WO2012111389A1 - 弁開閉時期制御装置 - Google Patents
弁開閉時期制御装置 Download PDFInfo
- Publication number
- WO2012111389A1 WO2012111389A1 PCT/JP2012/051357 JP2012051357W WO2012111389A1 WO 2012111389 A1 WO2012111389 A1 WO 2012111389A1 JP 2012051357 W JP2012051357 W JP 2012051357W WO 2012111389 A1 WO2012111389 A1 WO 2012111389A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- driven
- rotating body
- partition
- timing control
- radial direction
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/356—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear making the angular relationship oscillate, e.g. non-homokinetic drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34483—Phaser return springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L2001/34486—Location and number of the means for changing the angular relationship
Definitions
- the present invention is provided on a drive-side rotator that rotates synchronously with a crankshaft, a driven-side rotator that is arranged coaxially with the drive-side rotator, and that rotates synchronously with respect to a camshaft, and a driven-side rotator.
- the present invention relates to a valve opening / closing timing control device including a plurality of partition portions that partition a fluid pressure chamber formed by a driving side rotating body and a driven side rotating body into a retard chamber and an advance chamber.
- the contact pressure between the camshaft and the driven-side rotating body is small, so that the fastening pressure applied to the driven-side rotating body increases.
- an aluminum material having a low hardness is often used as the material of the driven side rotating body, so that the driven side rotating body is easily deformed.
- a connecting member is interposed between the driven rotor and the camshaft.
- each part manufactured in a different parts factory is transported to the assembly factory.
- the driven rotor, the drive-side rotor, and the connecting member are manufactured in the same parts factory and are transported in an assembled state.
- the connecting member is press-fitted into a recess formed on one side of the driven-side rotator, and is conveyed in an integrated state. Such integration is preferable because the labor of conveyance is reduced and the connecting operation of the camshaft is facilitated.
- Japanese Patent Application Laid-Open No. 2006-183590 discloses a technique of forming a recess for press-fitting a connecting member and forming a recess for press-fitting a bush on the back side (see Patent Document 1). As a result, the amount of diameter expansion deformation on both surfaces is balanced, and out-of-plane deformation is prevented from occurring in the driven-side rotating body.
- An object of the present invention is to provide a valve opening / closing timing control device capable of simplifying the work process and the number of parts while suppressing the bending of the driven side rotating body.
- the first characteristic configuration of the valve opening / closing timing control device of the present invention is a drive-side rotating body that rotates synchronously with respect to a crankshaft, and a driven that is arranged coaxially with the drive-side rotating body and rotates synchronously with respect to a camshaft.
- a plurality of partitioning portions provided on the side rotating body and the driven side rotating body and partitioning a fluid pressure chamber formed by the driving side rotating body and the driven side rotating body into a retard chamber and an advance chamber;
- a connecting member that connects the driven-side rotator and the camshaft, and the connecting member includes a flange portion that is inserted into a recess formed in the driven-side rotator, and the drive-side rotator.
- the outer diameter of the flange portion provided in the connecting member is set to be larger than the outer diameter of the shaft portion of the connecting member, and the flange portion is disposed between the driven side rotating body and the wall member.
- a flange part is comprised so that it may be pinched
- the flange portion has a plurality of fitting portions that are fitted to the inner peripheral surface of the concave portion at intervals along the rotation direction, and the plurality of fitting portions.
- the center line which faces the radial direction of at least one fitting part is the point which comprised so that it might not overlap with each partition part in radial direction.
- the driven-side rotator includes a cylindrical portion formed on the side of the rotation center and a plurality of partition portions formed intermittently along the circumferential direction on the outer peripheral portion of the cylindrical portion.
- the center line of a specific fitting part is in a position overlapping with any partition part in the radial direction.
- the portion of the driven side rotating body that comes into contact with the fitting portion is deformed in the radially outward direction.
- the partition provided at the position also moves in the diameter increasing direction.
- the deformation generated in the partitioning portion is a tilting deformation toward the side opposite to the concave portion. Since the partition portion has a predetermined length dimension in the radial direction, the displacement amount of the end portion of the partition portion is large.
- a plurality of fitting portions are formed in the connecting member, and at least one of the fitting portions is in the radial direction on the partition portion of the driven side rotating body. It is configured not to overlap.
- the third characteristic configuration of the present invention is that the center line of all the fitting portions in the radial direction is configured not to overlap each partition portion in the radial direction.
- all of the fitting portions perform relative movement between the driving side rotating body and the driven side rotating body by contact with the driving side rotating body among the plurality of partitioning portions.
- the contact portion to be controlled and the partitioning portion other than the partitioning portion provided with at least one of a lock mechanism that locks the driving-side rotating body and the driven-side rotating body at a predetermined relative rotational phase are configured not to overlap in the radial direction. It is in the point.
- At least one of the partitions of the driven-side rotator includes a lock mechanism that sets the relative phase between the driven-side rotator and the drive-side rotator at a predetermined position, and the driven-side rotator is at the most advanced angle side. Or, when rotating to the most retarded angle side, an abutting portion that abuts on the driving side rotating body and restricts further relative rotation is provided.
- the lock mechanism is provided, the circumferential dimension of the partition portion is larger than the other partition portions because the lock pin needs to be provided. Further, when the contact portion is formed, since the partition portion needs to withstand an impact at the time of contact, the circumferential dimension is also large.
- a highly rigid partition portion provided with a lock mechanism or the like is referred to as a high-rigidity partition portion, and other general partition portions having low rigidity are referred to as low-rigidity partition portions.
- the fitting portion is configured not to coincide with the low-rigidity partition portion.
- the out-of-plane deformation that occurs when the fitting part matches the low rigidity partition part matches the high rigidity partition part. It is larger than the out-of-plane deformation that occurs. Therefore, as in the present configuration, the out-of-plane deformation that occurs can be kept small by not providing the fitting portion corresponding to the low-rigidity partition portion.
- At least one of the plurality of fitting portions is configured to overlap in a radial direction with a partition portion including at least one of the contact portion and the lock mechanism. In the point.
- the partition portion related to the coincidence is a high-rigidity partition portion.
- a sixth characteristic configuration of the present invention is that a sprocket to which power from the crankshaft is transmitted is provided on the same plane as the wall member.
- a wall member of the driving side rotating body is pivotally supported on the shaft portion of the connecting member. Therefore, the rotational force acting on the sprocket is transmitted to the side surface of the connecting member via the wall member.
- the position of the plane on which the sprocket is formed is away from the position of the plane on which the wall member exists, an external force that tilts the driving side rotating body from the sprocket to the driving side rotating body with respect to the rotation axis.
- inconveniences such as an increase in the frictional force between the driven-side rotator and the driving-side rotator, and a loss of the shaft support function of the wall member borne by the shaft portion of the connecting member occur.
- a seventh characteristic configuration of the present invention is that a guide portion capable of guiding the driven side rotating body and the connecting member to be positioned at a predetermined relative rotational phase is provided.
- the driven-side rotating body and the connecting member are guided and positioned at a predetermined relative rotational phase by the guide portion. Therefore, the driven side rotating body and the connecting member can be easily positioned.
- FIG. 2 is a cross-sectional view taken along arrow II-II in FIG.
- FIG. 4 is a cross-sectional view taken along arrow IV-IV in FIG. 3.
- the valve opening / closing timing control device is made of a steel housing 1 (an example of a drive side rotating body) that rotates synchronously with an engine crankshaft C, and an aluminum product that rotates synchronously with an engine camshaft 2. And an internal rotor 3 (an example of a driven rotor).
- the housing 1 and the inner rotor 3 are disposed on the same axis X.
- the housing 1 includes a front plate 4 on the front side, that is, opposite to the camshaft 2, a wall member 5 on the rear side, that is, the camshaft 2 side, the front plate 4, and the wall member 5. And an external rotor 6 interposed therebetween.
- the front plate 4, the wall member 5, and the external rotor 6 are fixed by screws.
- a sprocket 5 a to which power from the crankshaft C is transmitted is provided on the outer peripheral portion of the wall member 5.
- the front plate 4, the wall member 5, and the external rotor 6 are not limited to those fixed by screws, and the housing 1 may be integrally formed.
- a sprocket may be formed on the outer peripheral portion of the external rotor 6.
- crankshaft C When the crankshaft C is rotationally driven, a rotational driving force is transmitted to the wall member 5 via a power transmission member (not shown) such as a chain, and the external rotor 6 rotates in the rotational direction S (see FIG. 2). As the external rotor 6 is driven to rotate, the internal rotor 3 is rotationally driven in the rotational direction S via the oil inside the advance chamber 11 and the retard chamber 12, and the camshaft 2 rotates and is provided on the camshaft 2.
- a cam (not shown) activates the intake valve of the engine.
- a plurality of first partition portions 8 projecting radially inward are formed on the inner peripheral portion of the outer rotor 6.
- the first partition portions 8 are arranged along the rotation direction S with a space therebetween.
- a plurality of second partition portions 9 protruding outward in the radial direction are formed on the outer peripheral portion of the inner rotor 3.
- the second partition portions 9 are arranged at intervals along the rotation direction S in the same manner as the first partition portion 8.
- a space between the outer rotor 6 and the inner rotor 3 is partitioned into a plurality of fluid pressure chambers by the first partitioning portion 8. These fluid pressure chambers are partitioned into an advance chamber 11 and a retard chamber 12 by the second partition 9.
- seal members SE are provided at positions facing the inner peripheral surface of the outer rotor 6.
- the internal rotor 3, the connecting member 22, and the camshaft 2 are provided with an advance chamber 11 and a supply / discharge mechanism KK for supplying and discharging oil and shutting off the supply / discharge.
- a lock passage 15 that connects the discharge mechanism KK is formed.
- the supply / discharge mechanism KK includes an oil pan, an oil motor, a fluid control valve OCV that supplies and discharges engine oil to and from the advance passage 13 and the retard passage 14, and a lock passage 15.
- a fluid switching valve OSV for supplying and discharging engine oil and shutting off the supply and discharge
- an electronic control unit ECU for controlling the operation of the fluid control valve OCV and the fluid switching valve OSV.
- a first recess 23 that accommodates the head of the bolt 21 is formed on the front side surface of the inner rotor 3.
- a second recess 24 into which the flange portion 26 of the connecting member 22 is inserted is formed on the rear side surface.
- a through hole 25 through which the bolt 21 is inserted is formed between the first recess 23 and the second recess 24.
- the 2nd recessed part 24 is good also as a structure by which the flange part 26 is press-fit here.
- the outer diameter of the flange portion 26 formed on the front side of the connecting member 22 is set larger than the outer diameter of the shaft portion 29 formed on the rear side.
- the rear side surface of the inner rotor 3 and the rear side surface of the flange portion 26 are flush with each other.
- the wall member 5 is fixed to the outer rotor 6 while the shaft portion 29 is inserted into the round hole 30 of the wall member 5
- the rear side surface of the inner rotor 3 and the rear side surface of the flange portion 26 are round holes of the wall member 5. It is comprised so that it may closely_contact
- the shaft portion 29 of the connecting member 22 has a function of supporting the wall member 5.
- a sprocket 5 a is formed on the outer peripheral edge of the wall member 5.
- the force input to the sprocket 5 a is transmitted to the shaft portion 29 of the connecting member 22 through the wall member 5.
- the external rotor 6 is inclined from the sprocket 5a to the external rotor 6 with respect to the rotation axis. External force acts.
- the front side surface and the rear side surface of the connecting member 22 are each formed with a hole portion 31 through which the bolt 21 is inserted and a concave portion 32 into which the tip portion of the camshaft 2 is inserted.
- the internal rotor 3 is formed with a front pin insertion hole 3a
- the rear end of the camshaft 2 is formed with a rear pin insertion hole 2a
- the connecting member 22 is formed with an intermediate pin insertion hole 22a.
- the clearance between the through hole 25 of the internal rotor 3 and the bolt 21, the clearance between the hole 31 of the connecting member 22 and the bolt 21, and the clearance between the insertion hole 2 c of the camshaft 2 and the bolt 21 are the advance passage 13. Function as.
- the flange portion 26 of the connection member 22 is press-fitted into the second recess 24 of the internal rotor 3 while the pin P is inserted into the pin insertion hole 3 a of the internal rotor 3 and the pin insertion hole 22 a of the connection member 22. Thereafter, the tip of the camshaft 2 is inserted into the recess 32 of the connecting member 22 while the pin P is inserted into the pin insertion hole 2 a at the tip of the camshaft 2.
- the internal rotor 3, the connecting member 22, and the tip of the camshaft 2 are positioned at a predetermined relative rotational phase, and the advance passage 13, the retard passage 14, and the lock passage 15 are formed.
- the pin P, the pin insertion hole 3a, and the pin insertion hole 22a are provided as guide portions that can be guided so that the internal rotor 3 and the connecting member 22 are positioned at a predetermined relative rotational phase.
- the internal rotor 3 and the connecting member 22 are guided and positioned at a predetermined relative rotational phase by guide portions (pins P, pin insertion holes 3a, and pin insertion holes 22a). Therefore, the internal rotor 3 and the connecting member 22 can be easily positioned.
- the plurality of fitting portions 28 are intermittently formed along the rotation direction S with respect to the inner peripheral surface of the second recess 24.
- the phase between the fitting portions 28 is 90 degrees around the rotation axis.
- a notch 27 is formed between the adjacent fitting portions 28.
- any of the fitting portions 28 can be configured so as not to overlap each second partition portion 9 in the radial direction.
- the connecting member 22 is press-fitted into the second recess 24, the corresponding portion of the inner rotor 3 undergoes some diameter expansion deformation, but this portion does not correspond to any second partition 9. That is, none of the second partition portions 9 undergoes angular deformation or the like.
- the out-of-plane deformation of the inner rotor 3 as a whole can be minimized.
- any fitted portion 41 of the inner rotor 3 is deformed to the same extent, the eccentricity of the inner rotor 3 can be prevented.
- the configuration of the present invention does not mean that all the fitting portions 28 should not overlap at all in the radial direction with respect to the respective second partition portions 9. That is, when attention is paid to the center line CL that faces all the fitting portions 28 in the radial direction, the center line CL may be configured not to overlap each second partition portion 9 in the radial direction. That is, the deformation on the inner rotor 3 side caused by the press-fitting of the fitting portion 28 is the largest on the center line CL facing the radial direction of the fitting portion 28. Therefore, by preventing this direction from overlapping the second partition 9, the out-of-plane deformation of the internal rotor 3 as a whole can be minimized.
- the fitting portions 28 overlap in the radial direction with the second partition portion 9 including the lock mechanism RK among the plurality of second partition portions 9, and other fittings.
- the joining portion 28 is configured not to overlap in the radial direction with the second partition portion 9 not provided with the lock mechanism RK.
- the second partition portion provided with the lock mechanism RK has a larger circumferential dimension of the second partition portion than the other partition portions because of the need to dispose the lock pin, and its rigidity is also large. . Therefore, hereinafter, the second partition portion including the lock mechanism RK is referred to as a high-rigidity partition portion 9a, and the other second partition portions are referred to as a low-rigidity partition portion 9b.
- the three fitting portions 28 can be arranged so as not to overlap any of the second partition portions 9, but one fitting portion 28 may overlap any of the second partition portions 9.
- the high-rigidity partition part 9a is selected as the overlapping second partition part 9. That is, since the high-rigidity partition portion 9a has high rigidity, it is not significantly affected by the press-fitting of the connecting member 22. Therefore, the out-of-plane deformation generated in the fitted portion 41 is reduced, and as a result, the total deformation amount of the inner rotor 3 is kept to a minimum.
- the fitted portion 41 into which the other three fitting portions 28 are fitted is a cylindrical portion of the inner rotor 3. Therefore, although the cylindrical portion is deformed by the press-fitting of the fitting portion 28, the deformation does not reach any of the low-rigidity partition portions 9b.
- fitting portion 28 only one fitting portion 28 overlaps the high-rigidity partition portion 9a provided with the lock mechanism RK in the radial direction.
- a plurality of fitting portions 28 may be disposed overlapping one high-rigidity partitioning portion 9a, or provided with a plurality of high-rigidity partitioning portions 9a, each corresponding to the fitting portion 28. May be. In any case, the above effect that the deformation of the inner rotor 3 is suppressed is maintained.
- the present invention is applicable to a valve opening / closing timing control device for an automobile or other internal combustion engine.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
また、本構成であれば、連結部材のフランジ部が必ずしも従動側回転体を径外方向に押し広げる必要がなく、従動側回転体に変形が生じることがない。
さらに、従動側回転体に対して拡径方向への力が加わらないため、連結部材を設けるのとは反対側に別途ブッシュを圧入する必要もない。
このように、本構成であれば、簡単な構成でありながら、従動側回転体・駆動側回転体・連結部材の組み立てが容易であり、部品点数も削減されるため、合理的な弁開閉制御装置を得ることができる。
そこで本構成のごとく、スプロケットを壁部材と同一平面上に設けることで、連結部材の軸部に作用する力の向きがカムシャフトの軸芯に直交する方向となる。この結果、壁部材を軸支する連結部材の軸部の機能が健全に発揮され、信頼性に優れた弁開閉時期制御装置を得ることができる。
以下、本発明に係る弁開閉時期制御装置を自動車用エンジンに適用した実施形態について、図1~図5を参照しつつ説明する。
図1に示すように、弁開閉時期制御装置は、エンジンのクランクシャフトCと同期回転する鋼鉄製のハウジング1(駆動側回転体の一例)と、エンジンのカムシャフト2と同期回転するアルミニウム製の内部ロータ3(従動側回転体の一例)とを備えている。ハウジング1と内部ロータ3とは同一軸芯X上に配置されている。
図1~図4に示すように、ハウジング1は、前側すなわちカムシャフト2とは反対側のフロントプレート4と、後側すなわちカムシャフト2の側の壁部材5と、フロントプレート4および壁部材5間に介装された外部ロータ6とを備えている。フロントプレート4と壁部材5と外部ロータ6とはねじ固定されている。壁部材5の外周部にクランクシャフトCからの動力が伝達されるスプロケット5aを設けてある。尚、フロントプレート4と壁部材5と外部ロータ6とは、ねじ固定するものに限られず、ハウジング1を一体形成してもよい。また、外部ロータ6の外周部にスプロケットを形成してもよい。
図1~図5に示すように、内部ロータ3および連結部材22、カムシャフト2はボルト21を用いて締結してある。ボルト21は、カムシャフト2の先端部に設けた挿通孔2cの奥側に形成した雌ねじ部2bに締結してある。これにより、内部ロータ3は連結部材22を介してカムシャフト2の先端部に一体的に組み付けられている。
また、本構成の他、組付時の都合上、仮に内部ロータ3の第2凹部24にフランジ部26を圧入する場合であっても、完成後はフランジ部26と壁部材5との当接が期待できるために、第2凹部24に対するフランジ部26の圧入程度は必要最小限の弱いもので足りる。この結果、内部ロータ3の面外変形を発生させないか小さく留めることができる。
この点、図1に示すように、スプロケット5aを壁部材5と同一平面上に設けることで、連結部材22の軸部29に作用する力の向きがカムシャフト2の軸芯に直交する方向となる。この結果、壁部材5を軸支する軸部29の機能が健全に発揮され、信頼性に優れた弁開閉時期制御装置を得ることができる。
図6および図7に示すように、ここでは、連結部材22に複数の嵌合部28が形成されている例を示す。この複数の嵌合部28は、第2凹部24の内周面に対し、回転方向Sに沿って断続的に形成してある。例えば、各嵌合部28どうしの位相は回転軸を中心にして90度である。また、隣り合う嵌合部28どうしの間には切欠部27が形成してある。
図7に示すように、例えば、何れの嵌合部28も、各第2仕切部9に径方向で重複しないように構成することができる。これにより、連結部材22を第2凹部24に圧入したとき、内部ロータ3の該当部位は幾分の拡径変形を受けるものの、この部位は何れの第2仕切部9とも対応していない。つまり、何れの第2仕切部9も角変形などを生じることが無い。この結果、内部ロータ3の全体としての面外変形を最小に留めることができる。また、内部ロータ3のうち何れの被嵌合部41も同程度に変形するため、内部ロータ3の偏心を防止することができる。
図7には、全ての嵌合部28が第2仕切部9に重複しない構成を示したが、本発明では、少なくとも一つの嵌合部28が第2仕切部9に重複しないものであればよい。当該部位においては、嵌合の影響が第2仕切部9の姿勢変化に及ばないから、内部ロータ3の変形量を最小に留めることができるからである。
図8に示すように、ここでは、一部の嵌合部28が、複数の第2仕切部9のうち、ロック機構RKを備えた第2仕切部9に径方向で重複し、他の嵌合部28がロック機構RKを備えない第2仕切部9に径方向で重複しないように構成してある。このうちロック機構RKを備えた第2仕切部は、ロックピンを配設する必要から当該第2仕切部の周方向寸法が他の仕切部に対して大きなものとなり、その剛性も大きなものとなる。よって、以降においては、ロック機構RKを備えた第2仕切部を高剛性仕切部9aと称し、その他の第2仕切部を低剛性仕切部9bと称する。
Claims (7)
- クランクシャフトに対して同期回転する駆動側回転体と、
前記駆動側回転体と同軸上に配置され、カムシャフトに対して同期回転する従動側回転体と、
前記従動側回転体に設けられ、前記駆動側回転体と前記従動側回転体とによって形成された流体圧室を遅角室と進角室とに仕切る複数の仕切部と、
前記従動側回転体と前記カムシャフトとを連結する連結部材と、を備え、
前記連結部材は、前記従動側回転体に形成された凹部に挿入されるフランジ部、および、前記駆動側回転体におけるカムシャフトの側の壁部材に形成された貫通孔に挿通される軸部を有し、
前記フランジ部の外径を前記軸部の外径よりも大きく設定すると共に、
前記フランジ部を前記従動側回転体と前記壁部材との間に配置してある弁開閉時期制御装置。 - 前記フランジ部は、前記凹部の内周面に対し、回転方向に沿って間隔を隔てて嵌合する複数の嵌合部を有すると共に、前記複数の嵌合部のうち少なくとも一つの嵌合部の径方向に向く中心線が各仕切部に径方向で重複しないように構成してある請求項1に記載の弁開閉時期制御装置。
- 全ての嵌合部の径方向に向く中心線が各仕切部に径方向で重複しないように構成してある請求項1に記載の弁開閉時期制御装置。
- 全ての嵌合部が、前記複数の仕切部のうち、前記駆動側回転体との当接によって該駆動側回転体と前記従動側回転体との相対移動を規制する当接部および前記駆動側回転体と前記従動側回転体とを所定の相対回転位相にロックするロック機構の少なくとも一方を備えた仕切部以外の仕切部に径方向で重複しないように構成してある請求項1に記載の弁開閉時期制御装置。
- 複数の嵌合部のうち少なくとも一つの嵌合部が、前記当接部および前記ロック機構の少なくとも一方を備えた仕切部に径方向で重複するように構成してある請求項4に記載の弁開閉時期制御装置。
- 前記クランクシャフトからの動力が伝達されるスプロケットを前記壁部材と同一平面上に設けてある請求項1~5のいずれか一項に記載の弁開閉時期制御装置。
- 前記従動側回転体及び前記連結部材が所定の相対回転位相に位置決めされるよう案内可能なガイド部を設けた請求項1~6のいずれか一項に記載の弁開閉時期制御装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/994,568 US8910605B2 (en) | 2011-02-18 | 2012-01-23 | Valve timing control device |
CN201280007250.7A CN103380271B (zh) | 2011-02-18 | 2012-01-23 | 阀开闭时期控制装置 |
KR1020137020507A KR101475722B1 (ko) | 2011-02-18 | 2012-01-23 | 밸브 개폐 시기 제어 장치 |
EP12746817.1A EP2677125B1 (en) | 2011-02-18 | 2012-01-23 | Valve opening/closing timing control device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011033814A JP5321926B2 (ja) | 2011-02-18 | 2011-02-18 | 弁開閉時期制御装置 |
JP2011-033814 | 2011-02-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012111389A1 true WO2012111389A1 (ja) | 2012-08-23 |
Family
ID=46672328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/051357 WO2012111389A1 (ja) | 2011-02-18 | 2012-01-23 | 弁開閉時期制御装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8910605B2 (ja) |
EP (1) | EP2677125B1 (ja) |
JP (1) | JP5321926B2 (ja) |
KR (1) | KR101475722B1 (ja) |
CN (1) | CN103380271B (ja) |
WO (1) | WO2012111389A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015045282A (ja) * | 2013-08-28 | 2015-03-12 | アイシン精機株式会社 | 弁開閉時期制御装置 |
JP6187203B2 (ja) | 2013-11-29 | 2017-08-30 | アイシン精機株式会社 | 弁開閉時期制御装置 |
JP6273801B2 (ja) | 2013-11-29 | 2018-02-07 | アイシン精機株式会社 | 弁開閉時期制御装置 |
JP6217438B2 (ja) | 2014-02-14 | 2017-10-25 | アイシン精機株式会社 | 弁開閉時期制御装置 |
CN105736083A (zh) * | 2014-12-12 | 2016-07-06 | 舍弗勒技术股份两合公司 | 凸轮轴相位调节器 |
DE102015200140B4 (de) * | 2015-01-08 | 2021-07-01 | Schaeffler Technologies AG & Co. KG | Nockenwellenversteller mit Montagehilfe sowie Verfahren zur Montage des Nockenwellenverstellers an einem nockenwellenfesten Abschnitt |
JP2017115600A (ja) | 2015-12-21 | 2017-06-29 | アイシン精機株式会社 | 弁開閉時期制御装置 |
US10240493B2 (en) | 2016-03-14 | 2019-03-26 | ECO Holding 1 GmbH | Cam phaser |
CN107191235B (zh) * | 2016-03-14 | 2019-11-08 | 伊希欧1控股有限公司 | 凸轮相位器 |
DE102016207177B3 (de) * | 2016-04-27 | 2017-10-19 | Schaeffler Technologies AG & Co. KG | Nockenwellenversteller mit einer axial gewickelten Drehfeder und einem umgeformten, federführenden und druckmitteldichten Blechfederdeckel |
CN108979775B (zh) * | 2018-08-31 | 2023-10-31 | 绵阳富临精工机械股份有限公司 | 一种前置式vvt相位器 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001055562A1 (fr) * | 2000-01-25 | 2001-08-02 | Mitsubishi Denki Kabushiki Kaisha | Dispositif de reglage du calage de distribution |
JP2006183590A (ja) | 2004-12-28 | 2006-07-13 | Denso Corp | バルブタイミング調整装置 |
JP2007278306A (ja) * | 2007-07-30 | 2007-10-25 | Hitachi Ltd | 内燃機関のバルブタイミング制御装置 |
JP2011140929A (ja) * | 2010-01-08 | 2011-07-21 | Aisin Seiki Co Ltd | 弁開閉時期制御装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200167146Y1 (ko) * | 1997-12-31 | 2000-04-01 | 정몽규 | 캠샤프트의 밸브 타이밍 조절장치 |
JP4012378B2 (ja) * | 2000-11-28 | 2007-11-21 | 株式会社日立製作所 | 内燃機関のバルブタイミング制御装置 |
JP4626819B2 (ja) * | 2006-03-29 | 2011-02-09 | アイシン精機株式会社 | 弁開閉時期制御装置 |
JP4771168B2 (ja) | 2006-12-06 | 2011-09-14 | 株式会社デンソー | バルブタイミング調整装置 |
JP2009185719A (ja) * | 2008-02-07 | 2009-08-20 | Denso Corp | バルブタイミング調整装置 |
JP4851475B2 (ja) * | 2008-02-08 | 2012-01-11 | 株式会社デンソー | バルブタイミング調整装置 |
JP4640510B2 (ja) * | 2009-01-14 | 2011-03-02 | 株式会社デンソー | バルブタイミング調整装置 |
EP2216518B1 (en) * | 2009-01-28 | 2015-09-02 | Aisin Seiki Kabushiki Kaisha | Valve timing control apparatus |
JP4725655B2 (ja) * | 2009-02-09 | 2011-07-13 | 株式会社デンソー | バルブタイミング調整装置 |
JP5516938B2 (ja) * | 2009-02-26 | 2014-06-11 | アイシン精機株式会社 | 弁開閉時期制御装置 |
WO2010128976A1 (en) * | 2009-05-04 | 2010-11-11 | Gkn Sinter Metals, Llc | Adhesive joining for powder metal components |
JP5585832B2 (ja) * | 2010-09-10 | 2014-09-10 | アイシン精機株式会社 | 弁開閉時期制御装置 |
-
2011
- 2011-02-18 JP JP2011033814A patent/JP5321926B2/ja not_active Expired - Fee Related
-
2012
- 2012-01-23 EP EP12746817.1A patent/EP2677125B1/en not_active Not-in-force
- 2012-01-23 US US13/994,568 patent/US8910605B2/en active Active
- 2012-01-23 KR KR1020137020507A patent/KR101475722B1/ko active IP Right Grant
- 2012-01-23 CN CN201280007250.7A patent/CN103380271B/zh not_active Expired - Fee Related
- 2012-01-23 WO PCT/JP2012/051357 patent/WO2012111389A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001055562A1 (fr) * | 2000-01-25 | 2001-08-02 | Mitsubishi Denki Kabushiki Kaisha | Dispositif de reglage du calage de distribution |
JP2006183590A (ja) | 2004-12-28 | 2006-07-13 | Denso Corp | バルブタイミング調整装置 |
JP2007278306A (ja) * | 2007-07-30 | 2007-10-25 | Hitachi Ltd | 内燃機関のバルブタイミング制御装置 |
JP2011140929A (ja) * | 2010-01-08 | 2011-07-21 | Aisin Seiki Co Ltd | 弁開閉時期制御装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2677125A4 |
Also Published As
Publication number | Publication date |
---|---|
EP2677125A4 (en) | 2015-02-18 |
US20130269638A1 (en) | 2013-10-17 |
JP5321926B2 (ja) | 2013-10-23 |
JP2012172559A (ja) | 2012-09-10 |
EP2677125A1 (en) | 2013-12-25 |
CN103380271B (zh) | 2015-06-24 |
KR20130116317A (ko) | 2013-10-23 |
KR101475722B1 (ko) | 2014-12-23 |
EP2677125B1 (en) | 2015-10-21 |
CN103380271A (zh) | 2013-10-30 |
US8910605B2 (en) | 2014-12-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5321926B2 (ja) | 弁開閉時期制御装置 | |
JP5321925B2 (ja) | 弁開閉時期制御装置 | |
JP2012172559A5 (ja) | ||
JP2012172558A5 (ja) | ||
JP2002129917A (ja) | 内燃機関のバルブタイミング制御装置 | |
WO2006095532A1 (ja) | 弁開閉時期制御装置 | |
US9267401B2 (en) | Valve timing controller | |
JP6558470B2 (ja) | バルブタイミング調整システム | |
JP4177197B2 (ja) | 内燃機関のバルブタイミング制御装置 | |
JP5835261B2 (ja) | バルブタイミング調整装置の製造装置及び製造方法 | |
WO2013099576A1 (ja) | 弁開閉時期制御装置及びそのフロント部材の固定方法 | |
JP5071408B2 (ja) | バルブタイミング調整装置及びその製造方法 | |
JP5835471B2 (ja) | 弁開閉時期制御装置 | |
JP3284927B2 (ja) | 内燃機関の可変バルブタイミング機構 | |
JP2008163925A (ja) | タンデム型トロコイドポンプ及びその組立方法 | |
WO2015079963A1 (ja) | 弁開閉時期制御装置 | |
JP5534361B2 (ja) | 弁開閉時期制御装置及びそのフロント部材の固定方法 | |
JP4138414B2 (ja) | 内燃機関のバルブタイミング制御装置 | |
JP5692052B2 (ja) | 弁開閉時期制御装置 | |
JP2002235512A (ja) | バルブタイミング調整装置 | |
JP2002276313A (ja) | 内燃機関のバルブタイミング制御装置 | |
JP2007239692A (ja) | バルブタイミング調整装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12746817 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13994568 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 20137020507 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012746817 Country of ref document: EP |