Fuel distribution strip and method of manufacture
A fuel distribution and fuel injection technology, applied in the directions of fuel injection control, low pressure fuel injection, low pressure fuel injection, etc., can solve the problems of cost, expensive manufacturing process, and deep drilling.
Active Publication Date: 2020-11-03
TI AUTOMOTIVE HEIDELBERG
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
But this results in the need for at least one hole per attachment nipple in the manufacturing process in order to create the connecting channel
Thus, based on the minimum length required for attaching the nozzle, complex deep drilling is required
The deep drilling is complex, in particular due to the high tolerance requirements in terms of position and diameter, which makes the production process relatively more expensive
Method used
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Embodiment Construction
[0026] exist figure 1 shows the base pipe 1 of the fuel distribution strip according to the invention. The base pipe 1 has fuel channels 2 extending in the longitudinal direction of the base pipe 1 . A total of four outlet openings 3 with a diameter of, for example, 4 mm branch off from the fuel channel 2 . It cannot be seen from the perspective view that there are also access openings on the rear side of the substrate tube 1 . The base pipe 1 is made of austenitic steel and has, for example, a wall thickness of 3 mm and an exemplary inner diameter of 20 mm.
[0027] exist figure 2 can be seen in the connection element 4, which is mounted to the figure 1 on base pipe 1 in In this case, each outlet opening 3 of the base pipe 1 is assigned an attachment socket 6 . The attachment socket 6 fluidly connects the outlet opening 3 and thus the fuel channel 2 via a connecting channel 7 to the corresponding nozzle, not shown. Each attachment socket 6 is assigned a connection pip...
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The invention relates to a fuel distribution strip for fuel injection of internal combustion engines, in particular gasoline engines, in motor vehicles. The fuel distribution strip includes a base tube having fuel channels extending in a longitudinal direction of the base tube. The base pipe includes at least two discharge ports branching from the fuel passage. A connecting element is arranged on the base pipe, the connecting element having a contact wall which bears against the base pipe. The connecting element is connected to the base pipe in a materially bonded manner and comprises at least two attachment sockets. The attachment sockets each have a connecting channel for fluidly connecting each outlet opening to each nozzle, the connecting element has two sides which extend parallel to the longitudinal axis of the base pipe and form a Against a part of the wall, the longitudinal axis of at least one of the connecting channels or the attachment stub lies in a plane with the longitudinal axis of the fuel channel. The invention also relates to a method for producing a fuel distribution strip.
Description
technical field [0001] The invention relates to a fuel distribution strip for fuel injection of internal combustion engines, in particular gasoline engines, in motor vehicles. The invention also relates to a method for manufacturing the fuel distribution strip. Background technique [0002] Fuel distribution strips for direct gasoline injection are basically known from practice. These fuel distribution strips comprise a tubular element with fuel passages from which typically three, four or more outlet openings branch off. The outlet openings are each fluidically connected to a nozzle. The fuel distribution rail also includes access channels for delivering fuel into the fuel distribution rail. [0003] In this case, the fluid connection of the outlet openings to the corresponding nozzles is complex. It is therefore known in practice first of all to provide a base pipe which forms the fuel channels and then to produce the outlet opening by means of drilling along the base ...
Claims
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IPC IPC(8): F02M69/46
CPCF02M69/465F02M55/025F02M61/168F02M2200/80F02M2200/8084F02M55/004F02M2200/8069
Inventor M·卡姆巴克什U·菲德勒
Owner TI AUTOMOTIVE HEIDELBERG