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

Compacted graphite iron, engine cylinder head and vehicle

a graphite iron and engine technology, applied in the field of graphite iron, engine cylinder head and vehicle, can solve the problems of insufficient and achieve excellent tensile strength and thermo-mechanical fatigue li

Inactive Publication Date: 2014-06-12
HYUNDAI MOTOR CO LTD
View PDF3 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a new type of compacted graphite iron that is suitable for use in vehicle parts such as engine cylinder heads. This new type of iron has excellent strength and fatigue life. The invention includes a method for making the iron, and also a vehicle that uses the new engine cylinder head. The new iron has a unique composition that includes specific amounts of iron, carbon, silicon, phosphorus, and other elements. This new iron has a unique structure that allows for its superior strength and fatigue life. The new engine cylinder head and vehicle made with this new iron have better performance and durability compared to previous designs.

Problems solved by technology

However, the above composition is not enough to secure the appropriate tensile strength and thermo-mechanical fatigue life.

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
  • Compacted graphite iron, engine cylinder head and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019]Hereinafter, the compacted graphite iron, the engine cylinder head and the vehicle according to preferable embodiments of the present invention now will be described in detail with reference to the accompanying drawings.

[0020]The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and / or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed it...

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
temperatureaaaaaaaaaa
tensile strengthaaaaaaaaaa
temperatureaaaaaaaaaa
Login to View More

Abstract

A compacted graphite iron having composition comprising: Fe as a major ingredient, C: of about 3.4˜4.2 wt %, Si: of about 1.5˜2.5 wt %, P: 0.10 wt % or less (not including 0), S: of about 0.10 wt % or less (not including 0), Cr: of about 0.10 wt % or less (not including 0), Mn: of about 0.1˜0.6 wt %, Cu: of about 0.2˜1.6 wt %, Sn: of about 0.1 wt % or less (not including 0), Mg: of about 0.05 wt % or less (not including 0), Mo: of about 0.05˜0.5 wt %, at least one ingredient of V: of about 0.05˜0.5 wt % and Ti: of about 0.05˜0.5 wt %, and other inevitable impurities; an engine cylinder head; and a vehicle.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims under 35 U.S.C. §119(a) the benefit of Korean Patent Application No. 10-2012-0144952 filed on Dec. 12, 2012 the entire contents of which are incorporated herein by reference.BACKGROUND[0002](a) Technical Field[0003]The present invention relates to a CGI (compacted graphite iron), which is suitable to be used to vehicle parts and the like such as engine cylinder heads, particularly to a compacted graphite iron having excellent tensile strength and thermo-mechanical fatigue life, an engine cylinder head formed with the compacted graphite iron, and a vehicle equipped with the engine cylinder head.[0004](b) Background Art[0005]Vehicle parts such as engine cylinder heads are required to have proper tensile strength and thermo-mechanical fatigue life to endure pressure and heat emitted by the engine while driving. Further, there is a need to satisfy demands for improving output and the like.[0006]Particularly, a cylinder ...

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 Applications(United States)
IPC IPC(8): C22C37/10C22C37/06
CPCC22C37/06C22C37/10
Inventor LEE, JEONG SEOPNAM, DUK HYUN
Owner HYUNDAI MOTOR CO LTD
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