Abstract:
It is proposed a fuel tank leak detection system comprising: a test cell for receiving a portion of on-board fuel, said test cell comprising an inlet for receiving a portion of on-board fuel and an outlet for releasing fuel vapor into a vapor space within the fuel tank; a heater mounted within the test cell for heating the fuel in the test cell so as to create a pressure build-up within the fuel tank; and a controller for: - obtaining a first information relative to the amount of pressure build-up created within the fuel tank and a second information relative to the amount of energy introduced by the heater in the test cell; and - detecting a leak using said first and second information.
Abstract:
A fuel intake system for supplying an internal combustion engine with a fuel vapor/air mixture without the use of a carburetor or fuel injectors. The fuel intake system includes a tank holding fuel and an evaporated fuel vapor. An air inlet tube and a vapor outlet tube are coupled to the tank. A vapor conditioner is coupled between the vapor outlet tube and the engine. The vapor conditioner has a vapor conditioner throttle body with a butterfly valve. The vapor conditioner regulates the fuel vapor/air mixture by selective positioning of the butterfly valve.
Abstract:
The invention concerns a fuel system (4) that comprises a first fuel tank (20) and a second fuel tank (22). The fuel is conducted from the first fuel tank (20) to a high-pressure system (19). A main feed pump (26) feeds fuel from the first fuel tank (20) via a second line (40) and a transfer pump (28) feeds fuel from the second fuel tank (22) to the first fuel tank (20) via the first fuel line (36). A first electric motor (M1) drives the main feed pump (26), and is arranged in the first fuel tank (20). The first fuel tank (20) holds a smaller volume than the second fuel tank (22). A fuel return line (13) is arranged so as to return pressurized fuel from the high-pressure system (19) to the first fuel tank (20). The fuel system (4) further comprises an arrangement for controlling the fuel temperature in the first fuel tank (20) by controlling the flow of fuel to the first fuel tank (20). The invention also concerns a combustion engine (20) and a vehicle (1) that contains the system, and a method for controlling a fuel system (4).
Abstract:
A reciprocating piston cryogenic pump has been suspended from stroking when process fluid discharge temperature from a vaporizer dropped below a threshold to prevent freezing of a heat exchange fluid circulating through the vaporizer and damage to downstream components. Suspension of the pump results in a decrease of process fluid pressure downstream of the vaporizer, which is undesirable. In the present technique, a temperature is monitored correlating to process fluid temperature downstream of the vaporizer. The amount of process fluid discharged from the pump in each cycle is adjusted as a function of the temperature such that the average residence time of the process fluid in the vaporizer is increased as the discharge amount decreases, increasing process fluid discharge temperature. The average mass flow rate of the process fluid through the vaporizer is unchanged regardless of pump discharge amount such that process fluid pressure downstream of the vaporizer is maintained.
Abstract:
Esta invención se refiere a un dispositivo automotriz el cual permite un ahorro de combustible (GASOLINA, GAS LP y DIESEL) del orden del 20 al 40% y en algunos casos hasta el 50% dependiendo la marca del vehículo y su tecnología aplicada con una disminución de gases contaminantes de hasta un 90%. El objeto de esta invención es proporcionar por medio de su diseño y tecnología, el 22% exacto de oxígeno con la temperatura de 35°C para una mayor gasificación y aprovechamiento del combustible y así brindar mayor potencia al motor logrando con esto la mezcla estequiométrica requerida en los vehículos de combustión interna. Gracias a una construcción novedosa cuya característica es el efecto turbina que recibe el aire proveniente del filtro térmico y que a su vez es dirigido por medio del reactor instalado en la pared de fuego (múltiple de escape).
Abstract:
The molecular fuel divider (2) is a constructive intervention in the internal combustion engines (1), that contributes to their best possible function, by significantly increasing their performance, while concurrently significantly reducing fuel consumption and almost eradicating pollutant emissions. The molecular fuel divider (2) consists of a hot material conductor (5) and a blade (3), which in turn consists of its body (13), the routing separator (4) and its legs (11, 12). The molecular fuel divider (2) is positioned in the intake of the combustion air (14) of across the fuel injector (9) of an internal combustion engine (1). From the hot material conductor (5) we have a flow of hot temperature liquid or gas, from which the temperature is transferred to the blade (3) of the molecular fuel divider (2). After the blade (3) is heated, the injected on it fuel turns into gas, mixes with combustion air and due to the gaseous form of the two elements, we achieve better mixing and the desired result is the reduction in fuel consumption and almost total eradication of pollutant emission.
Abstract:
Apparatus for co-fuelling a diesel engine including a diesel engine having one or more combustion chambers; a co-fuel tank for containing a liquid co-fuel, the co-fuel tank being in fluid connection with the one or more combustion chambers; co-fuel delivery and delivery control means operatively interposed between the co-fuel tank and the one or more combustion chambers for delivering co-fuel from the co-fuel tank to the one or more combustion chambers; a liquid to gas converter operatively interposed between the co-fuel tank and the one or more combustions chambers for converting the liquid co-fuel from a liquid to a gas; a condensate return for returning any of the co-fuel which recondenses to the co-fuel tank and engine control means operatively associated with the diesel engine and the co-fuel delivery and delivery control means for controlling operation of the diesel engine and the delivery of the co-fuel to the one or more combustion chambers.
Abstract:
Free heat from an exhaust manifold of an internal combustion engine or an electric heater supplies heat to a vaporizer. Gasoline is converted from fluid to vapor in the vaporizer and sent directly to the fuel injectors. Water fog may be added to the air intake manifold. One embodiment adds a catalyst to the vaporizer to convert gasoline to propane vapor. Fuel efficiency from 30 to 43 miles per gallon has been tested.