Two-stage turbocharger applied to heavy-duty diesel engine
A technology of turbocharger and heavy-duty diesel engine, which is applied in the direction of machine/engine, mechanical equipment, combustion engine, etc., can solve the problems of large engine installation space, affecting the air tightness of pipelines, and large number of parts, and achieves a good space. Layout advantages, improved reliability, compact structure
Inactive Publication Date: 2013-03-20
WUXI CUMMINS TURBO TECH
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Problems solved by technology
[0002] In the application of a two-stage supercharged exhaust gas turbocharger, the exhaust gas discharged from the engine first enters the high-pressure stage turbine casing through the exhaust manifold to perform the first-stage expansion work, and then passes through the high-pressure stage volute and the low-pressure stage volute respectively. The intermediate pipeline enters the low-pressure stage turbine for the second-stage expansion work; because the system has an intermediate pipeline and V-shaped clamps or bolts used to connect the pipeline, the traditional two-stage booster connected through the intermediate pipeline The compressor system has some shortcomings, such as a large number of system components; the system requires a large engine installation space, and there are also many connection interfaces, which seriously affect the airtightness of the pipeline
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[0013] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0014] Figure 1 ~ Figure 3 As shown, it includes a low-pressure stage exhaust gas turbocharger 1, a high-pressure stage exhaust gas turbocharger 2, a first compressor 3, a low-pressure stage volute 4, a second compressor 5, a high-pressure stage volute 6, and an air inlet 7 , the first air outlet 8, the second air outlet 9, the second middle shell 10, the first middle shell 11, the mounting bracket 12, etc.
[0015] Such as figure 1 As shown, the present invention is a two-stage turbocharger, including a low-pressure stage exhaust gas turbocharger 1 and a high-pressure stage exhaust gas turbocharger 2 fixedly connected together, and the low-pressure stage exhaust gas turbocharger 1 includes The first compressor 3, the first intermediate casing 11, and the low-pressure stage volute 4 are installed together in sequence, and the high-pressur...
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The invention relates to a turbocharger, in particular to a two-stage turbocharger applied to a heavy-duty diesel engine, and belongs to the field of heat energy and power machinery structures. The two-stage turbocharger comprises a low pressure stage exhaust gas turbocharger and a high pressure stage exhaust gas turbocharger which are fixedly connected, wherein the low pressure stage exhaust gas turbocharger comprises a first gas compressor, a first middle case and a low pressure stage volute case which are mounted in sequence; and the high pressure stage exhaust gas turbocharger comprises a second gas compressor, a second middle case and a high pressure stage volute case which are mounted in sequence. According to the invention, the space for mounting a pipeline at the gas compressor end can be reduced, the structure of the whole two-stage turbocharger is more compact, and a better spatial arrangement advantage in the aspect of engine arrangement is obtained.
Description
technical field [0001] The invention relates to a turbocharger, which belongs to the structural field of thermal energy and power machinery, in particular to a two-stage turbocharger applied to a heavy-duty diesel engine. Background technique [0002] In the application of a two-stage supercharged exhaust gas turbocharger, the exhaust gas discharged from the engine first enters the high-pressure stage turbine casing through the exhaust manifold to perform the first-stage expansion work, and then passes through the high-pressure stage volute and the low-pressure stage volute respectively. The intermediate pipeline enters the low-pressure stage turbine for the second-stage expansion work; because the system has an intermediate pipeline and V-shaped clamps or bolts used to connect the pipeline, the traditional two-stage booster connected through the intermediate pipeline The compressor system has some shortcomings, such as a large number of system components; the system require...
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Login to View More IPC IPC(8): F02B37/013
CPCY02T10/144Y02T10/12
Inventor 王岩程五九任官新巩景林
Owner WUXI CUMMINS TURBO TECH