The invention relates to a device for compressing a fluid, said device having a compression chamber accommodating a piston that is able to move in translation between the first and second ends of the compression chamber, the device comprising a regeneration circuit connecting the first and second ends of the compression chamber and having a regenerator, the supply pipe comprising a set of one or more valves, the device comprising at least one pipe for discharging the compressed fluid, said discharge pipe comprising an upstream end connected to the compression chamber and a downstream end intended to be connected to a receiver of the compressed fluid, wherein the regeneration circuit comprises, between the regenerator and the first end of the compression chamber, a heat exchanger that is configured to ensure an exchange of heat between the flow of fluid that has passed through the regenerator and a cold source.

A system for collecting, generating, and transmitting Gigawatt scale energy is provided. The system comprises a geographically dispersed network comprising a plurality of nodes, each node comprising: a water source; renewable energy sources comprising: a wind turbine string of a plurality of wind turbines; and a solar photovoltaic string; a nodal substation in electrical communication with the renewable energy sources. The nodal substation comprises: at least one electrolyser in electrical communication with the renewable energy sources, the at least one electrolyser configured to convert water from the water source into hydrogen, or hydrogen compound, with electricity from the renewable energy sources; a compressor to compress hydrogen, or hydrogen compound, from the at least one electrolyser into a pipeline fluidly connecting each node. The nodal substation is positioned a distance from the renewable energy sources such that energy transfer efficiency to a load exceeds traditional high voltage power transmission.

The invention relates to a fluid compression apparatus comprising a first and a second compression chamber, an intake system communicating with the first compression chamber, a transfer system communicating with the first and second compression chambers, and a mobile piston for ensuring the compression of the fluid in the first and second compression chambers. The apparatus further comprises a discharge port which communicates with the second compression chamber and is configured to allow the outlet of compressed fluid, wherein the second compression chamber is defined by a part of the body of the piston and a fixed wall of the apparatus, the piston being translationally mobile according to a longitudinal direction, the piston having a tubular portion mounted around a fixed central guide, a terminal end of the central guide forming the fixed wall defining a part of the second compression chamber. The apparatus further comprises a sealing system formed between the central guide and the piston according to the longitudinal direction of translation of the piston, the intake system being located at a first end of the apparatus, the discharge port being located at a second end of the apparatus and the transfer system being located between the intake system and the discharge port.

An apparatus and process for cooling down a liquid hydrogen or other cryogenic fluid pump can be configured to allow for a quick startup that also helps minimize hydrogen losses. Some embodiments can utilize a blow-by circuit configured and arranged to support the cryogenic cooldown operation for the pump that can minimize hydrogen loss while allowing substantially improved pump startup times. Some embodiments can utilize at least one temperature sensor to monitor temperature and an adjustable control valve that can facilitate the flow of the fluid utilized to perform the cooldown of the pump.

An elevating apparatus that can eliminate a need for a permanently installed large hoist is provided. The elevating apparatus is used to elevate and lower a submersible pump in a pump column. The submersible pump is used for delivering liquefied gas. The elevating apparatus includes a cable including multiple split cables and multiple coupling links configured to detachably couple the multiple split cables to each other; and a take-up device coupled to the cable.

A liquefied light hydrocarbon (LLH) fuel system for a hybrid vehicle is disclosed. The fuel system comprises an insulated fuel tank having a buffer space, a fuel control valve, wherein an outlet to the fuel tank connects to a first end of the fuel line, wherein an inlet of the fuel control valve connects to a second end of the fuel line and wherein an outlet of the fuel control valve is adapted to connect to a fuel inlet to an internal combustion engine; and a tank heating system comprising: a heating element, wherein the heating element is disposed adjacent to or within the fuel tank; a heating power control system, wherein the heating power control system controls the amount of heat produced by the heating element to vaporize the LLH fuel. Methods of using the fuel system are also disclosed.

An installation for pumping cryogenic fluid comprising a fluid tight enclosure designed to contain a bath of cryogenic fluid, the enclosure housing a compression chamber configured to compress the fluid in the compression chamber, the piston being mounted at a first end of a rod. The installation including a drive mechanism driving a second end of the rod in a back and forth movement in a longitudinal direction of travel. In the configuration of operation of the installation, the longitudinal direction of travel of the piston rod being vertical, the motor being fixed rigidly to an upper mounting structure. The mechanical conversion system is also fixed rigidly to an upper mounting structure which comprises the mounting structure for the motor or a separate mounting structure rigidly connected to the mounting structure for the motor.

A pump is disclosed. The pump may include at least one pumping mechanism. The at least one pumping mechanism may include a barrel formed of a substrate having a bore and a plunger formed of a substrate and slidably disposed within the bore in the barrel. The pump may further include a coating disposed on the plunger. The coating may include a main layer containing a tribological material and a sacrificial break-in layer disposed on the main layer, the break-in layer containing a tribological material.

A pumping mechanism is disclosed. The pumping mechanism may include a barrel formed of a barrel substrate and including a first end surface, a second end surface opposite the first end surface, and a bore between the first and second end surfaces. Each of the first and second end surfaces and the bore is coated with a metal plating. The pumping mechanism may further include a plunger formed of a plunger substrate and configured to be slidably disposed in the bore in barrel, the plunger substrate having a tribological coating.

The invention relates to a fluid compression apparatus and method comprising first and second compression chambers, an intake system into the first chamber, a transfer system from the first chamber to the second chamber, a piston for ensuring the compression of the fluid in the first and second chambers, and an orifice for discharging the compressed fluid, the intake system comprising one or more valves, the apparatus further comprising a discharge orifice allowing communication between the first compression chamber and the bath to allow surplus liquid trapped in the first compression chamber to leave during a compression movement of the piston in the first compression chamber, the apparatus comprising a discharge valve configured to control the discharge of liquid via the discharge orifice and to prevent fluid from entering the compression chamber via the discharge orifice.