Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pressure pipe with formed connecting head

A pressure pipe and pressure technology, which is applied in the direction of pipes/pipe joints/pipe fittings, connections that use fluid pressure for packing seals, pipes, etc., can solve cumbersome problems, reduce the formation of upset forging wrinkles, and improve the use of strength.

Active Publication Date: 2010-06-16
MAN ENERGY SOLUTIONS SA
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this prior art is the use of cumbersome stepped lugs and the inability to avoid deformation of the inner diameter by cold working with the method chosen in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pressure pipe with formed connecting head
  • Pressure pipe with formed connecting head
  • Pressure pipe with formed connecting head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] figure 2The pipe end of the fuel injection pipe with connection 1 and pipe 16 is shown. The beveled pressure shoulder 10 bears on a pressure ring 11 which is required for tightening, for example using a union nut (not shown). The envelope surface of the frusto-conical joint has both a concave arc 12 and a sealing surface 13 . The sealing surface 13 serves to seal the pressure pipe against a counterpart from the injection system (not shown). An inner cone 9 is formed in the region of the joint on the inner surface 17 of the pressure tube. The inner cone 9 forms a tube opening 19 on the top surface 18 . The pressure shoulder 10 forms an angle of greater than 90° with the outer surface of the pressure tube 16 . This angle is preferably between 100° and 110°. The loading of the pressure ring 11 is favorable in this angular range. The height H of the joint also has an effect on the formation of upset folds and should lie in the range of 0.5 to 1.0 times the outer diam...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
elongation at breakaaaaaaaaaa
Login to View More

Abstract

The fuel injection pipe (16) for IC engines has a frustro-conical connecting section (1) at one end. This has an annular shoulder (10) on the side further from the outlet (19), on to which a thrust collar (11) fits. The shoulder is at an angle of more than 90 degree to the pipe. An independent claim is included for a die for forging the pipe.

Description

technical field [0001] The invention relates to a pressure pipe with a formed joint, and in particular a high-pressure fuel injection pipe with an upset joint. Background technique [0002] The pressure line, which is the object of the invention, is used as a fuel injection line for conveying fuel on an injection system or as a hydraulic line. In order to be able to tightly connect the pressure tube to other components, the end of the pressure tube is made frusto-conical. Cold working is used in the prior art as an economical variant for producing such joints. The results of the methods known from the prior art are shown, for example, in the publications US 6,286,556 B1 and DE 103 58 373 A1 by means of fuel pipes. [0003] This prior art is also figure 1 Shown in , the frusto-conical joint and the pipe interior deformed by pressure pipe upset are shown in cross-section. In this embodiment of the prior art, the sealing of the part to which the pressure tube is to be conne...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16L19/028F02M55/02B21J13/02
CPCB21K21/12F02M55/005F16L9/00F16L17/00
Inventor L·普罗尔W·罗迪格W·瓦格纳J·温特H·亚尔辛
Owner MAN ENERGY SOLUTIONS SA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com