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US-10508040-B2 · Dec 17, 2019 · US
Hypergolic hydrocarbon fuel
US11198656B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11198656-B2 |
| Application number | US-201815920521-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 14, 2018 |
| Priority date | Mar 17, 2017 |
| Publication date | Dec 14, 2021 |
| Grant date | Dec 14, 2021 |
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Abstract
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The present application generally relates to hypergolic hydrocarbon fuel compositions comprising a convenient fuel and a cycloheptatriene and/or its analogs, and methods of making and using the hypergolic hydrocarbon fuel compositions.
First claim
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The invention claimed is: 1. A hypergolic fuel composition system comprising a first standalone oxidizer composition having an oxidizer selected from the group consisting of N 2 O 4 , NO, HNO 3 , and a combination thereof; and a second standalone fuel composition having an optional conventional fuel, and a compound of formula (I): wherein R 1 -R 8 are each independently H, —NR 9 R 10 , —OR 11 , —NH(C═O)—R 12 , —O(C═O)—R 13 , —CN, —NO 2 , —CF 3 , —(C═O)R 14 , —COOR 15 , halogen, C1-C8 straight or branched alkyl, C1-C8 straight or branched alkenyl, C1-C8 straight or branched alkynyl, or C3-C8 cycloalkyl, and wherein R 1 and R 2 can form an exocyclic double bond═X, wherein═X is ═CR 16 R 17 , ═NR 18 , or ═O; and R 9 -R 18 are each independently H, C1-C8 straight or branched alkyl, wherein the hypergolic fuel composition system provides an ignition delay of 1 ms-100 ms when the second standalone fuel composition is treated with the first standalone oxidizer composition to generate a spontaneously ignition. 2. The fuel composition system of claim 1 , wherein the compound of formula (I) is cycloheptatriene. 3. The fuel composition system of claim 1 , wherein the conventional fuel comprises kerosene. 4. The fuel composition system of claim 1 , wherein the weight percentage of the compound of formula (I) is 20-100% in the second standalone fuel composition.
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Frequently asked questions
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- What does patent US11198656B2 cover?
- The present application generally relates to hypergolic hydrocarbon fuel compositions comprising a convenient fuel and a cycloheptatriene and/or its analogs, and methods of making and using the hypergolic hydrocarbon fuel compositions.
- Who is the assignee on this patent?
- Purdue Research Foundation
- What technology area does this patent fall under?
- Primary CPC classification C06B47/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 14 2021 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).