CN102913656B - Seal structure and a temperature expansion valve - Google Patents
Seal structure and a temperature expansion valve Download PDFInfo
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- CN102913656B CN102913656B CN201210284399.1A CN201210284399A CN102913656B CN 102913656 B CN102913656 B CN 102913656B CN 201210284399 A CN201210284399 A CN 201210284399A CN 102913656 B CN102913656 B CN 102913656B
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- 238000007789 sealing Methods 0.000 claims abstract description 123
- 238000010276 construction Methods 0.000 claims description 31
- 230000004888 barrier function Effects 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 230000003321 amplification Effects 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 239000006200 vaporizer Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Temperature-Responsive Valves (AREA)
- Valve Housings (AREA)
- Gasket Seals (AREA)
Abstract
Between the sealed valve housing (10) and the diaphragm assembly (20) of a seal structure and a temperature expansion valve of the present invention, a high tightness can be obtained even when the pressure rise. An external threaded portion (11) and a stepped portion (12) is formed in the outer periphery of a first cylindrical portion (1) of the valve housing. An internal threaded portion (21) is formed in the inner circumference of a second cylindrical portion (2) of the lower cap (20b) of the diaphragm assembly. Projecting strips (22) are formed on the opening end portion (2A) of the second cylindrical portion. The opposed surfaces of the stepped portion are respectively used as a first sealing surface (12A) and a second sealing surface (22A). The area of the second sealing surface is allowed to be smaller than the area of the first sealing surface. For example, the second sealing surface is made to be a flat surface perpendicular to an axis (L), and the first sealing surface is made to be a conical surface. Inward stress is generated at the opening end portion of the second cylindrical part by using the thrust generated by the tightening of the second cylindrical portion and the first cylindrical portion.
Description
Technical field
The periphery that the present invention relates to a cylindrical part in two cylindrical part forms outside thread and forms internal thread in the inner circumferential of another cylindrical part, this outside thread and internal thread are screwed and in conjunction with two cylindrical part, and in this cylindrical part fill fluid device element in, sealing two cylindrical part bound fraction seal construction and employ sealing structure Temp. expansion valve.
Background technique
There is such as disclosed in Japanese Unexamined Patent Publication 9-79703 publication (patent documentation 1) Temp. expansion valve in past as Temp. expansion valve.The Temp. expansion valve (temperature-type expansion valve) of patent documentation 1 possesses the temperature sensing tube be arranged on the outlet conduit of vaporizer, and the diaphragm apparatus (unit portion 4 ') be communicated with this temperature sensing tube is installed on the valve casing (cap assembly 40) of valve body.Diaphragm apparatus is formed cover body by with the stamping forming covers 56 such as stainless steel and holding element 55, and in this cover body, arrange the pressure-sensitive room (the first pressure chamber 50) and equal pressure chamber (the second pressure chamber 51) that are divided by barrier film.In pressure-sensitive room, import the encapsulation gas of temperature sensing tube, in equal pressure chamber, import refrigerant pressure.
The holding element (lower cover) of the cover body of diaphragm apparatus has the cylindrical part be communicated with equal pressure chamber in its lower end, valve casing has the cylindrical part of leading to valve body from diaphragm apparatus side.And, by making the external thread part of the cylindrical part of internal thread part and valve casing be screwed in the cylindrical part of holding element, and make cover body be attached to valve casing.The seal construction of this bound fraction makes following structure, namely, the underpart of the cylindrical part of holding element is abutted with the end difference of the cylindrical part of valve casing, and contacts seal junction by this underpart with the face of end difference and divide.
But in this Temp. expansion valve, the pressure in the cover body of diaphragm apparatus becomes high pressure, thus require, at the bound fraction of the cylindrical part of cover body and the cylindrical part of valve body, there is higher sealing.
In addition, in the technology in conjunction with two cylindrical part, there is technology disclosed in such as Japanese Kohyo 4-503559 publication (patent documentation 2) as this cylindrical part of sealing seal construction between the two.The technology of this patent documentation 2 is that interpolation is closed with disk 69 in the cylindrical part 62 in the outside being formed with internal thread part, and combines in the cylindrical part making the cylindrical part 71 of the inner side being formed with external thread part be screwed outside.Contact with the face of the conical surface (supporting surface 65) of inner circumferential of cylindrical part 62 outside being formed at the conical surface of the abutting part 66 of the end of disk 69 by being formed to close and sealing between the inside of cylindrical part 62 in outside and the cylindrical part 71 of inner side.
Patent documentation 1: Japanese Unexamined Patent Publication 9-79703 publication
Patent documentation 2: Japanese Kohyo 4-503559 publication
As described in Patent Document 1, only utilize external thread part and internal thread part to guarantee each other to the cover body of the diaphragm apparatus that is threaded and valve casing airtight in Temp. expansion valve, if thus the cylindrical part (cylindrical part of holding element) of cover body side is out of shape because of the pressure increase of equal pressure chamber, then cause the surface of contact (sealing surface) of cylindrical part underpart and end difference to misplace, there is the problem that cannot keep sealing and so on.In addition, if the sealing surface of both sides is made the conical surface as patent documentation 2, exist once the cylindrical part of a side is out of shape, the same problem of sealing surface dislocation and so on.
Summary of the invention
Problem to be solved by this invention is making outside thread and internal thread be screwed in conjunction with two cylindrical part, and in this cylindrical part fill fluid device element in, improve the sealing of bound fraction of two cylindrical part.
The seal construction of first scheme, it is in conjunction with the first cylindrical part and the second cylindrical part, and the first cylindrical part of the device element of fill fluid in this first cylindrical part and the second cylindrical part and the bound fraction of the second cylindrical part are sealed, it is characterized in that, sealing is configured to form external thread part in the periphery of above-mentioned first cylindrical part from the open end of this first cylindrical part, and form internal thread part in the inner circumferential of above-mentioned second cylindrical part, the primary sealing area of the ring-type centered by the axis of this first cylindrical part is formed in the position of the side contrary with the above-mentioned open end of above-mentioned external thread part of the periphery of above-mentioned first cylindrical part, formed with the axis of this second cylindrical part ring-type that is rotating center at the open end of above-mentioned second cylindrical part, the area that can be contained in above-mentioned primary sealing area is less than the secondary sealing area of this primary sealing area, above-mentioned primary sealing area is crimped and above-mentioned secondary sealing area comes in conjunction with the first cylindrical part and the second cylindrical part by making above-mentioned external thread part and above-mentioned internal thread part be screwed, the at least any one party of above-mentioned primary sealing area and above-mentioned secondary sealing area makes the conical surface favoured with the plane of above-mentioned axis vertical take-off, thus utilize the thrust produced by above-mentioned external thread part and tightening of internal thread part to produce inside stress at the open end of above-mentioned second cylindrical part.
The seal construction of alternative plan is the seal construction described in first scheme, it is characterized in that, the above-mentioned primary sealing area of above-mentioned first cylindrical part is the above-mentioned conical surface, and above-mentioned secondary sealing area is the tabular surface perpendicular to axis.
The seal construction of third program is the seal construction described in first scheme, it is characterized in that, the above-mentioned primary sealing area of above-mentioned first cylindrical part is the tabular surface perpendicular to above-mentioned axis, and above-mentioned secondary sealing area is the above-mentioned conical surface.
The seal construction of fourth program is the seal construction according to any one of the first to third program, it is characterized in that, above-mentioned first cylindrical part is brass, and above-mentioned second cylindrical part is stainless steel.
The Temp. expansion valve of the 5th scheme, it possesses and utilizes valve body to carry out opening and closing to be formed at the valve interface on valve casing and to control the valve body of the flowing of refrigerant and utilize barrier film to divide the diaphragm apparatus forming compression chamber and equal pressure chamber in cover body, and utilize according to the pressure of above-mentioned compression chamber and the pressure reduction of pressure of above-mentioned equal pressure chamber, the above-mentioned barrier film of action and above-mentioned valve body control the valve opening of above-mentioned valve interface, it is characterized in that, be configured to possess the seal construction according to any one of above-mentioned first scheme to fourth program, above-mentioned valve casing has above-mentioned first cylindrical part of the cylindrical shape of the above-mentioned valve body of folding and unfolding, and the cover body of above-mentioned diaphragm apparatus has above-mentioned second cylindrical part of the cylindrical shape be communicated with above-mentioned equal pressure chamber, above-mentioned primary sealing area is crimped and above-mentioned cover body is attached to above-mentioned valve casing by above-mentioned secondary sealing area by making above-mentioned external thread part and above-mentioned internal thread part be screwed.
Effect of the present invention is as follows.
According to the seal construction of first scheme, due to by making external thread part and internal thread part be screwed and be crimped onto by the secondary sealing area of the second cylindrical part on the primary sealing area of the first cylindrical part in conjunction with the first cylindrical part and the second cylindrical part, and the thrust utilizing the conical surface of at least any one party of primary sealing area and secondary sealing area also to utilize to produce because of external thread part and tightening of internal thread part produces stress inwardly at the open end of the second cylindrical part, thus can prevent from causing the sealing surface be made up of primary sealing area and secondary sealing area to move because of the pressure increase of the fluid in the first cylindrical part and the second cylindrical part, therefore, even if also can sealing be guaranteed when fluid becomes high pressure.If the hardness of the material of hardness ratio first cylindrical part of the material of the second cylindrical part is high, being then absorbed in primary sealing area at least partially of secondary sealing area, thus can prevent the open end of the second cylindrical part from moving laterally further.
According to the seal construction of alternative plan, it is tabular surface perpendicular to axis that this structure makes secondary sealing area, the outer edge of above-mentioned primary sealing area above-mentioned secondary sealing area when moving to screw-in direction of above-mentioned first cylindrical part abuts with primary sealing area at first, and a part for the conical surface of primary sealing area is there is in the side that the outer edge than secondary sealing area is also outer, thus can prevent the open end of the second cylindrical part from moving laterally further from mechanical angle, thus can sealing be guaranteed.
According to the seal construction of third program, the effect identical with first scheme can be obtained.
According to the seal construction of fourth program, first cylindrical part is brass, second cylindrical part is stainless steel, even if thus the inner edge portion of secondary sealing area or outer edge abut primary sealing area, inner edge portion or outer edge are also difficult to distortion, this point can make this secondary sealing area reliably be absorbed in primary sealing area, and can reliably prevent the open end of the second cylindrical part from moving laterally, thus can guarantee sealing.
According to the Temp. expansion valve of the 5th scheme, the sealing between valve casing and diaphragm apparatus can be guaranteed by the action effect according to any one of first scheme to fourth program.
Accompanying drawing explanation
Fig. 1 is the enlarged partial sectional view of the Temp. expansion valve of embodiments of the present invention.
Fig. 2 is the major component amplification view of the first mode of execution of the seal construction of the Temp. expansion valve representing embodiment of the present invention.
Fig. 3 is the major component amplification view of the second mode of execution of the seal construction of the Temp. expansion valve representing embodiment of the present invention.
Fig. 4 is the major component amplification view of the 3rd mode of execution of the seal construction of the Temp. expansion valve representing embodiment of the present invention.
Fig. 5 is the longitudinal sectional view of the Temp. expansion valve of embodiments of the present invention.
Symbol description
1-first cylindrical part, 11-external thread part, 12-end difference, 12A-primary sealing area, 2-second cylindrical part, 21-internal thread part, 22-ridge, 22A-secondary sealing area, 22A1-inner edge portion, 22A2-outer edge, 10-valve casing, 10c-valve interface, 20-diaphragm apparatus, 20a-upper cover, 20b-lower cover, 20c-barrier film, 30-valve body.
Embodiment
The mode of execution of seal construction of the present invention and Temp. expansion valve is described with reference to the accompanying drawings.Fig. 1 is the enlarged partial sectional view of the Temp. expansion valve of mode of execution, Fig. 2 is the major component amplification view of the first mode of execution of the seal construction of the Temp. expansion valve representing mode of execution, Fig. 3 is the major component amplification view of the second mode of execution of the seal construction of the Temp. expansion valve representing mode of execution, Fig. 4 is the major component amplification view of the 3rd mode of execution of the seal construction of the Temp. expansion valve representing mode of execution, and Fig. 5 is the longitudinal sectional view of the Temp. expansion valve of mode of execution.
The Temp. expansion valve of this mode of execution has the brazen valve casing 10 and diaphragm apparatus 20 that form valve body.Valve casing 10 is formed the first interface 10a being connected with first side connecting tube 10a1 and the second interface 10b being connected with second side connecting tube 10b1, and is formed with valve interface 10c between first interface 10a and the second interface 10b.In addition, valve casing 10 is formed with the Jun Ya road 10d being connected with balance pipe 10d1.First side connecting tube 10a1 is connected with the outlet side pipeline of condenser, and second side connecting tube 10b1 is connected with the inlet side pipeline of vaporizer.In addition, balance pipe 10d1 is connected with the outlet side pipeline of vaporizer.
Be formed with the first cylindrical part 1 of drum in diaphragm apparatus 20 side of valve casing 10, this first cylindrical part 1 is formed the guide hole 1a of first interface 10a in side mouth.This guide hole 1a is in the columnar shape being axis L for one end and with the central shaft of valve interface 10c with valve interface 10c side, and the side contrary with valve interface 10c is to diaphragm apparatus 20 inner opening.Valve body 30 is configured with in guide hole 1a.Valve body 30 has and is positioned at the valve portion 30a of the second interface 10b side relative to valve interface 10c and has clearance relative to the inner peripheral surface of guide hole 1a and embed the columned pin portion 30b of guide hole 1a.Thus, valve body 30 is movably contained in guide hole 1a along axis L, by the movement along axis L direction, and valve portion 30a open and close valve interface 10c.
Be provided with sealed member 40 on the top of pin portion 30b by pressing component 40a, further, be provided with block 50 in the end of this pin portion 30b, valve body 30 is linked by the barrier film 20c of block 50 with diaphragm apparatus 20.In addition, be formed in the bottom of valve interface 10c with the mounting hole 10e of the axis L substantially cylindrical shape that is axle, be provided with in mounting hole 10e and regulate spindle 10f.And, regulate the adjustable active force to valve body 30 produced by Regulation spring 10g of spindle 10f by rotating.Adjustable degree of superheat setting thus.
Diaphragm apparatus 20 is by forming " cover body " by the upper cover 20a of stainless steel and lower cover 20b.Between upper cover 20a and lower cover 20b, possess barrier film 20c, inner being drawn by this barrier film 20c of the cover body be made up of upper cover 20a and lower cover 20b makes compression chamber 20A and equal pressure chamber 20B.Equal pressure chamber 20B is connected by the above-mentioned Jun Ya road 10d of valve casing 10 and the outlet side pipeline of vaporizer, imports evaporating pressure at this equal pressure chamber 20B.
Compression chamber 20A is linked by capillary tube 20d and temperature sensing tube 20e.In addition, in temperature sensing tube 20e, capillary tube 20d and compression chamber 20A, be packaged with such as identical with the refrigerant of freeze cycle gas (and liquid), this temperature sensing tube 20e is installed on the outlet side pipeline of vaporizer.Thus, the interior pressure of compression chamber 20A changes according to the temperature detected by temperature sensing tube 20e.And, barrier film 20c displacement according to the pressure difference of compression chamber 20A and equal pressure chamber 20B, and this is displaced through block 50 and is delivered to valve body 30.Utilize this formation, control the aperture of the valve interface 10c of the secondary pipeline of the pipeline flow-direction vaporizer side making refrigerant from condenser side according to the detected temperatures of temperature sensing tube 20e and the pressure reduction of evaporating pressure, and the degree of superheat of carrying out freeze cycle controls.
The second cylindric cylindrical part 2 is formed in the bottom of lower cover 20b.External thread part 11 is formed in the periphery of above-mentioned first cylindrical part 1 of valve casing 10.Internal thread part 21 is formed in the inner circumferential of the second cylindrical part 2.And diaphragm apparatus 20 is screwed by the external thread part 11 of the internal thread part 21 and the first cylindrical part 1 that make the second cylindrical part 2 and is installed on valve casing 10.
In addition, the end difference 12 that diameter is greater than external thread part 11 is formed in the position of the side contrary with the open end 1A of external thread part 11 of the periphery of the first cylindrical part 1.And the face relative with the second cylindrical part 2 of this end difference 12 becomes with the primary sealing area 12A of the axis L of the first cylindrical part 1 ring-type that is rotating center.The ridge 22 of round is formed at the open end 2A of the second cylindrical part 2.And the opposing side of the primary sealing area 12A side of this ridge 22 becomes with the secondary sealing area 22A of the axis L of the second cylindrical part 2 ring-type that is rotating center.In addition, as shown in Figures 2 and 3, the width D 1 of the radial direction of primary sealing area 12A is greater than the width D 2 of the radial direction of secondary sealing area 22A, and secondary sealing area 22A is positioned at the position falling into primary sealing area 12A.Thus, the area of secondary sealing area 22A is less than the area of primary sealing area 12A.In addition, axis L is the axis that the first cylindrical part 1 and the second cylindrical part 2 share.
The following describes each embodiment of the seal construction according to primary sealing area 12A and secondary sealing area 22A.In addition, although Fig. 2 ~ Fig. 4 is the enlarged view of the dot and dash line part in left side in Fig. 1, unitary construction is made and is made the section of Fig. 2 ~ Fig. 4 with the structure of axis L for solid of rotation when running shaft rotates.Fig. 2 is the figure representing the first embodiment, represents the state that the second cylindrical part 2 is screwed into gradually with relative first cylindrical part 1 of the order of Fig. 2 (A), Fig. 2 (B), Fig. 2 (C).With regard to the first embodiment, the secondary sealing area 22A of the second cylindrical part 2 is the tabular surface perpendicular to axis L.And primary sealing area 12A is that the conical surface makes outer edge 22A2(Fig. 2 (B) of secondary sealing area 22A) abut with primary sealing area 12A at first with the movement being screwed into direction (arrow R direction) of the second cylindrical part 2.
If drive on boldly to being screwed into direction when abutting with primary sealing area 12A at first from the outer edge 22A2 of secondary sealing area 22A, then because primary sealing area 12A makes the conical surface thus at ridge 22(open end 2A) generation stress inwardly, the at least outer edge 22A2 of secondary sealing area 22A is absorbed in primary sealing area 12A, thus can prevent the open end 2A of the second cylindrical part 2 from moving laterally.Sealing can be guaranteed thus.In addition, as shown in Fig. 2 (C), if make the relative primary sealing area 12A of secondary sealing area 22A be absorbed in completely, then reliably can prevent the open end 2A of the second cylindrical part 2 from moving laterally further, and can sealing be guaranteed.
Fig. 3 is the figure representing the second embodiment, represents the state that the second cylindrical part 2 is screwed into gradually with relative first cylindrical part 1 of the order of Fig. 3 (A), Fig. 3 (B), Fig. 3 (C).With regard to the second embodiment, the primary sealing area 12A of the first cylindrical part 1 is the tabular surface perpendicular to axis L.And secondary sealing area 22A is that the conical surface makes inner edge portion 22A1(Fig. 3 (B) of secondary sealing area 22A) abut with primary sealing area 12A at first with the movement being screwed into direction (arrow R direction) of the second cylindrical part 2.
If drive on boldly to being screwed into direction when abutting with primary sealing area 12A at first from the inner edge portion 22A1 of secondary sealing area 22A, then because secondary sealing area 22A makes the conical surface thus at ridge 22(open end 2A as the state of Fig. 3 (B)) generation stress inwardly, secondary sealing area 22A is absorbed in primary sealing area 12A at least partially, thus can prevent the open end 2A of the second cylindrical part 2 from moving laterally.Sealing can be guaranteed thus.In addition, as shown in Fig. 3 (C), if make secondary sealing area 22A be absorbed in completely relative to primary sealing area 12A, then reliably can prevent the open end 2A of the second cylindrical part 2 from moving laterally further, and can sealing be guaranteed.
In above embodiment, any one illustrating primary sealing area 12A and secondary sealing area 22A is the example of the tabular surface perpendicular to axis L, but primary sealing area 12A and secondary sealing area 22A both sides can for the conical surfaces such as the 3rd embodiment shown in Fig. 4.In this case, the secondary sealing area 22A of the second cylindrical part 2 makes the conical surface tilted a little, and primary sealing area 12A is that the conical surface makes outer edge 22A2(Fig. 4 (B) of secondary sealing area 22A) abut with primary sealing area 12A at first with the movement being screwed into direction (arrow R direction) of the second cylindrical part 2.
In the above embodiment, although describe seal construction of the present invention with the situation between the valve casing of seal temperature expansion valve and diaphragm apparatus, when two cylinder parts are screwed in conjunction be suitable for mode of execution at its binding site the structure of the first cylindrical part and the second cylindrical part also can.
Claims (5)
1. a seal construction, it is in conjunction with the first cylindrical part and the second cylindrical part, and in this first cylindrical part and the second cylindrical part, the first cylindrical part of the device element of fill fluid and the bound fraction of the second cylindrical part seal, and it is characterized in that,
Be configured to form external thread part in the periphery of above-mentioned first cylindrical part from the open end of this first cylindrical part, and form internal thread part in the inner circumferential of above-mentioned second cylindrical part,
The primary sealing area of the ring-type centered by the axis of this first cylindrical part is formed in the position of the periphery of above-mentioned first cylindrical part, contrary relative to the above-mentioned open end of above-mentioned external thread part side,
The open end of above-mentioned second cylindrical part formed with the axis of this second cylindrical part ring-type that is rotating center, the area that can be contained in above-mentioned primary sealing area is less than the secondary sealing area of this primary sealing area,
Above-mentioned primary sealing area is crimped and above-mentioned secondary sealing area comes in conjunction with the first cylindrical part and the second cylindrical part by making above-mentioned external thread part and above-mentioned internal thread part be screwed,
At least any one party of above-mentioned primary sealing area and above-mentioned secondary sealing area makes the conical surface favoured with the plane of above-mentioned axis vertical take-off, thus utilize the thrust produced by above-mentioned external thread part and tightening of internal thread part to produce inside stress at the open end of above-mentioned second cylindrical part
Secondary sealing area is absorbed in primary sealing area,
When relative first cylindrical part of second cylindrical part is screwed into, above-mentioned primary sealing area is the conical surface that the outer edge being screwed into the mobile and above-mentioned secondary sealing area in direction with above-mentioned second cylindrical part is abutted with this primary sealing area at first, or above-mentioned secondary sealing area is the conical surface making the inner edge portion being screwed into the mobile and above-mentioned secondary sealing area in direction with above-mentioned second cylindrical part abut with above-mentioned primary sealing area at first.
2. seal construction according to claim 1, is characterized in that,
The above-mentioned primary sealing area of above-mentioned first cylindrical part is the above-mentioned conical surface, and above-mentioned secondary sealing area is the tabular surface perpendicular to axis.
3. seal construction according to claim 1, is characterized in that,
The above-mentioned primary sealing area of above-mentioned first cylindrical part is the tabular surface perpendicular to above-mentioned axis, and above-mentioned secondary sealing area is the above-mentioned conical surface.
4. seal construction according to any one of claim 1 to 3, is characterized in that,
Above-mentioned first cylindrical part is brass, and above-mentioned second cylindrical part is stainless steel.
5. a Temp. expansion valve, it possesses and utilizes valve body to carry out opening and closing to be formed at the valve interface on valve casing and to control the valve body of the flowing of refrigerant and utilize barrier film to divide the diaphragm apparatus forming compression chamber and equal pressure chamber in cover body, and utilize according to the pressure of above-mentioned compression chamber and the pressure reduction of pressure of above-mentioned equal pressure chamber, the above-mentioned barrier film of action and above-mentioned valve body control the valve opening of above-mentioned valve interface, it is characterized in that
Be configured to the seal construction possessed according to any one of the claims 1 to 4,
Above-mentioned valve casing has above-mentioned first cylindrical part of the cylindrical shape of the above-mentioned valve body of folding and unfolding, and the cover body of above-mentioned diaphragm apparatus has above-mentioned second cylindrical part of the cylindrical shape be communicated with above-mentioned equal pressure chamber,
Above-mentioned primary sealing area is crimped and above-mentioned cover body is attached to above-mentioned valve casing by above-mentioned secondary sealing area by making above-mentioned external thread part and above-mentioned internal thread part be screwed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011171640A JP5535997B2 (en) | 2011-08-05 | 2011-08-05 | Seal structure and temperature expansion valve |
| JP2011-171640 | 2011-08-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102913656A CN102913656A (en) | 2013-02-06 |
| CN102913656B true CN102913656B (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210284399.1A Active CN102913656B (en) | 2011-08-05 | 2012-08-06 | Seal structure and a temperature expansion valve |
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| Country | Link |
|---|---|
| JP (1) | JP5535997B2 (en) |
| CN (1) | CN102913656B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6543199B2 (en) * | 2016-01-15 | 2019-07-10 | 株式会社リメディオ | Nozzle, dry spinning apparatus, nozzle set, and nozzle mounting method |
| JP2017156964A (en) * | 2016-03-01 | 2017-09-07 | 株式会社鷺宮製作所 | Capacity control valve |
| JP6516696B2 (en) * | 2016-03-01 | 2019-05-22 | 株式会社鷺宮製作所 | Volume adjustment valve |
| GB2549486B (en) * | 2016-04-18 | 2020-12-02 | Ford Global Tech Llc | Improvements in or relating to metal-to-metal sealing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5005370A (en) * | 1988-12-19 | 1991-04-09 | Fuji Koki Mfg. Co. Ltd. | Thermal expansion valve |
| CN1193094A (en) * | 1997-03-11 | 1998-09-16 | 株式会社不二工机 | Expansion valve |
| JP4484656B2 (en) * | 2004-10-01 | 2010-06-16 | 株式会社鷺宮製作所 | Temperature-sensitive control valve and refrigeration cycle device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0241437Y2 (en) * | 1985-06-24 | 1990-11-05 | ||
| JPH0460280A (en) * | 1990-06-27 | 1992-02-26 | Japan Atom Energy Res Inst | Metallic gasket |
| JPH0979703A (en) * | 1995-09-08 | 1997-03-28 | Denso Corp | Thermo-sensitive expansion valve |
| FR2823826B1 (en) * | 2001-04-23 | 2003-07-25 | Commissariat Energie Atomique | FLEXIBLE ELASTIC METALLIC SEAL WITH HIGH-SPEED PARTS |
| JP4498661B2 (en) * | 2001-07-11 | 2010-07-07 | 株式会社バックス・エスイーブイ | Metal gasket for vacuum apparatus and method for manufacturing the same |
| JP2004308791A (en) * | 2003-04-07 | 2004-11-04 | Nasco Fitting Kk | Joint structure, plug, and pipe joint |
| JP2007327672A (en) * | 2006-06-07 | 2007-12-20 | Tgk Co Ltd | Expansion valve |
-
2011
- 2011-08-05 JP JP2011171640A patent/JP5535997B2/en active Active
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2012
- 2012-08-06 CN CN201210284399.1A patent/CN102913656B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5005370A (en) * | 1988-12-19 | 1991-04-09 | Fuji Koki Mfg. Co. Ltd. | Thermal expansion valve |
| CN1193094A (en) * | 1997-03-11 | 1998-09-16 | 株式会社不二工机 | Expansion valve |
| JP4484656B2 (en) * | 2004-10-01 | 2010-06-16 | 株式会社鷺宮製作所 | Temperature-sensitive control valve and refrigeration cycle device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013036505A (en) | 2013-02-21 |
| JP5535997B2 (en) | 2014-07-02 |
| CN102913656A (en) | 2013-02-06 |
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