CN102235932A - Internal combustion engine cylinder pressure sensor with metal ceramic electric heating body - Google Patents
Internal combustion engine cylinder pressure sensor with metal ceramic electric heating body Download PDFInfo
- Publication number
- CN102235932A CN102235932A CN 201010157831 CN201010157831A CN102235932A CN 102235932 A CN102235932 A CN 102235932A CN 201010157831 CN201010157831 CN 201010157831 CN 201010157831 A CN201010157831 A CN 201010157831A CN 102235932 A CN102235932 A CN 102235932A
- Authority
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- China
- Prior art keywords
- electric heating
- shell
- combustion engine
- internal combustion
- heating body
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- 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.)
- Granted
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- 238000005485 electric heating Methods 0.000 title claims abstract description 52
- 239000000919 ceramic Substances 0.000 title claims abstract description 26
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 19
- 239000002184 metal Substances 0.000 title abstract 6
- 238000009422 external insulation Methods 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 abstract description 5
- 239000007924 injection Substances 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 210000003050 axon Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- YXTPWUNVHCYOSP-UHFFFAOYSA-N bis($l^{2}-silanylidene)molybdenum Chemical compound [Si]=[Mo]=[Si] YXTPWUNVHCYOSP-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910021344 molybdenum silicide Inorganic materials 0.000 description 1
- UZLYXNNZYFBAQO-UHFFFAOYSA-N oxygen(2-);ytterbium(3+) Chemical compound [O-2].[O-2].[O-2].[Yb+3].[Yb+3] UZLYXNNZYFBAQO-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229940075624 ytterbium oxide Drugs 0.000 description 1
- 229910003454 ytterbium oxide Inorganic materials 0.000 description 1
Images
Abstract
The invention discloses an internal combustion engine cylinder pressure sensor with a metal ceramic electric heating body, and relates to the internal combustion engine cylinder pressure sensor. In order to solve the technical problem, the invention provides the internal combustion engine cylinder pressure sensor with the metal ceramic electric heating body, which can reduce the axial and transverse pressure signal interference of the electric heating body. The technical scheme is that: the sensor comprises a shell, the metal ceramic electric heating body, an electric heating body outer insulating layer, a flexible connecting piece, a connecting piece fixing ring, a pressure sensor, a sensor ring and an insulating ferrule, wherein the shell is arranged on an internal combustion engine shell; the metal ceramic electric heating body is arranged in a central hole of the shell; the flexible connecting piece is arranged between the electric heating body outer insulating layer and the shell; the insulating ferrule is arranged outside the end of the metal ceramic electric heating body; the sensor is annularly arranged between the shell and the insulating ferrule; and the pressure sensor is arranged in the sensor ring. The internal combustion engine cylinder pressure sensor is applied to an internal combustion engine electronic control fuel injection device and has the advantages that the accuracy of a pressure signal can be improved, and a flow dividing channel between the electric heating body and the shell cannot be formed.
Description
Technical field
Relate to a kind of Cylinder Pressure of Internal Combustion Engine sensor.
Background technology
The pressure-type Injection Turbo is extensive use of on internal combustion engine.The working pressure sensor is experienced the pressure in the cylinder in the fuel injection equipment (FIE), and pressure transducer comprises electric heating element, shell and pressure transducer; Electric heating element is contained on the shell, shell is contained on the internal combustion engine housing, and pressure transducer is connected shell and electric heating element stretches between the part of cylinder, and pressure transducer is experienced the suffered axial gaseous-pressure of electric heating element, output signal to central processing unit, central processing unit control fuel injection.The weak point of prior art is, pressure transducer is also experienced the suffered transverse pressure of electric heating element when experiencing the axle pressure of electric heating element, and transverse pressure can form the axle pressure signal that pressure transducer is experienced and disturb, and influences the precision of signal; Pressure transducer is connected between shell and the electric heating element simultaneously, also can form the shunt current between electric heating element and the ground connection, influences the operate as normal of electric heating element.
Summary of the invention
Technical matters to be solved is that a kind of Cylinder Pressure of Internal Combustion Engine sensor that the metallic ceramics electric heating element is arranged that can reduce from the horizontal pressure signal interference of electric heating axon is provided.
Solve the technical scheme of its technical matters, comprise shell, metallic ceramics electric heating element, electric heating element external insulation layer, flexible connecting member, web member set collar, pressure transducer, sensor ring and the insulation collar; Shell is contained on the internal combustion engine housing, and shell has center pit, and the metallic ceramics electric heating element is contained in the center pit of shell and stretches in the cylinder with its end, and the electric heating element external insulation layer is contained on the outside surface of metallic ceramics electric heating element epimere; Flexible connecting member has center pit, is connected with the electric heating element external insulation layer with its center pit, and the outer of flexible connecting member is contained on the lower surface of shell, and the web member set collar is contained under the lower surface of flexible connecting member outer; The insulation collar has center pit, is contained in the outside of the end of metallic ceramics electric heating element with its center pit; Sensor ring has center pit, is connected with shell with its outer, lower surface, is connected with the insulation collar with the periphery of its center pit lower surface; Pressure transducer is contained in the sensor ring.
Flexible connecting member can be a diaphragm, also can be corrugated tube;
The metallic ceramics electric heating element is the metallic ceramics electric heating element of silicon nitride comprising, molybdenum silicide, aluminium oxide and ytterbium oxide composition; The electric heating element external insulation layer is the insulation course of salic material;
Pressure transducer can be a strain pressure transducer, also can be piezoresistive pressure sensor, also can be piezoelectric pressure indicator.
Beneficial effect: be applied to the internal combustion engine Injection Turbo.Beneficial effect is can reduce the interference of the suffered electric heating axon transverse pressure of pressure transducer, the precision of raising pressure signal; Can between electric heating element and shell, not form direct shunt current.
Description of drawings
Fig. 1 is a structural drawing.Among Fig. 1,1 is shell, and 2 is the metallic ceramics electric heating element, and 3 is the electric heating element external insulation layer, and 4 is flexible connecting member, and 5 is the web member set collar, and 6 is pressure transducer, and 7 is sensor ring, and 8 are the insulation collar.
Embodiment
Embodiment is as follows, comprises shell 1, metallic ceramics electric heating element 2, electric heating element external insulation layer 3, flexible connecting member 4, web member set collar 5, pressure transducer 6, sensor ring 7 and the insulation collar 7; Shell 1 is contained on the internal combustion engine housing, and shell 1 has center pit, and metallic ceramics electric heating element 2 is contained in the center pit of shell 1 and stretches in the cylinder with its end, and electric heating element external insulation layer 3 is contained on the outside surface of metallic ceramics electric heating element 2 epimeres; Flexible connecting member 4 has center pit, is connected with electric heating element external insulation layer 3 with its center pit, and the outer of flexible connecting member 4 is contained on the lower surface of shell 1, and web member set collar 5 is contained under the lower surface of flexible connecting member 4 outers; The insulation collar 8 has center pit, is contained in the outside of the end of ceramic electrically-heated body 2 with its center pit; Sensor ring 7 has center pit, is connected with shell 1 with the outer of its lower surface, is connected with the insulation collar 7 with the periphery of its center pit lower surface; Pressure transducer 6 is contained in the sensor ring 7.
Claims (3)
1. the Cylinder Pressure of Internal Combustion Engine sensor that the metallic ceramics electric heating element is arranged, comprise shell (1) and metallic ceramics electric heating element (2), it is characterized in that also comprising electric heating element external insulation layer (3), flexible connecting member (4), web member set collar (5), pressure transducer (6), sensor ring (7) and the insulation collar (8); Shell (1) is contained on the internal combustion engine housing, and shell (1) has center pit, and metallic ceramics electric heating element (2) is contained in the center pit of shell (1) and stretches in the cylinder with its end, and electric heating element external insulation layer (3) is contained on the outside surface of metallic ceramics electric heating element (2) epimere; Flexible connecting member (4) has center pit, is connected with electric heating element external insulation layer (3) with its center pit, and the outer of flexible connecting member (4) is contained on the lower surface of shell (1), and web member set collar (5) is contained under the lower surface of flexible connecting member (4) outer; The insulation collar (8) has center pit, is contained in the outside of the end of metallic ceramics electric heating element (2) with its center pit; Sensor ring (7) has center pit, is connected with the outer and the shell (1) of its lower surface, is connected with the insulation collar (8) with the periphery of its center pit lower surface; Pressure transducer (6) is contained in the sensor ring (7).
2. according to the described Cylinder Pressure of Internal Combustion Engine sensor that the metallic ceramics electric heating element is arranged of claim 1, it is characterized in that flexible connecting member wherein (4) is a corrugated tube.
3. according to the described Cylinder Pressure of Internal Combustion Engine sensor that the metallic ceramics electric heating element is arranged of claim 1, it is characterized in that flexible connecting member wherein (4) is a diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010157831 CN102235932B (en) | 2010-04-28 | 2010-04-28 | Internal combustion engine cylinder pressure sensor with metal ceramic electric heating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010157831 CN102235932B (en) | 2010-04-28 | 2010-04-28 | Internal combustion engine cylinder pressure sensor with metal ceramic electric heating body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102235932A true CN102235932A (en) | 2011-11-09 |
| CN102235932B CN102235932B (en) | 2012-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010157831 Active CN102235932B (en) | 2010-04-28 | 2010-04-28 | Internal combustion engine cylinder pressure sensor with metal ceramic electric heating body |
Country Status (1)
| Country | Link |
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| CN (1) | CN102235932B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1734076A (en) * | 2004-08-05 | 2006-02-15 | 日本特殊陶业株式会社 | Glow plug with combustion pressure detecting function |
| WO2009015941A1 (en) * | 2007-07-27 | 2009-02-05 | Piezocryst Advanced Sensorics Gmbh | Piezoelectric pressure sensor |
| CN101393063A (en) * | 2007-09-21 | 2009-03-25 | 刘温 | Integration combustion pressure sensor for internal combustion engine |
| US20090118981A1 (en) * | 2007-11-06 | 2009-05-07 | Denso Corporation | Fuel injector with fuel pressure sensor |
| CN201716150U (en) * | 2010-04-28 | 2011-01-19 | 雷彼得 | Internal combustion engine cylinder pressure sensor with metal ceramic electric heating body |
-
2010
- 2010-04-28 CN CN 201010157831 patent/CN102235932B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1734076A (en) * | 2004-08-05 | 2006-02-15 | 日本特殊陶业株式会社 | Glow plug with combustion pressure detecting function |
| WO2009015941A1 (en) * | 2007-07-27 | 2009-02-05 | Piezocryst Advanced Sensorics Gmbh | Piezoelectric pressure sensor |
| CN101393063A (en) * | 2007-09-21 | 2009-03-25 | 刘温 | Integration combustion pressure sensor for internal combustion engine |
| US20090118981A1 (en) * | 2007-11-06 | 2009-05-07 | Denso Corporation | Fuel injector with fuel pressure sensor |
| CN201716150U (en) * | 2010-04-28 | 2011-01-19 | 雷彼得 | Internal combustion engine cylinder pressure sensor with metal ceramic electric heating body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102235932B (en) | 2012-12-05 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 401329 Chongqing Jiulongpo District Feng Sheng Road No. 15 of No. 1 first floor Patentee after: Lei Bide Address before: Jiulongpo Shiqiaopu science park four 400039 Chongqing Road No. 170 building 3 floor E Patentee before: Lei Bide |
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Addressee: Lei Bide Document name: Notification of Passing Examination on Formalities |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20111109 Assignee: Chongqing Lima Ceramic Technology Co. Ltd. Assignor: Lei Bide Contract record no.: 2015990000284 Denomination of invention: Internal combustion engine cylinder pressure sensor with metal ceramic electric heating body Granted publication date: 20121205 License type: Exclusive License Record date: 20150506 |
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| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Chongqing Lima Ceramic Technology Co. Ltd. Assignor: Lei Bide Contract record no.: 2015990000284 Date of cancellation: 20180709 |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180914 Address after: 401329 floor 15, 1 Fung Sheng Road, Kowloon Po District, Chongqing. Patentee after: Chongqing Lima Ceramic Technology Co. Ltd. Address before: 401329 floor 15, 1 Fung Sheng Road, Kowloon Po District, Chongqing. Patentee before: Lei Bide |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 401329 no.15-1, Fengsheng Road, Jiulongpo District, Chongqing Patentee after: Chongqing Limai Technology Co.,Ltd. Address before: 401329 floor 15, 1 Fung Sheng Road, Kowloon Po District, Chongqing. Patentee before: CHONGQING LE-MARK CERAMIC TECHNOLOGY Co.,Ltd. |