CN205824166U - A kind of EGR parts air tightness test seal head - Google Patents
A kind of EGR parts air tightness test seal head Download PDFInfo
- Publication number
- CN205824166U CN205824166U CN201620653186.5U CN201620653186U CN205824166U CN 205824166 U CN205824166 U CN 205824166U CN 201620653186 U CN201620653186 U CN 201620653186U CN 205824166 U CN205824166 U CN 205824166U
- Authority
- CN
- China
- Prior art keywords
- seal head
- head body
- air tightness
- seal
- egr
- 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 - Fee Related
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
This utility model relates to a kind of EGR parts air tightness test seal head, including seal head body, seal groove, positioning step hole and test gas passage；Seal groove is positioned at the upper surface of seal head body, and positioning step hole is positioned at the two ends of seal head body；The air inlet of test gas passage is positioned at the side of seal head body, and the gas outlet of test gas passage is positioned at the upper surface of seal head body.Above-mentioned seal head, according to the shape of part to be checked, uses the method for designing of modular, i.e. improves the detection efficiency of testboard, ensures again detection process air-tightness.
Description
Technical field
This utility model relates to EGR parts air-leakage test technical field, is specifically related to a kind of EGR parts air tightness test
Use seal head.
Background technology
The diesel engine of Abroad in Recent Years is increasingly employed egr system, European most direct injection and non-direct injection
LD-diesel all uses EGR to reduce NOx emission.Particularly in large diesel engine, along with countries in the world are for heavy bavin
Oil machine is put into effect and is made tightened up NOx emission standard, and EGR technology has become the indispensable technology controlling Diesel NOx discharge, its
Operation principle is: burns in being introduced into a part of waste gas after trachea mixes with fresh charge entering cylinder, thus realizes waste gas
Recirculation.
EGR parts typically use the mode of casting to produce, and the height of its air-tightness directly influences the property of egr system
Energy.Current most of manufacturer all can carry out air-leakage test before product export to EGR parts, but lacks special on market
EGR parts air tightness detection equipment, cause that EGR parts air-leakage test efficiency is the lowest, effect is the most poor, it is impossible to meet
Produce and need.
It is to use special EGR parts air tightness test platform for the current more satisfactory Most solutions of the problems referred to above, but
Improve the detection efficiency of testboard the most further and ensure that detection process air-tightness is that issues that need special attention is presently required.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, the EGR portion that this utility model provides
Part air tightness test seal head, according to the shape of part to be checked, uses the method for designing of modular, i.e. improves testboard
Detection efficiency, ensures again detection process air-tightness.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of EGR parts air tightness test seals
Head, including seal head body, seal groove, positioning step hole and test gas passage；Described seal groove is positioned at the upper end of seal head body
In face, described positioning step hole is positioned at the two ends of seal head body；The air inlet of described test gas passage is positioned at seal head body
In side, the gas outlet of described test gas passage is positioned at the upper surface of seal head body.
Improving further as this utility model, described seal groove is annular succeeding vat.
Improving further as this utility model, the front end of described seal head body is provided with step.
Improving further as this utility model, described seal head body is rhombogen.
Due to the utilization of technique scheme, this utility model compared with prior art has the advantage that
The EGR parts air tightness test seal head of this utility model scheme, according to the shape of part to be checked, uses module
The method for designing of formula, i.e. improves the detection efficiency of testboard, ensures again detection process air-tightness.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings technical solutions of the utility model are described further:
Accompanying drawing 1 is the structural representation of this utility model EGR parts air tightness test seal head；
Accompanying drawing 2 is the sectional structure schematic diagram of this utility model EGR parts air tightness test seal head.
In figure: 1, seal head body；2, air inlet；3, positioning step hole；4, step；5, gas outlet；6, seal groove.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.
EGR parts air tightness test seal head as shown in Figure 1 to Figure 2, including seal head body 1, seal groove 6, location
Stepped hole 3 and test gas passage.The air inlet 2 of test gas passage is positioned at the side of seal head body, and its gas outlet 5 is positioned at
In the upper surface of seal head body.
First the opening of part to be measured is inserted in seal groove 6 during use, after part to be measured is clamped from top, pressure measurement gas
Body has air inlet 2 to enter inside parts to be measured through gas outlet 5.Seal groove 6 seals with the opening depended on pressure of part to be measured.
Seal groove 6 is annular succeeding vat, and its shape is consistent with the opening of part to be measured.
Below it is only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limit
System.All employing equivalents or equivalence are replaced and the technical scheme that formed, all fall within this utility model rights protection scope it
In.
Claims (4)
1. an EGR parts air tightness test seal head, including seal head body, it is characterised in that: also include seal groove, location
Stepped hole and test gas passage；Described seal groove is positioned at the upper surface of seal head body, and described positioning step hole is positioned at sealing
The two ends of head body；The air inlet of described test gas passage is positioned at the side of seal head body, going out of described test gas passage
QI KOU is positioned at the upper surface of seal head body.
EGR parts air tightness test seal head the most according to claim 1, it is characterised in that: described seal groove is ring
Shape succeeding vat.
EGR parts air tightness test seal head the most according to claim 1, it is characterised in that: described seal head body
Front end is provided with step.
EGR parts air tightness test seal head the most according to claim 1, it is characterised in that: described seal head body is
Rhombogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620653186.5U CN205824166U (en) | 2016-06-27 | 2016-06-27 | A kind of EGR parts air tightness test seal head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620653186.5U CN205824166U (en) | 2016-06-27 | 2016-06-27 | A kind of EGR parts air tightness test seal head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205824166U true CN205824166U (en) | 2016-12-21 |
Family
ID=58146818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620653186.5U Expired - Fee Related CN205824166U (en) | 2016-06-27 | 2016-06-27 | A kind of EGR parts air tightness test seal head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205824166U (en) |
-
2016
- 2016-06-27 CN CN201620653186.5U patent/CN205824166U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205330831U (en) | Internal -combustion engine EGR is system of spouting directly | |
| CN103742302A (en) | Egr mixer | |
| CN203627010U (en) | EGR (Exhaust Gas Recirculation) mixer | |
| CN202350987U (en) | Negative-pressure exhaust gas recycle (EGR) valve leakage detection craft equipment | |
| CN205824166U (en) | A kind of EGR parts air tightness test seal head | |
| CN205243684U (en) | Engine EGR system and car that has this engine EGR system | |
| CN103757679B (en) | A kind of all-aluminium piston top differential arc oxidation method | |
| CN203476553U (en) | Air inlet manifold structure | |
| CN205779496U (en) | A kind of tower reversed balancing flange | |
| CN205826210U (en) | A kind of EGR parts air tightness test push-down head | |
| CN205861286U (en) | A kind of EGR comprehensive base of parts air tightness test | |
| CN110426277A (en) | A kind of coiled pipe heat exchange module water pressure test high pressure sealing docking facilities | |
| CN203161379U (en) | Natural gas supply structure of oil-gas mixture dual-fuel engine | |
| CN201146170Y (en) | Automatic quicksilver-infusing device for energy-saving lamp pipe | |
| CN205064130U (en) | Mining explosion -proof automatically controlled EGR system | |
| CN207439615U (en) | The plugging device of engine cylinder cap oil duct leak test | |
| CN206756384U (en) | A kind of leakage tester elasticity closure | |
| CN207813794U (en) | A kind of supercharged engine inlet manifold | |
| CN205767580U (en) | Wind power cabin cover, kuppe vacuum import resin trap device | |
| CN205013152U (en) | Novel cycle of engine exhaust system | |
| CN206103677U (en) | Ozone body discharge system | |
| CN204405334U (en) | A kind of combustion system of engine constant current testing device | |
| CN206531617U (en) | A kind of engine cylinder-body water channel sealing detection frock | |
| CN205653411U (en) | Useless rubber cracking stove of environmental protection | |
| CN209639910U (en) | A kind of waterproof test equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20210627 |