WO2011111090A1 - ターボ用ウェストゲートアクチュエータ - Google Patents
ターボ用ウェストゲートアクチュエータ Download PDFInfo
- Publication number
- WO2011111090A1 WO2011111090A1 PCT/JP2010/001648 JP2010001648W WO2011111090A1 WO 2011111090 A1 WO2011111090 A1 WO 2011111090A1 JP 2010001648 W JP2010001648 W JP 2010001648W WO 2011111090 A1 WO2011111090 A1 WO 2011111090A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- actuator
- shaft
- motor
- main body
- valve
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
-
- 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
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
- F02B37/183—Arrangements of bypass valves or actuators therefor
- F02B37/186—Arrangements of actuators or linkage for bypass valves
-
- 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
Definitions
- This invention relates to a turbo wastegate actuator (WGA) in which a link for opening and closing a valve is attached to one end of an actuator shaft.
- WGA turbo wastegate actuator
- the electrically driven actuator described in Patent Document 1 suppresses thermal expansion of the actuator rod and heat damage of the electric motor unit due to heat conduction from the wastegate valve, and is driven by the electric motor unit.
- An urging mechanism that urges the linear drive shaft in the forward direction and a urging mechanism that urges the linear drive shaft in the backward direction are provided on the actuator rod base end side. It is not disclosed about solving the problem of the (positive pressure / negative pressure) type actuator.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a turbo wastegate actuator that makes it possible to stabilize and improve the position retention and to perform operations other than during supercharging. To do.
- a turbo wastegate actuator includes an actuator main body and a motor main body in which an end face of an actuator shaft and an end face of a motor shaft are brought into contact with each other so as to be separable, and the actuator main body always closes the actuator shaft.
- the motor main body includes a conversion unit that converts the rotational force of the rotor into a linear driving force of the motor shaft.
- the swinging motion of the actuator shaft can be absorbed on the actuator body side and transmitted to the motor body. Without adversely affecting the motor body. Since the end face of the actuator shaft and the end face of the motor shaft are in contact with each other, the assembly is excellent and the actuator shaft and the motor shaft can be obtained at low cost. As a result, the position holding can be stabilized and highly accurate, and operations other than during supercharging can be performed.
- FIG. 1 is a longitudinal sectional view of a closed state of a turbo wastegate actuator according to an embodiment of the present invention, in which an end face of an actuator shaft 1 and an end face of a motor shaft 2 are brought into contact with each other so as to be separably connected.
- a main body 3 and a motor main body 4 are provided.
- the actuator main body 3 includes a biasing member 5 that constantly biases the actuator shaft in the valve closing direction. It is the structure provided with the conversion part 7 converted into force.
- the actuator body 3 has a bearing portion 8 that supports the actuator shaft 1 so as to be movable in the axial direction.
- the actuator shaft 1 has a small-diameter groove 1a in a ring shape on the peripheral surface of the end contacting the motor shaft 2, and a wedge member 9 divided into at least two parts is engaged with the small-diameter groove 1a.
- a spring receiving member 10 is attached by engaging the central cylindrical portion 10a, and a biasing member 5 such as a coil spring that normally biases the actuator shaft 1 in the valve closing direction between the spring receiving member 10 and the actuator body 3. Is provided. For this reason, even if the actuator shaft 1 and the motor shaft 2 are separated, the actuator shaft 1 is always in contact with the motor shaft 2 by the urging force of the urging member 5 during operation of the motor shaft 2, and the two shafts are integrated. And it works.
- One end of an L-shaped link 18 that rotates around the shaft 19 is attached to an end (one end) of the actuator shaft 1 that protrudes from the actuator body 3 to the outside so as to be bent by a pin shaft 19a. Accordingly, when the L-shaped link 18 rotates about the shaft 19, the valve 20 provided at the other end of the L-shaped link 18 opens.
- the motor body 4 has a stator core 11 therein, and stator coils 15 are provided on the stator core 11 at substantially equal intervals.
- a rotor 6 having a magnet 12 coaxially is provided inside the stator core 11, and a screw hole 14 is formed at the center of the rotor 6.
- a predetermined gap (not shown) is formed between the outer surface of the magnet 12 and the inner surface of the stator core 11.
- the upper and lower portions of the rotor 6 are rotatably supported by the motor body 4 by rotating bearings 16a and 16a.
- a power supply terminal portion 17 for supplying power to the stator coil 15 is formed outside the motor body 4.
- FIG. 1 shows a valve closed state.
- the screw portion 2a of the motor shaft 2 screwed with the screw hole 14 of the rotor center hole receives a driving force from the screw.
- the motor shaft 2 moves linearly while pressing the actuator shaft 1 and protrudes out of the motor body 4 without rotating by the rotation-preventing portion 2b inserted through the slit hole 4a at the lower part of the rotor.
- the actuator shaft 1 pressed by the motor shaft 2 protrudes from the actuator body 3 while increasing the urging force of the urging member 5 and presses one end of the L-shaped link 18. For this reason, the L-shaped link 18 rotates about the shaft 19 as a fulcrum, and the valve 20 is opened as shown in FIG.
- the actuator shaft is pushed laterally with respect to the axis by the rotation of the L-shaped link 18 and tilts as shown by the oblique lines in FIG. 3, but the end surface of the actuator shaft and the end surface of the motor shaft Since they are in contact with each other in an arc shape, the motor shaft does not cause a dimensional deviation in the axial direction. Further, since the area of the end surface of the actuator shaft and the one end surface of the motor shaft is increased, a large inclination of the actuator shaft is allowed as shown by the oblique lines in FIG.
- the motor that converts the rotational force of the rotor 6 to the linear driving force of the motor shaft 2 is exemplified as the actuator shaft drive source.
- the motor shaft moves on the linear shaft when energized.
- an electric control actuator an actuator such as a linear solenoid.
- the opening / closing operation of the valve is controlled by electric control of the motor.
- the valve can be controlled, and the valve can be stably operated regardless of the presence / absence and influence of the engine exhaust pressure.
- the end surface of the actuator shaft and the end surface of the motor shaft are configured as circular arc surfaces, even if the actuator shaft is tilted during operation, the motor shaft does not deviate in the axial direction. Also, a large inclination of the actuator shaft can be allowed by increasing the area of the one end face.
- the basic concept of the actuator shaft 1, the biasing member 5, the bearing portion 8, and the spring receiving member 10 in the actuator body 3 is the same as that of the conventional (pneumatic) actuator body. That is, the actuator main body remains the same, and only the drive source is changed from the pneumatic type to the electric control type. This affects the layout, and the electric control type is the same direct acting type as the conventional pneumatic type, and the mountability is good because the drive source is only changed from the pneumatic type to the electric control type.
- the valve closing use of the turbo wastegate actuator is basically performed by the actuator main body, and the motor main body acts on the valve opening.
- current consumption can be reduced.
- the motor unit and the actuator unit are not fastened, the swinging motion of the actuator shaft 1 can be absorbed on the actuator body 3 side without being transmitted to the motor body 4.
- ⁇ Oscillating motion of the actuator shaft can be absorbed on the actuator body side and is not transmitted to the motor body, so that the motor body is not adversely affected. Since the actuator shaft and the motor shaft are brought into contact with each other, the assembly is excellent and the actuator shaft and the motor shaft can be obtained at low cost. As a result, it is possible to stabilize and improve the position holding of the wastegate valve provided in the turbocharger and to perform operations other than during supercharging.
- the turbo wastegate actuator according to the present invention is suitable for stabilizing the position holding of the wastegate valve provided in the turbocharger, increasing the accuracy, and enabling operations other than during supercharging.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
Abstract
Description
・エンジン排圧の影響により位置を保持しにくい(位置保持が不安定、精度が悪い)
・過給時以外に動作できない(過給時以外に動作するためには、別途ポンプ等必要)
等の課題があった。
実施の形態1.
図1はこの発明の実施の形態に係るターボ用ウェストゲートアクチュエータを示す閉弁状態の縦断面であり、アクチュエータ軸1の端面とモータ軸2の端面とを当接させて分離可能に連結したアクチュエータ本体3およびモータ本体4とを備え、アクチュエータ本体3は前記アクチュエータ軸を常時閉弁方向に付勢する付勢部材5を備え、モータ本体4は、ロータ6の回転力をモータ軸2の直線駆動力に変換する変換部7を備えた構成である。
ロータ6の上下部は回転軸受け16a,16aによりモータ本体4に回転可能に支持されている。また、モータ本体4の外部には、ステータコイル15に給電するための電源供給端子部17が形成されている。
図1は閉弁状態を示すもので、この状態でロータ6が回転すると、そのロータ中心穴のネジ穴14と螺合しているモータ軸2のネジ部2aが該ネジから駆動力を受けるため、モータ軸2はロータ下部のスリット穴4aに挿通した回り止め部2bによって回転することなく、アクチュエータ軸1を押圧しながら直線移動してモータ本体4の外に突出する。このモータ軸2で押圧されたアクチュエータ軸1は付勢部材5の付勢力を強めながらアクチュエータ本体3から突出してL字型リンク18の一端を押圧する。このため、L字型リンク18は軸19を支点に回動して、図2に示すように弁20を開弁状態となる。
Claims (3)
- アクチュエータ軸の一端に弁を開閉するリンクを取り付けたターボ用ウェストゲートアクチュエータにおいて、
前記アクチュエータ軸の端面とモータ軸の端面とを当接させて分離可能に連結したアクチュエータ本体およびモータ本体とを備え、
前記アクチュエータ本体は、前記アクチュエータ軸を常時閉弁方向に付勢する付勢部材を備え、
前記モータ本体は、通電により直線軸上を移動する上記モータ軸を備えたことを特徴とするターボ用ウェストゲートアクチュエータ。 - 当接させるアクチュエータ軸の端面とモータ軸の端面とを円弧面としたことを特徴とする請求項1記載のターボ用ウェストゲートアクチュエータ。
- 当接させるアクチュエータ軸の端面とモータ軸の端面の一方の面積を大きくしたことを特徴とする請求項2記載のターボ用ウェストゲートアクチュエータ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/001648 WO2011111090A1 (ja) | 2010-03-09 | 2010-03-09 | ターボ用ウェストゲートアクチュエータ |
DE112010005361.8T DE112010005361B4 (de) | 2010-03-09 | 2010-03-09 | Wastegate-Aktuator für einen Turbolader |
JP2012504135A JP5073120B2 (ja) | 2010-03-09 | 2010-03-09 | ターボ用ウェストゲートアクチュエータ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/001648 WO2011111090A1 (ja) | 2010-03-09 | 2010-03-09 | ターボ用ウェストゲートアクチュエータ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011111090A1 true WO2011111090A1 (ja) | 2011-09-15 |
Family
ID=44562941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/001648 WO2011111090A1 (ja) | 2010-03-09 | 2010-03-09 | ターボ用ウェストゲートアクチュエータ |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP5073120B2 (ja) |
DE (1) | DE112010005361B4 (ja) |
WO (1) | WO2011111090A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016076206A1 (ja) * | 2014-11-10 | 2016-05-19 | 大豊工業株式会社 | ウェイストゲートバルブ |
WO2018061574A1 (ja) * | 2016-09-28 | 2018-04-05 | 大豊工業株式会社 | 電動アクチュエータ及び電動ウェイストゲートバルブシステム |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01210602A (ja) * | 1988-02-18 | 1989-08-24 | Aisan Ind Co Ltd | ダイアフラム式アクチュエータ |
JPH0299723A (ja) * | 1988-10-06 | 1990-04-11 | Toyota Motor Corp | 二段ターボエンジンの過給制御装置 |
JPH0579115U (ja) * | 1992-04-01 | 1993-10-26 | 北村バルブ製造株式会社 | 押圧摺動装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5231164A (en) * | 1975-08-30 | 1977-03-09 | Howa Machinery Ltd | Automatic shuttle changing method and its device of weaving machine |
JPS5758181U (ja) * | 1980-09-22 | 1982-04-06 | ||
JPS62136680U (ja) * | 1986-02-21 | 1987-08-28 | ||
JPH11311112A (ja) * | 1998-03-14 | 1999-11-09 | Fev Motorentechnik Gmbh & Co Kg | 空気戻しバネを備えたピストン内燃機関用の電磁操作可能なガス交換弁 |
JP4848811B2 (ja) * | 2006-03-28 | 2011-12-28 | いすゞ自動車株式会社 | ターボチャージャの制御装置 |
-
2010
- 2010-03-09 DE DE112010005361.8T patent/DE112010005361B4/de not_active Expired - Fee Related
- 2010-03-09 JP JP2012504135A patent/JP5073120B2/ja not_active Expired - Fee Related
- 2010-03-09 WO PCT/JP2010/001648 patent/WO2011111090A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01210602A (ja) * | 1988-02-18 | 1989-08-24 | Aisan Ind Co Ltd | ダイアフラム式アクチュエータ |
JPH0299723A (ja) * | 1988-10-06 | 1990-04-11 | Toyota Motor Corp | 二段ターボエンジンの過給制御装置 |
JPH0579115U (ja) * | 1992-04-01 | 1993-10-26 | 北村バルブ製造株式会社 | 押圧摺動装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016076206A1 (ja) * | 2014-11-10 | 2016-05-19 | 大豊工業株式会社 | ウェイストゲートバルブ |
JP2016089792A (ja) * | 2014-11-10 | 2016-05-23 | 大豊工業株式会社 | ウェイストゲートバルブ |
CN107076014A (zh) * | 2014-11-10 | 2017-08-18 | 大丰工业株式会社 | 废气泄压阀 |
WO2018061574A1 (ja) * | 2016-09-28 | 2018-04-05 | 大豊工業株式会社 | 電動アクチュエータ及び電動ウェイストゲートバルブシステム |
Also Published As
Publication number | Publication date |
---|---|
JPWO2011111090A1 (ja) | 2013-06-27 |
DE112010005361T5 (de) | 2012-12-20 |
JP5073120B2 (ja) | 2012-11-14 |
DE112010005361B4 (de) | 2017-06-08 |
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