CN102913656A - Seal structure and a temperature expansion valve - Google Patents

Seal structure and a temperature expansion valve Download PDF

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Publication number
CN102913656A
CN102913656A CN2012102843991A CN201210284399A CN102913656A CN 102913656 A CN102913656 A CN 102913656A CN 2012102843991 A CN2012102843991 A CN 2012102843991A CN 201210284399 A CN201210284399 A CN 201210284399A CN 102913656 A CN102913656 A CN 102913656A
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mentioned
cylindrical part
sealing area
valve
primary sealing
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CN102913656B (en
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高田裕正
别所直登
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Saginomiya Seisakusho Inc
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Saginomiya Seisakusho Inc
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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

Seal construction and Temp. expansion valve
Technical field
The periphery that the present invention relates to a cylindrical part in two cylindrical part forms outside thread and interior week forms internal thread in another cylindrical part, this outside thread is combined and in conjunction with two cylindrical part with the internal thread screw thread, and in this cylindrical part in the device element of fill fluid, the seal construction of the bound fraction of two cylindrical part of sealing and the Temp. expansion valve that has used the sealing structure.
Background technique
There is for example disclosed Temp. expansion valve in Japanese kokai publication hei 9-79703 communique (patent documentation 1) in past as Temp. expansion valve.The Temp. expansion valve of patent documentation 1 (temperature-type expansion valve) possesses the temperature sensing tube on the outlet conduit that is installed in vaporizer, and the diaphragm apparatus that is communicated with this temperature sensing tube (unit section 4 ') is installed on the valve casing (cap assembly 40) of valve body.Diaphragm apparatus is by consisting of cover body with the stamping forming cover 56 such as stainless steel and support parts 55, and the pressure-sensitive chamber (the first pressure chamber 50) of being divided by barrier film is set in this cover body and all presses chamber (the second pressure chamber 51).In the pressure-sensitive chamber, import the encapsulation gas of temperature sensing tube, all pressing importing refrigerant pressure in the chamber.
The support parts (lower cover) of the cover body of diaphragm apparatus have the cylindrical part that is communicated with equal chambers of pressure in its lower end, valve casing has the cylindrical part of leading to valve body from the diaphragm apparatus side.And, make the external thread part screw thread combination of the cylindrical part of internal thread part and valve casing by the cylindrical part at the support parts, and make cover body be attached to valve casing.The seal construction of this bound fraction is made following structure, namely, make the end difference butt of the cylindrical part of the underpart of cylindrical part of support parts and valve casing, and contacts the seal junction to divide by the face of this underpart and end difference.
Yet in this Temp. expansion valve, the pressure in the cover body of diaphragm apparatus becomes high pressure, thereby requires to have higher sealing at the bound fraction of the cylindrical part of the cylindrical part of cover body and valve body.
In addition, in the technology in conjunction with two cylindrical part, as sealing this cylindrical part seal construction between the two disclosed technology in the flat 4-503559 communique of Japanese Unexamined Patent Application Publication (patent documentation 2) is for example arranged.The technology of this patent documentation 2 be in the sealing of cylindrical part 62 interpolations in the outside that is formed with internal thread part with disk 69, and make cylindrical part 71 screw threads of the inboard that is formed with external thread part be attached to combination in the cylindrical part in the outside.Between the inside of the cylindrical part 62 in the outside and the inboard cylindrical part 71 by being formed at sealing with the conical surface of the abutting part 66 of the end of disk 69 and the face of the conical surface (supporting surface 65) in the interior week of the cylindrical part 62 outside being formed at contacts and seals.
Patent documentation 1: Japanese kokai publication hei 9-79703 communique
Patent documentation 2: the flat 4-503559 communique of Japanese Unexamined Patent Application Publication
As patent documentation 1, only be to utilize external thread part and internal thread part the be threaded cover body of diaphragm apparatus and valve casing and guarantee each other airtight in Temp. expansion valve, if thereby the cylindrical part of cover body side (cylindrical part of support parts) is out of shape because of the pressure rise of all pressing the chamber, then cause surface of contact (sealing surface) dislocation of cylindrical part underpart and end difference, existence can't keep the problem of sealing and so on.In addition, if in case as patent documentation 2, both sides' sealing surface made the cylindrical part that then there is a side in the conical surface and is out of shape then the same problem of sealing surface dislocation and so on.
Summary of the invention
Problem to be solved by this invention is in that outside thread is combined with the internal thread screw thread in conjunction with two cylindrical part, and in the device element of fill fluid, improves the sealing of the bound fraction of two cylindrical part in this cylindrical part.
The seal construction of the 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 sealed, it is characterized in that, sealing constitutes in the periphery of above-mentioned the first cylindrical part and forms external thread part from the open end of this first cylindrical part, and the interior week formation internal thread part in above-mentioned the second cylindrical part, form the primary sealing area of the ring-type centered by the axis of this first cylindrical part in the position of periphery opposite with above-mentioned open end above-mentioned external thread part the side of above-mentioned the first cylindrical part, form ring-type take the axis of this second cylindrical part as rotating center at the open end of above-mentioned the second cylindrical part, can be contained in the interior area of above-mentioned primary sealing area less than the secondary sealing area of this primary sealing area, the above-mentioned primary sealing area of crimping and above-mentioned secondary sealing area come in conjunction with the first cylindrical part and the second cylindrical part by making the combination of above-mentioned external thread part and above-mentioned internal thread part screw thread, the at least any one party of above-mentioned primary sealing area and above-mentioned secondary sealing area is made the conical surface that favours with the plane of above-mentioned axis quadrature, thereby utilizes the thrust that is produced by above-mentioned external thread part and tightening of internal thread part to produce inside stress at the open end of above-mentioned the second cylindrical part.
The seal construction of alternative plan is the described seal construction of the first scheme, it is characterized in that, the above-mentioned primary sealing area of above-mentioned the 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 party's case is the described seal construction of the first scheme, it is characterized in that, the above-mentioned primary sealing area of above-mentioned the 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 cubic case be first to third party's case each described seal construction, it is characterized in that above-mentioned the first cylindrical part is brass, above-mentioned the second cylindrical part is stainless steel.
The Temp. expansion valve of the 5th scheme, it possesses and utilizes valve body to open and close to be formed at the valve interface on the valve casing and control the valve body that flows of refrigerant and utilize barrier film to divide in the cover body and the diaphragm apparatus that forms compression chamber and all press the chamber, and the valve opening of utilizing the above-mentioned barrier film that moves according to the pressure reduction of the pressure of above-mentioned compression chamber and above-mentioned pressure of all pressing the chamber and above-mentioned valve body to control above-mentioned valve interface, it is characterized in that, constitute and possess each described seal construction in the cubic case of above-mentioned the first scheme to the, above-mentioned valve casing has cylindraceous above-mentioned first cylindrical part of the above-mentioned valve body of folding and unfolding, and the cover body of above-mentioned diaphragm apparatus has cylindraceous above-mentioned the second cylindrical part that is communicated with above-mentioned all chambers of pressure, and the above-mentioned primary sealing area of crimping and above-mentioned secondary sealing area are attached to above-mentioned valve casing with above-mentioned cover body by making the combination of above-mentioned external thread part and above-mentioned internal thread part screw thread.
Effect of the present invention is as follows.
Seal construction according to the first scheme, since by make external thread part and internal thread part screw thread in conjunction with and the secondary sealing area of the second cylindrical part is crimped onto 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 that the conical surface and utilize that utilizes at least any one party of primary sealing area and secondary sealing area produces because of tightening of external thread part and internal thread part produces stress towards inside at the open end of the second cylindrical part, thereby can prevent from causing being moved by the sealing surface that primary sealing area and secondary sealing area consist of because of the pressure rise of the fluid in the first cylindrical part and the second cylindrical part, therefore, even if when fluid becomes high pressure, also can guarantee sealing.If the hardness of the material of hardness ratio first cylindrical part of the material of the second cylindrical part is high, then at least a portion of secondary sealing area is absorbed in the primary sealing area, thereby the open end that can further prevent the second cylindrical part is mobile laterally.
Seal construction according to alternative plan, this structure is made secondary sealing area and is the tabular surface perpendicular to axis, the outer edge of the above-mentioned primary sealing area of above-mentioned the first cylindrical part above-mentioned secondary sealing area when moving to screw-in direction at first with the primary sealing area butt, and than the outer edge of secondary sealing area also an outer side have the part of the conical surface of primary sealing area, thereby the open end that can further prevent the second cylindrical part from mechanical angle is mobile laterally, thereby can guarantee sealing.
According to the seal construction of third party's case, can access the effect identical with the first scheme.
Seal construction according to cubic case, the first cylindrical part is brass, the second cylindrical part is stainless steel, even if thereby the inner edge portion of secondary sealing area or outer edge butt primary sealing area, inner edge portion or outer edge also are difficult to distortion, this point can make this secondary sealing area be absorbed in the primary sealing area reliably, and can prevent reliably that the open end of the second cylindrical part is mobile laterally, thereby can guarantee sealing.
According to the Temp. expansion valve of the 5th scheme, can guarantee sealing between valve casing and the diaphragm apparatus by each described action effect in the cubic case of the first scheme to the.
Description of drawings
Fig. 1 is the local amplification 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 seal construction of the Temp. expansion valve of expression embodiment of the present invention.
Fig. 3 is the major component amplification view of the second mode of execution of seal construction of the Temp. expansion valve of expression embodiment of the present invention.
Fig. 4 is the major component amplification view of the 3rd mode of execution of seal construction of the Temp. expansion valve of expression 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-the first cylindrical part, 11-external thread part, 12-end difference, the 12A-primary sealing area, 2-the second cylindrical part, 21-internal thread part, the 22-ridge, 22A-secondary sealing area, 22A1-inner edge portion, the 22A2-outer edge, 10-valve casing, 10c-valve interface, the 20-diaphragm apparatus, 20a-loam cake, 20b-lower cover, the 20c-barrier film, the 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 local amplification 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 seal construction of the Temp. expansion valve of expression mode of execution, Fig. 3 is the major component amplification view of the second mode of execution of seal construction of the Temp. expansion valve of expression mode of execution, Fig. 4 is the major component amplification view of the 3rd mode of execution of seal construction of the Temp. expansion valve of expression 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 brazen valve casing 10 and the diaphragm apparatus 20 that consists of valve body.Be formed with the first interface 10a that is connected with first side connecting tube 10a1 and be connected with the second interface 10b of second side connecting tube 10b1 at valve casing 10, and between first interface 10a and the second interface 10b, be formed with valve interface 10c.In addition, be formed with all pressures road 10d that is connected with balance pipe 10d1 at valve casing 10.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 sides of valve casing 10, be formed with first interface 10a at the guide hole 1a of side mouth in this first cylindrical part 1.This guide hole 1a is take valve interface 10c side as an end and the columnar shape take the central shaft of valve interface 10c as axis L, and side direction diaphragm apparatus 20 inner openings opposite with valve interface 10c.In guide hole 1a, dispose valve body 30.Valve body 30 has with respect to valve interface 10c and is positioned at the 30a of valve section of the second interface 10b side and has clearance and embed the columned pin 30b of section of guide hole 1a with respect to the inner peripheral surface of guide hole 1a.Thus, valve body 30 moves along axis L and is contained in freely in the guide hole 1a, by the movement along axis L direction, and the 30a of valve section open and close valve interface 10c.
Top at the 30b of pin section is equipped with sealed member 40 by pressing component 40a, has again, in the end of the 30b of this pin section block 50 is installed, and valve body 30 links by the barrier film 20c of block 50 with diaphragm apparatus 20.In addition, be formed with the mounting hole 10e of the general cylindrical shape shape take axis L as axle in the bottom of valve interface 10c, in mounting hole 10e, be equipped with and regulate spindle 10f.And, regulate spindle 10f by rotation and can regulate the active force to valve body 30 that is produced by Regulation spring 10g.Can regulate thus the degree of superheat sets.
Diaphragm apparatus 20 consists of " cover body " by loam cake 20a and the lower cover 20b by stainless steel.Possess barrier film 20c between loam cake 20a and lower cover 20b, the cover body inside that is made of loam cake 20a and lower cover 20b is drawn by this barrier film 20c and is made compression chamber 20A and all press chamber 20B.All press chamber 20B to connect by the above-mentioned outlet side pipeline of 10d and vaporizer of all pressing of valve casing 10, all press chamber 20B to import evaporating pressure at this.
Compression chamber 20A links by capillary tube 20d and temperature sensing tube 20e.In addition, for example be packaged with the gas (and liquid) identical with the refrigerant of freeze cycle in temperature sensing tube 20e, capillary tube 20d and compression chamber 20A, this temperature sensing tube 20e is installed on the outlet side pipeline of vaporizer.Thus, the interior pressure of compression chamber 20A is according to being changed by the detected temperature of temperature sensing tube 20e.And barrier film 20c is according to compression chamber 20A displacement with the pressure difference of all pressing chamber 20B, and this displacement is delivered to valve body 30 by block 50.Utilize this formation, control according to the pressure reduction of the detected temperatures of temperature sensing tube 20e and evaporating pressure and make refrigerant from the aperture of the valve interface 10c of the secondary pipeline of a pipeline flow-direction vaporizer side of condenser side, and carry out the degree of superheat control of freeze cycle.
Be formed with the second cylindrical part 2 cylindraceous in the bottom of lower cover 20b.Periphery in above-mentioned first cylindrical part 1 of valve casing 10 is formed with external thread part 11.Be formed with internal thread part 21 interior week in the second cylindrical part 2.And, diaphragm apparatus 20 by making the second cylindrical part 2 internal thread part 21 and external thread part 11 screw threads of the first cylindrical part 1 in conjunction with being installed on valve casing 10.
In addition, be formed with diameter greater than the end difference 12 of external thread part 11 in the position of periphery opposite with open end 1A external thread part 11 the side of the first cylindrical part 1.And the face relative with the second cylindrical part 2 of this end difference 12 becomes the primary sealing area 12A take the axis L of the first cylindrical part 1 as the ring-type of rotating center.Be formed with the ridge 22 of round 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 the secondary sealing area 22A take the axis L of the second cylindrical part 2 as the ring-type of 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 that falls 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 according to the seal construction of 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 the left side among Fig. 1, the structure of the solid of rotation when unitary construction is made the section that makes Fig. 2 ~ Fig. 4 and rotated take axis L as running shaft.Fig. 2 is expression the first embodiment's figure, represents the state that the second cylindrical part 2 is screwed into gradually with relative the 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 is so that outer edge 22A2(Fig. 2 (B) of secondary sealing area 22A) with the movement that is screwed into direction (arrow R direction) of the second cylindrical part 2 at first with primary sealing area 12A butt.
If begin to drive on boldly to being screwed into direction during at first with primary sealing area 12A butt 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) produce the stress towards inside, the at least outer edge 22A2 of secondary sealing area 22A is absorbed among the primary sealing area 12A, thereby can prevent that the open end 2A of the second cylindrical part 2 is mobile laterally.Can guarantee sealing thus.In addition, shown in Fig. 2 (C), if the relative primary sealing area 12A of secondary sealing area 22A is absorbed in fully, can prevents reliably further that then the open end 2A of the second cylindrical part 2 is mobile laterally, and can guarantee sealing.
Fig. 3 is expression the second embodiment's figure, represents the state that the second cylindrical part 2 is screwed into gradually with relative the 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 is so that inner edge portion 22A1(Fig. 3 (B) of secondary sealing area 22A) with the movement that is screwed into direction (arrow R direction) of the second cylindrical part 2 at first with primary sealing area 12A butt.
If begin to drive on boldly to being screwed into direction during at first with primary sealing area 12A butt from the inner edge portion 22A1 of secondary sealing area 22A, then because secondary sealing area 22A makes the conical surface as the state of Fig. 3 (B) thus at ridge 22(open end 2A) produce the stress towards inside, at least a portion of secondary sealing area 22A is absorbed among the primary sealing area 12A, thereby can prevent that the open end 2A of the second cylindrical part 2 is mobile laterally.Can guarantee sealing thus.In addition, shown in Fig. 3 (C), if secondary sealing area 22A is absorbed in fully with respect to primary sealing area 12A, can prevents reliably further that then the open end 2A of the second cylindrical part 2 is mobile laterally, and can guarantee sealing.
In above embodiment, any one that has represented primary sealing area 12A and secondary sealing area 22A is the example perpendicular to the tabular surface of axis L, but primary sealing area 12A and secondary sealing area 22A both sides can be for example conical surface as the 3rd embodiment shown in Figure 4.In this case, the secondary sealing area 22A of the second cylindrical part 2 makes a little the conical surface that tilts, and primary sealing area 12A is that the conical surface is so that outer edge 22A2(Fig. 4 (B) of secondary sealing area 22A) with the movement that is screwed into direction (arrow R direction) of the second cylindrical part 2 at first with primary sealing area 12A butt.
In the above embodiment, although with the valve casing of seal temperature expansion valve and the situation between the diaphragm apparatus, understand seal construction of the present invention, also can in the first cylindrical part of the applicable mode of execution of its binding site and the structure of the second cylindrical part in the situation of combination in that two cylinder parts are screwed into.

Claims (5)

1. seal construction, 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 and the bound fraction of the second cylindrical part seal in this first cylindrical part and the second cylindrical part, it is characterized in that,
Constitute in the periphery of above-mentioned the first cylindrical part and form external thread part from the open end of this first cylindrical part, and above-mentioned the second cylindrical part interior week form internal thread part,
Form the primary sealing area of the ring-type centered by the axis of this first cylindrical part in the position of side periphery, opposite with respect to the above-mentioned open end of above-mentioned external thread part of above-mentioned the first cylindrical part,
The open end of above-mentioned the second cylindrical part form ring-type take the axis of this second cylindrical part as rotating center, can be contained in area in the above-mentioned primary sealing area less than the secondary sealing area of this primary sealing area,
The above-mentioned primary sealing area of crimping and above-mentioned secondary sealing area come in conjunction with the first cylindrical part and the second cylindrical part by making the combination of above-mentioned external thread part and above-mentioned internal thread part screw thread,
At least any one party of above-mentioned primary sealing area and above-mentioned secondary sealing area is made the conical surface that favours with the plane of above-mentioned axis quadrature, thereby utilizes the thrust that is produced by above-mentioned external thread part and tightening of internal thread part to produce inside stress at the open end of above-mentioned the second cylindrical part.
2. seal construction according to claim 1 is characterized in that,
The above-mentioned primary sealing area of above-mentioned the 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 the 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. each described seal construction in 3 according to claim 1 is characterized in that,
Above-mentioned the first cylindrical part is brass, and above-mentioned the second cylindrical part is stainless steel.
5. Temp. expansion valve, it possesses and utilizes valve body to open and close to be formed at the valve interface on the valve casing and control the valve body that flows of refrigerant and utilize barrier film to divide in the cover body and the diaphragm apparatus that forms compression chamber and all press the chamber, and the valve opening of utilizing the above-mentioned barrier film that moves according to the pressure reduction of the pressure of above-mentioned compression chamber and above-mentioned pressure of all pressing the chamber and above-mentioned valve body to control above-mentioned valve interface, it is characterized in that
Constitute and possess each described seal construction in the claims 1 to 4,
Above-mentioned valve casing has cylindraceous above-mentioned first cylindrical part of the above-mentioned valve body of folding and unfolding, and the cover body of above-mentioned diaphragm apparatus has cylindraceous above-mentioned the second cylindrical part that is communicated with above-mentioned all chambers of pressure,
The above-mentioned primary sealing area of crimping and above-mentioned secondary sealing area are attached to above-mentioned valve casing with above-mentioned cover body by making the combination of above-mentioned external thread part and above-mentioned internal thread part screw thread.
CN201210284399.1A 2011-08-05 2012-08-06 Seal structure and a temperature expansion valve Active CN102913656B (en)

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JP2011171640A JP5535997B2 (en) 2011-08-05 2011-08-05 Seal structure and temperature expansion valve
JP2011-171640 2011-08-05

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CN107143675A (en) * 2016-03-01 2017-09-08 株式会社鹭宫制作所 Capacity adjusts valve
CN107143676A (en) * 2016-03-01 2017-09-08 株式会社鹭宫制作所 Capacity adjusts valve

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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
GB2549486B (en) * 2016-04-18 2020-12-02 Ford Global Tech Llc Improvements in or relating to metal-to-metal sealing

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JPH0979703A (en) * 1995-09-08 1997-03-28 Denso Corp Thermo-sensitive expansion valve
CN1193094A (en) * 1997-03-11 1998-09-16 株式会社不二工机 Expansion valve
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Publication number Priority date Publication date Assignee Title
CN107143675A (en) * 2016-03-01 2017-09-08 株式会社鹭宫制作所 Capacity adjusts valve
CN107143676A (en) * 2016-03-01 2017-09-08 株式会社鹭宫制作所 Capacity adjusts valve

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JP5535997B2 (en) 2014-07-02
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