Proposed is a pretreatment desulfurization system including a desulfurization agent storage tank for storing a liquid-phase pretreatment desulfurization agent and a metering pump for supplying the liquid-phase pretreatment desulfurization agent from the desulfurization agent storage tank to a fuel supply line through which marine fuel oil is supplied to a marine engine in a predetermined ratio. Since a fluid mixture composed of the marine fuel oil and the pretreatment desulfurization agent is supplied to the marine engine, sulfur oxides are adsorbed and removed during combustion of the fluid mixture.

A high pressure fuel pump includes: a pump body that forms a suction passage and a pressurizing chamber and slidably supports a plunger; and a control valve that opens a connection between the suction passage and the pressurizing chamber in a suction stroke, during which the plunger is driven toward a suction side for suctioning fuel into the pressurizing chamber, while the control valve controls closing timing, at which the connection between the suction passage and the pressurizing chamber is closed by the control valve in a delivery stroke, during which the plunger is driven toward a delivery side for delivering the fuel out of the pressurizing chamber. The pump body forms a release passage that is communicated with the suction passage. The release passage relieves the fuel, which is pressurized by the plunger, from the pressurizing chamber before the closing timing during the delivery stroke.

A fuel delivery system for controlling an inlet pressure of a prime mover in a transport climate control system is provided. The fuel delivery system includes a fuel tank, a pressure regulator, a pump disposed downstream of the fuel tank, a first filter disposed downstream of the pump, and the prime mover disposed downstream of the first filter. The prime mover is located above the fuel tank in a vertical direction. The pump is configured to provide a first fuel flow through the first filter. The prime mover is configured to accept a first portion of the first fuel flow and is configured to provide a return fuel flow. The pressure regulator is disposed downstream of the first filter. The pressure regulator is configured to accept a second portion of the first fuel flow, and to accept a pressure of the return fuel flow as a reference pressure.

The present disclosure relates to a fuel pump module, and more particularly, to a fuel pump module including a flange module and a reservoir module, in which when a fuel delivery pipe for supplying filtered fuel from the reservoir module to the flange module is coupled to the reservoir module, since the fuel deliver pipe may be coupled to the reservoir module to a desired position in an axial direction and to be prevented from rotating in an axial direction, the fuel delivery pipe may be prevented from interfering with a guide rod connecting the flange module and the reservoir module in a vertical direction, thereby not only preventing the occurrence of fire, but also increasing a common use rate of the reservoir module.

An apparatus is provided for purging fuel evaporation gas in a fuel system. The apparatus increases an amount of fuel evaporation gas that is desorbed from a canister during driving of an engine, and thus prevents fuel evaporation gas adsorbed to the canister from being discharged to the atmosphere.

The invention relates to an internal combustion engine that comprises a first Brayton cycle comprising a mixed ionic-electronic conducting (MIEC) membrane that separates the O.sub.2 from the air such that the suctioned air current is free from N.sub.2; a second Brayton cycle combined in a binary manner with the first Brayton cycle and nested with a cycle selected from an Otto cycle and a diesel cycle performed by means of oxy-combustion. The second Brayton cycle transmits mechanical energy and thermal energy from exhaust gases to the first Brayton cycle. The first Brayton cycle provides to the second Brayton cycle compressed O.sub.2 from the MIEC membrane. By means of the present engine, the NOx emission into the atmosphere is prevented by the separation of N.sub.2 in the MIEC membrane.

The invention relates to a fluid circuit (3) comprising: —a supply line (5) for carrying a fluid from a pump (4) connected to a fluid tank (2) to an equipment (8), the supply line having a portion which is divided into a main line (10) including a heat exchanger (13), and a by-pass line (15) for by-passing said heat exchanger; —a first valve (31) for controlling the respective fluid flows in the main line (10) and in the by-pass line (15), and a first control device (33) for controlling the first valve (31) depending on a first parameter (T) of the fluid; —a pressure regulation circuit for carrying fluid from the supply line (5) towards the fluid tank (2), said pressure regulation circuit comprising a pressure regulation valve (23) for controlling the flow of fluid directed back to the fluid tank (2); wherein the pressure regulation circuit comprises: —a first recirculation line (21) branching from the supply line (5) downstream from the by-pass line outlet (17); —a second recirculation line (22) branching from the supply line (5) upstream from the by-pass line inlet (16); —a second valve (32) for controlling the respective fluid flows in the first recirculation line (21) and in the second recirculation line (22), and a second control device (33) for controlling the first valve (31) depending on a second parameter (T) of the fluid.

A fuel pump system, comprising an inlet line and a motorized pump, a first selector valve in fluid communication with an inlet line at a first inlet port and in fluid communication with the motorized pump outlet via a first outlet branch at a second inlet port to receive fuel from the motorized pump outlet. The system can also include a main fuel pump in fluid communication with the first selector valve and a second selector valve, wherein the second selector valve can be in fluid communication with the main fuel pump and in fluid communication with the motorized pump outlet.

An engine including a main fuel injection valve, a pilot fuel injection valve, a liquid fuel supply rail pipe, and a pilot fuel supply rail pipe. The main fuel injection valve supplies liquid fuel from the liquid fuel supply rail pipe to a combustion chamber during combustion in a diffusion combustion system. The pilot fuel injection valve supplies pilot fuel from the pilot fuel supply rail pipe to the combustion chamber in order to ignite gaseous fuel during combustion in a premixed combustion system. The liquid fuel supply rail pipe is disposed at one side of an imaginary vertical plane including an axis of a crank shaft. The pilot fuel supply rail pipe is disposed at the side of the imaginary vertical plane at which the liquid fuel supply rail pipe is disposed.

A fuel booster system having a fuel inlet port, a fuel outlet port, and a fuel accumulator fluidically coupled to both ports. The fuel inlet port allows fuel to be delivered to the fuel accumulator and the fuel outlet port is in fluid communication with a combustion engine to deliver fuel from the fuel booster system to the combustion engine. A source of pressurized gas is also fluidically coupled to the fuel accumulator to deliver pressurized gas through a gas port in one end of the fuel accumulator. A piston is located within the fuel accumulator and the source of pressurized gas can be discharged into the fuel accumulator to force accumulated fuel from the fuel accumulator and to the engine when the fuel booster system determines that the engine needs more fuel.