ES2376452A1 - Device for collecting gases for fuel tanks - Google Patents
Device for collecting gases for fuel tanks Download PDFInfo
- Publication number
- ES2376452A1 ES2376452A1 ES200950066A ES200950066A ES2376452A1 ES 2376452 A1 ES2376452 A1 ES 2376452A1 ES 200950066 A ES200950066 A ES 200950066A ES 200950066 A ES200950066 A ES 200950066A ES 2376452 A1 ES2376452 A1 ES 2376452A1
- Authority
- ES
- Spain
- Prior art keywords
- elbows
- fuel
- descending
- tank
- gases
- 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
- 239000002828 fuel tank Substances 0.000 title claims description 9
- 239000007789 gas Substances 0.000 title description 17
- 230000001174 ascending effect Effects 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 230000005484 gravity Effects 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 description 18
- 239000003502 gasoline Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
- B60K15/03504—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
- B60K15/03504—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems
- B60K2015/03514—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems with vapor recovery means
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
Dispositivo de recogida de gases para depósitos de combustible.Gas collection device for tanks made out of fuel.
La presente invención se refiere a un dispositivo de recogida de gases para depósitos de combustible, del tipo de los usados para la ventilación y rebosadero.The present invention relates to a gas collection device for fuel tanks, of type of those used for ventilation and overflow.
En los vehículos automóviles y otros aparatos que funcionan mediante motores de explosión interna por combustible líquido, tales como bombas de agua o generadores eléctricos, se dispone de un depósito o tanque de combustible, en el cual se almacena dicho combustible hasta su uso.In motor vehicles and other devices that work by internal combustion engines by fuel liquid, such as water pumps or electric generators, will It has a fuel tank or tank, in which stores said fuel until use.
Estos depósitos presentan habitualmente un conducto para la evacuación de los gases originados por la evaporación del combustible, la respiración del depósito en su llenado y vaciado y que además puede actuar de rebosadero, evitando un sobrellenado de dicho depósito al reponer su contenido, lo cual podría afectar a su integridad. Además, este conducto de evacuación de gases permite la entrada del aire a medida que se consume el combustible.These deposits usually have a conduit for the evacuation of the gases originated by the evaporation of the fuel, the breath of the tank in its filling and emptying and which can also act as an overflow, avoiding an overfill of said deposit when replenishing its contents, which It could affect your integrity. In addition, this evacuation duct of gases allows air to enter as the fuel.
En efecto, sobre todo los depósitos y tanques que contienen gasolina sufren el problema de la alta volatilidad de este combustible, por lo que la cantidad de combustible que se desprende en forma de vapores o gases es considerable y debe ser evacuada, principalmente para evitar riesgos de incendio y sobrepresiones en el depósito.Indeed, especially deposits and tanks that contain gasoline suffer the problem of high volatility of this fuel, so the amount of fuel that is given off in the form of vapors or gases is considerable and should be evacuated, mainly to avoid fire hazards and overpressures in the deposit.
Una solución sencilla es el uso de una toma de conexión al depósito de combustible en su parte superior y un conducto descendente hasta un extremo abierto de descarga por gravedad, que permite la salida del combustible líquido en caso de sobrellenado. Esta constitución es muy sencilla y económica, pero su eficiencia está limitada y no evita la pérdida considerable de combustible en forma de gases, sobre todo en climas cálidos, con altas temperaturas, donde la evaporación es mayor.A simple solution is the use of a socket connection to the fuel tank on top and a down conduit to an open discharge end by gravity, which allows the exit of liquid fuel in case of overfill This constitution is very simple and economical, but its efficiency is limited and does not prevent the considerable loss of fuel in the form of gases, especially in hot climates, with high temperatures, where evaporation is higher.
Unos medios utilizados para controlar los gases del combustible emitidos por el depósito comprenden la conexión del rebosadero a un depósito de carbón activo o "canister", en el cual quedan capturados dichos gases hasta el arranque del motor, y sin embargo permiten salir y entrar el aire atmosférico. Sin embargo resulta una solución cara y difícil de optimizar.Means used to control gases of the fuel emitted by the tank include the connection of the overflow to an active carbon deposit or "canister", in the which gases are captured until the engine starts, and however they allow the atmospheric air to enter and enter. But nevertheless It is an expensive and difficult to optimize solution.
El documento DE4322728 A1 describe un dispositivo de recogida de gases para depósitos de combustible, del tipo de descarga por gravedad a través de un orificio, que comprende varios codos dispuestos en serie, entre el conducto descendente y el orificio de descarga, unidos por respectivos codos invertidos alternados mediante unos conductos ascendentes y descendentes intermedios. Este dispositivo presenta el problema de que la ventilación no se hace de forma natural, sino que requiere el paso de los gases por un recipiente de almacenamiento con un material absorbente del combustible, presentando este depósito una regulación de la presión en su interior, y a su vez en el conducto. Esta regulación se realiza mediante unas válvulas de complejo manejo respecto a los instantes apropiados de apertura y cierre.Document DE4322728 A1 describes a gas collection device for fuel tanks, of type of gravity discharge through a hole, which comprises several elbows arranged in series, between the descending duct and the discharge hole, joined by respective inverted elbows alternated by ascending and descending ducts intermediate This device presents the problem that the ventilation is not done naturally, but requires the passage of the gases through a storage container with a material absorbing fuel, this tank presenting a regulation of the pressure inside, and in turn in the duct. This regulation is carried out by means of complex handling valves regarding the appropriate opening and closing moments.
Por otra parte, en el documento DE2223205 A1 se da a conocer un depósito de combustible con un tubo de ventilación que forma, en un tramo de su trayectoria, una hélice o espiral. Este tubo de ventilación está dimensionado para su colocación entre la boca de llenado y el depósito en sí, con lo que no proporciona ningún efecto de retención de dichos gases de forma condensada.Moreover, in document DE2223205 A1, discloses a fuel tank with a vent pipe that forms, in a section of its trajectory, a propeller or spiral. This vent tube is sized for placement between the filling mouth and the tank itself, which does not provide no effect of retaining said gases in a condensed manner.
El documento US5255735 A comprende un ventilador que se utiliza para aumentar el flujo de aire que rodea un dispositivo intercambiador de calor que forma parte integrante de un mecanismo complejo de refrigeración de combustible, pero que requiere de un controlador especializado para el manejo de válvulas de cierre y apertura, lo que no hace a dicho dispositivo apto para una instalación durable y sin mantenimiento.US5255735 A comprises a fan which is used to increase the air flow surrounding a heat exchanger device that is an integral part of a complex fuel cooling mechanism, but that requires a specialized controller for valve handling closing and opening, which does not make said device suitable for A durable and maintenance free installation.
El dispositivo de recogida de gases para depósitos de combustible, objeto de esta invención, presenta unas particularidades técnicas destinadas a conseguir una mayor eficiencia en el control de gases del depósito con un coste de fabricación contenido y una mayor fiabilidad de uso.The gas collection device for fuel tanks, object of this invention, presents some technical peculiarities aimed at achieving greater Efficiency in the control of gases in the tank with a cost of Content manufacturing and greater reliability of use.
En efecto, el dispositivo comprende uno o más codos de sifón dispuestos en serie, entre el conducto descendente y el orificio de descarga, unidos por respectivos codos invertidos de forma alternada, mediante unos conductos ascendentes y descendentes. Esta disposición permite así obtener en cada uno de los codos inferiores un tapón o válvula hidrostática conformado por los gases de gasolina condensados en pequeñas cantidades de líquido. Estos codos dificultan e incluso evitan la salida de los gases y vapores de combustible, produciendo una ligera elevación de la presión interior, pero no peligrosa. Cada uno de los codos de sifón reduce consecutivamente la cantidad de vapores que pueden salir al exterior del depósito, mejorando el rendimiento del dispositivo. Así, si el dispositivo cuenta con un codo la reducción de las pérdidas de combustible por evaporación es considerable, respecto a una instalación con un rebosadero solamente. Si el número de codos sube a tres, el rendimiento es muy elevado y evita una gran pérdida de gasolina. En caso de climas tropicales y muy calurosos, es posible que la presencia de cinco codos sea la más adecuada para optimizar la instalación.In effect, the device comprises one or more siphon elbows arranged in series, between the descending duct and the discharge orifice, joined by respective inverted elbows of alternate form, through ascending and descending ducts. This arrangement thus allows to obtain in each of the elbows Bottoms a plug or hydrostatic valve formed by gases of gasoline condensed in small amounts of liquid. These elbows hinder and even prevent the escape of gases and vapors of fuel, producing a slight rise in pressure Inner, but not dangerous. Each of the siphon elbows reduces consecutively the amount of vapors that can go outside of the tank, improving the performance of the device. So, if the device has an elbow reducing the losses of evaporation fuel is considerable, with respect to a installation with an overflow only. If the number of elbows goes up to three, the performance is very high and prevents a great loss of gasoline. In case of tropical and very hot climates, it is possible that the presence of five elbows is the most appropriate to optimize installation.
Al comenzar a consumirse el combustible, el dispositivo permite la entrada del aire del exterior y además reintroduce en el depósito los vapores y condensados alojados en su seno, con lo que se recupera el combustible que originalmente se ventilaba al exterior.When the fuel begins to be consumed, the device allows the entry of outside air and also reintroduces into the tank the vapors and condensates housed in its sine, thereby recovering the fuel that was originally ventilated outside.
Los codos se pueden encontrar anidados configurando una espiral, lo que reduce el espacio necesario y simplifica su construcción.Elbows can be found nested configuring a spiral, which reduces the necessary space and Simplify its construction.
En otra realización los codos se encuentran dispuestos en serie a una misma altura aproximada. Estos codos se pueden colocar a distancia del depósito si se cree necesario, alargando el primer codo dispuesto a continuación del depósito de combustible, sin que ello ocasione reducción del rendimiento apreciable.In another embodiment the elbows meet arranged in series at the same approximate height. These elbows are can be placed remotely from the deposit if necessary, lengthening the first elbow arranged after the deposit of fuel, without reducing performance appreciable.
Este dispositivo se puede fabricar en origen con el depósito o se puede conectar a un depósito ya existente mediante el acoplamiento del primer codo al orificio de salida del conducto descendente del rebosadero.This device can be manufactured at source with the deposit or can be connected to an existing deposit by the coupling of the first elbow to the exit hole of the duct descending from the overflow.
En el caso de que el vehículo o aparato se encuentre en un lugar muy caluroso puede ser ventajoso la utilización de un ventilador eléctrico enfocado hacia los codos y tramos ascendentes y descendentes del dispositivo para su refrigeración, lo cual aumenta la posibilidad de condensación de los gases evaporados. Este ventilador eléctrico puede estar asociado a un sensor de temperatura para su accionamiento partir de una cierta temperatura límite y a un temporizador que define cuanto tiempo está encendido.In the event that the vehicle or device is find in a very hot place it can be advantageous to use of an electric fan focused on the elbows and ascending and descending sections of the device for refrigeration, which increases the possibility of condensation of evaporated gases This electric fan can be associated to a temperature sensor for its operation from a certain temperature limit and a timer that defines how much Time is on.
Para complementar la descripción que se está realizando y con objeto de facilitar la comprensión de las características de la invención, se acompaña a la presente memoria descriptiva un juego de dibujos en los que, con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being performing and in order to facilitate the understanding of characteristics of the invention, is attached herein descriptive a set of drawings in which, for illustrative purposes and not limiting, the following has been represented:
- La figura 1 muestra una vista en alzado del dispositivo de la invención acoplado al depósito de combustible.- Figure 1 shows an elevation view of the device of the invention coupled to the fuel tank.
- La figura 2 muestra una vista en alzado del dispositivo conformado en forma de espiral.- Figure 2 shows an elevation view of the Spiral shaped device.
- La figura 3 muestra una vista en alzado del dispositivo con el ventilador eléctrico de refrigeración.- Figure 3 shows an elevation view of the device with electric cooling fan.
Como se puede observar en las figuras referenciadas, el dispositivo está acoplado a un depósito (1) de combustible gasolina por una toma de conexión (11) en su parte superior y que está prolongada en un conducto descendente (12), hacia unos codos (21) dispuestos en serie a través de unos conductos (22) ascendentes y descendentes con unos codos invertidos (23) intermedios, encontrándose el último conducto (22) descendente prolongado hasta un orificio (24) de descarga en una posición sensiblemente inferior.As can be seen in the figures referenced, the device is coupled to a reservoir (1) of gasoline fuel through a connection socket (11) in its part upper and prolonged in a descending duct (12), towards some elbows (21) arranged in series through some ascending and descending ducts (22) with inverted elbows (23) intermediate, the last duct (22) descending extended to a discharge hole (24) in one position noticeably inferior.
En la figura 2, está representado el dispositivo con los codos (21, 23) anidados, configurando una espiral alargada verticalmente, pudiendo estar el orificio (24) a varias alturas.In figure 2, the device is represented with nested elbows (21, 23), configuring an elongated spiral vertically, the hole (24) being able to be at various heights.
En la figura 3, está representado el dispositivo de la figura 1 encontrándose frente al mismo un ventilador eléctrico (3) de proyección de aire sobre su contorno exterior para su refrigeración y provocar una mayor condensación de los vapores y gases del combustible. El ventilador eléctrico (3) está asociado con un sensor (4) de temperatura ambiente para su activación y a un temporizador (5) que regula el tiempo de actividad.In figure 3, the device is represented of figure 1 being in front of it a fan electric (3) air projection on its outer contour to its cooling and cause greater condensation of the vapors and fuel gases The electric fan (3) is associated with a room temperature sensor (4) for activation and at a timer (5) that regulates the activity time.
Una vez descrita suficientemente la naturaleza de la invención, así como un ejemplo de realización preferente, se hace constar a los efectos oportunos que los materiales, forma, tamaño y disposición de los elementos descritos podrán ser modificados, siempre y cuando ello no suponga una alteración de las características esenciales de la invención que se reivindican a continuación.Once nature is sufficiently described of the invention, as well as a preferred embodiment, for the appropriate purposes that the materials, form, size and arrangement of the elements described may be modified, as long as this does not imply an alteration of the essential features of the invention claimed in continuation.
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2007/000452 WO2009013362A1 (en) | 2007-07-24 | 2007-07-24 | Device for collecting gases for fuel tanks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2376452A1 true ES2376452A1 (en) | 2012-03-14 |
| ES2376452B1 ES2376452B1 (en) | 2013-03-13 |
Family
ID=40281029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200950066A Expired - Fee Related ES2376452B1 (en) | 2007-07-24 | 2007-07-24 | GAS COLLECTION DEVICE FOR FUEL TANKS. |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES2376452B1 (en) |
| WO (1) | WO2009013362A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE533837C2 (en) * | 2009-06-08 | 2011-02-01 | Scania Cv Ab | A bleeding |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1062315A (en) * | 1965-02-25 | 1967-03-22 | Vauxhall Motors Ltd | Fuel tank venting |
| DE2223205A1 (en) * | 1972-05-12 | 1973-11-22 | Bayerische Motoren Werke Ag | FUEL TANK FOR MOTOR VEHICLES, IN PARTICULAR PERSONAL CARS |
| US4369891A (en) * | 1980-08-30 | 1983-01-25 | Kato Hatsujo Kaisha, Ltd. | Structure of a breather pipe for gasoline tanks |
| US4799509A (en) * | 1986-09-18 | 1989-01-24 | Daimler-Benz Aktiengesellschaft | Venting arrangement for fuel tanks of motor vehicles |
| US5255735A (en) * | 1992-12-21 | 1993-10-26 | Ford Motor Company | Fuel vapor recovery device |
| DE4322728A1 (en) * | 1993-07-08 | 1995-01-12 | Daimler Benz Ag | Fuel tank, especially for motor vehicles |
-
2007
- 2007-07-24 ES ES200950066A patent/ES2376452B1/en not_active Expired - Fee Related
- 2007-07-24 WO PCT/ES2007/000452 patent/WO2009013362A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1062315A (en) * | 1965-02-25 | 1967-03-22 | Vauxhall Motors Ltd | Fuel tank venting |
| DE2223205A1 (en) * | 1972-05-12 | 1973-11-22 | Bayerische Motoren Werke Ag | FUEL TANK FOR MOTOR VEHICLES, IN PARTICULAR PERSONAL CARS |
| US4369891A (en) * | 1980-08-30 | 1983-01-25 | Kato Hatsujo Kaisha, Ltd. | Structure of a breather pipe for gasoline tanks |
| US4799509A (en) * | 1986-09-18 | 1989-01-24 | Daimler-Benz Aktiengesellschaft | Venting arrangement for fuel tanks of motor vehicles |
| US5255735A (en) * | 1992-12-21 | 1993-10-26 | Ford Motor Company | Fuel vapor recovery device |
| DE4322728A1 (en) * | 1993-07-08 | 1995-01-12 | Daimler Benz Ag | Fuel tank, especially for motor vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009013362A1 (en) | 2009-01-29 |
| ES2376452B1 (en) | 2013-03-13 |
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| FA2A | Application withdrawn |
Effective date: 20110822 |
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