, and leads to the two assembling rear cone angle often to differ
Cause, during assembling to after valve seat bevel still it cannot be guaranteed that the two frustoconical bevel angle completely the same it is therefore desirable to carry out to the two
Leak check.Air valve seat leakage inspection method is to be checked using blue oil at present, will be applied to air valve cone by blue oil
On face, roll a circle after then air valve and valve seat being assembled or pat valve seat, removing air valve using air valve, observe the valve seat conical surface
Blueing oil distribution situation, if valve seat blueing oil is evenly distributed, air valve is good with valve base sealing, thus the chamber air-tightness that burns is good
Good, but because blue oil oil film has certain thickness, inspection result is often not accurate, however it remains error.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, the inspection of testing result accurate engine combustion chamber air-tightness
Survey device.
This utility model is achieved by the following technical programs：
A kind of engine chamber air-tightness detection device, including tee pipe coupling, the first air inlet pipe, the second air inlet pipe and
Pressure gauge pipeline；Tee pipe coupling side is connected with the first air inlet pipe, and the first air inlet pipe includes the first steel pipe, ball valve and the second steel
Pipe, the first steel pipe, ball valve and the second steel pipe are sequentially connected in series, and first steel pipe one end is connected with tee pipe coupling side, the second steel pipe
One end is connected with compressed air gas source by pipeline；Tee pipe coupling upper end is connected with pressure gauge pipeline, and pressure gauge pipeline includes
3rd steel pipe, bend pipe and pressure gauge, the 3rd steel pipe lower end is connected with tee pipe coupling upper end, the 3rd steel pipe upper end and bend pipe lower end
Connect, bend pipe upper end is connected with pressure gauge；Tee pipe coupling lower end is connected with the second air inlet pipe upper end, the second air inlet pipe lower end with
Engine chamber connects.
The purpose of this utility model can also be realized further by following technical measures.
Aforesaid engine chamber air-tightness detection device, second wherein said steel pipe one end is provided with sebific duct clamp.
Aforesaid engine chamber air-tightness detection device, reduction nipple is passed through in the 3rd wherein said steel pipe upper end
It is connected with bend pipe lower end.
Aforesaid engine chamber air-tightness detection device, the second wherein said air inlet pipe lower end is provided with screw thread seat pipe
Joint, described threaded block pipe joint is connected with the indicator valve screw thread bore in engine chamber cylinder head.
Aforesaid engine chamber air-tightness detection device, wherein said compressed air gas source pressure limit is 0.6
～1.0MPa.
This utility model structure is simple, and low cost is easy for operation, is easy to carry.Using the detection of blue oil detection method
After air valve and valve seat air-tightness, using this utility model, diesel combustion chamber air-tightness is rechecked.During reinspection, remove diesel oil
Indicator valve in machine cylinder head, the threaded block pipe joint of the second air inlet pipe lower end is screwed in indicator valve screw thread bore, and will
Second steel pipe one end is connected with compressed air gas source by flexible pipe, and now combustor air inlet and exhaust valve is closed mode, opens ball
Valve, compressed air is filled with combustor by the first air inlet pipe and the second air inlet pipe, when pressure gauge reading is for 0.6MPa, rapidly
Close ball valve, and recording manometer reading, start simultaneously at timing, measurement pressure gauge reading is down to from 0.6MPa in seconds
0.5MPa required time, if the time is more than 10s, it is qualified to seal, and diesel combustion chamber air-tightness is good.This utility model is each
, it is ensured that testing result is accurate, error is little for junction good seal.Second air inlet pipe lower end can be equipped with multiple by reduction nipple
The threaded block pipe joint of specification, to meet multiple burning chamber of diesel engine airtight test needs, applied widely, versatility
By force.
Advantage of the present utility model and feature, conciliate carrying out diagram by the non-limitative illustration of preferred embodiment below
Release, these embodiments, be only used as example referring to the drawings and be given.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the left view of Fig. 1.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2, this utility model includes tee pipe coupling 1, the first air inlet pipe 2, the second air inlet pipe 3 and pressure
Power table pipeline 4.Tee pipe coupling 1 left end is connected with the first air inlet pipe 2, and the first air inlet pipe 2 includes the first steel pipe 21, ball valve 22 and
Second steel pipe 23, the first steel pipe 21, ball valve 22 and the second steel pipe 23 are sequentially connected in series by pipe joint 25, the first steel pipe 21 right-hand member with
Tee pipe coupling 1 left end connects, and the second steel pipe 23 left end is connected with compressed air gas source by pipeline, and the second steel pipe 23 left end sets
There is sebific duct clamp 24, be spare interface, snap joint can be connected or be directly connected with compressed air hose using corresponding flexible pipe, pressure
Contracting air bleed pressure scope is 0.6～1.0MPa.Tee pipe coupling 1 upper end is connected with pressure gauge pipeline 4, pressure gauge pipeline 4
Including the 3rd steel pipe 41, bend pipe 42 and pressure gauge 43, the 3rd steel pipe 41 lower end is connected with tee pipe coupling 1 upper end, the 3rd steel pipe
41 upper ends are connected with bend pipe 42 lower end by reduction nipple 44, and manometer tube joint 45 and pressure gauge 43 are passed through in bend pipe 42 upper end
Connect.Tee pipe coupling 1 lower end is connected with the second air inlet pipe 3 upper end, and the second air inlet pipe 3 is steel pipe, and the second air inlet pipe 3 lower end sets
There is threaded block pipe joint 31, threaded block pipe joint 31 is connected with the indicator valve screw thread bore in engine chamber cylinder head.
In addition to the implementation, this utility model can also have other embodiment, all employing equivalents or equivalent change
Change the technical scheme of formation, all fall within the protection domain of this utility model requirement.
Claims (5)
1. a kind of engine chamber air-tightness detection device it is characterised in that：Including tee pipe coupling, the first air inlet pipe,
Two air inlet pipe and pressure gauge pipeline；Tee pipe coupling side is connected with the first air inlet pipe, and the first air inlet pipe includes the first steel pipe, ball
Valve and the second steel pipe, the first steel pipe, ball valve and the second steel pipe are sequentially connected in series, and first steel pipe one end is with tee pipe coupling side even
Connect, second steel pipe one end is connected with compressed air gas source by pipeline；Tee pipe coupling upper end is connected with pressure gauge pipeline, pressure
Table pipeline includes the 3rd steel pipe, bend pipe and pressure gauge, and the 3rd steel pipe lower end is connected with tee pipe coupling upper end, the 3rd steel pipe upper end
It is connected with bend pipe lower end, bend pipe upper end is connected with pressure gauge；Tee pipe coupling lower end is connected with the second air inlet pipe upper end, and second enters
Trachea lower end is connected with engine chamber.
2. engine chamber air-tightness detection device as claimed in claim 1 it is characterised in that：Described second steel pipe one end
It is provided with sebific duct clamp.
3. engine chamber air-tightness detection device as claimed in claim 1 it is characterised in that：Described 3rd steel pipe upper end
It is connected with bend pipe lower end by reduction nipple.
4. engine chamber air-tightness detection device as claimed in claim 1 it is characterised in that：Under described second air inlet pipe
End is provided with threaded block pipe joint, and described threaded block pipe joint is connected with the indicator valve screw thread bore in engine chamber cylinder head
Connect.
5. engine chamber air-tightness detection device as claimed in claim 1 it is characterised in that：Described compressed air gas source
Pressure limit is 0.6～1.0MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620807638.0U CN205958208U (en) | 2016-07-29 | 2016-07-29 | Engine combustion chamber gas tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620807638.0U CN205958208U (en) | 2016-07-29 | 2016-07-29 | Engine combustion chamber gas tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205958208U true CN205958208U (en) | 2017-02-15 |
Family
ID=57973406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620807638.0U Active CN205958208U (en) | 2016-07-29 | 2016-07-29 | Engine combustion chamber gas tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205958208U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864851A (en) * | 2019-11-28 | 2020-03-06 | 广西玉柴机器股份有限公司 | Gas leakage area detection method for gas tightness of natural gas engine and joint assembly |
| CN114459701A (en) * | 2021-12-27 | 2022-05-10 | 宜昌测试技术研究所 | Unmanned navigation ware leakproofness inspection device under water |
-
2016
- 2016-07-29 CN CN201620807638.0U patent/CN205958208U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864851A (en) * | 2019-11-28 | 2020-03-06 | 广西玉柴机器股份有限公司 | Gas leakage area detection method for gas tightness of natural gas engine and joint assembly |
| CN114459701A (en) * | 2021-12-27 | 2022-05-10 | 宜昌测试技术研究所 | Unmanned navigation ware leakproofness inspection device under water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 212211 No. 402, Changjiang Road, Zhenjiang City, Jiangsu Province Patentee after: China Shipbuilding Power Zhenjiang Co.,Ltd. Address before: 402 Changjiang Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: CSSC MARINE POWER Co.,Ltd. |