CN103827664B - Gas sensor - Google Patents
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- CN103827664B CN103827664B CN201280046640.5A CN201280046640A CN103827664B CN 103827664 B CN103827664 B CN 103827664B CN 201280046640 A CN201280046640 A CN 201280046640A CN 103827664 B CN103827664 B CN 103827664B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
- G01N27/4078—Means for sealing the sensor element in a housing
Abstract
Problem of the present invention is to make gas sensor (1) cheap and anticorrosion.Gas sensor (1) comprises main component (13), urceolus (17) and seal (53).Main component (13), urceolus (17) and seal (53) utilize following material to be formed: this material take Fe as principal ingredient, and the amount at least also containing C, C is 0.05wt% ~ 0.65wt%, and the amount of Cr and Ni is below 1wt%.
Description
Technical field
The present invention relates to a kind of gas sensor.
Background technology
Be known to a kind of gas sensor, this gas sensor comprises: main component, and it is tubular, for keeping sensor element; Urceolus, it is tubular, and calking is fixed on around the rearward end of main component; And seal, it is for sealing between main component and urceolus.Such gas sensor is applied to the easy environment producing corrosion of vehicle etc.
So, be known to by making the material of main component be the corrosion (such as patent documentation 1) that stainless steel suppresses main component.Or be known to a kind of gas sensor, it is when possessing the protection outer barrel member covering urceolus, in order to suppress urceolus to corrode, outer barrel member is than protecting outer barrel member to be more difficult to the material (such as patent documentation 2) got rusty.
Patent documentation 1: Japanese Unexamined Patent Publication 2009-198422 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2009-276339 publication
When adopting the material of stainless steel as main component the sensor as patent documentation 1, there is the problem that cost uprises.So, consider to replace stainless steel and adopt using the material of cheapness such as Fe as principal ingredient, at least containing the C of 0.05wt% ~ 0.65wt%, the material (such as carbon steel) containing below 1wt% Cr or Ni as the material of main component.But, when adopting the material of this material as main component, its corrosion potential lower than using stainless steel as the urceolus of material and seal, therefore, there is the problem that corrosion easily occurs.And when there is corrosion, the wall thickness of main component is thinning, and exists and cause the calking between main component and urceolus fixedly to fluff slack problem.
Summary of the invention
the problem that invention will solve
The present invention makes to solve the problem, can in the following manner or application examples realize.
for the scheme of dealing with problems
Application examples 1: a kind of gas sensor, this gas sensor comprises:
Sensor element, it extends in the axial direction, and front is exposed in measured gas;
Main component, it is tubular, and the rearward end of the sensor element is given prominence to side to the back-end, and covers around the sensor element;
And urceolus, it is configured at the rear end side of aforementioned body part, surrounds the rearward end of the sensor element,
Have teat in the leading section of above-mentioned urceolus, this teat is outstanding to radial outside,
In the rearward end of aforementioned body part, there is kink, this kink by aforementioned body part being bent to form to radially inner side crimp in the position than above-mentioned teat side rearward,
Above-mentioned kink and above-mentioned teat are configured in the mode arranged along above-mentioned axis direction across seal, wherein,
Aforementioned body part, above-mentioned urceolus and above-mentioned seal only utilize following material to be formed: this material take Fe as principal ingredient, and the amount at least also containing C, C is 0.05wt% ~ 0.65wt%, and the amount of Cr and Ni is below 1wt%.
In addition, in the present invention, so-called " principal ingredient " refers among composition comprised within this material containing maximum compositions.Such as, so-called " taking Fe as the material of principal ingredient " refers in material maximum containing Fe.
Application examples 2: the gas sensor according to application examples 1, wherein,
The material of the material of aforementioned body part, the material of above-mentioned urceolus and above-mentioned seal becomes the relation that respective C content is the material of the above-mentioned urceolus of material > of the above-mentioned seal of material > of aforementioned body part.
Application examples 3: the gas sensor according to application examples 1 or 2, wherein,
Be provided with superficial layer at the outside surface of aforementioned body part, above-mentioned urceolus and above-mentioned seal, this superficial layer is zinc coat or nickel coating.
In addition, main component, urceolus and seal can be formed by any one in zinc coat and nickel coating, but preferably main component, urceolus and seal cover by zinc coat or by nickel coating.
Application examples 4: a kind of gas sensor, this gas sensor comprises:
Sensor element, it extends in the axial direction, and front is exposed in measured gas;
Main component, it is tubular, and the rearward end of the sensor element is given prominence to side to the back-end, and covers around the sensor element; And
Urceolus, it is configured at the rear end side of aforementioned body part, surrounds the rearward end of the sensor element,
Have teat in the leading section of above-mentioned urceolus, this teat is outstanding to radial outside,
In the rearward end of aforementioned body part, there is kink, this kink by aforementioned body part being bent to form to radially inner side crimp in the position than above-mentioned teat side rearward,
Above-mentioned kink and above-mentioned teat are configured in the mode arranged along above-mentioned axis direction across seal, wherein,
Aforementioned body part utilizes following material to be formed: this material take Fe as principal ingredient, and the amount at least also containing C, C is 0.05wt% ~ 0.65wt%, and the amount of Cr and Ni is below 1wt%,
The superficial layer with identical corrosion potential is provided with at the outside surface of aforementioned body part, above-mentioned urceolus and above-mentioned seal.
Application examples 5: the gas sensor according to application examples 4, wherein,
The above-mentioned superficial layer of aforementioned body part, above-mentioned urceolus and above-mentioned seal is zinc coat or nickel coating.
Application examples 6: the gas sensor according to application examples 4 or 5, wherein,
Above-mentioned urceolus and above-mentioned seal only utilize following material to be formed: this material take Fe as principal ingredient, and the amount at least also containing C, C is 0.05wt% ~ 0.65wt%, and the amount of Cr and Ni is below 1wt%.
Application examples 7: the gas sensor according to application examples 6, wherein,
The material of the material of aforementioned body part, the material of above-mentioned urceolus and above-mentioned seal becomes the relation that respective C content is the material of the above-mentioned urceolus of material > of the above-mentioned seal of material > of aforementioned body part.
Application examples 8: the gas sensor according to any one of application examples 1 ~ 7, wherein,
Aforementioned body part is installed on the installation portion of the engine cylinder cover being located at for motor vehicle internal combustion engine.
the effect of invention
Adopt the gas sensor of application examples 1, the material of main component passes through to adopt following material, namely using the Fe of cheapness as principal ingredient, and at least containing C, the amount of C is 0.05wt% ~ 0.65wt%, and the amount of Cr and Ni is below 1wt%, can suppress cost.And, also adopt same material by urceolus and seal, the difference between the corrosion potential that can reduce aforementioned body part and above-mentioned urceolus and above-mentioned seal.Its result, can suppress main component to corrode, and then, the fixing absent-mindedness of calking can be suppressed.
Adopt the gas sensor of application examples 2, because the content of the C making the material of urceolus is minimum, therefore, it is possible to improve the processability of urceolus, and easily form urceolus.Particularly, utilize this material, easily can form the urceolus needing to carry out drawing processing.
Adopting the gas sensor of application examples 3, by arranging zinc coat or nickel coating on the surface of main component, urceolus and seal, the corrosion of main component, urceolus and seal can be suppressed further.
Adopt the gas sensor of application examples 4, the material of main component passes through to adopt following material, namely using the Fe of cheapness as principal ingredient, and at least containing C, the amount of C is 0.05wt% ~ 0.65wt%, and the amount of Cr and Ni is below 1wt%, can suppress cost.And the surface of aforementioned body part and above-mentioned urceolus and above-mentioned seal is provided with the superficial layer with identical corrosion potential, its result, can suppress main component to corrode, and further, can suppress the fixing absent-mindedness of calking.
Adopt the gas sensor of application examples 5, easily can form superficial layer, corrosion can be suppressed.
Adopt the gas sensor of application examples 6, the material of seal and urceolus is by also adopting following material, namely using the Fe of cheapness as principal ingredient, and at least containing C, the amount of C is 0.05wt% ~ 0.65wt%, and the amount of Cr and Ni is below 1wt%, can suppress cost.
Adopt the gas sensor of application examples 7, because the content of the C of the material of urceolus is minimum, therefore, it is possible to improve the processability of urceolus, and easily can form urceolus.Particularly, adopt this material, easily can form the urceolus needing to carry out drawing processing.
The thermotolerance of carbon steel fully meets the environment for use of application examples 8, therefore, is applicable to this gas sensor.
Accompanying drawing explanation
Fig. 1 is the cut-open view of gas sensor 1.
Fig. 2 is the surface-treated form representing main material and material.
Fig. 3 is the form of the measurement result representing electromotive force.
Fig. 4 represents that range estimation judges the result of the rust utilizing salt spraytest to produce.
Embodiment
1. the structure (Fig. 1) of gas sensor 1:
Fig. 1 is the cut-open view of gas sensor 1.Gas sensor 1 is the sensor of the oxygen concentration of tail gas for measuring cart, is installed on the installation portion being located at engine cylinder cover of internal combustion engine.As shown in Figure 1, gas sensor 1 comprises sensor element 3, obstruction component 7, wire 11, main component 13, protector 15, urceolus 17, protection urceolus 19, seal 53 and filtrator 57.Main component 13 and urceolus 17 form shell 20.
Sensor element 3 have extend along axes O direction (above-below direction of Fig. 1) have bottom tube-like, front (downside of Fig. 1) is exposed in measured gas, i.e. tail gas.Sensor element 3 adopts the solid electrolyte with oxygen-ion conductive as principal ingredient, specifically adopts and makes Y
2o
3the ZrO of solid solution
2as principal ingredient.But, oxide and the ZrO of CaO, earth alkali metal in addition or rare earth metal can also be used
2solid solution.And, HfO can also be contained wherein
2.
In the front of this sensor element 3, be formed with lateral electrode (not shown) at outer peripheral face, in addition, be provided with medial electrode (not shown) at inner peripheral surface.This lateral electrode and medial electrode are formed by Pt or Pt alloy.
In addition, flange part 23 outwardly is diametrically provided with in the substantially central portion of sensor element 3.
Obstruction component 7 is such as made up of fluororubber.Obstruction component 7 is the containment member of drum.The periphery of the rear end side of obstruction component 7 and the inner peripheral surface of metal urceolus 17 and protect the inner peripheral surface of urceolus 19 closely sealed, by the inside of gas sensor 1 and external isolation.That is, the rear end side of the inaccessible shell 20 of obstruction component 7.
Be provided with the through hole 37 through along axes O direction at obstruction component 7, running through in this through hole 37 has wire 11.The front of this wire 11 is connected to terminal member 9, and rear end side is connected to external circuit (not shown).In addition, terminal member 9, for being inserted in the component of the roughly tubular of the inside of sensor element 3, contacts with medial electrode.External circuit is fetched into thereby, it is possible to exported by sensor.
Separator 5 is configured with between sensor element 3 and obstruction component 7.This separator 5 is made up of potteries such as alumina, is provided with the through hole 35 run through for wire 11.
The front of sensor element 3 covers and protects by protector 15.The end edge of protector 15 is clamped between the flange part 23 of sensor element 3 and the stage portion 39 of main component described later 13.
Main component 13 is the component of metal cylindrical shape, comprises stage portion 39.This stage portion 39 is for the flange part 23 of supporting sensor elements 3, and the inner peripheral surface of autonomous agent part 13 is given prominence to towards radially inner side.
In addition, the outer peripheral face of the front of main component 13 is provided with threaded portion 41, this threaded portion 41 is for being installed on the installation portion of engine cylinder cover by gas sensor 1, be provided with hexagonal portion 43 in the rear end side of this threaded portion 41, this hexagonal portion 43 is for being used for erecting tools engaging threaded portion 41 being tightened to installation portion.And the rear end side in the hexagonal portion 43 of this main component 13 is provided with cylindrical portion 45.And, be provided with the kink 51 by the rearward end of main component 13 being bent to form to radially inner side crimp in the rear end side of cylindrical portion 45.By this crimp, urceolus 17 described later is fixed.
Urceolus 17 is fixed on the rear end side of main component 13, surrounds the rearward end of sensor element 3.The teat 55 of urceolus 17 bends to radial outside.Teat 55 is relative with the kink 51 bent to the inside by this bending.Seal 53 is metal, is configured in relative with kink 51 by teat 55 and in the gap formed.
In addition, the ceramic sleeve 49 being configured with the ceramic powders 47 formed by talcum from front and being made up of alumina between main component 13 and sensor element 3, in order to form kink 51, by by the rearward end of main component 13 to radially inner side crimp, ceramic powders 47 is compressed, and the sealing between realization body part 13 and sensor element 3.
Protection urceolus 19 is fixed on urceolus 17 across filtrator 57 calking.Urceolus 17 and protection urceolus 19 are respectively equipped with air hole 59,61.The ventilation between the inside of gas sensor 1 and outside is carried out by air hole 59,61 and filtrator 57.
At this, main component 13, urceolus 17 and seal 53 is metal, contacts with each other, and is exposed in extraneous air.Thus, be in the environment that corrosion easily occurs.When there is corrosion, make wall thickness thinning because producing rust, and calking may be caused fixing lax.So, in order to investigate the preferred material of these materials, utilize next described experiment to have collected data.
2. main material and surface treatment (Fig. 2):
Fig. 2 is the main material and the surface-treated form that represent the principal ingredient becoming each material.At this, the surface-treated material applied main material is called material.For not applying surface-treated situation, main material is identical with material.These materials application are in experiment described later.As shown in Figure 2, following these five kinds of samples of materials A ~ E have been prepared.Materials A ~ E represents with the order of " main material, surface treatment ".
A:SUS304, without surface treatment
B:SPCE or S17C, zinc-plated+trivalent chromate
C:SPCE or S17C, nickel plating+electrolysis trivalent chromate
D:SPCE or S17C, without surface treatment
E:SUS430, without surface treatment
SPCE is mild carbon steel, and carbon content is below 0.1%.Thus, SPCE is cheap and processability is superior.
3. measure electromotive force (Fig. 3):
Use materials A ~ E, carry out the experiment of measuring the electromotive force produced between two samples.
The condition of this experiment as described below.
I () floods two samples in 5wt% sodium-chloride water solution.
(ii) be immersed under the state in sodium-chloride water solution, measuring the stable electromotive force produced between two samples.
(iii) in order to the electromotive force of Measurement sensibility, two sample dippings are being measured in aqueous for 20 minutes later.
(iv) about value positive and negative of electromotive force, the state of the current potential of sample I higher than sample II is just decided to be.
Fig. 3 is the form of the experimental result representing above-mentioned electro-motive force measurement.As shown in Figure 3, using materials A ~ E as sample I, materials A ~ D is combined as sample II.
Embodiment is test No2, No4, No6 these three tests.These embodiments meet two samples and adopt the main material of identical surface treatment or sample to be only the condition of identical mild carbon steel.That is, the corrosion potential on surface is equal, and, be the material than stainless steel cheapness.In the test being object with these embodiments, all measure less electromotive force.This so-called " less " for absolute value is less.Specifically, measuring absolute value is 0.01V ~ 0.05V.Its result, when by the materials application of embodiment in main component 13, urceolus 17 and seal 53, confirm and be difficult to corrode.
In contrast, test No1, No3, No5 are comparative example.The material being the surface of two samples due to these comparative examples is different, and therefore, the corrosion potential on surface is also different.Thus, in the test being object with these comparative examples, all measure larger electromotive force.Specifically, measuring absolute value is 0.23V ~ 0.89V.From the result of comparative example, confirm the superiority of embodiment.
Test No7 take conventional art as the test of object.The electromotive force of test No7 is 0.01V, identical with embodiment.But sample I is materials A (SUS304), sample II is material E (SUS430), is not all carbon steel, but the stainless steel of high price.
4. salt spraytest (Fig. 4):
Remove protection urceolus 19 and filtrator 57 from gas sensor 1, the parts of the air hole 59 of burying urceolus 17 are carried out salt spraytest as subjects thing.The content that this test is published with JISH8502 (2010 annual version) is that standard is carried out, and floods 50 hours in salt spraytest pond.
Fig. 4 represents the test findings of above-mentioned salt spraytest.As shown in Figure 4, subjects thing is as main component 13, materials A, B, C are carried out as urceolus 17 five kinds of materials combining using material E, B, C.In salt spraytest, material B, C only use SPCE and evaluate.The object position judged is the crimp portion of main component 13 and the exposed portion of urceolus 17.Judging to be undertaken by estimating, adopting and being bad (×) in the situation producing rust over half at object position, being then the standard of good (zero) less than half.
Embodiment is test No10,12 these two.The main material that these two tests meet main component 13 and urceolus 17 both sides is mild carbon steel and surface has identical corrosion potential.In two embodiments, main component 13, urceolus 17 both sides obtain good result.That is, corrosion can be suppressed while confirming the cheap mild carbon steel of use.
Test No8 is take conventional art as the test of object, and the material of main component 13 and urceolus 17 is stainless steel.According to the conventional art, although rust can be suppressed, Billy can be caused with mild carbon steel to form the situation of any one high price in main component 13 and urceolus 17.
Test No9, No11 are comparative example.The result of the main component 13 of arbitrary comparative example is bad.Can think that this result is because the corrosion potential on the surface of main component 13 and the surface of urceolus 17 does not cause facilitating corrosion on an equal basis.
From above experimental data, material unification main component 13, urceolus 17 and seal 53 used is material C (SPCE, nickel plating+electrolysis trivalent chromate) for material B (SPCE, zinc-plated+trivalent chromate) or unification, all confirms and makes material cheap and can suppress corrosion.If corrosion can be suppressed, then contribute to the calking fixed permanent between main component 13 and urceolus 17, contribute to the life-span extending gas sensor 1 furthermore.In addition, material unification main component 13, urceolus 17 and seal 53 used is material B (S17C, zinc-plated+trivalent chromate), material C (S17C, nickel plating+electrolysis trivalent chromate), material E (SPCE or S17C, without surface treatment), material also can be made cheap and suppress corrosion.
Gas sensor 1 is installed on the installation portion of the engine cylinder cover of the engine being located at cart.This environment for use is relative low temperature (about 200 DEG C), the environment that the thermotolerance for carbon steels such as SPCE also can use.Thus, the tail gas of cart is applicable to as the purposes of measured gas the gas sensor 1 employing material B, C, D.
5. other embodiment:
If the material that main component 13, urceolus 17 and seal 53 use is adopted as following material, this material take Fe as main material, and at least containing C, the amount of C is 0.05wt% ~ 0.65wt%, and the amount of Cr and Ni is below 1wt%, be then therefore preferred because the corrosion potential on surface is identical.Such as, any one (such as S10C) that principal ingredient can adopt the table 1 of JISG4051 (2010 annual version) to publish, particularly in processability, S17C ~ S25C is preferred.In addition, any one (such as SPCC) in the cold-rolled steel sheet that JISG3141 can also be adopted to publish and steel band.
Even if main component 13, urceolus 17 and seal 53 use different main materials, as long as make surface treatment identical to make corrosion potential on an equal basis.On the other hand, when using identical main material, because corrosion potential is equal, therefore, also surface treatment can not be carried out.
Because main component 13 is more compared to the use amount of urceolus 17 and seal 53 material, therefore, the selected impact brought manufacturing cost of material is larger.Thus, if the main material of main component 13 is carbon steel, even if then the main material of urceolus 17 and seal 53 is not carbon steel, the effect reducing manufacturing cost also can be obtained fully.Therefore, such as, even if the main material of urceolus 17 and seal 53 adopts stainless steel, main component 13, urceolus 17, seal 53 use different main materials, as long as make surface treatment identical to make corrosion potential on an equal basis.
In addition, the material of the material of preferred main component 13, the material of urceolus 17 and seal 53 becomes the relation that respective C content is the material of the material > urceolus 17 of the material > seal 53 of main component 13.Specifically, can, by making main component 13 be the carbon steel of S17C ~ S25C, make urceolus 17 for SPCE, seal 53 is reached for SPCC.By so, because the C content of the material of urceolus 17 is minimum, therefore, it is possible to improve the processability of urceolus 17 and easily form urceolus 17.Particularly, according to this material, then easily can form the urceolus 17 needing to carry out drawing processing.
Purposes can not also be the tail gas for measuring cart.Consider the thermotolerance of carbon steel, preferably use under the environment do not reached a high temperature (such as less than 200 DEG C).Such as, both can be installed on the engine cylinder cover of the engine of four-wheel automobile, also can be applied to fuel cell.When being applied to fuel cell, be specially adapted to the lower electrolyte material for polymer of operating temperature, phosphoric acid shape.
As long as in anticorrosion effectively, surface treatment also can be other method.Such as, also hexavalent chromate can be used.
description of reference numerals
1, gas sensor; 3, sensor element; 5, separator; 7, obstruction component; 9, terminal member; 11, wire; 13, main component; 15, protector; 17, urceolus; 19, urceolus is protected; 20, shell; 23, flange part; 35, through hole; 37, through hole; 39, stage portion; 41, threaded portion; 43, hexagonal portion; 45, cylindrical portion; 47, ceramic powders; 49, ceramic sleeve; 51, kink; 53, seal; 55, teat; 57, filter unit; 59, air hole.
Claims (11)
1. a gas sensor, this gas sensor comprises:
Sensor element, it extends in the axial direction, and front is exposed in measured gas;
Main component, it is tubular, and the rearward end of the sensor element is given prominence to side to the back-end, and covers around the sensor element; And
Urceolus, it is configured at the rear end side of aforementioned body part, surrounds the rearward end of the sensor element,
Have teat in the leading section of above-mentioned urceolus, this teat is outstanding to radial outside,
Have kink in the rearward end of aforementioned body part, this kink is by being bent to form to radially inner side crimp by aforementioned body part in the position than above-mentioned teat side rearward,
Above-mentioned kink and above-mentioned teat are configured in the mode arranged along above-mentioned axis direction across seal, wherein,
Aforementioned body part, above-mentioned urceolus and above-mentioned seal only utilize following material to be formed: this material take Fe as principal ingredient, and the amount at least also containing C, C is 0.05wt% ~ 0.65wt%, and the amount of Cr and Ni is below 1wt%.
2. gas sensor according to claim 1, wherein,
The material of the material of aforementioned body part, the material of above-mentioned urceolus and above-mentioned seal becomes the relation that respective C content is the material of the above-mentioned urceolus of material > of the above-mentioned seal of material > of aforementioned body part.
3. gas sensor according to claim 1 and 2, wherein,
Be provided with superficial layer at the outside surface of aforementioned body part, above-mentioned urceolus and above-mentioned seal, this superficial layer is zinc coat or nickel coating.
4. a gas sensor, this gas sensor comprises:
Sensor element, it extends in the axial direction, and front is exposed in measured gas;
Main component, it is tubular, and the rearward end of the sensor element is given prominence to side to the back-end, and covers around the sensor element; And
Urceolus, it is configured at the rear end side of aforementioned body part, surrounds the rearward end of the sensor element,
Have teat in the leading section of above-mentioned urceolus, this teat is outstanding to radial outside,
Have kink in the rearward end of aforementioned body part, this kink is by being bent to form to radially inner side crimp by aforementioned body part in the position than above-mentioned teat side rearward, wherein,
Above-mentioned kink and above-mentioned teat are configured in the mode arranged along above-mentioned axis direction across seal,
Aforementioned body part only utilizes following material to be formed: this material take Fe as principal ingredient, and the amount at least also containing C, C is 0.05wt% ~ 0.65wt%, and the amount of Cr and Ni is below 1wt%,
The superficial layer with identical corrosion potential is provided with at the outside surface of aforementioned body part, above-mentioned urceolus and above-mentioned seal.
5. gas sensor according to claim 4, wherein,
The above-mentioned superficial layer of aforementioned body part, above-mentioned urceolus and above-mentioned seal is zinc coat or nickel coating.
6. the gas sensor according to claim 4 or 5, wherein,
Above-mentioned urceolus and above-mentioned seal only utilize following material to be formed: this material take Fe as principal ingredient, and the amount at least also containing C, C is 0.05wt% ~ 0.65wt%, and the amount of Cr and Ni is below 1wt%.
7. gas sensor according to claim 6, wherein,
The material of the material of aforementioned body part, the material of above-mentioned urceolus and above-mentioned seal becomes the relation that respective C content is the material of the above-mentioned urceolus of material > of the above-mentioned seal of material > of aforementioned body part.
8. the gas sensor according to any one of claim 1,2,4 and 5, wherein,
Aforementioned body part is installed on the installation portion of the engine cylinder cover being located at for motor vehicle internal combustion engine.
9. gas sensor according to claim 3, wherein,
Aforementioned body part is installed on the installation portion of the engine cylinder cover being located at for motor vehicle internal combustion engine.
10. gas sensor according to claim 6, wherein,
Aforementioned body part is installed on the installation portion of the engine cylinder cover being located at for motor vehicle internal combustion engine.
11. gas sensors according to claim 7, wherein,
Aforementioned body part is installed on the installation portion of the engine cylinder cover being located at for motor vehicle internal combustion engine.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011260038 | 2011-11-29 | ||
| JP2011-260038 | 2011-11-29 | ||
| PCT/JP2012/007577 WO2013080513A1 (en) | 2011-11-29 | 2012-11-27 | Gas sensor |
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| Publication Number | Publication Date |
|---|---|
| CN103827664A CN103827664A (en) | 2014-05-28 |
| CN103827664B true CN103827664B (en) | 2015-10-21 |
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| CN201280046640.5A Active CN103827664B (en) | 2011-11-29 | 2012-11-27 | Gas sensor |
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| Country | Link |
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| JP (1) | JP5944889B2 (en) |
| CN (1) | CN103827664B (en) |
| WO (1) | WO2013080513A1 (en) |
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| JP2015004646A (en) * | 2013-06-24 | 2015-01-08 | 株式会社村田製作所 | Oxygen concentration measurement device |
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| JP2009276339A (en) * | 2008-04-16 | 2009-11-26 | Ngk Spark Plug Co Ltd | Sensor |
| JP4950956B2 (en) * | 2008-07-18 | 2012-06-13 | 日本特殊陶業株式会社 | Gas sensor |
| JP5170910B2 (en) * | 2009-03-02 | 2013-03-27 | 日本特殊陶業株式会社 | Gas sensor manufacturing method and gas sensor |
-
2012
- 2012-11-27 CN CN201280046640.5A patent/CN103827664B/en active Active
- 2012-11-27 WO PCT/JP2012/007577 patent/WO2013080513A1/en active Application Filing
- 2012-11-27 JP JP2013507487A patent/JP5944889B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1341764A (en) * | 2000-09-07 | 2002-03-27 | 福田金属箔粉工业株式会社 | High-toughness internal surface solidification material for cylinder body |
| CN101666775A (en) * | 2008-09-02 | 2010-03-10 | 日本特殊陶业株式会社 | Gas sensor and gas sensor unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2013080513A1 (en) | 2015-04-27 |
| WO2013080513A1 (en) | 2013-06-06 |
| CN103827664A (en) | 2014-05-28 |
| JP5944889B2 (en) | 2016-07-05 |
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