A cryogenic liquid conditioning system with flow driven by head pressure of liquid contained in a cryogenic storage tank, and a cryogenic liquid delivery system with flow driven by pressure in the vapor space of the cryogenic storage tank. A heat exchanger, coupled to the cryogenic storage tank located below the liquid level of the tank, operates as a portion of both the conditioning system and delivery system. A piping system moves cryogenic liquid to the heat exchanger where it is vaporized, and then moves vaporized liquid to the vapor space of the cryogenic tank and an application. The piping system includes a controller and valve(s) for controlling flow through the system. A sensor for measuring the saturated pressure of cryogenic liquid is coupled to the storage tank or piping system, and is in communication with the flow controller.

Split cycle engine that runs on gaseous fuels such as natural gas and synthesis gas (syngas) and to a method of operating the same. The engine includes a first compression chamber for compressing the gaseous fuel, means for supplying the gaseous fuel to the first compression chamber at a level of concentration that prevents predetonation of the fuel during compression, a second compression chamber for compressing air, a combustion chamber in which the compressed fuel and air are combined to reduce the concentration of the fuel to a level that allows the fuel to burn and expand in the combustion chamber, and an expansion chamber having an output member which is driven by expanding gas from the combustion chamber. Turbochargers or blowers pressurize and increase the volume of the fuel and air delivered to the respective compression chambers, and the concentration of the fuel is progressively reduced by the injection of air at spaced intervals as the fuel travels toward the compression chamber.

A fuel injection system is provided. The system includes a completely sealed housing surrounding the key components of the fuel injection system.

A method and system for recycling permeated gas is disclosed. A container encapsulating a pressure vessel defines a containment volume. Gas permeating through the pressure vessel is captured in the containment volume. When a sensor detects a threshold level of permeated gas captured within the containment volume, a control module sends a command to open a purge valve. The open purge valve allows permeated gas captured within the containment volume to be supplied to an engine, a repressurization unit, or a secondary container.

The invention relates to a bi-fuel system (100) and a method for operating such a system, in which the following steps are performed by a control system (104) being part of the bi-fuel system (100): determining whether a relative amount of first fuel in the second fuel tank (2) is less than a predetermined minimum relative amount of first fuel in the second fuel tank (MIX %_min), and if said relative amount is less than MIX %_min, supplying first fuel via the fuel return line (18) to the second fuel tank (2), by temporarily opening the return line shut-off valve (12).

A fuel extraction and pressurization system for delivering a gaseous fuel from a adsorbent fuel tank to a fuel injection system of an internal combustion engine, wherein the fuel extraction and pressurization system comprises one or more components for applying a vacuum to the interior of the tank to facilitate the extraction of the adsorbed gaseous fuel from the tank and compressing the extracted gaseous fuel to a pressure appropriate for the fuel injection system.

A fuel transfer bypass tube and system are provided. The fuel transfer bypass system utilizes a fuel bypass tube and a fuel supply pump to provide fuel to an engine without requiring modification to the engine or preexisting system. The fuel transfer bypass system includes multiple fuel lines that draw fuel from a source to pass through a filter and the fuel bypass tube. The fuel bypass tube includes a single monolithic structure able to reliably transfer the fuel under pressure through an inlet port to an outlet port via a channel. The fuel is delivered to the engine through a line secured to the outlet port. Each inlet and outlet port on the bypass tube includes an annular channel that receives O-rings to form a fluid seal with the respective mounting system. The bypass pump draws electrical power from the engine through a connector and an adaptor without any additional modifications.

A fuel transfer bypass tube and system are provided. The fuel transfer bypass system utilizes a fuel bypass tube and a fuel supply pump to provide fuel to an engine without requiring modification to the engine or preexisting system. The fuel transfer bypass system includes multiple fuel lines that draw fuel from a source to pass through a filter and the fuel bypass tube. The fuel bypass tube includes a single monolithic structure able to reliably transfer the fuel under pressure through an inlet port to an outlet port via a channel. The fuel is delivered to the engine through a line secured to the outlet port. Each inlet and outlet port on the bypass tube includes an annular channel that receives O-rings to form a fluid seal with the respective mounting system. The bypass pump draws electrical power from the engine through a connector and an adaptor without any additional modifications.

A fuel transfer bypass tube and system are provided. The fuel transfer bypass system utilizes a fuel bypass tube and a fuel supply pump to provide fuel to an engine without requiring modification to the engine or preexisting system. The fuel transfer bypass system includes multiple fuel lines that draw fuel from a source to pass through a filter and the fuel bypass tube. The fuel bypass tube includes a single monolithic structure able to reliably transfer the fuel under pressure through an inlet port to an outlet port via a channel. The fuel is delivered to the engine through a line secured to the outlet port. Each inlet and outlet port on the bypass tube includes an annular channel that receives O-rings to form a fluid seal with the respective mounting system. The bypass pump draws electrical power from the engine through a connector and an adaptor without any additional modifications.