Abstract:
The present invention relates to a method for supplying fuel for a motor of a vehicle by a fuel supply system comprising: a first tank (2, 22) for containing a first fuel; supply means (5, 41) for supplying fuel to the motor; a supply line, for allowing said first fuel to pass from said first tank (2, 22) to said supply means (5, 41); a return line, for allowing fuel to pass from said supply means (5, 41) to said first tank (2, 22); a recirculating line (10, 30), connected with said supply line and said return line, for allowing fuel to pass from said return line to said supply line; and valve means (9, 12; 45, 46), configured to selectively direct fuel from said return line to said supply line by said recirculating line (10, 30), or to said first tank (2, 22); wherein said method comprises the steps of controlling the speed vehicle; controlling the vehicle motor load; defining a first threshold value of the vehicle speed; defining a second threshold value for the vehicle motor load; letting said first fuel passing from said first tank (2, 22) to said supply means (5, 41) through said supply line, and from said supply means (5, 41) to said first tank (2, 22) through said return line, preventing passage of fuel along said recirculating line (10, 30), when the vehicle speed is lower than said first threshold value and/or motor load is lower than said second threshold value; or making said first fuel passing from said first tank (2, 22) to said supply means (5, 41) through said supply line and then through a closed circuit comprising a part of said return line, said recirculating line (10, 30) and a portion of said supply line, permitting passage of said first fuel through said recirculating line (10, 30), so that said first fuel arrives again within said supply means (5, 41), when the vehicle speed is higher than said first threshold value and motor load is higher than said second threshold value, so as to prevent an excessive increase within said first tank caused by inlet within the first tank (2, 22) of the first fuel warm arriving from said supply means (5, 41).
Abstract:
본 발명은 연료 공급 시스템 및 방법에 관한 것으로, 더욱 상세하게는 LNG를 펌핑하여 선박용 엔진으로 공급하면서, 내압성 탱크의 내부 압력이 선박용 엔진의 필요 압력보다 높아지면 BOG를 선박용 엔진으로 공급하여 내압성 탱크의 내부 압력을 제어하되, 선박용 엔진의 상류에서 LNG 및 BOG를 공급하는 라인의 합류되는 지점에 이덕터(eductor)를 마련하여, LNG 및 BOG의 공급 라인을 동시에 제어할 수 있는 것을 특징으로 하는 연료 공급 시스템 및 방법에 관한 것이다.
Abstract:
A fuel storage and delivery system for a sea-going vessel comprises an evap- orator for vaporizing liquid gas or a pressure reducing valve, and an engine- specific fuel input subsystem for delivering vaporized gas from said evaporator or pressure reducing valve to an engine of said sea-going vessel. A tank room constitutes a gastight enclosure, in which said evaporator or pressure reducing valve is located. Said fuel input subsystem is also located inside said tank room.
Abstract:
LNG를 저장하고 있는 저장탱크와, 상기 저장탱크에 저장되어 있는 LNG를 연료로서 사용하는 주 엔진 및 부 엔진을 갖춘 선박의 액화가스 처리 시스템이 개시된다. 상기 액화가스 처리 시스템은, 상기 저장탱크에서 발생된 BOG를 압축기에 의해 압축하여 상기 주 엔진에 연료로서 공급하는 BOG 주 공급라인과; 상기 저장탱크에서 발생된 BOG를 압축기에 의해 압축하여 상기 부 엔진에 연료로서 공급하는 BOG 부 공급라인과; 상기 저장탱크에 저장된 LNG를 펌프에 의해 압축하여 상기 주 엔진에 연료로서 공급하는 LNG 주 공급라인과; 상기 저장탱크에 저장된 LNG를 펌프에 의해 압축하여 상기 부 엔진에 연료로서 공급하는 LNG 부 공급라인; 을 포함한다. 상기 주 엔진에 공급되는 연료는 150 ~ 400 bara로 압축된다.
Abstract:
The invention relates to a liquefied gas outlet system (100) for liquefied gas tank to discharge liquefied gas from below its surface level in the tank (10), the outlet system comprising a first conduit section (102) attached by its outer periphery at a location of a opening (104) arranged to a wall section (24) of the tank serving as an liquefied gas outlet, at least one second conduit section arranged in flow connection with the first conduit section (102), via which at least one second conduit section (106,106') the first conduit section may be arranged in flow communication with the tank inner volume (30). The system further comprises a safety vessel (110) arranged to circumscribe the opening (104) in a secured manner inside the tank, and that the safety vessel is also secured to the at least one second conduit (106, 106'), and that the second conduit section is provided with a closing unit (108,108'). Invention relates also to a tank for storing liquefied gas having a liquefied gas outlet system, as well as to a method of building or rebuilding a liquefied gas tank.
Abstract:
An internal combustion engine comprises a chamber having a longitudinal centreline, inlet valving operable to admit constituents of a combustible mixture into the chamber for combustion therein to provide a pressure increase and outlet valving operable to release an outflow of liquid from the chamber under the influence of that pressure increase as an energy output of the chamber. The chamber has a flowpath defined therein for flow of the liquid towards the outlet valving. The flowpath diverges from centreline in a downstream direction thereof and has a cross-section area in a direction perpendicular to the centreline that remains substantially equal or decreases in the downstream direction of the flowpath.
Abstract:
An internal combustion engine (10) comprises a chamber (12), inlet valving (24, 26) operable to admit constituents of a combustible mixture into that chamber for combustion in that chamber to provide a pressure increase in that chamber, outlet valving (16) operable to release an outflow of liquid from that chamber under an influence of that pressure increase as an energy output of that chamber and an output storage device (14) for receiving that outflow of liquid from that chamber. That output storage device (14) is arranged such that that outflow of liquid is released into a region of that output storage device that is maintained substantially free of stored liquid at least while that liquid flows into that output storage device.
Abstract:
The invention concerns an extraction valve (4) for overpressurised gas flowing from a compressed gas reservoir (2), having a valve seat carrier (30), Including a conical valve seat (31) emerging centrally into an outflow chamber (20), having an extraction piston (17), which is mobile in its axial direction (4) at least indirectly via an electromagnetic coil (12), and which includes a valve body (32) cooperating with the valve seat (31), and an inflow chamber (10) for the pressurised gas, The extraction valve according to the invention is characterised in that the inflow chamber (10) is designed totally or partially on the circumference of a central axis (A) of the extraction piston (17) and is connected in the axial direction of the extraction piston (17) against a flow direction (E) of the gas when the extraction piston (17) is in open position, between the valve seat (31 ) and the valve body (32) via an intermediate connection (bores 34) with an intermediate volume (35), which comprises for its own part a connection (opening 38) with the region In which the valve seat (31 ) and the valve body (32) co-operate.
Abstract:
The invention relates to a fuel storage system for storing dimethylether (DME), a blend including DME, or other similar highly volatile fuel on a vehicle. The fuel storage system comprising a main storage tank (11), an expansion tank (12), a fuel filling receptacle (13) configured to receive a fuel filling nozzle (22) of a filling station, and a valve arrangement (16) having at least a normal operating setting and a fuel filling setting. The valve arrangement (16) in the normal operating setting provides a fuel passage between the main storage tank (11) and the expansion tank (12), and the valve arrangement (16) in the fuel filling setting both provides a fuel passage between the fuel filling receptacle (13) and the main storage tank (11) and prevents fuel flow between the main storage tank (11) and the expansion tank (12). The fuel storage system is configured to mechanically prevent disconnection of the fuel filling nozzle (22) from the fuel filling receptacle (13) unless the valve arrangement (16) is in the normal operating setting. The invention also relates to a corresponding method, as well as a further example embodiment of the fuel storage system.