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

Heat exchanger

一种换热器、换热管的技术，应用在间接换热器、换热器类型、换热器外壳等方向，能够解决增加集管重量、很难减小集管重量等问题，达到减小集管重量、重量轻、减小内部容积的效果

Inactive Publication Date: 2003-10-08
KEIHIN THERMAL TECH CORP
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to ensure sufficient pressure resistance, it is necessary to increase the thickness of the header portion 102 where the tube 101 is inserted through the inner half, which results in an increase in the weight of the header.
Therefore, it is difficult to reduce the weight of the header

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
  • Heat exchanger
  • Heat exchanger
  • Heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0058] Prepare hollow headers. The manifold comprises: an inner peripheral wall portion 10 having a substantially flattened arcuate cross-sectional shape to which pipes are connected; an outer peripheral wall portion 11 having a substantially semicircular cross-section shape, and facing the inner peripheral wall portion 10; and connecting curved peripheral wall portions 12 and 12, the connecting curved peripheral wall portions 12 and 12 are connected with the inner peripheral wall portion 10 and the outer peripheral wall portion 11, and the header satisfies the following conditions.

[0059] Then, the condenser shown in Fig. 3 was fabricated using the aforementioned hollow headers.

[0060] Condition A: r=10mm;

[0061] Condition B: Ra=60mm;

[0062] Condition C: Rb=4mm;

[0063] Condition D: h=5mm; and

[0064] Condition E: T=1.3mm

[0065] Assuming a stress of 100% developed in a normal circular header, the stress developed in this header is 163%. Therefore, in this ex...

example 2

[0068] In Example 2, the same structure as Example 1 is used, but the conditions are set as follows:

[0069] Condition A: r=7.94mm;

[0070] Condition B: Ra=50mm;

[0071] Condition C: Rb=4mm;

[0072] Condition D: h=4mm; and

[0073] Condition E: T=1.1mm

[0074] Assuming a stress of 100% developed in a normal circular header, the stress developed in this header is 146%. Therefore, in this example, it was proved that the generated stress can be suppressed to be small and sufficient pressure resistance can be obtained.

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

No PUM Login to View More

Abstract

A heat exchanger comprises a header (2) and a plurality of tubes (1) connected to the header. The manifold (2) comprises: an inner peripheral wall portion (10) having a generally flat arcuate cross-sectional shape to which the tube (1) is connected; an outer peripheral wall portion (11), the outer peripheral wall portion (11) has a substantially semicircular cross-sectional shape, the outer peripheral wall portion (11) faces the inner peripheral wall portion (10); and the inner peripheral wall portion (10) and the The curved peripheral wall portion (12) connected to the peripheral wall portion (11) is connected. The parameters of the header (2) such as the outer radius of curvature Ra of the inner peripheral wall portion (10), the outer curvature radius Rb of the connecting curved peripheral wall portion (12), and the outer curvature radius of the outer peripheral wall portion (11) fall within a specific range, This reduces the header volume and weight while ensuring sufficient pressure resistance.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 60 / 302,686, filed July 5, 2001. technical field [0003] The present invention relates to a heat exchanger suitable for use as a condenser used in automobile air conditioning systems, house air conditioning systems and the like. Background technique [0004] In recent years, so-called multi-flow heat exchangers have been widely used, for example, in automotive air-conditioning condensers. In some condensers, such as Figure 4A As shown, a header 100 having a circular cross-sectional shape is used to withstand the high pressure of the refrigerant passing through the condenser. On the other hand, if Figure 4B As shown, a joint type header formed by connecting two header halves 102 and 103 is also widely used. [0005] Incidentally, since the header does not contribute to heat exchange and forms a so-called dead space, it is desirable that the header v...

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): F28D1/053F28F9/02F28F9/18
CPCF28D1/0535F28D1/05366F28F9/02F28F9/18
Inventor 北崎聪
Owner KEIHIN THERMAL TECH CORP
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