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Injector system for combustion engines operated on fuel, in particular heavy oil

A technology of injection system and internal combustion engine, applied in fuel injection device, charging system, liquid fuel feeder, etc., can solve problems such as failure and damaged operation

Active Publication Date: 2011-09-28
L'ORANGE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The risk associated with this is that fuel, mainly heavy oil, can get into one or more combustion chambers during the shutdown of the internal combustion engine, which can lead to serious damage and related malfunctions when starting the internal combustion engine

Method used

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  • Injector system for combustion engines operated on fuel, in particular heavy oil
  • Injector system for combustion engines operated on fuel, in particular heavy oil
  • Injector system for combustion engines operated on fuel, in particular heavy oil

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Embodiment Construction

[0016] Given that the injection systems shown in the schematic illustrations have basically the same structure, the accompanying figure 1 and 2 In the description, the same reference numerals are used for the same components, wherein 1 designates an internal combustion engine, wherein only a part of a combustion chamber 2 with one cylinder is shown. Generally, the internal combustion engine 1 is of multi-cylinder construction and a corresponding number of injectors 3 are also provided, analogously to the injectors 3 for the combustion chamber 2 , which are connected in parallel to the injectors 3 shown here to the injector 3 indicated as a whole by 4 in the injection system.

[0017] The injection system 4 shows its most important elements and starts from a fuel tank 5 for heavy oil provided as fuel, comprising a pre-delivery pump 7 as a low-pressure source drawn from the fuel tank 5 through a conduit 6, which communicates with the The high pressure pump 9 of the high pressu...

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PUM

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Abstract

Injection system comprises a unit (19) lying in a connection of a high pressure storage unit (13) to an injector (3) to release a feed to the injector when the pressure in the high pressure storage unit has exceeded a threshold value lying over the rinsing pressure. Preferred Features: The threshold value lies in pressure region lying at the lower region of the operating pressure. A local pressure storage unit is assigned to the injector.

Description

technical field [0001] The invention relates to an injection system for an internal combustion engine operating with fuel, in particular heavy oil, according to the preamble of claim 1 . Background technique [0002] An injection system of the above-mentioned type is known from DE19645243C2. Heavy oils are highly viscous at ambient temperature and have an approximate tar-like consistency. Accordingly, it needs to be heated to liquefy it so that it can then be sprayed. [0003] Correspondingly, the heavy oil must also be maintained at a temperature corresponding to this liquefaction temperature in the injection system in order to maintain the operability of the system. As far as the idle state of the internal combustion engine is concerned, that is to say the corresponding standstill state of the internal combustion engine, this means that the components associated with the fuel system, including the fuel tank, are kept at a corresponding temperature, which is usually done ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M63/00F02M37/04F02M47/02
CPCF02M63/0225F02M53/02
Inventor W·谢贝C·森格哈斯
Owner L'ORANGE GMBH