Multi-layered fuel tubing
US-9528637-B2 · Dec 27, 2016 · US
Refrigerant line
US8997798B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8997798-B2 |
| Application number | US-201213346996-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 10, 2012 |
| Priority date | Jan 19, 2011 |
| Publication date | Apr 7, 2015 |
| Grant date | Apr 7, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A refrigerant line for carrying a mixture of refrigerant and lubrication oil. The line includes an inner casing made of a material impermeable to the refrigerant/oil mixture, an outer casing made of a material that is highly permeable to the refrigerant in its gaseous state, and an intermediate layer between the inner and outer casings made of a material that is high permeable to the gaseous refrigerant but that is able to retain the admixed oil. In this way, any oil contained in a refrigerant/oil mixture leaking through the inner casing is retained by the intermediate layer, while the refrigerant gas is allowed to escape through the outer two layers. The intermediate layer may retain the oil by absorption, by adsorption, or by binding of the oil.
First claim
Opening claim text (preview).
What is claimed is: 1. A line for carrying a refrigerant/oil mixture, comprising: an inner tube made of a first material impermeable to refrigerants and oil; an outer casing made of a second material having a high permeability to refrigerants in a gaseous state; and an intermediate layer between the inner tube and the outer casing made of a third material having a high permeability to refrigerants in a gaseous state, and further able to retain oil. 2. The…
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Classifications
- F16L9/14Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8997798B2 cover?
- A refrigerant line for carrying a mixture of refrigerant and lubrication oil. The line includes an inner casing made of a material impermeable to the refrigerant/oil mixture, an outer casing made of a material that is highly permeable to the refrigerant in its gaseous state, and an intermediate layer between the inner and outer casings made of a material that is high permeable to the gaseous re…
- Who is the assignee on this patent?
- Fischer Dietmar, Markowitz Markus, Schmitz Lambertus Wilhelmus, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification F16L9/14. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 07 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).