GB2362099A - Automatic fire extinguishing system e.g. for vehicles - Google Patents
Automatic fire extinguishing system e.g. for vehicles Download PDFInfo
- Publication number
- GB2362099A GB2362099A GB0011146A GB0011146A GB2362099A GB 2362099 A GB2362099 A GB 2362099A GB 0011146 A GB0011146 A GB 0011146A GB 0011146 A GB0011146 A GB 0011146A GB 2362099 A GB2362099 A GB 2362099A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fire extinguishing
- automatic
- extinguishing system
- fire
- fitted
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims abstract description 18
- 239000000779 smoke Substances 0.000 claims abstract description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000000979 retarding effect Effects 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 6
- 230000003137 locomotive effect Effects 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000003517 fume Substances 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 230000009970 fire resistant effect Effects 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims 2
- 229910021386 carbon form Inorganic materials 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 1
- 239000003380 propellant Substances 0.000 claims 1
- 230000007257 malfunction Effects 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/11—Permanently-installed equipment with containers for delivering the extinguishing substance controlled by a signal from the danger zone
- A62C35/13—Permanently-installed equipment with containers for delivering the extinguishing substance controlled by a signal from the danger zone with a finite supply of extinguishing material
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The system is mounted in the engine compartment of a vehicle, boat, aircraft or locomotive and comprises pressurised containers of (a) water and (b) a fire retarding and extinguishing material such as carbon dioxide powder. Delivery may be by jet spray nozzles. The system may be activated by a smoke detector or impact sensor and a fuel cut off switch can be included. If hit directly, the pressurised containers can rupture so that they release their content into the engine compartment.
Description
2362099 AUTONUTIC MOTOR FIRE EXTINGUISHER This invention relates to
automatic fire extinguishing system for motor vehicle, locomotives, aircraft, water vessels and other fuel run equipments.
Almost all fires involving fuel run vehicles and equipments originates from the engine compartment. This is the best place from where to tackle it.
Thousands of people are killed, crippled or injured and properties worth millions of pounds destroyed needlessly around the world each year from fire resulting from motor accidents. The main source of these fires is mostly as a result of impact of head-on collision of vehicles or trains with other mobile, stationary vehicles such as in cases of motorway pileup or with stationary objects eg. trees and roadside furnitures; or derailment in the case of locomotives and trains. Fire also result from mechanical or electric faults or/and malfunctions.
It is evident that in most cases, even after surviving the initial direct impact, victims are often trapped in the wreckage and consequently left venerable and helpless to the resultant fire.
The collision impact often leaves bust fuel pipes spilling fuel on hot engine and hot exhaust manifold producing highly flammable fumes. These fumes can easily be ignited by sparks from the sparks distributor; sparks from electrical short circuit, or by very hot exhaust pipe.
If flre is not deterred within the first few seconds of impact or malfunction, it spreads fast and soon travels by the fuel pipes, bodywork paint or/and other caustic materials to the usually pressurised fuel tank, which explodes soon after to an impossible flame.
It is apparent that any effort to prevent the potential danger of motor fire must be concentrated on the first few seconds of collision impact or other malfunction, as only merger effort and resources are required to put it off or deter it from spreading to a dangerous proportion if it is tackled at the exact time of happening.
2 Evidently, fatality from road, rail, and even air transport accidents would be reduced immensely if the rate factor is reduced and if possible eliminated altogether. To achieve this objective, time and timing is everything.
The object of this invention is to eliminate and diminish the possibility of motor fire resulting from collision impact or mechanical faults and other malfunctions at the earliest possible stage.
The system provides the much needed and crucial time and opportunity for the surviving driver and occupants of an accident vehicle to escape further injury or death from potential fire; at least until rescue team and professional firefighters arrive. This system would especially be of help in the event of motorway pileup where one fire could trigger a chain reaction with a devastating destruction. This is aimed to add to other exiting measures already in force.
In any event of motor engine fire, the first sign of it is usually smoke. This smoke could either come from:- fumes emission from fuel spillage oVer hot engine and hot exhaust manifold coining from fuel pipe bust; burning wires resulting from electrical short circuit; explosion on impact. The smoke and fuel fumes are used, via a smoke detector, to work as part of the triggering agent of the system's switching device. Simultaneously, electronic impact sensors are also used to complete the sequence to trigger the system's switching device to work.
According to the present invention, there is provided:- 0 Two pressurised cylindrical vessels, one containing fire retarding compound e.g. foam forming chemical or carbon dioxide powder or any other suitable fire extinguishing compound; and the other containing water laced with necessary chemical additive to reduce its surface tension; are mounted on a suitable position within the engine compartment 3 Dispensing units, each fitted with appropriate number and type of high pressure jet spray nozzles are mounted on a suitable area above the engine brock.
Pressure and fire resistant pipes are connect between the pressurized containers and the dispensing units.
Suitable release valves are fitted on the pipes between the pressurized containers and the dispensing units.
A smoke and fumes detecting device of a known type and of suitable sensitivity is fitted within the engine compartment.
Electronically controlled switching units are fitted on each valve and then connected via an integrated circuit to smoke and fumes emission detector. Electronically controlled impact sensors of a determined extent are fitted around and within the engine compartment with necessary wiring circuit extended to the switching units of the valves.
The circuit is also extended accordingly to a fuel cut-off switch, which is coupled with fuel pump to reverse the fuel from the engine back to the fuel tank. Another cut-off switch can he provided to cut off battery power to the sparks distributor in case of a petrol engine.
Specific details of a typical construction of the invention will now be described here below by way of example with reference to the accompanying drawing whereas:- As shown in figure 1; after an accident; when smoke and fumes exceeds a certain and determined intensity, it activate the system into a series of simultaneous reactions as follows:- Smoke and fumes detector W is activated to complete an electric circuit to the system's switching unit 'i'.
4 The electronic switching unit 'i' activates the valves 'c' to open thus forcing the pressurised vessels 'a' and 'h' into spurting rapid and forceful splashing of fire retarding and extinguishing compound eg. foam forming chemical or carbon dioxide powder and water through respective jet spray nozzles 'h' of the dispenser unit 'c' to all over the engine area. Air compressor W; maintains the pressure within the pressurized vessels 'a' and 'h' It comes on every time there is variation in pressure especially when the valves open in case of fire. Non return valves 'p' maintains the one way flow of air pressure within the system.
Simultaneously, an electronic impact sensor 'g' supplements the smoke detector 'g' if the impact exceeds a certain and determined extent.
The switching unit 'i' also activates fuel pump to reverse action thus drawing the remnant fuel from the engine and back in to the fuel tank.
Power supply to the sparks distributor, in case of a petrol run vehicle, is also cut off thus stopping the engine to run.
A warning pilot light 'm' shows on the dashboard.
A warning alarm 'm' sounds within the car cabin area.
An over-ride button 1' fitted on the dashboard is provided to operate the system manually.
The electronic switching unit can he integrated fully or partially with a computerised console to control the system's switching unit's responses to various situations digitally.
If the collision impact is more intense such that the pressurized vessels suffer a direct hit, they are designed to rupture pouring their contents all over the engine compartment thus retarding or putting off any resulting fire.
Claims (11)
1.Automatic motor fire extinguishing system comprising of two pressurised cylindrical containers, wherein one cylinder contains fire retarding and extinguishing material e.g. powder carbon dioxide, and the other cylinder containing water are mounted in a suitable position away from external moving parts inside the engine compartment of a fuel run equipment eg. motor vehicle; locomotive; aircraft; etc.. Shape and capacity of the containers may vary accordingly with the size of the equipment's engine size.
2.Automatic: motor fire extinguishing system as claimed in claim 1 above wherein a dispensing unit, fitted with jet spray nozzles, and connected to the pressurised vessels with pressure and fire resistant pipes, is provided and mounted inside the engine compartment and centred over and directed towards the engine carburettor area.
3.Automatic motor fire extinguishing system as claimed in Claim 1 and 2 above wherein a smoke and fumes detector of a know type but designed to act as a switching device, and with all necessary wiring connection is provided and fitted on a suitable position inside the engine compartment.
4.Automatic motor fire extinguishing system as described in Claim 3 above and other preceding Claims wherein a suitable electronically controlled valve switching units with multiple functions and connected accordingly to the smoke detector, impact sensors, warning alarm and light; are installed on a suitable position within the engine compartment to control the opening and closing of the valves.
6 S.Automatic fire extinguishing system as claimed in all other preceding Claims wherein the system can easily be fitted in any old or factory fitted on new motor vehicles or any other fuel engine propelled devices.
6.Automatic fire extinguishing system as claimed in claim 5 wherein an audible and recognisable alarm, triggered by the smoke detector, is provided to warn the driver or operator and other occupants of an impending danger of fire in the vehicle in order to take appropriate measures and in time.
7.Automatic motor fire extinguishing system as claimed in Claim 6 and other previous Claims wherein if the system's pressurized containers suffers a direct hit during a collision impact, they are designed to rupture and forcefully pours the contents all over the engine compartment thus retarding or putting off any fire.
S.Automatic motor fire extinguishing system as previously claimed wherein an over-ride switch button of a known design and style is provided and fitted on the dashboard of the vehicle or the cockpit in case of an aircraft or any suitable and accessible position in case of any other equipment. This over-ride button is for manual operation.
9.Automatic fire extinguishing system as claimed in all previous claims wherein the system can be fully or partially integrated with a computerised console to control the systems' reponce to various situation.
10.Automatic fire extinguisher as substantially described herein with reference to figures 1 of the accompanying drawing.
1 Amendments to the claims have been filed as follows Claims Automatic Fire-Extinguishing System 1.Automatic motor fire extinguishing system comprising of two pressurised cylindrical containers, wherein one cylinder contains fire retarding and extinguishing material e.g. powder carbon dioxide or foam form g compound and the other cylinder containing water laced with necessary chemicals to reduce surface tension, are mounted in a suitable position away from external moving parts inside the engine compartment of a fuel run equipment e.g. motor vehicle; locomotive; aircraft; etc.. Shape and capacity of the pressurised vessels may vary accordingly with the size of the equipment, and the type of engine propellant.
2. Automatic motor fire extinguishing as in claim 1 above wherein a DC electric air compressor of A known make and of a determined horse power is installed on suitable position within the equipment Connections are made to adapt the pressurized pipe work to the air compressor; the purpose of which is to maintain pressure within the system. The compressor is automated to turn on every time there is decreased variation of pressure. A one way non return valve is fitted on the pipe between the pressurized vessels and the air compressor to prevent leakage.
3.Automatic motor fire extinguishing system as claimed in claim 1 and 2 above wherein a dispensing unit, fitted with multiple jet spray nozzles, and connected to the pressurised vessels with pressure and fire resistant pilpes, is provided and mounted inside the engine compartment and centred ove and directed towards the engine carburettor area. The nozzles are divided iR9 two and according to the extingusant they are dispensing. Some are connected to the vessel containing water and the others are the vesset containing carbon dioxide or form forming compound respectively.
J2 - A claimn 4.Automatic motor fire extinguishing system as claimed in Claim 3 above wherein a smoke and fumes detector of a know type but designed to work as a switching device, and with all necessary wiring connection is provided and fitted on a suitable position inside the engine compartment.
5.Automatic motor fire extinguishing system as described in Claim 4 above and other preceding Claims wherein a suitable valve switching system of a known type but modified to respond quickly and as directed is installed and connected accordingly to the system pipe work and wiring.
6.Automatic fire extinguishing system as claimed in all other preceding Claims wherein the system can easily be fitted in any old or factory fitted on new motor vehicles, loco motive, aircraft or any other fuel engine propeUed devices.
7.utomatic fire extinguishing system as claimed in claim 6 wherein an audible and recognisable alarm, triggered by the smoke and fumes detector, is provided to warn the driver or operator and other occupants of an impending danger of fire in the vehicle in order to take appropriate measures and in time.
&Automatic motor fire extinguishing system as claimed in Claim 7 and other previous Claims wherein if the system's pressurised containers suffers a direct hit during a collation impact, they are designed to rupture and forcefully pours their contents all over the engine compartment thus retarding or putting off any fire.
Claims(contd) 9.Automatic motor fire extinguishing system as previously claimed wherein an override switch button of a known design and style is provided and fitted on the dashboard of the vehicle or the cockpit in case of an aircraft or any suitable and accessible position in case of any other equipment to manually trigger the system to work e.g. when testing and inspecting the system or when the operator or driver suspects delay with the automatic trigger devices.
10.Automatic fire extinguishing system as claimed in all previous claims wherein the system can be fully or partially integrated with a computerised console to control the systems' response to various situation.
11.Automatic fire extinguisher as substantially described herein with reference to figures 1 of the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0011146A GB2362099B (en) | 2000-05-10 | 2000-05-10 | Automatic fire extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0011146A GB2362099B (en) | 2000-05-10 | 2000-05-10 | Automatic fire extinguisher |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0011146D0 GB0011146D0 (en) | 2000-06-28 |
| GB2362099A true GB2362099A (en) | 2001-11-14 |
| GB2362099B GB2362099B (en) | 2003-10-15 |
Family
ID=9891232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0011146A Expired - Fee Related GB2362099B (en) | 2000-05-10 | 2000-05-10 | Automatic fire extinguisher |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2362099B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2254492C1 (en) * | 2004-01-05 | 2005-06-20 | Военно-морская академия им. Адмирала Флота Советского Союза Н.Г. Кузнецова | Method to prevent ignition of hydrocarbon fuels in emergency and device for implementing the method for objects equipped with internal combustion engines |
| WO2006111361A1 (en) * | 2005-04-19 | 2006-10-26 | Bombardier Transportation Gmbh | Fire fighting in locomotives |
| BE1018089A3 (en) * | 2008-04-07 | 2010-05-04 | Laifaoui Mohamed | Safety system for motor vehicle e.g. car, has sensor detecting critical situation e.g. accident, where fire extinguishing unit and fuel supply closing unit are driven by CPU when critical situation is detected |
| CN102886112A (en) * | 2011-07-20 | 2013-01-23 | 国安达消防科技(厦门)有限公司 | Dual-drive multi-nozzle automatic pipe network fire extinguishing device |
| CN103301587A (en) * | 2013-06-03 | 2013-09-18 | 安徽富煌和利时科技有限公司 | Bus with extinguishment function |
| CN103816632A (en) * | 2014-03-05 | 2014-05-28 | 陆传军 | Self-extinguishing method and device for high-speed jetting high foams to car engine chamber |
| US9409045B2 (en) | 2011-08-25 | 2016-08-09 | Pyrogen Manufacturing Sdn Bhd | Solid propellant fire extinguishing system |
| CN106890410A (en) * | 2017-02-20 | 2017-06-27 | 广东新船重工有限公司 | The automatic track and localization jet fire extinguishing system of ship |
| CN110354422A (en) * | 2019-07-08 | 2019-10-22 | 中国石油化工股份有限公司 | A kind of negative pressure mobile three-phase froth generating device and method |
| CN111840870A (en) * | 2020-07-22 | 2020-10-30 | 西安科技大学 | A multi-agent combined fire extinguishing system and method based on liquid carbon dioxide |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104606810A (en) * | 2015-01-15 | 2015-05-13 | 李丛林 | CO2 fire extinguishing system for bus |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981002609A1 (en) * | 1980-03-13 | 1981-09-17 | Caterpillar Tractor Co | Fire suppression system |
| FR2674441A1 (en) * | 1991-03-28 | 1992-10-02 | Mahu Christian | Firebreak (firewall) safety device for a motor vehicle with internal combustion engine |
| GB2259011A (en) * | 1991-08-27 | 1993-03-03 | Maurice Lloyd | Automatic fire extinguishing system for an automobile |
| DE4223293A1 (en) * | 1992-07-15 | 1993-06-09 | Rudolf 8391 Tiefenbach De Sittinger | Fire extinguishing system for passenger and commercial vehicles - has carbon di:oxide extinguishers with electrical release by temp. and shock sensors, with separate batteries for blinkers. |
| WO1995023630A1 (en) * | 1994-03-02 | 1995-09-08 | Santa Barbara Research Center | Fire suppressing system for motor vehicle |
| DE29615693U1 (en) * | 1996-09-09 | 1996-11-28 | Sin Fane Technology Co., Ltd., Tainan | Anti-detonation system for automobiles |
| US5613564A (en) * | 1995-07-31 | 1997-03-25 | Rhines; Andy J. | Vehicle engine fire extinguisher apparatus |
| GB2307406A (en) * | 1995-11-24 | 1997-05-28 | Graham James Bowkett | An automatic fire extinguisher for vehicles |
-
2000
- 2000-05-10 GB GB0011146A patent/GB2362099B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981002609A1 (en) * | 1980-03-13 | 1981-09-17 | Caterpillar Tractor Co | Fire suppression system |
| FR2674441A1 (en) * | 1991-03-28 | 1992-10-02 | Mahu Christian | Firebreak (firewall) safety device for a motor vehicle with internal combustion engine |
| GB2259011A (en) * | 1991-08-27 | 1993-03-03 | Maurice Lloyd | Automatic fire extinguishing system for an automobile |
| DE4223293A1 (en) * | 1992-07-15 | 1993-06-09 | Rudolf 8391 Tiefenbach De Sittinger | Fire extinguishing system for passenger and commercial vehicles - has carbon di:oxide extinguishers with electrical release by temp. and shock sensors, with separate batteries for blinkers. |
| WO1995023630A1 (en) * | 1994-03-02 | 1995-09-08 | Santa Barbara Research Center | Fire suppressing system for motor vehicle |
| US5613564A (en) * | 1995-07-31 | 1997-03-25 | Rhines; Andy J. | Vehicle engine fire extinguisher apparatus |
| GB2307406A (en) * | 1995-11-24 | 1997-05-28 | Graham James Bowkett | An automatic fire extinguisher for vehicles |
| DE29615693U1 (en) * | 1996-09-09 | 1996-11-28 | Sin Fane Technology Co., Ltd., Tainan | Anti-detonation system for automobiles |
Non-Patent Citations (3)
| Title |
|---|
| WPI Accession No.1992-391947 & FR 2674441 A1 * |
| WPI Accession No.1993-189593 & DE 4223293 A1 * |
| WPI Accession No.1997-013220 & DE 29615693 U1 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2254492C1 (en) * | 2004-01-05 | 2005-06-20 | Военно-морская академия им. Адмирала Флота Советского Союза Н.Г. Кузнецова | Method to prevent ignition of hydrocarbon fuels in emergency and device for implementing the method for objects equipped with internal combustion engines |
| WO2006111361A1 (en) * | 2005-04-19 | 2006-10-26 | Bombardier Transportation Gmbh | Fire fighting in locomotives |
| BE1018089A3 (en) * | 2008-04-07 | 2010-05-04 | Laifaoui Mohamed | Safety system for motor vehicle e.g. car, has sensor detecting critical situation e.g. accident, where fire extinguishing unit and fuel supply closing unit are driven by CPU when critical situation is detected |
| CN102886112A (en) * | 2011-07-20 | 2013-01-23 | 国安达消防科技(厦门)有限公司 | Dual-drive multi-nozzle automatic pipe network fire extinguishing device |
| CN102886112B (en) * | 2011-07-20 | 2016-04-06 | 国安达股份有限公司 | A kind of Dual Drive multi-port pipe network automatic extinguishing device |
| US9409045B2 (en) | 2011-08-25 | 2016-08-09 | Pyrogen Manufacturing Sdn Bhd | Solid propellant fire extinguishing system |
| CN103301587A (en) * | 2013-06-03 | 2013-09-18 | 安徽富煌和利时科技有限公司 | Bus with extinguishment function |
| CN103816632A (en) * | 2014-03-05 | 2014-05-28 | 陆传军 | Self-extinguishing method and device for high-speed jetting high foams to car engine chamber |
| CN106890410A (en) * | 2017-02-20 | 2017-06-27 | 广东新船重工有限公司 | The automatic track and localization jet fire extinguishing system of ship |
| CN110354422A (en) * | 2019-07-08 | 2019-10-22 | 中国石油化工股份有限公司 | A kind of negative pressure mobile three-phase froth generating device and method |
| CN111840870A (en) * | 2020-07-22 | 2020-10-30 | 西安科技大学 | A multi-agent combined fire extinguishing system and method based on liquid carbon dioxide |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2362099B (en) | 2003-10-15 |
| GB0011146D0 (en) | 2000-06-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20130510 |