marine diesel engine

A diesel engine and engine technology, applied in the direction of combustion engines, engine components, machines/engines, etc., can solve the problems of large piping structure, complex opening and closing control of switching valves, and complexity, and achieve the effect of simple structure

CN111108272BActive Publication Date: 2022-03-25JAPAN ENGINE CORP
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-03-25

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

A marine diesel engine according to an embodiment of the present invention has an engine body that burns fuel to generate propulsion for a ship, a first supercharger and a second supercharger that rotate a compressor using exhaust gas discharged from the engine main body, A flow pipe through which combustion gas flows from the compressor of the first supercharger to the compressor of the second supercharger, and an auxiliary blower. The first supercharger sucks and compresses combustion gas from the outside. The second supercharger further compresses the combustion gas compressed by the first supercharger and sends it to the engine main body. The auxiliary blower is provided in the flow pipe described above, and assists the delivery of the compressed combustion gas to the engine main body.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a marine diesel engine mounted on a ship. Background technique

[0002] Conventionally, in the field of ships, marine diesel engines employing a plurality of turbochargers such as two-stage superchargers have been known as means for improving the output and fuel efficiency of the engine main body. For example, Patent Document 1 discloses a diesel engine of a two-stage supercharging method. In this diesel engine, a high-pressure stage and a low-pressure Each supercharger of the stage includes a supercharger (turbocharger) configured to be able to rotate a turbine together with a compressor by utilizing the pressure of exhaust gas discharged from the engine body. In these superchargers, each turbine is connected in series to the engine main body via exhaust gas discharge piping. Each of the compressors is connected in series to the engine main body via a combustion gas delivery pipe. In addition, in the diesel engine d...

Examples

Embodiment Construction

[0019] Hereinafter, preferred embodiments of the marine diesel engine of the present invention will be described with reference to the drawings. In addition, this invention is not limited based on this embodiment. In addition, the drawings are schematic, and it should be noted that the dimensional relationship of each element, the ratio of each element, and the like may differ from actual ones. Between the drawings, there may be cases where parts with different dimensional relationships and ratios are included. In addition, in each drawing, the same code|symbol is attached|subjected to the part of the same structure.

[0020] (Structure of Marine Diesel Engine)

[0021] Hereinafter, first, the schematic structure of the engine main body of the marine diesel engine according to the embodiment of the present invention will be described, and then the overall structure of the marine diesel engine will be described.

[0022] figure 1 It is a schematic diagram showing an engine ...