303results about How to "Reduce the amount of fuel" patented technology

The present invention is directed to an evaporative emissions control apparatus for minimizing fuel vapor emissions from a fuel storage system in a vehicle with an internal combustion engine. More specifically, the present invention is directed to an evaporative emissions control apparatus comprising a canister filled with a hydrocarbon adsorbent. The present invention is also directed an evaporative emissions control apparatus comprising a support substrate, which is coated with a hydrocarbon adsorbent slurry.

A control system for a rail vehicle system including a lead powered unit and a remote powered unit is provided. The system includes a user interface, a master isolation module and a slave controller. The user interface is disposed in the lead powered unit and is configured to receive an isolation command to turn on or off the remote powered unit. The master isolation module is configured to receive the isolation command from the user interface and to communicate an instruction based on the isolation command. The slave controller is configured to receive the instruction from the master isolation module. The slave controller causes the remote powered unit to supply tractive force to propel the rail vehicle system when the instruction directs the slave controller to turn on the remote powered unit. The slave controller causes the remote powered unit to withhold the tractive force when the instruction directs the slave controller to turn off the remote powered unit.

A fuel nature measuring device for measuring the nature of fuel stored in a fuel tank includes a measurement passage, a gas flow generator, a pressure detector, an concentration operator, a temperature detector, and a volatility calculator. The measurement passage has an orifice. The gas flow generator generates gas flow in the measurement passage. The pressure detector detects a differential pressure between opposite ends of the orifice. The concentration operator determines a concentration of evaporated fuel in the fuel tank based on the differential pressure detected when the opposite ends of the measurement passage communicate with the fuel tank and the fuel flows in the measurement passage. The temperature detector determines a temperature of the fuel in the fuel tank. The volatility calculator calculates a volatility of the fuel in the fuel tank based on the concentration of the evaporated fuel and the temperature of the fuel in the tank.

The fuel tank ventilating device includes a fuel cutoff device, and a connector pipe connecting the fuel cutoff device with a canister. The fuel cutoff device includes a first fuel cutoff valve, a second fuel cutoff valve, and a positive pressure valve; the first flow pipe and the second flow pipe are connected to a third flow pipe by a connecting part, and are connected to the canister. With the first fuel cutoff valve in a first submersion state, fuel that has collected in the first flow pipe will be returned to the fuel tank on the basis of a differential pressure between tank internal pressure and the pipe internal pressure bearing on the fuel inside the first flow pipe. With the first fuel cutoff valve in a submersion state, fuel that has leaked into the second flow pipe will not reach the connecting part.

The present invention provides a humid air turbine having a compressor, a humidificator for generating humid air by adding moisture to compressed air supplied from the compressor, a combustor, a turbine, a recuperator for effecting heat exchange between exhaust from the turbine and the humid air, an economizer for effecting heat exchange between exhaust from the recuperator and water, and a system for supplying the water heated by the economizer to the humidificator. The humid air turbine includes a temperature measurement device for measuring the temperature of gas discharged from the economizer, and a control device for adjusting the amount of moisture to be supplied to the humidificator in accordance with a temperature signal from the temperature measurement device. The present invention assures low NOx of combustor and flame stability before and after water addition to the humid air turbine.

A trap canister is configured to capture fuel vapor contained in breakthrough gas discharged from an adsorbent canister. The trap canister has a housing defining an adsorption chamber therein, a breathable partition member disposed in the housing and dividing the adsorption chamber into a first chamber and a second chamber, an adsorbent filled in the first chamber and the second chamber, and a latent heal storage material tilled in the first chamber in a mixed manner with the adsorbent. The first chamber is configured to receive breakthrough gas, while the second chamber is configured to communicate with the atmosphere. The first chamber has a cross-sectional area larger than that of the second chamber.

A main passage mounting a throttle valve and an air bypass flow passage for reducing HC emission by promoting atomization of the fuel spray injected from the assembly pipe fuel injector are integrated in a body of an intake air control device arranged upstream of an assembly pipe in one-piece structure to form a unit. Thereby, the intake air control device can be easily manufactured, and easily mounted on and dismounted from the intake air system. An amount of HC emitted at warming-up operation of an internal combustion engine is reduced by efficiently supplying fuel spray injected from an assembly pipe fuel injector at starting and warming-up operations to the internal combustion engine.

A fuel tank is provided for a motorcycle having a main body part and a downward swelling part that is opened upward and attached to a bottom part of the fuel tank. The inside of the downward swelling part is connected to the inside of the main body part, thereabove. A fuel pump is provided having a suction part disposed in the downward swelling element and a portion above the suction part installed in the main body part of the fuel tank. A fuel retaining member is also provided in the downward swelling part, whereby fuel retained by the fuel retaining member is sucked by the suction part.

An intake device having an intake channel that includes an intake channel section is provided. A butterfly valve is pivotably mounted in the intake channel section. A dividing wall is disposed downstream of the butterfly valve and divides the intake channel section into an air duct and a mixture duct. The air duct has a flow cross-section that is greater than the flow cross-section of the mixture duct. A fuel jet opens into the mixture duct.

An internal combustion engine including an in-cylinder injection injector and an intake port-injection injector. An ECU includes a fuel injection duration calculation portion that calculates a requested fuel injection duration and a fuel injection control portion that causes the in-cylinder injection injector to inject fuel during the compression stroke during the cold start of the engine, and that causes fuel to be injected also in a manner other than the fuel injection performed by the in-cylinder injection injector during the compression stroke if the requested fuel injection duration is longer than or equal to an interval time. Therefore, even if the requested fuel injection duration is longer than or equal to the interval time, the emissions can be reduced while a startability during a cold start of the internal combustion engine is secured.

In a port fuel injection lean burn engine, attaching of fuel spray onto a wall surface, which is a problem at atomizing injected fuel, is reduced, and the quality and shaping state of the mixed gas in cylinders of the engine is improved. The engine comprises a fuel injector 1; an intake valve 6 for opening and closing an intake port; and an intake air flow control device 10. The injected fuel is shaped in a low penetration fuel spray when the engine is operated in a low load and low rotation speed, and the injected fuel is shaped in a high penetration fuel spray when the engine is operated in a high load and high rotation speed. The fuel is injected in synchronism with the intake stroke of the engine, and is transported by the air flow flowing through the intake air flow control device 10 to suppress attaching of fuel spray onto a wall surface.

When the ratio of the amount of vaporized fuel (purge amount) to be introduced into an intake passage of an engine from a fuel tank through a purge passage pipe, a purge control valve, etc. to the total amount of fuel (total fuel amount) to be supplied to the engine is large, an abnormality determination system acquires, as a parameter Pon, the air-fuel ratio imbalance index value that increases as the difference between the air-fuel ratios of the respective cylinders increases. When the purge amount is small relative to the total fuel amount, the determination system acquires the air-fuel ratio imbalance index value as a parameter Poff. When the difference between the parameters Pon and Poff is less than a predetermined value and at least one of these parameters is greater than a predetermined threshold value, the determination system determines that an inter-cylinder air intake amount variation abnormality is occurring.

A process for separating hydrocarbons from an LNG, including the steps of: distilling a feed LNG in a first distillation column to separate it into a fraction enriched with methane and a fraction enriched with components heavier than methane; distilling the fraction enriched with components heavier than methane in a second distillation column to separate it into a fraction enriched with ethane and a fraction enriched with components heavier than ethane; recovering the cryogenic heat of the feed LNG to be fed into the first distillation column or of the liquid inside the first distillation column by using a heat transfer medium; and cooling the overhead gas of the second distillation column by using the heat transfer medium which has recovered the cryogenic heat to condense at least part of the overhead gas of the second distillation column. An apparatus for carrying out this process.