CN107237654B - Variable nozzle mechanism arm, variable nozzle mechanism and turbocharger - Google Patents
Variable nozzle mechanism arm, variable nozzle mechanism and turbocharger Download PDFInfo
- Publication number
- CN107237654B CN107237654B CN201710066150.6A CN201710066150A CN107237654B CN 107237654 B CN107237654 B CN 107237654B CN 201710066150 A CN201710066150 A CN 201710066150A CN 107237654 B CN107237654 B CN 107237654B
- Authority
- CN
- China
- Prior art keywords
- arm
- contact surface
- fulcrum
- unison
- pair
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
- F01D17/165—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for radial flow, i.e. the vanes turning around axes which are essentially parallel to the rotor centre line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/24—Control of the pumps by using pumps or turbines with adjustable guide vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
- Control Of Turbines (AREA)
Abstract
The present invention provides a kind of variable nozzle mechanism arm, variable nozzle mechanism and turbocharger for being able to suppress abrasion.Variable nozzle mechanism has: arm (49), with the nozzle vane of arm (49) connection and the unison that engages with arm.Gas is sprayed to turbine wheel.Variable nozzle mechanism, which is configured to the movement based on nozzle vane, keeps the flow path cross sectional area of the gas variable.Arm (49) is configured to rotate centered on fulcrum (47).Arm (49) has the close side contact surface (510) and opening side contact surface (520) contacted with unison.The curvature of close side contact surface (510) becomes smaller with far from fulcrum (47).
Description
Technical field
The present invention relates to arm used in variable nozzle mechanism, the variable nozzle mechanism and has the variable-nozzle machine
The turbocharger of structure.
Background technique
Exhaust gas of the turbocharger into turbine wheel injection volute access, so that turbine wheel be driven to rotate.In the past, existed
In turbocharger, in order to make the characteristic variable of turbocharger, and variable nozzle mechanism is used.Variable nozzle mechanism passes through more
The movement of a nozzle vane increases and decreases the flow path cross sectional area of exhaust gas, so that the flow velocity of the exhaust gas of opposite turbine wheel injection is controlled
System.
A kind of variable nozzle mechanism is proposed in Japanese Unexamined Patent Publication 2014-224498 bulletin (patent document 1), it will
The arm embeded slot that the arm of variable-nozzle is engaged is formed as unison (unison ring), by the close side cell wall of arm embeded slot
Face is formed as concave circular arcs shape, and opening side trough wall surface is formed as convex shaped arc shape.
Patent document 1: Japanese Unexamined Patent Publication 2014-224498 bulletin
Patent Document 1 discloses, by it is in the wall surface of arm embeded slot, because be vented reaction force effect due to usually with
The close side trough wall surface that arm contacts with each other is formed as concave circular arcs shape, thus reduces the contact between close side trough wall surface and arm
Stress, to reduce the abrasion of close side trough wall surface.However, in order to inhibit caused by the position precision variation of nozzle vane
Glut delay (pressurization delay) or exhaust are bad, for variable nozzle mechanism require the abrasion of arm and unison into one
Step reduces, and it is adequately that there are further improved leeway that existing variable nozzle mechanism, which is far from being,.
Summary of the invention
The purpose of the present invention is to provide be able to suppress the variable nozzle mechanism arm of abrasion, be able to suppress arm and unison
Abrasion variable nozzle mechanism and have the turbocharger of the variable nozzle mechanism.
Arm according to the present invention is used in variable nozzle mechanism.Variable nozzle mechanism has: arm, the spray with arm connection
Mouth blade and the unison engaged with arm.Variable nozzle mechanism is configured to, and the movement based on nozzle vane makes to plate
The flow path cross sectional area of the gas of the rotary body injection of piece (Blade) is variable.Arm is arranged to, and can be rotated centered on fulcrum.
Arm has a pair of of the contact surface contacted with unison.The curvature in a face in a pair of of contact surface becomes smaller with far from fulcrum.
In said arm, a face in preferably a pair of contact surface constitutes rotation side when reducing flow path cross sectional area of arm
To the close side contact surface of front side.Another face in a pair of of contact surface constitutes rotation side when increasing flow path cross sectional area of arm
To the opening side contact surface of front side.The curvature of close side contact surface becomes smaller with far from fulcrum.The curvature of opening side contact surface
Become larger with far from fulcrum.
In said arm, the curvature in a face in preferably a pair of contact surface continuously becomes smaller with far from fulcrum.
Variable nozzle mechanism according to the present invention has: arm, with the nozzle vane of arm connection and the association that engages with arm
Adjust ring.Movement of the variable nozzle mechanism based on nozzle vane makes the stream of the gas sprayed to the rotary body with plate (Blade)
Road sectional area is variable.Arm is configured to rotate centered on fulcrum.Arm has a pair of of the contact surface contacted with unison.One
Become smaller to the curvature in a face in contact surface with far from fulcrum.
Turbocharger according to the present invention has turbine and variable nozzle mechanism, which has turbo blade.It can
Become nozzle mechanism and includes arm, the nozzle vane linked with arm and the unison that engages with arm.Variable nozzle mechanism is with spray
The movement of mouth blade keeps the flow path cross sectional area of the gas sprayed to turbine variable.Arm is configured to turn centered on fulcrum
It is dynamic.Arm has a pair of of the contact surface contacted with unison.The curvature in a face in a pair of of contact surface becomes with far from fulcrum
It is small.
In accordance with the invention it is possible to inhibit the abrasion of arm and unison used in variable nozzle mechanism.
Detailed description of the invention
Fig. 1 is cross-sectional view of the variable-nozzle turbocharger along rotary shaft.
The diagrammatic side view of variable nozzle mechanism when Fig. 2 is from the left of Fig. 1.
Fig. 3 is the schematic diagram for indicating the result of arm of variable-nozzle.
Fig. 4 is the schematic diagram for indicating the relationship between the rotation of arm and the rotation of nozzle vane.
Fig. 5 is the signal for the contact portion for indicating that close side contact surface is in contact with arm embeded slot when arm is rotated to closing direction
Figure.
Fig. 6 is the contact for indicating the arm of comparative example and being in contact to close side contact surface when closing direction rotation with arm embeded slot
The schematic diagram in portion.
Fig. 7 is the chart of the relationship between the radius of curvature for indicating the contact portion of arm rotation angle and close side contact surface.
Fig. 8 be indicate arm rotation angle, at a distance from the rotation center to contact portion from unison between relationship chart.
Fig. 9 is to indicate arm rotation angle and contact portion relative to the pass between the sliding distance of the wall sliding of arm embeded slot
The chart of system.
Description of symbols:
10 ... variable-nozzle turbochargers；12 ... rotor cases；14 ... turbine shrouds；15 ... air exits；19 ... sides
Wall portion；20 ... rotors；22 ... turbine wheels；23 turbo blades；24 ... armature spindles；26 ... compressor impellers；27 ... blades；30…
Volute access；31 ... curl up access；36 ... variable nozzle mechanisms；38 ... nozzle rings；41 ... annulus portions；46 ... variable sprays
Mouth；47,57 ... fulcrums；48 ... nozzle vanes；49 ... arms；50,61 ... fitting portions；52 ... unisons；54,54A,54B,54C,
63 ... arm embeded slots；56 ... driving parts；58 ... drive rods；60 ... actuating arms；65 ... actuators；67 ... controllers；68 ... works
Make amount detection unit；510,510Z ... close side contact surface；511,521 ... peri position edge；512,522 ... amphi position edge；520 ... open
Flank contacting surface；530 ... inner surfaces；540 ... outer surfaces；C, CZ ... contact portion；Y1, Y2 ... arrow.
Specific embodiment
Hereinafter, referring to attached drawing, the embodiment of the present invention will be described in detail.It should be noted that for identical in figure
Or considerable part marks same reference numerals, and does not repeat its explanation.
Firstly, being illustrated to the overall construction of variable-nozzle turbocharger 10.It should be noted that in present embodiment
In, it is illustrated for the variable-nozzle turbocharger 10 that the internal combustion engine that act is equipped on vehicle is installed.Fig. 1 is variable-nozzle
Cross-sectional view of the turbocharger 10 along rotary shaft.
As shown in Figure 1, variable-nozzle turbocharger 10 has rotor 20.Rotor 20 is rotatably contained in rotor case
In 12.Rotor case 12 includes turbine shroud 14, compressor housing 16 and central this 3 shells of shell 18.Central shell 18
Link turbine shroud 14 and compressor housing 16.
Rotor 20 has: turbine wheel 22, armature spindle 24 and compressor impeller 26.Turbine wheel 22, armature spindle 24 with
And compressor impeller 26 is formed as one and rotatable.
Turbine wheel 22 is configured in turbine shroud 14.Turbine wheel 22 has multiple turbo blades in peripheral part
(Turbine blade)23。
Armature spindle 24 is formed as one with turbine wheel 22.Armature spindle 24 is configured in central shell 18.24 quilt of armature spindle
Multiple bearing bearings are that can rotate relative to central shell 18.
Compressor impeller 26 is configured in compressor housing 16.Compressor impeller 26 is installed on the front end of armature spindle 24.
Compressor impeller 26 has multiple blades (Impeller) 27 in peripheral part.
Circinate volute access 30 is formed in turbine shroud 14.Ring-type, which is provided with, in volute access 30 curls up access 31.Rotation
It is opposite around the turbo blade 23 of access 31 and turbine wheel 22.Volute access 30 is discharged with from the combustion chamber of internal combustion engine (not shown)
Exhaust gas exhaust channel connection.Therefore, the exhaust gas flowed into volute access 30 is by from the injection of access 31 is curled up to turbine wheel
Thus 22 turbo blade 23 rotates turbine wheel 22.Later, exhaust gas is discharged from the air exit 15 of turbine shroud 14.
Circinate compressor passage 33 is formed in compressor housing 16.Cyclic annular submitting access is provided in compressor passage 33
34.The blade 27 for sending out access 34 and compressor impeller 26 is opposite.Compressor passage 33 through not shown intake channel with it is interior
The combustion chamber of combustion engine.The rotation in conjunction with the rotation of turbine wheel 22 of compressor impeller 26.Compressor impeller 26
The air inlet imported from the air inlet 17 of compressor housing 16 is compressed using blade 27, and passes through centrifugal action for air inlet
It is sent out to access 34 is sent out.The air released into submitting access 34 is via compressor passage 33 to the combustion chamber of internal combustion engine by mistake
Amount supply (pressurization).
Variable-nozzle turbocharger 10 has variable nozzle mechanism 36.Variable nozzle mechanism 36 is to curling up in access 31
The flow velocity of the exhaust gas flowed towards turbine wheel 22 is controlled.Variable nozzle mechanism 36 has circular nozzle ring 38.Nozzle
Ring 38 constitutes the side wall by 18 side of central shell for curling up access 31.Nozzle ring 38 is fixed by multiple (such as 4) binder bolts
In turbine shroud 14.
The peripheral part of bonding part between turbine shroud 14 and central shell 18 is formed with annulus portion 41.It is cyclic annular empty
Between portion 41 and curl up access 31 division made by nozzle ring 38.Flange shape sidewall portion is formed in the peripheral part of central shell 18
19.The side wall in the composition of sidewall portion 19 annulus portion 41.Sidewall portion 19 is fixed on turbine shroud 14 by bolt 42.
Next, being illustrated to the outline structure of variable nozzle mechanism 36.When Fig. 2 is from the left of Fig. 1 can
Become the diagrammatic side view of nozzle mechanism 36.The office of the variable nozzle mechanism 36 from arm side (left side of Fig. 1) is illustrated in Fig. 2
The state in portion's (nozzle ring 38 etc.).
As shown in Fig. 2, variable nozzle mechanism 36 has multiple (such as 9) variable-nozzles 46.It is more relative to nozzle ring 38
A variable-nozzle 46 in the circumferential to configure at equal intervals.Variable-nozzle 46 includes fulcrum 47, nozzle vane (Nozzle vane)
48 and arm 49.Nozzle vane 48 is fixed on one end of fulcrum 47.Arm 49 is fixed on the other end of fulcrum 47.Nozzle vane 48 is borrowed
Fulcrum 47 is helped to be linked to arm 49 securely.
Fulcrum 47 is configured as perforation nozzle ring 38.Fulcrum 47 is supported to can be relative to 38 rotation of nozzle ring.It is variable
Nozzle 46 can be rotated by the bearing of fulcrum 47 relative to nozzle ring 38.Fitting portion 50 is formed in the front end of arm 49.Nozzle
Blade 48 is configured at shown in FIG. 1 curl up in access 31 in the way of it can rotate centered on fulcrum 47.48 quilt of nozzle vane
It is configured to opening and closing and curls up access 31.Arm 49 is configured at ring shown in FIG. 1 in the way of it can rotate centered on fulcrum 47
In shape spatial portion 41.
Variable nozzle mechanism 36 has circular unison (Unison ring) 52.Unison 52 is configured at shown in FIG. 1
In annulus portion 41.Unison 52 is configured as concentric with nozzle ring 38.Relative to nozzle ring 38, configured for unison 52
In 19 side of sidewall portion of central shell 18 shown in FIG. 1.As shown in Figure 1, unison 52 is configured at nozzle ring 38 and variable-nozzle
Between 46 arm 49.
Maintaining roller 44 is configured in 41 side of annulus portion of nozzle ring 38.Maintaining roller 44 is maintained as can be relative to spray
Mouth ring 38 rotates.Maintaining roller 44 remains unison 52 rotatable.Unison 52 is kept that roller 44 remains can be relative to
Turbine shroud 14 rotates.
As shown in Fig. 2, in a side (side for being provided with the arm 49 of variable-nozzle 46) for unison 52, in the circumferential
To be formed at equal intervals and the same number of arm embeded slot 54 of the number of variable-nozzle 46.Diameter of the arm embeded slot 54 along unison 52
It is linear to being formed as one.The fitting portion 50 of the arm 49 of each variable-nozzle 46 is embedded in each arm embeded slot 54.The arm of variable-nozzle 46
49 engage with the arm embeded slot 54 of unison 52.
The sidewall portion 19 of central shell 18 shown in Fig. 1 is provided with the driving part 56 for driving unison to rotate.
Driving part 56 includes fulcrum 57, drive rod 58 and actuating arm 60.Drive rod 58 is fixed on one end of fulcrum 57.Actuating arm
60 are fixed on the other end of fulcrum 57.
Fulcrum 57 is configured as penetrating through the sidewall portion 19 of central shell 18.Fulcrum 57 is supported to can be relative to sidewall portion
19 rotations.Driving part 56 can be rotated by the bearing of fulcrum 57 relative to the sidewall portion 19 of central shell 18.Drive rod 58 is matched
It is placed in outside annulus portion 41.Actuating arm 60 is contained in annulus portion 41.Circle is formed in the front end of actuating arm 60
Fitting portion 61.
As shown in Fig. 2, the side (side for being provided with the arm 49 of variable-nozzle 46) in unison 52 is formed with 1
Actuating arm embeded slot 63.Actuating arm embeded slot 63 is formed between adjacent in the circumferential the 1 group arm embeded slot 54 of unison 52.
Actuating arm embeded slot 63 is linear for one along being formed radially for unison 52.It is chimeric that the fitting portion 61 of actuating arm 60 is embedded in actuating arm
Slot 63.Actuating arm 60 engages with the actuating arm embeded slot 63 of unison 52.
As shown in Figure 1, drive rod 58 is connect with the output section (illustration omitted) of actuator 65.Actuator 65 is for example, electronic
Motor, electromagnetic solenoid and cylinder etc..It should be noted that sometimes in the actuating arm of the output section of actuator 65 and driving part 56
Between 60, it is folded with the power transfer mechanisms such as link mechanism, gear mechanism.
Actuator 65 is by 67 drive control of controller.On actuator 65, it is provided with the actuating quantity progress to its output section
Angular transducer of detection etc. acts amount detection unit 68.Output of the controller 67 based on movement amount detection unit 68 is to variable spray
The rotation angle (aperture of variable-nozzle 46) of mouth 46 is calculated.
If making actuator 65 work using controller 67, drive rod 58 is rotated.Actuating arm 60 and drive rod 58 together with
It is rotated centered on fulcrum 57.With the rotation of actuating arm 60, unison 52 is rotated.It is multiple variable with the rotation of unison 52
Nozzle 46 is synchronized to rotate.
If counter clockwise direction (reference arrow Y1) rotation of the unison 52 in Fig. 2, whole variable-nozzles 46 are with fulcrum
Rotating in an anti-clockwise direction in Fig. 2 centered on 47 axis.At this point, adjacent nozzle vane 48 is each other to the side being separated from each other
To movement.With the movement of nozzle vane 48, the flow path cross sectional area of the exhaust gas between adjacent nozzle vane 48 becomes larger.In this explanation
In book, arm 49 at this time is known as opening direction around the rotation direction of fulcrum 47.
If clockwise direction (reference arrow Y2) rotation of the unison 52 in Fig. 2, whole variable-nozzles 46 are with fulcrum
Clockwise direction centered on 47 axis in Fig. 2 is rotated.At this point, adjacent nozzle vane 48 is each other to close to each other
Direction is mobile.With the movement of nozzle vane 48, the flow path cross sectional area of the exhaust gas between adjacent nozzle vane 48 becomes smaller.In this theory
In bright book, arm 49 at this time is known as closing direction around the rotation direction of fulcrum 47.
In this way, the rotation based on unison 52, whole variable-nozzles 46 are synchronized to rotate, thus (in detail to variable-nozzle 46
Carefully refer to nozzle vane 48) aperture be adjusted.Be opened and closed by nozzle vane 48, adjacent nozzle vane 48 it is mutual
Flow path cross sectional area increase and decrease, the flow velocity for the exhaust gas that thus opposite turbine wheel 22 sprays controlled.
Variable nozzle mechanism 36 is configured to include: variable-nozzle 46, unison 52, driving part 56 and actuator 65.
The arm 49 of variable-nozzle 46 and the actuating arm 60 of unison 52, unison 52 and driving part 56, the drive rod of driving part 56
58 and the output section of actuator 65 be the portion linked each other from actuator 65 into the power transfer path between arm 49
Part.
Next, being illustrated to the structure of the arm 49 of variable-nozzle 46.Fig. 3 is the knot for indicating the arm 49 of variable-nozzle 46
The schematic diagram of structure.As described above, arm 49 is fixed on the end of fulcrum 47.Arm 49 is configured to turn centered on fulcrum 47
It is dynamic.The base end part and fulcrum 47 of arm 49 link.The front end of arm 49 is provided with fitting portion 50, which is configured at coordination
In the arm embeded slot 54 of ring 52.
The outer surface of fitting portion 50 includes a pair of of contact surface, inner surface 530 and outer surface 540.A pair of of contact surface
Including close side contact surface 510 and opening side contact surface 520.Close side contact surface 510 and opening side contact surface 520 are in fitting portion
50 are embedded in the state of the arm embeded slot 54 of unison 52 and contact with the wall surface of arm embeded slot 54.Close side contact surface 510 with
The close side cell wall face contact of arm embeded slot 54.The opening side cell wall face contact of opening side contact surface 520 and arm embeded slot 54.Such as
Shown in Fig. 2, close side trough wall surface is formed as being parallel to each other with opening side trough wall surface, and interval configures.
Close side contact surface 510 is that being located at for fitting portion 50 rotates unison 52 along the direction arrow Y2 shown in Fig. 2
When the outer surface of the front side of the rotation direction (above-mentioned closing direction) of arm 49 that is rotated centered on fulcrum 47.Opening side contact surface
520 are, being located at for fitting portion 50 is rotated centered on fulcrum 47 when rotating unison 52 along the direction arrow Y1 shown in Fig. 2
Arm 49 rotation direction (above-mentioned opening direction) front side outer surface.
It is that close side contact surface 510 is located at arm 49 so that the flow path cross sectional area of the exhaust gas between adjacent nozzle vane 48 is reduced
Rotation direction of mode when moving front side.It is that close side contact surface 510 is located at arm 49 so that between adjacent nozzle vane 48
Exhaust gas rotation direction of the mode that increases of flow path cross sectional area when moving rear side.
Close side contact surface 510 have close side contact surface 510 47 side of close fulcrum periphery (peri position edge 511) and
The periphery (amphi position edge 512) of 47 side of separate fulcrum of close side contact surface 510.Peri position edge 511 formed close side contact surface 510 with
The boundary of inner surface 530.The boundary of amphi position edge 512 formation close side contact surface 510 and outer surface 540.
It is that opening side contact surface 520 is located at arm 49 so that the flow path cross sectional area of the exhaust gas between adjacent nozzle vane 48 increases
Rotation direction of mode when moving front side.It is that opening side contact surface 520 is located at arm 49 so that between adjacent nozzle vane 48
Rotation direction when moving of the mode of flow path cross sectional area reduction of exhaust gas rear side.
Opening side contact surface 520 have opening side contact surface 520 47 side of close fulcrum periphery (peri position edge 521) and
The periphery (amphi position edge 522) of 47 side of separate fulcrum of opening side contact surface 520.Peri position edge 521 formed opening side contact surface 520 with
The boundary of inner surface 530.The boundary of amphi position edge 522 formation opening side contact surface 520 and outer surface 540.
Inner surface 530 is to be in the state that the variable nozzle mechanism 36 shown in Fig. 2 of fitting portion 50 is completed
The outer surface of nozzle ring 38 or the radially inner side of unison 52.Outer surface 540 is that the shown in Fig. 2 of fitting portion 50 can be changed
The outer surface of radial outside in nozzle ring 38 or unison 52 in the state that nozzle mechanism 36 is completed.Inner surface
530 have flat shape with outer surface 540.Inner surface 530 is arranged to be parallel to each other with outer surface 540.
The close side contact surface 510 and opening side contact surface 520 of fitting portion 50 have curve form.Close side contact surface
510 and opening side contact surface 520 are non-radiused shape, and curvature is non-constant.The curvature of close side contact surface 510 is in peri position edge
It is maximum at 511, it is gradually become smaller with the curvature from peri position edge 511 with amphi position edge 512 is tended to, curvature is at amphi position edge 512
It is minimum.The curvature of opening side contact surface 520 is maximum in amphi position edge 522, tends to peri position edge 521 and curvature with from amphi position edge 522
It gradually becomes smaller, curvature is minimum at peri position edge 521.
Close side contact surface 510 tends to amphi position edge 512 with from peri position edge 511, and radius of curvature slowly becomes larger.Opening flanks
Contacting surface 520 tends to peri position edge 521 with from amphi position edge 522, and radius of curvature slowly becomes larger.Close side contact surface 510 is adjoint to be left
Fulcrum 47, continual curvature becomes smaller.For close side contact surface 510 with fulcrum 47 is left, curvature is gradually decrescence few.Opening side contact surface
520 with fulcrum 47 is left, and continual curvature becomes larger.With fulcrum 47 is left, curvature increases opening side contact surface 520 gradually.
Close side contact surface 510 has smoothly connected continuous curve surface shape.Opening side contact surface 520 has smooth be connected
Continuous curve surface shape.Close side contact surface 510 and opening side contact surface 520 for example also can have from by cycloid, hyperbolic spiral shell
The curve form chosen in the combination that rotation, logarithmic spiral, involute and clothoid are constituted.Close side contact surface 510 with
Opening side contact surface 520 can have same shape, it is possible to have different shape.
Fig. 4 is the schematic diagram for indicating the relationship between the rotation of arm 49 and the rotation of nozzle vane 48.Arm 49 is based on unison
52 rotation is rotated centered on fulcrum 47 to both direction.Arm embeded slot 54A expression shown in Fig. 4, arm embeded slot 54
The fitting portion 50 of the arm 49 configured in such a way that center line is along the radially extending of nozzle ring 38 or unison 52 is received
Configuration in the case of appearance.It should be noted that in the present specification, center line being radially extended and fitting portion 50 is embedded in arm embeded slot
The configuration of arm 49 when 54A, referred to as baseline configuration.
Arm embeded slot 54B shown in Fig. 4 indicates that arm embeded slot 54 is with fulcrum 47 to compared with baseline configuration
The fitting portion 50 for the arm 49 that counter clockwise direction of the center in Fig. 4 is rotated accommodated in the case of configuration.Arm is chimeric
Slot 54C indicate, arm embeded slot 54 to the clockwise direction compared with baseline configuration centered on fulcrum 47 in Fig. 4
The fitting portion 50 of the arm 49 rotated accommodated in the case of configuration.
48 sandwiched fulcrum 47 of nozzle vane, and link with arm 49.Nozzle vane 48 is configured to
The heart and 49 unitary rotation of arm.
Arm 49 shown in solid and nozzle vane 48 indicate in Fig. 4, arm 49 when arm 49 be in baseline configuration and spray
The configuration of mouth blade 48.Arm 49 shown in single dotted broken line and nozzle vane 48 indicate that arm 49 is compared with baseline configuration in Fig. 4
The configuration of the arm 49 when rotation and nozzle vane 48 has occurred more in the counterclockwise direction.49 He of arm shown in double dot dash line in Fig. 4
Nozzle vane 48 indicates that the arm 49 and nozzle leaf when rotation has occurred in arm 49 along clockwise direction compared with baseline configuration
The configuration of piece 48.
Compared with the nozzle vane 48 of baseline configuration, nozzle vane 48 shown in single dotted broken line and adjacent spray in Fig. 4
Interval between mouth blade 48 becomes larger.Therefore, the flow path cross sectional area of the exhaust gas between adjacent nozzle vane 48 increases.Match with benchmark
The nozzle vane 48 set compares, in Fig. 4 between nozzle vane 48 shown in double dot dash line and adjacent nozzle vane 48 between
Every becoming smaller.Therefore, the flow path cross sectional area of the exhaust gas between adjacent nozzle vane 48 is reduced.
Arm 49 and nozzle vane 48 can configure shown in single dotted broken line from Fig. 4 to be turned to the direction for the flow path for closing exhaust gas
It moves to configuration shown in double dot dash line.Arm 49 and nozzle vane 48 can configure useless to opening from Fig. 4 shown in double dot dash line
The direction of the flow path of gas turns to configuration shown in single dotted broken line.
Fig. 5 is the contact portion C for indicating close side contact surface 510 and arm embeded slot 54 when arm 49 is rotated to closing direction
Schematic diagram.In Fig. 5, in order to be simplified, the close side contact surface 510 and arm illustrated in the fitting portion 50 of arm 49 is fitted into
The profile of slot 54.Stain shown in Fig. 5 indicates the close side contact surface 510 and arm embeded slot of the arm 49 rotated to closing direction
The contact portion C of 54 wall surface (close side trough wall surface) contact.Arm 49 is illustrated in Fig. 5 to match shown in single dotted broken line from Fig. 4
Set the movement that contact portion C when configuring shown in double dot dash line is turned to via baseline configuration.
As shown in figure 5, contact portion C is present in peri position edge 511 when the fitting portion 50 of arm 49 is in arm embeded slot 54B
Near.It is rotated with arm 49 to closing direction, far from peri position edge 511, Xiang Yuanwei edge 512 is close for the position of contact portion C.And
And when the fitting portion of arm 49 50 is in arm embeded slot 54C, contact portion C is present near amphi position edge 512.
When arm 49 is rotated to closing direction, contact portion that close side contact surface 510 is contacted with the wall surface of arm embeded slot 54
C, it is mobile from 511 side of peri position edge of close side contact surface 510 towards 512 side one direction of amphi position edge on close side contact surface 510.
When the flow path cross sectional area of the exhaust gas between adjacent nozzle vane 48 is formed as minimum, contact portion C is present in closing side contacts
Near the lesser amphi position edge 512 of curvature in face 510.
When arm 49 is rotated to closing direction, contact portion C is inside from the diameter of unison 52 on the wall surface of arm embeded slot 54
Side is mobile towards outside.
It is rotated with arm 49 to closing direction, that is, reduced with the flow path cross sectional area of exhaust gas, act on nozzle vane 48
The pressure (so-called exhaust reaction force) of exhaust gas increases, therefore increases the resistance that arm 49 rotates.With the resistance rotated to arm 49
The increase of power is corresponding, and the curvature of close side contact surface 510 becomes smaller.Increase with the resistance rotated to arm 49, closes side contacts
The contact area that face 510 is contacted with the wall surface of arm embeded slot 54 increases.Thus, it is suppressed that act on close side contact surface 510 with
The increase of pressure between the wall surface of arm embeded slot 54.
Fig. 6 is to indicate that the close side contact surface 510Z when arm of comparative example is rotated to closing direction connects with arm embeded slot 54
The schematic diagram of the contact portion CZ of touching.The arm of comparative example shown in fig. 6 is different from the arm 49 of above-described embodiment, and there is circular arc planar to close
It closes and flanks contacting surface 510Z.Stain shown in Fig. 6 indicates that close side contact surface 510Z connects with what the wall surface of arm embeded slot 54 contacted
Contact portion CZ.Illustrated in Fig. 6 arm 49 from Fig. 4 allocation position shown in single dotted broken line via baseline configuration turn to two point draw
The movement of contact portion CZ shown in line when allocation position.
When the arm of comparative example shown in Fig. 6 is rotated to closing direction, compared at a distance from the contact portion C movement of embodiment
Compared with the distance that contact portion CZ is moved on close side contact surface 510Z is opposite to become smaller.
When the arm of comparative example is rotated to closing direction, contact portion CZ is on the wall surface of arm embeded slot 54 along unison 52
It is radial to move back and forth.More specifically, in the fitting portion of the arm of comparative example from the state in the arm embeded slot 54B to closing side
To when turning to baseline configuration, contact portion CZ is on the wall surface of arm embeded slot 54 from the radially inner side of unison 52 towards outer sidesway
It is dynamic.Later, the state in arm embeded slot 54C is turned to from baseline configuration to closing direction in the fitting portion of the arm of comparative example
When, contact portion CZ arm embeded slot 54 wall surface from the radial outside of unison 52 towards medial movement.
The close side contact surface 510Z of the arm of comparative example has circular shape, therefore has same curvature.Even if comparative example
Arm around fulcrum rotate, the contact area that close side contact surface 510 is contacted with the wall surface of arm embeded slot 54 is also constant.Cause
This, increases with resistance of the comparative example to arm rotation, act on close side contact surface 510Z and arm embeded slot 54 wall surface it
Between pressure increase.
Fig. 7 is the chart of the relationship between the rotation angle for indicating arm and the radius of curvature of the contact portion of close side contact surface.
Rotation angle of the arm of horizontal axis expression embodiment and comparative example in Fig. 7 around fulcrum.Arm is in rotation angle when baseline configuration
Degree is set as 0.Rotation angle when arm is rotated relative to from baseline configuration to closing direction is set as dextrorotation gyration.By arm relative to
Rotation angle when baseline configuration is rotated to opening direction is set as negative rotation gyration.The longitudinal axis in Fig. 7 indicates the fitting portion of arm
The radius of curvature of close side contact surface at the contact portion that close side contact surface is contacted with the wall surface of arm embeded slot.
In Fig. 7 and aftermentioned Fig. 8, Fig. 9, chart relevant to the arm 49 of embodiment indicated by the solid line is represented by dashed line
Chart relevant to the arm of comparative example shown in fig. 6.
As described above, the arm 49 with embodiment is rotated to closing direction, the curvature of close side contact surface 510 becomes smaller.It is bent
Rate radius is the inverse of curvature, therefore, as shown in fig. 7, increasing with the rotation angle of the arm 49 of embodiment, close side contact surface
510 radius of curvature becomes larger.In contrast, the close side contact surface 510Z of the arm of comparative example is circular shape, so even arm
Rotation, radius of curvature also do not change, and are formed as constant value.
As a result, when the rotation angle of arm shown in Fig. 7 becomes maximum, the close side contact surface 510 of embodiment
Radius of curvature becomes the 2 times or more of the radius of curvature of the close side contact surface 510Z of comparative example.As described above, with arm to closing
The rotation angle in direction increases, and increases the resistance of arm rotation.In the arm 49 of embodiment, increase with the resistance rotated to arm 49
Greatly, close side contact surface 510 becomes the shape closer to plane.In the arm 49 of embodiment, rotation of the arm 49 to closing direction
Angle is bigger, and the area of the close side contact surface 510 contacted with the wall surface of arm embeded slot 54 is bigger.Therefore, in the arm of embodiment
In 49, the increase of pressure of the inhibiting effect between close side contact surface 510 and the wall surface of arm embeded slot 54.
Fig. 8 is the chart for indicating arm rotation angle, relationship at a distance from the rotation center to contact portion from unison 52.
Horizontal axis in Fig. 8 indicates rotation angle of the arm same as figure 7 around fulcrum.The longitudinal axis in Fig. 8 indicates circular unison 52
The distance between center, the contact portion being in contact with the wall surface of arm embeded slot with the close side contact surface of the fitting portion of arm.
It is rotated with the arm 49 of embodiment to closing direction, contact portion C is on the wall surface of arm embeded slot 54 from unison 52
Radially inner side it is mobile towards outside one direction.On the other hand, when the arm of comparative example is rotated to closing direction, contact portion CZ exists
Radial direction on the wall surface of arm embeded slot 54 along unison 52 moves back and forth.
The close side contact surface of the fitting portion of arm is slided with the wall surface of arm embeded slot with the rotation of arm.In embodiment
In arm 49, the adjoint arm 49 in the wall surface of arm embeded slot 54 is slided to the rotation of closing direction relative to close side contact surface 510
Dynamic range is bigger.As comparative example, if contact portion CZ is moved back and forth on the wall surface of arm embeded slot 54, in arm embeded slot
In the smaller range of 54 wall surface, the wall surface of arm embeded slot 54 is slided relative to close side contact surface.Therefore, in embodiment
In, for comparative example, avoid the generation of the micro-slip on the wall surface of arm embeded slot 54.
Fig. 9 is the figure for indicating arm rotation angle and contact portion relative to the relationship of the sliding distance of the wall surface of arm embeded slot
Table.Horizontal axis in Fig. 9 indicates rotation angle of the arm same as figure 7 around fulcrum.Longitudinal axis expression in Fig. 9 is rotated in arm around fulcrum
Distance of the close side contact surface relative to the wall sliding of arm embeded slot during 5 °.
As described above, in embodiment, when arm 49 is rotated to closing direction, contact portion C is mobile to a direction.Than
Compared in example, when arm is rotated to closing direction, contact portion CZ is moved back and forth.In embodiment, the model being positive in arm rotation angle
In enclosing, contact portion C is mobile from 511 side of peri position edge towards 512 side of amphi position edge on close side contact surface 510, in arm embeded slot 54
Wall surface on it is mobile from radially inner side towards outside.In a comparative example, in the range of arm rotation angle is positive, contact portion CZ exists
It is mobile from peri position edge side towards amphi position edge side on close side contact surface 510Z, from radial outside court on the wall surface of arm embeded slot 54
Move inward.
In embodiment, in the range of arm rotation angle is positive, what contact portion C was moved on close side contact surface 510
It is direction, consistent with the direction that contact portion C is moved on the wall surface of arm embeded slot 54.Therefore, in embodiment, close side contact surface
510 relative to arm embeded slot 54 wall surface formed relative movement become close to pure rolling movement.On the other hand, in comparative example
In, in the range of arm rotation angle is positive, direction and contact portion CZ that contact portion CZ is moved on close side contact surface 510Z
The direction moved on the wall surface of arm embeded slot 54 is different.As a result, in embodiment, for comparative example, closing
The sliding that contacting surface 510 is formed relative to the wall surface of arm embeded slot 54 is flanked to be greatly reduced.
Though there is also with the local duplicate part of above description, be exemplified below the feature structure of present embodiment.Such as Fig. 2
Shown, the arm 49 of present embodiment is configured to rotate centered on fulcrum 47.Arm embeded slot is formed in unison 52
54.As shown in figure 3, arm 49 has close side contact surface 510 and opening side contact surface 520.Close side contact surface 510 and opening side
Contact surface 520 is contacted with the wall surface of arm embeded slot 54.Close side contact surface 510 is with separate fulcrum 47, and curvature becomes smaller.
In the present embodiment, when arm 49 is rotated to closing direction, increase with the resistance rotated to arm 49, close side
The area that contact surface 510 is contacted with the wall surface of arm embeded slot 54 increases.Inhibiting effect is in close side contact surface 510 and arm as a result,
The increase of pressure between the wall surface of embeded slot 54.In addition, when arm 49 is rotated to closing direction arm embeded slot 54 wall surface phase
The cunning that the sliding and close side contact surface 510 formed for close side contact surface 510 is formed relative to the wall surface of arm embeded slot 54
It is dynamic to reduce.Therefore, in the present embodiment, the close side contact surface 510 and the close side contact surface of arm 49 can be reduced simultaneously
Abrasion between the wall surface of the arm embeded slot 54 of 510 contacts.
By optimizing the shape of the close side contact surface 510 of arm 49, the abrasion of arm 49 and unison 52 can reduce, therefore
Without forming the surface treatment of hard film etc. on the surface that arm 49 and unison 52 are slided.It is adjoint thereby, it is possible to avoid
The increase of the cost of surface treatment and generation, in addition, it is anxious to can be avoided the abrasion when producing more than the abrasion of the thickness of epithelium
The case where play progress.
In addition, as shown in figure 3, opening side contact surface 520 is adjoint to leave fulcrum 47, and curvature becomes larger.Arm embeded slot 54
For close side contact surface 510 contact close side trough wall surface, with the opening of arm embeded slot 54 contacted for opening side contact surface 520
Side channel wall surface is formed as to cater in parallel to be flanked with the mode of the wall surface of parallel arm embeded slot 54, selection opening appropriate
The shape of contacting surface 520.
In addition, as shown in figure 3, close side contact surface 510 is with leaving fulcrum 47 and continual curvature becomes smaller.By that will close
The curve form that contacting surface 510 is formed as smooth is flanked, can be avoided between close side contact surface 510 and the wall surface of arm embeded slot 54
Contact area part abruptly increase, therefore can reliably reduce the abrasion of arm 49 and arm embeded slot 54.
It should be noted that close side contact surface 510 and opening side contact surface 520 are via flat in the arm 49 illustrated referring to Fig. 3
Planar inner surface 530 and outer surface 540 link.In the fitting portion of arm, planar inner surface and outside can not be formed
Surface can also be formed continuously close side contact surface and opening side contact surface.
It in embodiments, can also be by opening side contact surface 520 though optimizing the shape of close side contact surface 510
Be formed as identical shape.In this case, identical as above-mentioned close side contact surface 510, performance can reduce and arm embeded slot
The function and effect of the abrasion of 54 wall surface.
Though embodiments of the present invention are illustrated as described above, this time disclosed embodiment is at whole aspects
It is to illustrate, should be considered not is restrictive description.Protection scope of the present invention be not be above description but such as
Shown in claims, it is intended that including whole changes in the technical idea and range that are equal with claims.
Claims (5)
1. a kind of variable nozzle mechanism arm is arm used in variable nozzle mechanism,
The variable nozzle mechanism arm is characterized in that,
The variable nozzle mechanism has: the arm, with the nozzle vane of arm connection and the coordination that engages with the arm
Ring, and be configured to make the flow path cross sectional area of the gas sprayed to the rotary body with plate can based on the movement of the nozzle vane
Become,
The arm is configured to rotate centered on fulcrum, and has a pair of of the contact surface contacted with the unison,
The arm has base end part and front end, and the pair of contact surface is set to the front end, is used for and the unison
Arm embeded slot contact,
A face in the pair of contact surface is in the maximum curvature close to the fulcrum side, and curvature is with far from the branch
Axis and become smaller, another face in the pair of contact surface is in the maximum curvature far from the fulcrum side, and curvature is with remote
Become larger from the fulcrum.
2. variable nozzle mechanism arm according to claim 1, which is characterized in that
A face in the pair of contact surface is constituted on front side of rotation direction when reducing the flow path cross sectional area of the arm
Close side contact surface, another face in the pair of contact surface constitutes when increasing the flow path cross sectional area of the arm
Opening side contact surface on front side of rotation direction.
3. variable nozzle mechanism arm according to claim 1 or 2, which is characterized in that
The curvature in a face in the pair of contact surface continuously becomes smaller with far from the fulcrum.
4. a kind of variable nozzle mechanism, has:
Arm,
With the arm connection nozzle vane and
The unison engaged with the arm,
Movement based on the nozzle vane makes to can be changed to the flow path cross sectional area for having the gas that vaned rotary body sprays,
The variable nozzle mechanism is characterized in that,
The arm is configured to rotate centered on fulcrum, and has a pair of of the contact surface contacted with the unison,
The arm has base end part and front end, and the pair of contact surface is set to the front end, is used for and the unison
Arm embeded slot contact,
A face in the pair of contact surface is in the maximum curvature close to the fulcrum side, and curvature is with far from the branch
Axis and become smaller, another face in the pair of contact surface is in the maximum curvature far from the fulcrum side, and curvature is with remote
Become larger from the fulcrum.
5. a kind of turbocharger, which is characterized in that have:
Turbine, with turbo blade；With
Variable nozzle mechanism, with arm, with the nozzle vane of arm connection and the unison that engages with the arm, and
Movement based on the nozzle vane keeps the flow path cross sectional area of the gas sprayed to the turbine variable,
The arm is configured to rotate centered on fulcrum, and has a pair of of the contact surface contacted with the unison,
The arm has base end part and front end, and the pair of contact surface is set to the front end, is used for and the unison
Arm embeded slot contact,
A face in the pair of contact surface is in the maximum curvature close to the fulcrum side, and curvature is with far from the branch
Axis and become smaller, another face in the pair of contact surface is in the maximum curvature far from the fulcrum side, and curvature is with remote
Become larger from the fulcrum.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016064341 | 2016-03-28 | ||
| JP2016-064341 | 2016-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107237654A CN107237654A (en) | 2017-10-10 |
| CN107237654B true CN107237654B (en) | 2019-04-16 |
Family
ID=59983812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710066150.6A Active CN107237654B (en) | 2016-03-28 | 2017-02-06 | Variable nozzle mechanism arm, variable nozzle mechanism and turbocharger |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6597689B2 (en) |
| CN (1) | CN107237654B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021008819A (en) * | 2017-10-06 | 2021-01-28 | 株式会社Ihi | Variable displacement mechanism |
| CN108506051A (en) * | 2018-04-19 | 2018-09-07 | 萍乡德博科技股份有限公司 | Pressure booster with variable cross section nozzle ring |
| DE112019006997T5 (en) * | 2019-05-09 | 2021-11-25 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | EXHAUST GAS TURBOCHARGER WITH VARIABLE DISPLACEMENT |
| WO2020261417A1 (en) | 2019-06-26 | 2020-12-30 | 三菱重工エンジン＆ターボチャージャ株式会社 | Variable nozzle device and variable capacity-type exhaust turbocharger |
| CN112324569A (en) * | 2020-09-17 | 2021-02-05 | 杭州萧山技师学院 | Turbine disc with self-lubricating structure for miniature gas turbine |
| CN114961884B (en) * | 2022-04-27 | 2024-04-05 | 萍乡德博科技股份有限公司 | Vane assembly of petrol engine turbocharging variable-section nozzle ring and nozzle ring |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4659295A (en) * | 1984-04-20 | 1987-04-21 | The Garrett Corporation | Gas seal vanes of variable nozzle turbine |
| DE102004043928A1 (en) * | 2004-09-11 | 2006-04-13 | Ihi Charging Systems International Gmbh | Vane adjusting drive especially for exhaust powered turbocharger has a control ring linked to a support mounting using pivot mounted support arms with shaped outer ends |
| WO2010120028A1 (en) * | 2009-04-17 | 2010-10-21 | (주)계양정밀 | Nozzle assembly for a variable geometry turbocharger, and a production method therefor |
| EP2395212A1 (en) * | 2009-02-06 | 2011-12-14 | Toyota Jidosha Kabushiki Kaisha | Variable capacity supercharger for internal combustion engine |
| JP2014224498A (en) * | 2013-05-16 | 2014-12-04 | 株式会社豊田自動織機 | Variable nozzle turbocharger |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2308175C3 (en) * | 1973-02-19 | 1975-09-04 | Saurer-Allma Gmbh, Allgaeuer Maschinenbau, 8960 Kempten | Toggle booster |
| JPS5970035U (en) * | 1982-10-30 | 1984-05-12 | いすゞ自動車株式会社 | Variable displacement turbocharger nozzle vane drive device |
| JP5141335B2 (en) * | 2008-03-28 | 2013-02-13 | 株式会社Ｉｈｉ | Variable nozzle unit and variable displacement turbocharger |
| KR101144515B1 (en) * | 2009-10-27 | 2012-05-11 | 현대자동차주식회사 | Nozzle Assembly of Variable Geometry Turbocharger |
| US20110138805A1 (en) * | 2009-12-15 | 2011-06-16 | Honeywell International Inc. | Conjugate curve profiles for vane arms, main-arms, and unison rings |
| JP5964081B2 (en) * | 2012-02-29 | 2016-08-03 | 三菱重工業株式会社 | Variable capacity turbocharger |
| DE112013001529B4 (en) * | 2012-04-27 | 2021-10-14 | Borgwarner Inc. | Exhaust gas turbocharger |
| DE102012218138A1 (en) * | 2012-10-04 | 2014-04-10 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Supercharger for motor vehicle, has adjusting element formed as thin sheet component that is arranged on turbine wheel at opposite side of blade bearing ring in which several guide vanes are rotatably mounted |
-
2017
- 2017-02-06 CN CN201710066150.6A patent/CN107237654B/en active Active
- 2017-03-23 JP JP2017057526A patent/JP6597689B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4659295A (en) * | 1984-04-20 | 1987-04-21 | The Garrett Corporation | Gas seal vanes of variable nozzle turbine |
| DE102004043928A1 (en) * | 2004-09-11 | 2006-04-13 | Ihi Charging Systems International Gmbh | Vane adjusting drive especially for exhaust powered turbocharger has a control ring linked to a support mounting using pivot mounted support arms with shaped outer ends |
| EP2395212A1 (en) * | 2009-02-06 | 2011-12-14 | Toyota Jidosha Kabushiki Kaisha | Variable capacity supercharger for internal combustion engine |
| WO2010120028A1 (en) * | 2009-04-17 | 2010-10-21 | (주)계양정밀 | Nozzle assembly for a variable geometry turbocharger, and a production method therefor |
| JP2014224498A (en) * | 2013-05-16 | 2014-12-04 | 株式会社豊田自動織機 | Variable nozzle turbocharger |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017180462A (en) | 2017-10-05 |
| JP6597689B2 (en) | 2019-10-30 |
| CN107237654A (en) | 2017-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107237654B (en) | Variable nozzle mechanism arm, variable nozzle mechanism and turbocharger | |
| CN106014492B (en) | Variable geometry nozzle for a partitioned volute | |
| JP6354904B2 (en) | Variable capacity turbocharger | |
| CN103649491B (en) | The aperture limiting structure of variable nozzle mechanism and variable capacity type turbocharger | |
| US20120082539A1 (en) | Variable geometry turbine | |
| CN110219822A (en) | Turbocharger compressor with the adjustable adjustment mechanism for including vortex inducer | |
| US20110138805A1 (en) | Conjugate curve profiles for vane arms, main-arms, and unison rings | |
| WO2013116136A1 (en) | Mixed-flow turbocharger with variable turbine geometry | |
| US9028202B2 (en) | Variable geometry turbine | |
| JP6163789B2 (en) | Variable nozzle unit and variable capacity turbocharger | |
| CN108027074B (en) | Flow variable valve mechanism and booster | |
| WO2015066102A1 (en) | Turbine with variable inlet cross-sectional area | |
| JP2013130116A (en) | Variable nozzle unit and variable capacity type supercharger | |
| JP4044392B2 (en) | Variable turbocharger | |
| JP6690730B2 (en) | Variable nozzle unit and supercharger | |
| JP6617837B2 (en) | Variable nozzle unit and turbocharger | |
| WO2016071712A1 (en) | Compressor and turbocharger | |
| JP5446969B2 (en) | Compressor | |
| US20200040761A1 (en) | Variable-geometry turbocharger | |
| JP5018533B2 (en) | Variable capacity turbine and variable capacity turbocharger | |
| EP3225787B1 (en) | Turbocharger with variable nozzle mechanism | |
| JP6459881B2 (en) | Variable nozzle turbocharger | |
| JPH0442501Y2 (en) | ||
| JP6115179B2 (en) | Variable nozzle unit and variable capacity turbocharger | |
| US11982222B2 (en) | Wastegate valve device, turbine, and turbocharger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |