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

Cast part and insert for such a cast part

A technology of inserts and castings, used in engine components, machines/engines, mechanical equipment, etc., to promote isolation, reduce thermal conductivity, and enhance thermal insulation

Active Publication Date: 2016-09-14
NEMAK S A B DE
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The practical use of this solution creates special challenges, namely that the coating must on the one hand withstand the mechanical and thermal loads that occur during operation and on the other hand must allow Machining on sections adjacent to coated surface sections

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
  • Cast part and insert for such a cast part
  • Cast part and insert for such a cast part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0065] A cylinder head 1 for a gasoline or diesel engine, cast from the aluminum casting material normally used for this purpose (for example AlSi alloy), has a planar support surface 2 by means of which the cylinder head passes through the necessary A sometimes central piston head seal, not shown here, is placed on the engine block, likewise not shown here, of the respective internal combustion engine. Here, the internal combustion engine has combustion chambers arranged in a row and a piston, likewise not visible here, which moves up and down in it.

[0066] Corresponding to the number of cylinders of the internal combustion engine, a plurality of curved recesses 3 are formed in the bearing surface 2 , which form an upper closure of the combustion chamber of the internal combustion engine in the stroke direction of the piston.

[0067] An inlet channel 5 leading from the longitudinal side 4' (inlet side) of the cylinder head 1 respectively opens into the recess 3, through wh...

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
particle sizeaaaaaaaaaa
lengthaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a cast part (1) which is cast from a casting material and into which a channel (6) is formed through which gas flows during use of the cast part, said channel (6) being at least partly delimited by a separately manufactured metal insert (10) that is cast into the cast part (1). In order for such a cast part (1) to withstand extreme thermal and mechanical loads in the region of its gas-carrying channel, at least portions of the insert (10) are coated with a glaze or enamel coat (13,15) on its inner face (14) associated with the gas and on its outer face (12) associated with the casting material.

Description

technical field [0001] The invention relates to a casting, which is cast from a casting material and in which channels are formed in the casting through which a gas flows during operation, wherein the channels pass at least in sections through inserts which are separately prefabricated and cast into the casting pieces around. Background technique [0002] Such castings are known, for example, from DE 2 602 434 A1. The casting in question is a cylinder head for an internal combustion engine cast from an aluminum alloy. The exhaust duct of the cylinder head is surrounded here by a tubular insert made of sheet metal cast into the cylinder head. [0003] The enclosing of the exhaust gas channel is carried out in known cylinder heads in such a way that there is no direct heat-conducting contact at least in sections between the casting material and the sheet metal of the insert. In this way, on the one hand, the Al casting material is insulated from the hot exhaust gases which ...

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(China)
IPC IPC(8): F02F1/42F02B77/04
CPCF02F1/4271F02B77/04C03C8/14C03C2207/08C23D5/02F01D25/24F02B37/00F02F1/24F02F2001/008F05D2220/40F05D2300/611
Inventor 亨宁·梅施纳罗尔夫·戈施安妮特·布雷特施奈德沃尔夫冈·屈恩
Owner NEMAK S A B DE
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