WO2013157194A1 - 流路切替装置 - Google Patents
流路切替装置 Download PDFInfo
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- WO2013157194A1 WO2013157194A1 PCT/JP2013/001711 JP2013001711W WO2013157194A1 WO 2013157194 A1 WO2013157194 A1 WO 2013157194A1 JP 2013001711 W JP2013001711 W JP 2013001711W WO 2013157194 A1 WO2013157194 A1 WO 2013157194A1
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- WIPO (PCT)
- Prior art keywords
- rotary valve
- valve
- fluid
- rotary
- flow path
- Prior art date
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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
- F16K27/003—Housing formed from a plurality of the same valve elements
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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
- 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
- F16K11/14—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 one actuating member, e.g. a handle
- F16K11/16—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 one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
- F16K11/163—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 one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns
- F16K11/165—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 one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns with the rotating spindles parallel to the closure members
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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
- 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
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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
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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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
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating 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
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
- F16K31/523—Mechanical actuating means with crank, eccentric, or cam comprising a sliding valve
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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
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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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
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87249—Multiple inlet with multiple outlet
Definitions
- each valve body in each rotary valve unit has a plurality of positions with respect to the first fluid port and the second fluid port.
- the present invention relates to a flow path switching device that drives to different positions between rotary valve portions.
- a multidirectional switching valve described in Patent Document 1 has a simple structure for switching the supply of air to a plurality of systems, and includes a flow path section, a flow path switching means, a driving means, and a control means for obtaining a multidirectional switching valve that can be reduced in size. Yes.
- the flow path portion is composed of a cylindrical cylinder provided with a suction portion and a plurality of discharge portions, and the flow path switching means is a movable valve disposed in the cylinder and a piston rod connected to the movable valve Consists of.
- the end of the piston rod is connected to driving means, and the piston rod is moved linearly by the driving means to open and close the fluid passage.
- the piston rod which should be called a common shaft
- a single driving means so that two fluids (for example, hot water and cold water) are used.
- a flow path switching apparatus in which a plurality of flow paths at two or more locations corresponding selectively is present.
- this flow path switching device when the number of the plurality of flow paths is increased, the configuration becomes linearly long, and the mounting property on a vehicle or the like deteriorates. Further, even if the common shaft is linearly driven in the axial direction to switch the flow channel, the number of flow channel switching is small.
- the purpose is to provide a plurality of rotary valve parts having a first fluid port having at least one fluid pipe and a second fluid port, and a flow path switching capable of switching a large number of flow paths with a single drive source.
- the purpose is to obtain a device.
- the flow path switching device has a plurality of rotary valve units arranged side by side.
- Each of the rotary valve portions includes a casing forming a space therein, opposing side walls, a peripheral wall formed between the side walls, at least one first fluid port provided in the peripheral wall, the peripheral wall or the At least one second fluid port provided in a part of the side wall; a rotating shaft extending in a direction connecting the opposing side walls inside the casing; and a valve body rotatably supported by the rotating shaft; .
- a flow path in which the first fluid port and the second fluid port selectively communicate with each other is formed by the rotation of the valve body.
- the flow path switching device includes a drive mechanism that drives each of the valve bodies by a predetermined rotation angle.
- the drive mechanism includes a single drive source and a power transmission member that transmits the rotational power of the single drive source to the rotary valve units.
- the motive power of the drive source is transmitted to the respective rotation shafts of the plurality of rotary valve portions, and the respective valve bodies are moved to positions where the positions of the respective valve bodies relative to the first fluid port and the second fluid port are different from each other. To drive.
- a plurality of rotary valve portions having the first fluid port and the second fluid port are provided, and a plurality of flow paths can be switched by a single drive source. Moreover, since it comprises a plurality of rotary valve portions, the overall length in the direction of the rotation axis can be shortened, and a relatively large number of flow paths can be switched.
- the drawing It is a partial longitudinal cross section which follows the arrow II line
- FIG. 18 is a schematic side view of the rotary valve portion and the crank mechanism as viewed from the direction of arrow XIX in FIG. 17. It is an internal block diagram of the rotary valve part in 6th Embodiment.
- FIG. 1 It is an internal block diagram which shows the flow of the fluid in each rotary valve part in the eight flow path patterns in the said 6th Embodiment. It is a typical perspective view of the flow-path switching apparatus in 7th Embodiment. It is a top view of the valve body in each rotary valve part in the said 7th Embodiment. It is a schematic plan view of the flow path switching device in the seventh embodiment. It is an internal block diagram which shows the flow of the fluid in each rotary valve part in the eight flow path patterns in the said 7th Embodiment. It is a partial cross section figure which follows the arrow XXVI-XXVI line of FIG. 28 which shows 8th Embodiment. FIG.
- FIG. 27 is a perspective view of the valve body of the first rotary valve unit shown in FIG. 26.
- FIG. 27 is a perspective view of a valve body of the second rotary valve unit shown in FIG. 26.
- It is a typical block diagram of the flow-path switching apparatus seen from the arrow XXVIII direction of FIG.
- the rotary valve unit 1 in FIG. 1 is composed of a rotary three-way valve.
- the rotary valve portion 1 includes a left pipe (also referred to as one side pipe) 4L, a right side pipe (also referred to as the other side pipe) 4R, and a second fluid port 5 that constitute the first fluid port.
- the second fluid port 5 in this embodiment constitutes a discharge pipe.
- rotary valve portions 1 are juxtaposed as shown in FIG.
- the juxtaposition direction is the left-right direction of FIG.
- the rotary valve units 1, 2, and 3 juxtaposed are respectively arranged in the casing 6, the space 7 in the casing 6, the first fluid ports 4L and 4R, the second fluid port 5, and the valve body 8. And a rotating shaft 9.
- the space 7 includes side walls 11 and 12 that are formed inside the casing 6 and face each other, and a peripheral wall 13 that is formed between the side walls 11 and 12.
- the peripheral wall 13 includes first fluid ports 4L and 4R.
- the first fluid ports 4L and 4R are composed of a left pipe 4L and a right pipe 4R.
- the side walls 11 and 12 have a second fluid port 5.
- the casing 6 includes a rotary shaft 9 extending in a direction connecting the opposite side walls 11 and 12, and a valve body 8 rotatably supported by the rotary shaft 9.
- the valve body 8 is connected to the rotary shaft 9 and extends in a direction perpendicular to the rotary shaft 9, and a circle extending in a direction perpendicular to the fan-shaped flat portion 8 a.
- an arcuate plane portion 8b is connected to the rotary shaft 9 and extends in a direction perpendicular to the rotary shaft 9, and a circle extending in a direction perpendicular to the fan-shaped flat portion 8 a.
- an arcuate plane portion 8b has a thick portion 8b1 having a large thickness and a thin portion 8b2 having a small thickness.
- the thick part 8b1 is coupled to the fan-shaped flat part 8a, and the thin part 8b2 is coupled to the thick part 8b1.
- the suction pipe 4L forming the left first pipe 4L and the suction pipe 4R forming the right second pipe 4R are arranged in a straight line with each other.
- the discharge pipe 5 constituting the second fluid port 5 protrudes in a direction perpendicular to the straight line.
- the space 7 has a cylindrical shape, and the left side pipe 4L and the right side pipe 4R, which are arranged at different positions on the peripheral wall 13, communicate with the space 7. Further, the second fluid port 5 is provided on the side wall 12 of the side walls 11 and 12.
- the valve body 8 has the arcuate flat surface portion 8 b along the inner peripheral surface of the peripheral wall 13.
- valve body 8 When the valve body 8 is in a position to bridge the left pipe 4L or the right pipe 4R and the second fluid port 5, the valve body 8 blocks the flow of fluid through the left pipe 4L or the right pipe 4R. Even when the fluid is present, the fluid can flow through the second fluid port 5. For this reason, in this embodiment, the peripheral wall 13 has the second fluid port 5.
- the arc-shaped planar portions 8b1 and 8b2 have a thick portion 8b1 and a thin portion 8b2.
- the thin part 8b2 prevents the opening 5a of the second fluid port 5 of the peripheral wall 12 from being blocked regardless of the position of the valve body 8.
- a part of the thick part 8b1 may block a part of the opening 5a of the second fluid port 5.
- Rotation of the valve body 8 forms a flow path in which the left pipe 4L, the right pipe 4R, and the second fluid port 5 forming the first fluid ports 4L and 4R are selectively communicated. Further, as shown in FIG. 4, a drive mechanism 21 that repeatedly drives and stops each valve body 8 by a predetermined rotation angle is provided.
- the drive mechanism 21 includes a motor that forms a single drive source 22, and a power transmission member that transmits the rotational power of the single drive source 22 to the rotary valve units 1, 2, and 3.
- the power transmission member is configured by combining a plurality of gears 23, 24, 25, 31, 32, 33 and the like.
- the power of the drive source 22 is transmitted to each rotary shaft 9 (FIG. 1) of the plurality of rotary valve portions 1, 2, and 3.
- the positions of the valve body 8 with respect to the left pipe 4L, the right pipe 4R and the second fluid port 5 forming the first fluid ports 4L and 4R are different from each other between the rotary valve portions 1, 2 and 3.
- Each valve body 8 is driven.
- the material of the valve body 8 is a resin material or the like. Further, the valve body 8 has a stepped portion 8d shown in FIG. 3 so as not to block the opening hole 5a (FIG. 2) connected to the discharge pipe 5 constituting the second fluid port 5. It is molded into a stepped shape.
- the valve body surface seal portion 14 (FIG. 2) is a portion necessary for shutting down the cooling water on the suction port side to stop the flow without leakage, and is present in a clearance portion between the casing 6 and the valve body 8.
- the rotating valve body 8 and the valve body surface seal portion 14 formed of an arc-shaped belt are fixed by using any means such as adhesion, pressure bonding, and fitting.
- the casing 6 that houses the valve body 8 is made of a synthetic resin material such as nylon, PPA, or PPS. Note that metal (aluminum, SUS material) is used when pressure resistance is required.
- the material of the valve body surface seal portion 14 made of an arcuate belt is preferably a rubber material that is durable to ethylene glycol, a rust inhibitor, a performance improver, and the like that are blended in the cooling water. Therefore, generally, EPDM and fluororubber are used.
- the valve body 8 has a structure that protrudes outward from the casing 6 as shown in FIG. 1 for coupling with a gear train constituting the drive mechanism 21. Therefore, a seal structure for preventing the cooling water inside the casing 6 from leaking outside is essential, and generally a cylindrical seal 23 (FIG. 1) using an O-ring is used.
- the rotary valves 1, 2, and 3 have a first rotary valve portion 1, a second rotary valve portion 2, and a third rotary valve portion 3. And it has the 1st rotary body 31 which drives the 1st rotary valve part 1, the 2nd rotary body 32 which drives the 2nd rotary valve part 2, and the 3rd rotary body 33 which drives the 3rd rotary valve part 3.
- These first to third rotating bodies 31 to 33 are formed of gears as described above.
- the second rotating body 32 and the third rotating body 33 are driven by the axis (common axis) 34 of the first rotating body 31.
- the respective valve bodies 8 of the first rotary valve section 1, the second rotary valve section 2, and the third rotary valve section 3 connected to the first to third rotating bodies 31 to 33 via input pinions 31a, 32a, 33a. Each stop by rotating by a predetermined rotation angle determined in advance.
- the predetermined rotation angle is set so that the rotation angles of the valve bodies 8 of at least one set of rotary valve portions are different from each other.
- the rotation angles of the valve bodies 8 of the pair of rotary valve portions 1 and 2 are set to be different from each other.
- the rotational angles of the valve bodies 8 of all the rotary valve portions 1, 2, and 3 are determined so as to be different from each other.
- the left pipe 4L and the right pipe 4R which are the first fluid ports of the plurality of rotary valve sections 1, 2, and 3, are connected to the common fluid pipes 41 and 42, respectively.
- the common fluid pipes 41 and 42 include a first common fluid pipe 41 and a second common fluid pipe 42.
- the plurality of rotary valve portions 1, 2, and 3 are mechanically connected to the first common fluid pipe 41 and the second common fluid pipe 42.
- the drive source 22 rotates the common shaft 34 extending in parallel with the juxtaposition direction of the rotary valve portions 1, 2, and 3. Then, the rotary valve portions 1, 2, and 3 are driven via the common shaft 34. As shown in FIG. 4, the drive source 22 is disposed between the second rotator 32 and the third rotator 33, but may be disposed between other rotators.
- the rotational angles of the respective rotary valves 1, 2, 3,... (N) of the valve bodies 8 are all different in this embodiment as described above.
- the rotation angle of the first rotary valve unit 1 is 1, the rotation angle ratio of (N) rotary valve units has a relationship of (N-1) power of 1: 2: 4: ... 2 It is
- a rotation angle detection device (potentiometer) 43 is provided on the input pinion 31a connected to the rotation shaft 9 of the first rotary valve unit 1 driven by a gear constituting the first rotating body 31.
- the rotation angle detection device 43 detects the rotation position of the rotation shaft 9 of the first rotary valve unit 1.
- the motor 22 constituting the drive source 22 is sufficient to rotate only in the forward direction.
- a forward / reverse direction rotation (reversible rotation) function is added to improve the rotary valve switching speed. .
- the motor 22 is an inexpensive DC motor.
- the reduction gear 24 that meshes with the output pinion 23 coupled to the output shaft of the motor 22 is used to obtain a larger valve body rotational driving force (torque) in consideration of insufficient torque of the motor 22.
- the center gear 31 constituting the first rotating body 31 is a gear fixed to a common shaft (center shaft) 34 and meshed with an input pinion 31a serving as a valve body gear.
- the rotation angle of the first rotary valve unit 1 is 1, the rotation angle ratio of the (N) rotary valve units is 1 to 2 to 4 to... 2 (N ⁇ 1) as described above. Has a relationship of power.
- the ratio of the number of teeth of the first rotary body 31 and the input pinion 31a is set so that the rotation angle ratio is 1 to 2 in the first rotary valve unit 1, the second rotary valve unit 2, and the third rotary valve unit 3, respectively. It is designed to be 2 (N ⁇ 1) powers.
- the first to third rotating bodies 31 to 33 and the input pinions 31a, 32a, 33a constituting the valve body gear can be made of synthetic resin or the like.
- the input pinions 31a, 32a, 33a forming the valve body gears and the internal valve body 8 are connected and rotate integrally. Integration by this connection can be performed by any one of adhesion, welding, press-fitting, and integral molding.
- the common shaft 34 is a component that coaxially connects the plurality of first to third rotating bodies 31 to 33.
- the material of the common shaft 34 is SUS material or the like.
- maintain this common shaft 34 are attached to the outer casing 51 (FIG. 6).
- the rotation angle detection device 43 in FIG. 4 has a potentiometer that detects the rotation angle by electric resistance, and regularly arranges magnetic materials and reads the magnetic material arrangement pattern with a Hall element.
- the rotation angle that is, the rotation angle of the valve body 8 is detected.
- the detectable angle of the rotation angle detection device 43 needs to be in a range of at least 360 degrees.
- the valve body 8 and the rotation angle detection device 43 in the first rotary valve unit 1 need to move integrally.
- the first fluid ports 4L and 4R are located at different positions inside the casing.
- the left pipe 4L and the right pipe 4R communicate with each other. As shown in FIG.
- the common fluid pipes 41 and 42 include a first common fluid pipe 41 and a second common fluid pipe 42 through which different fluids (hot water and cold water) 41 a and 42 a respectively flow.
- a plurality of rotary valve portions 1, 2, 3 sandwiched between the first common fluid pipe 41 and the second common fluid pipe 42 are connected by the first common fluid pipe 41 and the second common fluid pipe 42. .
- a rotary valve composed of three rotary valve portions 1, 2 and 3 and a drive mechanism 21 are built in a tank-shaped outer casing 51.
- the inside of the outer casing 51 communicates with the outside air through the breathing hole 52.
- the outer casing 51 is partially penetrated by common fluid pipes 41 and 42.
- the breathing hole 52 keeps the pressure inside the outer casing 51 properly.
- the breathing hole 52 may be covered with a cap (filter) having a fluororesin porous membrane.
- the outer casing 51 stores the gears and motors of the drive mechanism 21.
- the outer casing 51 may be integrally formed with any of the left pipe 4L, the right pipe 4R, the discharge pipe 5, the casing 6 of the rotary valve section, the first common fluid pipe 41, and the second common fluid pipe 42.
- the material of the outer casing 51 is the same as that of the casing 6.
- FIG. 7 illustrates an internal configuration in which the left pipe 4L of the first fluid port is closed in the valve body 8 of any of the rotary valve portions 1, 2, and 3 in the first embodiment.
- the rotation angle ⁇ represents the rotation angle from the initial position.
- the valve body closing angle ⁇ c which is the spread angle of the valve body, is 180 degrees in FIG.
- the first pipe (left pipe 4L) and the second pipe (right pipe 4R) constituting the first fluid port constitute the suction portion. Yes.
- the second fluid port 5 constitutes a discharge part.
- the ratio of the rotation angle between the plurality of valve bodies 8 is 1 to 2 (n-1) th power (n is an arbitrary natural number not including 0), as shown in FIGS.
- n is an arbitrary natural number not including 0
- each valve body 8 starts from the state shown in FIG. 8 and has double rotation angles such as 60 degrees, 120 degrees, and 240 degrees in FIG. 9, 120 degrees, 240 degrees, and 480 degrees in FIG. Rotate to stop.
- FIG. 8 shows an internal configuration of the plurality of rotary valve portions 1, 2, and 3 showing an initial position operation pattern when the rotation angles in the first embodiment are all 0 degrees.
- the rotation angle is 0 degree
- the rotation angle is 0 degree
- the rotation angle is 0 degree
- the rotation angle is 0 degree in order
- the discharged fluid is mixed (see FIG. 8), mixed, mixed.
- FIG. 9 shows an internal configuration of the plurality of rotary valve portions 1, 2, and 3 showing an operation pattern when the rotation angle is 60 degrees, 120 degrees, and 240 degrees in the first embodiment.
- the rotation angle is 60 degrees
- the rotation angle is 120 degrees
- the rotation angle is 240 degrees
- the discharged fluid is right, right , Left.
- FIG. 10 shows the inside of a plurality of rotary valve portions 1, 2, and 3 showing an operation pattern when the rotation angle is 120 degrees, 240 degrees, and 480 degrees in the first embodiment.
- fluids discharged by the three rotary valve portions 1, 2, and 3 are right, left, and right. That is, in FIG. 10, the first rotary valve unit 1 discharges the inflow fluid from the right side pipe 4R, the second rotary valve unit 2 discharges the inflow fluid from the left side pipe 4L, and the third rotary valve unit 3 moves to the right side. The inflow fluid from the pipe 4R is discharged.
- FIG. 11 shows the operation of the rotary valve portions 1, 2, and 3 in the eight flow path patterns of the first embodiment.
- the first rotary valve unit 1 to the third rotary valve unit 3 are omitted from the description like the valves 1 to 3.
- L in the column of the flow path pattern indicates a state where the inflowing fluid from the left pipe 4L is discharged.
- R indicates a state in which the inflow fluid from the right pipe 4R is discharged.
- “Mix” is described by omitting the mixing mode in which the fluid flows into the casing 6 from both the left pipe 4L and the right pipe 4R and exits from the discharge pipe as the second fluid port 5.
- the rotating valve body 8 includes a suction pipe on the left pipe 4L and a suction pipe on the right pipe 4R. There is a function of guiding only one of the cooling waters to flow into the casing 6 from the suction pipe to the discharge pipe forming the second fluid port 5.
- the valve body 8 (FIG. 7) of the first embodiment has an arc shape.
- the port hole diameter angle ⁇ (suction port opening angle) is an angle that spreads around the rotation shaft 9 between both end surfaces on the casing inner side corresponding to the hole diameters of the first fluid ports 4L and 4R.
- An angle extending around the rotation axis 9 between the left pipe 4L and the right pipe 4R is defined as a port separation angle ⁇ (suction pipe arrangement angle).
- An angle of 180 degrees or less spreading around the rotation axis 9 between both ends of the valve body 8 is defined as a valve body closing angle ⁇ c.
- the rotary valve portions 1, 2, and 3 of the first embodiment all have a port hole diameter angle ⁇ of 45 ° and a port separation angle ⁇ of 180 °.
- the valve body closing angle ⁇ c is 180 degrees, and the valve body opening angle ⁇ o is 180 degrees.
- the flow path switching in 2 N power patterns is performed within the number N of juxtaposed rotary valve portions 1, 2 and 3 limited by the value of the port hole diameter angle ⁇ . Is possible. In the case of other settings, the addition of a shut function described later and the flow rate adjustment described later are possible, but the number of patterns may be smaller than 2 N powers.
- the rotary valve portions 1, 2, and 3 in the first embodiment schematically have the internal shape of FIG. 7, and the port hole diameter angle ⁇ is 45 degrees, the port separation angle ⁇ is 180 degrees, and the valve body closing angle ⁇ c is 180.
- the valve body open angle ⁇ o is 180 degrees. Under these conditions, the number of the rotary valve portions 1, 2, and 3 for realizing the flow switching of 2 N patterns of channels is naturally limited.
- the rotation angle of the valve body is (0 degrees to ⁇ / 2 degrees), (180 ⁇ / 2) degrees to (180 + ⁇ / 2) degrees, (360 ⁇ / 2) degrees to 360.
- the mixed region operation mode in which fluids from the left and right suction pipes 4L and 4R mix and flow to the discharge pipe 5 is set.
- any one of the rotary valve sections 1, 2, and 3 has a mixing region that becomes a mixing region operation mode, any flow path distribution cannot be performed. Therefore, when it is going to implement
- the restriction (condition) when attempting to switch the flow path of 2 N power patterns with N valves satisfies the following formula 1 when the inlet opening angle is ⁇ degrees.
- the need for angular values of N and ⁇ is indicated.
- N is the number of the rotary valve parts 1, 2, and 3 juxtaposed
- ⁇ is the port hole diameter angle. Note that the above relational expression need not be satisfied if the flow path switching is less than 2 N patterns.
- the rotary valve sections 1, 2, and 3 are independently controlled, so that the flow path can be switched in 2 N power patterns.
- the flow path switching pattern any one of the rotary valve portions 1, 2, and 3 has two flow path patterns. There is a flow path pattern.
- N “two-input one-output” type three-way valve type rotary valve sections 1, 2, and 3 are connected, and the rotation of one drive source 22 is performed by a drive mechanism 21 including a gear mechanism. It transmits to each rotary valve part 1,2,3. This realizes channel switching in a maximum of 2 N power patterns.
- each of the rotary valve portions 1, 2, and 3 has a valve body 8 with a valve body closing angle ⁇ c of 180 ° inside, and the flow path pattern is switched by rotating the valve body 8. .
- the speed ratio (or the speed ratio) between the rotary bodies 31, 32, 33 and the input pinions 31 a, 32 a, 33 a
- the gear ratio is changed.
- the speed ratio U is obtained by dividing the number of teeth of the drive gear (31, 32, 33 in FIG. 4) by the number of teeth of the driven gear (31a, 32a, 33a in FIG. 4) or the angular speed of the driven gear. Expressed by dividing by the angular velocity of the drive gear.
- the second “right” and “left” two flow path patterns can be considered, and similarly, the second certain one flow pattern is considered.
- the valve rotation angle range when the pattern of the first rotary valve portion 1 is “right” is a range obtained by subtracting the port hole diameter angle (suction opening angle) ⁇ from 180 °. Limited to.
- Rotation may be performed so that the second valve pattern becomes “right” and “left” while the valve body rotation angle of the first rotary valve unit 1 is at the “right” operating angle. Then, the two rotary valve units 1 and 2 may be connected so that the rotation angle of the second rotary valve unit 2 is double the rotation angle of the first rotary valve unit 1.
- the second rotary valve unit 2 covers “right” and “left” operating angles.
- the rotation angle ratio that is the ratio of the rotation angle of the adjacent rotary valve portion A + 1 to the rotation angle of a certain rotary valve portion A is set to double. In this way, it is possible to cover the flow paths in 2 N power patterns while the first rotary valve section rotates 360 °.
- the rotational angle ratio of the valve body 8 of the first rotary valve portion 1, the second rotary valve portion 2,..., The Nth rotary valve portion N is set to 1: 2:. .
- a flow path switching device capable of realizing 2 N number of patterns of flow paths while the first rotary valve unit 1 rotates 360 ° is obtained.
- the operation and effect of the first embodiment will be described.
- the effects of the first embodiment are summarized as follows.
- the first fluid ports 4L, 4R of the plurality of rotary valve portions 1, 2, 3 are connected to common fluid pipes 41, 42.
- the plurality of rotary valve portions 1, 2, and 3 are mechanically connected to the common fluid pipes 41 and 42. According to this, since the plurality of rotary valve portions are respectively connected to the common fluid piping, the connection strength of the plurality of rotary valve portions can be increased by the common fluid piping.
- the plurality of valve bodies 8 connected to the drive mechanism 21 repeatedly rotate by a predetermined rotation angle set in advance and stop, so that at least one set of valve bodies 8 has a rotation angle different from each other. Rotate to stop. According to this, a plurality of patterns of flow paths can be switched by juxtaposing a plurality of rotary valve portions.
- valve bodies 8 are rotated by different rotation angles and stopped, and the ratio of the rotation angles between the valve bodies 8 is 1 to 2 n-1 (n is an arbitrary natural number not including 0). Therefore, it is possible to switch the flow path of the N-th power pattern by arranging N rotary valve portions in parallel. Thereby, for example, each valve body rotates and stops at double rotation angles such as 60 degrees, 120 degrees, and 240 degrees.
- the first fluid ports 4L and 4R are composed of a left side pipe 4L and a right side pipe 4R communicating with the inside of the casing 6 at different positions, and the common fluid pipes 41 and 42 are first common fluids that respectively flow different fluids. It consists of a pipe 41 and a second common fluid pipe 42. A plurality of rotary valve portions 1, 2, and 3 sandwiched between the first common fluid pipe 41 and the second common fluid pipe 42 are connected by the first common fluid pipe 41 and the second common fluid pipe 42. Yes. According to this, since the plurality of rotary valve portions are composed of three-way valves and are sandwiched and connected between the first common fluid pipe and the second common fluid pipe, the connection strength of the plurality of rotary valve portions is increased. It can be further enhanced.
- the drive source 22 rotates a common shaft 34 that extends parallel to the juxtaposition direction of the rotary valve portions 1, 2, and 3. And since each rotary valve part 1,2,3 is driven via the common shaft 34, it is set as the flow-path switching apparatus by which the several rotary valve part 1,2,3 is driven by the single drive source 22. be able to.
- the plurality of rotary valve parts 1, 2, 3 have a first rotary valve part 1, a second rotary valve part 2, and a third rotary valve part 3.
- the drive mechanism 21 includes a first rotating body 31 that drives the first rotary valve unit 1, a second rotating body 32 that drives the second rotary valve unit 2, and a third rotating body 33 that drives the third rotary valve unit 3.
- the second rotating body 32 and the third rotating body 33 are driven by the common shaft 34 that is the axis of the first rotating body 31.
- the first rotary valve part 1, the second rotary valve part 2, and the valve body 8 of the third rotary valve part 3 are respectively connected to the first rotary body 31, the second rotary body 32, and the third rotary body 33.
- the common shaft which becomes the rotating shaft of the first rotating body is driven by a single driving source, and the valve bodies of the three rotary valve portions are interlocked with the second rotating body and the third rotating body. Can be driven.
- the drive source 22 is disposed between any one of the first rotating body 31, the second rotating body 32, and the third rotating body 33. According to this, the drive source is disposed in any one of the gaps between the first to third rotating bodies, and the flow path switching device having a relatively short length in the juxtaposition direction of the rotary valve portions can be obtained. . (Second Embodiment) Next, a second embodiment will be described. In the following embodiments, the same components as those in the first embodiment described above are denoted by the same reference numerals, description thereof will be omitted, and different configurations and features will be described.
- the valve body 8 has an arc shape, and an angle extending around the rotation shaft 9 between both end surfaces on the casing 7 inside corresponding to the hole diameter of the first fluid port is defined as a port hole diameter angle ⁇ (inlet port). Opening angle).
- the port hole diameter angle ⁇ is set in the range of 20 degrees to 45 degrees. In this embodiment, ⁇ is 45 degrees.
- FIG. 12 is a schematic diagram and does not correspond to an actual angle.
- FIG. 13 shows the state of the shut mode.
- the shut mode is a mode in which the fluids of both the right side pipe 4R and the left side pipe 4L constituting the first port are prevented from flowing into the casing 7 and thus to the second fluid port 5.
- the flow adjustment mode is a mode in which the degree to which the left pipe 4L or the right pipe 4R communicates with the casing 7 can be adjusted.
- the conditions of the three-way valve for setting the shut mode and the flow adjustment mode are as follows.
- the valve body 8 has an arc shape.
- a port hole diameter angle ⁇ is an angle that spreads about the rotation shaft 9 between both end surfaces on the inside of the casing 7 corresponding to the hole diameters of the first fluid ports 4L and 4R.
- the port separation angle ⁇ increases around the rotation axis 9 between the left pipe 4L and the right pipe 4R.
- An angle of 180 degrees or less spreading around the rotation axis 9 between both end portions of the valve body 8 is a valve body closing angle ⁇ c. “360 degrees ⁇ c” is the valve body open angle ⁇ o.
- the port separation angle ⁇ is “the port hole diameter angle ⁇ or more and 180 degrees or less”.
- the valve body closing angle ⁇ c is “360 degrees—the port hole diameter angle ⁇ or less”, and the relationship between the port hole diameter angle ⁇ , the port separation angle ⁇ , and the valve body opening angle ⁇ o is ⁇ o ⁇ ⁇ + ⁇ .
- the function of the shut mode and the function of the flow adjustment mode can be set.
- valve element closing angle (valve element closing angle) ⁇ c is set to 135 degrees smaller than 180 degrees. Further, the port hole diameter angle (suction opening angle) ⁇ is 45 degrees, and the port separation angle (suction pipe arrangement angle) ⁇ is 180 degrees.
- FIG. 15 shows the operation of each rotary valve unit in the eight flow path patterns in the third embodiment.
- the first rotary valve portion 1 to the third rotary valve portion 3 are not shown as the valves 1 to 3.
- L in the column of the flow path pattern indicates a state where the inflowing fluid from the left pipe 4L is discharged.
- R indicates a state in which the inflow fluid from the right pipe 4R is discharged.
- Mat is described by omitting the mixing mode in which the fluid flows into the casing 7 from both the left pipe 4L and the right pipe 4R and exits from the discharge pipe as the second fluid port 5.
- Flow control is a flow control mode. Further, S or shut indicates a shut mode.
- the port separation angle ⁇ is “the port hole diameter angle ⁇ is not less than 180 degrees”.
- the valve body closing angle ⁇ c is “360 degrees—the port hole diameter angle ⁇ or less”, and the relationship “ ⁇ o ⁇ ⁇ + ⁇ ” among the port hole diameter angle ⁇ , the port separation angle ⁇ , and the valve body opening angle ⁇ o is: It is established that 225 degrees ⁇ 45 degrees + 180.
- FIG. 16 is a schematic perspective view of the flow path switching device according to the fourth embodiment. This flow path switching device constitutes a 2-in-3-out valve.
- FIG. 16 is a schematic perspective view of a flow path switching device using a crank mechanism in the fifth embodiment.
- the crank mechanism 61 includes crank gears 62a, 62b, and 62c, a first rotating body 31, a second rotating body 32, a third rotating body 33, a common shaft 34, crank arms 64a, 64b, and 64c.
- FIG. 18 shows a crank mechanism according to the fifth embodiment and shows a configuration viewed from the direction of arrow XVIII in FIG.
- the first rotating body 31 is rotated by a common shaft 34 that is rotated by a motor serving as the drive source 22.
- first crank gear 62a meshing with the first rotating body 31 rotates.
- the first links 65a and 66a reciprocate by the first crank arm 64a rotating integrally with the shaft center of the first crank gear 62a.
- a part of the rotating shaft 9 that rotates together with the internal valve body 8 is exposed outside the casing 6 of the rotary valve portion 1.
- FIG. 19 shows a configuration viewed from the direction of arrow XIX in FIG.
- the relationship among the 3rd rotary body 33 of FIG. 17, the crank gear 62c, and the crank arm 64c is the same as that of FIG.
- the second rotating body 32 is rotated by a common shaft 34 that is rotated by a motor serving as the drive source 22.
- the second crank gear 62b that meshes with the second rotating body 32 rotates.
- the second link rod 65b that forms the second link and the cam plate 66b reciprocate by the second crank arm 64b that rotates integrally with the shaft center of the second crank gear 62b.
- FIG. 20 shows the internal configuration of the rotary valve unit.
- the peripheral wall of the casing 6 is provided with a left pipe 4L and a right pipe 4R that form a first fluid port, and a discharge pipe that forms a second fluid port 5.
- the space 7 in the casing 6 has a cylindrical shape, and the left side pipe 4L, the right side pipe 4R, and the second fluid port 5 are arranged at different positions on the peripheral wall.
- the valve body 8 has an arc shape along the peripheral wall. Since this rotary valve part has the same configuration as a general three-way valve, it is easy to manufacture.
- the port hole diameter angle (suction opening angle) ⁇ is 22.5 degrees.
- FIG. 21 shows the flow of fluid in the three rotary valve portions in the eight flow path patterns in the sixth embodiment.
- the rotation angle and the stop position of the valve body 8 are described in the order of the first rotary valve unit 1 (valve 1), the second rotary valve unit 2 (valve 2), and the third rotary valve unit 3 (valve 3). is doing.
- L is a valve mode indicating that a fluid flows through the left suction pipe constituting the left pipe 4L.
- R indicates a valve mode in which fluid flows through the right suction pipe forming the right pipe 4R.
- the first pattern P1 among the operation patterns -90 degrees, -90 degrees, -90 in the order of the first rotary valve portion 1, the second rotary valve portion 2, and the third rotary valve portion 3. Stop at the valve rotation angle position.
- the first rotary valve unit 1, the second rotary valve unit 2, and the third rotary valve unit 3 are stopped at the valve rotation angle positions of 22.5 degrees, 67.5 degrees, and -45 degrees in this order.
- the eighth pattern P8 the first rotary valve unit 1, the second rotary valve unit 2, and the third rotary valve unit 3 stop at the valve rotation angle positions of 90 degrees, -90 degrees, and -90 degrees in this order.
- the flow path switching device is configured by combining the rotary valves of 1 in 1 out.
- each rotary valve part 1 The drive mechanism 21 has a connection structure in which the rotation angles of the two and three valve bodies 8 are 1: 2: 3. This constitutes a 1-in-3-out flow path switching device using a single drive source 22.
- a plurality of rotary valve portions 1, 2, and 3 are configured so that each internal rotation shaft 9 is perpendicular to the juxtaposition direction of the rotary valve portions 1, 2, and 3 (left and right direction in FIG. 22) It is provided in parallel.
- the drive mechanism 21 includes a spur gear train that is rotated by a drive source 22. According to this, it is possible to obtain a flat flow path switching device having a small thickness in the direction of the rotation shaft 9 (the vertical thickness in FIG. 22).
- FIG. 23 shows a planar shape of the valve body 8 in each of the rotary valve portions 1, 2, and 3.
- the rotating shaft 9 of the valve body 8 extends in the front-rear direction of the paper surface of FIG. 23, and extends in the up-down direction in FIG.
- the valve body 8 has an opening 83 through which a fluid flows between two solid projections 81 and 82.
- FIG. 24 schematically shows a planar shape looking down from the upper side of the drawing of FIG. 22 to the lower side of the drawing.
- the first valve gear 91 is rotated by the output gear of the motor forming the single drive source 22, and the rotation of the first valve gear 91 drives the second rotary valve unit 2 via the two connecting gears 92 and 93. Is transmitted to the second valve gear 94.
- the number of the rotary valve portions 1, 2, and 3 is 3, 2 to the third power, that is, eight patterns of channel switching can be realized.
- FIG. 25 is an internal configuration diagram showing the flow of fluid in the rotary valve portions 1, 2, and 3 (first valve, second valve, and third valve) in eight flow path patterns.
- the rotation angle (operating angle) of the first rotary valve unit 1 (first valve) is shown as 0 degrees, 50 degrees, 67 degrees... 315 degrees.
- a rotation angle (valve 1 operating angle) of 0 degree fluid flows through the openings of all valve bodies 8 of the first valve to the third valve.
- valve 1 operating angle 120 degrees
- the fluid flows to the first valve with the flow rate adjusted, and the flow adjustment mode is set as indicated by the dashed arrow.
- the rotation angle (valve 1 operation angle) 147 degrees the first valve is in a shut state, and fluid flows through the second valve and the third valve as shown by a solid line. In this case, the fluid flows from the first port connected to the common fluid piping 41 toward the second port.
- the plurality of rotary valve portions 1, 2, and 3 are provided in parallel with each other so that each rotary shaft 9 is arranged in a direction perpendicular to the juxtaposition direction of the plurality of rotary valve portions 1, 2, and 3. Therefore, a flat flow path switching device having a small thickness in the rotation axis direction can be obtained.
- a plurality of rotary valves having the same internal structure are arranged side by side.
- a plurality of rotary valves having different internal structures are driven by a single drive mechanism, and You may drive so that the position of the valve body of a valve may mutually differ.
- FIG. 26 shows the eighth embodiment along arrows XXVI-XXVI in FIG.
- the flow path switching device of FIG. 26 has a plurality of rotary valve portions 1 and 2 arranged side by side.
- Each rotary valve part 1, 2 has a casing 6, side walls formed inside the casing 6 and facing each other, and a peripheral wall 13 formed between these side walls.
- the peripheral wall 13 is provided with a plurality of seal rubbers 13s made of EPDM.
- the side walls are not visible because they are located on the near side and the far side of the page.
- 1st fluid port 4L1, 4R1 provided in the surrounding wall 13 of the rotary valve part 1 is provided.
- the first fluid ports 4L1, 4R1 are connected to a first common fluid pipe 41 and a second common fluid pipe 42, respectively.
- the first common fluid pipe 41 and the second common fluid pipe 42 constitute a first suction port 41 and a second suction port 42.
- FIG. 1 has 2nd fluid port 5L1, 5R1 provided in the surrounding wall 13 of the rotary valve part 1.
- the second fluid ports 5L1, 5R1 constitute a first discharge port 5L1 and a second discharge port 5R1. It should be noted that when simply referred to as the second fluid port 5, both the first fluid ports 5L1 and 5R1 are shown.
- FIG. 1st fluid ports 4L2 and 4R2 are connected to a first common fluid pipe 41 and a second common fluid pipe 42, respectively.
- FIG. 2nd fluid port 5L2, 5R2 provided in the surrounding wall 13 of the rotary valve part 2.
- the second fluid ports 5L2, 5R2 constitute a first discharge port 5L2 and a second discharge port 5R2. Note that when the second fluid port 5 is simply referred to with respect to the rotary valve portion 2, both the first fluid ports 5L2 and 5R2 are shown.
- valve bodies 80a and 80b (referred to collectively as the valve body 8) of the rotary valve portions 1 and 2 have different configurations. These valve bodies 8 are coupled to a rotating shaft 9. As can be seen from FIG. 26, the valve body 80a has a bent substantially U-shaped partition wall 8ak, and the valve body 80b has a substantially I-shaped partition wall 8bk. By these partition walls 8ak and 8bk, the flow of fluid through the partition walls 8ak and 8bk in the valve body 8 is blocked.
- FIG. 28 shows the flow path switching device viewed from the direction of arrow XXVIII in FIG.
- the rotary shafts 9 of the rotary valve portions 1 and 2 are connected to a gear mechanism that constitutes a drive mechanism 21.
- the rotation of the motor constituting the drive source 22 is transmitted to the gear mechanism constituting the drive mechanism 21 by the common rotating shaft 34 constituting the motor torque transmission unit.
- the drive mechanism 21 is stored in the drive mechanism storage unit 210.
- the first fluid port 4L1, 4R1 provided in the rotary valve unit 1 is provided.
- the first fluid ports 4L1, 4R1 are connected to a first common fluid pipe 41 and a second common fluid pipe 42, respectively.
- the second fluid ports 5L1 and 5R1 (FIG. 26) provided in the rotary valve unit 1 are omitted in FIG. Similarly, it has 1st fluid port 4L2, 4R2 provided in the rotary valve part 2.
- FIG. The first fluid ports 4L2, 4R2 are connected to a first common fluid pipe 41 and a second common fluid pipe 42, respectively.
- the second fluid ports 5L2, 5R2 (FIG. 26) provided in the rotary valve portion 2 are omitted in FIG.
- FIG. 28 shows a configuration in another depth of the flow path switching device viewed from the direction of the arrow XXVIII in FIG.
- the cooling water flows from the first common fluid pipe 42 into the first fluid ports 4R1, 4R2, as in the cooling water flow indicated by arrows Y291 to Y293.
- the rotation angle detection device (potentiometer) 43 shown in FIG. 28 detects the rotation angle (position) based on the electrical resistance.
- a magnetic body may be disposed on the rotating body, and the change of the magnetic body may be detected in a non-contact manner by a Hall element, or a slit is provided in the rotating disk, and its own rotation angle is integrated and measured by an optical sensor. You may do it.
- the drive mechanism 21 was comprised from the gear mechanism which produces the differential rotation of the valve bodies 80a and 80b (FIG. 26), differential rotation used not only the gear mechanism but the link mechanism, the cam mechanism, and the pulley. You may comprise either of the mechanism or the structure combined together.
- first common fluid pipe 41 and the second common fluid pipe 42 constitute the first suction port 41 and the second suction port 42, but the flow of fluid in each port is reversed. It can also be used.
- first common fluid pipe 41 and the second common fluid pipe 42 may be configured as the first discharge port 41 and the second discharge port 42.
- this eighth embodiment constitutes a 2-input 4-output flow path switching device. And it has two valve bodies 80a and 80b, and each valve body 80a and 80b is a four-way valve. By connecting each valve body 80a and 80b with the rotation angle ratio 4: 5, the valve body 8 is Eight flow path switching patterns are realized during two rotations.
- the flow path switching device includes two systems of cooling water (two systems having different temperature zones) connected to an output port to be cooled equipment, temperature control equipment, cold / hot water generation equipment, and cold storage heat. It can be used in a fluid circuit that selectively distributes cooling water according to the temperature requirements of any device such as a device.
- the flow path switching device can use the waste heat of the equipment as a heating heat source or an endothermic heat source of other equipment by distributing cooling water with different temperature zones according to the demands of each equipment. It becomes.
- the flow pattern to control the cold storage / heat device and the device that requires cold / hot water, It can be set as the flow-path switching apparatus which implements heat management.
- the flow-path switching apparatus of this embodiment is installed in the upstream and downstream of each said apparatus. And it becomes possible to increase a flow path pattern rather than the case where only one flow path switching apparatus is installed by arrange
- FIG. 30 shows a case where the valve body 80a and the valve body 80b of the rotary valve portions 1 and 2 are both in the basic state (operation pattern 1) in the eighth embodiment in which the valve body rotation angles are 0 degrees (0 deg). The flow of fluid is shown.
- valve body rotation angle of the valve body 80a also referred to as valve body A
- valve body 80b also referred to as valve body B
- FIG. 31 shows the valve body rotation angle of the valve body 80a (also referred to as valve body A) and the valve body 80b (also referred to as valve body B) of each rotary valve portion 1 and 2 in the eighth embodiment, and FIG.
- the flow of fluid discharged from the discharge ports a to d is shown. Then, it flows through the suction port (1) (also referred to as the first common fluid piping 41 or the port e) shown in FIG. 30 or the like, or the suction port (2) (also referred to as the second common fluid piping 42 or the port f) side. Shows how it flows.
- 4 way indicates a 4-way valve.
- the thick lines L1 and L2 indicate that the valve body 8 has made one revolution at this time.
- null indicates that the valve body 8 stops at an unintended (not used) position where the suction port (1) side and the suction port (2) side are connected.
- FIG. 32 shows the flow of fluid in the case of the operation pattern 2 in which the valve body rotation angles of the valve bodies 80a and 80b of the rotary valve portions 1 and 2 are 36 degrees and 45 degrees in the eighth embodiment.
- FIG. 33 shows the flow of fluid in the case of the operation pattern 3 in which the valve body rotation angles of the valve bodies 80a and 80b of the rotary valve portions 1 and 2 are 108 degrees and 135 degrees in the eighth embodiment. .
- FIG. 34 shows the flow of fluid in the case of the operation pattern 4 in which the valve body rotation angles of the valve bodies 80a and 80b of the rotary valve portions 1 and 2 are 144 degrees and 180 degrees in the eighth embodiment.
- FIG. 35 shows a fluid flow in the case of the operation pattern 5 in which the valve body rotation angles of the valve bodies 80a and 80b of the rotary valve portions 1 and 2 are 360 degrees and 450 degrees in the eighth embodiment. .
- FIG. 36 shows the flow of fluid in the case of the operation pattern 6 in which the valve body rotation angles of the valve bodies 80a and 80b of the rotary valve portions 1 and 2 are 396 degrees and 495 degrees in the eighth embodiment.
- FIG. 37 shows the flow of fluid in the case of the operation pattern 7 in which the valve body rotation angles of the valve bodies 80a and 80b of the rotary valve portions 1 and 2 are 468 degrees and 585 degrees in the eighth embodiment.
- FIG. 38 shows the fluid flow in the eighth embodiment in the case of the operation pattern 8 in which the valve body rotation angles of the valve bodies 80a and 80b of the rotary valve portions 1 and 2 are 504 degrees and 630 degrees. ing.
- the eighth embodiment has the first fluid ports 4L1, 4R1 (FIG. 26) provided on the peripheral wall 13 of the rotary valve unit 1.
- the first fluid ports 4L1, 4R1 are connected to a first common fluid pipe 41 and a second common fluid pipe 42, respectively.
- it has 2nd fluid port 5L1, 5R1 provided in the surrounding wall 13 of the rotary valve part 1.
- FIG. 1st fluid ports 4L2 and 4R2 are connected to a first common fluid pipe 41 and a second common fluid pipe 42, respectively.
- FIG. 2nd fluid port 5L2, 5R2 is shown in FIG.
- the valve bodies 80a and 80b of the rotary valve portions 1 and 2 have different configurations.
- the valve body 80a has a substantially U-shaped partition wall 8ak that is bent, and the valve body 80b has a substantially I-shaped partition wall 8bk.
- the rotary shafts 9 (FIG. 28) of the rotary valve units 1 and 2 are connected to a gear mechanism that constitutes a drive mechanism 21.
- the rotation of the motor constituting the drive source 22 is transmitted to the gear mechanism constituting the drive mechanism 21 by the common rotating shaft 34 constituting the motor torque transmission unit.
- the cooling water flows from the first common fluid pipe 41 into the first fluid ports 4L1, 4L2. Further, the cooling water flows from the second common fluid pipe 42 into the first fluid ports 4R1, 4R2.
- the first common fluid pipe 41 and the second common fluid pipe 42 constitute the first suction port 41 and the second suction port 42.
- the flow of the fluid in each port may be reversed and used. it can.
- the first common fluid pipe 41 and the second common fluid pipe 42 may be configured as a first discharge port and a second discharge port 42.
- the above-described channel switching device performs channel switching of two inputs and four outputs. And it has two valve bodies 8, and each valve body 8 is a four-way valve, and when each valve body 8 is connected and rotated with a rotation angle ratio 4: 5, the valve body 8 rotates twice. In the meantime, eight flow path switching patterns (operation patterns) are realized.
- each rotary valve section 1, 2 has a casing 6, side walls 11, 12 (FIG. 28) formed inside the casing 6 and facing each other, and a peripheral wall 13 formed between the side walls 11, 12.
- each rotary valve portion 1, 2 has at least one first fluid port 4 ⁇ / b> L ⁇ b> 1, 4 ⁇ / b> R ⁇ b> 1 (or 4 ⁇ / b> L ⁇ b> 2, 4 ⁇ / b> R ⁇ b> 2) provided on the peripheral wall 13 and a second fluid provided on the peripheral wall 13.
- each rotary valve part 1 and 2 was rotatably supported by the rotating shaft 9 (FIG. 27A, FIG. 27B, FIG. 28) extended in the direction which connects between the opposing side walls 11 and 12 inside the casing 6.
- FIG. The valve body 8 (80a, 80b) is provided. Then, the rotation of the valve body 8 forms a flow path in which the first fluid ports 4L1, 4R1 (or 4L2, 4R2) and the second fluid ports 5L1, 5R1 (or 5L2, 5R2) of FIG. To do.
- a drive mechanism 21 (FIG. 28) is provided for driving each valve body 80a, 80b by a predetermined rotation angle.
- the drive mechanism 21 includes a single drive source 22 and a power transmission member that transmits the rotational power of the single drive source 22 to the rotary valve units 1 and 2.
- the power of the drive source 22 is transmitted to the rotary shafts 9 of the plurality of rotary valve units 1 and 2.
- the positions of the respective valve bodies 8 with respect to the first fluid ports 4L1, 4R1 (or 4L2, 4R2) and the second fluid ports 5L1, 5R1 (or 5L2, 5R2) are driven to different positions.
- a single drive is provided with a plurality of rotary valve sections 1 and 2 having first fluid ports 4L1, 4R1 (or 4L2, 4R2) and second fluid ports 5L1, 5R1 (or 5L2, 5R2).
- a plurality of flow paths can be switched by the source 22.
- the axial length of the rotating shaft 9 can be shortened, and a comparatively many flow path can be switched.
- the second fluid port may be a single port.
- the first fluid ports 4L1, 4R1 (or 4L2, 4R2) of the plurality of rotary valve portions 1 and 2 are connected to the common fluid pipes 41 and 42, respectively.
- the plurality of rotary valve portions 1 and 2 are mechanically connected to the common fluid pipes 41 and 42. According to this, since the plurality of rotary valve portions 1 and 2 are connected to the common fluid piping 41 and 42, respectively, the connection strength of the plurality of rotary valve portions 1 and 2 is increased by the common fluid piping 41 and 42. Can do.
- the plurality of valve bodies 8 connected to the drive mechanism 21 are repeatedly rotated by a predetermined rotation angle and stopped, so that at least one set of valve bodies 8 are mutually connected. Rotate and stop at different rotation angles. According to this, a plurality of patterns of flow paths can be switched by juxtaposing the plurality of rotary valve portions 1 and 2.
- FIG. 39 shows a temperature control device for in-vehicle equipment using the flow path switching device according to the ninth embodiment.
- two flow path switching devices 100 and 101 are provided, and a plurality of in-vehicle devices are connected between the flow path switching devices 100 and 101 by piping. 39 is the same as that of the eighth embodiment shown in FIG.
- the flow path switching device 101 of FIG. 39 is an independent control valve (four-way valve that is driven independently of the flow path switching device of the eighth embodiment shown in FIG. ) 30 is attached.
- the flow path switching device 101 of FIG. 39 differs from the flow path switching device of the eighth embodiment shown in FIGS. 26, 30 and the like in the direction of the fluid flowing through the first common fluid pipe 41 and the first common fluid pipe 42. The reverse is true. That is, both the first common fluid pipe 41 and the first common fluid pipe 42 are used as discharge ports.
- the independent control valve 30 is attached to the tip of the first common fluid pipe 41 (port e2) in FIG.
- the flow path switching device shown in FIG. 42 and FIG. 43 (12th and 13th embodiments), which will be described later and integrated as a flow path switching device, is used as the flow path switching device 101 in FIG. May be.
- the cooling water flows from the radiator system pump 103 into the port e1 of the flow path switching device 100.
- the cooling water from the bypass path 111 b flows from the internal circulation system pump 104 into the port f ⁇ b> 1 of the flow path switching device 100.
- Cooling water is supplied from the ports ⁇ 2 and ⁇ 2 of the independent control valve 30 to the radiator 105 and the radiator bypass path 106.
- Ports a to f shown in FIG. 30 and the like are also entered as a1 to f1 (a2 to f2) in FIG.
- an inverter 107 of an electric vehicle or a hybrid vehicle serving as a vehicle is connected between the discharge ports c (between c1 and c2).
- a chiller (water heating evaporator) 108 for exchanging heat between the refrigerant of the vehicle air conditioner and the cooling water is connected between the discharge ports b.
- a water-cooled condenser 109 and a heater core 110 for exchanging heat between the refrigerant of the vehicle air conditioner and the cooling water are connected.
- a water-cooled battery 111 of an electric vehicle or a hybrid vehicle as a vehicle is connected between the discharge ports d.
- a battery temperature adjustment heat exchanger for exchanging heat between fluid and air in an air guide path to the battery may be disposed.
- Compressor 112 constituting the refrigeration cycle of the vehicle air conditioner compresses the refrigerant and sends it to water-cooled condenser 109.
- the heater core 110 is disposed in an air conditioning duct through which the conditioned air 110f flows, and warms the conditioned air toward the vehicle interior.
- the chiller 108 is disposed in the air conditioning duct through which the conditioned air flows, and cools the conditioned air toward the vehicle interior.
- the discharge port a is connected to the path of the water-cooled condenser 109 in which the heater core 110 exists on the way.
- the discharge port b is connected to the path of the chiller 108.
- the discharge port c is connected to an inverter 107 (which may be an electric device such as a motor, or may be a water-cooled intercooler or a cold storage heat device).
- the discharge port d is connected to a water-cooled battery 111 (which may be a cold storage heat device or a ventilation heat recovery device).
- FIG. 40 shows a temperature control device for in-vehicle equipment different from FIG. 39 using the flow path switching device according to the tenth embodiment.
- FIG. 40 there are two flow path switching devices 100a and 101a, and a plurality of in-vehicle devices are connected by piping between these flow path switching devices 100a and 101a.
- the flow path switching devices 100a and 101a in FIG. 40 are provided with independent control valves 30a that are driven independently of the flow path switching device in the eighth embodiment shown in FIG.
- the flow path switching device 101a has the direction of the fluid flowing through the first common fluid pipe 41 and the first common fluid pipe 42 opposite to that of the flow path switching device of the eighth embodiment shown in FIG. That is, both the first common fluid pipe 41 and the first common fluid pipe 42 are used as discharge ports.
- the flow-path switching apparatus 100a has the independent control valve 30a attached to the left end of the 1st common fluid piping 41 of FIG. 30, for example. 42 and 43 (twelfth and thirteenth embodiments), which will be described later, are integrated as a flow switching device up to such an independent control valve, and are used as the flow switching device 100a in FIG. May be.
- a chiller system pump (low temperature system pump) 121 supplies water to a path that circulates with the chiller 108, the flow path switching device 100a, the independent control valve 30a, the cooler core 115, and the flow path switching device 101a. Yes.
- a water-cooled condenser system pump (high-temperature system pump) 122 supplies water to the water-cooled condenser 109, the heater core 110, the flow path switching device 100a, the water-cooled battery 111, etc., and the path that circulates with the flow path switching device 101a.
- the discharge ports a to f shown in FIG. 30 etc. are also entered as a1 to f1 (a2 to f2) in FIG.
- a radiator 105 that radiates heat of the engine (not shown) is connected between the discharge ports a (between a1 and a2).
- a radiator bypass path 106 is connected between the discharge ports b.
- an inverter 107 of an electric vehicle or a hybrid vehicle as a vehicle is connected between the discharge ports d.
- a water-cooled battery 111 of an electric vehicle or a hybrid vehicle as a vehicle is connected between the discharge ports d.
- the compressor 112 constituting the refrigeration cycle compresses the refrigerant and sends it to the water-cooled condenser 109.
- the refrigerant condensed after passing through the water-cooled condenser 109 flows through the expansion valve 113 to the chiller 108 which should be called a water heating evaporator.
- the heater core 110 is disposed in an air conditioning duct through which the conditioned air 110f flows, and warms the conditioned air 110f toward the vehicle interior.
- the chiller 108 cools the water flowing inside by the evaporation of the refrigerant, the cooled water flows, and cools the cooler core 115 disposed in the air conditioning duct to cool the conditioned air 115f.
- the discharge port a is connected to the path of the radiator 105.
- the discharge port b is connected to the radiator bypass path 106.
- the discharge port c is connected to an inverter 107 (which may be an electric device such as a motor).
- the discharge port d is connected to a water-cooled battery 111 (which may be a cold storage heat device or a ventilation heat recovery device).
- the cooler core 115 of the vehicle air conditioner is connected to the downstream side of the independent control valve 30a (downstream side of the port ⁇ 1). Connected to.
- 41 shows still another temperature control device for in-vehicle equipment using a pair of flow path switching devices having ports a to d according to the eleventh embodiment. 41, the fluid of the system 2 discharged from the discharge port c communicates with the system 1 side in the case of the fluid flow pattern of FIG.
- a specific flow path can be blocked by taking different operation patterns such as pattern 1 and pattern 2 with a pair of opposed flow path switching devices.
- one flow path switching device can generate only 8 operation patterns, but a combination of two flow path switching devices can be used to block a specific path. It is possible to create more than 8 patterns of flow paths.
- a twelfth embodiment will be described. Features different from the above-described embodiment will be described.
- the first fluid ports 4L1, 4R1 are provided on the peripheral wall 13 of the rotary valve portion 1, and the first fluid ports 4L1, 4R1 are respectively the first common fluid.
- the pipe 41 and the second common fluid pipe 42 are connected.
- FIG. 31 has 2nd fluid port 5L1, 5R1 provided in the surrounding wall 13 of the rotary valve part 1.
- FIG. Similarly, it has 1st fluid ports 4L2 and 4R2 provided in the surrounding wall 13 of the rotary valve part 2.
- the first fluid ports 4L2, 4R2 are connected to a first common fluid pipe 41 and a second common fluid pipe 42, respectively.
- it has 2nd fluid port 5L2, 5R2 provided in the surrounding wall 13 of the rotary valve part 2.
- the eight operation patterns shown in FIG. 31 are realizable.
- the internal valve body is rotationally controlled independently of the rotary valve portions 1 and 2 in the first common fluid pipe 41 or the second common fluid pipe 42 of the eighth embodiment.
- An independent multi-way valve (not limited to a 4-way valve) is added.
- the drive mechanism unit may be shared, or may be controlled independently by using a power distribution mechanism from a single drive source.
- FIG. 42 shows a flow path switching device according to the twelfth embodiment. 42 can be used, for example, as the channel switching device 101 in FIG. 39 (ports a to d, e, ⁇ , and ⁇ in FIG. 42 are ports a2 to d2, e2, corresponding to ⁇ 2 and ⁇ 2.)
- the port a receives the water flow from the water-cooled condenser 109 via the heater core 110.
- Port b receives the water flow from chiller 108.
- Port c receives the water flow from the inverter 107.
- Port d receives the water flow from the water-cooled battery 111.
- one of the common fluid pipes 41 and 42 of the rotary valve parts 1 and 2 is flowing into the internal circulation system pump 104 through the bypass path of the water-cooled battery 111 (FIG. 39) as a port f.
- the other 42 (42a, 42b) of the common fluid pipes 41, 42 of the rotary valve portions 1, 2 is connected to the independent four-way control valve 30, and ports ⁇ , ⁇ are connected to the radiator 105 and the independent four-way control valve 30.
- a water flow is discharged to the radiator bypass path 106.
- the rotary valve portions 1 and 2 in FIG. 42 are equipped with a mechanism that rotates in conjunction with a rotation angle ratio of 4: 5, and the valve bodies 80a and 80b are driven by a single drive source.
- the independent four-way control valve 30 has the same valve structure as that of the rotary valve 1, but is independent of the rotary valve units 1 and 2 by another drive source (motor) different from the drive source of the rotary valve units 1 and 2. Driven.
- a plurality of rotary valve portions 1 and 2 are juxtaposed.
- Each rotary valve portion 1, 2 is formed between the casing 6 and the side walls formed inside the casing 6 and facing each other (the side walls are on the back side and the front side in FIG. 42, not shown) and between these side walls.
- a peripheral wall 13 formed.
- Each rotary valve portion 1, (2) includes at least one first fluid port 4L1, 4R1 (4L2, 4R2) (collectively 4L, 4R) provided on the peripheral wall 13.
- second fluid ports 5L1, 5R1 (5L2, 5R2) (collectively 5L, 5R) provided on the peripheral wall 13 are provided.
- a valve body 80a (80b) (generally 8) rotatably supported by a rotating shaft extending in a direction connecting the opposing side walls in the casing 6 is provided. And the flow path which the 1st fluid port (4L, 4R) and the 2nd fluid port (5L, 5R) communicate selectively with rotation of the valve body 8 is formed.
- the drive mechanism 1 includes a single drive source and a power transmission member that transmits the rotational power of the single drive source to the rotary valve units 1 and 2. And the motive power of the motor used as a drive source is transmitted to each rotating shaft of the plurality of rotary valve portions 1 and 2 to position the respective valve bodies 8 with respect to the first fluid ports 4L and 4R and the second fluid ports 5L and 5R. Are driven to different positions.
- the first fluid ports 4L and 4R of the plurality of rotary valve portions 1 and 2 are connected to the common fluid pipes 41 and 42, respectively.
- the common fluid piping 42 is divided into 42a and 42b, and the independent control valve 30 is added between the common fluid pipings 42a and 42b.
- the independent control valve 30 is driven by a motor different from the motor that drives the rotary valve units 1 and 2.
- the plurality of rotary valve portions 1 and 2 are mechanically connected to the common fluid pipes 41 and 42.
- the plurality of valve bodies 8 connected to the drive mechanism 21 are repeatedly rotated by a predetermined rotation angle and stopped, and at least one set of valve bodies 8 is rotated by a rotation angle different from each other. Stop.
- the first fluid ports 4L and 4R are composed of one side pipe 4L and the other side pipe 4R communicating with the inside of the casing 6 at different positions.
- the common fluid pipes 41 and 42 include a first common fluid pipe 41 and a second common fluid pipe 42 (42a and 42b) through which different fluids flow, respectively.
- a plurality of rotary valve sections 1 and 2 sandwiched between the first common fluid pipe 41 and the second common fluid pipe 42 (42a, 42b) are connected by the first common fluid pipe 41 and the second common fluid pipe 42. ing.
- the motor serving as the driving source rotates a common shaft extending in parallel with the juxtaposition direction of the rotary valve portions 1 and 2, and this common shaft is rotated.
- the rotary valve units 1 and 2 are driven through the above.
- the plurality of rotary valve portions 1 and 2 are provided in parallel with each other such that their respective rotation axes are arranged in a direction perpendicular to the juxtaposition direction of the plurality of rotary valve portions 1 and 2.
- a drive mechanism (not shown) includes a gear train that is rotated by a drive source.
- the common fluid piping 42 is divided into 42a and 42b, and the independent control valve 30 is added between the common fluid pipings 42a and 42b.
- the common fluid piping 42 is provided with an independent control valve 30 composed of a rotary valve that switches valves independently of the plurality of rotary valve portions 1 and 2, and the independent control valve 30 includes a plurality of rotary valves. It is provided between the valve parts 1 and 2.
- the independent control valve 30 two of the four ports are connected to the common fluid pipes 42a and 42b.
- the first fluid ports 4L, 4R of the plurality of rotary valve units 1, 2 are connected to a pair of common fluid pipes 41, 42.
- One common fluid pipe 42 is divided into two common fluid pipe portions 42a and 42b, and the common fluid pipe portions 42a and 42b are independently controlled independently of the plurality of rotary valve portions 1 and 2b.
- a control valve 30 is provided.
- the fluid can be distributed to an arbitrary pipe from between the portions 42a and 42b of the common fluid pipe regardless of the control state of the plurality of rotary valve units 1 and 2.
- the independent control valve 30 itself is integrated with at least one common fluid pipe 42.
- the connection strength of the plurality of rotary valve parts can be increased by the common fluid pipe and the independent control valve 30. it can.
- the independent control valve 30 is composed of a rotary valve in which the valves are switched independently of the plurality of rotary valve units 1 and 2.
- the independent control valve 30 is provided between the plurality of rotary valve portions 1 and 2, and at least two of the plurality of ports of the independent control valve 30 are connected to the common fluid pipes 42 a and 42 b.
- FIG. 43 is a partial cross-sectional view of the flow path switching device showing the thirteenth embodiment.
- the flow path switching device of FIG. 43 can be used, for example, as the flow path switching device 101 of FIG.
- port a receives the water flow from the water-cooled condenser 109 via the heater core 110.
- Port b receives the water flow from chiller 108.
- Port c receives the water flow from the inverter 107.
- Port d receives the water flow from the water-cooled battery 111.
- one of the common fluid pipes 41 of the rotary valve portions 1 and 2 is flowing fluid to the internal circulation system pump 104 via the bypass path 111b of the water-cooled battery as a port f (f2).
- the other 42 (42a, 42b) of the common fluid piping of the rotary valve portions 1, 2 is connected to an independent four-way control valve 30, and ports ⁇ , ⁇ ( ⁇ 2, ⁇ 2) are connected to the independent four-way control valve 30. Discharge water flow.
- the rotary valve units 1 and 2 are mounted with a valve structure that rotates in conjunction with a rotation angle ratio of 4: 5, and the valve bodies 80a and 80b are driven by a single drive source.
- the independent four-way control valve 30 is driven independently of the rotary valve units 1 and 2 by another drive source (motor) different from the drive source of the rotary valve units 1 and 2.
- each rotary valve portion 1, 2 has a casing 6, a side wall formed inside the casing 6 and opposed to each other (the side walls are on the back side and the front side in FIG. 43) and between these side walls. And a peripheral wall 13 formed on the surface.
- Each rotary valve portion 1, (2) includes at least one first fluid port 4 L 1, 4 R 1 (4 L 2, 4 R 2) (generally 4 L, 4 R) provided on the peripheral wall 13 and a second fluid port provided on the peripheral wall 13. Fluid ports 5L1, 5R1 (5L2, 5R2) (collectively 5L, 5R).
- it has a valve body 80a (80b) (generally 8) rotatably supported on a rotating shaft extending in a direction connecting the opposing side walls inside the casing 6. And the flow path which the 1st fluid port (4L, 4R) and the 2nd fluid port (5L, 5R) communicate selectively with rotation of the valve body 8 is formed.
- a drive mechanism for driving each valve body 8 by a predetermined rotation angle includes a single drive source and a power transmission member that transmits the rotational power of the single drive source to the rotary valve units 1 and 2. And the motive power of the motor used as a drive source is transmitted to each rotating shaft of the plurality of rotary valve portions 1 and 2, and the position of each valve body 8 with respect to the first fluid ports 4L and 4R and the second fluid ports 5L and 5R. Are driven to different positions.
- the first fluid ports 4L and 4R of the plurality of rotary valve portions 1 and 2 are connected to the common fluid piping 41 and the common fluid piping 42 (42a and 42b).
- the common fluid piping 42 is divided into 42a and 42b, and the independent control valve 30 is added between the common fluid pipings 42a and 42b.
- the independent control valve 30 is driven by a motor different from the motor that drives the rotary valve units 1 and 2.
- the plurality of rotary valve portions 1 and 2 are mechanically connected to the common fluid pipes 41 and 42.
- the plurality of valve bodies 8 connected to a drive mechanism (not shown) are repeatedly rotated by a predetermined rotation angle and stopped, and at least one set of valve bodies 8 is rotated by a rotation angle different from each other. Stop.
- the first fluid ports 4L and 4R are composed of one side pipe 4L and the other side pipe 4R communicating with the inside of the casing 6 at different positions.
- the common fluid pipes 41 and 42 include a first common fluid pipe 41 and a second common fluid pipe 42 through which different fluids flow, respectively.
- a plurality of rotary valve portions 1 and 2 sandwiched between the first common fluid pipe 41 and the second common fluid pipe 42 are connected by the first common fluid pipe 41 and the second common fluid pipe 42.
- the motor as a drive source rotates a common shaft extending in parallel with the juxtaposition direction of the rotary valve units 1 and 2 via the common shaft.
- the rotary valve units 1 and 2 are driven.
- the plurality of rotary valve portions 1 and 2 are provided in parallel with each other such that their respective rotation axes are arranged in a direction perpendicular to the juxtaposition direction of the plurality of rotary valve portions 1 and 2.
- a drive mechanism (not shown) includes a gear train that is rotated by a drive source.
- the common fluid piping 42 is divided into 42a and 42b, and an independent control valve 30 is added between the common fluid pipings 42a and 42b.
- an independent control valve 30 including a rotary valve that is switched independently of the plurality of rotary valve portions 1 and 2 is provided between the common fluid pipes 42a and 42b.
- the rotary valve portions 1 and 2 are provided at the end portions.
- two of the four ports are connected to the common fluid pipes 42a and 42b.
- the independent control valve 30 and at least one of the rotary valves 1 and 2 have the same valve structure, which facilitates production.
- the first fluid ports 4L, 4R of the plurality of rotary valve units 1, 2 are connected to a pair of common fluid pipes 41, 42.
- One common fluid pipe 42 is divided into two common fluid pipe portions 42a and 42b, and the common fluid pipe portions 42a and 42b are independently controlled independently of the plurality of rotary valve portions 1 and 2b.
- a control valve 30 is provided.
- the independent control valve 30 itself is integrated with at least one common fluid pipe 42.
- the connection strength of the plurality of rotary valve parts can be increased by the common fluid pipe and the independent control valve 30. it can.
- the independent control valve 30 is composed of a rotary valve in which the valves are switched independently of the plurality of rotary valve units 1 and 2.
- the independent control valve 30 is provided at the ends of the plurality of rotary valve portions 1 and 2.
- at least two of the plurality of ports are connected to the common fluid pipes 42a and 42b.
- the independent control valve 30 since the independent control valve 30 is provided at the end portion, the plurality of rotary valve portions 1 and 2 can be brought close to each other. Therefore, it is easy to form a compact drive mechanism including a single drive source and a power transmission member that transmits the rotational power of the single drive source to the rotary valve units 1 and 2. Further, when the pipe connected to the independent control valve 30 is a pipe system or the like located at the end of the flow path switching device, the pipe connection is facilitated.
- the eighth embodiment, the twelfth embodiment, and the thirteenth embodiment have a plurality of rotary valve portions 1 and 2.
- At least one rotary valve portion (for example, 1, the same applies hereinafter) of the rotary valve portions 1 and 2 includes a plurality of first fluid ports (4L1, 4R1) and a plurality of second fluid ports (5L1, 5R1). .
- Any one of the first fluid ports (4L1 or 4R1) has a valve operation pattern communicating with at least two second fluid ports (5L1, 5R1).
- any one of the first fluid ports (4L1 or 4R1) has a plurality of valve operation patterns communicating with at least two second fluid ports (5L1, 5R1), thereby connecting a plurality of ports connected to each port.
- the same system of fluid can be distributed to the equipment.
- the plurality of first fluid ports (4L1, 4R1) have different fluids (in the temperature range) as shown in FIGS. 39 and 40, for example. Different fluids flow. A plurality of positions of the valve bodies (80a, 80b) where the communication states of the plurality of first fluid ports (4L1, 4R1) are blocked by the partition walls (8ak, 8bk) provided in the valve bodies (80a, 80b) are provided. Have.
- fluids having different temperatures flow through the plurality of first fluid ports (4L1, 4R1).
- a plurality of positions of the valve bodies (80a, 80b) where the communication states of the plurality of first fluid ports (4L1, 4R1) are blocked by the partition walls (8ak, 8bk) provided in the valve bodies (80a, 80b) are provided. Have. Therefore, it is possible to configure a fluid circuit including a fluid switching device that does not mix fluids having different temperatures.
- the drive mechanism (21) drives and stops the valve body (8). According to this, it is possible to continue flowing the fluid to a desired device in the fluid circuit including the fluid switching device that does not mix fluids having different temperatures.
- a plurality of stop positions can be set by a single drive mechanism (21), and a plurality of flow paths can be switched.
- the rotation angle of the valve body (8) until the drive mechanism (21) drives the valve body (8) to stop the valve body (8) is different in each of the plurality of rotary valve portions 1 and 2.
- the ratio of the different rotation angles is R1 to R2 (R1 / R2), there is no common divisor other than 1 between R1 and R2.
- the ratio of the rotation angles R1 to R2 may be 4 to 7, 2 to 3, 5 to 6, 7 to 6, 8 to 9 and 9 to 10 in addition to 4 to 5.
- a plurality of stop positions can be set by a single drive mechanism (21), and a plurality of flow paths can be switched. Note that a minute amount deviation of 4.1 to 4.9 or the like is allowed.
- the rotary valve parts 1 and 2 are composed of four-way valves.
- At least one rotary valve portion (for example, 1, the same applies hereinafter) of the rotary valve portions 1 and 2 includes a plurality of first fluid ports (4L1, 4R1) and a plurality of second fluid ports (5L1, 5R1). Any one of the plurality of first fluid ports (4L1, 4R1) is blocked by the partition wall of the valve body 8.
- the rotary valve portions 1 and 2 have a valve operation pattern in which the remaining first fluid ports (4L1, 4R1) and the second fluid ports (5L1, 5R1) that are not blocked communicate with each other.
- the fluid flow path switching device of the present disclosure is provided with a pair of devices facing each other across the upstream side and the downstream side of a plurality of devices connected in parallel. The fluid flowing through the device can be controlled.
- the present disclosure is not limited to the first to thirteenth embodiments described above, and can be modified or expanded as follows.
- the first rotary valve portion, the second rotary valve portion,..., The Nth rotary valve portion are juxtaposed, and the rotation angle ratio of each internal valve body is raised to the (N ⁇ 1) th power of 1: 2:.
- the example which set is described this indication is not limited to this.
- the rotation angle ratio may be slightly changed with respect to the (1: N) power of 1: 2:.
- the “rotational angle ratio of each valve element of the first rotary valve portion, second rotary valve portion... Nth rotary valve portion” that can realize a plurality of flow path patterns is the first.
- the rotary valve portion ⁇ second rotary valve portion ⁇ ... N-th rotary valve portion may be used.
- the present disclosure also includes an embodiment having a plurality of rotary valve portions and satisfying the requirement that the rotation angles of the valve bodies in each rotary valve portion are different from each other in a combination of at least one or more rotary valve portions. .
- the means for detecting the operation pattern of the rotary valve unit is the first rotary. It is mounted on the valve part.
- the rotation angle ratio is such that all the rotary valve units including the first rotary valve unit return to the original state. is necessary.
- This rotation angle ratio is a gear ratio between the driving side gear driven by the common shaft and the driven side gear driving the valve body.
- the rotation angle ratio of one or more sets of valve bodies is “1: 1” or “1: N” (N is an arbitrary natural number) (“N: 1” is also synonymous).
- N is an arbitrary natural number
- the rotary valves are driven by aligning the initial angles of the valve bodies, but the initial positions may be intentionally shifted. For example, an initial position difference (shift) of 180 degrees may be provided between a set of rotary valve portions. Further, the size of each rotary valve may be slightly changed, or the valve bodies may be different from each other.
- the flow paths can be arbitrarily distributed. And when there are N outputs, a channel switching device capable of channel switching in 2 N power patterns is obtained.
- the flow path switching device has a plurality of inputs on the input side and two outputs on the output side.
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Abstract
Description
(第1実施形態)
以下、第1実施形態について図1ないし図11を用いて詳細に説明する。図1のロータリバルブ部1はロータリ式3方弁から成る。このロータリバルブ部1は、第1流体ポートを構成する左側配管(一方側配管とも言う)4Lと右側配管(他方側配管とも言う)4R、および第2流体ポート5から成る。この実施形態における第2流体ポート5は、吐出配管を構成している。
図5のように、第1流体ポート4L、4Rは、互いに異なる位置でケーシング内部に連通する左側配管4Lと右側配管4Rとから成る。図5のように、共通流体配管41、42は、異なる流体(温水と冷水)41a、42aを夫々流す第1共通流体配管41と第2共通流体配管42とから成る。そして、第1共通流体配管41と第2共通流体配管42とに挟まれた複数のロータリバルブ部1、2、3が第1共通流体配管41と第2共通流体配管42とによって連結されている。
(数式1)N≦(180/α)-1
但し、Nは、並置されるロータリバルブ部1、2、3の個数、αはポート穴径角度である。なお、2のN乗個のパターン未満の流路切替で満足できる場合は、上記関係式を満たす必要は無い。
(第2実施形態)
次に、第2実施形態について説明する。なお、以降の各実施形態においては、上述した第1実施形態と同一の構成要素には同一の符号を付して説明を省略し、異なる構成および特徴について説明する。
(第3実施形態)
次に、第3実施形態について説明する。上述した実施形態と異なる特徴部分を説明する。図14は、第3実施形態におけるロータリバルブ部の内部構成を示す。この第3実施形態における弁体クローズ角度(弁体閉塞角度)γcは180度より小さい135度としている。また、ポート穴径角度(吸入口開口角度)αは45度、ポート離間角度(吸入パイプ配置角度)βは180度である。
(第4実施形態)
次に、第4実施形態について説明する。上述した実施形態と異なる特徴部分を説明する。図16は、第4実施形態における流路切替装置の模式的斜視図である。この流路切替装置は、2イン3アウト弁を構成する。
(第5実施形態)
次に、第5実施形態について説明する。上述した実施形態と異なる特徴部分を説明する。図17は、第5実施形態におけるクランク機構を使用した流路切替装置の模式的斜視図である。クランク機構61は、クランク歯車62a、62b、62c、第1回転体31、第2回転体32、第3回転体33、共通軸34、クランクアーム64a、64b、64c等を有する。
(第6実施形態)
次に、第6実施形態について説明する。上述した実施形態と異なる特徴部分を説明する。図20は、ロータリバルブ部の内部構成を示す。ケーシング6の周壁には、第1流体ポートを成す左側配管4Lと右側配管4Rと、第2流体ポート5を成す吐出配管が設けられている。
(第7実施形態)
次に、第7実施形態について説明する。上述した実施形態と異なる特徴部分を説明する。図22においては、1イン1アウトの各ロータリバルブ部を組み合わせて、流路切替装置を構成している。
(第8実施形態)
以下更に別の実施形態について説明する。以上の実施形態は、内部構造が同一の複数のロータリバルブ並べて配置したが、以下に述べる実施形態のように、内部構造が異なる複数のロータリバルブが単一の駆動機構にて駆動され、かつロータリバルブの弁体の位置が互いに異なるように駆動させても良い。
(第9実施形態)
次に、第9実施形態について説明する。上述した実施形態と異なる特徴部分を説明する。図39は、第9実施形態を示す流路切替装置を使用した車両内機器の温調装置を示している。図39において、2つの流路切替装置100、101を有し、これらの流路切替装置100、101間に車載の複数の機器が配管で接続されている。図39の流路切替装置100は、図26に示した第8実施形態と同じものである。
図示はしないが、冷凍サイクルは、水冷コンデンサ109から吐出した冷媒がチラーとエバポレータに流れ込む分岐配管を備えるような、2つの低圧側熱交換器を持つシステムであっても良い。
(第10実施形態)
次に、第10実施形態について説明する。上述した実施形態と異なる特徴部分を説明する。図40は、第10実施形態を示す流路切替装置を使用した図39とは別の車両内機器の温調装置を示している。図40において、2つの流路切替装置100a、101aを有し、これらの流路切替装置100a、101a間に、車載の複数の機器が配管で接続されている。図40の流路切替装置100a、101aは、図30等に示した第8実施形態の流路切替装置に独立して駆動される独立制御弁30aが取り付けられている。
(第11実施形態)
次に、第11実施形態について説明する。上述した実施形態と異なる特徴部分を説明する。図41は、第11実施形態を示すポートa~dを有する一対の流路切替装置を使用した更に別の車両内機器の温調装置を示している。図41において、吐出ポートcより吐出された系統2の流体は、図41の流体流れのパターンである場合、系統1側に連通している。
(第12実施形態)
次に、第12実施形態について説明する。上述した実施形態と異なる特徴部分を説明する。上記第8実施形態においては図26のように、ロータリバルブ部1の周壁13に設けられた第1流体ポート4L1、4R1を有し、この第1流体ポート4L1、4R1は、夫々第1共通流体配管41と第2共通流体配管42に接続されている。
(第13実施形態)
次に、第13実施形態について説明する。上述した実施形態と異なる特徴部分を説明する。図43は、第13実施形態を示す流路切替装置の一部断面図である。この図43の流路切替装置は、例えば図39の流路切替装置101として使用することができる。図43において、ポートaはヒータコア110を経由する水冷コンデンサ109からの水流を受けいれる。ポートbはチラー108からの水流を受けいれる。ポートcはインバータ107からの水流を受けいれる。ポートdは水冷式バッテリ111からの水流を受けいれる。
Claims (19)
- 並置された複数のロータリバルブ部(1、2、3)を有する流路切替装置であって、各前記ロータリバルブ部(1、2、3)は、
内部に空間(7)を形成するケーシング(6)と、
相対向する側壁(11、12)とこれら側壁(11、12)間に形成された周壁(13)と、
前記周壁(13)に設けられた少なくとも一つの第1流体ポート(4L、4R、4L1、4R1、4L2、4R2)と、
前記周壁(13)または前記側壁の一部(12)に設けられた少なくとも一つの第2流体ポート(5、5L1、5R1、5L2、5R2)と、
前記ケーシング(6)内部において前記相対向する側壁(11、12)間を結ぶ方向に延在する回転軸(9)と、回転軸(9)に回転可能に支持された弁体(8、80a、80b)と、を備え、
前記弁体(8、80a、80b)の回転によって前記第1流体ポート(4L、4R、4L1、4R1、4L2、4R2)と前記第2流体ポート(5、5L1、5R1、5L2、5R2)とが選択的に連通する流路を形成し、
流路切替装置は、各前記弁体(8、80a、80b)を夫々予め定められた回転角だけ駆動する駆動機構(21)を備え、
前記駆動機構(21)は単一の駆動源(22)と、該単一の駆動源(22)の回転動力を各前記ロータリバルブ部(1、2、3)に伝達する動力伝達部材(23-25、31-34、31a-33a、61、91-97)から成り、前記駆動源(22)の動力を複数の前記ロータリバルブ部(1、2、3)の各回転軸(9)に伝達して夫々の前記弁体(8、80a、80b)の前記第1流体ポート(4L、4R、4L1、4R1、4L2、4R2)と前記第2流体ポート(5、5L1、5R1、5L2、5R2)とに対する位置が互いに異なる位置まで夫々の弁体(8、80a、80b)を駆動することを特徴とする流路切替装置。 - 複数の前記ロータリバルブ部(1、2、3)の各前記第1流体ポート(4L、4R、4L1、4R1、4L2、4R2)に連結された共通流体配管(41、42)を備え、
複数の前記ロータリバルブ部(1、2、3)は、前記共通流体配管(41、42)と機械的に連結されていることを特徴とする請求項1に記載の流路切替装置。 - 前記駆動機構(21)に連結された複数の前記弁体(8、80a、80b)は夫々予め定められた所定の回転角だけ回転しては停止することを繰り返し、
少なくとも1対の前記弁体(8、80a、80b)が、互いに異なる回転角だけ回転して停止することを特徴とする請求項1または2に記載の流路切替装置。 - 全ての前記弁体(8、80a、80b)が、互いに異なる回転角だけ回転して停止し、前記弁体(8、80a、80b)相互間の前記回転角の比は、1対2の(n-1)乗(nは0を含まない任意の自然数)であることを特徴とする請求項1ないし3のいずれか一項に記載の流路切替装置。
- 前記第1流体ポート(4L、4R、4L1、4R1、4L2、4R2)は、互いに異なる位置で前記ケーシング(6)内部に連通する一方側配管(4L、4L1、4L2)と他方側配管(4R、4R1、4R2)とから成り、
前記共通流体配管(41、42)は、異なる流体を夫々流す第1共通流体配管(41)と第2共通流体配管(42)とから成り、
前記第1共通流体配管(41)と前記第2共通流体配管(42)とに挟まれた複数の前記ロータリバルブ部(1、2、3)が、前記第1共通流体配管(41)と前記第2共通流体配管(42)とによって連結されていることを特徴とする請求項2に記載の流路切替装置。 - 動力伝達部材(23-25、31-34、31a-33a、61、91-97)は、前記ロータリバルブ部(1、2、3)の並置方向に平行に延在する共通軸(34)を有し、
駆動源(22)は共通軸(34)を回転させ、
前記共通軸(34)を介して各前記ロータリバルブ部(1、2、3)が駆動されることを特徴とする請求項1ないし5のいずれか一項に記載の流路切替装置。 - 前記複数の前記ロータリバルブ部(1、2、3)は、少なくとも第1ロータリバルブ部(1)、第2ロータリバルブ部(2)、および第3ロータリバルブ部(3)を有し、
駆動機構(21)は、前記第1ロータリバルブ部(1)を駆動する第1回転体(31)、前記第2ロータリバルブ部(2)を駆動する第2回転体(32)、前記第3ロータリバルブ部(3)を駆動する第3回転体(33)を有し、
前記第1回転体(31)の軸である前記共通軸(34)によって前記第2回転体(32)と前記第3回転体(33)とが駆動され、
前記第1回転体(31)と、前記第2回転体(32)と、前記第3回転体(33)とに、前記第1ロータリバルブ部(1)、前記第2ロータリバルブ部(2)、および前記第3ロータリバルブ部(3)の前記弁体(8)の夫々が連結されていることを特徴とする請求項6に記載の流路切替装置。 - 前記弁体(8)は、円弧形状であることを特徴とする請求項1ないし7のいずれか一項に記載の流路切替装置。
- 前記第1流体ポート(4L、4R)の穴径に相当する前記ケーシング(6)内部側の両端面間の前記回転軸(9)を中心に広がる角度をポート穴径角度αとし、
前記弁体(8)は、円弧形状であり、前記第1流体ポート(4L、4R)は、左側配管(4L)と右側配管(4R)とから成り、
前記左側配管(4L)と前記右側配管(4R)との間の前記回転軸(9)を中心に広がる角度をポート離間角度βとし、
前記弁体(8)の両端部間の前記回転軸(9)を中心に広がる180度以下の角度を弁体クローズ角度γcとし、弁体オープン角度γoを「360度-γc」とした場合、
前記ポート離間角度βが、「前記ポート穴径角度α以上かつ180度以下」であり、かつ前記弁体クローズ角度γcが「360度-前記ポート穴径角度α以下」であり、
前記ポート穴径角度αと、前記ポート離間角度βと、前記弁体オープン角度γoとの関係が、γo≧α+βの関係を満たすことを特徴とする請求項1ないし4のうちいずれか一項に記載の流路切替装置。 - 前記駆動源(22)は、少なくとも前記第1回転体(31)と前記第2回転体(32)と前記第3回転体(33)とのうち、いずれかの回転体相互間に配設されていることを特徴とする請求項7に記載の流路切替装置。
- 前記複数のロータリバルブ部(1、2、3)は、夫々の前記回転軸(9)が複数のロータリバルブ部(1、2、3)の並置方向と直角方向に並べられて、かつ互いに平行に設けられており、
前記駆動機構(21)は、前記駆動源(22)によって回転する歯車列からなることを特徴とする請求項1ないし10のいずれか一項に記載の流路切替装置。 - 前記周壁(13)に設けられた前記第2流体ポート(5L1、5L2、5R1、5R2)は複数のポートから成り、前記弁体(80a、80b)は、少なくとも一対の前記ロータリバルブ部(1、2)同士の形状が異なることを特徴とする請求項1ないし3のいずれか一項に記載の流路切替装置。
- 前記ロータリバルブ部(1、2)のうち少なくとも一つのロータリバルブ部において、複数の前記第1流体ポート(4L1、4R1、4L2、4R2)と複数の前記第2流体ポート(5L1、5L2、5R1、5R2)とを備え、
いずれか1つの前記第1流体ポート(4L1、4R1、4L2、4R2)が少なくとも2つの前記第2流体ポート(5L1、5L2、5R1、5R2)と連通される弁の作動パターンを持っていることを特徴とする請求項1ないし3に記載の流路切替装置。 - 複数の前記第1流体ポート(4L1、4R1、4L2、4R2)には、夫々温度の異なる流体が流れ、複数の前記第1流体ポート(4L1、4R1、4L2、4R2)同士の連通状態が対応する前記弁体(80a、80b)に設けられた隔壁(8ak、8bk)によって遮断される対応する前記弁体(80a、80b)の位置で前記ロータリバルブ部(1、2)が停止することを特徴とする請求項13に記載の流路切替装置。
- 複数の前記第1流体ポート(4L1、4R1、4L2、4R2)同士の連通状態が対応する前記弁体(80a、80b)に設けられた前記隔壁(8ak、8bk)によって遮断される対応する前記弁体(80a、80b)の位置まで、前記駆動機構(21)が前記弁体(80a、80b)駆動して該弁体(80a、80b)を停止させることを特徴とする請求項14に記載の流路切替装置。
- 前記駆動機構(21)が前記弁体(80a、80b)駆動して該弁体(80a、80b)を停止させるまでの前記弁体(80a、80b)の回転角が複数のロータリバルブ部(1、2)の夫々において互いに異なることを特徴とする請求項15に記載の流路切替装置。
- 前記共通流体配管(41、42)は一対の共通流体配管(41、42)を有し、
前記複数のロータリバルブ部(1、2)の各前記第1流体ポート(4L1、4R1、4L2、4R2)は一方側配管(4L1、4L2)と他方側配管(4R1、4R2)とからなり、一方側配管(4L1、4L2)と他方側配管(4R1、4R2)は一対の前記共通流体配管(41、42)にそれぞれ連結され、一方の前記共通流体配管(42)は2つの共通流体配管の部分(42a、42b)に分かれ、この共通流体配管の部分(42a、42b)の間に、前記複数のロータリバルブ部(1、2)とは独立して制御される独立制御弁(30)が設けられていることを特徴とする請求項2に記載の流路切替装置。 - 前記独立制御弁(30)は、複数のロータリバルブ部(1、2)とは独立して弁の切り替えが成されるロータリバルブから成り、複数のロータリバルブ部(1、2)は2つのロータリバルブ部(1、2)を有し、該独立制御弁(30)は、2つのロータリバルブ部(1、2)の間に設けられ、前記独立制御弁(30)は、複数のポートのうちの少なくとも二つのポートが前記2つの共通流体配管の部分(42a、42b)のいずれかに接続されていることを特徴とする請求項17に記載の流路切替装置。
- 前記独立制御弁(30)は、複数のロータリバルブ部(1、2)とは独立して弁の切り替えが成されるロータリバルブから成り、該独立制御弁(30)は、複数のロータリバルブ部(1、2)の並置方向の端部に設けられ、前記独立制御弁(30)は、複数のポートのうちの少なくとも二つのポートが前記2つの共通流体配管の部分(42a、42b)のいずれかに接続されていることを特徴とする請求項17に記載の流路切替装置。
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CN114294448A (zh) * | 2021-12-16 | 2022-04-08 | 华人运通(江苏)技术有限公司 | 带霍尔传感器的双级阀及其控制方法、装置、车辆和介质 |
JPWO2024024400A1 (ja) * | 2022-07-28 | 2024-02-01 | ||
WO2024024399A1 (ja) * | 2022-07-28 | 2024-02-01 | 株式会社不二工機 | 流路切換弁 |
WO2024171773A1 (ja) * | 2023-02-17 | 2024-08-22 | 株式会社不二工機 | 電動弁 |
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- 2013-03-14 CN CN201380020616.9A patent/CN104246331B/zh not_active Expired - Fee Related
- 2013-03-14 US US14/391,588 patent/US9657861B2/en active Active
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Also Published As
Publication number | Publication date |
---|---|
US9657861B2 (en) | 2017-05-23 |
US20150101693A1 (en) | 2015-04-16 |
DE112013002082T5 (de) | 2014-12-31 |
JP6003716B2 (ja) | 2016-10-05 |
CN104246331A (zh) | 2014-12-24 |
CN104246331B (zh) | 2016-08-17 |
JP2013238310A (ja) | 2013-11-28 |
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