Apparatus for supplying fuel to oil injection valve of combustion engine
A fuel supply, internal combustion engine technology, applied in the field of fuel injection valve devices, can solve the problems of being unsuitable for use as pipelines, expensive to manufacture, not suitable for high-pressure pipelines, etc.
Inactive Publication Date: 2012-10-24
WINKELMANN POWERTRAIN COMPONENTS GMBH CO
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Problems solved by technology
Such high pressures require tubes of considerable wall thickness and can only be produced relatively expensively
[0003] From DE 40 39 118 A1 and US 4,457,280 longitudinally divided injection lines are known for the low-pressure range, however these injection lines are clearly not suitable for use as high-pressure lines
[0004] Bisected high-pressure accumulators are known from DE 196 47 049 A1 and DE 199 48 257 A1, which are constructed hemispherically and are not suitable for use as conduits
Method used
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[0016] A device for supplying fuel to an injection valve in an internal combustion engine is in figure 1 The whole is indicated by reference number 1 . The device 1 has a tubular high-pressure distribution line, only partially shown. The high-pressure distribution line is formed by two semi-tubular line elements 2 , 3 which are connected to each other in a pressure-tight and fluid-tight manner.
[0017] Each semi-tubular duct element 2 , 3 is preferably produced by deep drawing from sheet metal having a sheet metal thickness suitable for high-pressure applications. Preferably, the connecting sleeve 4 and the further connecting and fastening elements, such as the fastening web 5 , are integrally molded together in a single deep-drawing process. In the exemplary embodiment shown, the connection sleeve 4 and the fastening web 5 are an integral part of the semi-tubular pipe element 3 . In principle, of course, further connecting and fastening elements can also be integrally mol...
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The present invention relates to an apparatus for supplying fuel to an oil injection valve of a combustion engine, provided with a tubular high pressure distribution pipe and a containing sleeve used for an oil injection valve, and also provided with connection and fixing components when necessary, wherein the apparatus can be manufactured with a low cost, but is simultaneously used for high pressure. The apparatus is formed as follows: the high pressure distribution pipe is formed by two mutually-connected semi-tubular pipe components (2, 3) which are sealed through pressure and fluid, the pipe components are manufactured through deformation or formation, and the containing sleeve and the connection and fixing components (5) when necessary are integrally molded on the arranged semi-tubular pipe components (2, 3).
Description
technical field [0001] The invention relates to a device for supplying fuel to injection valves of an internal combustion engine, which has a tubular high-pressure distribution line, a receiving sleeve for the injection valve and optionally connecting and fastening elements. Background technique [0002] Such high-pressure lines used in modern internal combustion engines are generally produced from seamlessly drawn tubes, into which connection openings are introduced to be able to accommodate receiving sleeves for fuel injection valves. The pressure-tight and fluid-tight connection of the sleeve to the pipe body is achieved by means of high-temperature welding. Such high-pressure lines have long been used successfully in engine construction and are used, for example, in diesel engines for pressure ranges up to 2000 bar. Such high pressures require tubes of considerable wall thickness and can only be produced relatively expensively. [0003] Longitudinally divided injection...
Claims
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IPC IPC(8): F02M55/02
CPCF02M69/465F02M61/168F02M2200/8084F02M55/025
Inventor M·许特
Owner WINKELMANN POWERTRAIN COMPONENTS GMBH CO