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Steam turbine

A technology for steam turbines and turbine casings, which is applied to steam engine devices, mechanical equipment, engine components, etc., which can solve difficult manufacturing problems and achieve the effect of simple manufacturing and optimized driving efficiency

Inactive Publication Date: 2015-10-28
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such channels with varying cross-sectional profiles are difficult to fabricate

Method used

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Embodiment Construction

[0021] figure 1 A schematic diagram of a system for waste heat utilization, in particular for energy recovery from the waste heat flow of an internal combustion engine, is shown. When the internal combustion engine is running, fuel and gas are supplied to the internal combustion engine, said fuel and gas burn under thermal effect in the combustion chamber of the internal combustion engine when the internal combustion engine is running, and move the pistons for the crankshaft connected to the pistons to generate in the cylinder block Rotational movement. The fuel injection system of the internal combustion engine is designed, for example, as a common rail injection system, and the internal combustion engine is a self-ignition internal combustion engine operated with diesel fuel. The waste heat flow of fuel and gas is discharged via the exhaust gas line 1 and guided through the evaporator 2 . The evaporator 2 is designed, for example, as a tube heat exchanger and has a plurali...

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Abstract

The invention relates to a steam turbine 5, in particular for utilizing the waste heat of an internal combustion engine, having at least one turbine housing, having a guide wheel 10 that has at least one nozzle, and having at least one rotor 6, wherein the nozzle is in the form of a duct 11 formed into the guide wheel 10. According to the invention, a steam turbine 5 is provided, the nozzles of which can be manufactured in a simple manner. This is achieved by virtue of the fact that the duct 11 has a constant width B and has a depth T that varies along the duct 11. In this way, the duct 11 can be produced by means of a single tool in a single working operation.

Description

technical field [0001] The invention relates to a steam turbine, in particular for utilization of waste heat from an internal combustion engine, comprising: at least one turbine housing; a guide wheel with at least one nozzle; and at least one impeller, wherein the nozzle is configured to be sunk to the channel in the guide wheel. [0002] Furthermore, the invention relates to a method for producing a nozzle channel of a steam turbine. Background technique [0003] Such a steam turbine is known from DE 10 2010 042 412 A1. The steam turbine is provided for the utilization of waste heat from an internal combustion engine and has conventional components in the form of a turbine housing, a guide wheel with at least two nozzles and an impeller. The lance is designed as a rectangular channel and has converging and diverging cross-sectional curves along the channel. Furthermore, the channel is arranged in the middle region of the guide wheel. Such channels with varying cross-se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D9/04
CPCF01D9/047F05D2220/31F05D2230/10F05D2250/70F01D5/12F01K23/10
Inventor T·施泰德滕S·比尔F·U·贝克特H-C·马热尔N·艾森门格尔W·施托尔珀A·温格特
Owner ROBERT BOSCH GMBH