Large two-stroke compression-ignited internal combustion engine with dual fuel systems

A technology for internal combustion engines and compression ignition, applied to internal combustion piston engines, combustion engines, motor-driven engines, etc., can solve the problems of increasing the initial cost of the engine, increasing the complexity and maintenance cost of the engine, and achieving the goal of reducing cost and complexity Effect

Active Publication Date: 2019-01-29
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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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

this need for two separate fuel supplies and injection systems significantly increases the initial cost of building the engine, and increases engine complexity and maintenance costs

Method used

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  • Large two-stroke compression-ignited internal combustion engine with dual fuel systems
  • Large two-stroke compression-ignited internal combustion engine with dual fuel systems
  • Large two-stroke compression-ignited internal combustion engine with dual fuel systems

Examples

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Embodiment Construction

[0047] In the following detailed description, a fuel supply system for a large two-stroke low-speed turbocharged compression ignition internal combustion engine 9 with a crosshead will be described with reference to an exemplary embodiment. figure 1 A large low-speed turbocharged two-stroke diesel engine 9 with steering wheels 7 and a crosshead is shown. In this exemplary embodiment, the engine has six in-line cylinders. A large low-speed turbocharged two-stroke diesel engine usually has between four and fourteen in-line cylinders, which are carried by a cylinder frame carried by the engine frame 6. The engine 9 may be used, for example, as a main engine in a ship or as a stationary engine for operating a generator in a power station. The total output of the engine may be in the range of 1,000 kW to 110,000 kW, for example.

[0048] In this exemplary embodiment, the engine 9 is a two-stroke single-flow type compression ignition engine having a scavenging port at the lower region...

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Abstract

The invention relates to a crosshead type large two-stroke turbocharged compression ignition multi-cylinder internal combustion engine (9). The engine (9) includes a first fuel supply and injection system (52) for delivering a first type of fuel to a cylinder (1) of the engine and including a hydraulically driven pump (43) for pressurizing the first type of fuel and / or a supercharger; a second fuel supply and injection system (53) for delivering a second type of fuel to the cylinders of the engine, and including a hydraulically driven pump for pressurizing the second type of fuel and / or the compressor (39); and the hydraulic pumping station (22) includes a plurality of mechanically driven hydraulic pumps (24, 25) that are driven by a power output from the engine. The engine is configured to selectively operate with a first fuel or a second fuel. The hydraulic pumping station (22) is configured to supply hydraulic power to the first fuel supply and injection system (52) when the engineis operating with the first fuel, and the hydraulic pumping station (22) is configured to use the second when the engine is used The hydraulic power is supplied to the second fuel supply and injectionsystem (53) during fuel operation.

Description

Technical field [0001] The present disclosure relates to a large two-stroke compression ignition internal combustion engine with a dual fuel system. Background technique [0002] The large two-stroke single-flow turbocharged compression ignition crosshead internal combustion engine is usually used as the propulsion system of large ships or the prime mover of power plants. The absolute size, weight, and power output make them completely different from ordinary internal combustion engines, and they classify large two-stroke turbocharged compression ignition internal combustion engines into one category for themselves. [0003] Large two-stroke compression ignition internal combustion engines generally operate with liquid fuels such as, for example, fuel oil or heavy fuel oil. However, increasing attention to the environment has led to the development of alternative fuels such as natural gas, petroleum gas, methanol, ethanol, coal slurry, petroleum coke, etc. Gas is usually stored i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M43/02F02D19/06F02D19/08
CPCF02D19/0684F02D19/081F02M43/02B63H21/14F02D19/06Y02T10/12Y02T10/30Y02T70/5218F02B75/02F02B2075/025F02M37/0041F02M47/025
Inventor 约翰·卡尔托弗约恩·S·安德森波尔·岑克尔
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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