CN100394126C - Expansion valve - Google Patents

Expansion valve Download PDF

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Publication number
CN100394126C
CN100394126C CNB2004100962949A CN200410096294A CN100394126C CN 100394126 C CN100394126 C CN 100394126C CN B2004100962949 A CNB2004100962949 A CN B2004100962949A CN 200410096294 A CN200410096294 A CN 200410096294A CN 100394126 C CN100394126 C CN 100394126C
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China
Prior art keywords
mentioned
valve body
spring
board
support unit
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CNB2004100962949A
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Chinese (zh)
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CN1621766A (en
Inventor
林宏
渡边和彦
吴羽敏道
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Fujikoki Corp
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Fujikoki Corp
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Publication of CN1621766A publication Critical patent/CN1621766A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06—Details of flow restrictors or expansion valves
    • F25B2341/068—Expansion valves combined with a sensor
    • F25B2341/0683—Expansion valves combined with a sensor the sensor is disposed in the suction line and influenced by the temperature or the pressure of the suction gas

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  • Temperature-Responsive Valves (AREA)

Abstract

The invention aims to improve the assembly structure of a vibration isolation spring and a support member for supporting a valve element of an expansion valve. The support member 8c' for supporting the valve element 8 has a projecting part P formed at the lower side peripheral edge part of a locking part 8c'' for locking a coil spring 8a, and a recessed part Q formed around a root part of the locking part 8c''. That is, a large diameter cylindrical part 8c''<SB>1</SB>is formed at the lower side center part of the locking part 8c'', and the recessed part Q is formed at the connection part. A small diameter cylindrical part 8c'<SB>1</SB>is formed at the upper face side center part of the locking part 8c'' to support the valve element, and the coil spring 8a is inserted into cylindrical part 8c''<SB>1</SB>and fixed. When the large diameter part 8c'<SB>1</SB>is inserted in a hole 8f<SB>3</SB>of a disk part 8f<SB>1</SB>of the vibration isolation spring 8f to mount the vibration isolation spring 8f between the coil spring 8a and the locking part 8c'', the disk part 8f<SB>1</SB>of the vibration isolation spring 8f abuts on the projecting part P of the locking part 8c'' to mount the vibration isolation spring 8f with the projecting part P as a support part.

Description

Expansion valve
Technical field
The present invention relates to constitute the expansion valve of kind of refrigeration cycle.
Background technology
Expansion valve has all kinds, but by the high pressure refrigerating channel that the high-pressure refrigerant that is sent to evaporimeter the is flow through formation throttle orifice that attenuates midway, swim side from it and valve body is set facing to it, according to the temperature and pressure of the low pressure refrigerant of exporting from evaporimeter, the expansion valve that makes valve body carry out switch motion is extensive use of.
This expansion valve as shown in Figure 2, is used in the kind of refrigeration cycle such as automotive air conditioning device (example with reference to patent documentation 1: the spy opens Fig. 5 in the 2003-302125 communique).Kind of refrigeration cycle 1 by by engine-driven compressor 2, the condenser 3 that is connected these compressor 2 waste side, the holding vessel 4 that is connected with this condenser 3, make liquid refrigerant adiabatic expansion in this holding vessel 4 become the expansion valve 5 of gas-liquid two-phase cold-producing medium and the evaporimeter 6 that is connected on this expansion valve 5 constitutes.Above-mentioned expansion valve 5 is positioned at kind of refrigeration cycle 1.
In expansion valve shown in Figure 25, valve body 30 mainly comprises: the throttle orifice 32a that forms between high pressure runner 32b that the high-pressure refrigerant that is sent to evaporimeter 6 flows through and low pressure runner 32c; From the spherical valve body 8 of cold-producing medium upstream side facing to above-mentioned throttle orifice 32a setting; Give the support component 8c of the valve body application of force facing to above-mentioned throttle orifice from upstream side; Be arranged on helical spring 8a between above-mentioned support component and the valve body for the power of above-mentioned support component being passed to above-mentioned valve body 8; According to the power part 36 that moves from the temperature of the low pressure refrigerant of evaporimeter 6 output; Be arranged between power part 36 and the valve body 8, drive rod 318 by sensing rod for temperature and action rod temperature-sensitive integrally formed, that insert in the throttle orifice, action according to above-mentioned power part 36, make above-mentioned valve body 8 with respect to above-mentioned throttle orifice 32a do near or away from move, thereby the refrigerant flow of throttle orifice is flow through in control.
Power part 36 comprises: by the film 36a that makes as the stainless steel of flexible metal thin plate; Mutually closely clamp above-mentioned film 36a, with above-mentioned film 36a as an interface, as upper cover plate 36d and lower cover the 36h tight wall of the upper pressure operating chamber 36b of two balancing gate pits of each self-forming up and down that is formed in it and bottom pressure operating chamber 36c, that make by stainless steel; Being used for will be as the key 36I among the pre-customized cryogen inclosure upper pressure operating chamber 36b of film drive medium, and bottom pressure operating chamber 36c is by being communicated with second channel 34 with the balancing orifice 36e that is formed centrally with throttle orifice 32a center line.Come the refrigerant vapour of flash-pot 6 to flow in the second channel 34, with the passage of passage 34 as vapor phase refrigerant, the pressure of this vapor phase refrigerant applies load for bottom pressure operating chamber 36c by balancing orifice 36e.In addition, form the mount pad 362 of tubular on lower cover 36h, mount pad 362 is secured together with valve body 30 by being screwed on the screwed hole 361.
The upper part 36k that temperature-sensitive drives rod 318 is separately made with it, and simultaneously, sensing rod for temperature and the excellent one of action are by for example being thin excellent 316 constituting of making of stainless steel.This upper part 36k is to be radially enlarged retainer 312 by an end that is against below the film 36a; Be to form jut 315 in the central, can be slidably inserted into the large-diameter portion 314 in the pressure operating chamber 36c of bottom and the support unit that constitutes with the other end.Furtherly, the upper end of rod 316 is entrenched in the inside of the jut 315 of large-diameter portion 314, and its lower end withstands on the valve body 8.
Owing to constitute the rod 316 of sensing rod for temperature, can be according to the displacement of the film 36a of power part 36, freely be driven across passage 34 advance and retreat, this just forms and is communicated with along the passage 32c of rod 316 and the gap between the low pressure refrigerant passage 34, for preventing to form such connection, the O shape ring and the stop component 41 that are sealed in excellent 316 peripheries need be set in large diameter hole 38, make between two passages, to have sealing O shape ring.
In addition, label 35 is valve chambers, and it is and the chamber that the end is arranged of the coaxial formation of throttle orifice 32a that passage 32b is communicated with the high-pressure side, relies on adjustment bolt 8b to seal, and is communicated with low-pressure side passage 32c by throttle orifice 32a.
Bottom at valve body 30, by support unit 8c the compression helical spring 8a of valve body 8 towards the closing direction pushing is arranged in the valve chamber 35, valve chamber 35 is by the adjustment bolt 8b closure that screws togather with valve body 30,8d keeps airtight by O shape ring, the upper end of compression helical spring 8a is fixed on the support unit 8c, and its lower end is bearing in to be adjusted on the bolt 8b.
Here, when the high-pressure refrigerant of going to expansion valve when situation that pressure changes appears in the upstream side of kind of refrigeration cycle, this pressure changes passes to expansion valve by high-pressure refrigerant as medium.
Yet, in above-mentioned existing expansion valve, when changing pressure with the upstream side cold-producing medium according to pressure and transmit, valve body can occur and move jiggly problem, in this case, the flow-control of expansion valve can not correctly be carried out, and perhaps, can occur because the valve body vibration produces the such problem of noise.
Reply means to this have at present: between spherical supporting member that supports ball valve and pushing spring antirattle spring is installed, antirattle spring is by constituting with the integrally formed a plurality of wing plates of plectane, the wing plate is against on the valve body, and (example is with reference to patent documentation 2: real public clear 48-96853 communique) can to allow the stable action of spherical valve body.
With the expansion valve of the above-mentioned anti-plate of fluttering its wings up and down, variation at high-pressure refrigerant pressure, can reach the purpose that makes its stable action, but because the anti-plate of fluttering its wings up and down generally is to be installed in the spherical supporting by lock nut, components number is increased, assembling is complicated, because the complicated operation of its structure and assembling just needs higher expense.
In addition, installing under the situation of antirattle spring on the existing expansion valve shown in Figure 2, be difficult to make antirattle spring to be stably mounted.
That is to say that Fig. 3 A is the sectional drawing that the main position of expansion valve of antirattle spring has been installed, Fig. 3 B is the exploded view of Fig. 3 A, and the parts identical with Fig. 2 adopt identical label.In Fig. 3 A and 3B, antirattle spring 8f relies on support unit 8c is inserted the 8f of its plectane portion 1The hole 8f of central authorities 3In, and be sandwiched in and support unit 8c is integrally formed as the 8c ' of fastening portion of helical spring 8a and helical spring 8a upper end between, with the 8f of plectane portion 1The integrally formed a plurality of 8f of foot that are positioned at its periphery 2Contact with valve body.In such structure, the 8f of plectane portion 1Hole 8f 3The end and the bowing portion of support unit 8c and fastening portion 8c ' junction interfere mutually, antirattle spring is tilted easily.
That is to say that shown in Figure 4 as A ' the portion enlarged drawing of Fig. 3 A is positioned at the 8c ' of fastening portion of the helical spring 8a on the support unit 8c, the hole 8f of the arc sections RA of its root and antirattle spring 8f 3End face interfere mutually, make the 8f of foot 2Contact with the 8c ' of fastening portion near the bend R, make the 8f of foot of antirattle spring 8f 2Move laterally, this makes antirattle spring 8f be difficult to be stably mounted apart from φ to produce one, thereby makes the action instability of valve body.
Summary of the invention
For achieving the above object, expansion valve of the present invention possesses: the valve body with throttle orifice of the low-pressure channel connection that makes the high-pressure side passage that flows into high-pressure refrigerant and make the cold-producing medium outflow of passing through this high-pressure side passage; With the contact of above-mentioned throttle orifice or separate and regulate the valve body of the refrigerant amount that flows through above-mentioned throttle orifice; The support unit that has flange shape fastening portion when supporting this valve body; By above-mentioned fastening portion with the helical spring of above-mentioned support unit to the extruding of the pass of above-mentioned valve body valve direction; And, be clamped between above-mentioned fastening portion and the above-mentioned helical spring to prevent the antirattle spring of above-mentioned valve body vibration, it is characterized in that: maintaining part is arranged on the above-mentioned support unit, its by make above-mentioned antirattle spring from the sweep of the root portion of above-mentioned fastening portion from state under, above-mentioned antirattle spring is clamped between above-mentioned maintaining part and the above-mentioned helical spring and above-mentioned antirattle spring is remained prescribed form.
Other feature of the present invention is: above-mentioned antirattle spring has a plurality of foots that form porose board and be radial extension from the periphery of this board to a side direction of above-mentioned board; Above-mentioned support unit has the trunk portion in the hole that runs through above-mentioned board and is formed at above-mentioned fastening portion on the end periphery of this trunk portion; And be constructed as follows: run through in the hole of above-mentioned board by making above-mentioned trunk portion, above-mentioned antirattle spring is installed on the above-mentioned support unit, an above-mentioned helical spring end is entrenched in outward on the above-mentioned trunk portion, so that above-mentioned helical spring pushes the one side of above-mentioned board, make above-mentioned each foot's extruding touch above-mentioned valve body simultaneously, and then make the above-mentioned valve body of above-mentioned support unit elastic bearing; Above-mentioned maintaining part forms to the outstanding mode of above-mentioned board with the circumference of the face relative with above-mentioned board from above-mentioned fastening portion.
Learn that by above explanation expansion valve of the present invention owing to be provided with maintaining part on the support unit of valve body, has been installed antirattle spring between maintaining part and helical spring, antirattle spring can stably be installed.And in the installation place of antirattle spring, the structure of expansion valve does not produce significantly and changes, and therefore, uses simple structure that antirattle spring cheaply and easily is mounted.In addition, obtained expansion valve that valve body can steadily be moved.
Description of drawings
Fig. 1-the 1st, the key diagram of the embodiment of the invention.
Fig. 1-2 is the key diagram of the embodiment of the invention.
Fig. 1-the 3rd, the key diagram of the embodiment of the invention.
The schematic diagram of expansion valve in Fig. 2 prior art.
Fig. 3-the 1st, the schematic diagram of expansion valve in the prior art.
Fig. 3-the 2nd, the schematic diagram of expansion valve in the prior art.
Fig. 4 is the enlarged drawing of A ' portion among Fig. 3.
The specific embodiment
Below, by accompanying drawing embodiments of the invention are described.
Figure 1A is the skiagraph of the main embodiment in position of expansion valve of the present invention, it has omitted the adjusting bolt, what show is that antirattle spring is installed in the state diagram between support unit and the helical spring, corresponding with Fig. 3 A that shows the existing main position of expansion valve, other structure since with Fig. 2 in the existing expansion valve that shows the same, so be omitted.
Figure 1B is the B portion enlarged drawing of Figure 1A, and Fig. 1 C is the support unit of Figure 1A and 1B and the stereogram of valve body.In Figure 1A-1C, the part identical with Fig. 3 A be with same symbolic representation, and the support unit 8c ' of supporting valve body 8 is at the fixing 8c of fastening portion of helical spring 8a " the downside circumference forms protuberance P, at the 8c of fastening portion " root form along its recess Q on every side.That is to say, at the 8c of fastening portion " central part of downside, formed the bigger columnar portion 8c of diameter " 1, its connecting portion forms recess Q.And, at the 8c of fastening portion " above central part form the less columnar portion 8c ' of diameter 1, by its supporting valve body 8.Simultaneously with columnar portion 8c " 1Insert among the helical spring 8a, helical spring 8a is fixed.
Owing to adopt such structure, as shown in Fig. 1 D exploded perspective view, the part 8c that diameter is bigger " 1Insert the antirattle spring 8f plectane 8f of portion 1Hole 8f 3In, when at helical spring 8a and the 8c of fastening portion " between when antirattle spring 8f is installed, the 8f of plectane portion of antirattle spring 8f 1Be against the 8c of fastening portion " protuberance P on; because this protuberance P is being assembled as support; therefore just eliminated the R of bowing portion that becomes existing support unit 8c and fastening portion 8c ' junction, and, also can prevent owing to interfere the situation that makes antirattle spring 8f distortion mutually with above-mentioned root.

Claims (2)

1. an expansion valve possesses: the valve body with throttle orifice of the low-pressure channel connection that makes the high-pressure side passage that flows into high-pressure refrigerant and make the cold-producing medium outflow of passing through this high-pressure side passage; With the contact of above-mentioned throttle orifice or separate and regulate the valve body of the refrigerant amount that flows through above-mentioned throttle orifice; The support unit that has flange shape fastening portion when supporting this valve body; By above-mentioned fastening portion with the helical spring of above-mentioned support unit to the extruding of the pass of above-mentioned valve body valve direction; And, be clamped in the antirattle spring to prevent that above-mentioned valve body from vibrating between above-mentioned fastening portion and the above-mentioned helical spring, it is characterized in that:
Maintaining part is arranged on the above-mentioned support unit, its by make above-mentioned antirattle spring from the sweep of the root portion of above-mentioned fastening portion from state under, above-mentioned antirattle spring is clamped between above-mentioned maintaining part and the above-mentioned helical spring and above-mentioned antirattle spring is remained prescribed form.
2. expansion valve according to claim 1 is characterized in that:
Above-mentioned antirattle spring has a plurality of foots that form porose board and be radial extension from the periphery of this board to a side direction of above-mentioned board;
Above-mentioned support unit has the trunk portion in the hole that runs through above-mentioned board and is formed at above-mentioned fastening portion on the end periphery of this trunk portion;
And be constructed as follows: run through in the hole of above-mentioned board by making above-mentioned trunk portion, above-mentioned antirattle spring is installed on the above-mentioned support unit, an above-mentioned helical spring end is entrenched in outward on the above-mentioned trunk portion, so that above-mentioned helical spring pushes the one side of above-mentioned board, make above-mentioned each foot's extruding touch above-mentioned valve body simultaneously, and then make the above-mentioned valve body of above-mentioned support unit elastic bearing;
Above-mentioned maintaining part forms to the outstanding mode of above-mentioned board with the circumference of the face relative with above-mentioned board from above-mentioned fastening portion.
CNB2004100962949A 2003-11-27 2004-11-26 Expansion valve Active CN100394126C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003396544A JP4666904B2 (en) 2003-11-27 2003-11-27 Expansion valve
JP2003396544 2003-11-27

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CN1621766A CN1621766A (en) 2005-06-01
CN100394126C true CN100394126C (en) 2008-06-11

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4542852A (en) * 1984-03-05 1985-09-24 The Singer Company Vibration damping device for thermostatic expansion valves
JPH0861810A (en) * 1994-08-15 1996-03-08 Saginomiya Seisakusho Inc Refrigerant control valve
JPH08189361A (en) * 1995-01-12 1996-07-23 Nissan Diesel Motor Co Ltd Engine thermostat
US6029694A (en) * 1996-11-29 2000-02-29 Robert Bosch Gmbh Diaphragm pressure regulating valve assembly
US6224170B1 (en) * 1997-08-27 2001-05-01 Nisshinbo Industries Inc. Hydraulic control valve device
JP2002267039A (en) * 2001-03-07 2002-09-18 Saginomiya Seisakusho Inc Solenoid valve

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS489685Y1 (en) * 1969-12-18 1973-03-14
JPH07102912A (en) * 1993-10-08 1995-04-18 Fuji Oozx Inc Tappet in internal combustion engine
JPH0828223A (en) * 1994-07-14 1996-01-30 Fuji Oozx Inc Spring receiver for valve system in internal combustion engine
JP3890810B2 (en) * 1999-04-27 2007-03-07 株式会社デンソー Control valve
JP2001082835A (en) * 1999-09-13 2001-03-30 Denso Corp Pressure control valve
JP4253102B2 (en) * 2000-03-28 2009-04-08 フジオーゼックス株式会社 Spring retainer for internal combustion engine
JP4640887B2 (en) * 2000-12-28 2011-03-02 株式会社キッツエスシーティー Fluid control valve
JP3903869B2 (en) * 2001-07-26 2007-04-11 株式会社デンソー Exhaust heat exchanger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4542852A (en) * 1984-03-05 1985-09-24 The Singer Company Vibration damping device for thermostatic expansion valves
JPH0861810A (en) * 1994-08-15 1996-03-08 Saginomiya Seisakusho Inc Refrigerant control valve
JPH08189361A (en) * 1995-01-12 1996-07-23 Nissan Diesel Motor Co Ltd Engine thermostat
US6029694A (en) * 1996-11-29 2000-02-29 Robert Bosch Gmbh Diaphragm pressure regulating valve assembly
US6224170B1 (en) * 1997-08-27 2001-05-01 Nisshinbo Industries Inc. Hydraulic control valve device
JP2002267039A (en) * 2001-03-07 2002-09-18 Saginomiya Seisakusho Inc Solenoid valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107035912A (en) * 2011-09-22 2017-08-11 株式会社不二工机 Valve gear

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JP4666904B2 (en) 2011-04-06
CN1621766A (en) 2005-06-01
JP2005156046A (en) 2005-06-16

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