CN105115669B - A kind of cylinder head fuel oil fuel feed hole leak test component and its leak testing process - Google Patents
A kind of cylinder head fuel oil fuel feed hole leak test component and its leak testing process Download PDFInfo
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- CN105115669B CN105115669B CN201510547175.9A CN201510547175A CN105115669B CN 105115669 B CN105115669 B CN 105115669B CN 201510547175 A CN201510547175 A CN 201510547175A CN 105115669 B CN105115669 B CN 105115669B
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Abstract
The invention discloses a kind of cylinder head fuel oil fuel feed hole leak test component and its leak testing process, it is characterized in that sealing-plug is threaded hole, sealing is cased with through hole and is installed to sealing-plug composition hole wall seal assembly, it is installed to that the power acted on by pull bar on hole wall seal assembly makes sealing gasket and sealing shroud acts on cylinder head fuel oil hole end surface and oil injector hole inwall forms confined space simultaneously in cylinder cap fuel injector the hole in, is then inputted by the through hole of pull bar and leak hunting air and be immersed in the air-tightness that the sealing plug for blocking spill port is detected in leak test liquid.Cylinder head fuel oil fuel feed hole oil leakage fault can be reduced, improves cylinder head product quality.
Description
Technical field
The invention belongs to engine art, particularly a kind of cylinder head fuel oil fuel feed hole leak test component and its leak testing process.
Background technology
Cylinder head fuel oil fuel feed hole communicates with oil injector hole, spill port, and fuel hole leak test has leak test hardly possible, spill port always
Oil leakage fault；Poorly sealed quality problems be present after effectively solving sealing plug installation.
The content of the invention
A kind of the defects of present invention is to overcome above-mentioned prior art, there is provided leak test of the spill port of fuel oil fuel feed hole
Component and leak testing process, hole wall seal assembly are inserted in cylinder cap fuel injector hole, hole end surface seal assembly insertion fuel oil fuel feed hole
It is interior.Then, lead to rotating rod, hole wall seal assembly is formed confined space by the active force of pull bar, lead in the through hole of pull bar
Enter the gas tightness of compressed air detection sealing plug, last releasing lever takes out hole wall seal assembly, hole end surface sealing respectively
Component completes leak test, can effectively solve the problems, such as three through hole leak test difficulties, reduces the risk of cylinder head oil leak.
The technical solution of the present invention is a kind of such, cylinder head fuel oil fuel feed hole leak test component, including sealing-plug,
Sealing shroud, oil injector hole, sealing plug, spill port, fuel oil fuel feed hole, sealing gasket, pull bar, cylinder head, screw, hole wall sealing group
Part, hole end surface seal assembly, it is characterised in that the end circle external diameter greatly of sealing-plug 1 is cased with sealing shroud 2, and sealing-plug 1, sealing shroud 2 form
Hole wall seal assembly 12, hole wall seal assembly 12 is installed forms hole end surface seal assembly into oil injector hole 3, pull bar 8, sealing gasket 7
78, hole end surface seal assembly 78 is installed into fuel oil fuel feed hole 6, fuel oil fuel feed hole 6 with spill port 5 is perpendicular communicates, sealing plug 4
Installed in the port of spill port 5, screw 10 installs the mounting hole into cylinder head 9, and the top of screw 10 is passed into spill port 5 and communicated, hole
Face seal components 78 stretch into from fuel oil fuel feed hole 6, the termination loading hole wall seal assembly 12 of hole end surface seal assembly 78, and with
Installation counterbore radially is perpendicular, and oil injector hole 3 and fuel oil fuel feed hole 6 are perpendicular to be communicated and installed into tee T, sealing gasket 7
It is inner towards on the port step circular hole of fuel oil fuel feed hole 6 in hole end surface seal assembly 78, sealing shroud 2 in the end circle greatly of sealing-plug 1 extremely
Between oil injector hole 3, sealing shroud 2 radially has through hole.
Inner face installation sealing gasket 7, the hole end surface seal assembly 78 of pull bar 8, sealing shroud 2 are arranged on sealing-plug 1 and form hole
Wall seal assembly 12, hole wall seal assembly 12 are arranged in oil injector hole 3, and hole end surface seal assembly 78 is axially mounted to fuel oil and entered
Oilhole 6, the top opening of spill port 5 installation sealing plug 4, hole wall seal assembly 12, the combination of hole end surface seal assembly 78 form leak test group
Part.
Sealing-plug 1, sealing shroud 2 and cylinder cap fuel injector hole 3 coordinate, and pull bar 8, sealing gasket 7 and fuel oil fuel feed hole 6 form end
Face seals.
Screw 10 is arranged on cylinder head 9, the tip contact of screw 10 to spill port 5.
Sealing-plug 1 is threaded hole, and sealing shroud 2 is by through hole and is installed to sealing-plug 1 and forms hole wall seal assembly 12, and
It is installed in oil injector hole 3.
Using following installation method：
Step 1, hole wall seal assembly 12 is installed into cylinder head perpendicular to cylinder cap fuel injector hole 3, hole wall seal assembly 12
In oil injector hole 3.
Step 2, sealing gasket 7 installs pull bar 8, and is installed into cylinder head fuel oil fuel feed hole 6.
Step 3, hole wall seal assembly 12 is acted on by pull bar 8, fuel oil fuel feed hole 6 forms a confined space, passed through
The through hole input of pull bar 8, which is leaked hunting, air and is immersed in the liquid that leaks hunting observation sealing plug 4.
Step 4, the power acted on by releasing lever 8 on hole wall seal assembly 12, take out respectively hole wall seal assembly 12,
Hole end surface seal assembly 78, complete leak test.
Step 5, sealing plug 4 is arranged on spill port 5, and spill port 5 communicates with the square crossing of fuel oil fuel feed hole 6.
Compared with prior art, the present invention has the advantages that：Reduce cylinder head oil and return the sealing of hole sealing plug not
Oil leakage fault caused by tight, so as to improve product quality.
Brief description of the drawings
Fig. 1-1, Fig. 1-2, Fig. 1-3 are the overall process process route schematic cross-sectional views of the present invention.
Fig. 2 is the plug construction schematic diagram of the present invention.
Fig. 3 is the sealing shroud structural representation of the present invention.
Fig. 4 is the drawbar structure diagram of the present invention.
Fig. 5 is the gasket structure schematic diagram of the present invention.
Fig. 6 is the cylinder head internal structure sectional view of the present invention.
Reference：Sealing-plug 1, sealing shroud 2, oil injector hole 3, sealing plug 4, spill port 5, fuel oil fuel feed hole 6, sealing
Pad 7, pull bar 8, cylinder head 9, screw 10, hole wall seal assembly 12, hole end surface seal assembly 78.
Embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is described in detail, it is to be understood that of the invention
Protection domain do not limited by embodiment.
Embodiment 1, referring to the drawings, sealing-plug 1, sealing shroud 2 are less than the aperture of oil injector hole 3.Sealing-plug 1 has matches somebody with somebody with pull bar 8
The screwed hole of conjunction.Sealing gasket 7 is more than the end face of fuel oil fuel feed hole 6, and pull bar 8 has through hole, and cylinder head 9 has mounting hole mounting screw 10,
The through hole of mounting screw 10 communicates with fuel oil fuel feed hole 6.The installation of sealing shroud 2 is inserted in oil injector hole 3 again after being inserted in sealing-plug 1,
Its external diameter forms sealing surface with oil injector hole 3, and sealing gasket 7 is inserted in after the inner face of pull bar 8, and pull bar 8 is inserted in fuel oil fuel feed hole 6,
The outer stomidium of sealing gasket 7 and fuel oil fuel feed hole 6 forms sealing surface.
Embodiment 2, a kind of cylinder head fuel oil fuel feed hole leak test component, including sealing-plug, sealing shroud, oil injector hole, sealing
Plug screw, spill port, fuel oil fuel feed hole, sealing gasket, pull bar, cylinder head, screw, hole wall seal assembly, hole end surface seal assembly, its
It is characterised by that the end circle external diameter greatly of sealing-plug 1 is cased with sealing shroud 2, sealing-plug 1, sealing shroud 2 form hole wall seal assembly 12, and hole wall is close
Sealing assembly 12 is installed forms hole end surface seal assembly 78 into oil injector hole 3, pull bar 8, sealing gasket 7, and hole end surface seal assembly 78 is pacified
Load fuel oil fuel feed hole 6, fuel oil fuel feed hole 6 with spill port 5 is perpendicular communicates, sealing plug 4 is arranged on the port of spill port 5, spiral shell
Nail 10 installs the mounting hole into cylinder head 9, and the top of screw 10 is passed into spill port 5 and communicated, and hole end surface seal assembly 78 is from fuel oil
Fuel feed hole 6 stretches into, and the termination of hole end surface seal assembly 78 loads hole wall seal assembly 12, and is mutually hung down with installation counterbore radially
Directly, oil injector hole 3 and fuel oil fuel feed hole 6 are perpendicular communicates and is arranged on into tee T, sealing gasket 7 in hole end surface seal assembly 78
End face on the port step circular hole of fuel oil fuel feed hole 6, sealing shroud 2 in the end circle greatly of sealing-plug 1 between oil injector hole 3, sealing shroud 2
Radially there is through hole.Inner face installation sealing gasket 7, the hole end surface seal assembly 78 of pull bar 8, sealing shroud 2 are arranged on 1 group of sealing-plug
Into hole wall seal assembly 12, hole wall seal assembly 12 is arranged in oil injector hole 3, and hole end surface seal assembly 78 is axially mounted to fire
Oily fuel feed hole 6, the top opening of spill port 5 installation sealing plug 4, hole wall seal assembly 12, the combination of hole end surface seal assembly 78 form examination
Leak component.
Sealing-plug 1, sealing shroud 2 and cylinder cap fuel injector hole 3 coordinate, and pull bar 8, sealing gasket 7 and fuel oil fuel feed hole 6 form end
Face seals.Screw 10 is arranged on cylinder head 9, the tip contact of screw 10 to spill port 5.
Sealing-plug 1 is threaded hole, and sealing shroud 2 is by through hole and is installed to sealing-plug 1 and forms hole wall seal assembly 12, and
It is installed in oil injector hole 3.
Using following installation method：
Step 1, hole wall seal assembly 12 is installed into cylinder head perpendicular to cylinder cap fuel injector hole 3, hole wall seal assembly 12
In oil injector hole 3.
Step 2, sealing gasket 7 installs pull bar 8, and is installed into cylinder head fuel oil fuel feed hole 6.
Step 3, hole wall seal assembly 12 is acted on by pull bar 8, fuel oil fuel feed hole 6 forms a confined space, passed through
The through hole input of pull bar 8, which is leaked hunting, air and is immersed in the liquid that leaks hunting observation sealing plug 4.
Step 4, the power acted on by releasing lever 8 on hole wall seal assembly 12, take out respectively hole wall seal assembly 12,
Hole end surface seal assembly 78, complete leak test.
Step 5, sealing plug 4 is arranged on spill port 5, and spill port 5 communicates with the square crossing of fuel oil fuel feed hole 6.
The fuel oil fuel feed hole spill port leak testing process of the present invention, effectively solve fuel injector installation bottom outlet sealing ring side, cut
Side phenomenon, improve product quality；Solves the work effect of the damage of part opponent and raising worker when worker single-handedly installs sealing ring
Rate.
Disclosed above is only the specific embodiment of the present invention, and still, the present invention is not limited to this, any ability
What the technical staff in domain can think change should all fall into protection scope of the present invention.
Claims (6)
1. a kind of cylinder head fuel oil fuel feed hole leak test component, including sealing-plug, sealing shroud, oil injector hole, sealing plug, oil return
Hole, fuel oil fuel feed hole, sealing gasket, pull bar, cylinder head, screw, hole wall seal assembly, hole end surface seal assembly, it is characterised in that
Sealing-plug（1）Big end circle external diameter is cased with sealing shroud（2）, sealing-plug（1）, sealing shroud（2）Form hole wall seal assembly（12）, hole wall
Seal assembly（12）Install into oil injector hole（3）, pull bar（8）, sealing gasket（7）Form hole end surface seal assembly（78）, hole end surface
Seal assembly（78）Install into fuel oil fuel feed hole（6）, fuel oil fuel feed hole（6）With spill port（5）It is perpendicular to communicate, sealing plug
（4）Installed in spill port（5）Port, screw（10）Install into cylinder head（9）Mounting hole, screw（10）Top is passed into oil return
Hole（5）Communicate, hole end surface seal assembly（78）From fuel oil fuel feed hole（6）Stretch into, hole end surface seal assembly（78）Termination load
Hole wall seal assembly（12）And, oil injector hole perpendicular with installation counterbore radially（3）With fuel oil fuel feed hole（6）Perpendicular phase
It is logical and into tee T, sealing gasket（7）Installed in hole end surface seal assembly（78）It is inner towards fuel oil fuel feed hole（6）Port step is justified
Kong Shang, sealing shroud（2）In sealing-plug（1）Big end is round to oil injector hole（3）Between, sealing shroud（2）Radially there is through hole.
2. according to a kind of cylinder head fuel oil fuel feed hole leak test component described in claim 1, it is characterised in that pull bar（8）The inner
Face is installed by sealing gasket（7）, hole end surface seal assembly（78）, sealing shroud（2）Installed in sealing-plug（1）Form hole wall seal assembly
（12）, hole wall seal assembly（12）Installed in oil injector hole（3）It is interior, hole end surface seal assembly（78）It is axially mounted to fuel oil oil-feed
Hole（6）, spill port（5）Top opening installs sealing plug（4）, hole wall seal assembly（12）, hole end surface seal assembly（78）Combine shape
Into leak test component.
3. according to a kind of cylinder head fuel oil fuel feed hole leak test component described in claim 1, it is characterised in that sealing-plug（1）, it is close
Big envelope（2）With cylinder cap fuel injector hole（3）Coordinate, pull bar（8）, sealing gasket（7）With fuel oil fuel feed hole（6）Form end face seal.
4. according to a kind of cylinder head fuel oil fuel feed hole leak test component described in claim 1, it is characterised in that screw（10）Installation
In cylinder head（9）, screw（10）Tip contact is to spill port（5）.
5. according to a kind of cylinder head fuel oil fuel feed hole leak test component described in claim 1, it is characterised in that sealing-plug（1）Processing
There are screwed hole, sealing shroud（2）There is through hole and be installed to sealing-plug（1）Form hole wall seal assembly（12）, and it is installed to fuel injector
Hole（3）It is interior.
6. according to a kind of leak testing process of cylinder head fuel oil fuel feed hole leak test component described in claim 1, it is characterised in that adopt
With following installation method：
Step 1, hole wall seal assembly（12）Perpendicular to cylinder cap fuel injector hole（3）, hole wall seal assembly（12）Install into cylinder
Lid oil injector hole（3）；
Step 2, sealing gasket（7）Pull bar is installed（8）, and it is installed into cylinder head fuel oil fuel feed hole（6）It is interior；
Step 3, pull bar is passed through（8）Act on hole wall seal assembly（12）, fuel oil fuel feed hole（6）A confined space is formed, is led to
Cross pull bar（8）Through hole input leak hunting and air and be immersed in the liquid that leaks hunting and observe sealing plug（4）；
Step 4, releasing lever is passed through（8）Act on hole wall seal assembly（12）On power, respectively take out hole wall seal assembly
（12）, hole end surface seal assembly（78）, complete leak test；
Step 5, sealing plug（4）Installed in spill port（5）, spill port（5）With fuel oil fuel feed hole（6）Square crossing communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510547175.9A CN105115669B (en) | 2015-08-31 | 2015-08-31 | A kind of cylinder head fuel oil fuel feed hole leak test component and its leak testing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510547175.9A CN105115669B (en) | 2015-08-31 | 2015-08-31 | A kind of cylinder head fuel oil fuel feed hole leak test component and its leak testing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105115669A CN105115669A (en) | 2015-12-02 |
| CN105115669B true CN105115669B (en) | 2017-12-05 |
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| CN201510547175.9A Active CN105115669B (en) | 2015-08-31 | 2015-08-31 | A kind of cylinder head fuel oil fuel feed hole leak test component and its leak testing process |
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| CN101556202A (en) * | 2008-04-11 | 2009-10-14 | 广西玉柴机器股份有限公司 | Copper bush simulation testing device of oil injector hole of diesel engine cylinder cover and testing method thereof |
| CN103512709A (en) * | 2012-06-26 | 2014-01-15 | 广西玉柴机器股份有限公司 | Engine cylinder hole water chamber leakage testing sealing device |
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| JP2004132809A (en) * | 2002-10-10 | 2004-04-30 | Ing Corporation:Kk | Small-amount leakage detection system |
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| CN101556202A (en) * | 2008-04-11 | 2009-10-14 | 广西玉柴机器股份有限公司 | Copper bush simulation testing device of oil injector hole of diesel engine cylinder cover and testing method thereof |
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| CN203404369U (en) * | 2013-08-05 | 2014-01-22 | 上海希力自动化设备有限公司 | Plugging device used for leakage test of air impermeability of engine cylinder cover oil duct inclined oil port |
| CN203688163U (en) * | 2013-12-31 | 2014-07-02 | 浙江吉利控股集团有限公司 | Leakage-testing sealing device of engine cylinder cover VVT valve hole |
| CN204064587U (en) * | 2014-06-19 | 2014-12-31 | 佛山市美的清湖净水设备有限公司 | Sealing connection device of tubular part, tubular assembly and gas leakage detection system |
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| CN105115669A (en) | 2015-12-02 |
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