Liquid ammonia direct cooling-diesel oil dual-fuel integrated hybrid power system

A hybrid power system and dual-fuel technology, applied in the direction of charging system, fuel injection device, engine components, etc., can solve the problems of complex processing of the injection system structure, improve energy utilization, reduce power consumption, and save installation space Effect

Active Publication Date: 2022-03-08
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, ammonia fuel often requires auxiliary diesel ignition and hydrogen combustion, which leads to complex processing of the injection system structure

Method used

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  • Liquid ammonia direct cooling-diesel oil dual-fuel integrated hybrid power system
  • Liquid ammonia direct cooling-diesel oil dual-fuel integrated hybrid power system
  • Liquid ammonia direct cooling-diesel oil dual-fuel integrated hybrid power system

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Embodiment Construction

[0045] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0046] combine Figure 1-17 , figure 1 It is a schematic diagram of the overall structure of the present invention, and the liquid ammonia direct cooling-diesel dual-fuel integrated fuel injection system includes a diesel liquid ammonia supply system, a diesel liquid ammonia injection system and a liquid ammonia heat management system. The liquid ammonia supply system consists of a liquid ammonia storage tank 1, a low-pressure pump and a motor 2, an overflow valve 3, a safety valve 4, a temperature controller 5, and an ammonia inlet pipe 6. The liquid ammonia injection system consists of an electronically controlled unit pump 7, a high-pressure oil pipe 8 and a diesel booster-liquid ammonia direct injection dual-fuel injector 9. The electronically controlled unit pump controlled by thermal management is used for boosting to realize the efficient supply of high-p...

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Abstract

The invention aims to provide a liquid ammonia direct cooling-diesel oil dual-fuel integrated hybrid power system which comprises an electronic unit pump and a diesel oil pressurizing-liquid ammonia direct injection dual-fuel injector, and the diesel oil pressurizing-liquid ammonia direct injection dual-fuel injector comprises an injector body, a liquid ammonia injection part and a diesel oil injection part. The liquid ammonia injection part and the diesel oil injection part are located in the injector body, and the liquid ammonia injection part comprises a pressurization module, a first pressure storage resonance current limiting module, a super-hysteresis electromagnetic control actuator and a phase change controllable super-atomization nozzle module which are arranged from top to bottom. The diesel oil injection part comprises a second pressure accumulation resonance current limiting module, an auxiliary pressurization module, a pressure balance type electromagnetic control actuator and a needle valve eccentric self-adjusting nozzle which are arranged from top to bottom. Two control modes can be adopted, namely a mode of pressurizing liquid ammonia with liquid ammonia and a mode of pressurizing liquid ammonia with diesel oil. In the pressurization mode, the injection pressure and the injection rate of fuel injection are influenced by the pressurization mode, and controllable injection between cycles can be achieved.

Description

technical field [0001] The invention relates to an injection device, in particular to a dual-fuel integrated injection device. Background technique [0002] Among the many ways to achieve low carbon, only starting from fuel can fundamentally solve the problem of carbon emissions. Ammonia is one of the typical low-carbon fuels. Compared with hydrogen fuel, it has higher energy storage, is easier to store and transport, and has a mature supply chain. It is one of the main low-carbon alternative energy sources. At present, there is no mature ammonia fuel power plant in the world. The existing ammonia fuel engines have problems such as low volume efficiency, poor combustion effect, low thermal efficiency and energy utilization rate, which limit their popularization and application. [0003] In order to achieve full combustion of ammonia fuel, high-pressure direct injection is required instead of port injection. At the same time, because the required injection pressure (60MPa) ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M43/04F02M51/06F02M55/02F02M55/04F02M61/04F02M61/10
CPCF02M43/04F02M55/025F02M55/04F02M61/04F02M51/0614F02M51/0625F02M61/10
Inventor 魏云鹏都坤范立云吴岳霖许聪聪张瀚文许菁
Owner HARBIN ENG UNIV
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