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

Intake valve for engine

An engine and intake valve technology, applied in the direction of engine components, machines/engines, lift valves, etc., can solve the problems of insufficient progress in the thermal insulation structure of thermal insulation materials, and achieve high mechanical properties, high heat resistance, and improved efficiency. Effect

Inactive Publication Date: 2015-11-11
HYUNDAI MOTOR CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In particular, if the release of the heat generated in the internal combustion engine to the outside along the wall of the internal combustion engine is minimized, the efficiency of the internal combustion engine and the fuel efficiency of the vehicle can be improved, but it is possible to use it for a long time in an internal combustion engine to which high temperature and high pressure conditions are repeatedly applied Sufficient progress has not been made in research on insulating materials and insulating structures for maintenance

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
  • Intake valve for engine
  • Intake valve for engine
  • Intake valve for engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 3

[0094] (1) Production of heat insulating coating composition

[0095] Porous silica airgel (specific surface area: about 500cm2) dispersed in ethanol 3 / g) and polyamideimide resin (product manufactured by Solvay SA, weight average molecular weight: about 11,000) dispersed in xylene were injected into a 20 g reactor, zirconia beads (440 g) were added thereto, and heated at room temperature Ball milling is performed at a speed of 150 to 300 rpm under conditions of temperature and normal pressure to produce a thermal insulation coating composition (coating solution).

[0096] In this case, the weight ratio of the porous silica airgel based on the polyamideimide resin is as described in Table 1 below.

[0097] (2) Formation of thermal insulation coating layer

[0098] The resulting thermal insulation coating composition was applied to parts for vehicle engines by spraying. In addition, the thermal insulation coating composition is applied to the part, and the primary semi-dryi...

experiment Embodiment 1

[0109] 1. Experimental Example 1: Measurement of Thermal Conductivity

[0110] The thermal conductivity of the coating layers on the parts from the examples and comparative examples was measured by thermal diffusion measurement based on ASTM E1461 at room temperature and pressure conditions using the laser flash method.

experiment Embodiment 2

[0111] 2. Experimental Example 2: Measurement of heat capacity

[0112] The heat capacity determined by measuring the specific heat of the coating layer on the parts obtained from Examples and Comparative Examples under room temperature conditions using a DSC apparatus based on ASTM E1269 and using sapphire as a control.

[0113] (Table 1)

[0114]

[0115] As described in Table 1, it was confirmed that the heat-insulating coating layers obtained in Examples 1 to 3 had 1240 KJ / m in a thickness of 120 to 200 μm 3 Heat capacity of K or less and thermal conductivity of 0.54 W / m or less. Accordingly, the heat-insulating coating layers obtained in Examples 1 to 3 can be applied to coatings of components of an internal combustion engine to reduce heat energy released to the outside and thereby improve the efficiency of the internal combustion engine and the fuel efficiency of vehicles.

[0116] Additionally, if figure 2 As shown in , it could be confirmed that in the heat ins...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
porosityaaaaaaaaaa
Login to View More

Abstract

An intake valve for an engine supplies an intake gas to a combustion chamber of the engine, and an adiabatic coating layer including a polyamideimide resin and an aerogel dispersed in the polyamideimide resin and having thermal conductivity of 0.60 W / m or less may be formed on a surface portion that comes into contact with a flame during operation of the engine.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit under 35 U.S.C. §119(a) to Korean Patent Application No. 10-2014-0051621 filed with the Korean Intellectual Property Office on April 29, 2014, which is hereby incorporated by reference in its entirety . technical field [0003] The present invention relates to engines for vehicles, and more particularly, to intake valves for supplying intake air to combustion chambers of the engines. Background technique [0004] Generally, an internal combustion engine refers to an engine in which fuel gas generated by burning fuel directly acts on pistons, turbine blades, etc. to convert heat energy of fuel into mechanical work. [0005] In many contexts, an internal combustion engine is a reciprocating engine in which a mixture of fuel and air is ignited in a cylinder, causing an explosion and thus moving a piston, but gas turbines, jet engines, rocket engines, etc. are also internal com...

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): F01L3/02C09D179/08C09D7/12
CPCF01L3/04F01L3/20F01L3/12F01L2820/01F01L2301/02F01L2303/00F01L3/02F01L3/14F01L3/22
Inventor 李昇祐金知湖白洪吉徐知延李桐圭金甫炅吕寅雄朴珉奎
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