Turbos and turbochargers
A turbine and turbine rotor technology, applied to gas turbine devices, machines/engines, combustion engines, etc., can solve problems such as difficulty in disassembly, access to turbine rotors, complex structure of the gas inlet shell, etc., and achieve the effect of simple structure and excellent maintainability
Active Publication Date: 2019-09-17
MITSUBISHI HEAVY IND LTD
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Problems solved by technology
[0012] On the other hand, in Patent Document 1 image 3 and Figure 4 In the turbine of the turbocharger described, the structure of the gas inlet housing (77, 107) also makes it difficult to approach the turbine rotor during maintenance of the turbine.
In addition, the structure of the gas inlet housing is complicated, so it is difficult to disassemble, and there is room for improvement in terms of maintainability
Method used
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[0043] Below, while referring to the attached Figure 1 Several embodiments of the present invention will be described. However, the dimensions, materials, shapes, and relative arrangements of the components described in the embodiments or shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative examples.
[0044] For example, expressions such as "towards a certain direction", "along a certain direction", "parallel", "orthogonal", "center", "concentric" or "coaxial", etc. indicating a relative or absolute arrangement not only indicate Strictly performing such an arrangement also means a state of relative displacement with a tolerance or an angle and a distance to the extent that the same function is obtained.
[0045] For example, expressions such as "same", "equal", and "uniform" that indicate the state of equality of things not only indicate a state of strict equality, but also indicate a state where there is a toleranc...
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A turbine, wherein: a turbine nozzle includes a ring-shaped partition plate for forming an inside nozzle channel in the interval between the partition plate and the nozzle inner ring, and forming an outside nozzle channel in the interval between the partition plate and the nozzle outer ring; an intake-side casing includes a cylindrical first casing, includes a second casing for forming a first channel that guides exhaust gas to the inside nozzle channel and is formed between the first casing and the second casing, and forming a second channel that guides the exhaust gas to the outside nozzle channel and is formed on the outer-circumferential side of the first channel, and also includes a bypass pipe connected to the first channel on one side thereof via a first opening provided on the outer-circumferential surface of the second casing, and connected to the second channel on the other side thereof via a second opening provided on the outer-circumferential surface of the second casing; and the bypass pipe is provided with a valve.
Description
technical field [0001] The present invention relates to turbines and turbochargers. Background technique [0002] As one method for improving the thermal efficiency of an internal combustion engine, a turbocharger is known. Patent Document 1 discloses a turbocharger including a turbine driven by exhaust gas discharged from an internal combustion engine. [0003] In Patent Document 1 Figure 1 ~ Figure 4 In the turbine of the shown turbocharger, partition walls (42, 81) are provided between the inner peripheral part (25a) and the outer peripheral part (25b) of the turbine nozzle (25). [0004] In, for example, Patent Document 1's figure 1 and figure 2 In the turbine of the turbocharger shown, the exhaust gas from the exhaust flow path (26) is guided to the outer peripheral side of the partition wall (42) in the turbine nozzle, and the exhaust gas from the exhaust flow path (36) is guided to To the inner peripheral side of the next door. In this structure, when the on-o...
Claims
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IPC IPC(8): F02B39/00F01D17/14F01D25/24F02B37/24F02C7/00F02C9/16
CPCF01D17/14F01D25/24F02B37/24F02B39/00F02C7/00F02C9/16Y02T10/12
Inventor 白石启一
Owner MITSUBISHI HEAVY IND LTD