IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0495845
(2009-07-01)
|
등록번호 |
US-8376695
(2013-02-19)
|
발명자
/ 주소 |
- Scholz, Georg
- Hall, Richard
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
6 |
초록
▼
A vane ring assembly includes a lower vane ring (20), an upper vane ring (30), one or more guide vanes (80) positioned at least partially between the vane rings, and a spacer (50) positioned between the lower and upper vane rings (20, 30) for maintaining a distance between the lower and upper vane r
A vane ring assembly includes a lower vane ring (20), an upper vane ring (30), one or more guide vanes (80) positioned at least partially between the vane rings, and a spacer (50) positioned between the lower and upper vane rings (20, 30) for maintaining a distance between the lower and upper vane rings (20, 30). The spacer has a first end (52) with a first diameter, a second end (54) with a second diameter, and a middle section (56) with a third diameter. The third diameter is larger than the first and second diameters. The first and second ends (52, 54) of the spacer (50) are inserted at least partially into a first counter bore (22) and a second counter bore (32) formed in the lower and upper vane rings (20, 30). A nut (40) and a fastener (42) running through a central through hole (58) of the spacer (50) are used to connect the vane ring assembly to a turbocharger housing. A clearance (c) of greater than e.g. 5% of the fastener diameter is formed between an inside wall (51) of the spacer (50) an outside wall (43) of the metal fastener (42) to offset any thermal expansion or deformation.
대표청구항
▼
1. A vane ring assembly, comprising: a lower vane ring (20);an upper vane ring (30);one or more guide vanes (80) pivotably mounted at least partially between said lower and upper vane rings;one or more fasteners for fastening said upper vane ring relative to said lower vane ring;at least one spacer
1. A vane ring assembly, comprising: a lower vane ring (20);an upper vane ring (30);one or more guide vanes (80) pivotably mounted at least partially between said lower and upper vane rings;one or more fasteners for fastening said upper vane ring relative to said lower vane ring;at least one spacer (50) positioned between said lower and upper vane rings (20, 30) for maintaining a distance between said lower and upper vane rings (20, 30),wherein said spacer is a stepped spacer with a spacer body section (56) with a spacer outer diameter, and with first and second ends (52, 54) having outer diameters smaller than said spacer body section (56) outer diameter, and wherein at least said first and second ends (52, 54) of said spacer (50) are seated in first and second counter bores (22, 32) formed in said lower and upper vane rings (20, 30). 2. The vane ring assembly as in claim 1, wherein at least one of said first counter bore (22) and second counter bore (32) are stepped, and wherein the associated stepped spacer end is matingly received in said stepped counter bore. 3. The vane ring assembly as in claim 1, wherein at said first and second counter bores (22, 32) are stepped, and wherein the associated stepped spacer ends is matingly received in said stepped counter bores. 4. The vane ring assembly as in claim 1, wherein said one or more fasteners has a shank with an outer diameter, wherein said stepped spacer includes a coaxial bore with an internal diameter, wherein said fastener shank extends through said bore in said stepped spacer, and wherein said spacer bore internal diameter (DI) is at least 5% greater than said fastener shank outer diameter (DO). 5. The vane ring assembly as in claim 1, wherein said upper and lower vane rings include circular spacer bores and radially elongate fastener bores (210, 220), wherein each spacer bore receives one spacer end, and wherein each fastener bore has a fastener extending through it. 6. The vane ring assembly as in claim 5, wherein said fasteners axially secure said upper and lower vane rings to said turbine housing. 7. The vane ring assembly as in claim 6, wherein said fasteners comprise bolts (111) and nuts (43), and wherein the load of said nuts on said upper and lower vane rings permits radial thermal expansion and contraction of said vane rings along said radially elongate bores. 8. The vane ring assembly as in claim 7, further including a washer (40) arranged between the nut (44) and a vane ring surface. 9. The vane ring assembly as in claim 5, wherein said radially elongate bores are open at an outer circumference of said vane rings.
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