CN104712386A

CN104712386A - Valve timing control device

Info

Publication number: CN104712386A
Application number: CN201410787861.9A
Authority: CN
Inventors: 松永祐树
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2013-12-17
Filing date: 2014-12-17
Publication date: 2015-06-17
Anticipated expiration: 2034-12-17
Also published as: DE102014225878A1; JP2015117589A; JP5895927B2; CN104712386B

Abstract

A vane rotor (30) rotates relative to a housing (20) according to an oil pressure in a front displacement chamber (60 to 63) and a rear displacement chamber (64 to 67). A groove portion (40 to 43) is defined in one of the housing and a hub part (31) of the vane rotor and extends in a rotational direction. A projection part (50 to 53) projecting from the other of the housing and the hub portion of the blade is inserted in the groove portion and is engaged with an inner wall of the groove portion in the direction of rotation in contact, so a range of a relative rotation between the housing and define the vane rotor.

Description

Valve timing controller

Technical field

The present invention relates to the valve timing controller of a kind of intake valve of controlling combustion engine or the opening and closing timing of exhaust valve.

Background technique

Valve timing controller controls the opening and closing timing of intake valve or exhaust valve by the relative rotation phase changed between the bent axle of motor and camshaft.Valve timing controller has the housing rotated together with bent axle and the vane rotor being arranged in case inside.Vane rotor is fixed to camshaft and can rotates relative to housing.

JP 2013-19356A describes a kind of valve timing controller, the rear plate and being projected into that wherein the first protuberance is fixed to housing is limited in the room in advance of case inside, and the second protuberance is fixed to rear plate and is projected in the delay chamber of case inside.When being projected into the blade of protuberance contact vane rotor of room in advance, rotatable phase is controlled to maximum delay position.When being projected into the blade of protuberance contact vane rotor of delay chamber, rotatable phase is controlled to maximum anticipated future position.

But in the valve timing controller of JP 2013-19356A, because protuberance protrudes in housing in corresponding room, the length in the boots portion extended radially inwardly from the pipe portion of housing circumferentially shortens the diameter of protuberance.In this case, the closure size that the inner radial wall in boots portion and axle are drawn a bow to the full between portion shortens.

And, if the first and second protuberance press fits be fixed in two holes be each defined in rear plate, because two press-fitted portions are required for the first and second protuberances, the positional deviation caused by manufacturing tolerances may become large.

Summary of the invention

The object of this invention is to provide a kind of can at the standardized valve timing controller performing phase control accurately realizing vane rotor and housing for various work angle simultaneously.

According to an aspect of the present invention, relative rotation phase between a kind of live axle by change internal-combustion engine and driven shaft controls the valve timing controller of the opening and closing timing of intake valve or exhaust valve, described intake valve or exhaust valve are driven by driven shaft, and described valve timing controller comprises housing and vane rotor.Housing rotate together with live axle and comprise front and rear panels, pipe portion that described front and rear panels are connected to each other and the boots portion radially inwardly outstanding from described pipe portion.Vane rotor comprises the axle be connected with driven shaft and to draw a bow to the full portion and blade, and described blade is from the axle portion of drawing a bow to the full radially outwardly the hydraulic chamber of housing to be divided into room and delay chamber in advance.The axle portion of drawing a bow to the full has the tubular form of the inner radial wall in boots portion described in sliding contact.Vane rotor rotates relative to housing according to the oil pressure in advance room and delay chamber.The axle portion of drawing a bow to the full of vane rotor has the groove part extended along sense of rotation.Front or rear panel have the protuberance be arranged in groove part.The inwall in a rotational direction of protuberance contact groove part is to limit the relative rotating range between housing with vane rotor.

According to an aspect of the present invention, relative rotation phase between a kind of live axle by change internal-combustion engine and driven shaft controls the valve timing controller of the opening and closing timing of intake valve or exhaust valve, described intake valve or exhaust valve are driven by described driven shaft, and described valve timing controller comprises housing and vane rotor.Housing rotate together with live axle and comprise front and rear panels, pipe portion that front and rear panels are connected to each other and the boots portion radially inwardly outstanding from pipe portion.Vane rotor comprises the axle be connected with driven shaft and to draw a bow to the full portion and blade, and described blade is radially outstanding the hydraulic chamber of housing to be divided into room and delay chamber in advance from the axle portion of drawing a bow to the full.The axle portion of drawing a bow to the full has the tubular form of the inner radial wall in sliding contact boots portion.Vane rotor rotates relative to housing according to the oil pressure shifted to an earlier date in room and delay chamber.Front or rear panel have the groove part extended along sense of rotation.The axle portion of drawing a bow to the full of vane rotor has the protuberance be arranged in groove part.The inwall in a rotational direction of protuberance contact groove part is to limit the relative rotating range between housing with vane rotor.

Housing performs relative rotation with vane rotor.By described protuberance being inserted relative rotating range described in regulation in described groove part.

Therefore, it is possible to such as pass through the work angle of the length along sense of rotation in adjusting grooves portion or the alteration of form valve timing controller of adjustment protuberance.Therefore, the process that work angle required for valve timing controller changes the profile of the profile of hydraulic chamber in housing or the blade of vane rotor has been abolished.Therefore, it is possible to make the housing in valve timing controller and vane rotor standardization.As a result, pressing mold or mould for being formed housing and vane rotor by sintering can be shared valve timing controller.

Particularly, protuberance is arranged on protuberance and can inserts position in groove part.Therefore, compared with JP 2013-19356A, protuberance is not projected in the hydraulic chamber of housing.Therefore, it is possible to make the inner radial wall in boots portion become large by the region that the outer wall that itself and axle draw a bow to the full portion is in slidable contact with each other by the length increasing circumferentially direction, boots portion.Due to boots portion and axle draw a bow to the full between sealability can be maintained high, valve timing controller can perform phase control accurately.And the intensity of housing can be improved along the length of sense of rotation by increase boots portion.And, the quantity of protuberance can be reduced relative to JP 2013-19356A.Therefore, by reducing the manufacturing tolerances caused by protuberance, valve timing controller can perform phase control accurately.

Accompanying drawing explanation

From the detailed description that reference accompanying drawing is below made, above and other target of the present invention, feature and advantage will become obvious.In the accompanying drawings:

Fig. 1 is the sectional view of the valve timing controller illustrated according to the first embodiment;

Fig. 2 is the sectional view of the valve timing controller that the first embodiment is shown;

Fig. 3 is the cross-sectional view intercepted along the line III-III of Fig. 1;

Fig. 4 is the schematic diagram of the power transmission system that the valve timing controller with the first embodiment is shown;

Fig. 5 is the cross-sectional view of the valve timing controller illustrated according to the second embodiment;

Fig. 6 is the sectional view of the valve timing controller illustrated according to the 3rd embodiment;

Fig. 7 is the sectional view of the valve timing controller illustrated according to the 4th embodiment;

Fig. 8 is the cross-sectional view of the valve timing controller illustrated according to the 5th embodiment; With

Fig. 9 is the view observed along the IX direction of arrow of Fig. 8.

Embodiment

Hereinafter embodiments of the invention will be described with reference to the drawings.In these embodiments, the part corresponding to the content of previous embodiment description can be designated identical reference character, and can be omitted for the redundant description of this part.When only describing a kind of structure a part of in one embodiment, another previous embodiment goes for other parts of this structure.Can combine even without clearly stating each several part, these parts also can be combined.Can be combined even without clearly stating each embodiment, as long as this combination does not damage, then these embodiments can be partially combined.

(the first embodiment)

Referring to figs. 1 to Fig. 4, the first embodiment is described.The valve timing controller 1 of this embodiment is for the power transmission system with internal-combustion engine 10 as shown in Figure 4.In power transmission system, gear 12 is fixed to the bent axle 11 corresponding to the live axle of motor 10.Gear 15 is fixed to camshaft 13 corresponding to driven shaft and gear 16 is fixed to camshaft 14 corresponding to driven shaft.Chain 17 engages with gear 12,15 and 16 and moment of torsion is delivered to camshaft 13 and 14 from bent axle 11.Camshaft 13 drives exhaust valve 18, and camshaft 14 drives intake valve 19.Gear 16 is connected to chain 17, and the vane rotor that will be described below is connected to camshaft 14.Valve timing controller 1 rotates with the predetermined phase difference be arranged between bent axle 11 and camshaft 14 by making bent axle 11 and camshaft 14 and controls the opening and closing timing of intake valve 19.Valve timing controller 1 rotates along the clockwise direction of Fig. 4.

As shown in Figure 1 to Figure 3, valve timing controller 1 comprises housing 20, vane rotor 30, groove part 40 and protuberance 50.Housing 20 has header board 21, rear plate 22, pipe portion 23 and boots portion 24-27, and above-mentioned part is connected together by bolt 4.Header board 21 has disk shape and has front hole 29, and camshaft 14 is in axial direction through described front hole 29.Rear plate 22 has disk shape and is arranged to relative with header board 21.Rear plate 22 has metapore 28, and camshaft 14 is in axial direction through described metapore 28.Be fixed to the hole 54 be limited in rear plate 22 while there is protuberance 50 press fit of post shapes.Afterwards protuberance 50 is being described.

Pipe portion 23 and boots portion 24-27 are integrally formed as the one single piece be placed between header board 21 and rear plate 22.The periphery in pipe portion 23 has described gear 15.Boots portion 24-27 at predetermined intervals along pipe portion 23 circumferentially and radially inwardly give prominence to from pipe portion 23.The hydraulic chamber with roughly fan shaped cross section shape is limited between sense of rotation boots portion adjacent one another are.Chain 17 is as shown in Figure 4 wound around around the gear 15 in pipe portion 23, and housing 20 and bent axle 11 rotate integrally.

Vane rotor 30 is arranged such that relatively to rotate relative to housing 20.Vane rotor 30 has: the axle with tube shape is drawn a bow to the full portion 31 and drawing a bow to the full portion 31 radially multiple blade 32-35 outwardly from described axle.Axle is drawn a bow to the full the inner radial wall of boots portion 24-27 of radial outer wall liquid impermeable ground sliding contact housing 20 in portion 31.Axle portion 31 of drawing a bow to the full has center hole 36, and camshaft 14 is in axial direction through described center hole 36.The inwall of center hole 36 and camshaft 14 liquid impermeable ground be fixed to one another to make relative rotation be impossible.

The hydraulic chamber of housing 20 is divided into room 60-63 and delay chamber 64-67 in advance by blade 32-35.Oil is fed to room 60-63 or discharge from shifting to an earlier date room 60-63 in advance by advance oily passage 70-73.Oil is fed to delay chamber 64-67 by postponing oily passage 74-77 or discharges from delay chamber 64-67.Sealed member 39 is set to the radial outer wall of blade 32-35.Sealed member 39 regulation oil is flowing between room 60-63 and delay chamber 64-67 in advance.Vane rotor 30 can rotate relative to housing 20 according to the oil pressure shifted to an earlier date in room 60-63 and delay chamber 64-67.The direction of arrow in advance as depicted in figs. 1 and 2 represents the direction in advance of the relative housing 20 of vane rotor 30.The delay direction of arrow as depicted in figs. 1 and 2 represents the retarding direction of vane rotor 30 relative to housing 20.

Retainer piston 80 is contained in the receiving bore be limited in vane rotor 30 to make retainer piston 80 can be in axial direction reciprocal.Ring 82 is arranged in recess 81 recessed in rear plate 22 to make retainer piston 80 can coordinate with recess 81.When vane rotor 30 is positioned at the maximum delay position relative to housing 20, retainer piston 80 can be entered inside ring 82 by the biasing force of spring 83.

First pressure chamber 84 and the second pressure chamber 85 limit around the circumference of retainer piston 80.First pressure chamber 84 is communicated with delay chamber 64 with in the second pressure chamber 85, and the first pressure chamber 84 is communicated with in advance room 60 with another in the second pressure chamber 85.When be applied to from the first pressure chamber 84 retainer piston 80 oil pressure and be applied to the oil pressure of retainer piston 80 from the second pressure chamber 85 and become the biasing force being greater than spring 83 time, retainer piston 80 is separated with ring 82.

The axle of vane rotor 30 portion 31 of drawing a bow to the full has the groove part 40 extended along sense of rotation.Groove part 40 be positioned at axle draw a bow to the full portion 31 outer circumferential face radially inner side on.Namely, groove part 40 and delay chamber 66 are separated from one another by the draw a bow to the full periphery wall 45 in portion 31 of axle.The axle periphery wall 45 in portion 31 of drawing a bow to the full is in slidable contact with each other by predetermined surface area with the inner radial wall in boots portion 25.Because predetermined surface area can become large, therefore, it is possible at delay chamber 66 adjacent one another are and in advance maintain high sealability between room 63.

The protuberance 50 outstanding from rear plate 22 is inserted into groove part 40.The relative rotating range that protuberance 50 relative to each other rotates with vane rotor 30 with its middle shell 20 of groove part 40 regulation.As shown in Figure 1, when protuberance 50 is caught the inwall on the in advance side of sense of rotation contacting groove part 40, rotatable phase is controlled to make vane rotor 30 to be positioned at maximum delay position relative to housing 20.On the other hand, as shown in Figure 2, when protuberance 50 contacts another inwall on the delay side of sense of rotation of groove part 40, rotatable phase is controlled to make vane rotor 30 to be positioned at maximum anticipated future position place relative to housing 20.

As shown in Figure 3, space 55 is limited between the bottom of groove part 40 and protuberance 50.Therefore, when groove part 40 undesirably extend oil time, the resistance of the oil acted on protuberance 50 can be reduced.

Groove part 40 changes along work angle required for valve timing controller 1 of the length of sense of rotation.The adjustment of the length of groove part 40 can perform for the formation of the insert type mould of groove part 40 by resetting relative to the mould for the formation of vane rotor 30 (such as, by sintering).As other method, after forming vane rotor 30 by sintering, such as can also form groove part 40 by cutting and scraping.The work angle of valve timing controller 1 is changed by the adjustment of the length of groove part 40.The each hydraulic chamber formed between boots portion 24-27 adjacent one another are is set to the maximum work angle be greater than needed for valve timing controller 1.

The operation of valve timing controller 1 is described.

As shown in Figure 1, when motor 10 stops, protuberance 50 contacts the inwall on the side in advance of sense of rotation of groove part 40, and retainer piston 80 is coupled to inside ring 82 to make camshaft 14 maintain maximum delay position relative to the phase place of bent axle 11.

Immediately after ato unit 10, oil is not still fully fed to delay chamber 64-67, in advance room 60-63, the first pressure chamber 84 and the second pressure chamber 85 to be continued to engage with ring 82 to make retainer piston 80.Therefore, until oil is fed to each pressure chamber fully, when camshaft 14 receives torque ripple, the abnormal sound produced by the collision between housing 20 and vane rotor 30 can not be produced.

After the start of engine, when oil is fed to each hydraulic chamber completely from oil hydraulic pump (not shown), due to the biasing force of the oil pressure opposing spring 83 of the first pressure chamber 84 and the second pressure chamber 85, retainer piston 80 from ring 82 out to make housing 20 can have relative rotation with vane rotor 30.

Advance operation is described.When valve timing controller 1 performs advance operation, be fed in advance room 60-63 from pressure control valve (not shown) by shifting to an earlier date oily passage 70-73 by the oil of oil hydraulic pump pumping.And the oil of delay chamber 64-67 is discharged to food tray (not shown) by the oily passage 74-77 of delay and pressure control valve.Thus the oil pressure of room 60-63 acts on blade 32-35 in advance, and vane rotor 30 rotates along shifting to an earlier date direction relative to housing 20.

As shown in Figure 2, when protuberance 50 is caught the inwall on the delay side of sense of rotation contacting groove part 40, vane rotor 30 is controlled to maximum anticipated future position relative to the relative phase of housing 20.Now, the blade 32-35 of the vane rotor 30 and boots portion 24-27 of housing 20 does not contact with each other, and predetermined gap is limited between the blade 32-35 of the vane rotor 30 and boots portion 24-27 of housing 20.

Illustrate and postpone operation.When valve timing controller 1 performs delay operation, be fed to delay chamber 64-67 from pressure control valve by postponing oily passage 74-77 by the oil of oil hydraulic pump pumping.And the oil of room 60-63 is by oily passage 70-73 and pressure control valve are discharged to food tray in advance in advance.Thus the oil pressure of delay chamber 64-67 acts on blade 32-35, and vane rotor 30 rotates along retarding direction relative to housing 20.

As shown in Figure 1, when protuberance 50 is caught the inwall on the side in advance of sense of rotation contacting groove part 40, vane rotor 30 is controlled to maximum delay position relative to the relative phase of housing 20.Now, the blade 32-35 of the vane rotor 30 and boots portion 24-27 of housing 20 does not contact with each other, and predetermined gap is limited between the blade 32-35 of the vane rotor 30 and boots portion 24-27 of housing 20.

When vane rotor 30 reaches target phase, the oil of pressure control valve regulation delay chamber 64-67 and in advance room 60-63 is discharged to food tray.Now, oil pressure passes through to postpone oily passage 74-77 and shift to an earlier date oily passage 70-73 be marginally fed to delay chamber 64-67 respectively and shift to an earlier date room 60-63 from pressure control valve.Thus housing 20 and vane rotor 30 are maintained at target phase place.

When exporting the instruction being used for stopping motor in the operation at valve timing controller 1, similar to aforesaid operations, vane rotor 30 to rotate relative to housing 20 along retarding direction and stops at maximum delay position, in described maximum delay position, protuberance 50 contacts the inwall on the side in advance of sense of rotation of groove part 40.When the operation of oil hydraulic pump stops in this state and when the pressure of the first pressure chamber 84 and the second pressure chamber 85 reduces, retainer piston 80 is engaged with ring 82 by the biasing force of spring 83.Motor 10 stops in this state.

According to the valve timing controller 1 of the first embodiment, the axle that the protuberance 50 of preparation inserts vane rotor 30 in rear plate 22 draw a bow to the full portion 31 groove part 40 in make relative rotating range between housing 20 with vane rotor 30 by regulation.

The groove 40 in portion 31 can be drawn a bow to the full along the length of sense of rotation or by regulating the work angle of alteration of form valve timing controller 1 of protuberance 50 by adjusting axle.Therefore, work angle required for valve timing controller 1 profile of the hydraulic chamber of housing 20 must do not changed.And, work angle required for valve timing controller 1 must not change the profile of the blade 32-35 of vane rotor 30.Therefore, valve timing controller 1 can make housing 20 and vane rotor 30 standardization.

As a result, the pressing mold for being come molded shell 20 and vane rotor 30 by sintering can be made to share.

According to the first embodiment, the axle that groove part 40 is formed in vane rotor 30 is drawn a bow to the full in portion 31, and protuberance 50 is formed in protuberance 50 can insert position in groove part 40.Because protuberance 50 is not outstanding in the room 60-63 and delay chamber 64-67 in advance of housing, ensure that boots portion 24-27 has along the predetermined length of sense of rotation.Therefore, boots portion 24-27 and the axle sealability of drawing a bow to the full between portion 31 is maintained high state, and valve timing controller 1 can perform phase control accurately.And the intensity of housing 20 can by guaranteeing that boots portion 24-27 improves along the length of sense of rotation.

According to the first embodiment, the work angle of valve timing controller 1 can be set up by a protuberance 50 and groove part 40.Therefore, valve timing controller 1 can perform phase control accurately by reducing the manufacturing tolerances of protuberance 50 and groove part 40.

According to the first embodiment, groove part 40 is formed in axle and draws a bow to the full on the outer surface inner side in radial directions in portion 31.

Because the hydraulic chamber of housing 20 and groove part 40 are separate by the draw a bow to the full periphery wall 45 in portion 31 of axle, boots portion 24-27 and the axle sealability of drawing a bow to the full between portion 31 is maintained high.Therefore, valve timing controller 1 can perform phase control accurately.

(the second embodiment)

With reference to figure 5, second embodiment is described.In a second embodiment, the inner radial wall 46 of groove part 40 is positioned on the inner side more inside in radial directions than the inner circumferential of the metapore 28 of rear plate 22.Thus groove part 40 is communicated with outside air by the gap between the metapore 28 of rear plate 22 and camshaft 14.

When oil flows undesirably inside groove part 40, oil is by interstitial row exhaust valve timing controller 1.Due to can the resistance of the oil of eliminating effect on protuberance 50, valve timing controller 1 can improve the responsiveness to phase control.

(the 3rd embodiment)

With reference to figure 6, the 3rd embodiment is described.In the third embodiment, the axle of vane rotor 30 portion 31 of drawing a bow to the full has the first groove part 41 and the second groove part 42.Rear plate 22 has the first protuberance 51 be arranged in the first groove part 41 and the second protuberance 52 be arranged in the second groove part 42.

As shown in Figure 6, when protuberance 51 contacts the inwall on the side in advance of sense of rotation of the first groove part 41, the second bump 52 contacts the inwall on the side in advance of sense of rotation of the second groove part 42.Although not shown, when the first protuberance 51 contacts the inwall on the delay side of sense of rotation of the first groove part 41, the second protuberance 52 contacts the inwall on the delay side of sense of rotation of the second groove part 42.

According to the 3rd embodiment, when valve timing controller 1 to perform the phase control of vane rotor 30 to maximum anticipated future position or maximum delay position, be caught to contact the inwall of the first groove part 41 identical time with the first protuberance 51, the second protuberance 52 is caught the inwall of contact second groove part 42.Therefore, because the striking force acted on the first protuberance 51 and the second protuberance 52 reduces by half, the durability of the first protuberance 51 and the second protuberance 52 can be improved.

(the 4th embodiment)

With reference to figure 7, the 4th embodiment is described.In the fourth embodiment, compared with the 3rd embodiment, the position of the second bump 52 is shifted on the retard side.

As shown in Figure 7, when the first protuberance 51 contacts the inwall on the side in advance of sense of rotation of the first groove part 41, the second protuberance 52 is away from the inwall on the side in advance of sense of rotation of the second groove part 42.

Although not shown, when the second protuberance 52 contacts the inwall on the delay side of sense of rotation of the second groove part 42, the first protuberance 51 is away from the inwall on the delay side of sense of rotation of the first groove part 41.

Therefore, maximum delay position is specified by the first groove part 41 and the first protuberance 51, and maximum anticipated future position is specified by the second groove part 42 and the second protuberance 52.

According to the 4th embodiment, the work angle of valve timing controller 1 can be regulated relative to the position of rear plate 22 by any one in change first protuberance 51 or the second protuberance, and does not change size and the size of the first groove part 41 and the second groove part 42.

(the 5th embodiment)

With reference to figure 8 and Fig. 9, the 5th embodiment is described.In the 5th embodiment, be fixed to protuberance 53 press fit the hole 56 that the axle being limited to vane rotor 30 is drawn a bow to the full in portion 31.Groove part 43 is limited in rear plate 22.Protuberance 53 and groove part 43 can relative rotating ranges between regulation housing 20 with vane rotor 30.

On the outer surface that groove part 43 is positioned at rear plate 22 inner side radially, and be communicated to outside air.

Groove part 43 can have the first groove part 41 and the second groove part 42 be limited in rear plate 22.Protuberance 53 can have the first protuberance 51 be arranged in the first groove part 41 and the second protuberance 52 be arranged in the second groove part 42.

Similar to the 4th embodiment, when first inwall on the in advance side of sense of rotation of the first groove part 41 contacts with each other with the first protuberance 51, being separated with the second protuberance 52 at first inwall shifted to an earlier date on side of sense of rotation of the second groove part 42.Although not shown, when second inwall on the delay side of sense of rotation of the second groove part 42 and the second protuberance 52 contact with each other, second inwall on the delay side of sense of rotation of the first groove part 41 is separated with the first protuberance 51.

Similar to the 3rd embodiment, when first inwall on the in advance side of sense of rotation of the first groove part 41 contacts with each other with the first protuberance 51, first contact internal walls second protuberance 52 shifted to an earlier date on side in sense of rotation of the second groove part 42.Although not shown, when second inwall on the delay side of sense of rotation of the second groove part 42 and the second protuberance 52 contact with each other, second contact internal walls first protuberance 51 on the delay side of sense of rotation of the first groove part 41.

The advantage similar to first to fourth embodiment can be realized in the 5th embodiment.

(other embodiments)

In the above-described embodiments, valve timing controller regulates the opening and closing timing of intake valve.Alternately, valve timing controller can regulate the opening and closing timing of exhaust valve.

In first to fourth embodiment, be fixed to the hole be limited in rear plate to protuberance press fit.Alternately, protuberance can engage with the internal thread be limited in rear plate.And protuberance such as can be formed integrally as one single piece by sintering and rear plate.

In first to fourth embodiment, protuberance is set to rear plate.Alternately, protuberance can be set to header board.In this case, the axle that groove part is disposed adjacent vane rotor with header board is drawn a bow to the full portion.

In the 5th embodiment, be fixed to protuberance press fit the hole that the axle being limited to vane rotor is drawn a bow to the full in portion.Alternately, protuberance can engage by the internal thread of drawing a bow to the full in portion with the axle being limited to vane rotor.And protuberance such as can be formed integrally as one single piece by sintering and vane rotor.

In the 5th embodiment, groove part is set to rear plate.Alternately, groove part can be set to header board.In this case, protuberance is configured to give prominence to from axle portion of drawing a bow to the full towards header board.

In the third embodiment, valve timing controller has two groups of protuberances and groove part.Alternately, valve timing controller can have three groups or more group protuberances and groove part.

In the first to the 5th embodiment, protuberance has post shapes, and groove part has oval fan shape.Alternately, the shape of protuberance can carry out for this oval fan shape the shape that changes to make the shape of groove part can change to be suitable for protuberance.

These change and amendment needs to be interpreted as in the scope of the present invention of such as additional claim restriction.

Claims

1. a valve timing controller, it controls the opening and closing timing of intake valve (19) or exhaust valve (18) by the relative rotation phase changed between the live axle (11) of internal-combustion engine (10) and driven shaft (13,14), described intake valve or described exhaust valve are driven by described driven shaft, and described valve timing controller comprises:

The housing (20) rotated together with described live axle, described housing comprises:

Header board (21) and rear plate (22),

Make the pipe portion (23) that described header board and described rear plate are connected to each other, and

The boots portion (24-27) radially inwardly outstanding from described pipe portion; With

Vane rotor (30), it comprises

The axle be connected with described driven shaft is drawn a bow to the full portion (31), and the described axle portion of drawing a bow to the full has the tube shape with the inner radial wall sliding contact in described boots portion, and

Blade (32-35), it is from the described axle portion of drawing a bow to the full radially outwardly the hydraulic chamber of described housing to be divided into room (60-63) and delay chamber (64-67) in advance, wherein

Described vane rotor rotates relative to described housing according to the oil pressure in described room in advance and described delay chamber,

The described axle portion of drawing a bow to the full of described vane rotor has the groove part (40-43) extended along sense of rotation,

Described header board or described rear plate have the protuberance (50-53) be arranged in described groove part,

Described protuberance contacts the inwall in described sense of rotation of described groove part to limit the relative rotating range between described housing with described vane rotor.

2. valve timing controller according to claim 1, wherein

Described groove part is positioned at described axle and draws a bow to the full on the outer circumferential face inner side in radial directions in portion.

3. valve timing controller according to claim 1 and 2, wherein

Described groove part has and is limited to described axle and draws a bow to the full the first groove part (41) in portion and the second groove part (42),

Described protuberance has the first protuberance (51) be arranged in described first groove part and the second protuberance (52) be arranged in described second groove part,

When first inwall in a rotational direction of described first groove part and described first protuberance contact with each other, first inwall in described sense of rotation of described second groove part and described second projection from, and

When second inwall in described sense of rotation of described second groove part and described second protuberance contact with each other, second inwall in described sense of rotation of described first groove part and described first projection from.

4. valve timing controller according to claim 1 and 2, wherein

When first inwall in a rotational direction of described first groove part and described first protuberance contact with each other, the second protuberance described in first contact internal walls in described sense of rotation of described second groove part, and

When second inwall in described sense of rotation of described second groove part and described second protuberance contact with each other, the first protuberance described in second contact internal walls in described sense of rotation of described first groove part.

5. valve timing controller according to claim 1 and 2, wherein

Described groove part is communicated with outside air.

6. a valve timing controller, it controls the opening and closing timing of intake valve (19) or exhaust valve (18) by the relative rotation phase changed between the live axle (11) of internal-combustion engine (10) and driven shaft (13,14), described intake valve or described exhaust valve are driven by described driven shaft, and described valve timing controller comprises:

Header board (21) and rear plate (22),

Vane rotor (30), it comprises

The axle be connected with described driven shaft is drawn a bow to the full portion (31), and the described axle portion of drawing a bow to the full has the tube shape with the inner radial wall sliding contact in described boots portion,

Described header board or described rear plate have the groove part (43) extended along sense of rotation,

The described axle portion of drawing a bow to the full of described vane rotor has the protuberance (53) be arranged in described groove part, and

The inwall in described sense of rotation of described protuberance contact groove part is to limit the relative rotating range between described housing with described vane rotor.

7. valve timing controller according to claim 6, wherein

On the outer circumferential face that described groove part is positioned at described header board or described rear plate inner side in radial directions.

8. the valve timing controller according to claim 6 or 7, wherein

Described groove part has and is limited to the first groove part (41) in described header board or described rear plate and the second groove part (42),

9. the valve timing controller according to claim 6 or 7, wherein

Described groove part has and is limited to the first groove part (41) in described header board or described rear plate and the second groove part,

10. the valve timing controller according to claim 6 or 7, wherein

Described groove part is communicated with outside air.