WO2021241478A1 - 容量制御弁 - Google Patents
容量制御弁 Download PDFInfo
- Publication number
- WO2021241478A1 WO2021241478A1 PCT/JP2021/019529 JP2021019529W WO2021241478A1 WO 2021241478 A1 WO2021241478 A1 WO 2021241478A1 JP 2021019529 W JP2021019529 W JP 2021019529W WO 2021241478 A1 WO2021241478 A1 WO 2021241478A1
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- WIPO (PCT)
- Prior art keywords
- valve
- pressure
- opening
- sensitive
- closing member
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- 239000012530 fluid Substances 0.000 claims abstract description 40
- 230000001105 regulatory effect Effects 0.000 claims description 32
- 230000002093 peripheral effect Effects 0.000 description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 238000004378 air conditioning Methods 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 7
- 238000007599 discharging Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/048—Electromagnetically actuated valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/14—Control
- F04B27/16—Control of pumps with stationary cylinders
- F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/108—Valves characterised by the material
- F04B53/1082—Valves characterised by the material magnetic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/14—Control
- F04B27/16—Control of pumps with stationary cylinders
- F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
- F04B27/1804—Controlled by crankcase pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/24—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an electromagnetically-operated valve, e.g. for washing machines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
- F16K15/184—Combined check valves and actuated valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/061—Sliding valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/0624—Lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0668—Sliding valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/14—Control
- F04B27/16—Control of pumps with stationary cylinders
- F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
- F04B27/1804—Controlled by crankcase pressure
- F04B2027/1809—Controlled pressure
- F04B2027/1813—Crankcase pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/14—Control
- F04B27/16—Control of pumps with stationary cylinders
- F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
- F04B27/1804—Controlled by crankcase pressure
- F04B2027/1822—Valve-controlled fluid connection
- F04B2027/1827—Valve-controlled fluid connection between crankcase and discharge chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/14—Control
- F04B27/16—Control of pumps with stationary cylinders
- F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
- F04B27/1804—Controlled by crankcase pressure
- F04B2027/1822—Valve-controlled fluid connection
- F04B2027/1831—Valve-controlled fluid connection between crankcase and suction chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/14—Control
- F04B27/16—Control of pumps with stationary cylinders
- F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
- F04B27/1804—Controlled by crankcase pressure
- F04B2027/184—Valve controlling parameter
- F04B2027/1845—Crankcase pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/14—Control
- F04B27/16—Control of pumps with stationary cylinders
- F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
- F04B27/1804—Controlled by crankcase pressure
- F04B2027/184—Valve controlling parameter
- F04B2027/185—Discharge pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/14—Control
- F04B27/16—Control of pumps with stationary cylinders
- F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
- F04B27/1804—Controlled by crankcase pressure
- F04B2027/184—Valve controlling parameter
- F04B2027/1859—Suction pressure
Definitions
- the opening / closing member may have an annular portion that is relatively slidable with respect to the pressure sensitive valve member. According to this, since the annular portion is continuous without interruption in the circumferential direction, the through hole of the pressure sensitive valve member can be reliably closed by the annular portion.
- the elastic body may press the opening / closing member toward the flange portion formed on the pressure-sensitive body side of the through hole of the pressure-sensitive valve member. According to this, it is possible to secure the closed state of the through hole of the pressure sensitive valve member by the opening / closing member while positioning the closed position of the opening / closing member.
- the sub-valve 54 is composed of a main sub-valve body 51 and an open end surface of the fixed iron core 82, that is, a sub-valve seat 82a formed on the end surface on the left side of the fixed iron core 82 in the axial direction, and is a shaft of the main sub-valve body 51.
- the sub-valve 54 opens and closes when the step portion 51b on the right side in the direction is brought into contact with and separated from the sub-valve seat 82a.
- the capacity control valve V1 has a valve housing 10 made of a metal material or a resin material, and a main / sub valve body 51 arranged so as to reciprocate in the valve housing 10 in the axial direction.
- the valve housing 10 has a bottomed substantially cylindrical shape by press-fitting the partition adjusting member 11 into the left end portion in the axial direction in a substantially sealed shape.
- the partition adjusting member 11 can adjust the urging force of the pressure sensitive body 60 by adjusting the installation position of the valve housing 10 in the axial direction.
- the pressure-sensitive body 60 is arranged in the pressure-sensitive chamber 40, and the end face 70a on the right side in the axial direction of the adapter 70 is moved by the urging force for moving the adapter 70 to the right in the axial direction by the coil spring 62 and the bellows core 61. It is designed to be seated on the pressure-sensitive valve seat 52a of the pressure-sensitive valve member 52. Further, the adapter 70 is adapted to apply a force to the left in the axial direction according to the suction pressure Ps in the intermediate communication passage 55.
- the inner peripheral surface of the base 90a of the opening / closing member 90 is slidable with the outer peripheral surface of the base 52b of the pressure sensitive valve member 52. Specifically, a minute gap is formed between the inner peripheral surface of the base 90a of the opening / closing member 90 and the outer peripheral surface of the base 52b of the pressure sensitive valve member 52 by slightly separating them in the radial direction. Is smoothly relative to the pressure sensitive valve member 52 in the axial direction.
- the end surface 90c of the base portion 90a of the opening / closing member 90 is pressed toward the side surface 52e of the flange portion 52c of the pressure sensitive valve member 52 by the urging force of the second coil spring 92.
- the spring load of the second coil spring 92 acts on the first coil spring 91 via the protruding portion 90b of the opening / closing member 90, but as described above, the set load of the first coil spring 91 is the second. Since it is larger than the maximum spring load of the two coil springs 92, the first coil spring 91 does not contract and the state of the set length (mounting length) is maintained.
- the through hole 52d of the pressure-sensitive valve member 52 is formed on the right side in the axial direction with respect to the side surface 52e on the right side in the axial direction of the flange portion 52c, and the end surface 90c of the base 90a of the opening / closing member 90 is the flange portion of the pressure-sensitive valve member 52.
- the opening / closing member 90 is radially superimposed on the through hole 52d and the through hole 52d is closed from the state of being pressed against the side surface 52e of the 52c until the opening / closing member 90 is radially moved to the axial position of the opening end on the left side in the axial direction of the through hole 52d. It is designed to maintain the state of being used.
- the normal control time will be described.
- the flow rate of the fluid from the Pd port 12 to the Pc port 14 is controlled by adjusting the opening degree and the opening time of the main valve 50 by the duty control of the capacitance control valve V1.
- the opening / closing member 90 moves with respect to the valve housing 10 because the first coil spring 91 does not expand / contract and only the second coil spring 92 expands / contracts with respect to the axial reciprocating movement of the main / sub valve body 51. Is regulated.
- the stroke of the main / sub valve body 51 for adjusting the opening degree of the main valve 50 by the duty control of the capacity control valve V2 is from the time when the main valve 50 is fully opened (see FIG. 5).
- the opening / closing member 290 superimposes on the through hole 52d in the radial direction and penetrates. The state in which the hole 52d is closed is maintained (see FIG. 6).
- the opening / closing member 490 has a cylindrical base portion 490a as an annular portion that is externally fitted to the base portion 52b of the pressure sensitive valve member 52.
- a groove 490b extending in the circumferential direction is formed on the outer peripheral surface of the base portion 490a.
- a substantially C-shaped fixing member 493 as a regulating means is inserted and fixed in the groove 490b.
- the fixing member 493 is provided with a plurality of through holes 493a penetrating in the axial direction in the circumferential direction. Further, the through holes 493a may not be evenly arranged.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Control Of Fluid Pressure (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
吐出圧力の吐出流体が通過する吐出ポート、吸入圧力の吸入流体が通過する吸入ポートおよび制御圧力の制御流体が通過する制御ポートが形成されたバルブハウジングと、
ソレノイドにより駆動される弁体、および前記吐出ポートと前記制御ポートとの間に設けられ前記弁体が接触可能な主弁座により構成される主弁と、
感圧室に配置される感圧体と、
前記弁体から前記感圧室に延び前記感圧体と共に感圧弁を構成する感圧弁部材とを備え、
前記弁体と前記感圧弁部材とに中間連通路が形成されており、前記感圧弁の開閉により前記制御ポートと前記吸入ポートとを前記中間連通路により連通させることが可能な容量制御弁であって、
前記感圧弁部材には、前記中間連通路に連通する貫通孔が形成されているとともに、規制手段により前記バルブハウジングに対して移動が規制され前記感圧弁部材に対して相対的にスライドし前記貫通孔を開閉する開閉部材が設けられている。
これによれば、通電状態で主弁を制御する際において規制手段によりバルブハウジングに対して移動が規制される開閉部材を感圧弁部材に対して相対的に閉方向にスライドさせて感圧弁部材の貫通孔の少なくとも一部を閉塞することで、制御ポートから吸入ポートへの流体の流れ込みを防ぐまたは少なくすることができる。一方、起動時および最大通電状態で主弁が閉じた際において開閉部材を感圧弁部材に対して相対的に開方向にスライドさせて感圧弁部材の貫通孔を通常制御時よりも大きく開放することで、制御ポートと吸入ポートを連通させることにより、制御圧力を素早く下げることができる。このようにして、容量可変型圧縮機の起動時の液冷媒の排出および運転効率を高めることができる。
これによれば、環状部は周方向に途切れることなく連続していることから、環状部により感圧弁部材の貫通孔を確実に閉塞することができる。
これによれば、弾性体の弾性変形によりバルブハウジングに対する開閉部材の移動を所定範囲内に規制することができるため、開閉部材の破損を防止することができる。
これによれば、一対のバネにおけるバネ定数の違いにより開閉部材による感圧弁部材の貫通孔の開閉のタイミングを調整することができる。
これによれば、開閉部材の閉位置を位置決めしつつ、開閉部材により感圧弁部材の貫通孔の閉塞状態を確保することができる。
これによれば、開閉部材に対するストッパの当接位置を変えることで、弁体および感圧弁部材のストローク中における開閉部材による感圧弁部材の貫通孔の開放開始位置や開放量を変更することができ、これらの設定をしやすい。
これによれば、規制手段にバネ等が不要であり、構造を簡素化することができる。
これによれば、開閉部材を感圧弁部材に対して相対的にスライドさせることにより、貫通孔を全開させることができるため、広い流路断面積を確保できる。
2 吐出室
3 吸入室
4 制御室
10 バルブハウジング
10a 主弁座
10c 環状凸部
10d 環状受け部
11 仕切調整部材
12 Pdポート(吐出ポート)
13 Psポート(吸入ポート)
14 Pcポート(制御ポート)
20 主弁室
30 副弁室
40 感圧室
50 主弁
51 主副弁体(弁体)
51c 貫通孔
52 感圧弁部材
52a 感圧弁座
52b 基部
52c フランジ部
52d 貫通孔
52e 側面
53 感圧弁
54 副弁
55 中間連通路
60 感圧体
70 アダプタ
70a 軸方向右側の端面
80 ソレノイド
90 開閉部材
90a 基部(環状部)
90b 突出部
90c 端面
90d 端面
91 第1コイルスプリング(規制手段,弾性体,一対のバネ)
92 第2コイルスプリング(規制手段,弾性体,一対のバネ)
290 開閉部材
291 第1コイルスプリング(規制手段,弾性体,一対のバネ)
292 第2コイルスプリング(規制手段,弾性体,一対のバネ)
390 開閉部材
390a 基部(環状部)
390b 突出部
392 コイルスプリング(規制手段,弾性体)
393 ストッパ(規制手段)
490 開閉部材
490a 基部(環状部)
490b 溝
493 固定部材(規制手段)
493a 貫通孔
M 容量可変型圧縮機
V1~V4 容量制御弁
Claims (8)
- 吐出圧力の吐出流体が通過する吐出ポート、吸入圧力の吸入流体が通過する吸入ポートおよび制御圧力の制御流体が通過する制御ポートが形成されたバルブハウジングと、
ソレノイドにより駆動される弁体、および前記吐出ポートと前記制御ポートとの間に設けられ前記弁体が接触可能な主弁座により構成される主弁と、
感圧室に配置される感圧体と、
前記弁体から前記感圧室に延び前記感圧体と共に感圧弁を構成する感圧弁部材とを備え、
前記弁体と前記感圧弁部材とに中間連通路が形成されており、前記感圧弁の開閉により前記制御ポートと前記吸入ポートとを前記中間連通路により連通させることが可能な容量制御弁であって、
前記感圧弁部材には、前記中間連通路に連通する貫通孔が形成されているとともに、規制手段により前記バルブハウジングに対して移動が規制され前記感圧弁部材に対して相対的にスライドし前記貫通孔を開閉する開閉部材が設けられている容量制御弁。 - 前記開閉部材は、前記感圧弁部材に対して相対的にスライド可能な環状部を有している請求項1に記載の容量制御弁。
- 前記規制手段は、前記開閉部材の移動を規制する弾性体を有している請求項1または2に記載の容量制御弁。
- 前記弾性体は、前記開閉部材を互いに開方向と閉方向に押圧する一対のバネである請求項3に記載の容量制御弁。
- 前記弾性体は、前記開閉部材を前記感圧弁部材の前記貫通孔よりも前記感圧体側に形成されるフランジ部に向けて押し付けている請求項3または4に記載の容量制御弁。
- 前記規制手段は、前記開閉部材と当接するストッパを有している請求項3に記載の容量制御弁。
- 前記規制手段は、前記バルブハウジングに対する前記開閉部材の固定により前記開閉部材の移動を規制している請求項1または2に記載の容量制御弁。
- 前記貫通孔の軸方向寸法は、前記弁体の最大ストローク量以下である請求項1ないし7のいずれかに記載の容量制御弁。
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CN202180038296.4A CN115667719A (zh) | 2020-05-25 | 2021-05-24 | 容量控制阀 |
US17/926,531 US12110882B2 (en) | 2020-05-25 | 2021-05-24 | Capacity control valve |
JP2022527016A JP7515997B2 (ja) | 2020-05-25 | 2021-05-24 | 容量制御弁 |
KR1020227041703A KR20230003565A (ko) | 2020-05-25 | 2021-05-24 | 용량 제어 밸브 |
EP21812004.6A EP4160015A4 (en) | 2020-05-25 | 2021-05-24 | CAPACITY CONTROL VALVE |
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JP2020-090665 | 2020-05-25 | ||
JP2020090665 | 2020-05-25 |
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US (1) | US12110882B2 (ja) |
EP (1) | EP4160015A4 (ja) |
JP (1) | JP7515997B2 (ja) |
KR (1) | KR20230003565A (ja) |
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WO (1) | WO2021241478A1 (ja) |
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US20230193889A1 (en) | 2023-06-22 |
JP7515997B2 (ja) | 2024-07-16 |
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CN115667719A (zh) | 2023-01-31 |
KR20230003565A (ko) | 2023-01-06 |
US12110882B2 (en) | 2024-10-08 |
EP4160015A4 (en) | 2024-06-26 |
JPWO2021241478A1 (ja) | 2021-12-02 |
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