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Method and apparatus for supplying fuel of LPG car having LPI system

A fuel and equipment technology, applied in the field of fuel supply, can solve the problems of increased manufacturing cost and complicated manufacturing process of dual-fuel vehicles

Active Publication Date: 2009-08-12
SIEMENS AUTOMOTIVE SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to the basic structure above, the manufacturing cost of dual-fuel vehicles using LPG and gasoline has increased, and the manufacturing process in them has also become more complicated

Method used

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  • Method and apparatus for supplying fuel of LPG car having LPI system
  • Method and apparatus for supplying fuel of LPG car having LPI system
  • Method and apparatus for supplying fuel of LPG car having LPI system

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Embodiment Construction

[0062] Exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0063] figure 1 is a view of a dual-fuel engine driving apparatus using gasoline and LPG according to an embodiment of the present invention, figure 2 is shown figure 1 A block diagram of the operation process of the gasoline engine control unit and the LPG engine control unit described in .

[0064] see figure 1 and figure 2 , the dual fuel engine driving apparatus using gasoline and LPG according to the embodiment of the present invention includes a fuel pump 109 , a pressure controller 115 , a fuel tank 107 , a gasoline engine control unit 103 and an engine control unit 105 . Fuel pump 109 is connected to the supply line of the fuel rail to provide liquefied fuel to injector section 117, which is attached to intake manifold 119 and has a plurality of injectors. A pressure controller 115 is connected to the return line 111 of the fuel rail. ...

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PUM

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Abstract

Disclosed is method and apparatus for supplying fuel of LPG car having LPI system. More particularly, the present invention generates a gas fuel injection signal based on a gasoline fuel injection signal and directly injects LPG fuel within a fuel tank to a combustion chamber using the generated gas fuel injection signal to drive an engine. Therefore, an engine can be easily changed, the manufacturing cost of a duel car of LPG and gasoline can be reduced, and the manufacturing process thereof can be simplified.

Description

technical field [0001] The present invention relates to a method and apparatus for fueling a liquefied petroleum gas (LPG) vehicle having a liquefied petroleum gas injection (LPI) system, and in particular to a method and apparatus for fueling, wherein the engine is fueled by LPG drive. Background technique [0002] Because liquefied petroleum gas (LPG) has a high octane number, better thermal resistance, and cheap price, LPG is used together with gasoline as an automotive fuel. [0003] LPG supplied to car engines is in liquid form. When the liquid LPG is vaporized, the fuel and air can be easily mixed and the flammability can be improved. In other words, LPG can prevent frequent knocking and eliminate phenomena such as vapor lock and percolation, compared to gasoline or light oil used in normal car engines. Therefore, the application range of LPG has grown as an alternative fuel for gasoline or diesel. [0004] An apparatus for supplying LPG supplies liquid LPG to a ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M21/02
CPCY02T10/32Y02T10/36Y02T10/30F02D19/024F02D19/061F02D19/0628F02D19/0647F02D19/0694F02M21/0254F02M21/0263
Inventor 宋镇佑秋殷植闵永基郑载玟安廷训朴永周
Owner SIEMENS AUTOMOTIVE SYST
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