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Heat Exchanger And Refrigeration Cycle Device Using Heat Exchanger
Abstract: A heat exchanger has fins which are stacked in the direction perpendicular to the direction of flow of air and a heat transfer pipe (20) which penetrates through the fins and which is joined and affixed to the fins by being expanded in diameter by a pipe expansion method. High protrusions (22A) extending in the axial direction of the heat transfer pipe (20) are provided on the inner surface of the heat transfer pipe (20) so as to be arranged in the circumferential direction. Low protrusions (22B) extending in the axial direction are provided between the high protrusions (22A). After the heat transfer pipe (20) is expanded the height of the high protrusions (22A) is greater than the height of the low protrusions (22B). The opposing side surfaces of adjacent high and low protrusions (22A 22B) are formed so as to be tilted so that after the heat transfer pipe (20) is expanded lines extended from the side surfaces intersect each other on the inside of the heat transfer pipe (20).
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
10 April 2014
Publication Number
27/2015
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
patent@depenning.com
Parent Application
Patent Number
Legal Status
Grant Date
2021-04-09
Renewal Date
Applicants
Mitsubishi Electric Corporation
7 3 Marunouchi 2 chome Chiyoda ku Tokyo
1008310
Inventors
1. LEE Sangmu
c/o Mitsubishi Electric Corporation 7 3 Marunouchi 2 chome Chiyoda ku Tokyo
1008310
2. ISHIKAWA Mitsuhiro
c/o Mitsubishi Electric Corporation 7 3 Marunouchi 2 chome Chiyoda ku Tokyo
1008310
3. ISHIBASHI Akira
c/o Mitsubishi Electric Corporation 7 3 Marunouchi 2 chome Chiyoda ku Tokyo
1008310
4. MATSUDA Takuya
c/o Mitsubishi Electric Corporation 7 3 Marunouchi 2 chome Chiyoda ku Tokyo
1008310
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 2744-CHENP-2014-RELEVANT DOCUMENTS [20-09-2023(online)].pdf | 2023-09-20 |
| 1 | SPECIFICATION.pdf | 2014-04-11 |
| 2 | 2744-CHENP-2014-IntimationOfGrant09-04-2021.pdf | 2021-04-09 |
| 2 | GPA.pdf | 2014-04-11 |
| 3 | Form 5.pdf | 2014-04-11 |
| 3 | 2744-CHENP-2014-PatentCertificate09-04-2021.pdf | 2021-04-09 |
| 4 | Form 3.pdf | 2014-04-11 |
| 4 | Correspondence By Agent_Power of Attorney_13-03-2019.pdf | 2019-03-13 |
| 5 | 2744-CHENP-2014.pdf | 2014-04-11 |
| 5 | 2744-CHENP-2014-ABSTRACT [11-03-2019(online)].pdf | 2019-03-11 |
| 6 | 2744-CHENP-2014-CLAIMS [11-03-2019(online)].pdf | 2019-03-11 |
| 6 | 1302-2014 OTHERS.pdf | 2014-04-11 |
| 7 | 2744-CHENP-2014-DRAWING [11-03-2019(online)].pdf | 2019-03-11 |
| 7 | 2744-CHENP-2014 FORM-13 09-05-2014.pdf | 2014-05-09 |
| 8 | 2744-CHENP-2014-FER_SER_REPLY [11-03-2019(online)].pdf | 2019-03-11 |
| 8 | 2744-CHENP-2014 CORRESPONDENE OTHERS 09-05-2014.pdf | 2014-05-09 |
| 9 | 2744-CHENP-2014 AMENDED PAGE OF SPECIFICATION 09-05-2014.pdf | 2014-05-09 |
| 9 | 2744-CHENP-2014-FORM 3 [11-03-2019(online)].pdf | 2019-03-11 |
| 10 | 2744-CHENP-2014 AMENDED CLAIMS 09-05-2014.pdf | 2014-05-09 |
| 10 | 2744-CHENP-2014-FORM-26 [11-03-2019(online)].pdf | 2019-03-11 |
| 11 | 2744-CHENP-2014 FORM-3 08-10-2014.pdf | 2014-10-08 |
| 11 | 2744-CHENP-2014-Information under section 8(2) (MANDATORY) [11-03-2019(online)].pdf | 2019-03-11 |
| 12 | 2744-CHENP-2014 FORM-1 08-10-2014.pdf | 2014-10-08 |
| 12 | 2744-CHENP-2014-OTHERS [11-03-2019(online)].pdf | 2019-03-11 |
| 13 | 2744-CHENP-2014 CORRESPONDENCE OTHERS 08-10-2014.pdf | 2014-10-08 |
| 13 | 2744-CHENP-2014-certified copy of translation (MANDATORY) [18-12-2018(online)].pdf | 2018-12-18 |
| 14 | 2744-CHENP-2014-FER.pdf | 2018-09-18 |
| 14 | abstract 2744-CHENP-2014..jpg | 2015-01-08 |
| 15 | 2744-CHENP-2014-FER.pdf | 2018-09-18 |
| 15 | abstract 2744-CHENP-2014..jpg | 2015-01-08 |
| 16 | 2744-CHENP-2014 CORRESPONDENCE OTHERS 08-10-2014.pdf | 2014-10-08 |
| 16 | 2744-CHENP-2014-certified copy of translation (MANDATORY) [18-12-2018(online)].pdf | 2018-12-18 |
| 17 | 2744-CHENP-2014-OTHERS [11-03-2019(online)].pdf | 2019-03-11 |
| 17 | 2744-CHENP-2014 FORM-1 08-10-2014.pdf | 2014-10-08 |
| 18 | 2744-CHENP-2014 FORM-3 08-10-2014.pdf | 2014-10-08 |
| 18 | 2744-CHENP-2014-Information under section 8(2) (MANDATORY) [11-03-2019(online)].pdf | 2019-03-11 |
| 19 | 2744-CHENP-2014 AMENDED CLAIMS 09-05-2014.pdf | 2014-05-09 |
| 19 | 2744-CHENP-2014-FORM-26 [11-03-2019(online)].pdf | 2019-03-11 |
| 20 | 2744-CHENP-2014 AMENDED PAGE OF SPECIFICATION 09-05-2014.pdf | 2014-05-09 |
| 20 | 2744-CHENP-2014-FORM 3 [11-03-2019(online)].pdf | 2019-03-11 |
| 21 | 2744-CHENP-2014 CORRESPONDENE OTHERS 09-05-2014.pdf | 2014-05-09 |
| 21 | 2744-CHENP-2014-FER_SER_REPLY [11-03-2019(online)].pdf | 2019-03-11 |
| 22 | 2744-CHENP-2014 FORM-13 09-05-2014.pdf | 2014-05-09 |
| 22 | 2744-CHENP-2014-DRAWING [11-03-2019(online)].pdf | 2019-03-11 |
| 23 | 1302-2014 OTHERS.pdf | 2014-04-11 |
| 23 | 2744-CHENP-2014-CLAIMS [11-03-2019(online)].pdf | 2019-03-11 |
| 24 | 2744-CHENP-2014-ABSTRACT [11-03-2019(online)].pdf | 2019-03-11 |
| 24 | 2744-CHENP-2014.pdf | 2014-04-11 |
| 25 | Form 3.pdf | 2014-04-11 |
| 25 | Correspondence By Agent_Power of Attorney_13-03-2019.pdf | 2019-03-13 |
| 26 | Form 5.pdf | 2014-04-11 |
| 26 | 2744-CHENP-2014-PatentCertificate09-04-2021.pdf | 2021-04-09 |
| 27 | GPA.pdf | 2014-04-11 |
| 27 | 2744-CHENP-2014-IntimationOfGrant09-04-2021.pdf | 2021-04-09 |
| 28 | SPECIFICATION.pdf | 2014-04-11 |
| 28 | 2744-CHENP-2014-RELEVANT DOCUMENTS [20-09-2023(online)].pdf | 2023-09-20 |
Search Strategy
| 1 | 2744_CHENP_2014_27-02-2018.pdf |