Variable-capacity exhaust turbocharger equipped with variable-nozzle mechanism
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0597138
(2008-10-03)
|
등록번호 |
US-8376696
(2013-02-19)
|
우선권정보 |
JP-2007-331119 (2007-12-21) |
국제출원번호 |
PCT/JP2008/068403
(2008-10-03)
|
§371/§102 date |
20091022
(20091022)
|
국제공개번호 |
WO2009/081642
(2009-07-02)
|
발명자
/ 주소 |
- Suzuki, Hiroshi
- Jinnai, Yasuaki
- Ueno, Yoichi
- Hayashi, Noriyuki
|
출원인 / 주소 |
- Mitsubishi Heavy Industries, Ltd.
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
5 |
초록
▼
A variable-capacity exhaust turbocharger is provided which is equipped with a variable-nozzle mechanism having a lever plate and a peripheral structure capable of ensuring regular operability of a nozzle vane and of preventing an occurrence of local excessive stress by increasing rigidity of the lev
A variable-capacity exhaust turbocharger is provided which is equipped with a variable-nozzle mechanism having a lever plate and a peripheral structure capable of ensuring regular operability of a nozzle vane and of preventing an occurrence of local excessive stress by increasing rigidity of the lever plate without increasing a thickness of the lever plate. In a variable-capacity exhaust turbocharger equipped with a variable-nozzle mechanism including: a plurality of nozzle vanes; an annular drive ring; and a lever plate provided as many as the number of the nozzle vanes so that one end is connected to an engagement pin portion engaging with a groove portion formed in the drive ring and the other end is fixed to each nozzle vane, the drive ring is disposed between the lever plate and a nozzle mount in an axial direction, and the lever plate is curved in an axial direction from a surface of the lever plate connected to the fixed portion on the side of the nozzle vane so as to be connected to the groove portion of the drive ring.
대표청구항
▼
1. A variable-capacity exhaust turbocharger equipped with a variable-nozzle mechanism comprising: a plurality of nozzle vanes rotatably supported to a nozzle mount fixed to a bearing housing or a casing including a turbine casing;an annular drive ring interlocked with an actuator; anda lever plate p
1. A variable-capacity exhaust turbocharger equipped with a variable-nozzle mechanism comprising: a plurality of nozzle vanes rotatably supported to a nozzle mount fixed to a bearing housing or a casing including a turbine casing;an annular drive ring interlocked with an actuator; anda lever plate provided in a circumferential direction as many as the number of the nozzle vanes so that one end is connected to an engagement pin portion engaging with a groove portion formed in the drive ring and another end is fixed to each nozzle vane,wherein each lever plate is swung by a rotation of the drive ring, and each blade angle of the plurality of nozzle vanes is changed by the swing of the lever plate,wherein the drive ring is disposed between the lever plate and the nozzle mount in an axial direction, andwherein the lever plate is curved in an axial direction from a surface of the lever plate connected to the fixed portion on the side of the nozzle vane so as to be connected to the groove portion of the drive ring. 2. The variable-capacity exhaust turbocharger equipped with the variable-nozzle mechanism according to claim 1, wherein the engagement pin portion of the lever plate is formed into an engagement protrusion integrally formed with the lever plate and engaging with the groove portion. 3. The variable-capacity exhaust turbocharger equipped with the variable-nozzle mechanism according to claim 2 wherein the engagement pin portion of the lever plate is formed in an oval shape in which a section of a fitting-sliding surface of the engagement pin portion is formed in a circular-arc shape and a non-sliding portion of the engagement pin portion is formed in a linear shape, and wherein a long axis of the oval shape is disposed in a circumferential direction of the drive ring. 4. A variable-capacity exhaust turbocharger equipped with a variable-nozzle mechanism comprising: a plurality of nozzle vanes of which both ends are supported so that one end is rotatably supported to a nozzle mount fixed to a bearing housing or a casing including a turbine casing and the other end is supported to a nozzle plate;an annular drive ring interlocked with an actuator; anda lever plate provided in a circumferential direction as many as the number of the nozzle vanes so that one end is connected to an engagement pin portion engaging with a groove portion formed in the drive ring and the other end is fixed to each nozzle vane,wherein each lever plate is swung by a rotation of the drive ring, and each blade angle of the plurality of nozzle vanes is changed by the swing of the lever plate,wherein the drive ring is disposed between the lever plate and the nozzle mount in an axial direction, andwherein the lever plate has a configuration according to claim 2. 5. The variable-capacity exhaust turbocharger equipped with the variable-nozzle mechanism according to claim 1, wherein the engagement pin portion of the lever plate is formed in such a manner that an engagement pin is fitted in a direction perpendicular to a surface of the lever plate and the engagement pin engages with the groove portion. 6. The variable-capacity exhaust turbocharger equipped with the variable-nozzle mechanism according to claim 5 wherein the engagement pin portion of the lever plate is formed in an oval shape in which a section of a fitting-sliding surface of the engagement pin portion is formed in a circular-arc shape and a non-sliding portion of the engagement pin portion is formed in a linear shape, and wherein a long axis of the oval shape is disposed in a circumferential direction of the drive ring. 7. A variable-capacity exhaust turbocharger equipped with a variable-nozzle mechanism comprising: a plurality of nozzle vanes of which both ends are supported so that one end is rotatably supported to a nozzle mount fixed to a bearing housing or a casing including a turbine casing and the other end is supported to a nozzle plate;an annular drive ring interlocked with an actuator; anda lever plate provided in a circumferential direction as many as the number of the nozzle vanes so that one end is connected to an engagement pin portion engaging with a groove portion formed in the drive ring and the other end is fixed to each nozzle vane,wherein each lever plate is swung by a rotation of the drive ring, and each blade angle of the plurality of nozzle vanes is changed by the swing of the lever plate,wherein the drive ring is disposed between the lever plate and the nozzle mount in an axial direction, andwherein the lever plate has a configuration according to claim 5. 8. The variable-capacity exhaust turbocharger equipped with the variable-nozzle mechanism according to claim 1, wherein the engagement pin portion of the lever plate is formed in an oval shape in which a section of a fitting-sliding surface of the engagement pin portion is formed in a circular-arc shape and a non-sliding portion of the engagement pin portion is formed in a linear shape, and wherein a long axis of the oval shape is disposed in a circumferential direction of the drive ring. 9. A variable-capacity exhaust turbocharger equipped with a variable-nozzle mechanism comprising: a plurality of nozzle vanes of which both ends are supported so that one end is rotatably supported to a nozzle mount fixed to a bearing housing or a casing including a turbine casing and the other end is supported to a nozzle plate;an annular drive ring interlocked with an actuator; anda lever plate provided in a circumferential direction as many as the number of the nozzle vanes so that one end is connected to an engagement pin portion engaging with a groove portion formed in the drive ring and the other end is fixed to each nozzle vane,wherein each lever plate is swung by a rotation of the drive ring, and each blade angle of the plurality of nozzle vanes is changed by the swing of the lever plate,wherein the drive ring is disposed between the lever plate and the nozzle mount in an axial direction, andwherein the lever plate has a configuration according to claim 1. 10. A variable-capacity exhaust turbocharger equipped with a variable-nozzle mechanism comprising: a plurality of nozzle vanes rotatably supported to a nozzle mount fixed to a bearing housing or a casing including a turbine casing;an annular drive ring interlocked with an actuator; anda lever plate provided in a circumferential direction as many as the number of the nozzle vanes so that one end is connected to an engagement pin portion engaging with a groove portion formed in the drive ring and the other end is fixed to each nozzle vane,wherein each lever plate is swung by a rotation of the drive ring, and each blade angle of the plurality of nozzle vanes is changed by the swing of the lever plate,wherein the drive ring is disposed between the lever plate and the nozzle mount in an axial direction, andwherein a curved portion curved in an axial direction from a surface of the lever plate connected to the fixed portion on the side of the nozzle vane and an engagement protrusion connected to the curved portion and engaging with the groove portion are formed by bending one sheet of plate. 11. The variable-capacity exhaust turbocharger equipped with the variable-nozzle mechanism according to claim 10 wherein the engagement pin portion of the lever plate is formed in an oval shape in which a section of a fitting-sliding surface of the engagement pin portion is formed in a circular-arc shape and a non-sliding portion of the engagement pin portion is formed in a linear shape, and wherein a long axis of the oval shape is disposed in a circumferential direction of the drive ring. 12. A variable-capacity exhaust turbocharger equipped with a variable-nozzle mechanism comprising: a plurality of nozzle vanes of which both ends are supported so that one end is rotatably supported to a nozzle mount fixed to a bearing housing or a casing including a turbine casing and the other end is supported to a nozzle plate;an annular drive ring interlocked with an actuator; anda lever plate provided in a circumferential direction as many as the number of the nozzle vanes so that one end is connected to an engagement pin portion engaging with a groove portion formed in the drive ring and the other end is fixed to each nozzle vane,wherein each lever plate is swung by a rotation of the drive ring, and each blade angle of the plurality of nozzle vanes is changed by the swing of the lever plate,wherein the drive ring is disposed between the lever plate and the nozzle mount in an axial direction, andwherein the lever plate has a configuration according to claim 10.
이 특허에 인용된 특허 (5)
-
Scholz,Georg; Jennes,Joerg, Guiding grid of variable geometry.
-
Jinnai, Yasuaki; Mikogami, Takashi; Matsumoto, Koji, Method and device for assembling and adjusting variable capacity turbine.
-
Sasaki Shoji (Mishima JPX), Turbocharger with variable nozzle mechanism.
-
Berg Paul H. (Simi Valley CA), Variable area turbine.
-
Hayashi,Noriyuki; Ibaraki,Seiichi; Jinnai,Yasuaki, Variable-throat exhaust turbocharger and method for manufacturing constituent members of variable throat mechanism.
이 특허를 인용한 특허 (6)
-
Jaenike, Lorenz, Adjustable guide vane mechanism for a turbine, turbine for an exhaust gas turbocharger and exhaust gas turbocharger.
-
Takahiro, Akita, Adjustment mechanism in VGS type turbocharger and exhaust guide assembly incorporating the same.
-
Metz, Dietmar; Mueller, Martin; Ramb, Thomas, Exhaust-gas turbocharger.
-
Niergarth, Daniel Alan; Prentice, Ian Francis; Kroger, Christopher James, Variable pitch fan blade retention system.
-
Miller, Brandon Wayne; Prentice, Ian Francis; Niergarth, Daniel Alan, Variable pitch fan for gas turbine engine and method of assembling the same.
-
Niergarth, Daniel Alan; Miller, Brandon Wayne; Bradley, Donald Albert, Variable-pitch rotor with remote counterweights.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.