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US 2006/0124110 A1Published application
Connection of two coaxially in-line elements in a fuel supply system of an internal combustion engine
OwnerJochen Schoefflerinventor
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OwnerJochen Schoefflerinventor
Estimating the term…
The invention relates to a connection of two coaxially in-line elements in a fuel supply system of an internal combustion engine, in which the first element is preferably a receiving bush of a fuel distributor line with a guide opening, and the second element, embodied as a pressure regulating valve or pressure chamber, is insertable by a guide portion into the guide opening of the receiving bush, which facing one another in a wall has two retention openings, aligned both with one another and with a retention groove in the pressure regulating valve, which openings a U-shaped retention clamp projects through with its legs and in so doing fixes the position of the first element and second element relative to one another, which elements, at least in the region of the retention clamp have portions of stainless steel. Alternatively, the first element may be an injection valve, which is inserted by one end into a plug connection, forming the second element, of the fuel distributor line, where it is fixed by means of a securing clamp, and the injection valve and the plug connection, at least in the region of the securing clamp, have portions of stainless steel. The invention provides that the retention clamp is formed by a spring wire and the securing clamp is formed of a spring band of stainless steel, in order to prevent contact corrosion.
In a connection of two coaxially in-line elements in a fuel supply system of an internal combustion engine, in which the first element has a guide sleeve, and the second element is insertable by a guide portion into the guide sleeve of the first element, which first element has, facing one another in a wall, two retention openings aligned with one another and with a retention groove in the second element, which openings a U-shaped retention clamp projects through with its legs and in so doing fixes the position of the first element and second element relative to one another, which elements, at least in the region of the retention clamp have portions of stainless steel, wherein the retention clamp is formed by a spring wire of stainless steel and the portions of the first element and the second element, at least in the region of the retention clamp, and the retention clamp comprise materials of the same type, to avoid electrochemical reactions between the retention clamp and the portions of the first element and the second element in the region of the retention clamp.
In a connection of two coaxially in-line elements in a fuel supply system of an internal combustion engine, in which the first element is an injection valve, which is inserted by one end into a plug connection, forming the second element, of a fuel distributor line and is fixed there by means of a securing clamp, and the injection valve and the plug connection, at least in the region of the securing clamp, have portions of stainless steel, wherein the securing clamp comprises stainless steel spring band and the portions of the injection valve and of the plug connection, at least in the region of the securing clamp, and the securing clamp comprise materials of the same type, to avoid electrochemical reactions between the securing clamp and the portions of the injection valve and of the plug connection in the region of the securing clamp.
Dependencies are inferred from the claim text.