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Large-scale turbocharged diesel engine with energy recovery device

A diesel engine and turbocharging technology, applied to engine components, combustion engines, machines/engines, etc., can solve the problem of converting energy that cannot be recovered into a more useful form, reducing the response of the turbocharger to accelerate, and the overall structure is huge and other problems, to achieve the effect of reducing the heat exchange area, increasing the gas velocity, and reducing the amount of piping

Active Publication Date: 2013-01-30
曼能解决方案(曼能解决方案德国股份公司)分公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, by placing a boiler between the exhaust receiver and the turbine of the turbocharger, the overall structure becomes relatively large and complex
Additionally, an increase in the length of the flow path between the exhaust valve and the turbocharger reduces the turbocharger's response to acceleration
In addition, such engines only recover thermal energy and cannot convert the recovered energy into more useful forms of energy, such as rotational energy or electrical energy

Method used

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  • Large-scale turbocharged diesel engine with energy recovery device
  • Large-scale turbocharged diesel engine with energy recovery device
  • Large-scale turbocharged diesel engine with energy recovery device

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Embodiment Construction

[0052] In the following detailed description, a large turbocharged diesel engine in the form of a large two-stroke diesel engine according to the invention will be described by means of a preferred embodiment.

[0053] The construction and operation of large turbocharged diesel engines, such as large two-stroke diesel engines of the crosshead type, are well known and need not be further described herein. A detailed description regarding boost operation and the exhaust system is provided below.

[0054] figure 1 A first embodiment of the upper region of a large two-stroke diesel engine 1 according to the invention is shown. The engine is provided with a plurality of cylinders arranged in-line alongside each other. Each cylinder is provided with an exhaust valve (not shown) associated with the cylinder head. The exhaust passage can be opened or closed by an exhaust valve. The manifold connects the corresponding exhaust channel to the exhaust receiver 3 . The exhaust receive...

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Abstract

A large-scale turbocharged diesel engine comprises exhaust boilers (23) and a power turbine (31), wherein the exhaust boilers (23) are used for recovering energy in exhausted gas. One of the exhaust boilers is a part of an integral body of an exhaust receiver (3). Part of exhaust in upstream of a turbocharger turbine (6) is distributed to the power turbine. The large-scale turbocharged diesel engine comprises a preheating boiler (20) arranged on the low-pressure side of the turbocharger turbine and an overheating boiler (23) arranged on the high-pressure side of the turbocharger turbine. The large-scale turbocharged diesel engine can run in scavenge air mode highly humidified to increase recoverable energy in the exhaust. The large-scale turbocharged diesel engine can also be utilized as a heat pump to enable the temperature of exhaust leaving the engine to be lower than an environmental temperature.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 200680054182.4 filed on April 12, 2006, with the applicant being an associated company of MAN Diesel & Turbine AG and MAN Diesel & Turbine Europe AG. technical field [0002] The present invention relates to a large turbocharged diesel engine with one or more exhaust gas heating boilers, and in particular to a large turbocharged diesel engine provided with a power turbine driven by a turbine from the turbocharger Exhaust drive from upstream split. Background technique [0003] EP0434419 discloses a large two-stroke turbocharged diesel engine in which heat energy in the exhaust gas is recovered by a combination of boilers on the low pressure side of the turbocharger and boilers on the high pressure side of the turbocharger. At low engine loads, the recovery of heat energy from the exhaust gas prior to introduction to the turbocharger is reduced by directing a percentage of the exhaust gas di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K23/06F01N5/02F02G5/02F22B1/18
CPCY02T10/166Y02T10/16Y02E20/14Y02T10/12
Inventor 尼尔斯·谢姆楚普
Owner 曼能解决方案(曼能解决方案德国股份公司)分公司
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