Coaxial gas-liquid heat exchanger with thermal expansion connector
US9459052B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2012 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Jul 28, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2265/26
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A co-axial gas-liquid heat exchanger such as a charge air cooler comprises at least three concentric tubes forming at least two annular flow passageways. One end of the inner tube is rigidly attached to the middle tube by a thermal expansion connector including an inner connecting portion secured to the first end of the inner tube, an outer connecting portion secured to an inner surface of the middle tube; and one or more webs connecting the inner connecting portion to the outer connecting portion. The webs extend across the annular gas flow passageway but permit the hot gas to flow therethrough. The other end of the inner tube is free to expand in the longitudinal direction, relative to the middle and outer tubes. In some embodiments, the inner connecting portion forms part of a central plug portion which blocks an end of the inner tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.