GB1379684A - Foam acoustic damping for an internal combustion engine - Google Patents
Foam acoustic damping for an internal combustion engineInfo
- Publication number
- GB1379684A GB1379684A GB1139072A GB1139072A GB1379684A GB 1379684 A GB1379684 A GB 1379684A GB 1139072 A GB1139072 A GB 1139072A GB 1139072 A GB1139072 A GB 1139072A GB 1379684 A GB1379684 A GB 1379684A
- Authority
- GB
- United Kingdom
- Prior art keywords
- foam
- discharged
- gases
- manifold
- jet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/60—Constructional parts; Details not otherwise provided for
- F02K9/62—Combustion or thrust chambers
- F02K9/64—Combustion or thrust chambers having cooling arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/28—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto using fluid jets to influence the jet flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/28—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto using fluid jets to influence the jet flow
- F02K1/34—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto using fluid jets to influence the jet flow for attenuating noise
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Engines (AREA)
Abstract
1379684 Rocket engines - silencing TRW Inc 10 March 1972 [10 March 1971 (2)] 11390/72 Headings F1B F1J and F1L The invention relates to a method of cooling and acoustic damping of the exhaust gases of an internal combustion engine by injecting foam into the boundary of the exhaust gases, the invention being described with reference to a rocket engine. The rocket engine shown comprises a fuel injector 15 and an oxidizer supply duct 18. An annular manifold 20 is disposed around the upstream end of the combustion chamber and communicates therewith through apertures 21. A foam generator 25 communicates with the manifold whereby foam may be discharged into the combustion chamber adjacent the outer surface of the combustion gases. A foam agent may be discharged directly into the flow of oxidizer whereby the foam is formed directly in the combustion chamber. In another embodiment the foam manifold is disposed around the jet pipe whereby the foam is discharged into the outer peripheral surface of the jet gases. In Fig. 3 the foam is discharged from an annular manifold 36 disposed around the outlet of the jet nozzle, a cylindrical screen 37 being so disposed that foam discharges through the screen into the jet gases.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12285871A | 1971-03-10 | 1971-03-10 | |
| US00122857A US3815356A (en) | 1971-03-10 | 1971-03-10 | Foam cooling and acoustic damping of exhaust gases produced by an internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1379684A true GB1379684A (en) | 1975-01-08 |
Family
ID=26820969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1139072A Expired GB1379684A (en) | 1971-03-10 | 1972-03-10 | Foam acoustic damping for an internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1379684A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833661A (en) * | 2021-09-18 | 2021-12-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body structure and compressor |
-
1972
- 1972-03-10 GB GB1139072A patent/GB1379684A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833661A (en) * | 2021-09-18 | 2021-12-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body structure and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |