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Gas ejection assembly, operation method of gas assembly and internal combustion engine

A technology of gas injection and operation method, applied in the direction of internal combustion piston engine, combustion engine, gaseous engine fuel, etc., can solve very troublesome and expensive problems, and achieve the effect of simple cost

Active Publication Date: 2016-12-21
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to be able to guarantee the required tightness, this requires special, very complex and thus expensive measures

Method used

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  • Gas ejection assembly, operation method of gas assembly and internal combustion engine
  • Gas ejection assembly, operation method of gas assembly and internal combustion engine
  • Gas ejection assembly, operation method of gas assembly and internal combustion engine

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Embodiment Construction

[0025] The following will refer to the attached figure 1 to 3 describe an embodiment of the gas injection assembly 100 according to the present invention in detail.

[0026] figure 1 A first embodiment of a gas injection assembly 100 is shown in schematic block diagram form.

[0027] A plurality of gas injectors 1 are hydrodynamically coupled to a common storage and distribution line 14 . On the other hand, each gas injector 1 is fluid-dynamically coupled to the combustion chamber 6 of the corresponding cylinder 18 of the internal combustion engine 8 .

[0028] The injector 1 is designed for the controlled introduction of the gaseous fuel 20 present in the storage and distribution line 14 into the combustion chamber 6 of the respective cylinder 18 by means of direct injection. As an alternative to this, provision can also be made to spray in via the suction line or indirectly via the suction line.

[0029] Each cylinder 18 constitutes, on the one hand, a combustion chamber...

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PUM

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Abstract

The invention relates to a gas ejection assembly (100), an operation method of an internal combustion engine (8) and the internal combustion engine (8) with the gas ejection assembly (100). The method comprises following steps: cutting off and closing a pressure regulator (16) after the internal combustion engine (8) is shut down such that no gaseous fuel (20) no longer reaches by a gas tank (4) in a storage and distribution pipeline (14); (ii) making the internal combustion engine (8) continuously operate within an operation interval after the internal combustion engine (8) is shut down on the condition that the pressure regulator (16) is shut down and closed; (iii) enabling gaseous fuel (20) to be introduced into a combustion chamber (6) of the internal combustion engine (8) through the storage and distribution pipeline (14) and burns in the combustion chamber such that the quantity of gaseous fuel (20) in the storage and distribution pipeline (14) and gas pressure are on the decrease.

Description

technical field [0001] The invention relates to a gas injection unit, a method for operating the gas injection unit and an internal combustion engine. The invention relates in particular to a gas injection assembly with a gas injector for injecting gaseous fuel into a combustion chamber of an internal combustion engine, a method for operating an internal combustion engine with a gas injection assembly according to the invention and a combustion chamber with and an internal combustion engine with a gas injection assembly according to the invention. Background technique [0002] In internal combustion engines and especially in the motor vehicle sector, gaseous fuels such as natural gas or hydrogen are also used in addition to liquid fuels. In this case, the gaseous fuel is placed under pressure, for example at 200×10 5 Pa in a storage container. The gaseous fuel is delivered in a pressure-regulated manner from the storage container to a storage and distribution line by mean...

Claims

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Application Information

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IPC IPC(8): F02M21/02F02D19/02
CPCF02D19/021F02M21/0239F02M21/0248F02M21/0275F02B43/00F02D19/022F02D19/024F02D19/025F02D41/0027F02D41/042F02D41/401F02D2041/389F02D2200/0602F02D2250/31F02M21/0242F02M21/0245Y02T10/30Y02T10/40
Inventor D·施米德尔T·兰登费尔德
Owner ROBERT BOSCH GMBH