CN101956624A - Engine cylinder cover for combustion development - Google Patents
Engine cylinder cover for combustion development Download PDFInfo
- Publication number
- CN101956624A CN101956624A CN 201010289283 CN201010289283A CN101956624A CN 101956624 A CN101956624 A CN 101956624A CN 201010289283 CN201010289283 CN 201010289283 CN 201010289283 A CN201010289283 A CN 201010289283A CN 101956624 A CN101956624 A CN 101956624A
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- copper sheathing
- hole
- mounting hole
- cylinder cover
- cylinder
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to an engine cylinder cover for combustion development at the combustion development experiment stage of an automobile engine. The engine cylinder cover comprises a cylinder cover and a cylinder hood fixed on the top of the cylinder cover, wherein the cylinder cover is provided with first and second mounting holes for communicating a return oil cavity and a cooling water passage and communicating the cooling water passage and a combustion chamber; and copper sleeves are arranged in the mounting holes. Cylinder pressure sensors are arranged at the lower ends of the copper sleeves so that the cylinder pressure sensors are arranged in the combustion chamber of the cylinder cover; and the cylinder cover does not leak air, water and oil.
Description
Technical field
The present invention relates to the cylinder head of the parts of motor car engine, particularly motor car engine.
Background technique
Motor car engine need be gathered firing pressure data in the head combustion chamber in the burning exploitation experimental stage in the development process.The cylinder pressure sensor that is mounted on the spark plug that generally adopts carries out the collection of firing pressure data at present, because plug ignition and pressure acquisition are influential mutually, so the cylinder of measuring presses data precision limited in this way, has certain narrow limitation.
The mode of relatively tending to adopt now on cylinder head punching that cylinder pressure sensor is installed is gathered the firing pressure data in the firing chamber, but because offer spark-plug hole in the cylinder head, the auxiliary hole that shakes out, oil back chamber, cooling water channel and firing chamber, high temperature and high pressure gas is arranged in the firing chamber, high-temperature water is arranged in the cooling water channel, high temperature oil is arranged in the oil back chamber, be subjected to the influence of air cylinder head structure, after cylinder pressure sensor was installed in punching on the cylinder head, cylinder head leaked air easily, leaks and the situation of leakage of oil.
Summary of the invention
The purpose of this invention is to provide a kind of engine cylinder cap of the exploitation that is used to burn, cylinder pressure sensor can be arranged in the head combustion chamber, and cylinder head can not leak air, leak and the situation of leakage of oil.
The engine cylinder cap of the exploitation that is used to burn of the present invention, comprise cylinder head and the cylinder cover that is fixed on its top, on cylinder head, offer spark-plug hole, the auxiliary hole that shakes out, oil back chamber and cooling water channel, offer the firing chamber in the cylinder head bottom, on cylinder head, offer first mounting hole and second mounting hole, first mounting hole site is in spark-plug hole and shake out between the auxiliary hole, oil back chamber and cooling water channel are communicated with, second mounting hole is a step hole, it is communicated with cooling water channel with the firing chamber, first mounting hole and the second mounting hole coaxial line; Copper sheathing outside in first mounting hole, being equipped with, the outer copper sheathing and the first mounting hole interference fit, be connected with interior copper sheathing outside in the copper sheathing, the axle center hole of interior copper sheathing is a step hole, its lower end aperture is a tapped hole, and the lower end of interior copper sheathing is arranged in second mounting hole, and its lower end surface and the second mounting hole step end face are fitted; On cylinder cover, offer suppending hole, the suppending hole and the first mounting hole coaxial line, be provided with last copper sheathing in the suppending hole with the suppending hole Spielpassung, the upper end of last copper sheathing is provided with flange, last copper sheathing is suspended on the cylinder cover by this flange, the lower end of last copper sheathing is positioned at the upper end of copper sheathing, and is provided with seal ring between the internal surface of the outer surface of last copper sheathing and interior copper sheathing.
With cylinder pressure sensor spin be fixed in the tapped hole of copper sheathing lower end, thereby cylinder pressure sensor is arranged in the head combustion chamber, cylinder pressure sensor stops up interior copper sheathing lower end simultaneously, can avoid the high-temperature gas in the firing chamber to leak into outside the cylinder cover by interior copper sheathing and last copper sheathing.Last copper sheathing and cylinder cover suppending hole Spielpassung can be eliminated the error of component when machine adds and assemble.
Because the copper material material is softer and thermal expansion coefficient is higher,, satisfy the sealing requirements of cylinder head so outer copper sheathing, interior copper sheathing and last copper sheathing employing copper material can guarantee the interference fit with cylinder head under the prerequisite of not damaging cylinder head.
The interference fit of the outer copper sheathing and first mounting hole, spinning between outer copper sheathing and the interior copper sheathing, the applying of the lower end surface of interior copper sheathing and the second mounting hole step end face, and go up copper sheathing and be suspended on the cylinder cover by flange, all can effectively avoid cylinder head gas leakage, leak and leakage of oil.
Scribble sealer between the copper sheathing and first mounting hole outside, can make the sealing between outer copper sheathing and the cylinder head more reliable, avoid the mutual seepage of high temperature oil and high-temperature water between oil back chamber and the cooling water channel.
Outer copper sheathing and interior copper sheathing spin by fine thread, scribble screw-threaded coupling glue between the screw thread, can make the sealing between outer copper sheathing and the interior copper sheathing more reliable, avoid the mutual seepage of high temperature oil and high-temperature water between oil back chamber and the cooling water channel equally.
The flange end face of last copper sheathing and cylinder cover are fitted, and scribble sealer between flange end face and the cylinder cover, can avoid the high temperature oil in the oil back chamber to spill outside the cylinder cover.
The present invention is owing to have this kind structure, can adopt existing finished product cylinder head to process and press-fits copper sheathing, do not need special cylinder head, and the cylinder head in the development experiments that can well guarantee to burn is its original state.Utilize the assembling Placement of screw thread, interference, gluing can guarantee reliable sealing between the component, make cylinder head can not leak air, leak and the situation of leakage of oil.And cylinder pressure sensor can be arranged in the correct position in the head combustion chamber, can well respond to signal, particularly detonation signal in the firing chamber.
Description of drawings
Now in conjunction with the accompanying drawings the present invention is described in further detail.
Fig. 1 looks generalized section for the master of the engine cylinder cap of the exploitation that is used to burn of the present invention.
Fig. 2 is the main pseudosection of outer copper sheathing.
Fig. 3 is the main pseudosection of last copper sheathing.
Fig. 4 is the main pseudosection of interior copper sheathing.
Embodiment
As shown in Figures 1 to 4, this engine cylinder cap of developing that is used to burn comprises cylinder head 1 and the cylinder cover 6 that is fixed on its top, on cylinder head 1, offer spark-plug hole, the auxiliary hole that shakes out, oil back chamber 8 and cooling water channel 10, offer firing chamber 12 in cylinder head 1 bottom.
Offer first mounting hole 2 and second mounting hole, 11, the first mounting holes 2 in spark-plug hole and shake out between the auxiliary hole on cylinder head 1, oil back chamber 8 and cooling water channel 10 are communicated with, its shaft axis is by near 12 centers, firing chamber; Second mounting hole 11 is a step hole, and it is communicated with cooling water channel 10 with firing chamber 12, first mounting hole 2 and second mounting hole, 11 coaxial lines.Copper sheathing 9 outside in first mounting hole 2, being equipped with, outer copper sheathing 9 and first mounting hole, 2 interference fit, and scribble sealer between copper sheathing 9 and first mounting hole 2 outside.Copper sheathing 3 in being connected with in the copper sheathing 9 outside, outer copper sheathing 9 and interior copper sheathing 3 spin by fine thread, scribble screw-threaded coupling glue between the screw thread, the axle center hole of interior copper sheathing 3 is a step hole, its lower end aperture is a tapped hole, and the lower end of interior copper sheathing 3 is arranged in second mounting hole 11, and its lower end surface and second mounting hole, 11 step end faces fit tightly.
On cylinder cover 6, offer suppending hole 5, suppending hole 5 and first mounting hole, 2 coaxial lines, be provided with last copper sheathing 7 in the suppending hole 5 with suppending hole 5 Spielpassung, the upper end of last copper sheathing 7 is provided with flange 13, last copper sheathing 7 is suspended on the cylinder cover 6 by this flange 13, scribbles sealer and applying mutually between flange 13 end faces and the cylinder cover 6.The lower end of last copper sheathing 7 is positioned at the upper end of copper sheathing 3, and is provided with O RunddichtringO 4 between the internal surface of the outer surface of last copper sheathing 7 and interior copper sheathing 3.
Claims (4)
1. engine cylinder cap of exploitation that is used to burn, comprise cylinder head (1) and be fixed on the cylinder cover (6) at its top, on cylinder head, offer spark-plug hole, auxiliary hole shakes out, oil back chamber (8) and cooling water channel (10), offer firing chamber (12) in the cylinder head bottom, it is characterized in that: on cylinder head, offer first mounting hole (2) and second mounting hole (11), first mounting hole site is in spark-plug hole and shake out between the auxiliary hole, oil back chamber and cooling water channel are communicated with, second mounting hole is a step hole, it is communicated with cooling water channel with the firing chamber, first mounting hole and the second mounting hole coaxial line; Copper sheathing (9) outside in first mounting hole, being equipped with, the outer copper sheathing and the first mounting hole interference fit, be connected with interior copper sheathing (3) outside in the copper sheathing, the axle center hole of interior copper sheathing is a step hole, its lower end aperture is a tapped hole, and the lower end of interior copper sheathing is arranged in second mounting hole, and its lower end surface and the second mounting hole step end face are fitted; On cylinder cover, offer suppending hole (5), the suppending hole and the first mounting hole coaxial line, be provided with last copper sheathing (7) in the suppending hole with the suppending hole Spielpassung, the upper end of last copper sheathing is provided with flange (13), last copper sheathing is suspended on the cylinder cover by this flange, the lower end of last copper sheathing is positioned at the upper end of copper sheathing, and is provided with seal ring (4) between the internal surface of the outer surface of last copper sheathing and interior copper sheathing.
2. according to the engine cylinder cap of the described exploitation that is used to burn of claim 1, it is characterized in that: scribble sealer between copper sheathing (9) and first mounting hole (2) outside.
3. according to the engine cylinder cap of the described exploitation that is used to burn of claim 1, it is characterized in that: outer copper sheathing (9) spins by fine thread with interior copper sheathing (3), scribbles screw-threaded coupling glue between the screw thread.
4. according to the engine cylinder cap of the described exploitation that is used to burn of claim 1, it is characterized in that: go up flange (13) end face and cylinder cover (6) applying of copper sheathing, scribble sealer between flange end face and the cylinder cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010289283 CN101956624A (en) | 2010-09-25 | 2010-09-25 | Engine cylinder cover for combustion development |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010289283 CN101956624A (en) | 2010-09-25 | 2010-09-25 | Engine cylinder cover for combustion development |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101956624A true CN101956624A (en) | 2011-01-26 |
Family
ID=43484176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010289283 Pending CN101956624A (en) | 2010-09-25 | 2010-09-25 | Engine cylinder cover for combustion development |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101956624A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353415A (en) * | 2011-06-08 | 2012-02-15 | 合肥工业大学 | Quick plugging device of cylinder cover combustion chamber |
| CN103447755A (en) * | 2012-05-30 | 2013-12-18 | 安徽华菱汽车有限公司 | Cylinder cover and machining method thereof |
| KR20150045517A (en) * | 2012-08-31 | 2015-04-28 | 캐터필라 모토렌 게엠베하 운트 코. 카게 | Cylinder head with sensor sleeve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109550A (en) * | 1994-04-02 | 1995-10-04 | 杭州汽车发动机厂 | Small cylinder diameter water cooling high speed direct jet diesel engine |
| DE19959951A1 (en) * | 1998-12-18 | 2000-06-29 | Nissan Motor | Otto engine with direct fuel injection has fuel injection valve with seal, cooled by coolant water coming from outlet in cylinder seal |
| JP2002188547A (en) * | 2000-12-20 | 2002-07-05 | Mitsubishi Heavy Ind Ltd | Structure and method for mounting seal tube |
| CN2695939Y (en) * | 2004-05-21 | 2005-04-27 | 上海柴油机股份有限公司 | Built-in type mounting device for diesel engine cylinder pressure sensor |
| CN201554568U (en) * | 2009-11-06 | 2010-08-18 | 东莞市康达机电工程有限公司 | Cylinder lid for gas engine |
-
2010
- 2010-09-25 CN CN 201010289283 patent/CN101956624A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109550A (en) * | 1994-04-02 | 1995-10-04 | 杭州汽车发动机厂 | Small cylinder diameter water cooling high speed direct jet diesel engine |
| DE19959951A1 (en) * | 1998-12-18 | 2000-06-29 | Nissan Motor | Otto engine with direct fuel injection has fuel injection valve with seal, cooled by coolant water coming from outlet in cylinder seal |
| JP2002188547A (en) * | 2000-12-20 | 2002-07-05 | Mitsubishi Heavy Ind Ltd | Structure and method for mounting seal tube |
| CN2695939Y (en) * | 2004-05-21 | 2005-04-27 | 上海柴油机股份有限公司 | Built-in type mounting device for diesel engine cylinder pressure sensor |
| CN201554568U (en) * | 2009-11-06 | 2010-08-18 | 东莞市康达机电工程有限公司 | Cylinder lid for gas engine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353415A (en) * | 2011-06-08 | 2012-02-15 | 合肥工业大学 | Quick plugging device of cylinder cover combustion chamber |
| CN102353415B (en) * | 2011-06-08 | 2012-11-21 | 合肥工业大学 | Quick plugging device of cylinder cover combustion chamber |
| CN103447755A (en) * | 2012-05-30 | 2013-12-18 | 安徽华菱汽车有限公司 | Cylinder cover and machining method thereof |
| KR20150045517A (en) * | 2012-08-31 | 2015-04-28 | 캐터필라 모토렌 게엠베하 운트 코. 카게 | Cylinder head with sensor sleeve |
| CN104603422A (en) * | 2012-08-31 | 2015-05-06 | 卡特彼勒发动机有限责任两合公司 | Cylinder head with sensor sleeve |
| US9695774B2 (en) | 2012-08-31 | 2017-07-04 | Caterpillar Motoren Gmbh & Co. Kg | Cylinder head with sensor sleeve |
| KR102134215B1 (en) | 2012-08-31 | 2020-07-15 | 캐터필라 모토렌 게엠베하 운트 코. 카게 | Cylinder head with sensor sleeve |
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| PB01 | Publication | ||
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Application publication date: 20110126 |