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Exhaust gas heat recovery heat exchanger having a lobed tube coil
US8978745B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8978745-B2 |
| Application number | US-201113289641-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 4, 2011 |
| Priority date | Nov 4, 2011 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
An exhaust gas heat recovery (EGHR) heat exchanger, for recovering waste heat from the hot exhaust gases of an internal combustion engine, having a housing and a cylindrical body disposed within the housing. The cylindrical body defines a central passageway and together with the housing defines an annular passageway for the flow of hot exhaust gases. A bypass means is disposed within the central passageway and adapted to selectively by-pass at least a portion of the exhaust gas from the central passageway to the annular passageway. The EGHR heat exchanger also includes at least one fluid tube extending along a tube axis and having at least one lobe extending the length of the tube thereby defining a lobed tube. The lobed tube is twisted about the tube axis forming a twisted lobed tube which is then coiled about the longitudinal axis within the annular exhaust gas passageway.
First claim
Opening claim text (preview).
Having described the invention, it is claimed: 1. An exhaust gas heat recovery (EGHR) heat exchanger for an internal combustion engine, comprising: a housing disposed along a longitudinal axis, wherein said housing includes a first end cap, a second end cap axially spaced from said first end cap, and an interior surface therebetween defining a cavity; a cylindrical body disposed within said cavity and includes a first end extending through said first end cap defining an exhaust…
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Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
- F28D7/024Primary
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8978745B2 cover?
- An exhaust gas heat recovery (EGHR) heat exchanger, for recovering waste heat from the hot exhaust gases of an internal combustion engine, having a housing and a cylindrical body disposed within the housing. The cylindrical body defines a central passageway and together with the housing defines an annular passageway for the flow of hot exhaust gases. A bypass means is disposed within the centra…
- Who is the assignee on this patent?
- Koo James J, Zima Mark James, Bright James Alan, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification F28D7/024. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).