WO2016047371A1 - Control valve filter and control valve - Google Patents

Control valve filter and control valve Download PDF

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Publication number
WO2016047371A1
WO2016047371A1 PCT/JP2015/074404 JP2015074404W WO2016047371A1 WO 2016047371 A1 WO2016047371 A1 WO 2016047371A1 JP 2015074404 W JP2015074404 W JP 2015074404W WO 2016047371 A1 WO2016047371 A1 WO 2016047371A1
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WO
WIPO (PCT)
Prior art keywords
control valve
filter
port
frame
frame member
Prior art date
Application number
PCT/JP2015/074404
Other languages
French (fr)
Japanese (ja)
Inventor
吉田　淳一
剛資 大野
Original Assignee
株式会社ミクニ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 株式会社ミクニ filed Critical 株式会社ミクニ
Priority to CN201580051493.4A priority Critical patent/CN106795982B/en
Publication of WO2016047371A1 publication Critical patent/WO2016047371A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • 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
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus

Definitions

  • the present invention relates to a control valve filter and a control valve that are attached to a port portion of a control valve body and prevent foreign matter from entering the control valve body.
  • control valves are used to control the fluid pressure of a control fluid such as oil or to switch the oil passage.
  • a control fluid such as oil
  • the stable operation of a sliding member such as a valve body provided therein is impaired, or hydraulic operation Therefore, cover the port that is open on the outer periphery of the control valve body with a filter for the control valve and prevent foreign matter mixed in the oil from flowing to the actuator side. It is preventing.
  • control valve filters described in Patent Document 1 and Patent Document 2 have a substantially annular frame and a filter member provided on the frame, and a dividing portion is formed at one position of the frame. A joint is formed.
  • the engaging portion is formed by a concave portion and a convex portion.
  • Patent Document 1 and Patent Document 2 describe that a divided portion of a substantially annular frame is fitted into a stud or coupled by spot welding.
  • the control valve filter described in Patent Document 3 is formed in an annular shape, and includes a filter medium, a holding part (frame) that holds the periphery of the filter medium, and a connection part that is continuous with the holding part in the circumferential direction.
  • the connecting portion is formed so that it can be divided into two divided portions at an intermediate portion thereof, the first projection and the second projection are provided at the end of the first divided portion, and the first divided portion is provided at the end of the second divided portion.
  • One recess and a second recess are provided.
  • control valve filter When the control valve filter is mounted on the control valve body, the frame of the control valve filter is expanded and fitted around the circumferential groove provided in the control valve body, and the first protrusion and the second protrusion
  • the control valve filter is mounted on the control valve body by engaging the protrusions with the corresponding first and second recesses.
  • the frame of the control valve filter has to be enlarged when the filter is mounted on the control valve body, so that the frame may be damaged.
  • the concave portion and the convex portion are engaged by fitting the convex portion into the concave portion by so-called snap fit, the concave portion and the convex portion are easily deformed, and there is a risk of damage.
  • the divided portion of the substantially annular frame is fitted into the stud, the number of parts increases by the amount of the stud, and it takes time to assemble the stud.
  • a welding installation and a welding process are required, and a labor and cost start.
  • the present invention has been made in view of the above circumstances, and the control valve filter and the control valve filter which are not easily deformed or damaged when mounted on the control valve main body without increasing the number of parts or taking time and effort for manufacturing. It aims at providing the control valve provided with.
  • control valve filter of the present invention is a control valve filter formed on the outer peripheral portion of a cylindrical control valve body and attached to a port portion through which oil passes.
  • the fixing portion is fixed to the port portion by fitting the frame member into the frame storage portion, it is not necessary to increase the diameter of the frame member unlike the conventional case. Therefore, it is possible to prevent the frame member from being damaged due to the expanded diameter and to prevent the control valve filter from falling off from the port portion. Moreover, since it does not fix by the snap fit of a recessed part and a convex part, the deformation
  • the said structure of this invention WHEREIN: It is preferable that the said fixing
  • the thin plate is preferably formed integrally with the filter member, and the thickness of the thin plate is set to be thinner than the thickness of the frame member.
  • the fixing portion is formed of a thin metal plate, the mechanical strength is higher than that formed of resin or the like, and there is no risk of breakage. Further, since the fixing portion is formed of a thin metal plate, the rate of decrease in the flow path cross-sectional area of the port portion due to the fixing portion is reduced, and the rate of flow rate reduction can be reduced.
  • the fixing portion has a locking portion that is locked to a locked portion formed in the port portion.
  • the fixing portion of the fixing portion since the locking portion of the fixing portion is locked to the locked portion of the port portion, the fixing portion can be easily and surely fixed to the port portion. Accordingly, it is possible to reliably prevent the control valve filter from falling off the port portion.
  • the control valve of the present invention is a cylindrical control valve body in which a plurality of port portions through which oil passes is formed on the outer periphery, A spool valve body that slides within the control valve body to selectively communicate the plurality of port portions; A frame member fitted in a frame storage portion provided at an opening edge of the port portion; a filter member having a filtering function provided in the frame member; and the filter member formed integrally with the filter member. And a control valve filter including a fixing portion fixed to the port portion by being fitted into the frame storage portion.
  • the control valve filter since the frame member of the control valve filter is fitted into the frame storage portion of the control valve body, and the fixing portion is fixed to the port portion, the control valve filter is firmly attached to the control valve body. In addition, the control valve filter can be prevented from falling off from the port portion. In addition, since the frame member is fitted in the frame storage part provided at the opening edge of the port part, the control valve filter can be attached without reducing the flow path cross-sectional area of the port part. Can be reduced.
  • the frame member is in intimate contact with a seal surface provided in the frame storage portion, and the frame storage portion is recessed from the outer peripheral surface of the control valve body, It is preferable that the control valve filter in which the frame member is fitted in the frame storage portion is disposed on the inner side of the outer peripheral surface of the control valve main body.
  • control valve filter of the present invention the number of parts is not increased and the manufacturing is not time-consuming, and deformation or breakage hardly occurs when the filter is mounted on the control valve body. According to the control valve of the present invention, it is possible to firmly attach the control valve filter to the control valve main body, to prevent the control valve filter from dropping off from the port portion, and to further reduce the flow rate.
  • FIG. 1 is a cross-sectional view showing a control valve main body 2 on which a control valve filter 1 according to an embodiment of the present invention is mounted
  • FIG. 2 is a perspective view showing the control valve main body 2.
  • the control valve body 2 is formed in a substantially cylindrical shape, and a spool valve body (not shown) is accommodated therein so as to be slidable in the axial direction.
  • the control valve is composed of a control valve body 2 and a spool valve body.
  • a plurality (five) of port portions 3 through which oil passes are provided at predetermined intervals in the axial direction on the outer peripheral portion of the control valve body 2. And each port part 3 is made to communicate selectively by advancing and retracting the spool valve body in the axial direction.
  • a control valve provided with a control valve body 2 and a spool valve body switches a fluid flow path, and is interposed, for example, in a hydraulic circuit that drives a variable valve timing mechanism of an engine. That is, when the spool valve body accommodated in the control valve main body 2 moves in the axial direction, for example, the port portion 3 located in the central portion in the axial direction is changed to the port portions 3 and 3 disposed on both sides thereof.
  • the oil passage is switched, and the relative position between the cam sprocket rotating in synchronization with the crankshaft and the camshaft connected to the cam sprocket is varied.
  • the valve timing of the intake valve or exhaust valve that is opened and closed by the cam shaft can be varied in the advance direction or the retard direction according to the operating state.
  • Each of the five port portions 3 is an opening extending in an arc shape along the circumferential direction of the control valve body 2, the central port portion 3 is an oil supply port, and the port portions 3 and 3 on both sides thereof are respectively The advance port and the retard port, and the two outermost port portions 3, 3 are an advance drain port on the left side and a retard drain port on the right side.
  • the central port portion 3 and the port portions 3 and 3 on both sides thereof are arranged 180 ° apart in the circumferential direction of the control valve body 2.
  • the outermost two port portions 3 and 3 are arranged at substantially the same position as the central port portion 3 in the circumferential direction of the control valve main body 2.
  • the control valve filter 1 is attached to each of the three port portions 3 including the central port portion 3 and the port portions 3 and 3 on both sides thereof.
  • the control valve filter 1 includes a frame member 5, a filter member 6 provided on the frame member 5 and having a filtering function, and a fixing portion 7.
  • the frame member 5 is formed of a resin into a curved, substantially rectangular ring shape.
  • the curvature radius of the curved frame member 5 is substantially equal to the curvature radius of the port portion 3.
  • the frame member 5 is integrally formed by a pair of left and right arch portions 5a and 5a having an arch shape, and substantially arc-shaped connection portions 5b and 5b that connect ends of the arch portions 5a and 5a.
  • the outer surfaces of the arch portions 5a and 5a are provided in parallel, and the end portions in the longitudinal direction of the outer surfaces are smoothly connected to the arcuate curved surfaces of the connecting portions 5b and 5b.
  • the filter member 6 is fixed to the frame member 5 at a substantially central portion in the height direction (vertical direction in FIG. 3) of the frame member 5, that is, the filter member 6 is filtered at a substantially central portion in the thickness direction of the frame member 5. The member 6 is fixed.
  • the filter member 6 is formed of a punching metal having a large number of small holes, and is curved with a curvature radius substantially equal to the curvature radius of the frame member 5.
  • a filter member 6 is fixed inside the frame member 5, and is integrally formed with the frame member 5 by a resin mold when the frame member 5 is injection-molded.
  • the filter member 6 may be bonded to the frame member 5 using an adhesive.
  • the fixing part 7 is integrally formed with the filter member 6 by a thin metal plate as shown in FIG.
  • a pair of fixing portions 7 are provided in the central portion of the filter member 6 in the longitudinal direction, and a pair of fixing portions 7 are provided in the width direction of the filter member 6.
  • the fixing portion 7 is provided so as to hang down from the filter member 6, and a locking portion 7 a is formed at the tip (lower end) thereof.
  • the locking portion 7a is formed by bending the lower end portion of the fixed portion 7 toward the outer side in the width direction of the filter member 6, and is locked to the locked portion 7b formed in the port portion 3 described later. It has come to be.
  • a frame storage portion 10 is provided at the opening edge of the three port portions 3 of the control valve main body 2 to which the control valve filter 1 having such a configuration is attached.
  • the frame storage portion 10 is a portion in which the frame member 5 of the control valve filter 1 is stored, and is recessed inward from the outer peripheral surface of the control valve main body 2.
  • the frame storage portion 10 includes a first seal surface 10a orthogonal to the axial direction of the control valve body 2 (left-right direction in FIG. 5), a second seal surface 10b orthogonal to the first seal surface 10a, 3 sealing surfaces 10c (see FIG. 2) are provided.
  • the first seal surface 10 a is a flat surface formed along the circumferential direction of the control valve main body 2, and is orthogonal to the outer peripheral surface of the control valve main body 2.
  • a pair of first seal surfaces 10a are provided in one frame storage portion 10 so as to be spaced apart from each other in the axial direction of the control valve body 2, and the pair of first seal surfaces 10a, 10a is a third seal surface 10c ( (See FIG. 2).
  • the third seal surface 10 c is an arcuate curved surface, and is orthogonal to the outer peripheral surface of the control valve body 2.
  • the second seal surface 10b is an arcuate curved surface formed on the outer peripheral side of the protruding portion 11 formed to protrude in the axial direction of the control valve body 2 from the inner edge of the first seal surface 10a.
  • a pair of the storage unit 10 is provided apart from each other in the axial direction of the control valve body 2.
  • the slope of the protrusion 11 is inclined toward the center side in the width direction (left and right direction in FIG. 5) of the port portion 3 as it goes inward of the control valve body 2 (downward in FIG. 5).
  • a surface 11a is provided.
  • the maximum distance between the opposing inclined surfaces 11a and 11a, that is, the distance between the inclined surfaces 11a and 11a on the frame storage unit 10 side of the inclined surfaces 11a and 11a is the tip of the pair of fixed portions 7 of the control valve filter 1 Is set to be approximately equal to or slightly larger than the distance between the locking portions 7a and 7a.
  • the distance between the ends of the inclined surfaces 11a and 11a on the frame storage unit 10 side is the distance between the locking portions 7a and 7a. It is set slightly larger because it is almost equal to the distance between the tips.
  • the tips of the locking portions 7a and 7a come into contact with the ends of the inclined surfaces 11a and 11a by inserting the control valve filter 1 into the port portion 3 from the radially outer side of the control valve main body 2, and the inclined surfaces 11a. , 11a so as to slide along the inner side.
  • the parallel surface 11b parallel to the radial direction of the control valve main body 2 is provided continuously from the inclined surface 11a, and the distance between the parallel surfaces 11b and 11b facing each other is greater than the distance between the locking portions 7a and 7a. It is set small. And the inner peripheral surface of the protrusion part 11 orthogonal to this parallel surface 11b becomes the to-be-latched part 7b by which the latching
  • the locking portions 7a and 7a are opened apart from each other by the elastic restoring force of the fixing portions 7 and 7, and the locked portions 7b and 7b 7b.
  • the to-be-latched part 7b is formed with the circular-arc-shaped curved surface
  • the locking part 7a is also formed in the circular arc shape which closely_contact
  • the control valve filter 1 is attached to the port portion 3 having the frame storage portion 10 having such a configuration at the opening edge portion. That is, the frame member 5 of the control valve filter 1 is fitted into the frame storage unit 10, and the control valve filter 1 fitted into the frame storage unit 10 is disposed on the inner side of the outer peripheral surface of the control valve body 2. ing. Specifically, the frame member 5 of the control valve filter 1 is disposed on the inner side with a predetermined step from the outer peripheral surface of the control valve main body 2, and the filter member 6 is further disposed on the inner side.
  • the first seal surface 10a, the second seal surface 10b, and the third seal surface 10c of the frame storage unit 10 are in close contact.
  • the fixing portion 7 of the control valve filter 1 is inserted into the port portion 3, and the locking portion 7 a at the tip of the fixing portion 7 is locked to the locked portion 7 b on the inner peripheral surface of the protruding portion 11. is doing. As a result, the control valve filter 1 is prevented from falling off the port portion 3.
  • the control valve filter 1 When the control valve filter 1 is attached to the port portion 3, the control valve filter 1 is pushed into the port portion 3 from the outside in the radial direction of the control valve body 2 as shown in FIG. 7. Then, the frame member 5 of the control valve filter 1 is fitted into the frame storage portion 10, and the arch of the frame member 5 is placed on the first seal surface 10 a, the second seal surface 10 b, and the third seal surface 10 c of the frame storage portion 10. The outer surface of the portion 5a, the lower surface of the arch portion 5a, and the outer peripheral surface of the connecting portion 5b are in close contact.
  • the fixing portion 7 is inserted into the port portion 3, and the tips of the locking portions 7a and 7a slide while hitting the inclined surfaces 11a and 11a. So that the fixing portions 7 and 7 are elastically bent so that the ends of the locking portions 7a and 7a pass through the parallel surfaces 11b and 11b. The parts 7a and 7a are opened so as to be separated from each other, and locked to the locked parts 7b and 7b. As a result, the control valve filter 1 is attached to the port portion 3, and the locking portion 7a prevents the dropout from the port portion 3.
  • the control valve A to which the control valve filter 1 is attached in this manner is inserted into a cylindrical attachment hole 15a formed in the engine-side device 15 as shown in FIG.
  • a gap S serving as an oil passage is provided between the inner peripheral surface 15b of the mounting hole 15a and the control valve filter 1. Therefore, the entire gap S can be used as an oil passage, and oil can be passed through the entire surface of the filter member 6, so that a decrease in flow rate due to the installation of the control valve filter 1 can be reduced.
  • the fixing member 7 is fixed to the port portion 3 by fitting the frame member 5 of the control valve filter 1 into the frame storage portion 10. There is no need to increase the diameter of 5. Therefore, breakage of the frame member 5 due to this diameter expansion can be prevented. Moreover, since it does not fix by the snap fit of a recessed part and a convex part, the deformation
  • the control valve filter 1 can be attached without reducing the flow path cross-sectional area of the port portion 3, Therefore, the rate of decrease in the oil flow rate can be reduced.
  • the fixing portion 7 is formed of a thin metal plate, the mechanical strength is higher than that formed of resin or the like, and there is no risk of breakage. Moreover, since the fixing
  • the control valve filter 1 since the frame member 5 of the control valve filter 1 is fitted into the frame storage portion 10 of the control valve main body 2 and the fixing portion 7 is fixed to the port portion 3, the control valve filter 1 is connected to the control valve main body 2. The control valve filter 1 can be prevented from falling off from the port portion 3. Further, the first seal surface 10a, the second seal surface 10b, and the third seal surface 10c of the frame storage unit 10 are provided with the outer surface of the arch portion 5a of the frame member 5, the lower surface of the arch portion 5a, and the outer peripheral surface of the connecting portion 5b. Since they are in close contact, entry of foreign matter from between the frame storage unit 10 and the frame member 5 can be suppressed.
  • the frame member 5 when oil enters the control valve main body 2 through the port portion 3, the frame member 5 is pressed against the frame storage portion 10 by hydraulic pressure, so that the seal surfaces (first seal surface 10a, second seal surface 10b, second The sealing performance at the three sealing surfaces 10c) can be improved.
  • a clearance S serving as an oil passage is provided between the inner peripheral surface 15b of the mounting hole 15a of the device 15 and the control valve filter 1, the entire clearance can be used as an oil passage. Reduction can be reduced.
  • control valve filter 1 is attached to the port portion 3 of the control valve main body 2, the control valve filter 1 is attached to the control valve main body having a larger diameter than the control valve main body 2 in the present embodiment.
  • the outer diameter of the control valve body 2 of the present embodiment is 18 ⁇
  • the outer peripheral portion of the control valve body having an outer diameter of 20 ⁇ or 22 ⁇ has the same shape as the port portion 3 in the control valve body 2 having an outer diameter of 18 ⁇ .
  • the filter member 6 of the control valve filter 1 is formed of punching metal, the diameters of a large number of small holes that fulfill the filtering function can be freely set.
  • control valve filter 1 is formed by integrally molding the punching metal and the frame member 5 with a resin mold, a small hole having a desired hole diameter is formed by the same bending mold used for the resin mold.
  • the hole diameter corresponding to the required flow rate can be set by integrally forming the punching metal having the shape and the frame member 5.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Details Of Valves (AREA)
  • Valve Housings (AREA)
  • Filtration Of Liquid (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

　The purpose of the invention is to provide a control valve filter that does not require extra components or increased complexity to manufacture, and is unlikely to be deformed or damaged when mounted on a control valve main body; and to provide a control valve comprising said control valve filter. The control valve filter comprises a frame member 5 fitted into a frame-housing part 10 provided on the edge of an opening of a port part 3 of a control valve main body 2, a filter member 6 provided to the frame member 5, and a secured part 7 formed integrally with the filter member 6 and secured to the port part 3 by the frame member 5 being fitted into the frame-housing part 10; therefore, unlike the prior art, the diameter of the frame member 5 does not need to be increased when the control valve filter 1 is attached to the port part 3. This makes it possible to prevent damage to the frame member that would be caused by this diameter enlargement. Because the control valve filter 1 is attached to the port part 3 by the secured part 7 being secured to the port part 3, the number of components is not increased and manufacturing requires no further complexity.

Description

制御弁用フィルタおよび制御弁Control valve filter and control valve
　本発明は、制御弁本体のポート部に装着して制御弁本体内への異物の混入を防止する制御弁用フィルタおよび制御弁に関する。 The present invention relates to a control valve filter and a control valve that are attached to a port portion of a control valve body and prevent foreign matter from entering the control valve body.
　エンジンの油圧制御系などでは油などの制御流体の流体圧を制御し、あるいは油路を切り換えるための制御弁が多く用いられている。このような制御弁では、油に混入した異物が制御弁本体内に侵入し、あるいは吐出されると、内部に設けられている弁体等の摺動部材の安定動作が損なわれ、あるいは油圧動作されるアクチュエータの動作支障を来す可能性があることから、制御弁本体の外周に開口されているポート部を制御弁用フィルタで覆い、油に混入されている異物がアクチュエータ側へ流れることを防止している。 In engine hydraulic control systems and the like, many control valves are used to control the fluid pressure of a control fluid such as oil or to switch the oil passage. In such a control valve, when foreign matter mixed in oil enters or is discharged into the control valve body, the stable operation of a sliding member such as a valve body provided therein is impaired, or hydraulic operation Therefore, cover the port that is open on the outer periphery of the control valve body with a filter for the control valve and prevent foreign matter mixed in the oil from flowing to the actuator side. It is preventing.
　このような制御弁用フィルタとして特許文献１～特許文献３に記載のものが知られている。
　特許文献１および特許文献２に記載の制御弁用フィルタは、略環状のフレームとこのフレームに設けられたフィルタ部材とを有し、フレームの一カ所に分断部が形成され、この分断部に係合部が形成されている。この係合部は凹部と凸部とによって形成されている。
　そして、このような制御弁用フィルタを制御弁本体に装着する場合、フレームを拡径して制御弁本体の外周部に巻き付け、係合部の凹部と凸部とを周方向において近づけて、凸部を凹部に弾性的に押し込んで嵌めこむ、いわゆるスナップフィットによって嵌め込むことによって、凹部と凸部を係合することで、制御弁用フィルタを制御弁本体装着している。
　また、同特許文献１および特許文献２には、略環状のフレームの分断部をスタッドに嵌め込むことや、スポット溶接によって結合することが記載されている。 As such a control valve filter, those described in Patent Documents 1 to 3 are known.
The control valve filters described in Patent Document 1 and Patent Document 2 have a substantially annular frame and a filter member provided on the frame, and a dividing portion is formed at one position of the frame. A joint is formed. The engaging portion is formed by a concave portion and a convex portion.
When such a control valve filter is mounted on the control valve body, the frame is enlarged in diameter and wound around the outer periphery of the control valve body, and the concave and convex portions of the engaging portion are brought close to each other in the circumferential direction. The control valve main body is mounted on the control valve filter by engaging the concave portion and the convex portion by fitting the concave portion and the convex portion by elastically pushing the portion into the concave portion.
Further, Patent Document 1 and Patent Document 2 describe that a divided portion of a substantially annular frame is fitted into a stud or coupled by spot welding.
　特許文献３に記載の制御弁用フィルタは、円環状に形成され、濾材と、濾材の周縁を保持する保持部（フレーム）と、保持部に周方向で連なる接続部とから構成されている。接続部はその中間部分で２つの分割部に分割可能に形成され、第１分割部の端部には、第１突起および第２突起が設けられ、第２分割部の端部には、第１凹部および第２凹部が設けられている。
　そして、制御弁用フィルタを制御弁本体に装着する場合、制御弁用フィルタのフレームを拡径して制御弁本体に設けられた周溝に巻き付けるようにして嵌め込むとともに、第１突起および第２突起を対応する第１凹部および第２凹部に係合することで、制御弁用フィルタを制御弁本体に装着している。 The control valve filter described in Patent Document 3 is formed in an annular shape, and includes a filter medium, a holding part (frame) that holds the periphery of the filter medium, and a connection part that is continuous with the holding part in the circumferential direction. The connecting portion is formed so that it can be divided into two divided portions at an intermediate portion thereof, the first projection and the second projection are provided at the end of the first divided portion, and the first divided portion is provided at the end of the second divided portion. One recess and a second recess are provided.
When the control valve filter is mounted on the control valve body, the frame of the control valve filter is expanded and fitted around the circumferential groove provided in the control valve body, and the first protrusion and the second protrusion The control valve filter is mounted on the control valve body by engaging the protrusions with the corresponding first and second recesses.
特許第４１８３７００号公報Japanese Patent No. 4183700 特許第３７３６１８６号公報Japanese Patent No. 3736186 特開２００４－１１７４２号公報JP 2004-11742 A
　しかしながら、前記特許文献１～３に記載の制御弁用フィルタでは、それを制御弁本体に装着する際に、制御弁用フィルタのフレームを拡径しなければならないので、フレームが破損する虞がある。
　また、凸部を凹部にいわゆるスナップフィットによって嵌め込むことによって、凹部と凸部を係合しているので、凹部と凸部が変形し易く、破損の虞もある。
　また、略環状のフレームの分断部をスタッドに嵌め込む場合、スタッドの分、部品点数が増加するとともに、このスタッドの組み付けにも手間がかかる。
　さらに、スポット溶接によって分断部を結合する場合、溶接設備や溶接工程が必要であり、手間とコストがかかる。 However, in the control valve filter described in Patent Documents 1 to 3, the frame of the control valve filter has to be enlarged when the filter is mounted on the control valve body, so that the frame may be damaged. .
Further, since the concave portion and the convex portion are engaged by fitting the convex portion into the concave portion by so-called snap fit, the concave portion and the convex portion are easily deformed, and there is a risk of damage.
In addition, when the divided portion of the substantially annular frame is fitted into the stud, the number of parts increases by the amount of the stud, and it takes time to assemble the stud.
Furthermore, when joining a part by spot welding, a welding installation and a welding process are required, and a labor and cost start.
　本発明は前記事情に鑑みてなされたもので、部品点数が増えたり製造に手間がかかることなく、しかも制御弁本体に装着する際に変形や破損し難い制御弁用フィルタおよびこの制御弁用フィルタを備えた制御弁を提供することを目的としている。 The present invention has been made in view of the above circumstances, and the control valve filter and the control valve filter which are not easily deformed or damaged when mounted on the control valve main body without increasing the number of parts or taking time and effort for manufacturing. It aims at providing the control valve provided with.
　前記目的を達成するために、本発明の制御弁用フィルタは、円筒状の制御弁本体の外周部に形成され、油を通過させるポート部に取り付けられる制御弁用フィルタであって、
　前記ポート部の開口縁部に設けられた枠格納部に嵌め込まれる枠部材と、
　前記枠部材に設けられた濾過機能を有するフィルタ部材と、
　前記フィルタ部材に一体的に形成され、前記枠部材を前記枠格納部に嵌め込むことによって、前記ポート部に固定される固定部とを備えたことを特徴とする。 To achieve the above object, the control valve filter of the present invention is a control valve filter formed on the outer peripheral portion of a cylindrical control valve body and attached to a port portion through which oil passes.
A frame member fitted into a frame storage portion provided at an opening edge of the port portion;
A filter member having a filtration function provided in the frame member;
And a fixing portion that is integrally formed with the filter member and is fixed to the port portion by fitting the frame member into the frame storage portion.
　本発明においては、枠部材を枠格納部に嵌め込むことによって、固定部がポート部に固定されるので、従来と異なり枠部材を拡径する必要がない。よって、この拡径に起因する枠部材の破損を防止できるとともに、制御弁用フィルタのポート部からの脱落を阻止できる。
　また、凹部と凸部とのスナップフィットによって固定するものでないので、これに起因する変形や破損が生じることもない。
　さらに、固定部がポート部に固定されることで、制御弁用フィルタがポート部に取り付けられるので、部品点数が増えたり、製造に手間がかかることがない。
　また、枠部材をポート部の開口縁部に設けられた枠格納部に嵌め込むので、ポート部の流路断面積を減らすことなく、制御弁用フィルタを取り付けることができ、よって、油の流量の低下率を低減できる。 In the present invention, since the fixing portion is fixed to the port portion by fitting the frame member into the frame storage portion, it is not necessary to increase the diameter of the frame member unlike the conventional case. Therefore, it is possible to prevent the frame member from being damaged due to the expanded diameter and to prevent the control valve filter from falling off from the port portion.
Moreover, since it does not fix by the snap fit of a recessed part and a convex part, the deformation | transformation and damage resulting from this do not arise.
Furthermore, since the control part filter is attached to the port part by fixing the fixing part to the port part, the number of parts does not increase and the manufacturing process does not take time.
In addition, since the frame member is fitted into the frame storage portion provided at the opening edge of the port portion, the control valve filter can be attached without reducing the flow path cross-sectional area of the port portion. Can be reduced.
　本発明の前記構成において、前記固定部は金属製の薄板によって形成されているのが好ましい。
　ここで、薄板はフィルタ部材と一体的に形成するのが好ましく、当該薄板の厚さは、枠部材の厚さより薄く設定される。 The said structure of this invention WHEREIN: It is preferable that the said fixing | fixed part is formed with the metal thin plate.
Here, the thin plate is preferably formed integrally with the filter member, and the thickness of the thin plate is set to be thinner than the thickness of the frame member.
　このような構成によれば、固定部が金属製の薄板によって形成されているので、樹脂等によって形成されているものに比して、機械的強度が強く、破損の虞がない。
　また、固定部が金属製の薄板によって形成されているので、この固定部によるポート部の流路断面積の低下率が低くなり、流量低下率を低減できる。 According to such a configuration, since the fixing portion is formed of a thin metal plate, the mechanical strength is higher than that formed of resin or the like, and there is no risk of breakage.
Further, since the fixing portion is formed of a thin metal plate, the rate of decrease in the flow path cross-sectional area of the port portion due to the fixing portion is reduced, and the rate of flow rate reduction can be reduced.
　また、本発明の前記構成において、前記固定部は、前記ポート部に形成された被係止部に係止される係止部を有することが好ましい。 Moreover, in the configuration of the present invention, it is preferable that the fixing portion has a locking portion that is locked to a locked portion formed in the port portion.
　このような構成によれば、固定部の係止部がポート部の被係止部に係止するので、固定部を容易かつ確実にポート部に固定できる。したがって、制御弁用フィルタのポート部からの脱落を確実に阻止できる。 According to such a configuration, since the locking portion of the fixing portion is locked to the locked portion of the port portion, the fixing portion can be easily and surely fixed to the port portion. Accordingly, it is possible to reliably prevent the control valve filter from falling off the port portion.
　本発明の制御弁は、油を通過させる複数のポート部が外周部に形成された円筒状の制御弁本体と、
　前記複数のポート部を選択的に連通させるように前記制御弁本体内で摺動するスプール弁体と、
　前記ポート部の開口縁部に設けられた枠格納部に嵌め込まれる枠部材と、前記枠部材に設けられた濾過機能を有するフィルタ部材と、前記フィルタ部材に一体的に形成され、前記枠部材を前記枠格納部に嵌め込むことによって、前記ポート部に固定される固定部とを含む制御弁用フィルタと、を備えることを特徴とする。 The control valve of the present invention is a cylindrical control valve body in which a plurality of port portions through which oil passes is formed on the outer periphery,
A spool valve body that slides within the control valve body to selectively communicate the plurality of port portions;
A frame member fitted in a frame storage portion provided at an opening edge of the port portion; a filter member having a filtering function provided in the frame member; and the filter member formed integrally with the filter member. And a control valve filter including a fixing portion fixed to the port portion by being fitted into the frame storage portion.
　本発明においては、制御弁本体の枠格納部に制御弁用フィルタの枠部材が嵌め込まれるとともに、固定部がポート部に固定されているので、制御弁用フィルタを制御弁本体に強固に取り付けることができるとともに、ポート部からの制御弁フィルタの脱落を阻止できる。
　また、枠部材がポート部の開口縁部に設けられた枠格納部に嵌め込まれているので、ポート部の流路断面積を減らすことなく、制御弁用フィルタを取り付けることができ、よって、流量の低下率を低減できる。 In the present invention, since the frame member of the control valve filter is fitted into the frame storage portion of the control valve body, and the fixing portion is fixed to the port portion, the control valve filter is firmly attached to the control valve body. In addition, the control valve filter can be prevented from falling off from the port portion.
In addition, since the frame member is fitted in the frame storage part provided at the opening edge of the port part, the control valve filter can be attached without reducing the flow path cross-sectional area of the port part. Can be reduced.
　本発明の前記構成において、前記枠格納部に設けられたシール面に前記枠部材が密接されており、前記枠格納部は前記制御弁本体の外周面より凹んでおり、
　前記枠格納部に前記枠部材が嵌め込まれた前記制御弁用フィルタは、前記制御弁本体の外周面より内側に配置されているのが好ましい。 In the configuration of the present invention, the frame member is in intimate contact with a seal surface provided in the frame storage portion, and the frame storage portion is recessed from the outer peripheral surface of the control valve body,
It is preferable that the control valve filter in which the frame member is fitted in the frame storage portion is disposed on the inner side of the outer peripheral surface of the control valve main body.
　このような構成によれば、機器に形成されている取付穴に、制御弁を挿入した構造において、前記取付穴の内周面と、前記制御弁用フィルタとの間に油路となる隙間が設けられる。したがって、この隙間全体を油路として使用できるため、制御弁用フィルタの設置による流量低下を低減できる。
　また、枠格納部に設けられたシール面に前記枠部材が密接されているので、枠格納部と枠部材との間からの異物侵入を抑えることができる。
　また、油がポート部を通って制御弁本体に入る場合、油圧によって、枠部材が枠格納部に押し付けられるので、シール面でのシール性を高めることができる。 According to such a configuration, in the structure in which the control valve is inserted into the mounting hole formed in the device, there is a gap serving as an oil path between the inner peripheral surface of the mounting hole and the control valve filter. Provided. Therefore, since this whole gap can be used as an oil passage, a decrease in flow rate due to the installation of the control valve filter can be reduced.
Moreover, since the said frame member is closely_contact | adhered to the sealing surface provided in the frame storage part, the foreign material penetration | invasion from between a frame storage part and a frame member can be suppressed.
Further, when oil enters the control valve main body through the port portion, the frame member is pressed against the frame storage portion by hydraulic pressure, so that the sealing performance on the sealing surface can be improved.
　本発明の制御弁用フィルタによれば、部品点数が増えたり製造に手間がかかることなく、しかも制御弁本体に装着する際に変形や破損が生じ難い。
　本発明の制御弁によれば、制御弁用フィルタを制御弁本体に強固に取り付けることができるとともに、ポート部からの制御弁フィルタの脱落を阻止でき、さらに、流量低下を低減できる。 According to the control valve filter of the present invention, the number of parts is not increased and the manufacturing is not time-consuming, and deformation or breakage hardly occurs when the filter is mounted on the control valve body.
According to the control valve of the present invention, it is possible to firmly attach the control valve filter to the control valve main body, to prevent the control valve filter from dropping off from the port portion, and to further reduce the flow rate.
本発明の実施の形態の制御弁用フィルタが装着された制御弁本体を示す断面図である。It is sectional drawing which shows the control valve main body with which the filter for control valves of embodiment of this invention was mounted | worn. 本発明の実施の形態の制御弁用フィルタが装着される前の制御弁本体を示す斜視図である。It is a perspective view which shows the control valve main body before the filter for control valves of embodiment of this invention is mounted | worn. 本発明の実施の形態の制御弁用フィルタを示すもので、（ａ）は斜視図、（ｂ）は斜め下方から見た斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS The filter for control valves of embodiment of this invention is shown, (a) is a perspective view, (b) is the perspective view seen from diagonally downward. 本発明の実施の形態の制御弁用フィルタのフィルタ部材を示す斜視図である。It is a perspective view which shows the filter member of the filter for control valves of embodiment of this invention. 本発明の実施の形態の制御弁用フィルタを取り付ける制御弁本体のポート部の断面図である。It is sectional drawing of the port part of the control valve main body which attaches the filter for control valves of embodiment of this invention. 本発明の実施の形態の制御弁のポート部を示す断面図である。It is sectional drawing which shows the port part of the control valve of embodiment of this invention. 本発明の実施の形態の制御弁用フィルタを制御弁本体に取り付ける方法を説明するための正面図である。It is a front view for demonstrating the method of attaching the filter for control valves of embodiment of this invention to a control valve main body. 本発明の実施の形態の制御弁を機器の取付穴に挿入した状態を示す要部の断面図である。It is sectional drawing of the principal part which shows the state which inserted the control valve of embodiment of this invention in the attachment hole of an apparatus.
　以下、本発明の実施の形態について図面を参照して説明する。
　図１は本発明の実施の形態の制御弁用フィルタ１が装着された制御弁本体２を示す断面図、図２は制御弁本体２を示す斜視図である。
　制御弁本体２は略円筒状に形成され、その内部には図示しないスプール弁体が軸方向に摺動自在に収容されるようになっている。なお、制御弁は、制御弁本体２とスプール弁体とで構成される。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view showing a control valve main body 2 on which a control valve filter 1 according to an embodiment of the present invention is mounted, and FIG. 2 is a perspective view showing the control valve main body 2.
The control valve body 2 is formed in a substantially cylindrical shape, and a spool valve body (not shown) is accommodated therein so as to be slidable in the axial direction. The control valve is composed of a control valve body 2 and a spool valve body.
　制御弁本体２の外周部には、油を通過させる複数（５個）のポート部３が軸方向に所定間隔で設けられている。そして、スプール弁体を軸方向に進退動作させることで、各ポート部３を選択的に連通させるようになっている。
　制御弁本体２とスプール弁体とを備えた制御弁は流体の流路を切り換えるもので、例えばエンジンの可変バルブタイミング機構を駆動する油圧回路中に介装されている。すなわち、制御弁本体２の内部に収容されているスプール弁体の軸方向への移動により、例えば軸方向中央部に位置するポート部３を、その両側に配設されているポート部３，３に対して選択的に連通させることで、油路を切り換え、クランク軸に同期して回転するカムスプロケットと、このカムスプロケットに連設するカム軸との間の相対位置を可変させる。カムスプロケットとカム軸との相対位置を可変させることで、カム軸によって開閉動作される吸気弁あるいは排気弁のバルブタイミングを運転状態に応じて進角方向または遅角方向に可変させることができる。 A plurality (five) of port portions 3 through which oil passes are provided at predetermined intervals in the axial direction on the outer peripheral portion of the control valve body 2. And each port part 3 is made to communicate selectively by advancing and retracting the spool valve body in the axial direction.
A control valve provided with a control valve body 2 and a spool valve body switches a fluid flow path, and is interposed, for example, in a hydraulic circuit that drives a variable valve timing mechanism of an engine. That is, when the spool valve body accommodated in the control valve main body 2 moves in the axial direction, for example, the port portion 3 located in the central portion in the axial direction is changed to the port portions 3 and 3 disposed on both sides thereof. By selectively communicating with each other, the oil passage is switched, and the relative position between the cam sprocket rotating in synchronization with the crankshaft and the camshaft connected to the cam sprocket is varied. By varying the relative position between the cam sprocket and the cam shaft, the valve timing of the intake valve or exhaust valve that is opened and closed by the cam shaft can be varied in the advance direction or the retard direction according to the operating state.
　５つのポート部３は、それぞれ制御弁本体２の周方向に沿って円弧状に延在する開口部であり、中央部のポート部３はオイル供給ポート、その両側のポート部３，３はそれぞれ進角ポートと遅角ポート、最も外側にある２つのポート部３，３は左側が進角ドレインポート、右側が遅角ドレインポートとなっている。
　中央部のポート部３とその両側のポート部３，３とは、制御弁本体２の周方向において１８０°離間して配置されている。また、最も外側にある２つのポート部３，３は制御弁本体２の周方向において、中央部のポート部３とほぼ同位置に配置されている。
　このような５つのポート部３のうち、中央部のポート部３とその両側のポート部３，３との３つのポート部３にそれぞれ制御弁用フィルタ１が装着されるようになっている。 Each of the five port portions 3 is an opening extending in an arc shape along the circumferential direction of the control valve body 2, the central port portion 3 is an oil supply port, and the port portions 3 and 3 on both sides thereof are respectively The advance port and the retard port, and the two outermost port portions 3, 3 are an advance drain port on the left side and a retard drain port on the right side.
The central port portion 3 and the port portions 3 and 3 on both sides thereof are arranged 180 ° apart in the circumferential direction of the control valve body 2. The outermost two port portions 3 and 3 are arranged at substantially the same position as the central port portion 3 in the circumferential direction of the control valve main body 2.
Of the five port portions 3, the control valve filter 1 is attached to each of the three port portions 3 including the central port portion 3 and the port portions 3 and 3 on both sides thereof.
　制御弁用フィルタ１は、図３に示すように、枠部材５とこの枠部材５に設けられた濾過機能を有するフィルタ部材６と、固定部７とを有している。
　枠部材５は、樹脂によって、湾曲した略矩形リング状に形成されている。湾曲した枠部材５の曲率半径は、ポート部３の曲率半径とほぼ等しくなっている。枠部材５は、アーチ状の左右一対のアーチ部５ａ，５ａと、このアーチ部５ａ，５ａの端部どうしを連結する略円弧状の連結部５ｂ，５ｂとで一体的に形成されている。
　アーチ部５ａ，５ａの外側面は平行に設けられ、この外側面の長手方向の端部は連結部５ｂ，５ｂの円弧状の曲面と滑らかに接続されている。
　また、フィルタ部材６は枠部材５の高さ方向（図３において上下方向）の略中央部において、枠部材５に固定されている、つまり、枠部材５の厚さ方向の略中央部にフィルタ部材６が固定されている。 As shown in FIG. 3, the control valve filter 1 includes a frame member 5, a filter member 6 provided on the frame member 5 and having a filtering function, and a fixing portion 7.
The frame member 5 is formed of a resin into a curved, substantially rectangular ring shape. The curvature radius of the curved frame member 5 is substantially equal to the curvature radius of the port portion 3. The frame member 5 is integrally formed by a pair of left and right arch portions 5a and 5a having an arch shape, and substantially arc-shaped connection portions 5b and 5b that connect ends of the arch portions 5a and 5a.
The outer surfaces of the arch portions 5a and 5a are provided in parallel, and the end portions in the longitudinal direction of the outer surfaces are smoothly connected to the arcuate curved surfaces of the connecting portions 5b and 5b.
Further, the filter member 6 is fixed to the frame member 5 at a substantially central portion in the height direction (vertical direction in FIG. 3) of the frame member 5, that is, the filter member 6 is filtered at a substantially central portion in the thickness direction of the frame member 5. The member 6 is fixed.
　フィルタ部材６は、図４に示すように、多数の小孔を有するパンチングメタルによって形成されており、枠部材５の曲率半径とほぼ等しい曲率半径で湾曲している。このようなフィルタ部材６は、枠部材５の内側に固定されており、枠部材５を射出成形する際に、樹脂モールドによって当該枠部材５と一体成形されている。なお、フィルタ部材６を枠部材５に接着剤を使用して接着してもよい。 As shown in FIG. 4, the filter member 6 is formed of a punching metal having a large number of small holes, and is curved with a curvature radius substantially equal to the curvature radius of the frame member 5. Such a filter member 6 is fixed inside the frame member 5, and is integrally formed with the frame member 5 by a resin mold when the frame member 5 is injection-molded. The filter member 6 may be bonded to the frame member 5 using an adhesive.
　固定部７は、図４に示すように、金属製の薄板によって、フィルタ部材６と一体的に形成されている。固定部７は、フィルタ部材６の長手方向中央部に設けられるとともに、フィルタ部材６の幅方向において一対設けられている。また、固定部７はフィルタ部材６から垂下するようにして設けられており、その先端部（下端部）に、係止部７ａが形成されている。係止部７ａは固定部７の下端部をフィルタ部材６の幅方向外側に向けて折曲して形成されたものであり、後述するポート部３に形成された被係止部７ｂに係止されるようになっている。 The fixing part 7 is integrally formed with the filter member 6 by a thin metal plate as shown in FIG. A pair of fixing portions 7 are provided in the central portion of the filter member 6 in the longitudinal direction, and a pair of fixing portions 7 are provided in the width direction of the filter member 6. The fixing portion 7 is provided so as to hang down from the filter member 6, and a locking portion 7 a is formed at the tip (lower end) thereof. The locking portion 7a is formed by bending the lower end portion of the fixed portion 7 toward the outer side in the width direction of the filter member 6, and is locked to the locked portion 7b formed in the port portion 3 described later. It has come to be.
　このような構成の制御弁用フィルタ１が取り付けられる制御弁本体２の３つのポート部３の開口縁部には、図５に示すように、枠格納部１０が設けられている。この枠格納部１０は、制御弁用フィルタ１の枠部材５が格納される部分であり、制御弁本体２の外周面より内側に凹んでいる。
　また、枠格納部１０には、制御弁本体２の軸方向（図５において左右方向）と直交する第１シール面１０ａと、この第１シール面１０ａと直交する第２シール面１０ｂと、第３シール面１０ｃ（図２参照）とが設けられている。 As shown in FIG. 5, a frame storage portion 10 is provided at the opening edge of the three port portions 3 of the control valve main body 2 to which the control valve filter 1 having such a configuration is attached. The frame storage portion 10 is a portion in which the frame member 5 of the control valve filter 1 is stored, and is recessed inward from the outer peripheral surface of the control valve main body 2.
Further, the frame storage portion 10 includes a first seal surface 10a orthogonal to the axial direction of the control valve body 2 (left-right direction in FIG. 5), a second seal surface 10b orthogonal to the first seal surface 10a, 3 sealing surfaces 10c (see FIG. 2) are provided.
　第１シール面１０ａは制御弁本体２の周方向に沿って形成された平坦面であり、制御弁本体２の外周面と直交している。また、第１シール面１０ａは、１つの枠格納部１０において制御弁本体２の軸方向に平行離間して一対設けられており、一対の第１シール面１０ａ，１０ａは第３シール面１０ｃ（図２参照）によって滑らかに連続している。この第３シール面１０ｃは円弧状の曲面であり、制御弁本体２の外周面と直交している。
　また、第２シール面１０ｂは、第１シール面１０ａの内縁から制御弁本体２の軸方向に突出して形成された突出部１１の外周側に形成された円弧状の曲面であり、１つの枠格納部１０において制御弁本体２の軸方向に離間して一対設けられている。 The first seal surface 10 a is a flat surface formed along the circumferential direction of the control valve main body 2, and is orthogonal to the outer peripheral surface of the control valve main body 2. In addition, a pair of first seal surfaces 10a are provided in one frame storage portion 10 so as to be spaced apart from each other in the axial direction of the control valve body 2, and the pair of first seal surfaces 10a, 10a is a third seal surface 10c ( (See FIG. 2). The third seal surface 10 c is an arcuate curved surface, and is orthogonal to the outer peripheral surface of the control valve body 2.
The second seal surface 10b is an arcuate curved surface formed on the outer peripheral side of the protruding portion 11 formed to protrude in the axial direction of the control valve body 2 from the inner edge of the first seal surface 10a. A pair of the storage unit 10 is provided apart from each other in the axial direction of the control valve body 2.
　また、突出部１１の先端面には、制御弁本体２の内側に向かうほど（図５において下方に向かうほど）、ポート部３の幅方向（図５において左右方向）の中央側に傾斜する傾斜面１１ａが設けられている。対向する傾斜面１１ａ，１１ａ間の最大離間距離、つまり傾斜面１１ａ，１１ａの枠格納部１０側の傾斜面１１ａ，１１ａ間の距離は、制御弁用フィルタ１の一対の固定部７の先端部にある係止部７ａ，７ａ間の距離とほぼ等しいか若干大きく設定されている。より具体的には、枠格納部１０側の傾斜面１１ａ，１１ａの端間、つまり傾斜面１１ａ，１１ａと第２シール面１０ｂ，１０ｂの稜線部間の距離は、係止部７ａ，７ａの先端間の距離とほぼ等しいから若干大きく設定されている。これによって、係止部７ａ，７ａの先端は、制御弁用フィルタ１をポート部３に制御弁本体２の径方向外側から挿入することによって、傾斜面１１ａ，１１ａの端に当たって、当該傾斜面１１ａ，１１ａに沿って滑るようにして内側に挿入されるようになっている。
　また、傾斜面１１ａに連続して、制御弁本体２の径方向と平行な平行面１１ｂが設けられており、対向する平行面１１ｂ，１１ｂ間の距離は係止部７ａ，７ａ間の距離より小さく設定されている。
　そして、この平行面１１ｂと直交する突出部１１の内周面が、固定部７の係止部７ａが係止される被係止部７ｂとなっている。
　したがって、固定部７をポート部３に挿入すると、係止部７ａ，７ａの先端が傾斜面１１ａ，１１ａに当たりながら滑って、互いに近付くように、固定部７，７が弾性的に撓み、係止部７ａ，７ａの先端が平行面１１ｂ，１１ｂを過ぎた際に、固定部７，７の弾性復帰力によって、係止部７ａ，７ａが互いに離間するように開いて、被係止部７ｂ，７ｂに係止するようになっている。
　また、被係止部７ｂは円弧状の曲面で形成されているので、係止部７ａもこの曲面に密着するような円弧状に形成されている。 Further, the slope of the protrusion 11 is inclined toward the center side in the width direction (left and right direction in FIG. 5) of the port portion 3 as it goes inward of the control valve body 2 (downward in FIG. 5). A surface 11a is provided. The maximum distance between the opposing inclined surfaces 11a and 11a, that is, the distance between the inclined surfaces 11a and 11a on the frame storage unit 10 side of the inclined surfaces 11a and 11a is the tip of the pair of fixed portions 7 of the control valve filter 1 Is set to be approximately equal to or slightly larger than the distance between the locking portions 7a and 7a. More specifically, the distance between the ends of the inclined surfaces 11a and 11a on the frame storage unit 10 side, that is, the distance between the inclined surfaces 11a and 11a and the ridge line portions of the second seal surfaces 10b and 10b is the distance between the locking portions 7a and 7a. It is set slightly larger because it is almost equal to the distance between the tips. As a result, the tips of the locking portions 7a and 7a come into contact with the ends of the inclined surfaces 11a and 11a by inserting the control valve filter 1 into the port portion 3 from the radially outer side of the control valve main body 2, and the inclined surfaces 11a. , 11a so as to slide along the inner side.
Moreover, the parallel surface 11b parallel to the radial direction of the control valve main body 2 is provided continuously from the inclined surface 11a, and the distance between the parallel surfaces 11b and 11b facing each other is greater than the distance between the locking portions 7a and 7a. It is set small.
And the inner peripheral surface of the protrusion part 11 orthogonal to this parallel surface 11b becomes the to-be-latched part 7b by which the latching | locking part 7a of the fixing | fixed part 7 is latched.
Therefore, when the fixing portion 7 is inserted into the port portion 3, the fixing portions 7 and 7 are elastically bent and locked so that the tips of the locking portions 7a and 7a slide while approaching the inclined surfaces 11a and 11a and approach each other. When the tips of the portions 7a and 7a pass through the parallel surfaces 11b and 11b, the locking portions 7a and 7a are opened apart from each other by the elastic restoring force of the fixing portions 7 and 7, and the locked portions 7b and 7b 7b.
Moreover, since the to-be-latched part 7b is formed with the circular-arc-shaped curved surface, the locking part 7a is also formed in the circular arc shape which closely_contact | adheres to this curved surface.
　このような構成の枠格納部１０を開口縁部に有するポート部３には、図６に示すように、制御弁用フィルタ１が取り付けられている。
　すなわち、枠格納部１０に制御弁用フィルタ１の枠部材５が嵌め込まれており、当該枠格納部１０に嵌め込まれた制御弁用フィルタ１は、制御弁本体２の外周面より内側に配置されている。具体的には、制御弁用フィルタ１の枠部材５は、制御弁本体２の外周面より所定の段差をもって内側に配置されており、フィルタ部材６はさらに内側に配置されている。
　また、枠格納部１０に制御弁用フィルタ１の枠部材５が嵌め込まれた状態において、枠格納部１０の第１シール面１０ａ、第２シール面１０ｂ、第３シール面１０ｃ（図２参照）に、枠部材５のアーチ部５ａの外側面、アーチ部５ａの下面、連結部５ｂの外周面が密接している。
　また、制御弁用フィルタ１の固定部７は、ポート部３に差し込まれ、前記突出部１１の内周面の被係止部７ｂに、固定部７の先端部の係止部７ａが係止している。
　これによって、制御弁用フィルタ１は、ポート部３からの脱落が阻止されている。 As shown in FIG. 6, the control valve filter 1 is attached to the port portion 3 having the frame storage portion 10 having such a configuration at the opening edge portion.
That is, the frame member 5 of the control valve filter 1 is fitted into the frame storage unit 10, and the control valve filter 1 fitted into the frame storage unit 10 is disposed on the inner side of the outer peripheral surface of the control valve body 2. ing. Specifically, the frame member 5 of the control valve filter 1 is disposed on the inner side with a predetermined step from the outer peripheral surface of the control valve main body 2, and the filter member 6 is further disposed on the inner side.
Further, in a state where the frame member 5 of the control valve filter 1 is fitted in the frame storage unit 10, the first seal surface 10a, the second seal surface 10b, and the third seal surface 10c of the frame storage unit 10 (see FIG. 2). Further, the outer surface of the arch portion 5a of the frame member 5, the lower surface of the arch portion 5a, and the outer peripheral surface of the connecting portion 5b are in close contact.
The fixing portion 7 of the control valve filter 1 is inserted into the port portion 3, and the locking portion 7 a at the tip of the fixing portion 7 is locked to the locked portion 7 b on the inner peripheral surface of the protruding portion 11. is doing.
As a result, the control valve filter 1 is prevented from falling off the port portion 3.
　制御弁用フィルタ１をポート部３に取り付ける場合、図７に示すように、制御弁用フィルタ１を制御弁本体２の径方向外側からポート部３に押し込んで行く。すると、制御弁用フィルタ１の枠部材５が枠格納部１０に嵌め込まれるとともに、枠格納部１０の第１シール面１０ａ、第２シール面１０ｂ、第３シール面１０ｃに、枠部材５のアーチ部５ａの外側面、アーチ部５ａの下面、連結部５ｂの外周面が密接する。
　また、このようにして制御弁用フィルタ１をポート部３に押し込んで行くことにより、固定部７がポート部３に挿入され、係止部７ａ，７ａの先端が傾斜面１１ａ，１１ａに当たりながら滑って互いに近付くように、固定部７，７が弾性的に撓み、係止部７ａ，７ａの先端が平行面１１ｂ，１１ｂを過ぎた際に、固定部７，７の弾性復帰力によって、係止部７ａ，７ａが互いに離間するように開いて、被係止部７ｂ，７ｂに係止する。
　これによって、制御弁用フィルタ１がポート部３に取り付けられるとともに、係止部７ａによってポート部３からの脱落が阻止される。 When the control valve filter 1 is attached to the port portion 3, the control valve filter 1 is pushed into the port portion 3 from the outside in the radial direction of the control valve body 2 as shown in FIG. 7. Then, the frame member 5 of the control valve filter 1 is fitted into the frame storage portion 10, and the arch of the frame member 5 is placed on the first seal surface 10 a, the second seal surface 10 b, and the third seal surface 10 c of the frame storage portion 10. The outer surface of the portion 5a, the lower surface of the arch portion 5a, and the outer peripheral surface of the connecting portion 5b are in close contact.
Further, by pushing the control valve filter 1 into the port portion 3 in this way, the fixing portion 7 is inserted into the port portion 3, and the tips of the locking portions 7a and 7a slide while hitting the inclined surfaces 11a and 11a. So that the fixing portions 7 and 7 are elastically bent so that the ends of the locking portions 7a and 7a pass through the parallel surfaces 11b and 11b. The parts 7a and 7a are opened so as to be separated from each other, and locked to the locked parts 7b and 7b.
As a result, the control valve filter 1 is attached to the port portion 3, and the locking portion 7a prevents the dropout from the port portion 3.
　このようにして制御弁用フィルタ１が取り付けられた制御弁Ａは、図８に示すように、エンジン側の機器１５に形成されている円筒状の取付穴１５ａに挿入される。
　このような機器１５の取付穴１５ａに、制御弁Ａを挿入した構造において、取付穴１５ａの内周面１５ｂと制御弁用フィルタ１との間に油路となる隙間Ｓが設けられる。したがって、この隙間Ｓ全体を油路として使用でき、フィルタ部材６の全面で油を通過させることができるため、制御弁用フィルタ１の設置による流量低下を低減できる。 The control valve A to which the control valve filter 1 is attached in this manner is inserted into a cylindrical attachment hole 15a formed in the engine-side device 15 as shown in FIG.
In such a structure in which the control valve A is inserted into the mounting hole 15a of the device 15, a gap S serving as an oil passage is provided between the inner peripheral surface 15b of the mounting hole 15a and the control valve filter 1. Therefore, the entire gap S can be used as an oil passage, and oil can be passed through the entire surface of the filter member 6, so that a decrease in flow rate due to the installation of the control valve filter 1 can be reduced.
　以上のように本実施の形態によれば、制御弁用フィルタ１の枠部材５を枠格納部１０に嵌め込むことによって、固定部７がポート部３に固定されるので、従来と異なり枠部材５を拡径する必要がない。よって、この拡径に起因する枠部材５の破損を防止できる。
　また、凹部と凸部とのスナップフィットによって固定するものでないので、これに起因する変形や破損が生じることもない。
　さらに、固定部７がポート部３に固定されることで、制御弁用フィルタ１がポート部３に取り付けられるので、部品点数が増えたり、製造に手間がかかることがない。
　また、枠部材５をポート部３の開口縁部に設けられた枠格納部１０に嵌め込むので、ポート部３の流路断面積を減らすことなく、制御弁用フィルタ１を取り付けることができ、よって、油の流量の低下率を低減できる。 As described above, according to the present embodiment, the fixing member 7 is fixed to the port portion 3 by fitting the frame member 5 of the control valve filter 1 into the frame storage portion 10. There is no need to increase the diameter of 5. Therefore, breakage of the frame member 5 due to this diameter expansion can be prevented.
Moreover, since it does not fix by the snap fit of a recessed part and a convex part, the deformation | transformation and damage resulting from this do not arise.
Furthermore, since the fixing part 7 is fixed to the port part 3, the control valve filter 1 is attached to the port part 3, so that the number of parts is not increased and the manufacturing is not troublesome.
Further, since the frame member 5 is fitted into the frame storage portion 10 provided at the opening edge portion of the port portion 3, the control valve filter 1 can be attached without reducing the flow path cross-sectional area of the port portion 3, Therefore, the rate of decrease in the oil flow rate can be reduced.
　また、固定部７が金属製の薄板によって形成されているので、樹脂等によって形成されているものに比して、機械的強度が強く、破損の虞がない。
　また、固定部７が金属製の薄板によって形成されているので、この固定部７によるポート部３の流路断面積の低下率が低くなり、流量低下率を低減できる。
　さらに、固定部７は、ポート部３に形成された被係止部７ｂに係止される係止部７ａを有するので、固定部７を容易かつ確実にポート部３に固定できるとともに、制御弁用フィルタ１のポート部３からの脱落を阻止できる。 Further, since the fixing portion 7 is formed of a thin metal plate, the mechanical strength is higher than that formed of resin or the like, and there is no risk of breakage.
Moreover, since the fixing | fixed part 7 is formed with the metal thin plate, the decreasing rate of the flow-path cross-sectional area of the port part 3 by this fixing | fixed part 7 becomes low, and can reduce a flow rate decreasing rate.
Furthermore, since the fixing portion 7 has a locking portion 7a that is locked to the locked portion 7b formed in the port portion 3, the fixing portion 7 can be easily and reliably fixed to the port portion 3, and the control valve The filter 1 can be prevented from falling off from the port portion 3.
　また、制御弁本体２の枠格納部１０に制御弁用フィルタ１の枠部材５が嵌め込まれるとともに、固定部７がポート部３に固定されているので、制御弁用フィルタ１を制御弁本体２に強固に取り付けることができるとともに、ポート部３からの制御弁フィルタ１の脱落を阻止できる。
　また、枠格納部１０の第１シール面１０ａ、第２シール面１０ｂ、第３シール面１０ｃに、枠部材５のアーチ部５ａの外側面、アーチ部５ａの下面、連結部５ｂの外周面が密接しているので、枠格納部１０と枠部材５との間からの異物侵入を抑えることができる。
　また、油がポート部３を通って制御弁本体２に入る場合、油圧によって、枠部材５が枠格納部１０に押し付けられるので、シール面（第１シール面１０ａ、第２シール面１０ｂ、第３シール面１０ｃ）でのシール性を高めることができる。
　また、機器１５の取付穴１５ａの内周面１５ｂと、制御弁用フィルタ１との間に油路となる隙間Ｓが設けられているので、この隙間全体を油路として使用でき、よって、流量低下を低減できる。 In addition, since the frame member 5 of the control valve filter 1 is fitted into the frame storage portion 10 of the control valve main body 2 and the fixing portion 7 is fixed to the port portion 3, the control valve filter 1 is connected to the control valve main body 2. The control valve filter 1 can be prevented from falling off from the port portion 3.
Further, the first seal surface 10a, the second seal surface 10b, and the third seal surface 10c of the frame storage unit 10 are provided with the outer surface of the arch portion 5a of the frame member 5, the lower surface of the arch portion 5a, and the outer peripheral surface of the connecting portion 5b. Since they are in close contact, entry of foreign matter from between the frame storage unit 10 and the frame member 5 can be suppressed.
Further, when oil enters the control valve main body 2 through the port portion 3, the frame member 5 is pressed against the frame storage portion 10 by hydraulic pressure, so that the seal surfaces (first seal surface 10a, second seal surface 10b, second The sealing performance at the three sealing surfaces 10c) can be improved.
In addition, since a clearance S serving as an oil passage is provided between the inner peripheral surface 15b of the mounting hole 15a of the device 15 and the control valve filter 1, the entire clearance can be used as an oil passage. Reduction can be reduced.
　また、制御弁本体２のポート部３に制御弁用フィルタ１を取り付けるようにしたので、当該制御弁用フィルタ１を本実施の形態における制御弁本体２より、大径の制御弁本体に取り付けることが可能となる。例えば、本実施の形態の制御弁本体２の外径が１８φである場合、外径が２０φや２２φの制御弁本体の外周部に外径が１８φの制御弁本体２におけるポート部３と同等形状のポート部を設けることによって、外径が大きな制御弁本体に制御弁用フィルタ１を取り付けることが可能となる。
　また、制御弁用フィルタ１のフィルタ部材６がパンチングメタルで形成されているので、濾過機能を果たす多数の小孔の穴径を自在に設定できる。つまり、制御弁用フィルタ１は、樹脂モールドによってパンチングメタルと枠部材５とを一体成形することによって形成されているので、この樹脂モールドに使用される同じ曲げ型によって、所望の穴径の小孔を有するパンチングメタルと枠部材５とを一体成形することによって、必要流量に応じた穴径を設定することができる。 Further, since the control valve filter 1 is attached to the port portion 3 of the control valve main body 2, the control valve filter 1 is attached to the control valve main body having a larger diameter than the control valve main body 2 in the present embodiment. Is possible. For example, when the outer diameter of the control valve body 2 of the present embodiment is 18φ, the outer peripheral portion of the control valve body having an outer diameter of 20φ or 22φ has the same shape as the port portion 3 in the control valve body 2 having an outer diameter of 18φ. By providing this port part, it becomes possible to attach the control valve filter 1 to the control valve body having a large outer diameter.
Further, since the filter member 6 of the control valve filter 1 is formed of punching metal, the diameters of a large number of small holes that fulfill the filtering function can be freely set. That is, since the control valve filter 1 is formed by integrally molding the punching metal and the frame member 5 with a resin mold, a small hole having a desired hole diameter is formed by the same bending mold used for the resin mold. The hole diameter corresponding to the required flow rate can be set by integrally forming the punching metal having the shape and the frame member 5.
　Ａ　制御弁
　１　制御弁用フィルタ
　２　制御弁本体
　３　ポート部
　５　枠部材
　６　フィルタ部材
　７　固定部
　７ａ　係止部
　７ｂ　被係止部
　１０　枠格納部 A control valve 1 control valve filter 2 control valve body 3 port part 5 frame member 6 filter member 7 fixing part 7a locking part 7b locked part 10 frame storage part

Claims (5)

  1. 　円筒状の制御弁本体の外周部に形成され、油を通過させるポート部に取り付けられる制御弁用フィルタであって、
    　前記ポート部の開口縁部に設けられた枠格納部に嵌め込まれる枠部材と、
    　前記枠部材に設けられた濾過機能を有するフィルタ部材と、
    　前記フィルタ部材に一体的に形成され、前記枠部材を前記枠格納部に嵌め込むことによって、前記ポート部に固定される固定部とを備えたことを特徴とする制御弁用フィルタ。     A control valve filter formed on the outer periphery of a cylindrical control valve body and attached to a port portion through which oil passes,
    A frame member fitted into a frame storage portion provided at an opening edge of the port portion;
    A filter member having a filtration function provided in the frame member;
    A control valve filter, comprising: a fixed portion that is integrally formed with the filter member and is fixed to the port portion by fitting the frame member into the frame storage portion.
  2. 　前記固定部は金属製の薄板によって形成されていることを特徴とする請求項１に記載の制御弁用フィルタ。 2. The control valve filter according to claim 1, wherein the fixed portion is formed of a thin metal plate.
  3. 　前記固定部は、前記ポート部に形成された被係止部に係止される係止部を有することを特徴とする請求項１または２に記載の制御弁用フィルタ。 The control valve filter according to claim 1 or 2, wherein the fixing portion includes a locking portion that is locked to a locked portion formed in the port portion.
  4. 　油を通過させる複数のポート部が外周部に形成された円筒状の制御弁本体と、
    　前記複数のポート部を選択的に連通させるように前記制御弁本体内で摺動するスプール弁体と、
    　前記ポート部の開口縁部に設けられた枠格納部に嵌め込まれる枠部材と、前記枠部材に設けられた濾過機能を有するフィルタ部材と、前記フィルタ部材に一体的に形成され、前記枠部材を前記枠格納部に嵌め込むことによって、前記ポート部に固定される固定部とを含む制御弁用フィルタと、を備えることを特徴とする制御弁。     A cylindrical control valve body having a plurality of port portions through which oil passes formed on the outer periphery,
    A spool valve body that slides within the control valve body to selectively communicate the plurality of port portions;
    A frame member fitted in a frame storage portion provided at an opening edge of the port portion; a filter member having a filtering function provided in the frame member; and the filter member formed integrally with the filter member. A control valve comprising: a control valve filter including a fixed portion fixed to the port portion by being fitted into the frame storage portion.
  5. 　前記枠格納部に設けられたシール面に前記枠部材が密接されており、
    　前記枠格納部は前記制御弁本体の外周面より凹んでおり、
    　前記枠格納部に前記枠部材が嵌め込まれた前記制御弁用フィルタは、前記制御弁本体の外周面より内側に配置されていることを特徴とする請求項４に記載の制御弁。     The frame member is in intimate contact with a seal surface provided in the frame storage portion;
    The frame storage part is recessed from the outer peripheral surface of the control valve body,
    The control valve according to claim 4, wherein the control valve filter in which the frame member is fitted in the frame storage portion is disposed on the inner side of the outer peripheral surface of the control valve main body.
PCT/JP2015/074404 2014-09-25 2015-08-28 Control valve filter and control valve WO2016047371A1 (en)

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WO2023166962A1 (en) * 2022-03-04 2023-09-07 日立Astemo株式会社 Control valve and valve timing control device for internal combustion engine to which control valve is applied

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105247A (en) * 2004-10-04 2006-04-20 Aisin Aw Co Ltd Strainer, and valve gear
JP2008039141A (en) * 2006-08-09 2008-02-21 Mitsubishi Electric Corp Control valve and oil control device
US20080223778A1 (en) * 2005-03-16 2008-09-18 Aisin Aw Co., Ltd. Strainer and Control Valve

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4916233B2 (en) * 2006-06-26 2012-04-11 株式会社ミクニ Engine cooling system
DE102008013270A1 (en) * 2008-03-08 2009-09-10 Robert Bosch Gmbh Screen filter and cartridge valve with sieve filter
CA2845777C (en) * 2011-09-08 2016-06-07 Kabushiki Kaisha Saginomiya Seisakusho Filter device, control valve comprising the filter device, and fuel cell system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105247A (en) * 2004-10-04 2006-04-20 Aisin Aw Co Ltd Strainer, and valve gear
US20080223778A1 (en) * 2005-03-16 2008-09-18 Aisin Aw Co., Ltd. Strainer and Control Valve
JP2008039141A (en) * 2006-08-09 2008-02-21 Mitsubishi Electric Corp Control valve and oil control device

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