CN104964787A - Novel intake pressure sensor - Google Patents
Novel intake pressure sensor Download PDFInfo
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- CN104964787A CN104964787A CN201510396678.0A CN201510396678A CN104964787A CN 104964787 A CN104964787 A CN 104964787A CN 201510396678 A CN201510396678 A CN 201510396678A CN 104964787 A CN104964787 A CN 104964787A
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- pressure sensor
- temperature
- intake pressure
- sensor
- inlet pressure
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Abstract
The invention provides a novel intake pressure sensor. An intake pressure sensor is provided with a high temperature resistant hose; one end of the high temperature resistant hose is connected with a pagoda head of the intake pressure sensor; the other end of the high temperature resistant hose is connected with a turbocharged intake pipe; since the interior of the sensor is sealed, the rubber hose can excellently decrease heat radiation of a high-temperature gas to the sensor; and the temperature of the high-temperature gas can be tested, and the length of the rubber hose can be adjusted, and therefore, the temperature of the sensor can be kept in a normal work temperature range. With the novel intake pressure sensor of the invention adopted, the problem of incapability of measuring turbocharged high-temperature intake pressure when a turbocharged non-inter-cooling engine performs electronic control EGR update can be solved, and a difficulty that the tolerable temperature of a traditional intake pressure sensor cannot exceed 135 DEC C can be eliminated through changing a connection mode.
Description
Technical field
The present invention relates to a kind of air inlet pressure sensor, particularly relate to the air inlet pressure sensor in the non-middle cold mould engine electric-controlled system of a kind of supercharging.
Background technology
In engines exhaust gas recirculation (EGR) system, ECU calculates the aperture of current EGR systems demand by intake pressure sensor signal and the signal such as rotating speed, water temperature by meter reading method, utilize the signal calculated to control the aperture size of EGR valve, thus adjustment exhaust gas flow, return cylinder after waste gas is mixed by a certain percentage with fresh air and carry out recycle, temperature and burning rate is burnt, further thus reduce NO to reduce cylinder combustion
xdischarge capacity.
The China of state three emission limit is implemented at current non-rice habitats, the mainstream model technology path of most of non-rice habitats diesel engine producer be all supercharging non-in cold mechanical type injection pump add egr system, mechanical type injection pump does not have ECU control module, adds that an EGR valve has no idea to control so simple.Diesel engine is made to be upgraded to state three emission level from the emission level of state-two, this just need for engine tailor a set of can the egr system of accurately closed-loop control EGR valve, this wherein just needs air inlet pressure sensor to detect the input signal that the pressure after supercharging is used as ECU.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide a kind of novel gas inlet pressure transducer, solving the problem that the admission pressure of the non-middle cold engine of supercharging when carrying out electric control EGR upgrading after supercharging cannot be measured.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of novel gas inlet pressure transducer, air inlet pressure sensor is equipped with one section of resistant to elevated temperatures flexible pipe, and described Thermostable flexible hose one is connected with the pagoda head of air inlet pressure sensor, and other end is connected in the draft tube after supercharging.
Further improvement of the present invention is: the temperature of described Thermostable flexible hose is more than 135 DEG C.
Further improvement of the present invention is: the material of described Thermostable flexible hose is rubber.
Owing to have employed above technical scheme, the invention technological progress is as follows:
This air inlet pressure sensor and traditional air inlet pressure sensor are on detecting head, add one section of resistant to elevated temperatures flexible pipe, air inlet pressure sensor detecting head is connected with the draft tube after supercharging by high temperature hose, detecting head and high-temperature-phase are isolated, and the air inlet after supercharging is containing exhaust emission, due to the isolation of Thermostable flexible hose, the air of inside hose does not circulate, air inlet pressure sensor is subject to substantially less than pollution, and Sensor section can selective temperature lower, space of reduced contamination is fixed, sensor is well protected, extend the serviceable life of sensor.Solving conventional gas introduction pressure transducer tolerable temperature by the change of connected mode can not more than the difficult problem of 135 DEG C.
Air inlet pressure sensor disclosed in this invention can be applicable to the electric-control system of the non-middle cold type of supercharging, the pressure testing high-temperature gas after supercharging can be applicable to, and owing to being connected with high temperature hose between sensor with high-temperature gas, so sensor also can not by the impact of waste gas.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein: 1-air inlet pressure sensor, 2-flexible pipe, 3-pagoda head, 4-draft tube.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described:
According to Fig. 1, a kind of novel gas inlet pressure transducer, air inlet pressure sensor 1 is equipped with one section of resistant to elevated temperatures flexible pipe 2, described Thermostable flexible hose 2 one is connected with the pagoda head 3 of air inlet pressure sensor 1, other end is connected in the draft tube 4 after supercharging, because sensor internal is air locking, so rubber hose can be good at reducing high-temperature gas to the heat radiation of sensor, by testing the temperature of high-temperature gas, the length of adjustment rubber hose, within remaining on normal working temperature to make sensor.
Claims (3)
1. a novel gas inlet pressure transducer, it is characterized in that: air inlet pressure sensor (1) is equipped with one section of resistant to elevated temperatures flexible pipe (2), described Thermostable flexible hose (2) one is connected with the pagoda head (3) of air inlet pressure sensor (1), and other end is connected in the draft tube (4) after supercharging.
2. novel gas inlet pressure transducer according to claim 1, is characterized in that: the temperature of described Thermostable flexible hose (2) is more than 135 DEG C.
3. a kind of novel gas inlet pressure transducer according to claim 1 and 2, is characterized in that: the material of described Thermostable flexible hose (2) is rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396678.0A CN104964787A (en) | 2015-07-08 | 2015-07-08 | Novel intake pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396678.0A CN104964787A (en) | 2015-07-08 | 2015-07-08 | Novel intake pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104964787A true CN104964787A (en) | 2015-10-07 |
Family
ID=54218837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510396678.0A Pending CN104964787A (en) | 2015-07-08 | 2015-07-08 | Novel intake pressure sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN104964787A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106102399A (en) * | 2016-08-22 | 2016-11-09 | 华景传感科技（无锡）有限公司 | A kind of sealing structure of vacuum pump electronic controller |
| CN107144395A (en) * | 2017-07-06 | 2017-09-08 | 贵州航天电器股份有限公司 | A kind of air pressure measuring apparatus |
Citations (9)
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| JPS6418036A (en) * | 1987-07-14 | 1989-01-20 | Mitsubishi Electric Corp | Pressure sensor |
| CN2094815U (en) * | 1991-04-05 | 1992-01-29 | 鞠永惠 | Sensing type digital display multi-function pressure regulator |
| CN2541832Y (en) * | 2002-04-30 | 2003-03-26 | 张店钢铁总厂 | Hot gas manograph for gas producer |
| CN202255732U (en) * | 2011-09-20 | 2012-05-30 | 天津中电天仪科技有限公司 | Pressure transmitter for high-temperature corrosive melt |
| CN202329920U (en) * | 2011-12-08 | 2012-07-11 | 贵阳铝镁设计研究院有限公司 | Cooling device for pressure measuring of mixed gas at top of fused salt chlorination furnace |
| CN202471681U (en) * | 2012-03-26 | 2012-10-03 | 无锡隆盛科技股份有限公司 | Test cavity in nitrogen oxide sensor detection system heating device |
| CN202853828U (en) * | 2012-09-04 | 2013-04-03 | 贵州中烟工业有限责任公司 | Pipeline pressure testing device |
| CN203310560U (en) * | 2013-07-15 | 2013-11-27 | 瑞安市炜炜车业部件有限公司 | Air inlet pressure sensor |
| CN204758206U (en) * | 2015-07-08 | 2015-11-11 | 无锡隆盛科技股份有限公司 | Novel intake pressure sensor |
-
2015
- 2015-07-08 CN CN201510396678.0A patent/CN104964787A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6418036A (en) * | 1987-07-14 | 1989-01-20 | Mitsubishi Electric Corp | Pressure sensor |
| CN2094815U (en) * | 1991-04-05 | 1992-01-29 | 鞠永惠 | Sensing type digital display multi-function pressure regulator |
| CN2541832Y (en) * | 2002-04-30 | 2003-03-26 | 张店钢铁总厂 | Hot gas manograph for gas producer |
| CN202255732U (en) * | 2011-09-20 | 2012-05-30 | 天津中电天仪科技有限公司 | Pressure transmitter for high-temperature corrosive melt |
| CN202329920U (en) * | 2011-12-08 | 2012-07-11 | 贵阳铝镁设计研究院有限公司 | Cooling device for pressure measuring of mixed gas at top of fused salt chlorination furnace |
| CN202471681U (en) * | 2012-03-26 | 2012-10-03 | 无锡隆盛科技股份有限公司 | Test cavity in nitrogen oxide sensor detection system heating device |
| CN202853828U (en) * | 2012-09-04 | 2013-04-03 | 贵州中烟工业有限责任公司 | Pipeline pressure testing device |
| CN203310560U (en) * | 2013-07-15 | 2013-11-27 | 瑞安市炜炜车业部件有限公司 | Air inlet pressure sensor |
| CN204758206U (en) * | 2015-07-08 | 2015-11-11 | 无锡隆盛科技股份有限公司 | Novel intake pressure sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106102399A (en) * | 2016-08-22 | 2016-11-09 | 华景传感科技（无锡）有限公司 | A kind of sealing structure of vacuum pump electronic controller |
| CN107144395A (en) * | 2017-07-06 | 2017-09-08 | 贵州航天电器股份有限公司 | A kind of air pressure measuring apparatus |
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Application publication date: 20151007 |