Hydraulic transmission method and device using boat diesel engine afterheat

A marine diesel engine and hydraulic transmission technology, which is applied in the direction of machines/engines, mechanical equipment, engine components, etc., can solve problems such as unreasonable, insufficient utilization of waste heat from exhaust gas, etc., and achieve the effect of improving safety and reliability

Inactive Publication Date: 2009-10-07
SHANGHAI MARITIME UNIVERSITY
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Problems solved by technology

This makes the utilization of waste heat of exhaust gas not only insufficient, but also unreasonable

Method used

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  • Hydraulic transmission method and device using boat diesel engine afterheat

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Embodiment Construction

[0012] like figure 1 As shown, the waste gas in the exhaust gas turbocharging system of the diesel engine is led to the turbine 1 in the system through the bypass valve under the sailing condition of the ship, which drives the turbine 1 to rotate, and converts the heat energy contained in the exhaust gas into the mechanical energy of the system. Turn on the clutch 2, and the turbine 1 will drive the two-way variable pump 3 to rotate. According to the system requirements, the two-way variable pump 3 can output pressure oil to the hydraulic system in both directions to provide energy. If the system pressure is stably lower than the maximum limit pressure set by the system during the working process of the system, the system overload safety protection circuit will be closed and the system will work normally. The two-way variable pump 3 converts the energy converted by the turbine 1 into system pressure energy output, which can be respectively output to the two-way quantitative pu...

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Abstract

A hydraulic transmission method and device using boat diesel engine afterheat relates to the technical field of hydraulic transmission, in particular suitable for the utilization of waste gas afterheat for producing the boat diesel engine. Based on the principle of the hydraulic transmission, the waste gas afterheat of the boat diesel engine is used and is extracted from the bypass valve; the turbine is pushed to rotate; the hydraulic pump converts the turbine mechanical energy into the pressure energy of the hydraulic oil which respectively assists the driving dynamo and steering engine by a power distribution loop. The device includes a hydraulic system driving loop, a system oil compensating loop and a system pressure overload safety protection loop in order to fit various running working conditions of boat. The method and device can effectively use the waste gas afterheat of diesel engine in the navigation of the boat and can improve the working efficiency so as to reach the purpose of saving energy.

Description

technical field [0001] The invention relates to the technical field of hydraulic transmission, and is particularly suitable for utilization of waste heat of exhaust gas produced by marine diesel engines. Background technique [0002] With the national "energy conservation and emission reduction" to achieve sustainable development strategic goals, especially the reduction of fossil energy consumption mainly oil has been widely valued. As far as ships with large fuel oil are concerned, the exhaust energy of marine diesel engines accounts for about 18% of the total heat of fuel oil, and its usable part is also about 12%, which is about 1 / 4 of the effective power of diesel engines. How to improve the utilization rate of energy, reduce the emission of marine diesel engine exhaust, and protect the environment on which human beings live are still the focus of development. At present, the utilization of waste heat from exhaust gas of marine diesel engines is mainly to convert the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02G5/02
CPCY02T10/166Y02T10/12
Inventor 陈磊张攀
Owner SHANGHAI MARITIME UNIVERSITY
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