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Fuel delivery pipes and methods of manufacturing the same

A manufacturing method and output pipe technology, applied in transportation and packaging, low-pressure fuel injection, fuel injection devices, etc., can solve problems such as complicated manufacturing operations, and achieve the effect of suppressing flashing

Inactive Publication Date: 2014-01-22
AISAN IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when such flash occurs, an operation process for removing the flash is required, which causes troubles in the manufacturing work

Method used

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  • Fuel delivery pipes and methods of manufacturing the same
  • Fuel delivery pipes and methods of manufacturing the same
  • Fuel delivery pipes and methods of manufacturing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Hereinafter, an embodiment of a fuel delivery pipe for carrying out the present invention will be described with reference to the drawings. In addition, below, for the sake of illustration, according to figure 1 and figure 2 The description of the up, down, front, back, left, and right directions in the figure will be used to define the up, down, front, back, left, and right directions related to the fuel delivery pipe 10 and will be described. which is, figure 1 It is a side view when observing the fuel delivery pipe 10 from the left side specified in the drawing, figure 2 It is viewed from the lower side specified in the diagram figure 1 Bottom view of the fuel delivery pipe 10. in addition, image 3 yes means figure 1 Sectional view of III-III direction.

[0033] Figure 1 ~ Figure 3 The illustrated fuel delivery pipe 10 has a structure corresponding to a not-shown four-cylinder internal combustion engine. That is, the fuel delivery pipe 10 includes: a mai...

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PUM

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Abstract

The invention provides a fuel delivery pipe and a method of manufacturing the same. The fuel delivery pipe may be designed such that, during resin forming, material flash can be suppressed at a communication part which communicates a main pipe with a distribution pipe in a resin-made fuel delivery pipe which is integrally configured by the main pipe and the distribution pipe in a manner with central lines thereof alternately crossed. A flow promotion part is arranged at a point symmetrical position which is configured the commucation forming part wherein the cores for the main pipe and the distribution pipe are butted against with each other in a forming mould, relative to a first extending central axis. The flow promotion part is configured to connected the parts on the forming mould in series, thereby raising fluidity of the forming resin passing through the said parts. Preferably, the forming resin filled into the flow promotion part makes a function of pressing the main pipe to the core of the distribution pipe, thereby raising a butting force (contact force) that the pipe core and the main pipe core are butted against with each other.

Description

technical field [0001] The present invention relates to a resin-made fuel delivery pipe for distributing fuel to cylinders of an internal combustion engine. More specifically, the present invention relates to a method of manufacturing a resin-made fuel delivery pipe and a fuel delivery pipe that are integrally arranged such that a main line and a distribution line intersect with each other at intervals in their central axes. Background technique [0002] An automobile is equipped with an internal combustion engine as a power source. Fuel is supplied to the internal combustion engine from a fuel tank. The internal combustion engine includes a plurality of cylinders, for example four cylinders. Fuel from the fuel tank is distributed to each of the plurality of cylinders and supplied. This internal combustion engine is equipped with a fuel delivery pipe for distributing fuel to each of the plurality of cylinders (for example, refer to Patent Document 1). The fuel delivery l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M55/02
CPCB29L2023/22B29D23/00F16L47/32B29C45/0046F02M2200/9015B29C45/261F02M2200/8046B29C2045/0027F16L41/02F02M69/465F02M55/025B29C45/2708Y10T137/85938
Inventor 丹羽建介永坂正晴
Owner AISAN IND CO LTD
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